new shit

git-svn-id: svn://10.0.0.236/branches/IMGLIB2_NEW@91713 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/modules/libpr0n/Makefile.in

@@ -0,0 +1,33 @@
+#
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#
+
+DEPTH		= ../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+DIRS		= public src decoders
+
+include $(topsrcdir)/config/rules.mk
+
+

mozilla/modules/libpr0n/decoders/Makefile.in

@@ -0,0 +1,32 @@
+#
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#
+
+DEPTH		= ../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+DIRS		= ppm png gif jpeg
+
+include $(topsrcdir)/config/rules.mk
+

mozilla/modules/libpr0n/decoders/gif/GIF2.h

@@ -0,0 +1,323 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ */
+#ifndef _GIF_H_
+#define _GIF_H_
+
+/* gif2.h  
+   The interface for the GIF87/89a decoder. 
+*/
+// List of possible parsing states
+typedef enum {
+    gif_gather,
+    gif_init,                   //1
+    gif_type,
+    gif_version,
+    gif_global_header,
+    gif_global_colormap,
+    gif_image_start,            //6
+    gif_image_header,
+    gif_image_colormap,
+    gif_image_body,
+    gif_lzw_start,
+    gif_lzw,                    //11
+    gif_sub_block,
+    gif_extension,
+    gif_control_extension,
+    gif_consume_block,
+    gif_skip_block,
+    gif_done,                   //17
+    gif_oom,
+    gif_error,
+    gif_comment_extension,
+    gif_application_extension,
+    gif_netscape_extension_block,
+    gif_consume_netscape_extension,
+    gif_consume_comment,
+    gif_delay,
+    gif_wait_for_buffer_full,
+    gif_stop_animating   //added for animation stop 
+} gstate;
+
+/* "Disposal" method indicates how the image should be handled in the
+   framebuffer before the subsequent image is displayed. */
+typedef enum 
+{
+    DISPOSE_NOT_SPECIFIED      = 0,
+    DISPOSE_KEEP               = 1, /* Leave it in the framebuffer */
+    DISPOSE_OVERWRITE_BGCOLOR  = 2, /* Overwrite with background color */
+    DISPOSE_OVERWRITE_PREVIOUS = 4  /* Save-under */
+} gdispose;
+
+/* A RGB triplet representing a single pixel in the image's colormap
+   (if present.) */
+typedef struct _GIF_RGB
+{
+  PRUint8 red, green, blue, pad; /* Windows requires the fourth byte &
+                                    many compilers pad it anyway. */
+                    
+  /* XXX: hist_count appears to be unused */                                  
+  //PRUint16 hist_count;           /* Histogram frequency count. */
+} GIF_RGB;
+    
+/* Colormap information. */
+typedef struct _GIF_ColorMap {
+    int32 num_colors;           /* Number of colors in the colormap.
+                                   A negative value can be used to denote a
+                                   possibly non-unique set. */
+    GIF_RGB *map;                /* Colormap colors. */
+    PRUint8 *index;             /* NULL, if map is in index order.  Otherwise
+                                   specifies the indices of the map entries. */
+    void *table;                /* Lookup table for this colormap.  Private to
+                                   the Image Library. */
+} GIF_ColorMap;
+    
+/* An indexed RGB triplet. */
+typedef struct _GIF_IRGB {
+    PRUint8 index;
+    PRUint8 red, green, blue;
+} GIF_IRGB;
+
+/* A GIF decoder's state */
+typedef struct gif_struct {
+    void* clientptr;
+    /* Callbacks for this decoder instance*/
+    int (PR_CALLBACK *GIFCallback_NewPixmap)();
+    int (PR_CALLBACK *GIFCallback_BeginGIF)(
+      void*    aClientData,
+      PRUint32 aLogicalScreenWidth, 
+      PRUint32 aLogicalScreenHeight,
+      PRUint8  aLogicalScreenBackgroundRGBIndex);
+      
+    int (PR_CALLBACK* GIFCallback_EndGIF)(
+      void*    aClientData,
+      int      aAnimationLoopCount);
+      
+    int (PR_CALLBACK* GIFCallback_BeginImageFrame)(
+      void*    aClientData,
+      PRUint32 aFrameNumber,   /* Frame number, 1-n */
+      PRUint32 aFrameXOffset,  /* X offset in logical screen */
+      PRUint32 aFrameYOffset,  /* Y offset in logical screen */
+      PRUint32 aFrameWidth,    
+      PRUint32 aFrameHeight,   
+      GIF_RGB* aTransparencyChromaKey);
+    int (PR_CALLBACK* GIFCallback_EndImageFrame)(
+      void* aClientData,
+      PRUint32 aFrameNumber,
+      PRUint32 aDelayTimeout);
+    int (PR_CALLBACK* GIFCallback_SetupColorspaceConverter)();
+    int (PR_CALLBACK* GIFCallback_ResetPalette)(); 
+    int (PR_CALLBACK* GIFCallback_InitTransparentPixel)();
+    int (PR_CALLBACK* GIFCallback_DestroyTransparentPixel)();
+    int (PR_CALLBACK* GIFCallback_HaveDecodedRow)(
+      void* aClientData,
+      PRUint8* aRowBufPtr,   /* Pointer to single scanline temporary buffer */
+      PRUint8* aRGBrowBufPtr,/* Pointer to temporary storage for dithering/mapping */
+      int aXOffset,          /* With respect to GIF logical screen origin */
+      int aLength,           /* Length of the row? */
+      int aRow,              /* Row number? */
+      int aDuplicateCount,   /* Number of times to duplicate the row? */
+      PRUint8 aDrawMode,     /* il_draw_mode */
+      int aInterlacePass);
+    int (PR_CALLBACK *GIFCallback_HaveImageAll)(
+      void* aClientData);
+        
+    /* Parsing state machine */
+    gstate state;               /* Curent decoder master state */
+    PRUint8 *hold;                /* Accumulation buffer */
+    int32 hold_size;            /* Capacity, in bytes, of accumulation buffer */
+    PRUint8 *gather_head;         /* Next byte to read in accumulation buffer */
+    int32 gather_request_size;  /* Number of bytes to accumulate */
+    int32 gathered;             /* bytes accumulated so far*/
+    gstate post_gather_state;   /* State after requested bytes accumulated */
+    int32 requested_buffer_fullness; /* For netscape application extension */
+
+    /* LZW decoder state machine */
+    PRUint8 *stack;               /* Base of decoder stack */
+    PRUint8 *stackp;              /* Current stack pointer */
+    PRUint16 *prefix;
+    PRUint8 *suffix;
+    int datasize;
+    int codesize;
+    int codemask;
+    int clear_code;             /* Codeword used to trigger dictionary reset */
+    int avail;                  /* Index of next available slot in dictionary */
+    int oldcode;
+    PRUint8 firstchar;
+    int count;                  /* Remaining # bytes in sub-block */
+    int bits;                   /* Number of unread bits in "datum" */
+    int32 datum;                /* 32-bit input buffer */
+
+    /* Output state machine */
+    int ipass;                  /* Interlace pass; Ranges 1-4 if interlaced. */
+    PRUintn rows_remaining;        /* Rows remaining to be output */
+    PRUintn irow;                  /* Current output row, starting at zero */
+    PRUint8 *rgbrow;              /* Temporary storage for dithering/mapping */
+    PRUint8 *rowbuf;              /* Single scanline temporary buffer */
+    PRUint8 *rowend;              /* Pointer to end of rowbuf */
+    PRUint8 *rowp;                /* Current output pointer */
+
+    /* Parameters for image frame currently being decoded*/
+    PRUintn x_offset, y_offset;    /* With respect to "screen" origin */
+    PRUintn height, width;
+    PRUintn last_x_offset, last_y_offset; /* With respect to "screen" origin */
+    PRUintn last_height, last_width;
+    int interlaced;             /* TRUE, if scanlines arrive interlaced order */
+    int tpixel;                 /* Index of transparent pixel */
+    GIF_IRGB* transparent_pixel;
+    int is_transparent;         /* TRUE, if tpixel is valid */
+    int control_extension;      /* TRUE, if image control extension present */
+    int is_local_colormap_defined;
+    gdispose disposal_method;   /* Restore to background, leave in place, etc.*/
+    gdispose last_disposal_method;
+    GIF_RGB *local_colormap;     /* Per-image colormap */
+    int local_colormap_size;    /* Size of local colormap array. */
+    PRUint32 delay_time;        /* Display time, in milliseconds,
+                                   for this image in a multi-image GIF */
+
+    /* Global (multi-image) state */
+    int screen_bgcolor;         /* Logical screen background color */
+    int version;                /* Either 89 for GIF89 or 87 for GIF87 */
+    PRUintn screen_width;       /* Logical screen width & height */
+    PRUintn screen_height;
+    GIF_RGB *global_colormap;    /* Default colormap if local not supplied  */
+    int global_colormap_size;   /* Size of global colormap array. */
+    int images_decoded;         /* Counts images for multi-part GIFs */
+    int destroy_pending;        /* Stream has ended */
+    int progressive_display;    /* If TRUE, do Haeberli interlace hack */
+    int loop_count;             /* Netscape specific extension block to control
+                                   the number of animation loops a GIF renders. */
+} gif_struct;
+
+
+/* Create a new gif_struct */
+extern PRBool gif_create(gif_struct **gs);
+
+/* These are the APIs that the client calls to intialize,
+push data to, and shut down the GIF decoder. */
+PRBool GIFInit(
+  gif_struct* gs,
+
+  void* aClientData,
+  
+  int (*PR_CALLBACK GIFCallback_NewPixmap)(),
+  
+  int (*PR_CALLBACK GIFCallback_BeginGIF)(
+    void* aClientData,
+    PRUint32 aLogicalScreenWidth, 
+    PRUint32 aLogicalScreenHeight,
+    PRUint8  aBackgroundRGBIndex),
+    
+  int (*PR_CALLBACK GIFCallback_EndGIF)(
+    void*    aClientData,
+    int      aAnimationLoopCount),
+  
+  int (*PR_CALLBACK GIFCallback_BeginImageFrame)(
+    void*    aClientData,
+    PRUint32 aFrameNumber,   /* Frame number, 1-n */
+    PRUint32 aFrameXOffset,  /* X offset in logical screen */
+    PRUint32 aFrameYOffset,  /* Y offset in logical screen */
+    PRUint32 aFrameWidth,    
+    PRUint32 aFrameHeight,   
+    GIF_RGB* aTransparencyChromaKey),
+  
+  int (*PR_CALLBACK GIFCallback_EndImageFrame)(
+    void* aClientData,
+    PRUint32 aFrameNumber,
+    PRUint32 aDelayTimeout),
+  
+  int (*PR_CALLBACK GIFCallback_SetupColorspaceConverter)(),
+  
+  int (*PR_CALLBACK GIFCallback_ResetPalette)(),
+  
+  int (*PR_CALLBACK GIFCallback_InitTransparentPixel)(),
+  
+  int (*PR_CALLBACK GIFCallback_DestroyTransparentPixel)(),
+  
+  int (*PR_CALLBACK GIFCallback_HaveDecodedRow)(
+    void* aClientData,
+    PRUint8* aRowBufPtr,   /* Pointer to single scanline temporary buffer */
+    PRUint8* aRGBrowBufPtr,/* Pointer to temporary storage for dithering/mapping */
+    int aXOffset,          /* With respect to GIF logical screen origin */
+    int aLength,           /* Length of the row? */
+    int aRow,              /* Row number? */
+    int aDuplicateCount,   /* Number of times to duplicate the row? */
+    PRUint8 aDrawMode,     /* il_draw_mode */
+    int aInterlacePass),
+    
+  int (*PR_CALLBACK GIFCallback_HaveImageAll)(
+    void* aClientData)
+  );
+
+extern void gif_destroy(gif_struct* aGIFStruct);
+
+int gif_write(gif_struct* aGIFStruct, const PRUint8 * buf, PRUint32 numbytes);
+
+PRUint8 gif_write_ready(gif_struct* aGIFStruct);
+
+extern void gif_complete(gif_struct** aGIFStruct);
+extern void gif_delay_time_callback(/* void *closure */);
+
+
+/* Callback functions that the client must implement and pass in 
+pointers for during the GIFInit call. These will be called back
+when the decoder has a decoded rows, frame size information, etc.*/
+
+/* GIFCallback_LogicalScreenSize is called only once to notify the client
+of the logical screen size, which will be the size of the total image. */
+typedef int (*PR_CALLBACK BEGINGIF_CALLBACK)(
+  void*    aClientData,
+  PRUint32 aLogicalScreenWidth, 
+  PRUint32 aLogicalScreenHeight,
+  PRUint8  aLogicalScreenBackgroundRGBIndex);
+                            
+typedef int (PR_CALLBACK *GIFCallback_EndGIF)(
+  void*    aClientData,
+  int      aAnimationLoopCount);
+
+/* GIFCallback_BeginImageFrame is called at the beginning of each frame of
+a GIF.*/
+typedef int (PR_CALLBACK *GIFCallback_BeginImageFrame)(
+  void*    aClientData,
+  PRUint32 aFrameNumber,   /* Frame number, 1-n */
+  PRUint32 aFrameXOffset,  /* X offset in logical screen */
+  PRUint32 aFraqeYOffset,  /* Y offset in logical screen */
+  PRUint32 aFrameWidth,    
+  PRUint32 aFrameHeight); 
+
+extern int GIFCallback_EndImageFrame(
+  void*    aClientData,
+  PRUint32 aFrameNumber,
+  PRUint32 aDelayTimeout); /* Time in milliseconds this frame should be displayed before the next frame.
+                              This information appears in a sub control block, so we don't
+                              transmit it back to the client until we're done with the frame. */
+
+/*
+extern int GIFCallback_SetupColorspaceConverter();
+extern int GIFCallback_ResetPalette(); 
+extern int GIFCallback_InitTransparentPixel();
+extern int GIFCallback_DestroyTransparentPixel();
+*/
+extern int GIFCallback_HaveDecodedRow();
+extern int GIFCallback_HaveImageAll();
+
+#endif
+

mozilla/modules/libpr0n/decoders/gif/Makefile.in

@@ -0,0 +1,42 @@
+#
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#
+
+DEPTH		= ../../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+MODULE		= imggif
+LIBRARY_NAME	= imggif
+IS_COMPONENT	= 1
+
+REQUIRES	= xpcom necko layout gfx2 imglib2
+
+CPPSRCS		= GIF2.cpp nsGIFDecoder2.cpp nsGIFModule.cpp
+
+EXTRA_DSO_LDOPTS = $(GIF_LIBS) $(ZLIB_LIBS) \
+		$(MOZ_COMPONENT_LIBS) \
+		$(NULL)
+
+include $(topsrcdir)/config/rules.mk
+

mozilla/modules/libpr0n/decoders/gif/makefile.win

@@ -0,0 +1,52 @@
+#!nmake
+# 
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#    Stuart Parmenter <pavlov@netscape.com>
+#
+
+DEPTH=..\..\..\..
+include <$(DEPTH)/config/config.mak>
+
+MODULE			= imggif
+LIBRARY_NAME	= imggif
+DLL			= $(OBJDIR)\$(LIBRARY_NAME).dll
+MAKE_OBJ_TYPE	= DLL
+
+OBJS	= \
+		.\$(OBJDIR)\nsGIFDecoder2.obj \
+		.\$(OBJDIR)\GIF2.obj \
+		.\$(OBJDIR)\nsGIFModule.obj \
+		$(NULL)
+
+LLIBS=\
+	$(LIBNSPR) \
+	$(DIST)\lib\xpcom.lib \
+	$(DIST)\lib\gkgfxwin.lib \
+	$(NULL)
+
+include <$(DEPTH)\config\rules.mak>
+
+install:: $(DLL)
+	$(MAKE_INSTALL) .\$(OBJDIR)\$(LIBRARY_NAME).dll $(DIST)\bin\components
+	$(MAKE_INSTALL) .\$(OBJDIR)\$(LIBRARY_NAME).lib $(DIST)\lib
+
+clobber::
+	rm -f $(DIST)\bin\components\$(LIBRARY_NAME).dll
+	rm -f $(DIST)\lib\$(LIBRARY_NAME).lib

mozilla/modules/libpr0n/decoders/gif/nsGIFDecoder2.cpp

@@ -0,0 +1,506 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s): 
+ *  Chris Saari <saari@netscape.com>
+ */
+
+#include "nsGIFDecoder2.h"
+#include "nsIInputStream.h"
+#include "nsIComponentManager.h"
+#include "nsIImage.h"
+#include "nsMemory.h"
+
+#include "imgIContainerObserver.h"
+
+#include "nsRect.h"
+
+//////////////////////////////////////////////////////////////////////
+// GIF Decoder Implementation
+// This is an adaptor between GIF2 and imgIDecoder
+
+NS_IMPL_ISUPPORTS2(nsGIFDecoder2, imgIDecoder, nsIOutputStream);
+
+nsGIFDecoder2::nsGIFDecoder2()
+{
+  NS_INIT_ISUPPORTS();
+  mImageFrame = nsnull;
+  
+  mGIFStruct = nsnull;
+
+  mAlphaLine = nsnull;
+}
+
+nsGIFDecoder2::~nsGIFDecoder2(void)
+{
+  if (mAlphaLine)
+    nsMemory::Free(mAlphaLine);
+
+  if (mGIFStruct) {
+    gif_destroy(mGIFStruct);
+    mGIFStruct = nsnull;
+  }
+}
+
+//******************************************************************************
+/** imgIDecoder methods **/
+//******************************************************************************
+
+//******************************************************************************
+/* void init (in imgIRequest aRequest); */
+NS_IMETHODIMP nsGIFDecoder2::Init(imgIRequest *aRequest)
+{
+  mImageRequest = aRequest;
+  mObserver = do_QueryInterface(aRequest);  // we're holding 2 strong refs to the request.
+
+  aRequest->GetImage(getter_AddRefs(mImageContainer));
+
+  /* do gif init stuff */
+  /* Always decode to 24 bit pixdepth */
+  
+  PRBool created = gif_create(&mGIFStruct);
+
+  NS_ASSERTION(created, "gif_create failed");
+
+  // Call GIF decoder init routine
+  GIFInit(
+    mGIFStruct,
+    this,
+    NewPixmap,
+    BeginGIF,
+    EndGIF,
+    BeginImageFrame,
+    EndImageFrame,
+    SetupColorspaceConverter,
+    ResetPalette,
+    InitTransparentPixel,
+    DestroyTransparentPixel,
+    HaveDecodedRow,
+    HaveImageAll);
+
+  return NS_OK;
+}
+
+//******************************************************************************
+/* readonly attribute imgIRequest request; */
+NS_IMETHODIMP nsGIFDecoder2::GetRequest(imgIRequest * *aRequest)
+{
+  *aRequest = mImageRequest;
+  NS_IF_ADDREF(*aRequest);
+      
+  return NS_OK;
+}
+
+
+//******************************************************************************
+/** nsIOutputStream methods **/
+//******************************************************************************
+
+//******************************************************************************
+/* void close (); */
+NS_IMETHODIMP nsGIFDecoder2::Close()
+{
+  if (mGIFStruct) {
+    gif_destroy(mGIFStruct);
+    mGIFStruct = nsnull;
+  }
+
+  return NS_OK;
+}
+
+//******************************************************************************
+/* void flush (); */
+NS_IMETHODIMP nsGIFDecoder2::Flush()
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//******************************************************************************
+/* unsigned long write (in string buf, in unsigned long count); */
+NS_IMETHODIMP nsGIFDecoder2::Write(const char *buf, PRUint32 count, PRUint32 *_retval)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//******************************************************************************
+/* static callback from nsIInputStream::ReadSegments */
+static NS_METHOD ReadDataOut(nsIInputStream* in,
+                             void* closure,
+                             const char* fromRawSegment,
+                             PRUint32 toOffset,
+                             PRUint32 count,
+                             PRUint32 *writeCount)
+{
+  nsGIFDecoder2 *decoder = NS_STATIC_CAST(nsGIFDecoder2*, closure);
+  *writeCount = decoder->ProcessData((unsigned char*)fromRawSegment, count);
+  return NS_OK;
+}
+
+//******************************************************************************
+PRUint32 nsGIFDecoder2::ProcessData(unsigned char *data, PRUint32 count)
+{
+  // Push the data to the GIF decoder
+  
+  // First we ask if the gif decoder is ready for more data, and if so, push it.
+  // In the new decoder, we should always be able to process more data since
+  // we don't wait to decode each frame in an animation now.
+  if(gif_write_ready(mGIFStruct)) {
+    gif_write(mGIFStruct, data, count);
+  }
+    
+
+  return count; // we always consume all the data
+}
+
+//******************************************************************************
+/* unsigned long writeFrom (in nsIInputStream inStr, in unsigned long count); */
+NS_IMETHODIMP nsGIFDecoder2::WriteFrom(nsIInputStream *inStr, PRUint32 count, PRUint32 *_retval)
+{
+  inStr->ReadSegments(
+    ReadDataOut, // Callback
+    this,     
+    count, 
+    _retval);
+
+    // if error
+    //mRequest->Cancel(NS_BINDING_ABORTED); // XXX is this the correct error ?
+  return NS_OK;
+}
+
+//******************************************************************************
+/* [noscript] unsigned long writeSegments (in nsReadSegmentFun reader, in voidPtr closure, in unsigned long count); */
+NS_IMETHODIMP nsGIFDecoder2::WriteSegments(nsReadSegmentFun reader, void * closure, PRUint32 count, PRUint32 *_retval)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//******************************************************************************
+/* attribute boolean nonBlocking; */
+NS_IMETHODIMP nsGIFDecoder2::GetNonBlocking(PRBool *aNonBlocking)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+//******************************************************************************
+NS_IMETHODIMP nsGIFDecoder2::SetNonBlocking(PRBool aNonBlocking)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//******************************************************************************
+/* attribute nsIOutputStreamObserver observer; */
+NS_IMETHODIMP nsGIFDecoder2::GetObserver(nsIOutputStreamObserver * *aObserver)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//******************************************************************************
+NS_IMETHODIMP nsGIFDecoder2::SetObserver(nsIOutputStreamObserver * aObserver)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+
+
+//******************************************************************************
+// GIF decoder callback methods. Part of pulic API for GIF2
+//******************************************************************************
+
+//******************************************************************************
+int BeginGIF(
+  void*    aClientData,
+  PRUint32 aLogicalScreenWidth, 
+  PRUint32 aLogicalScreenHeight,
+  PRUint8  aBackgroundRGBIndex)
+{
+  // copy GIF info into imagelib structs
+  nsGIFDecoder2 *decoder = NS_STATIC_CAST(nsGIFDecoder2*, aClientData);
+
+  if (decoder->mObserver)
+    decoder->mObserver->OnStartDecode(nsnull, nsnull);
+
+  decoder->mImageContainer->Init(aLogicalScreenWidth, aLogicalScreenHeight, decoder->mObserver);
+
+  if (decoder->mObserver)
+    decoder->mObserver->OnStartContainer(nsnull, nsnull, decoder->mImageContainer);
+
+  return 0;
+}
+
+//******************************************************************************
+int EndGIF(
+    void*    aClientData,
+    int      aAnimationLoopCount)
+{
+  nsGIFDecoder2 *decoder = NS_STATIC_CAST(nsGIFDecoder2*, aClientData);
+  if (decoder->mObserver) {
+    decoder->mObserver->OnStopContainer(nsnull, nsnull, decoder->mImageContainer);
+    decoder->mObserver->OnStopDecode(nsnull, nsnull, NS_OK, nsnull);
+  }
+  
+  decoder->mImageContainer->SetLoopCount(aAnimationLoopCount);
+  decoder->mImageContainer->DecodingComplete();
+  return 0;
+}
+
+//******************************************************************************
+int BeginImageFrame(
+  void*    aClientData,
+  PRUint32 aFrameNumber,   /* Frame number, 1-n */
+  PRUint32 aFrameXOffset,  /* X offset in logical screen */
+  PRUint32 aFrameYOffset,  /* Y offset in logical screen */
+  PRUint32 aFrameWidth,    
+  PRUint32 aFrameHeight,   
+  GIF_RGB* aTransparencyChromaKey) /* don't have this info yet */
+{
+  nsGIFDecoder2* decoder = NS_STATIC_CAST(nsGIFDecoder2*, aClientData);
+  
+  decoder->mImageFrame = nsnull; // clear out our current frame reference
+  decoder->mGIFStruct->x_offset = aFrameXOffset;
+  decoder->mGIFStruct->y_offset = aFrameYOffset;
+  decoder->mGIFStruct->width = aFrameWidth;
+  decoder->mGIFStruct->height = aFrameHeight;
+
+  return 0;
+}
+
+//******************************************************************************
+int EndImageFrame(
+  void*    aClientData, 
+  PRUint32 aFrameNumber,
+  PRUint32 aDelayTimeout)  /* Time this frame should be displayed before the next frame 
+                              we can't have this in the image frame init because it doesn't
+                              show up in the GIF frame header, it shows up in a sub control
+                              block.*/
+{
+  nsGIFDecoder2* decoder = NS_STATIC_CAST(nsGIFDecoder2*, aClientData);
+  
+  // We actually have the timeout information before we get the lzw encoded image
+  // data, at least according to the spec, but we delay in setting the timeout for
+  // the image until here to help ensure that we have the whole image frame decoded before
+  // we go off and try to display another frame.
+
+// XXXXXXXX
+  // decoder->mImageFrame->SetTimeout(aDelayTimeout);
+  decoder->mImageContainer->EndFrameDecode(aFrameNumber, aDelayTimeout);
+
+  if (decoder->mObserver)
+    decoder->mObserver->OnStopFrame(nsnull, nsnull, decoder->mImageFrame);
+
+  decoder->mImageFrame = nsnull;
+  return 0;
+}
+  
+
+
+//******************************************************************************
+// GIF decoder callback
+int HaveImageAll(
+  void* aClientData)
+{
+  return 0;
+}
+
+//******************************************************************************
+// GIF decoder callback notification that it has decoded a row
+int HaveDecodedRow(
+  void* aClientData,
+  PRUint8* aRowBufPtr,   // Pointer to single scanline temporary buffer
+  PRUint8* aRGBrowBufPtr,// Pointer to temporary storage for dithering/mapping
+  int aXOffset,          // With respect to GIF logical screen origin
+  int aLength,           // Length of the row?
+  int aRowNumber,        // Row number?
+  int aDuplicateCount,   // Number of times to duplicate the row?
+  PRUint8 aDrawMode,     // il_draw_mode
+  int aInterlacePass)    // interlace pass (1-4)
+{
+  nsGIFDecoder2* decoder = NS_STATIC_CAST(nsGIFDecoder2*, aClientData);
+  PRUint32 bpr, abpr;
+  // We have to delay allocation of the image frame until now because
+  // we won't have control block info (transparency) until now. The conrol
+  // block of a GIF stream shows up after the image header since transparency
+  // is added in GIF89a and control blocks are how the extensions are done.
+  // How annoying.
+  if(! decoder->mImageFrame) {
+    gfx_format format = gfxIFormats::RGB;
+    if (decoder->mGIFStruct->is_transparent)
+      format = gfxIFormats::RGB_A1;
+
+#ifdef XP_PC
+    // XXX this works...
+    format += 1; // RGB to BGR
+#endif
+
+    // initalize the frame and append it to the container
+    decoder->mImageFrame = do_CreateInstance("@mozilla.org/gfx/image/frame;2");
+    decoder->mImageFrame->Init(
+      decoder->mGIFStruct->x_offset, decoder->mGIFStruct->y_offset, 
+      decoder->mGIFStruct->width, decoder->mGIFStruct->height, format);
+      
+    decoder->mImageContainer->AppendFrame(decoder->mImageFrame);
+
+    if (decoder->mObserver)
+      decoder->mObserver->OnStartFrame(nsnull, nsnull, decoder->mImageFrame);
+
+    decoder->mImageFrame->GetImageBytesPerRow(&bpr);
+    decoder->mImageFrame->GetAlphaBytesPerRow(&abpr);
+
+    if (format == gfxIFormats::RGB_A1 || format == gfxIFormats::BGR_A1) {
+      if (decoder->mAlphaLine)
+        nsMemory::Free(decoder->mAlphaLine);
+      decoder->mAlphaLine = (PRUint8 *)nsMemory::Alloc(abpr);
+    }
+  } else {
+    decoder->mImageFrame->GetImageBytesPerRow(&bpr);
+    decoder->mImageFrame->GetAlphaBytesPerRow(&abpr);
+  }
+  
+  if (aRowBufPtr) {
+    nscoord width;
+
+    decoder->mImageFrame->GetWidth(&width);
+    PRUint32 iwidth = width;
+
+    gfx_format format;
+    decoder->mImageFrame->GetFormat(&format);
+
+    // XXX map the data into colors
+    int cmapsize;
+    GIF_RGB* cmap;
+    if(decoder->mGIFStruct->local_colormap) {
+      cmapsize = decoder->mGIFStruct->local_colormap_size;
+      cmap = decoder->mGIFStruct->local_colormap;
+    } else {
+      cmapsize = decoder->mGIFStruct->global_colormap_size;
+      cmap = decoder->mGIFStruct->global_colormap;
+    }
+
+    PRUint8* rgbRowIndex = aRGBrowBufPtr;
+    PRUint8* rowBufIndex = aRowBufPtr;
+        
+    switch (format) {
+    case gfxIFormats::RGB:
+      {
+        while(rowBufIndex != decoder->mGIFStruct->rowend) {
+#ifdef XP_MAC
+          *rgbRowIndex++ = 0; // Mac is always 32bits per pixel, this is pad
+#endif
+          *rgbRowIndex++ = cmap[PRUint8(*rowBufIndex)].red;
+          *rgbRowIndex++ = cmap[PRUint8(*rowBufIndex)].green;
+          *rgbRowIndex++ = cmap[PRUint8(*rowBufIndex)].blue;
+          ++rowBufIndex;
+        }
+
+        decoder->mImageFrame->SetImageData((PRUint8*)aRGBrowBufPtr, bpr, aRowNumber*bpr);
+      }
+      break;
+    case gfxIFormats::BGR:
+      {
+        while(rowBufIndex != decoder->mGIFStruct->rowend) {
+          *rgbRowIndex++ = cmap[PRUint8(*rowBufIndex)].blue;
+          *rgbRowIndex++ = cmap[PRUint8(*rowBufIndex)].green;
+          *rgbRowIndex++ = cmap[PRUint8(*rowBufIndex)].red;
+          ++rowBufIndex;
+        }
+
+        decoder->mImageFrame->SetImageData((PRUint8*)aRGBrowBufPtr, bpr, aRowNumber*bpr);
+      }
+      break;
+    case gfxIFormats::RGB_A1:
+    case gfxIFormats::BGR_A1:
+      {
+        memset(aRGBrowBufPtr, 0, bpr);
+        memset(decoder->mAlphaLine, 0, abpr);
+        PRUint32 iwidth = (PRUint32)width;
+        for (PRUint32 x=0; x<iwidth; x++) {
+          if (*rowBufIndex != decoder->mGIFStruct->tpixel) {
+#ifdef XP_PC
+            *rgbRowIndex++ = cmap[PRUint8(*rowBufIndex)].blue;
+            *rgbRowIndex++ = cmap[PRUint8(*rowBufIndex)].green;
+            *rgbRowIndex++ = cmap[PRUint8(*rowBufIndex)].red;
+#else
+#ifdef XP_MAC
+          *rgbRowIndex++ = 0; // Mac is always 32bits per pixel, this is pad
+#endif
+            *rgbRowIndex++ = cmap[PRUint8(*rowBufIndex)].red;
+            *rgbRowIndex++ = cmap[PRUint8(*rowBufIndex)].green;
+            *rgbRowIndex++ = cmap[PRUint8(*rowBufIndex)].blue;
+#endif
+            decoder->mAlphaLine[x>>3] |= 1<<(7-x&0x7);
+          } else {
+#ifdef XP_MAC
+            rgbRowIndex+=4;
+#else
+            rgbRowIndex+=3;
+#endif
+          }
+
+          ++rowBufIndex;
+        }
+        decoder->mImageFrame->SetImageData((PRUint8*)aRGBrowBufPtr, bpr, aRowNumber*bpr);
+        decoder->mImageFrame->SetAlphaData(decoder->mAlphaLine, abpr, aRowNumber*abpr);
+      }
+      break;
+    default:
+      break;
+
+    }
+
+    nsRect r(0, aRowNumber, width, 1);
+
+    decoder->mObserver->OnDataAvailable(nsnull, nsnull, decoder->mImageFrame, &r);
+  }
+
+  return 0;
+}
+
+//******************************************************************************
+int ResetPalette()
+{
+  return 0;
+}
+
+//******************************************************************************
+int SetupColorspaceConverter()
+{
+  return 0;
+}
+
+//******************************************************************************
+int EndImageFrame()
+{
+  return 0;
+}
+
+//******************************************************************************
+int NewPixmap()
+{
+  return 0;
+}
+
+//******************************************************************************
+int InitTransparentPixel()
+{
+  return 0;
+}
+
+//******************************************************************************
+int DestroyTransparentPixel()
+{
+  return 0;
+}

mozilla/modules/libpr0n/decoders/gif/nsGIFDecoder2.h

@@ -0,0 +1,114 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s): 
+ *  Chris Saari <saari@netscape.com>
+ */
+
+#ifndef _nsGIFDecoder2_h
+#define _nsGIFDecoder2_h
+
+#include "nsCOMPtr.h"
+#include "imgIDecoder.h"
+#include "imgIContainer.h"
+#include "imgIDecoderObserver.h"
+#include "gfxIImageFrame.h"
+#include "imgIRequest.h"
+
+#include "GIF2.h"
+
+#define NS_GIFDECODER2_CID \
+{ /* 797bec5a-1dd2-11b2-a7f8-ca397e0179c4 */         \
+     0x797bec5a,                                     \
+     0x1dd2,                                         \
+     0x11b2,                                         \
+    {0xa7, 0xf8, 0xca, 0x39, 0x7e, 0x01, 0x79, 0xc4} \
+}
+
+//////////////////////////////////////////////////////////////////////
+// nsGIFDecoder2 Definition
+
+class nsGIFDecoder2 : public imgIDecoder   
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_IMGIDECODER
+  NS_DECL_NSIOUTPUTSTREAM
+
+  nsGIFDecoder2();
+  virtual ~nsGIFDecoder2();
+
+  static NS_METHOD Create(nsISupports *aOuter, REFNSIID aIID, void **aResult);
+  
+  NS_METHOD ProcessData(unsigned char *data, PRUint32 count);
+  
+  nsCOMPtr<imgIContainer> mImageContainer;
+  nsCOMPtr<gfxIImageFrame> mImageFrame;
+  nsCOMPtr<imgIRequest> mImageRequest;
+  nsCOMPtr<imgIDecoderObserver> mObserver; // this is just qi'd from mRequest for speed
+  
+  gif_struct *mGIFStruct;
+  
+  PRUint8 *mAlphaLine;
+};
+
+// static callbacks for the GIF decoder
+static int PR_CALLBACK BeginGIF(
+  void*    aClientData,
+  PRUint32 aLogicalScreenWidth, 
+  PRUint32 aLogicalScreenHeight,
+  PRUint8  aBackgroundRGBIndex);
+  
+static int PR_CALLBACK HaveDecodedRow(
+  void* aClientData,
+  PRUint8* aRowBufPtr,   // Pointer to single scanline temporary buffer
+  PRUint8* aRGBrowBufPtr,// Pointer to temporary storage for dithering/mapping
+  int aXOffset,          // With respect to GIF logical screen origin
+  int aLength,           // Length of the row?
+  int aRow,              // Row number?
+  int aDuplicateCount,   // Number of times to duplicate the row?
+  PRUint8 aDrawMode,     // il_draw_mode
+  int aInterlacePass);
+    
+static int PR_CALLBACK NewPixmap();
+
+static int PR_CALLBACK EndGIF(
+  void*    aClientData,
+  int      aAnimationLoopCount);
+  
+static int PR_CALLBACK BeginImageFrame(
+  void*    aClientData,
+  PRUint32 aFrameNumber,   /* Frame number, 1-n */
+  PRUint32 aFrameXOffset,  /* X offset in logical screen */
+  PRUint32 aFrameYOffset,  /* Y offset in logical screen */
+  PRUint32 aFrameWidth,    
+  PRUint32 aFrameHeight,   
+  GIF_RGB* aTransparencyChromaKey);
+static int PR_CALLBACK EndImageFrame(
+  void*    aClientData, 
+  PRUint32 aFrameNumber,
+  PRUint32 aDelayTimeout);
+static int PR_CALLBACK SetupColorspaceConverter();
+static int PR_CALLBACK ResetPalette();
+static int PR_CALLBACK InitTransparentPixel();
+static int PR_CALLBACK DestroyTransparentPixel();
+
+static int PR_CALLBACK HaveImageAll(
+  void* aClientData);
+#endif

mozilla/modules/libpr0n/decoders/gif/nsGIFModule.cpp

@@ -0,0 +1,41 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ *   Chris Saari <saari@netscape.com>
+ */
+
+#include "nsGIFDecoder2.h"
+#include "nsIComponentManager.h"
+#include "nsIGenericFactory.h"
+#include "nsISupports.h"
+#include "nsCOMPtr.h"
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsGIFDecoder2)
+
+static nsModuleComponentInfo components[] =
+{
+  { "GIF Decoder",
+     NS_GIFDECODER2_CID,
+     "@mozilla.org/image/decoder;2?type=image/gif",
+     nsGIFDecoder2Constructor, },
+};
+
+NS_IMPL_NSGETMODULE("nsGIFModule2", components)
+

mozilla/modules/libpr0n/decoders/gif/win32.order

@@ -0,0 +1,18 @@
+?AddRef@nsGIFDecoder2@@UAGKXZ ; 2550
+?Release@nsGIFDecoder2@@UAGKXZ ; 2550
+?gif_write_ready@@YAEPAUgif_struct@@@Z ; 1624
+?ProcessData@nsGIFDecoder2@@QAGIPAEI@Z ; 1624
+?gif_write@@YAHPAUgif_struct@@PBEI@Z ; 1624
+?WriteFrom@nsGIFDecoder2@@UAGIPAVnsIInputStream@@IPAI@Z ; 1309
+?Close@nsGIFDecoder2@@UAGIXZ ; 1275
+??_GnsGIFDecoder2@@UAEPAXI@Z ; 1275
+??0nsGIFDecoder2@@QAE@XZ ; 1275
+??1nsGIFDecoder2@@UAE@XZ ; 1275
+?QueryInterface@nsGIFDecoder2@@UAGIABUnsID@@PAPAX@Z ; 1275
+?GIFInit@@YAHPAUgif_struct@@PAXP6AHXZP6AH1IIE@ZP6AH1H@ZP6AH1IIIIIPAU_GIF_RGB@@@ZP6AH1II@Z2222P6AH1PAE8HHHHEH@ZP6AH1@Z@Z ; 1275
+?Init@nsGIFDecoder2@@UAGIPAVimgIRequest@@@Z ; 1275
+?Flush@nsGIFDecoder2@@UAGIXZ ; 1275
+?gif_destroy@@YAXPAUgif_struct@@@Z ; 1275
+?gif_create@@YAHPAPAUgif_struct@@@Z ; 1275
+?il_BACat@@YAPADPAPADIPBDI@Z ; 698
+_NSGetModule ; 1

mozilla/modules/libpr0n/decoders/icon/mac/nsIconChannel.cpp

@@ -0,0 +1,378 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Brian Ryner.
+ * Portions created by Brian Ryner are Copyright (C) 2000 Brian Ryner.
+ * All Rights Reserved.
+ *
+ * Contributor(s): 
+ *   Scott MacGregor <mscott@netscape.com>
+ */
+
+
+#include "nsIconChannel.h"
+#include "nsIServiceManager.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsXPIDLString.h"
+#include "nsMimeTypes.h"
+#include "nsMemory.h"
+#include "nsIStringStream.h"
+#include "nsIURL.h"
+#include "nsNetUtil.h"
+#include "nsIMimeService.h"
+#include "nsCExternalHandlerService.h"
+#include "plstr.h"
+
+#include <Files.h>
+#include <QuickDraw.h>
+
+// nsIconChannel methods
+nsIconChannel::nsIconChannel()
+{
+  NS_INIT_REFCNT();
+  mStatus = NS_OK;
+}
+
+nsIconChannel::~nsIconChannel() 
+{}
+
+NS_IMPL_THREADSAFE_ISUPPORTS2(nsIconChannel, 
+                              nsIChannel, 
+                              nsIRequest)
+
+nsresult nsIconChannel::Init(nsIURI* uri)
+{
+  nsresult rv;
+  NS_ASSERTION(uri, "no uri");
+  mUrl = uri;
+  return NS_OK;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// nsIRequest methods:
+
+NS_IMETHODIMP nsIconChannel::GetName(PRUnichar* *result)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconChannel::IsPending(PRBool *result)
+{
+  NS_NOTREACHED("nsIconChannel::IsPending");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconChannel::GetStatus(nsresult *status)
+{
+  *status = mStatus;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::Cancel(nsresult status)
+{
+  NS_ASSERTION(NS_FAILED(status), "shouldn't cancel with a success code");
+  nsresult rv = NS_ERROR_FAILURE;
+
+  mStatus = status;
+  return rv;
+}
+
+NS_IMETHODIMP nsIconChannel::Suspend(void)
+{
+  NS_NOTREACHED("nsIconChannel::Suspend");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconChannel::Resume(void)
+{
+  NS_NOTREACHED("nsIconChannel::Resume");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// nsIChannel methods:
+
+NS_IMETHODIMP nsIconChannel::GetOriginalURI(nsIURI* *aURI)
+{
+  *aURI = mOriginalURI ? mOriginalURI : mUrl;
+  NS_ADDREF(*aURI);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetOriginalURI(nsIURI* aURI)
+{
+  mOriginalURI = aURI;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::GetURI(nsIURI* *aURI)
+{
+  *aURI = mUrl;
+  NS_IF_ADDREF(*aURI);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetURI(nsIURI* aURI)
+{
+  mUrl = aURI;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::Open(nsIInputStream **_retval)
+{
+  return NS_ERROR_FAILURE;
+}
+
+
+NS_IMETHODIMP nsIconChannel::AsyncOpen(nsIStreamListener *aListener, nsISupports *ctxt)
+{
+  // get the file name from the url
+  nsXPIDLCString fileName; // will contain a dummy file we'll use to figure out the type of icon desired.
+  nsXPIDLCString filePath; // will contain an optional parameter for small vs. large icon. default is small
+  mUrl->GetHost(getter_Copies(fileName));
+  nsCOMPtr<nsIURL> url (do_QueryInterface(mUrl));
+  if (url)
+    url->GetFileBaseName(getter_Copies(filePath));
+  nsresult rv = NS_OK;  
+  nsCOMPtr<nsIMIMEService> mimeService (do_GetService(NS_MIMESERVICE_CONTRACTID, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+  
+  // extract the extension out of the dummy file so we can look it up in the mime service.
+  char * chFileName = fileName.get(); // get the underlying buffer
+  char * fileExtension = PL_strrchr(chFileName, '.');
+  if (!fileExtension) return NS_ERROR_FAILURE; // no file extension to work from.
+  
+  // look the file extension up in the registry.
+  nsCOMPtr<nsIMIMEInfo> mimeInfo;
+  mimeService->GetFromExtension(fileExtension, getter_AddRefs(mimeInfo));
+  NS_ENSURE_TRUE(mimeInfo, NS_ERROR_FAILURE);
+  
+  // get the mac creator and file type for this mime object
+  PRUint32 macType;
+  PRUint32 macCreator;
+  
+  mimeInfo->GetMacType(&macType);
+  mimeInfo->GetMacCreator(&macCreator);
+  
+  // get a refernce to the desktop database  
+  DTPBRec 	pb;
+  OSErr err = noErr;
+  
+  memset(&pb, 0, sizeof(DTPBRec));
+  pb.ioCompletion = nil;
+  pb.ioVRefNum = 0; // default desktop volume
+  pb.ioNamePtr = nil;
+  err = PBDTGetPath(&pb);
+  if (err != noErr) return NS_ERROR_FAILURE;
+  
+  pb.ioFileCreator = macCreator;
+  pb.ioFileType = macType;
+  pb.ioCompletion = nil;
+  pb.ioTagInfo = 0;
+  
+  PRUint32 numPixelsInRow = 0;
+  if (filePath && !nsCRT::strcmp(filePath, "large"))
+  {
+    pb.ioDTReqCount = kLarge8BitIconSize;
+    pb.ioIconType = kLarge8BitIcon;
+    numPixelsInRow = 32;
+  }
+  else
+  {
+    pb.ioDTReqCount = kSmall8BitIconSize;
+    pb.ioIconType = kSmall8BitIcon;  
+    numPixelsInRow = 16;
+  }
+  
+  // allocate a buffer large enough to handle the icon
+  PRUint8 * bitmapData = (PRUint8 *) nsMemory::Alloc (pb.ioDTReqCount);
+  pb.ioDTBuffer = (Ptr) bitmapData;
+  
+  err = PBDTGetIcon(&pb, false);
+  if (err != noErr) return NS_ERROR_FAILURE; // unable to fetch the icon....
+  
+  nsCString iconBuffer;
+  iconBuffer.Assign((char) numPixelsInRow);
+  iconBuffer.Append((char) numPixelsInRow);
+  CTabHandle cTabHandle = GetCTable(72);
+  if (!cTabHandle) return NS_ERROR_FAILURE;
+  
+  HLock((Handle) cTabHandle);
+  CTabPtr colTable = *cTabHandle;
+  RGBColor rgbCol;
+  PRUint8 redValue, greenValue, blueValue;
+  
+  for (PRUint32 index = 0; index < pb.ioDTReqCount; index ++)
+  {
+
+  	// each byte in bitmapData needs to be converted from an 8 bit system color into 
+    // 24 bit RGB data which our special icon image decoder can understand.
+    ColorSpec colSpec =  colTable->ctTable[ bitmapData[index]];
+    rgbCol = colSpec.rgb;
+    
+    redValue = rgbCol.red & 0xff;
+    greenValue = rgbCol.green & 0xff;
+    blueValue = rgbCol.blue & 0xff;
+    
+    // for some reason the image code on the mac expects each RGB pixel value to be padded with a preceding byte.
+    // so add the padding here....
+    iconBuffer.Append((char) 0);
+    iconBuffer.Append((char) redValue);
+    iconBuffer.Append((char) greenValue);
+    iconBuffer.Append((char) blueValue);
+  }
+  
+  
+  HUnlock((Handle) cTabHandle);
+  DisposeCTable(cTabHandle);
+  nsMemory::Free(bitmapData);
+  
+  // now that the color bitmask is taken care of, we need to do the same thing again for the transparency
+  // bit mask....
+  if (filePath && !nsCRT::strcmp(filePath, "large"))
+  {
+    pb.ioDTReqCount = kLargeIconSize;
+    pb.ioIconType = kLargeIcon;
+  }
+  else
+  {
+    pb.ioDTReqCount = kSmallIconSize;
+    pb.ioIconType = kSmallIcon; 
+  }
+  
+  // allocate a buffer large enough to handle the icon
+  bitmapData = (PRUint8 *) nsMemory::Alloc (pb.ioDTReqCount);
+  pb.ioDTBuffer = (Ptr) bitmapData;
+  err = PBDTGetIcon(&pb, false);
+  PRUint32 index = pb.ioDTReqCount/2;
+  while (index < pb.ioDTReqCount)
+  {
+   iconBuffer.Append((char) bitmapData[index]);
+   iconBuffer.Append((char) bitmapData[index + 1]);
+   if (numPixelsInRow == 32)
+   {
+     iconBuffer.Append((char) bitmapData[index + 2]);
+     iconBuffer.Append((char) bitmapData[index + 3]);
+     index += 4;
+   }
+   else
+   {
+    iconBuffer.Append((char) 255); // 2 bytes of padding
+    iconBuffer.Append((char) 255);
+    index += 2;
+   }
+  }
+  
+  nsMemory::Free(bitmapData);
+  
+  // turn our nsString into a stream looking object...
+  aListener->OnStartRequest(this, ctxt);
+
+ // turn our string into a stream...
+ nsCOMPtr<nsISupports> streamSupports;
+ NS_NewByteInputStream(getter_AddRefs(streamSupports), iconBuffer.get(), iconBuffer.Length());
+
+ nsCOMPtr<nsIInputStream> inputStr (do_QueryInterface(streamSupports));
+ aListener->OnDataAvailable(this, ctxt, inputStr, 0, iconBuffer.Length());
+ aListener->OnStopRequest(this, ctxt, NS_OK, nsnull);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::GetLoadAttributes(PRUint32 *aLoadAttributes)
+{
+  *aLoadAttributes = mLoadAttributes;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetLoadAttributes(PRUint32 aLoadAttributes)
+{
+  mLoadAttributes = aLoadAttributes;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::GetContentType(char* *aContentType) 
+{
+  if (!aContentType) return NS_ERROR_NULL_POINTER;
+
+  *aContentType = nsCRT::strdup("image/icon");
+  if (!*aContentType) return NS_ERROR_OUT_OF_MEMORY;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetContentType(const char *aContentType)
+{
+  //It doesn't make sense to set the content-type on this type
+  // of channel...
+  return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsIconChannel::GetContentLength(PRInt32 *aContentLength)
+{
+  *aContentLength = mContentLength;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetContentLength(PRInt32 aContentLength)
+{
+  NS_NOTREACHED("nsIconChannel::SetContentLength");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconChannel::GetLoadGroup(nsILoadGroup* *aLoadGroup)
+{
+  *aLoadGroup = mLoadGroup;
+  NS_IF_ADDREF(*aLoadGroup);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetLoadGroup(nsILoadGroup* aLoadGroup)
+{
+  mLoadGroup = aLoadGroup;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::GetOwner(nsISupports* *aOwner)
+{
+  *aOwner = mOwner.get();
+  NS_IF_ADDREF(*aOwner);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetOwner(nsISupports* aOwner)
+{
+  mOwner = aOwner;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::GetNotificationCallbacks(nsIInterfaceRequestor* *aNotificationCallbacks)
+{
+  *aNotificationCallbacks = mCallbacks.get();
+  NS_IF_ADDREF(*aNotificationCallbacks);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetNotificationCallbacks(nsIInterfaceRequestor* aNotificationCallbacks)
+{
+  mCallbacks = aNotificationCallbacks;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::GetSecurityInfo(nsISupports * *aSecurityInfo)
+{
+  *aSecurityInfo = nsnull;
+  return NS_OK;
+}
+

mozilla/modules/libpr0n/decoders/icon/mac/nsIconChannel.h

@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Brian Ryner.
+ * Portions created by Brian Ryner are Copyright (C) 2000 Brian Ryner.
+ * All Rights Reserved.
+ *
+ * Contributor(s): 
+ *  Scott MacGregor <mscott@netscape.com>
+ */
+
+#ifndef nsIconChannel_h___
+#define nsIconChannel_h___
+
+#include "nsCOMPtr.h"
+#include "nsXPIDLString.h"
+#include "nsIChannel.h"
+#include "nsILoadGroup.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsIURI.h"
+
+class nsIconChannel : public nsIChannel
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIREQUEST
+  NS_DECL_NSICHANNEL
+
+  nsIconChannel();
+  virtual ~nsIconChannel();
+
+  nsresult Init(nsIURI* uri);
+
+protected:
+  nsCOMPtr<nsIURI> mUrl;
+  nsCOMPtr<nsIURI> mOriginalURI;
+  PRUint32         mLoadAttributes;
+  PRInt32          mContentLength;
+  nsCOMPtr<nsILoadGroup> mLoadGroup;
+  nsCOMPtr<nsIInterfaceRequestor> mCallbacks;
+  nsCOMPtr<nsISupports>  mOwner; 
+  nsresult mStatus;
+};
+
+#endif /* nsIconChannel_h___ */

mozilla/modules/libpr0n/decoders/icon/makefile.win

@@ -0,0 +1,62 @@
+#!nmake
+# 
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#   Scott MacGregor <mscott@netscape.com>
+#
+
+DEPTH=..\..\..\..
+include <$(DEPTH)/config/config.mak>
+
+DIR=win
+
+MODULE			= imgicon
+LIBRARY_NAME	= imgicon
+DLL			= $(OBJDIR)\$(LIBRARY_NAME).dll
+MAKE_OBJ_TYPE	= DLL
+
+OBJS	= \
+		.\$(OBJDIR)\nsIconDecoder.obj \
+		.\$(OBJDIR)\nsIconModule.obj  \
+    .\$(OBJDIR)\nsIconProtocolHandler.obj \
+		$(NULL)
+
+LLIBS=\
+	$(LIBNSPR)               \
+	$(DIST)\lib\xpcom.lib    \
+	$(DIST)\lib\gkgfxwin.lib \
+  $(DIST)\lib\imgiconwin_s.lib \
+	$(NULL)
+
+WIN_LIBS= shell32.lib
+
+INCS = $(INCS)                                         \
+        -I$(DEPTH)\dist\include                        \
+        -I$(DEPTH)\modules\libpr0n\decoders\icon\win   \
+        $(NULL)
+
+include <$(DEPTH)\config\rules.mak>
+
+install:: $(DLL)
+	$(MAKE_INSTALL) .\$(OBJDIR)\$(LIBRARY_NAME).dll $(DIST)\bin\components
+	$(MAKE_INSTALL) .\$(OBJDIR)\$(LIBRARY_NAME).lib $(DIST)\lib
+
+clobber::
+	rm -f $(DIST)\bin\components\$(LIBRARY_NAME).dll
+	rm -f $(DIST)\lib\$(LIBRARY_NAME).lib

mozilla/modules/libpr0n/decoders/icon/nsIconDecoder.cpp

@@ -0,0 +1,195 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Scott MacGregor <mscott@netscape.com>
+ *
+ */
+
+#include "nsIconDecoder.h"
+#include "nsIInputStream.h"
+#include "imgIContainer.h"
+#include "imgIContainerObserver.h"
+#include "nspr.h"
+#include "nsIComponentManager.h"
+#include "nsRect.h"
+
+NS_IMPL_THREADSAFE_ADDREF(nsIconDecoder);
+NS_IMPL_THREADSAFE_RELEASE(nsIconDecoder);
+
+NS_INTERFACE_MAP_BEGIN(nsIconDecoder)
+   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIOutputStream)
+   NS_INTERFACE_MAP_ENTRY(nsIOutputStream)
+   NS_INTERFACE_MAP_ENTRY(imgIDecoder)
+NS_INTERFACE_MAP_END_THREADSAFE
+
+nsIconDecoder::nsIconDecoder()
+{
+  NS_INIT_ISUPPORTS();
+}
+
+nsIconDecoder::~nsIconDecoder()
+{ }
+
+
+/** imgIDecoder methods **/
+
+NS_IMETHODIMP nsIconDecoder::Init(imgIRequest *aRequest)
+{
+  mRequest = aRequest;
+
+  mObserver = do_QueryInterface(aRequest);  // we're holding 2 strong refs to the request.
+
+  aRequest->GetImage(getter_AddRefs(mImage));
+
+  mFrame = do_CreateInstance("@mozilla.org/gfx/image/frame;2");
+  if (!mFrame) return NS_ERROR_FAILURE;
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconDecoder::GetRequest(imgIRequest * *aRequest)
+{
+  *aRequest = mRequest;
+  NS_ADDREF(*aRequest);
+  return NS_OK;
+}
+
+/** nsIOutputStream methods **/
+
+NS_IMETHODIMP nsIconDecoder::Close()
+{
+  if (mObserver) 
+  {
+    mObserver->OnStopFrame(nsnull, nsnull, mFrame);
+    mObserver->OnStopContainer(nsnull, nsnull, mImage);
+    mObserver->OnStopDecode(nsnull, nsnull, NS_OK, nsnull);
+  }
+  
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconDecoder::Flush()
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconDecoder::Write(const char *buf, PRUint32 count, PRUint32 *_retval)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconDecoder::WriteFrom(nsIInputStream *inStr, PRUint32 count, PRUint32 *_retval)
+{
+  nsresult rv;
+
+  char *buf = (char *)PR_Malloc(count);
+  if (!buf) return NS_ERROR_OUT_OF_MEMORY; /* we couldn't allocate the object */
+ 
+  // read the data from the input stram...
+  PRUint32 readLen;
+  rv = inStr->Read(buf, count, &readLen);
+
+  char *data = buf;
+
+  if (NS_FAILED(rv)) return rv;
+
+  // since WriteFrom is only called once, go ahead and fire the on start notifications..
+
+  mObserver->OnStartDecode(nsnull, nsnull);
+  PRUint32 i = 0;
+  // Read size
+  PRInt32 w, h;
+  w = data[0];
+  h = data[1];
+
+  data += 2;
+
+  readLen -= i + 2;
+
+  mImage->Init(w, h, mObserver);
+  if (mObserver)
+    mObserver->OnStartContainer(nsnull, nsnull, mImage);
+
+  mFrame->Init(0, 0, w, h, gfxIFormats::RGB_A1);
+  mImage->AppendFrame(mFrame);
+  if (mObserver)
+    mObserver->OnStartFrame(nsnull, nsnull, mFrame);
+  
+  PRUint32 bpr, abpr;
+  nscoord width, height;
+  mFrame->GetImageBytesPerRow(&bpr);
+  mFrame->GetAlphaBytesPerRow(&abpr);
+  mFrame->GetWidth(&width);
+  mFrame->GetHeight(&height);
+  
+  i = 0;
+  PRInt32 rownum = 0;  // XXX this better not have a decimal
+  
+  PRInt32 wroteLen = 0;
+
+  do 
+  {
+    PRUint8 *line = (PRUint8*)data + i*bpr;
+    mFrame->SetImageData(line, bpr, (rownum++)*bpr);
+
+    nsRect r(0, rownum, width, 1);
+    mObserver->OnDataAvailable(nsnull, nsnull, mFrame, &r);
+
+    wroteLen += bpr ;
+    i++;
+  } while(rownum < height);
+
+
+ // now we want to send in the alpha data...
+ for (rownum = 0; rownum < height; rownum ++)
+ {
+  PRUint8 * line = (PRUint8*) data + abpr * rownum + height*bpr;
+  mFrame->SetAlphaData(line, abpr, (rownum)*abpr);   
+ } 
+
+  PR_FREEIF(buf);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconDecoder::WriteSegments(nsReadSegmentFun reader, void * closure, PRUint32 count, PRUint32 *_retval)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconDecoder::GetNonBlocking(PRBool *aNonBlocking)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconDecoder::SetNonBlocking(PRBool aNonBlocking)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconDecoder::GetObserver(nsIOutputStreamObserver * *aObserver)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconDecoder::SetObserver(nsIOutputStreamObserver * aObserver)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}

mozilla/modules/libpr0n/decoders/icon/nsIconDecoder.h

@@ -0,0 +1,79 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Scott MacGregor <mscott@netscape.com>
+ */
+
+#ifndef nsIconDecoder_h__
+#define nsIconDecoder_h__
+
+#include "imgIDecoder.h"
+
+#include "nsCOMPtr.h"
+
+#include "imgIContainer.h"
+#include "imgIDecoderObserver.h"
+#include "gfxIImageFrame.h"
+#include "imgIRequest.h"
+
+#define NS_ICONDECODER_CID                           \
+{ /* FFC08380-256C-11d5-9905-001083010E9B */         \
+     0xffc08380,                                     \
+     0x256c,                                         \
+     0x11d5,                                         \
+    { 0x99, 0x5, 0x0, 0x10, 0x83, 0x1, 0xe, 0x9b }   \
+}
+
+
+//////////////////////////////////////////////////////////////////////////////////////////////
+// The icon decoder is a decoder specifically tailored for loading icons 
+// from the OS. We've defined our own little format to represent these icons
+// and this decoder takes that format and converts it into 24-bit RGB with alpha channel
+// support. It was modeled a bit off the PPM decoder.
+//
+// Assumptions about the decoder:
+// (1) We receive ALL of the data from the icon channel in one OnDataAvailable call. We don't
+//     support multiple ODA calls yet.
+// (2) the format of the incoming data is as follows:
+//     The first two bytes contain the width and the height of the icon. 
+//     Followed by 3 bytes per pixel for the color bitmap row after row. (for heigh * width * 3 bytes)
+//     Followed by bit mask data (used for transparency on the alpha channel). 
+//
+//
+//////////////////////////////////////////////////////////////////////////////////////////////
+
+class nsIconDecoder : public imgIDecoder
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_IMGIDECODER
+  NS_DECL_NSIOUTPUTSTREAM
+
+  nsIconDecoder();
+  virtual ~nsIconDecoder();
+
+private:
+  nsCOMPtr<imgIContainer> mImage;
+  nsCOMPtr<gfxIImageFrame> mFrame;
+  nsCOMPtr<imgIRequest> mRequest;
+  nsCOMPtr<imgIDecoderObserver> mObserver; // this is just qi'd from mRequest for speed
+};
+
+#endif // nsIconDecoder_h__

mozilla/modules/libpr0n/decoders/icon/nsIconModule.cpp

@@ -0,0 +1,54 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation. Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation. All
+ * Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Scott MacGregor <mscott@netscape.com>
+ */
+
+#include "nsIGenericFactory.h"
+#include "nsIModule.h"
+
+#include "nsIconDecoder.h"
+#include "nsIconProtocolHandler.h"
+
+// objects that just require generic constructors
+/******************************************************************************
+ * Protocol CIDs
+ */
+#define NS_ICONPROTOCOL_CID   { 0xd0f9db12, 0x249c, 0x11d5, { 0x99, 0x5, 0x0, 0x10, 0x83, 0x1, 0xe, 0x9b } } 
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsIconDecoder)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsIconProtocolHandler)
+
+static nsModuleComponentInfo components[] =
+{
+  { "icon decoder",
+    NS_ICONDECODER_CID,
+    "@mozilla.org/image/decoder;2?type=image/icon",
+    nsIconDecoderConstructor, },
+
+   { "Icon Protocol Handler",      
+      NS_ICONPROTOCOL_CID,
+      NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "icon",
+      nsIconProtocolHandlerConstructor
+    }
+};
+
+NS_IMPL_NSGETMODULE("nsIconDecoderModule", components)
+

mozilla/modules/libpr0n/decoders/icon/nsIconProtocolHandler.cpp

@@ -0,0 +1,90 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Brian Ryner.
+ * Portions created by Brian Ryner are Copyright (C) 2000 Brian Ryner.
+ * All Rights Reserved.
+ *
+ * Contributor(s): 
+ *  Scott MacGregor <mscott@netscape.com>
+ */
+
+#include "nsIconChannel.h"
+#include "nsIconProtocolHandler.h"
+#include "nsIURL.h"
+#include "nsCRT.h"
+#include "nsCOMPtr.h"
+#include "nsIComponentManager.h"
+#include "nsIServiceManager.h"
+
+static NS_DEFINE_CID(kStandardURICID, NS_STANDARDURL_CID);
+
+////////////////////////////////////////////////////////////////////////////////
+
+nsIconProtocolHandler::nsIconProtocolHandler() 
+{
+  NS_INIT_REFCNT();
+}
+
+nsIconProtocolHandler::~nsIconProtocolHandler() 
+{}
+
+NS_IMPL_ISUPPORTS2(nsIconProtocolHandler, nsIProtocolHandler, nsISupportsWeakReference)
+
+    
+////////////////////////////////////////////////////////////////////////////////
+// nsIProtocolHandler methods:
+
+NS_IMETHODIMP nsIconProtocolHandler::GetScheme(char* *result) 
+{
+  *result = nsCRT::strdup("icon");
+  if (!*result) return NS_ERROR_OUT_OF_MEMORY;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconProtocolHandler::GetDefaultPort(PRInt32 *result) 
+{
+  *result = 0;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconProtocolHandler::NewURI(const char *aSpec, nsIURI *aBaseURI, nsIURI **result) 
+{
+  nsresult rv;
+
+  // no concept of a relative icon url
+  NS_ASSERTION(!aBaseURI, "base url passed into icon protocol handler");
+  nsCOMPtr<nsIURI> url = do_CreateInstance(kStandardURICID, &rv);
+  if (NS_FAILED(rv)) return rv;
+  rv = url->SetSpec((char*)aSpec);
+  *result = url;
+  NS_IF_ADDREF(*result);
+  return rv;
+}
+
+NS_IMETHODIMP nsIconProtocolHandler::NewChannel(nsIURI* url, nsIChannel* *result)
+{
+  nsCOMPtr<nsIChannel> channel;
+  NS_NEWXPCOM(channel, nsIconChannel);
+
+  if (channel)
+    NS_STATIC_CAST(nsIconChannel*,NS_STATIC_CAST(nsIChannel*, channel))->Init(url);
+
+  *result = channel;
+  NS_IF_ADDREF(*result);
+
+  return NS_OK;
+}
+
+////////////////////////////////////////////////////////////////////////////////

mozilla/modules/libpr0n/decoders/icon/nsIconProtocolHandler.h

@@ -0,0 +1,43 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ *   Scott MacGregor <mscott@netscape.com>
+ */
+
+#ifndef nsIconProtocolHandler_h___
+#define nsIconProtocolHandler_h___
+
+#include "nsWeakReference.h"
+#include "nsIProtocolHandler.h"
+
+class nsIconProtocolHandler : public nsIProtocolHandler, public nsSupportsWeakReference
+{
+public:
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSIPROTOCOLHANDLER
+
+    // nsIconProtocolHandler methods:
+    nsIconProtocolHandler();
+    virtual ~nsIconProtocolHandler();
+
+protected:
+};
+
+#endif /* nsIconProtocolHandler_h___ */

mozilla/modules/libpr0n/decoders/icon/win/makefile.win

@@ -0,0 +1,46 @@
+#!gmake
+#
+# The contents of this file are subject to the Netscape Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/NPL/
+#
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+#
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation. All
+# Rights Reserved.
+#
+# Contributor(s): 
+#  Scott MacGregor <mscott@netscape.com>
+
+DEPTH=..\..\..\..\..
+MODULE=imgicon
+
+LIBRARY_NAME=imgiconwin_s
+
+CPP_OBJS=\
+        .\$(OBJDIR)\nsIconChannel.obj  	\
+         $(NULL)
+
+INCS = $(INCS)                  \
+        -I$(DEPTH)\dist\include \
+        -I..\       	         	\
+		$(NULL)
+
+
+include <$(DEPTH)\config\rules.mak>
+
+install:: $(LIBRARY)
+        $(MAKE_INSTALL) $(LIBRARY) $(DIST)\lib
+         
+
+clobber::
+	rm -f $(DIST)\lib\$(LIBRARY_NAME).lib
+

mozilla/modules/libpr0n/decoders/icon/win/nsIconChannel.cpp

@@ -0,0 +1,377 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Brian Ryner.
+ * Portions created by Brian Ryner are Copyright (C) 2000 Brian Ryner.
+ * All Rights Reserved.
+ *
+ * Contributor(s): 
+ *   Scott MacGregor <mscott@netscape.com>
+ */
+
+
+#include "nsIconChannel.h"
+#include "nsIServiceManager.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsXPIDLString.h"
+#include "nsMimeTypes.h"
+#include "nsMemory.h"
+#include "nsIStringStream.h"
+#include "nsIURL.h"
+#include "nsNetUtil.h"
+
+// we need windows.h to read out registry information...
+#include <windows.h>
+#include <shellapi.h>
+
+// nsIconChannel methods
+nsIconChannel::nsIconChannel()
+{
+  NS_INIT_REFCNT();
+  mStatus = NS_OK;
+}
+
+nsIconChannel::~nsIconChannel() 
+{}
+
+NS_IMPL_THREADSAFE_ISUPPORTS2(nsIconChannel, 
+                              nsIChannel, 
+                              nsIRequest)
+
+nsresult nsIconChannel::Init(nsIURI* uri)
+{
+  nsresult rv;
+  NS_ASSERTION(uri, "no uri");
+  mUrl = uri;
+  return NS_OK;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// nsIRequest methods:
+
+NS_IMETHODIMP nsIconChannel::GetName(PRUnichar* *result)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconChannel::IsPending(PRBool *result)
+{
+  NS_NOTREACHED("nsIconChannel::IsPending");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconChannel::GetStatus(nsresult *status)
+{
+  *status = mStatus;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::Cancel(nsresult status)
+{
+  NS_ASSERTION(NS_FAILED(status), "shouldn't cancel with a success code");
+  nsresult rv = NS_ERROR_FAILURE;
+
+  mStatus = status;
+  return rv;
+}
+
+NS_IMETHODIMP nsIconChannel::Suspend(void)
+{
+  NS_NOTREACHED("nsIconChannel::Suspend");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconChannel::Resume(void)
+{
+  NS_NOTREACHED("nsIconChannel::Resume");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// nsIChannel methods:
+
+NS_IMETHODIMP nsIconChannel::GetOriginalURI(nsIURI* *aURI)
+{
+  *aURI = mOriginalURI ? mOriginalURI : mUrl;
+  NS_ADDREF(*aURI);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetOriginalURI(nsIURI* aURI)
+{
+  mOriginalURI = aURI;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::GetURI(nsIURI* *aURI)
+{
+  *aURI = mUrl;
+  NS_IF_ADDREF(*aURI);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetURI(nsIURI* aURI)
+{
+  mUrl = aURI;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::Open(nsIInputStream **_retval)
+{
+  return NS_ERROR_FAILURE;
+}
+
+void InvertRows(unsigned char * aInitialBuffer, PRUint32 sizeOfBuffer, PRUint32 numBytesPerRow)
+{
+  PRUint32 numRows = sizeOfBuffer / numBytesPerRow;
+  void * temporaryRowHolder = (void *) nsMemory::Alloc(numBytesPerRow);
+
+  PRUint32 currentRow = 0;
+  PRUint32 lastRow = (numRows - 1) * numBytesPerRow;
+  while (currentRow < lastRow)
+  {
+    // store the current row into a temporary buffer
+    nsCRT::memcpy(temporaryRowHolder, (void *) &aInitialBuffer[currentRow], numBytesPerRow);
+    nsCRT::memcpy((void *) &aInitialBuffer[currentRow], (void *)&aInitialBuffer[lastRow], numBytesPerRow);
+    nsCRT::memcpy((void *) &aInitialBuffer[lastRow], temporaryRowHolder, numBytesPerRow);
+    lastRow -= numBytesPerRow;
+    currentRow += numBytesPerRow;
+  }
+}
+
+NS_IMETHODIMP nsIconChannel::AsyncOpen(nsIStreamListener *aListener, nsISupports *ctxt)
+{
+  // get the file name from the url
+  nsXPIDLCString fileName; // will contain a dummy file we'll use to figure out the type of icon desired.
+  nsXPIDLCString filePath; // will contain an optional parameter for small vs. large icon. default is small
+  mUrl->GetHost(getter_Copies(fileName));
+  nsCOMPtr<nsIURL> url (do_QueryInterface(mUrl));
+  if (url)
+    url->GetFileBaseName(getter_Copies(filePath));
+
+  
+  // 1) get a hIcon for the file.
+  SHFILEINFO      sfi;
+  UINT infoFlags = SHGFI_USEFILEATTRIBUTES | SHGFI_ICON;
+  if (filePath && !nsCRT::strcmp(filePath, "large"))
+    infoFlags |= SHGFI_LARGEICON;
+  else // default to small
+    infoFlags |= SHGFI_SMALLICON;
+
+  LONG result= SHGetFileInfo(fileName, FILE_ATTRIBUTE_ARCHIVE, &sfi, sizeof(sfi), infoFlags);
+  if (result > 0 && sfi.hIcon)
+  {
+    // we got a handle to an icon. Now we want to get a bitmap for the icon using GetIconInfo....
+    ICONINFO pIconInfo;
+    result = GetIconInfo(sfi.hIcon, &pIconInfo);
+    if (result > 0)
+    {
+      // now we have the bit map we need to get info about the bitmap
+      BITMAPINFO pBitMapInfo;
+      BITMAPINFOHEADER pBitMapInfoHeader;
+      pBitMapInfo.bmiHeader.biBitCount = 0;
+      pBitMapInfo.bmiHeader.biSize = sizeof(pBitMapInfoHeader);
+
+      HDC pDC = CreateCompatibleDC(NULL); // get a device context for the screen.
+      result = GetDIBits(pDC, pIconInfo.hbmColor, 0, 0, NULL, &pBitMapInfo, DIB_RGB_COLORS);
+      if (result > 0 && pBitMapInfo.bmiHeader.biSizeImage > 0)
+      {
+        // allocate a buffer to hold the bit map....this should be a buffer that's biSizeImage...
+        unsigned char * buffer = (PRUint8 *) nsMemory::Alloc(pBitMapInfo.bmiHeader.biSizeImage);
+        result = GetDIBits(pDC, pIconInfo.hbmColor, 0, pBitMapInfo.bmiHeader.biHeight, (void *) buffer, &pBitMapInfo, DIB_RGB_COLORS);
+        if (result > 0)
+        {
+          PRUint32 bytesPerPixel = pBitMapInfo.bmiHeader.biBitCount / 8;
+          InvertRows(buffer, pBitMapInfo.bmiHeader.biSizeImage, pBitMapInfo.bmiHeader.biWidth * bytesPerPixel);
+          // Convert our little icon buffer which is padded to 4 bytes per pixel into a nice 3 byte per pixel
+          // description.
+          nsCString iconBuffer;
+          iconBuffer.Assign((char) pBitMapInfo.bmiHeader.biWidth);
+          iconBuffer.Append((char) pBitMapInfo.bmiHeader.biHeight);
+          
+          PRInt32 index = 0;
+          if (pBitMapInfo.bmiHeader.biBitCount == 16)
+          {
+            PRUint8 redValue, greenValue, blueValue, partialGreen;
+            while (index < pBitMapInfo.bmiHeader.biSizeImage)
+            {                            
+              DWORD dst=(DWORD) buffer[index];
+              PRUint16 num = 0;
+              num = (PRUint8) buffer[index];
+              num <<= 8;
+              num |= (PRUint8) buffer[index+1];
+
+              //blueValue = (PRUint8)((*dst)&(0x1F));
+              //greenValue = (PRUint8)(((*dst)>>5)&(0x1F));
+              //redValue = (PRUint8)(((*dst)>>10)&(0x1F));
+
+              redValue = ((PRUint32) (((float)(num & 0x7c00) / 0x7c00) * 0xFF0000) & 0xFF0000)>> 16;
+              greenValue =  ((PRUint32)(((float)(num & 0x03E0) / 0x03E0) * 0x00FF00) & 0x00FF00)>> 8;
+              blueValue =  ((PRUint32)(((float)(num & 0x001F) / 0x001F) * 0x0000FF) & 0x0000FF);
+
+              // now we have the right RGB values...
+              iconBuffer.Append((char) redValue);
+              iconBuffer.Append((char) greenValue);
+              iconBuffer.Append((char) blueValue);
+              index += bytesPerPixel;
+            }
+          }
+          else
+          {
+            while (index <pBitMapInfo.bmiHeader.biSizeImage)
+            {
+              iconBuffer.Append((char) buffer[index]);
+              iconBuffer.Append((char) buffer[index+1]);
+              iconBuffer.Append((char) buffer[index+2]);
+              index += bytesPerPixel;
+            }
+          }
+
+          // now we need to tack on the alpha data...which is hbmMask
+          pBitMapInfo.bmiHeader.biBitCount = 0;
+          pBitMapInfo.bmiHeader.biSize = sizeof(pBitMapInfoHeader);
+          result = GetDIBits(pDC, pIconInfo.hbmMask, 0, 0, NULL, &pBitMapInfo, DIB_RGB_COLORS);
+          if (result > 0 && pBitMapInfo.bmiHeader.biSizeImage > 0)
+          {
+            // allocate a buffer to hold the bit map....this should be a buffer that's biSizeImage...
+            unsigned char * maskBuffer = (PRUint8 *) nsMemory::Alloc(pBitMapInfo.bmiHeader.biSizeImage);
+            result = GetDIBits(pDC, pIconInfo.hbmMask, 0, pBitMapInfo.bmiHeader.biHeight, (void *) maskBuffer, &pBitMapInfo, DIB_RGB_COLORS);
+            if (result > 0)
+            {
+              InvertRows(maskBuffer, pBitMapInfo.bmiHeader.biSizeImage, 4);
+              index = 0;
+              // for some reason the bit mask on windows are flipped from the values we really want for transparency. 
+              // So complement each byte in the bit mask.
+              while (index < pBitMapInfo.bmiHeader.biSizeImage)
+              {
+                maskBuffer[index]^=255;
+                index += 1;
+              }
+              iconBuffer.Append((char *) maskBuffer, pBitMapInfo.bmiHeader.biSizeImage);
+            }
+
+            nsMemory::Free(maskBuffer);
+          } // if we have a mask buffer to apply
+
+          // turn our nsString into a stream looking object...
+          aListener->OnStartRequest(this, ctxt);
+
+          // turn our string into a stream...
+          nsCOMPtr<nsISupports> streamSupports;
+          NS_NewByteInputStream(getter_AddRefs(streamSupports), iconBuffer.get(), iconBuffer.Length());
+
+          nsCOMPtr<nsIInputStream> inputStr (do_QueryInterface(streamSupports));
+          aListener->OnDataAvailable(this, ctxt, inputStr, 0, iconBuffer.Length());
+          aListener->OnStopRequest(this, ctxt, NS_OK, nsnull);
+
+        } // if we got valid bits for the main bitmap mask
+        
+        nsMemory::Free(buffer);
+
+      }
+
+      DeleteDC(pDC);
+    }
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::GetLoadAttributes(PRUint32 *aLoadAttributes)
+{
+  *aLoadAttributes = mLoadAttributes;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetLoadAttributes(PRUint32 aLoadAttributes)
+{
+  mLoadAttributes = aLoadAttributes;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::GetContentType(char* *aContentType) 
+{
+  if (!aContentType) return NS_ERROR_NULL_POINTER;
+
+  *aContentType = nsCRT::strdup("image/icon");
+  if (!*aContentType) return NS_ERROR_OUT_OF_MEMORY;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetContentType(const char *aContentType)
+{
+  //It doesn't make sense to set the content-type on this type
+  // of channel...
+  return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsIconChannel::GetContentLength(PRInt32 *aContentLength)
+{
+  *aContentLength = mContentLength;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetContentLength(PRInt32 aContentLength)
+{
+  NS_NOTREACHED("nsIconChannel::SetContentLength");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsIconChannel::GetLoadGroup(nsILoadGroup* *aLoadGroup)
+{
+  *aLoadGroup = mLoadGroup;
+  NS_IF_ADDREF(*aLoadGroup);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetLoadGroup(nsILoadGroup* aLoadGroup)
+{
+  mLoadGroup = aLoadGroup;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::GetOwner(nsISupports* *aOwner)
+{
+  *aOwner = mOwner.get();
+  NS_IF_ADDREF(*aOwner);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetOwner(nsISupports* aOwner)
+{
+  mOwner = aOwner;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::GetNotificationCallbacks(nsIInterfaceRequestor* *aNotificationCallbacks)
+{
+  *aNotificationCallbacks = mCallbacks.get();
+  NS_IF_ADDREF(*aNotificationCallbacks);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::SetNotificationCallbacks(nsIInterfaceRequestor* aNotificationCallbacks)
+{
+  mCallbacks = aNotificationCallbacks;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsIconChannel::GetSecurityInfo(nsISupports * *aSecurityInfo)
+{
+  *aSecurityInfo = nsnull;
+  return NS_OK;
+}
+

mozilla/modules/libpr0n/decoders/icon/win/nsIconChannel.h

@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Brian Ryner.
+ * Portions created by Brian Ryner are Copyright (C) 2000 Brian Ryner.
+ * All Rights Reserved.
+ *
+ * Contributor(s): 
+ *  Scott MacGregor <mscott@netscape.com>
+ */
+
+#ifndef nsIconChannel_h___
+#define nsIconChannel_h___
+
+#include "nsCOMPtr.h"
+#include "nsXPIDLString.h"
+#include "nsIChannel.h"
+#include "nsILoadGroup.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsIURI.h"
+
+class nsIconChannel : public nsIChannel
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIREQUEST
+  NS_DECL_NSICHANNEL
+
+  nsIconChannel();
+  virtual ~nsIconChannel();
+
+  nsresult Init(nsIURI* uri);
+
+protected:
+  nsCOMPtr<nsIURI> mUrl;
+  nsCOMPtr<nsIURI> mOriginalURI;
+  PRUint32         mLoadAttributes;
+  PRInt32          mContentLength;
+  nsCOMPtr<nsILoadGroup> mLoadGroup;
+  nsCOMPtr<nsIInterfaceRequestor> mCallbacks;
+  nsCOMPtr<nsISupports>  mOwner; 
+  nsresult mStatus;
+};
+
+#endif /* nsIconChannel_h___ */

mozilla/modules/libpr0n/decoders/jpeg/Makefile.in

@@ -0,0 +1,42 @@
+#
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#
+
+DEPTH		= ../../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+MODULE		= imgjpeg
+LIBRARY_NAME	= imgjpeg
+IS_COMPONENT	= 1
+
+REQUIRES	= xpcom string necko layout jpeg gfx2 imglib2
+
+CPPSRCS		= nsJPEGDecoder.cpp nsJPEGFactory.cpp
+
+EXTRA_DSO_LDOPTS = $(JPEG_LIBS) $(ZLIB_LIBS) \
+		$(MOZ_COMPONENT_LIBS) \
+		$(NULL)
+
+include $(topsrcdir)/config/rules.mk
+

mozilla/modules/libpr0n/decoders/jpeg/makefile.win

@@ -0,0 +1,52 @@
+#!nmake
+# 
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#    Stuart Parmenter <pavlov@netscape.com>
+#
+
+DEPTH=..\..\..\..
+include <$(DEPTH)/config/config.mak>
+
+MODULE			= imgjpeg
+LIBRARY_NAME	= imgjpeg
+DLL			= $(OBJDIR)\$(LIBRARY_NAME).dll
+MAKE_OBJ_TYPE	= DLL
+
+OBJS	= \
+		.\$(OBJDIR)\nsJPEGDecoder.obj \
+		.\$(OBJDIR)\nsJPEGFactory.obj \
+		$(NULL)
+
+LLIBS=\
+	$(LIBNSPR) \
+	$(DIST)\lib\jpeg3250.lib \
+	$(DIST)\lib\xpcom.lib \
+	$(DIST)\lib\gkgfxwin.lib \
+	$(NULL)
+
+include <$(DEPTH)\config\rules.mak>
+
+install:: $(DLL)
+	$(MAKE_INSTALL) .\$(OBJDIR)\$(LIBRARY_NAME).dll $(DIST)\bin\components
+	$(MAKE_INSTALL) .\$(OBJDIR)\$(LIBRARY_NAME).lib $(DIST)\lib
+
+clobber::
+	rm -f $(DIST)\bin\components\$(LIBRARY_NAME).dll
+	rm -f $(DIST)\lib\$(LIBRARY_NAME).lib

mozilla/modules/libpr0n/decoders/jpeg/nsJPEGDecoder.cpp

@@ -0,0 +1,829 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ *
+ */
+
+#include "nsJPEGDecoder.h"
+
+#include "nsIInputStream.h"
+
+#include "nspr.h"
+
+#include "nsCRT.h"
+
+#include "nsIComponentManager.h"
+
+#include "imgIContainerObserver.h"
+
+
+#include "ImageLogging.h"
+
+
+NS_IMPL_ISUPPORTS2(nsJPEGDecoder, imgIDecoder, nsIOutputStream)
+
+
+#if defined(PR_LOGGING)
+PRLogModuleInfo *gJPEGlog = PR_NewLogModule("JPEGDecoder");
+#else
+#define gJPEGlog
+#endif
+
+
+
+void PR_CALLBACK init_source (j_decompress_ptr jd);
+boolean PR_CALLBACK fill_input_buffer (j_decompress_ptr jd);
+void PR_CALLBACK skip_input_data (j_decompress_ptr jd, long num_bytes);
+void PR_CALLBACK term_source (j_decompress_ptr jd);
+void PR_CALLBACK my_error_exit (j_common_ptr cinfo);
+
+/* Normal JFIF markers can't have more bytes than this. */
+#define MAX_JPEG_MARKER_LENGTH  (((PRUint32)1 << 16) - 1)
+
+
+/* Possible states for JPEG source manager */
+enum data_source_state {
+    READING_BACK = 0, /* Must be zero for init purposes */
+    READING_NEW
+};
+
+/*
+ *  Implementation of a JPEG src object that understands our state machine
+ */
+typedef struct {
+  /* public fields; must be first in this struct! */
+  struct jpeg_source_mgr pub;
+
+  nsJPEGDecoder *decoder;
+
+} decoder_source_mgr;
+
+
+nsJPEGDecoder::nsJPEGDecoder()
+{
+  NS_INIT_ISUPPORTS();
+
+  mState = JPEG_HEADER;
+  mFillState = READING_BACK;
+
+  mSamples = nsnull;
+  mSamples3 = nsnull;
+  mRGBPadRow = nsnull;
+  mRGBPadRowLength = 0;
+
+  mBytesToSkip = 0;
+  
+  memset(&mInfo, 0, sizeof(jpeg_decompress_struct));
+
+  mCompletedPasses = 0;
+
+  mBuffer = nsnull;
+  mBufferLen = mBufferSize = 0;
+
+  mBackBuffer = nsnull;
+  mBackBufferLen = mBackBufferSize = mBackBufferUnreadLen = 0;
+
+}
+
+nsJPEGDecoder::~nsJPEGDecoder()
+{
+  if (mBuffer)
+    PR_Free(mBuffer);
+  if (mBackBuffer)
+    PR_Free(mBackBuffer);
+  if (mRGBPadRow)
+    PR_Free(mRGBPadRow);
+}
+
+
+/** imgIDecoder methods **/
+
+/* void init (in imgIRequest aRequest); */
+NS_IMETHODIMP nsJPEGDecoder::Init(imgIRequest *aRequest)
+{
+  mRequest = aRequest;
+  mObserver = do_QueryInterface(mRequest);
+
+  aRequest->GetImage(getter_AddRefs(mImage));
+
+  /* We set up the normal JPEG error routines, then override error_exit. */
+  mInfo.err = jpeg_std_error(&mErr.pub);
+  /*   mInfo.err = jpeg_std_error(&mErr.pub); */
+  mErr.pub.error_exit = my_error_exit;
+  /* Establish the setjmp return context for my_error_exit to use. */
+  if (setjmp(mErr.setjmp_buffer)) {
+    /* If we get here, the JPEG code has signaled an error.
+     * We need to clean up the JPEG object, close the input file, and return.
+     */
+    return NS_ERROR_FAILURE;
+  }
+
+  /* Step 1: allocate and initialize JPEG decompression object */
+  jpeg_create_decompress(&mInfo);
+  
+  decoder_source_mgr *src;
+  if (mInfo.src == NULL) {
+    //mInfo.src = PR_NEWZAP(decoder_source_mgr);
+    src = PR_NEWZAP(decoder_source_mgr);
+    if (!src) {
+      return PR_FALSE;
+    }
+    mInfo.src = (struct jpeg_source_mgr *) src;
+  }
+
+  /* Step 2: specify data source (eg, a file) */
+
+  /* Setup callback functions. */
+  src->pub.init_source = init_source;
+  src->pub.fill_input_buffer = fill_input_buffer;
+  src->pub.skip_input_data = skip_input_data;
+  src->pub.resync_to_restart = jpeg_resync_to_restart;
+  src->pub.term_source = term_source;
+
+  src->decoder = this;
+
+
+
+  return NS_OK;
+}
+
+/* readonly attribute imgIRequest request; */
+NS_IMETHODIMP nsJPEGDecoder::GetRequest(imgIRequest * *aRequest)
+{
+  *aRequest = mRequest;
+  NS_ADDREF(*aRequest);
+  return NS_OK;
+}
+
+
+
+
+
+
+/** nsIOutputStream methods **/
+
+/* void close (); */
+NS_IMETHODIMP nsJPEGDecoder::Close()
+{
+  PR_LOG(gJPEGlog, PR_LOG_DEBUG,
+         ("[this=%p] nsJPEGDecoder::Close\n", this));
+
+  if (mState != JPEG_DONE && mState != JPEG_SINK_NON_JPEG_TRAILER)
+    NS_WARNING("Never finished decoding the JPEG.");
+
+  /* Step 8: Release JPEG decompression object */
+
+  /* This is an important step since it will release a good deal of memory. */
+  jpeg_destroy_decompress(&mInfo);
+
+  return NS_OK;
+}
+
+/* void flush (); */
+NS_IMETHODIMP nsJPEGDecoder::Flush()
+{
+  LOG_SCOPE(gJPEGlog, "nsJPEGDecoder::Flush");
+
+  PRUint32 ret;
+  if (mState != JPEG_DONE && mState != JPEG_SINK_NON_JPEG_TRAILER)
+    return this->WriteFrom(nsnull, 0, &ret);
+
+  return NS_OK;
+}
+
+/* unsigned long write (in string buf, in unsigned long count); */
+NS_IMETHODIMP nsJPEGDecoder::Write(const char *buf, PRUint32 count, PRUint32 *_retval)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* unsigned long writeFrom (in nsIInputStream inStr, in unsigned long count); */
+NS_IMETHODIMP nsJPEGDecoder::WriteFrom(nsIInputStream *inStr, PRUint32 count, PRUint32 *_retval)
+{
+  LOG_SCOPE_WITH_PARAM(gJPEGlog, "nsJPEGDecoder::WriteFrom", "count", count);
+
+  /* We use our private extension JPEG error handler.
+   * Note that this struct must live as long as the main JPEG parameter
+   * struct, to avoid dangling-pointer problems.
+   */
+  // XXX above what is this?
+
+
+  if (inStr) {
+    if (!mBuffer) {
+      mBuffer = (JOCTET *)PR_Malloc(count);
+      mBufferSize = count;
+    } else if (count > mBufferSize) {
+      mBuffer = (JOCTET *)PR_Realloc(mBuffer, count);
+      mBufferSize = count;
+    }
+
+    nsresult rv = inStr->Read((char*)mBuffer, count, &mBufferLen);
+    *_retval = mBufferLen;
+
+    //nsresult rv = mOutStream->WriteFrom(inStr, count, _retval);
+
+    NS_ASSERTION(NS_SUCCEEDED(rv), "nsJPEGDecoder::WriteFrom -- mOutStream->WriteFrom failed");
+  }
+  // else no input stream.. Flush() ?
+
+
+  nsresult error_code = NS_ERROR_FAILURE;
+  /* Return here if there is a fatal error. */
+  if ((error_code = setjmp(mErr.setjmp_buffer)) != 0) {
+    return error_code;
+  }
+
+
+  PR_LOG(gJPEGlog, PR_LOG_DEBUG,
+         ("[this=%p] nsJPEGDecoder::WriteFrom -- processing JPEG data\n", this));
+
+  decoder_source_mgr *src = NS_REINTERPRET_CAST(decoder_source_mgr *, mInfo.src);
+
+  switch (mState) {
+  case JPEG_HEADER:
+  {
+    LOG_SCOPE(gJPEGlog, "nsJPEGDecoder::WriteFrom -- entering JPEG_HEADER case");
+
+    /* Step 3: read file parameters with jpeg_read_header() */
+    if (jpeg_read_header(&mInfo, TRUE) == JPEG_SUSPENDED)
+      return NS_OK; /* I/O suspension */
+
+    /*
+     * Don't allocate a giant and superfluous memory buffer
+     * when the image is a sequential JPEG.
+     */
+    mInfo.buffered_image = jpeg_has_multiple_scans(&mInfo);
+
+    /* Used to set up image size so arrays can be allocated */
+    jpeg_calc_output_dimensions(&mInfo);
+
+    mObserver->OnStartDecode(nsnull, nsnull);
+
+    mImage->Init(mInfo.image_width, mInfo.image_height, mObserver);
+    mObserver->OnStartContainer(nsnull, nsnull, mImage);
+
+    mFrame = do_CreateInstance("@mozilla.org/gfx/image/frame;2");
+    gfx_format format;
+#ifdef XP_PC
+    format = gfxIFormats::BGR;
+#else
+    format = gfxIFormats::RGB;
+#endif
+    mFrame->Init(0, 0, mInfo.image_width, mInfo.image_height, format);
+    mImage->AppendFrame(mFrame);
+    mObserver->OnStartFrame(nsnull, nsnull, mFrame);
+
+
+    /*
+     * Make a one-row-high sample array that will go away
+     * when done with image. Always make it big enough to
+     * hold an RGB row.  Since this uses the IJG memory
+     * manager, it must be allocated before the call to
+     * jpeg_start_compress().
+     */
+    int row_stride;
+
+    if(mInfo.output_components == 1)
+      row_stride = mInfo.output_width;
+    else
+      row_stride = mInfo.output_width * 4; // use 4 instead of mInfo.output_components
+                                           // so we don't have to fuss with byte alignment.
+                                           // Mac wants 4 anyways.
+
+    mSamples = (*mInfo.mem->alloc_sarray)((j_common_ptr) &mInfo,
+                                           JPOOL_IMAGE,
+                                           row_stride, 1);
+
+#if defined(XP_PC) || defined(XP_MAC)
+    // allocate buffer to do byte flipping if needed
+    if (mInfo.output_components == 3) {
+      mRGBPadRow = (PRUint8*) PR_MALLOC(row_stride);
+      mRGBPadRowLength = row_stride;
+      memset(mRGBPadRow, 0, mRGBPadRowLength);
+    }
+#endif
+
+    /* Allocate RGB buffer for conversion from greyscale. */
+    if (mInfo.output_components != 3) {
+      row_stride = mInfo.output_width * 4;
+      mSamples3 = (*mInfo.mem->alloc_sarray)((j_common_ptr) &mInfo,
+                                              JPOOL_IMAGE,
+                                              row_stride, 1);
+    }
+
+    mState = JPEG_START_DECOMPRESS;
+  }
+  case JPEG_START_DECOMPRESS:
+  {
+    LOG_SCOPE(gJPEGlog, "nsJPEGDecoder::WriteFrom -- entering JPEG_START_DECOMPRESS case");
+    /* Step 4: set parameters for decompression */
+
+    /* FIXME -- Should reset dct_method and dither mode
+     * for final pass of progressive JPEG
+     */
+    mInfo.dct_method = JDCT_FASTEST;
+    mInfo.dither_mode = JDITHER_ORDERED;
+    mInfo.do_fancy_upsampling = FALSE;
+    mInfo.enable_2pass_quant = FALSE;
+    mInfo.do_block_smoothing = TRUE;
+
+    /* Step 5: Start decompressor */
+    if (jpeg_start_decompress(&mInfo) == FALSE)
+      return NS_OK; /* I/O suspension */
+
+    /* If this is a progressive JPEG ... */
+    if (mInfo.buffered_image) {
+      mState = JPEG_DECOMPRESS_PROGRESSIVE;
+    } else {
+      mState = JPEG_DECOMPRESS_SEQUENTIAL;
+    }
+
+  }
+
+  case JPEG_DECOMPRESS_SEQUENTIAL:
+  {
+    if (mState == JPEG_DECOMPRESS_SEQUENTIAL)
+    {
+      LOG_SCOPE(gJPEGlog, "nsJPEGDecoder::WriteFrom -- JPEG_DECOMPRESS_SEQUENTIAL case");
+
+      if (OutputScanlines(-1) == PR_FALSE)
+        return NS_OK; /* I/O suspension */
+
+      /* If we've completed image output ... */
+      NS_ASSERTION(mInfo.output_scanline == mInfo.output_height, "We didn't process all of the data!");
+      mState = JPEG_DONE;    
+    }
+  }
+
+
+  case JPEG_DECOMPRESS_PROGRESSIVE:
+  {
+    if (mState == JPEG_DECOMPRESS_PROGRESSIVE)
+    {
+      LOG_SCOPE(gJPEGlog, "nsJPEGDecoder::WriteFrom -- JPEG_DECOMPRESS_PROGRESSIVE case");
+
+      int status;
+      do {
+        status = jpeg_consume_input(&mInfo);
+      } while (!((status == JPEG_SUSPENDED) ||
+                 (status == JPEG_REACHED_EOI)));
+
+      switch (status) {
+        case JPEG_REACHED_EOI:
+          // End of image
+          mState = JPEG_FINAL_PROGRESSIVE_SCAN_OUTPUT;
+          break;
+        case JPEG_SUSPENDED:
+          PR_LOG(gJPEGlog, PR_LOG_DEBUG,
+                 ("[this=%p] nsJPEGDecoder::WriteFrom -- suspending\n", this));
+
+          return NS_OK; /* I/O suspension */
+        default:
+          printf("got someo other state!?\n");
+      }
+    }
+  }
+
+  case JPEG_FINAL_PROGRESSIVE_SCAN_OUTPUT:
+  {
+    if (mState == JPEG_FINAL_PROGRESSIVE_SCAN_OUTPUT)
+    {
+      LOG_SCOPE(gJPEGlog, "nsJPEGDecoder::WriteFrom -- entering JPEG_FINAL_PROGRESSIVE_SCAN_OUTPUT case");
+
+      // XXX progressive? ;)
+      // not really progressive according to the state machine... -saari
+      jpeg_start_output(&mInfo, mInfo.input_scan_number);
+      if (OutputScanlines(-1) == PR_FALSE)
+        return NS_OK; /* I/O suspension */
+      jpeg_finish_output(&mInfo);
+      mState = JPEG_DONE;
+    }
+  }
+
+  case JPEG_DONE:
+  {
+    LOG_SCOPE(gJPEGlog, "nsJPEGDecoder::WriteFrom -- entering JPEG_DONE case");
+
+    /* Step 7: Finish decompression */
+
+    if (jpeg_finish_decompress(&mInfo) == FALSE)
+      return NS_OK; /* I/O suspension */
+
+    mState = JPEG_SINK_NON_JPEG_TRAILER;
+
+    /* we're done dude */
+    break;
+  }
+  case JPEG_SINK_NON_JPEG_TRAILER:
+    PR_LOG(gJPEGlog, PR_LOG_DEBUG,
+           ("[this=%p] nsJPEGDecoder::WriteFrom -- entering JPEG_SINK_NON_JPEG_TRAILER case\n", this));
+
+    break;
+  }
+
+  return NS_OK;
+}
+
+
+int
+nsJPEGDecoder::OutputScanlines(int num_scanlines)
+{
+  int pass = 0;
+  
+  if (mState == JPEG_FINAL_PROGRESSIVE_SCAN_OUTPUT)
+      pass = -1;
+  else
+      pass = mCompletedPasses + 1;
+
+  while ((mInfo.output_scanline < mInfo.output_height) && num_scanlines--) {
+      JSAMPROW samples;
+      
+      /* Request one scanline.  Returns 0 or 1 scanlines. */
+      int ns = jpeg_read_scanlines(&mInfo, mSamples, 1);
+      
+      if (ns != 1) {
+        return PR_FALSE; /* suspend */
+      }
+
+      /* If grayscale image ... */
+      if (mInfo.output_components == 1) {
+        JSAMPLE j;
+        JSAMPLE *j1 = mSamples[0];
+        const JSAMPLE *j1end = j1 + mInfo.output_width;
+        JSAMPLE *j3 = mSamples3[0];
+
+        /* Convert from grayscale to RGB. */
+        while (j1 < j1end) {
+#ifdef XP_MAC
+          j = *j1++;
+          j3[0] = 0;
+          j3[1] = j;
+          j3[2] = j;
+          j3[3] = j;
+          j3 += 4;
+#else
+          j = *j1++;
+          j3[0] = j;
+          j3[1] = j;
+          j3[2] = j;
+          j3 += 3;
+#endif
+        }
+        samples = mSamples3[0];
+      } else {
+        /* 24-bit color image */
+#ifdef XP_PC
+        memset(mRGBPadRow, 0, mInfo.output_width * 4);
+        PRUint8 *ptrOutputBuf = mRGBPadRow;
+
+        JSAMPLE *j1 = mSamples[0];
+        for (PRUint32 i=0;i<mInfo.output_width;++i) {
+          ptrOutputBuf[2] = *j1++;
+          ptrOutputBuf[1] = *j1++;
+          ptrOutputBuf[0] = *j1++;
+          ptrOutputBuf += 3;
+        }
+
+        samples = mRGBPadRow;
+#else
+#ifdef XP_MAC
+        memset(mRGBPadRow, 0, mInfo.output_width * 4);
+        PRUint8 *ptrOutputBuf = mRGBPadRow;
+
+        JSAMPLE *j1 = mSamples[0];
+        for (PRUint32 i=0;i<mInfo.output_width;++i) {
+          ptrOutputBuf[0] = 0;
+          ptrOutputBuf[1] = *j1++;
+          ptrOutputBuf[2] = *j1++;
+          ptrOutputBuf[3] = *j1++;
+          ptrOutputBuf += 4;
+        }
+
+        samples = mRGBPadRow;
+#else
+        samples = mSamples[0];
+#endif
+#endif
+      }
+
+      PRUint32 bpr;
+      mFrame->GetImageBytesPerRow(&bpr);
+      mFrame->SetImageData(
+        samples,             // data
+        bpr,                 // length
+        (mInfo.output_scanline-1) * bpr); // offset
+
+      nsRect r(0, mInfo.output_scanline, mInfo.output_width, 1);
+      mObserver->OnDataAvailable(nsnull, nsnull, mFrame, &r);
+
+  }
+
+  return PR_TRUE;
+}
+
+
+/* [noscript] unsigned long writeSegments (in nsReadSegmentFun reader, in voidPtr closure, in unsigned long count); */
+NS_IMETHODIMP nsJPEGDecoder::WriteSegments(nsReadSegmentFun reader, void * closure, PRUint32 count, PRUint32 *_retval)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* attribute boolean nonBlocking; */
+NS_IMETHODIMP nsJPEGDecoder::GetNonBlocking(PRBool *aNonBlocking)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+NS_IMETHODIMP nsJPEGDecoder::SetNonBlocking(PRBool aNonBlocking)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* attribute nsIOutputStreamObserver observer; */
+NS_IMETHODIMP nsJPEGDecoder::GetObserver(nsIOutputStreamObserver * *aObserver)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+NS_IMETHODIMP nsJPEGDecoder::SetObserver(nsIOutputStreamObserver * aObserver)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+
+
+
+
+/* Override the standard error method in the IJG JPEG decoder code. */
+void PR_CALLBACK
+my_error_exit (j_common_ptr cinfo)
+{
+  nsresult error_code = NS_ERROR_FAILURE;
+  decoder_error_mgr *err = (decoder_error_mgr *) cinfo->err;
+
+#if 0
+#ifdef DEBUG
+/*ptn fix later */
+  if (il_debug >= 1) {
+      char buffer[JMSG_LENGTH_MAX];
+
+      /* Create the message */
+      (*cinfo->err->format_message) (cinfo, buffer);
+
+      ILTRACE(1,("%s\n", buffer));
+  }
+#endif
+
+
+  /* Convert error to a browser error code */
+  if (cinfo->err->msg_code == JERR_OUT_OF_MEMORY)
+      error_code = MK_OUT_OF_MEMORY;
+  else
+      error_code = MK_IMAGE_LOSSAGE;
+#endif
+
+  char buffer[JMSG_LENGTH_MAX];
+
+  /* Create the message */
+  (*cinfo->err->format_message) (cinfo, buffer);
+
+  fprintf(stderr, "my_error_exit()\n%s\n", buffer);
+
+  /* Return control to the setjmp point. */
+  longjmp(err->setjmp_buffer, error_code);
+}
+
+/******************************************************************************/
+/*-----------------------------------------------------------------------------
+ * This is the callback routine from the IJG JPEG library used to supply new
+ * data to the decompressor when its input buffer is exhausted.  It juggles
+ * multiple buffers in an attempt to avoid unnecessary copying of input data.
+ *
+ * (A simpler scheme is possible: It's much easier to use only a single
+ * buffer; when fill_input_buffer() is called, move any unconsumed data
+ * (beyond the current pointer/count) down to the beginning of this buffer and
+ * then load new data into the remaining buffer space.  This approach requires
+ * a little more data copying but is far easier to get right.)
+ *
+ * At any one time, the JPEG decompressor is either reading from the necko
+ * input buffer, which is volatile across top-level calls to the IJG library,
+ * or the "backtrack" buffer.  The backtrack buffer contains the remaining
+ * unconsumed data from the necko buffer after parsing was suspended due
+ * to insufficient data in some previous call to the IJG library.
+ *
+ * When suspending, the decompressor will back up to a convenient restart
+ * point (typically the start of the current MCU). The variables
+ * next_input_byte & bytes_in_buffer indicate where the restart point will be
+ * if the current call returns FALSE.  Data beyond this point must be
+ * rescanned after resumption, so it must be preserved in case the decompressor
+ * decides to backtrack.
+ *
+ * Returns:
+ *  TRUE if additional data is available, FALSE if no data present and
+ *   the JPEG library should therefore suspend processing of input stream
+ *---------------------------------------------------------------------------*/
+
+/******************************************************************************/
+/* data source manager method 
+/******************************************************************************/
+
+
+/******************************************************************************/
+/* data source manager method 
+	Initialize source.  This is called by jpeg_read_header() before any
+	data is actually read.  May leave
+	bytes_in_buffer set to 0 (in which case a fill_input_buffer() call
+	will occur immediately).
+*/
+void PR_CALLBACK
+init_source (j_decompress_ptr jd)
+{
+}
+
+/******************************************************************************/
+/* data source manager method
+	Skip num_bytes worth of data.  The buffer pointer and count should
+	be advanced over num_bytes input bytes, refilling the buffer as
+	needed.  This is used to skip over a potentially large amount of
+	uninteresting data (such as an APPn marker).  In some applications
+	it may be possible to optimize away the reading of the skipped data,
+	but it's not clear that being smart is worth much trouble; large
+	skips are uncommon.  bytes_in_buffer may be zero on return.
+	A zero or negative skip count should be treated as a no-op.
+*/
+void PR_CALLBACK
+skip_input_data (j_decompress_ptr jd, long num_bytes)
+{
+  decoder_source_mgr *src = (decoder_source_mgr *)jd->src;
+
+  if (num_bytes > (long)src->pub.bytes_in_buffer) {
+    /*
+     * Can't skip it all right now until we get more data from
+     * network stream. Set things up so that fill_input_buffer
+     * will skip remaining amount.
+     */
+    src->decoder->mBytesToSkip = (size_t)num_bytes - src->pub.bytes_in_buffer;
+    src->pub.next_input_byte += src->pub.bytes_in_buffer;
+    src->pub.bytes_in_buffer = 0;
+
+  } else {
+    /* Simple case. Just advance buffer pointer */
+
+    src->pub.bytes_in_buffer -= (size_t)num_bytes;
+    src->pub.next_input_byte += num_bytes;
+  }
+}
+
+
+/******************************************************************************/
+/* data source manager method
+	This is called whenever bytes_in_buffer has reached zero and more
+	data is wanted.  In typical applications, it should read fresh data
+	into the buffer (ignoring the current state of next_input_byte and
+	bytes_in_buffer), reset the pointer & count to the start of the
+	buffer, and return TRUE indicating that the buffer has been reloaded.
+	It is not necessary to fill the buffer entirely, only to obtain at
+	least one more byte.  bytes_in_buffer MUST be set to a positive value
+	if TRUE is returned.  A FALSE return should only be used when I/O
+	suspension is desired.
+*/
+boolean PR_CALLBACK
+fill_input_buffer (j_decompress_ptr jd)
+{
+  decoder_source_mgr *src = (decoder_source_mgr *)jd->src;
+
+  unsigned char *new_buffer = (unsigned char *)src->decoder->mBuffer;
+  PRUint32 new_buflen = src->decoder->mBufferLen;
+  PRUint32 bytesToSkip = src->decoder->mBytesToSkip;
+
+  switch(src->decoder->mFillState) {
+  case READING_BACK:
+    {
+      if (!new_buffer || new_buflen == 0)
+        return PR_FALSE; /* suspend */
+
+      src->decoder->mBufferLen = 0;
+
+      if (bytesToSkip != 0) {
+        if (bytesToSkip < new_buflen) {
+          /* All done skipping bytes; Return what's left. */
+          new_buffer += bytesToSkip;
+          new_buflen -= bytesToSkip;
+          src->decoder->mBytesToSkip = 0;
+        } else {
+          /* Still need to skip some more data in the future */
+          src->decoder->mBytesToSkip -= (size_t)new_buflen;
+          return PR_FALSE; /* suspend */
+        }
+      }
+
+      src->decoder->mBackBufferUnreadLen = src->pub.bytes_in_buffer;
+
+      src->pub.next_input_byte = new_buffer;
+      src->pub.bytes_in_buffer = (size_t)new_buflen;
+      src->decoder->mFillState = READING_NEW;
+
+      return PR_TRUE;
+    }
+    break;
+
+  case READING_NEW:
+    {
+      if (src->pub.next_input_byte != src->decoder->mBuffer) {
+        /* Backtrack data has been permanently consumed. */
+        src->decoder->mBackBufferUnreadLen = 0;
+        src->decoder->mBackBufferLen = 0;
+      }
+
+      /* Save remainder of netlib buffer in backtrack buffer */
+      PRUint32 new_backtrack_buflen = src->pub.bytes_in_buffer + src->decoder->mBackBufferLen;
+
+
+      /* Make sure backtrack buffer is big enough to hold new data. */
+      if (src->decoder->mBackBufferSize < new_backtrack_buflen) {
+
+        /* Round up to multiple of 16 bytes. */
+        PRUint32 roundup_buflen = ((new_backtrack_buflen + 15) >> 4) << 4;
+        if (src->decoder->mBackBufferSize) {
+            src->decoder->mBackBuffer =
+          (JOCTET *)PR_REALLOC(src->decoder->mBackBuffer, roundup_buflen);
+        } else {
+          src->decoder->mBackBuffer = (JOCTET*)PR_MALLOC(roundup_buflen);
+        }
+
+        /* Check for OOM */
+        if (!src->decoder->mBackBuffer) {
+#if 0
+          j_common_ptr cinfo = (j_common_ptr)(&src->js->jd);
+          cinfo->err->msg_code = JERR_OUT_OF_MEMORY;
+          my_error_exit(cinfo);
+#endif
+        }
+          
+        src->decoder->mBackBufferSize = (size_t)roundup_buflen;
+
+        /* Check for malformed MARKER segment lengths. */
+        if (new_backtrack_buflen > MAX_JPEG_MARKER_LENGTH) {
+          my_error_exit((j_common_ptr)(&src->decoder->mInfo));
+        }
+      }
+
+
+      /* Copy remainder of netlib buffer into backtrack buffer. */
+      nsCRT::memmove(src->decoder->mBackBuffer + src->decoder->mBackBufferLen,
+                     src->pub.next_input_byte,
+                     src->pub.bytes_in_buffer);
+
+
+      /* Point to start of data to be rescanned. */
+      src->pub.next_input_byte = src->decoder->mBackBuffer + src->decoder->mBackBufferLen - src->decoder->mBackBufferUnreadLen;
+      src->pub.bytes_in_buffer += src->decoder->mBackBufferUnreadLen;
+      src->decoder->mBackBufferLen = (size_t)new_backtrack_buflen;
+    
+      src->decoder->mFillState = READING_BACK;
+
+      return PR_FALSE;
+    }
+    break;
+  }
+
+  return PR_FALSE;
+}
+
+/******************************************************************************/
+/* data source manager method */
+/*
+ * Terminate source --- called by jpeg_finish_decompress() after all
+ * data has been read to clean up JPEG source manager. NOT called by 
+ * jpeg_abort() or jpeg_destroy().
+ */
+void PR_CALLBACK
+term_source (j_decompress_ptr jd)
+{
+  decoder_source_mgr *src = (decoder_source_mgr *)jd->src;
+
+  if (src->decoder->mObserver) {
+    src->decoder->mObserver->OnStopFrame(nsnull, nsnull, src->decoder->mFrame);
+    src->decoder->mObserver->OnStopContainer(nsnull, nsnull, src->decoder->mImage);
+    src->decoder->mObserver->OnStopDecode(nsnull, nsnull, NS_OK, nsnull);
+  }
+
+    /* No work necessary here */
+}

mozilla/modules/libpr0n/decoders/jpeg/nsJPEGDecoder.h

@@ -0,0 +1,121 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#ifndef nsJPEGDecoder_h__
+#define nsJPEGDecoder_h__
+
+#include "imgIDecoder.h"
+
+#include "nsCOMPtr.h"
+
+#include "imgIContainer.h"
+#include "gfxIImageFrame.h"
+#include "imgIDecoderObserver.h"
+#include "imgIRequest.h"
+#include "nsIInputStream.h"
+#include "nsIPipe.h"
+
+extern "C" {
+#include "jpeglib.h"
+}
+
+#include <setjmp.h>
+
+#define NS_JPEGDECODER_CID \
+{ /* 5871a422-1dd2-11b2-ab3f-e2e56be5da9c */         \
+     0x5871a422,                                     \
+     0x1dd2,                                         \
+     0x11b2,                                         \
+    {0xab, 0x3f, 0xe2, 0xe5, 0x6b, 0xe5, 0xda, 0x9c} \
+}
+
+typedef struct {
+    struct jpeg_error_mgr pub;  /* "public" fields for IJG library*/
+    jmp_buf setjmp_buffer;      /* For handling catastropic errors */
+} decoder_error_mgr;
+
+
+typedef enum {
+    JPEG_HEADER,                          /* Reading JFIF headers */
+    JPEG_START_DECOMPRESS,
+    JPEG_DECOMPRESS_PROGRESSIVE,          /* Output progressive pixels */
+    JPEG_DECOMPRESS_SEQUENTIAL,           /* Output sequential pixels */
+    JPEG_FINAL_PROGRESSIVE_SCAN_OUTPUT,
+    JPEG_DONE,
+    JPEG_SINK_NON_JPEG_TRAILER,          /* Some image files have a */
+                                         /* non-JPEG trailer */
+    JPEG_ERROR    
+} jstate;
+
+class nsJPEGDecoder : public imgIDecoder
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_IMGIDECODER
+  NS_DECL_NSIOUTPUTSTREAM
+
+  nsJPEGDecoder();
+  virtual ~nsJPEGDecoder();
+
+  PRBool FillInput(j_decompress_ptr jd);
+
+  PRUint32 mBytesToSkip;
+
+protected:
+  int OutputScanlines(int num_scanlines);
+
+public:
+  nsCOMPtr<imgIContainer> mImage;
+  nsCOMPtr<gfxIImageFrame> mFrame;
+  nsCOMPtr<imgIRequest> mRequest;
+
+  nsCOMPtr<imgIDecoderObserver> mObserver;
+
+  struct jpeg_decompress_struct mInfo;
+  decoder_error_mgr mErr;
+  jstate mState;
+
+  JSAMPARRAY mSamples;
+  JSAMPARRAY mSamples3;
+  PRUint8*   mRGBPadRow;
+  PRUint32   mRGBPadRowLength;
+
+  PRInt32 mCompletedPasses;
+  PRInt32 mPasses;
+
+  int mFillState;
+
+  JOCTET *mBuffer;
+  PRUint32 mBufferLen;  // amount of data currently in mBuffer
+  PRUint32 mBufferSize; // size in bytes what mBuffer was created with
+
+  JOCTET *mBackBuffer;
+  PRUint32 mBackBufferLen; // Offset of end of active backtrack data
+  PRUint32 mBackBufferSize; // size in bytes what mBackBuffer was created with
+  PRUint32 mBackBufferUnreadLen; // amount of data currently in mBackBuffer
+
+
+
+};
+
+#endif // nsJPEGDecoder_h__

mozilla/modules/libpr0n/decoders/jpeg/nsJPEGFactory.cpp

@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation. Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation. All
+ * Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "nsIGenericFactory.h"
+#include "nsIModule.h"
+
+#include "nsJPEGDecoder.h"
+
+// objects that just require generic constructors
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsJPEGDecoder)
+
+static nsModuleComponentInfo components[] =
+{
+  { "ppm decoder",
+    NS_JPEGDECODER_CID,
+    "@mozilla.org/image/decoder;2?type=image/jpeg",
+    nsJPEGDecoderConstructor, },
+};
+
+NS_IMPL_NSGETMODULE("nsJPEGDecoderModule", components)
+

mozilla/modules/libpr0n/decoders/jpeg/win32.order

@@ -0,0 +1,16 @@
+?Release@nsJPEGDecoder@@UAGKXZ ; 172
+?AddRef@nsJPEGDecoder@@UAGKXZ ; 172
+?fill_input_buffer@@YAEPAUjpeg_decompress_struct@@@Z ; 126
+?skip_input_data@@YAXPAUjpeg_decompress_struct@@J@Z ; 109
+?WriteFrom@nsJPEGDecoder@@UAGIPAVnsIInputStream@@IPAI@Z ; 106
+?OutputScanlines@nsJPEGDecoder@@IAEHH@Z ; 93
+?init_source@@YAXPAUjpeg_decompress_struct@@@Z ; 86
+??1nsJPEGDecoder@@UAE@XZ ; 86
+?Close@nsJPEGDecoder@@UAGIXZ ; 86
+?term_source@@YAXPAUjpeg_decompress_struct@@@Z ; 86
+?Init@nsJPEGDecoder@@UAGIPAVimgIRequest@@@Z ; 86
+??0nsJPEGDecoder@@QAE@XZ ; 86
+?Flush@nsJPEGDecoder@@UAGIXZ ; 86
+?QueryInterface@nsJPEGDecoder@@UAGIABUnsID@@PAPAX@Z ; 86
+??_EnsJPEGDecoder@@UAEPAXI@Z ; 86
+_NSGetModule ; 1

mozilla/modules/libpr0n/decoders/makefile.win

@@ -0,0 +1,26 @@
+#
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#
+
+DEPTH=..\..\..
+
+DIRS = ppm gif png jpeg
+
+!include $(DEPTH)\config\rules.mak

mozilla/modules/libpr0n/decoders/png/Makefile.in

@@ -0,0 +1,42 @@
+#
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#
+
+DEPTH		= ../../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+MODULE		= imgpng
+LIBRARY_NAME	= imgpng
+IS_COMPONENT	= 1
+
+REQUIRES	= xpcom necko layout png gfx2 imglib2
+
+CPPSRCS		= nsPNGDecoder.cpp nsPNGFactory.cpp
+
+EXTRA_DSO_LDOPTS = $(PNG_LIBS) $(ZLIB_LIBS) \
+		$(MOZ_COMPONENT_LIBS) \
+		$(NULL)
+
+include $(topsrcdir)/config/rules.mk
+

mozilla/modules/libpr0n/decoders/png/makefile.win

@@ -0,0 +1,53 @@
+#!nmake
+# 
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#    Stuart Parmenter <pavlov@netscape.com>
+#
+
+DEPTH=..\..\..\..
+include <$(DEPTH)/config/config.mak>
+
+MODULE			= imgpng
+LIBRARY_NAME	= imgpng
+DLL			= $(OBJDIR)\$(LIBRARY_NAME).dll
+MAKE_OBJ_TYPE	= DLL
+
+OBJS	= \
+		.\$(OBJDIR)\nsPNGDecoder.obj \
+		.\$(OBJDIR)\nsPNGFactory.obj \
+		$(NULL)
+
+LLIBS=\
+	$(LIBNSPR) \
+	$(DIST)\lib\xpcom.lib \
+	$(DIST)\lib\png.lib \
+	$(DIST)\lib\zlib.lib \
+	$(DIST)\lib\gkgfxwin.lib \
+	$(NULL)
+
+include <$(DEPTH)\config\rules.mak>
+
+install:: $(DLL)
+	$(MAKE_INSTALL) .\$(OBJDIR)\$(LIBRARY_NAME).dll $(DIST)\bin\components
+	$(MAKE_INSTALL) .\$(OBJDIR)\$(LIBRARY_NAME).lib $(DIST)\lib
+
+clobber::
+	rm -f $(DIST)\bin\components\$(LIBRARY_NAME).dll
+	rm -f $(DIST)\lib\$(LIBRARY_NAME).lib

mozilla/modules/libpr0n/decoders/png/nsPNGDecoder.cpp

@@ -0,0 +1,553 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ *
+ */
+
+#include "nsPNGDecoder.h"
+
+#include "nsIInputStream.h"
+
+#include "nspr.h"
+
+#include "nsIComponentManager.h"
+
+#include "png.h"
+
+#include "nsIStreamObserver.h"
+
+#include "nsRect.h"
+
+#include "nsMemory.h"
+
+#include "imgIContainerObserver.h"
+
+// XXX we need to be sure to fire onStopDecode messages to mObserver in error cases.
+
+
+NS_IMPL_ISUPPORTS2(nsPNGDecoder, imgIDecoder, nsIOutputStream)
+
+
+nsPNGDecoder::nsPNGDecoder()
+{
+  NS_INIT_ISUPPORTS();
+
+  mPNG = nsnull;
+  mInfo = nsnull;
+  colorLine = 0;
+  alphaLine = 0;
+  interlacebuf = 0;
+}
+
+nsPNGDecoder::~nsPNGDecoder()
+{
+  if (colorLine)
+    nsMemory::Free(colorLine);
+  if (alphaLine)
+    nsMemory::Free(alphaLine);
+  if (interlacebuf)
+    nsMemory::Free(interlacebuf);
+}
+
+
+/** imgIDecoder methods **/
+
+/* void init (in imgIRequest aRequest); */
+NS_IMETHODIMP nsPNGDecoder::Init(imgIRequest *aRequest)
+{
+  mRequest = aRequest;
+  mObserver = do_QueryInterface(aRequest);  // we're holding 2 strong refs to the request.
+
+  aRequest->GetImage(getter_AddRefs(mImage));
+
+  /* do png init stuff */
+
+  /* Initialize the container's source image header. */
+  /* Always decode to 24 bit pixdepth */
+
+
+  mPNG = png_create_read_struct(PNG_LIBPNG_VER_STRING, 
+                                NULL, NULL, 
+                                NULL);
+  if (!mPNG) {
+    return NS_ERROR_FAILURE;
+  }
+
+  mInfo = png_create_info_struct(mPNG);
+  if (!mInfo) {
+    png_destroy_read_struct(&mPNG, NULL, NULL);
+    return NS_ERROR_FAILURE;
+  }
+
+  /* use ic as libpng "progressive pointer" (retrieve in callbacks) */
+  png_set_progressive_read_fn(mPNG, NS_STATIC_CAST(png_voidp, this), nsPNGDecoder::info_callback, nsPNGDecoder::row_callback, nsPNGDecoder::end_callback);
+
+  return NS_OK;
+}
+
+
+/* readonly attribute imgIRequest request; */
+NS_IMETHODIMP nsPNGDecoder::GetRequest(imgIRequest * *aRequest)
+{
+  *aRequest = mRequest;
+  NS_ADDREF(*aRequest);
+  return NS_OK;
+}
+
+
+
+
+
+
+/** nsIOutputStream methods **/
+
+/* void close (); */
+NS_IMETHODIMP nsPNGDecoder::Close()
+{
+  if (mPNG)
+    png_destroy_read_struct(&mPNG, mInfo ? &mInfo : NULL, NULL);
+
+  return NS_OK;
+}
+
+/* void flush (); */
+NS_IMETHODIMP nsPNGDecoder::Flush()
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* unsigned long write (in string buf, in unsigned long count); */
+NS_IMETHODIMP nsPNGDecoder::Write(const char *buf, PRUint32 count, PRUint32 *_retval)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+
+static NS_METHOD ReadDataOut(nsIInputStream* in,
+                             void* closure,
+                             const char* fromRawSegment,
+                             PRUint32 toOffset,
+                             PRUint32 count,
+                             PRUint32 *writeCount)
+{
+  nsPNGDecoder *decoder = NS_STATIC_CAST(nsPNGDecoder*, closure);
+
+  // we need to do the setjmp here otherwise bad things will happen
+  if (setjmp(decoder->mPNG->jmpbuf)) {
+    png_destroy_read_struct(&decoder->mPNG, &decoder->mInfo, NULL);
+    // is this NS_ERROR_FAILURE enough?
+
+    decoder->mRequest->Cancel(NS_BINDING_ABORTED); // XXX is this the correct error ?
+
+    return NS_ERROR_FAILURE;
+  }
+
+  *writeCount = decoder->ProcessData((unsigned char*)fromRawSegment, count);
+  return NS_OK;
+}
+
+PRUint32 nsPNGDecoder::ProcessData(unsigned char *data, PRUint32 count)
+{
+  png_process_data(mPNG, mInfo, data, count);
+
+  return count; // we always consume all the data
+}
+
+/* unsigned long writeFrom (in nsIInputStream inStr, in unsigned long count); */
+NS_IMETHODIMP nsPNGDecoder::WriteFrom(nsIInputStream *inStr, PRUint32 count, PRUint32 *_retval)
+{
+//  PRUint32 sourceOffset = *_retval;
+
+  inStr->ReadSegments(ReadDataOut, this, count, _retval);
+
+  return NS_OK;
+}
+
+/* [noscript] unsigned long writeSegments (in nsReadSegmentFun reader, in voidPtr closure, in unsigned long count); */
+NS_IMETHODIMP nsPNGDecoder::WriteSegments(nsReadSegmentFun reader, void * closure, PRUint32 count, PRUint32 *_retval)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* attribute boolean nonBlocking; */
+NS_IMETHODIMP nsPNGDecoder::GetNonBlocking(PRBool *aNonBlocking)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+NS_IMETHODIMP nsPNGDecoder::SetNonBlocking(PRBool aNonBlocking)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* attribute nsIOutputStreamObserver observer; */
+NS_IMETHODIMP nsPNGDecoder::GetObserver(nsIOutputStreamObserver * *aObserver)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+NS_IMETHODIMP nsPNGDecoder::SetObserver(nsIOutputStreamObserver * aObserver)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+
+
+
+
+
+
+
+
+
+
+void
+nsPNGDecoder::info_callback(png_structp png_ptr, png_infop info_ptr)
+{
+/*  int number_passes;   NOT USED  */
+  png_uint_32 width, height;
+  int bit_depth, color_type, interlace_type, compression_type, filter_type;
+  int channels;
+  double LUT_exponent, CRT_exponent = 2.2, display_exponent, aGamma;
+
+  png_bytep trans=NULL;
+  int num_trans =0;
+
+  /* always decode to 24-bit RGB or 32-bit RGBA  */
+  png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
+               &interlace_type, &compression_type, &filter_type);
+
+  if (color_type == PNG_COLOR_TYPE_PALETTE)
+    png_set_expand(png_ptr);
+
+  if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
+    png_set_expand(png_ptr);
+
+  if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) {
+    png_get_tRNS(png_ptr, info_ptr, &trans, &num_trans, NULL);
+    png_set_expand(png_ptr);
+  }
+
+  if (bit_depth == 16)
+    png_set_strip_16(png_ptr);
+
+  if (color_type == PNG_COLOR_TYPE_GRAY ||
+      color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
+      png_set_gray_to_rgb(png_ptr);
+
+
+#ifdef XP_PC
+  // windows likes BGR
+  png_set_bgr(png_ptr);
+#endif
+
+  /* set up gamma correction for Mac, Unix and (Win32 and everything else)
+   * using educated guesses for display-system exponents; do preferences
+   * later */
+
+#if defined(XP_MAC)
+  LUT_exponent = 1.8 / 2.61;
+#elif defined(XP_UNIX)
+# if defined(__sgi)
+  LUT_exponent = 1.0 / 1.7;   /* typical default for SGI console */
+# elif defined(NeXT)
+  LUT_exponent = 1.0 / 2.2;   /* typical default for NeXT cube */
+# else
+  LUT_exponent = 1.0;         /* default for most other Unix workstations */
+# endif
+#else
+  LUT_exponent = 1.0;         /* virtually all PCs and most other systems */
+#endif
+
+  /* (alternatively, could check for SCREEN_GAMMA environment variable) */
+  display_exponent = LUT_exponent * CRT_exponent;
+
+  if (png_get_gAMA(png_ptr, info_ptr, &aGamma))
+      png_set_gamma(png_ptr, display_exponent, aGamma);
+  else
+      png_set_gamma(png_ptr, display_exponent, 0.45455);
+
+  /* let libpng expand interlaced images */
+  if (interlace_type == PNG_INTERLACE_ADAM7) {
+      /* number_passes = */
+      png_set_interlace_handling(png_ptr);
+  }
+
+  /* now all of those things we set above are used to update various struct
+   * members and whatnot, after which we can get channels, rowbytes, etc. */
+  png_read_update_info(png_ptr, info_ptr);
+  channels = png_get_channels(png_ptr, info_ptr);
+  PR_ASSERT(channels == 3 || channels == 4);
+
+  /*---------------------------------------------------------------*/
+  /* copy PNG info into imagelib structs (formerly png_set_dims()) */
+  /*---------------------------------------------------------------*/
+
+  PRInt32 alpha_bits = 1;
+
+  if (channels > 3) {
+    /* check if alpha is coming from a tRNS chunk and is binary */
+    if (num_trans) {
+      /* if it's not a indexed color image, tRNS means binary */
+      if (color_type == PNG_COLOR_TYPE_PALETTE) {
+        for (int i=0; i<num_trans; i++) {
+          if ((trans[i] != 0) && (trans[i] != 255)) {
+            alpha_bits = 8;
+            break;
+          }
+        }
+      }
+    } else {
+      alpha_bits = 8;
+    }
+  }
+
+  nsPNGDecoder *decoder = NS_STATIC_CAST(nsPNGDecoder*, png_get_progressive_ptr(png_ptr));
+
+  if (decoder->mObserver)
+    decoder->mObserver->OnStartDecode(nsnull, nsnull);
+
+  // since the png is only 1 frame, initalize the container to the width and height of the frame
+  decoder->mImage->Init(width, height, decoder->mObserver);
+
+  if (decoder->mObserver)
+    decoder->mObserver->OnStartContainer(nsnull, nsnull, decoder->mImage);
+
+  decoder->mFrame = do_CreateInstance("@mozilla.org/gfx/image/frame;2");
+#if 0
+  // XXX should we longjmp to png_ptr->jumpbuf here if we failed?
+  if (!decoder->mFrame)
+    return NS_ERROR_FAILURE;
+#endif
+
+  gfx_format format;
+
+  if (channels == 3) {
+    format = gfxIFormats::RGB;
+  } else if (channels > 3) {
+    if (alpha_bits == 8) {
+      decoder->mImage->GetPreferredAlphaChannelFormat(&format);
+    } else if (alpha_bits == 1) {
+      format = gfxIFormats::RGB_A1;
+    }
+  }
+
+#ifdef XP_PC
+  // XXX this works...
+  format += 1; // RGB to BGR
+#endif
+
+  // then initalize the frame and append it to the container
+  decoder->mFrame->Init(0, 0, width, height, format);
+
+  decoder->mImage->AppendFrame(decoder->mFrame);
+
+  if (decoder->mObserver)
+    decoder->mObserver->OnStartFrame(nsnull, nsnull, decoder->mFrame);
+
+  PRUint32 bpr, abpr;
+  decoder->mFrame->GetImageBytesPerRow(&bpr);
+  decoder->mFrame->GetAlphaBytesPerRow(&abpr);
+  decoder->colorLine = (PRUint8 *)nsMemory::Alloc(bpr);
+  if (channels > 3)
+    decoder->alphaLine = (PRUint8 *)nsMemory::Alloc(abpr);
+
+  if (interlace_type == PNG_INTERLACE_ADAM7) {
+    decoder->interlacebuf = (PRUint8 *)nsMemory::Alloc(channels*width*height);
+    decoder->ibpr = channels*width;
+    if (!decoder->interlacebuf) {
+//      return NS_ERROR_FAILURE;
+    }            
+  }
+
+  return;
+}
+
+
+
+
+
+void
+nsPNGDecoder::row_callback(png_structp png_ptr, png_bytep new_row,
+                           png_uint_32 row_num, int pass)
+{
+  /* libpng comments:
+   *
+   * this function is called for every row in the image.  If the
+   * image is interlacing, and you turned on the interlace handler,
+   * this function will be called for every row in every pass.
+   * Some of these rows will not be changed from the previous pass.
+   * When the row is not changed, the new_row variable will be NULL.
+   * The rows and passes are called in order, so you don't really
+   * need the row_num and pass, but I'm supplying them because it
+   * may make your life easier.
+   *
+   * For the non-NULL rows of interlaced images, you must call
+   * png_progressive_combine_row() passing in the row and the
+   * old row.  You can call this function for NULL rows (it will
+   * just return) and for non-interlaced images (it just does the
+   * memcpy for you) if it will make the code easier.  Thus, you
+   * can just do this for all cases:
+   *
+   *    png_progressive_combine_row(png_ptr, old_row, new_row);
+   *
+   * where old_row is what was displayed for previous rows.  Note
+   * that the first pass (pass == 0 really) will completely cover
+   * the old row, so the rows do not have to be initialized.  After
+   * the first pass (and only for interlaced images), you will have
+   * to pass the current row, and the function will combine the
+   * old row and the new row.
+   */
+  nsPNGDecoder *decoder = NS_STATIC_CAST(nsPNGDecoder*, png_get_progressive_ptr(png_ptr));
+
+  PRUint32 bpr, abpr;
+  decoder->mFrame->GetImageBytesPerRow(&bpr);
+  decoder->mFrame->GetAlphaBytesPerRow(&abpr);
+
+  png_bytep line;
+  if (decoder->interlacebuf) {
+    line = decoder->interlacebuf+(row_num*decoder->ibpr);
+    png_progressive_combine_row(png_ptr, line, new_row);
+  }
+  else
+    line = new_row;
+
+  if (new_row) {
+    nscoord width;
+    decoder->mFrame->GetWidth(&width);
+    PRUint32 iwidth = width;
+
+    gfx_format format;
+    decoder->mFrame->GetFormat(&format);
+    PRUint8 *aptr, *cptr;
+
+// The mac specific ifdefs in the code below are there to make sure we
+// always fill in 4 byte pixels right now, which is what the mac always
+// allocates for its pixel buffers in true color mode. This will change
+// when we start storing images with color palettes when they don't need
+// true color support (GIFs).
+    switch (format) {
+    case gfxIFormats::RGB:
+    case gfxIFormats::BGR:
+#ifdef XP_MAC
+        cptr = decoder->colorLine;
+        for (PRUint32 x=0; x<iwidth; x++) {
+          *cptr++ = 0;
+          *cptr++ = *line++;
+          *cptr++ = *line++;
+          *cptr++ = *line++;
+        }
+        decoder->mFrame->SetImageData(decoder->colorLine, bpr, row_num*bpr);
+#else
+        decoder->mFrame->SetImageData((PRUint8*)line, bpr, row_num*bpr);
+#endif
+      break;
+    case gfxIFormats::RGB_A1:
+    case gfxIFormats::BGR_A1:
+      {
+        cptr = decoder->colorLine;
+        aptr = decoder->alphaLine;
+        memset(aptr, 0, abpr);
+        for (PRUint32 x=0; x<iwidth; x++) {
+#ifdef XP_MAC
+          *cptr++ = 0;
+#endif
+          *cptr++ = *line++;
+          *cptr++ = *line++;
+          *cptr++ = *line++;
+          if (*line++) {
+            aptr[x>>3] |= 1<<(7-x&0x7);
+          }
+        }
+        decoder->mFrame->SetImageData(decoder->colorLine, bpr, row_num*bpr);
+        decoder->mFrame->SetAlphaData(decoder->alphaLine, abpr, row_num*abpr);
+      }
+      break;
+    case gfxIFormats::RGB_A8:
+    case gfxIFormats::BGR_A8:
+      {
+        cptr = decoder->colorLine;
+        aptr = decoder->alphaLine;
+        for (PRUint32 x=0; x<iwidth; x++) {
+#ifdef XP_MAC
+          *cptr++ = 0;
+#endif
+          *cptr++ = *line++;
+          *cptr++ = *line++;
+          *cptr++ = *line++;
+          *aptr++ = *line++;
+        }
+        decoder->mFrame->SetImageData(decoder->colorLine, bpr, row_num*bpr);
+        decoder->mFrame->SetAlphaData(decoder->alphaLine, abpr, row_num*abpr);
+      }
+      break;
+    case gfxIFormats::RGBA:
+    case gfxIFormats::BGRA:
+#ifdef XP_MAC
+      {
+        cptr = decoder->colorLine;
+        aptr = decoder->alphaLine;
+        for (PRUint32 x=0; x<iwidth; x++) {
+          *cptr++ = 0;
+          *cptr++ = *line++;
+          *cptr++ = *line++;
+          *cptr++ = *line++;
+          *aptr++ = *line++;
+        }
+        decoder->mFrame->SetImageData(decoder->colorLine, bpr, row_num*bpr);
+        decoder->mFrame->SetAlphaData(decoder->alphaLine, abpr, row_num*abpr);
+      }
+#else
+      decoder->mFrame->SetImageData(line, bpr, row_num*bpr);
+#endif
+      break;
+    }
+
+    nsRect r(0, row_num, width, 1);
+    decoder->mObserver->OnDataAvailable(nsnull, nsnull, decoder->mFrame, &r);
+  }
+}
+
+
+
+void
+nsPNGDecoder::end_callback(png_structp png_ptr, png_infop info_ptr)
+{
+  /* libpng comments:
+   *
+   * this function is called when the whole image has been read,
+   * including any chunks after the image (up to and including
+   * the IEND).  You will usually have the same info chunk as you
+   * had in the header, although some data may have been added
+   * to the comments and time fields.
+   *
+   * Most people won't do much here, perhaps setting a flag that
+   * marks the image as finished.
+   */
+
+  nsPNGDecoder *decoder = NS_STATIC_CAST(nsPNGDecoder*, png_get_progressive_ptr(png_ptr));
+
+  if (decoder->mObserver) {
+    decoder->mObserver->OnStopFrame(nsnull, nsnull, decoder->mFrame);
+    decoder->mObserver->OnStopContainer(nsnull, nsnull, decoder->mImage);
+    decoder->mObserver->OnStopDecode(nsnull, nsnull, NS_OK, nsnull);
+  }
+
+}
+

mozilla/modules/libpr0n/decoders/png/nsPNGDecoder.h

@@ -0,0 +1,82 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#ifndef nsPNGDecoder_h__
+#define nsPNGDecoder_h__
+
+#include "imgIDecoder.h"
+
+#include "imgIContainer.h"
+#include "imgIDecoderObserver.h"
+#include "gfxIImageFrame.h"
+#include "imgIRequest.h"
+
+
+#include "nsCOMPtr.h"
+
+#include "png.h"
+
+#define NS_PNGDECODER_CID \
+{ /* 36fa00c2-1dd2-11b2-be07-d16eeb4c50ed */         \
+     0x36fa00c2,                                     \
+     0x1dd2,                                         \
+     0x11b2,                                         \
+    {0xbe, 0x07, 0xd1, 0x6e, 0xeb, 0x4c, 0x50, 0xed} \
+}
+
+class nsPNGDecoder : public imgIDecoder
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_IMGIDECODER
+  NS_DECL_NSIOUTPUTSTREAM
+
+  nsPNGDecoder();
+  virtual ~nsPNGDecoder();
+
+PR_STATIC_CALLBACK(void)
+info_callback(png_structp png_ptr, png_infop info_ptr);
+PR_STATIC_CALLBACK(void)
+row_callback(png_structp png_ptr, png_bytep new_row,
+             png_uint_32 row_num, int pass);
+
+PR_STATIC_CALLBACK(void)
+end_callback(png_structp png_ptr, png_infop info_ptr);
+
+  inline PRUint32 ProcessData(unsigned char *data, PRUint32 count);
+
+
+public:
+  nsCOMPtr<imgIContainer> mImage;
+  nsCOMPtr<gfxIImageFrame> mFrame;
+  nsCOMPtr<imgIRequest> mRequest;
+  nsCOMPtr<imgIDecoderObserver> mObserver; // this is just qi'd from mRequest for speed
+
+  png_structp mPNG;
+  png_infop mInfo;
+  PRUint8 *colorLine, *alphaLine;
+  PRUint8 *interlacebuf;
+  PRUint32 ibpr;
+};
+
+#endif // nsPNGDecoder_h__

mozilla/modules/libpr0n/decoders/png/nsPNGFactory.cpp

@@ -0,0 +1,46 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation. Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation. All
+ * Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "nsIGenericFactory.h"
+#include "nsIModule.h"
+
+#include "nsPNGDecoder.h"
+
+// objects that just require generic constructors
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsPNGDecoder)
+
+static nsModuleComponentInfo components[] =
+{
+  { "PNG decoder",
+    NS_PNGDECODER_CID,
+    "@mozilla.org/image/decoder;2?type=image/png",
+    nsPNGDecoderConstructor, },
+  { "PNG decoder",
+    NS_PNGDECODER_CID,
+    "@mozilla.org/image/decoder;2?type=image/x-png",
+    nsPNGDecoderConstructor, },
+};
+
+NS_IMPL_NSGETMODULE("nsPNGDecoderModule", components)
+

mozilla/modules/libpr0n/decoders/ppm/Makefile.in

@@ -0,0 +1,42 @@
+#
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#
+
+DEPTH		= ../../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+MODULE		= imgppm
+LIBRARY_NAME	= imgppm
+IS_COMPONENT	= 1
+
+REQUIRES	= xpcom layout necko gfx2 imglib2
+
+CPPSRCS		= nsPPMDecoder.cpp nsPPMFactory.cpp
+
+EXTRA_DSO_LDOPTS = \
+		$(MOZ_COMPONENT_LIBS) \
+		$(NULL)
+
+include $(topsrcdir)/config/rules.mk
+

mozilla/modules/libpr0n/decoders/ppm/makefile.win

@@ -0,0 +1,51 @@
+#!nmake
+# 
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#    Stuart Parmenter <pavlov@netscape.com>
+#
+
+DEPTH=..\..\..\..
+include <$(DEPTH)/config/config.mak>
+
+MODULE			= imgppm
+LIBRARY_NAME	= imgppm
+DLL			= $(OBJDIR)\$(LIBRARY_NAME).dll
+MAKE_OBJ_TYPE	= DLL
+
+OBJS	= \
+		.\$(OBJDIR)\nsPPMDecoder.obj \
+		.\$(OBJDIR)\nsPPMFactory.obj \
+		$(NULL)
+
+LLIBS=\
+	$(LIBNSPR) \
+	$(DIST)\lib\xpcom.lib \
+	$(DIST)\lib\gkgfxwin.lib \
+	$(NULL)
+
+include <$(DEPTH)\config\rules.mak>
+
+install:: $(DLL)
+	$(MAKE_INSTALL) .\$(OBJDIR)\$(LIBRARY_NAME).dll $(DIST)\bin\components
+	$(MAKE_INSTALL) .\$(OBJDIR)\$(LIBRARY_NAME).lib $(DIST)\lib
+
+clobber::
+	rm -f $(DIST)\bin\components\$(LIBRARY_NAME).dll
+	rm -f $(DIST)\lib\$(LIBRARY_NAME).lib

mozilla/modules/libpr0n/decoders/ppm/nsPPMDecoder.cpp

@@ -0,0 +1,305 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ *
+ */
+
+#include "nsPPMDecoder.h"
+
+#include "nsIInputStream.h"
+#include "imgIContainer.h"
+#include "imgIContainerObserver.h"
+
+#include "nspr.h"
+
+#include "nsIComponentManager.h"
+
+#include "nsRect.h"
+
+NS_IMPL_ISUPPORTS2(nsPPMDecoder, imgIDecoder, nsIOutputStream)
+
+
+nsPPMDecoder::nsPPMDecoder()
+{
+  NS_INIT_ISUPPORTS();
+  mDataReceived = 0;
+  mDataWritten = 0;
+
+  mDataLeft = 0;
+  mPrevData = nsnull;
+}
+
+nsPPMDecoder::~nsPPMDecoder()
+{
+
+}
+
+
+/** imgIDecoder methods **/
+
+/* void init (in imgIRequest aRequest); */
+NS_IMETHODIMP nsPPMDecoder::Init(imgIRequest *aRequest)
+{
+  mRequest = aRequest;
+
+  mObserver = do_QueryInterface(aRequest);  // we're holding 2 strong refs to the request.
+
+  aRequest->GetImage(getter_AddRefs(mImage));
+
+  mFrame = do_CreateInstance("@mozilla.org/gfx/image/frame;2");
+  if (!mFrame)
+    return NS_ERROR_FAILURE;
+
+  return NS_OK;
+}
+
+/* readonly attribute imgIRequest request; */
+NS_IMETHODIMP nsPPMDecoder::GetRequest(imgIRequest * *aRequest)
+{
+  *aRequest = mRequest;
+  NS_ADDREF(*aRequest);
+  return NS_OK;
+}
+
+
+
+
+
+
+/** nsIOutputStream methods **/
+
+/* void close (); */
+NS_IMETHODIMP nsPPMDecoder::Close()
+{
+  if (mObserver) {
+    mObserver->OnStopFrame(nsnull, nsnull, mFrame);
+    mObserver->OnStopContainer(nsnull, nsnull, mImage);
+    mObserver->OnStopDecode(nsnull, nsnull, NS_OK, nsnull);
+  }
+  
+  return NS_OK;
+}
+
+/* void flush (); */
+NS_IMETHODIMP nsPPMDecoder::Flush()
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* unsigned long write (in string buf, in unsigned long count); */
+NS_IMETHODIMP nsPPMDecoder::Write(const char *buf, PRUint32 count, PRUint32 *_retval)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+static char *__itoa(int n)
+{
+	char *s;
+	int i, j, sign, tmp;
+	
+	/* check sign and convert to positive to stringify numbers */
+	if ( (sign = n) < 0)
+		n = -n;
+	i = 0;
+	s = (char*) malloc(sizeof(char));
+	
+	/* grow string as needed to add numbers from powers of 10 
+     * down till none left 
+     */
+	do
+	{
+		s = (char*) realloc(s, (i+1)*sizeof(char));
+		s[i++] = n % 10 + '0';  /* '0' or 30 is where ASCII numbers start */
+		s[i] = '\0';
+	}
+	while( (n /= 10) > 0);	
+	
+	/* tack on minus sign if we found earlier that this was negative */
+	if (sign < 0)
+	{
+		s = (char*) realloc(s, (i+1)*sizeof(char));
+		s[i++] = '-';
+	}
+	s[i] = '\0';
+	
+	/* pop numbers (and sign) off of string to push back into right direction */
+	for (i = 0, j = strlen(s) - 1; i < j; i++, j--)
+	{
+		tmp = s[i];
+		s[i] = s[j];
+		s[j] = tmp;
+	}
+	
+	return s;
+}
+
+
+/* unsigned long writeFrom (in nsIInputStream inStr, in unsigned long count); */
+NS_IMETHODIMP nsPPMDecoder::WriteFrom(nsIInputStream *inStr, PRUint32 count, PRUint32 *_retval)
+{
+  nsresult rv;
+
+  char *buf = (char *)PR_Malloc(count + mDataLeft);
+  if (!buf)
+    return NS_ERROR_OUT_OF_MEMORY; /* we couldn't allocate the object */
+
+  
+  // read the data from the input stram...
+  PRUint32 readLen;
+  rv = inStr->Read(buf+mDataLeft, count, &readLen);
+
+  PRUint32 dataLen = readLen + mDataLeft;
+
+  if (mPrevData) {
+    strncpy(buf, mPrevData, mDataLeft);
+    PR_Free(mPrevData);
+    mPrevData = nsnull;
+    mDataLeft = 0;
+  }
+
+  char *data = buf;
+
+  if (NS_FAILED(rv)) return rv;
+
+  if (mDataReceived == 0) {
+
+    mObserver->OnStartDecode(nsnull, nsnull);
+
+    // Check the magic number
+    char type;
+    if ((sscanf(data, "P%c\n", &type) !=1) || (type != '6')) {
+      return NS_ERROR_FAILURE;
+    }
+    int i = 3;
+    data += i;
+
+#if 0
+    // XXX
+    // Ignore comments
+    while ((input = fgetc(f)) == '#')
+      fgets(junk, 512, f);
+    ungetc(input, f);
+#endif
+
+    // Read size
+    int w, h, mcv;
+
+    if (sscanf(data, "%d %d\n%d\n", &w, &h, &mcv) != 3) {
+      return NS_ERROR_FAILURE;
+    }
+    char *ws = __itoa(w), *hs = __itoa(h), *mcvs = __itoa(mcv);
+    int j = strlen(ws) + strlen(hs) + strlen(mcvs) + 3;
+    data += j;
+//    free(ws);
+//    free(hs);
+//    free(mcvs);
+
+    readLen -= i + j;
+    dataLen = readLen; // since this is the first pass, we don't have any data waiting that we need to keep track of
+
+    mImage->Init(w, h, mObserver);
+    if (mObserver)
+      mObserver->OnStartContainer(nsnull, nsnull, mImage);
+
+    mFrame->Init(0, 0, w, h, gfxIFormats::RGB);
+    mImage->AppendFrame(mFrame);
+    if (mObserver)
+      mObserver->OnStartFrame(nsnull, nsnull, mFrame);
+  }
+
+  PRUint32 bpr;
+  nscoord width;
+  mFrame->GetImageBytesPerRow(&bpr);
+  mFrame->GetWidth(&width);
+
+  // XXX ceil?
+  PRUint32 real_bpr = width * 3;
+  
+  PRUint32 i = 0;
+  PRUint32 rownum = mDataWritten / real_bpr;  // XXX this better not have a decimal
+  
+  PRUint32 wroteLen = 0;
+
+  if (readLen > real_bpr) {
+
+    do {
+      PRUint8 *line = (PRUint8*)data + i*real_bpr;
+      mFrame->SetImageData(line, real_bpr, (rownum++)*bpr);
+
+      nsRect r(0, rownum, width, 1);
+      mObserver->OnDataAvailable(nsnull, nsnull, mFrame, &r);
+
+
+      wroteLen += real_bpr ;
+      i++;
+    } while(dataLen >= real_bpr * (i+1));
+
+  }
+  
+  mDataReceived += readLen;  // don't double count previous data that is in 'dataLen'
+  mDataWritten += wroteLen;
+
+  PRUint32 dataLeft = dataLen - wroteLen;
+
+  if (dataLeft > 0) {
+    if (mPrevData) {
+      mPrevData = (char *)PR_Realloc(mPrevData, mDataLeft + dataLeft);
+      strncpy(mPrevData + mDataLeft, data+wroteLen, dataLeft);
+      mDataLeft += dataLeft;
+
+    } else {
+      mDataLeft = dataLeft;
+      mPrevData = (char *)PR_Malloc(mDataLeft);
+      strncpy(mPrevData, data+wroteLen, mDataLeft);
+    }
+  }
+
+  PR_FREEIF(buf);
+
+  return NS_OK;
+}
+
+/* [noscript] unsigned long writeSegments (in nsReadSegmentFun reader, in voidPtr closure, in unsigned long count); */
+NS_IMETHODIMP nsPPMDecoder::WriteSegments(nsReadSegmentFun reader, void * closure, PRUint32 count, PRUint32 *_retval)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* attribute boolean nonBlocking; */
+NS_IMETHODIMP nsPPMDecoder::GetNonBlocking(PRBool *aNonBlocking)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+NS_IMETHODIMP nsPPMDecoder::SetNonBlocking(PRBool aNonBlocking)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* attribute nsIOutputStreamObserver observer; */
+NS_IMETHODIMP nsPPMDecoder::GetObserver(nsIOutputStreamObserver * *aObserver)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+NS_IMETHODIMP nsPPMDecoder::SetObserver(nsIOutputStreamObserver * aObserver)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+

mozilla/modules/libpr0n/decoders/ppm/nsPPMDecoder.h

@@ -0,0 +1,67 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#ifndef nsPPMDecoder_h__
+#define nsPPMDecoder_h__
+
+#include "imgIDecoder.h"
+
+#include "nsCOMPtr.h"
+
+#include "imgIContainer.h"
+#include "imgIDecoderObserver.h"
+#include "gfxIImageFrame.h"
+#include "imgIRequest.h"
+
+#define NS_PPMDECODER_CID \
+{ /* e90bfa06-1dd1-11b2-8217-f38fe5d431a2 */         \
+     0xe90bfa06,                                     \
+     0x1dd1,                                         \
+     0x11b2,                                         \
+    {0x82, 0x17, 0xf3, 0x8f, 0xe5, 0xd4, 0x31, 0xa2} \
+}
+
+class nsPPMDecoder : public imgIDecoder
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_IMGIDECODER
+  NS_DECL_NSIOUTPUTSTREAM
+
+  nsPPMDecoder();
+  virtual ~nsPPMDecoder();
+
+private:
+  nsCOMPtr<imgIContainer> mImage;
+  nsCOMPtr<gfxIImageFrame> mFrame;
+  nsCOMPtr<imgIRequest> mRequest;
+  nsCOMPtr<imgIDecoderObserver> mObserver; // this is just qi'd from mRequest for speed
+
+  PRUint32 mDataReceived;
+  PRUint32 mDataWritten;
+
+  PRUint32 mDataLeft;
+  char *mPrevData;
+};
+
+#endif // nsPPMDecoder_h__

mozilla/modules/libpr0n/decoders/ppm/nsPPMFactory.cpp

@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation. Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation. All
+ * Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "nsIGenericFactory.h"
+#include "nsIModule.h"
+
+#include "nsPPMDecoder.h"
+
+// objects that just require generic constructors
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsPPMDecoder)
+
+static nsModuleComponentInfo components[] =
+{
+  { "ppm decoder",
+    NS_PPMDECODER_CID,
+    "@mozilla.org/image/decoder;2?type=image/x-portable-pixmap",
+    nsPPMDecoderConstructor, },
+};
+
+NS_IMPL_NSGETMODULE("nsPPMDecoderModule", components)
+

mozilla/modules/libpr0n/makefile.win

@@ -0,0 +1,25 @@
+#
+# The contents of this file are subject to the Netscape Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/NPL/
+#
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+#
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation. All
+# Rights Reserved.
+#
+# Contributor(s): 
+
+DEPTH=..\.. 
+
+DIRS = public src decoders
+
+!include $(DEPTH)\config\rules.mak

mozilla/modules/libpr0n/public/ImageLogging.h

@@ -0,0 +1,111 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "prlog.h"
+
+#include "nsString.h"
+
+#if defined(PR_LOGGING)
+extern PRLogModuleInfo *gImgLog;
+
+class LogScope {
+public:
+  LogScope(PRLogModuleInfo *aLog, void *from, const nsAReadableCString &fn) :
+    mLog(aLog), mFrom(from), mFunc(fn)
+  {
+    PR_LOG(mLog, PR_LOG_DEBUG, ("[this=%p] %s {ENTER}\n",
+                                   mFrom, mFunc.get()));
+  }
+
+  /* const char * constructor */
+  LogScope(PRLogModuleInfo *aLog, void *from, const nsAReadableCString &fn,
+           const nsLiteralCString &paramName, const char *paramValue) :
+    mLog(aLog), mFrom(from), mFunc(fn)
+  {
+    PR_LOG(mLog, PR_LOG_DEBUG, ("[this=%p] %s (%s=\"%s\") {ENTER}\n",
+                                   mFrom, mFunc.get(),
+                                   paramName.get(),
+                                   paramValue));
+  }
+
+  /* void ptr constructor */
+  LogScope(PRLogModuleInfo *aLog, void *from, const nsAReadableCString &fn,
+           const nsLiteralCString &paramName, const void *paramValue) :
+    mLog(aLog), mFrom(from), mFunc(fn)
+  {
+    PR_LOG(mLog, PR_LOG_DEBUG, ("[this=%p] %s (%s=%p) {ENTER}\n",
+                                   mFrom, mFunc.get(),
+                                   paramName.get(),
+                                   paramValue));
+  }
+
+  /* PRInt32 constructor */
+  LogScope(PRLogModuleInfo *aLog, void *from, const nsAReadableCString &fn,
+           const nsLiteralCString &paramName, PRInt32 paramValue) :
+    mLog(aLog), mFrom(from), mFunc(fn)
+  {
+    PR_LOG(mLog, PR_LOG_DEBUG, ("[this=%p] %s (%s=\"%d\") {ENTER}\n",
+                                   mFrom, mFunc.get(),
+                                   paramName.get(),
+                                   paramValue));
+  }
+
+  /* PRUint32 constructor */
+  LogScope(PRLogModuleInfo *aLog, void *from, const nsAReadableCString &fn,
+           const nsLiteralCString &paramName, PRUint32 paramValue) :
+    mLog(aLog), mFrom(from), mFunc(fn)
+  {
+    PR_LOG(mLog, PR_LOG_DEBUG, ("[this=%p] %s (%s=\"%d\") {ENTER}\n",
+                                   mFrom, mFunc.get(),
+                                   paramName.get(),
+                                   paramValue));
+  }
+
+
+  ~LogScope() {
+    PR_LOG(mLog, PR_LOG_DEBUG, ("[this=%p] %s {EXIT}\n",
+                                   mFrom, mFunc.get()));
+  }
+
+private:
+  PRLogModuleInfo *mLog;
+  void *mFrom;
+  nsCAutoString mFunc;
+};
+
+
+#define LOG_SCOPE(l, s) \
+  LogScope LOG_SCOPE_TMP_VAR ##__LINE__ (l,                            \
+                                         NS_STATIC_CAST(void *, this), \
+                                         NS_LITERAL_CSTRING(s))
+
+#define LOG_SCOPE_WITH_PARAM(l, s, pn, pv) \
+  LogScope LOG_SCOPE_TMP_VAR ##__LINE__ (l,                            \
+                                         NS_STATIC_CAST(void *, this), \
+                                         NS_LITERAL_CSTRING(s),        \
+                                         NS_LITERAL_CSTRING(pn), pv)
+
+#else
+#define LOG_SCOPE(l, s)
+#define LOG_SCOPE_WITH_PARAM(l, s, pn, pv)
+#endif

mozilla/modules/libpr0n/public/MANIFEST

@@ -0,0 +1 @@
+ImageLogging.h 

mozilla/modules/libpr0n/public/MANIFEST_IDL

@@ -0,0 +1,6 @@
+imgIContainer.idl
+imgIContainerObserver.idl
+imgIDecoder.idl
+imgIDecoderObserver.idl
+imgILoader.idl
+imgIRequest.idl

mozilla/modules/libpr0n/public/Makefile.in

@@ -0,0 +1,41 @@
+#
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#
+
+DEPTH		= ../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+MODULE		= imglib2
+
+EXPORTS		= ImageLogging.h
+
+XPIDLSRCS	= imgIContainer.idl         \
+						imgIContainerObserver.idl \
+						imgIDecoder.idl           \
+						imgIDecoderObserver.idl	  \
+						imgILoader.idl            \
+						imgIRequest.idl
+
+include $(topsrcdir)/config/rules.mk
+

mozilla/modules/libpr0n/public/imgIContainer.idl

@@ -0,0 +1,109 @@
+/** -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation. Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation. All
+ * Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "nsISupports.idl"
+#include "gfxtypes.idl"
+#include "gfxIFormats.idl"
+
+interface gfxIImageFrame;
+interface nsIEnumerator;
+interface imgIContainerObserver;
+
+/**
+ * gfxIImageContainer interface
+ *
+ * @author Stuart Parmenter <pavlov@netscape.com>
+ * @version 0.1
+ * @see "gfx2"
+ */
+[scriptable, uuid(5e8405a4-1dd2-11b2-8385-bc8e3446cad3)]
+interface imgIContainer : nsISupports
+{
+  /**
+   * Create a new \a aWidth x \a aHeight sized image container.
+   *
+   * @param aWidth The width of the container in which all the
+   *               gfxIImageFrame children will fit.
+   * @param aHeight The height of the container in which all the
+   *                gfxIImageFrame children will fit.
+   * @param aObserver Observer to send animation notifications to.
+   */
+  void init(in nscoord aWidth,
+            in nscoord aHeight,
+            in imgIContainerObserver aObserver);
+
+
+  /* this should probably be on the device context (or equiv) */
+  readonly attribute gfx_format preferredAlphaChannelFormat;
+
+  /**
+   * The width of the container rectangle.
+   */
+  readonly attribute nscoord width;
+
+  /**
+   * The height of the container rectangle.
+   */
+  readonly attribute nscoord height;
+
+
+  /**
+   * Get the current frame that would be drawn if the image was to be drawn now
+   */
+  readonly attribute gfxIImageFrame currentFrame;
+
+
+  readonly attribute unsigned long numFrames;
+
+  gfxIImageFrame getFrameAt(in unsigned long index);
+
+  /**
+   * Adds \a item to the end of the list of frames.
+   * @param item frame to add.
+   */
+  void appendFrame(in gfxIImageFrame item);
+
+  void removeFrame(in gfxIImageFrame item);
+
+  /* notification when the current frame is done decoding */
+  void endFrameDecode(in unsigned long framenumber, in unsigned long timeout);
+  
+  /* notification that the entire image has been decoded */
+  void decodingComplete();
+  
+  nsIEnumerator enumerate();
+
+  void clear();
+
+  void startAnimation();
+
+  void stopAnimation();
+
+  /* animation stuff */
+
+  /**
+   * number of times to loop the image.
+   * @note -1 means forever.
+   */
+  attribute long loopCount;
+};

mozilla/modules/libpr0n/public/imgIContainerObserver.idl

@@ -0,0 +1,46 @@
+/** -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation. Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation. All
+ * Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "nsISupports.idl"
+#include "gfxtypes.idl"
+
+%{C++
+#include "nsRect.h"
+%}
+
+interface imgIContainer;
+
+interface gfxIImageFrame;
+
+/**
+ * imgIContainerObserver interface
+ *
+ * @author Stuart Parmenter <pavlov@netscape.com>
+ * @version 0.1
+ */
+[uuid(153f1518-1dd2-11b2-b9cd-b16eb63e0471)]
+interface imgIContainerObserver : nsISupports
+{
+  [noscript] void frameChanged(in imgIContainer aContainer, in nsISupports aCX,
+                               in gfxIImageFrame aFrame, in nsRect aDirtyRect);
+};

mozilla/modules/libpr0n/public/imgIDecoder.idl

@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "nsISupports.idl"
+#include "nsIOutputStream.idl"
+#include "gfxtypes.idl"
+
+interface imgIRequest;
+
+/**
+ * imgIDecoder interface
+ *
+ * @author Stuart Parmenter <pavlov@netscape.com>
+ * @version 0.1
+ * @see imagelib2
+ */
+[scriptable, uuid(9eebf43a-1dd1-11b2-953e-f1782f4cbad3)]
+interface imgIDecoder : nsIOutputStream
+{
+  /**
+   * Initalize an image decoder.
+   * @param aRequest the request that owns the decoder.
+   *
+   * @note The decode should QI \a aRequest to an imgIDecoderObserver
+   * and should send decoder notifications to the request.
+   * The decoder should always pass NULL as the first two parameters to
+   * all of the imgIDecoderObserver APIs.
+   */
+  void init(in imgIRequest aRequest);
+
+  /// allows access to the nsIImage we have to put bits in to.
+  readonly attribute imgIRequest request;
+};

mozilla/modules/libpr0n/public/imgIDecoderObserver.idl

@@ -0,0 +1,80 @@
+/** -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation. Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation. All
+ * Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "imgIContainerObserver.idl"
+
+interface imgIRequest;
+interface imgIContainer;
+interface gfxIImageFrame;
+
+%{C++
+#include "nsRect.h"
+%}
+
+/**
+ * imgIDecoderObserver interface
+ *
+ * @author Stuart Parmenter <pavlov@netscape.com>
+ * @version 0.1
+ * @see imagelib2
+ */
+[scriptable, uuid(350163d2-1dd2-11b2-9e69-89959ecec1f3)]
+interface imgIDecoderObserver : imgIContainerObserver
+{
+  /**
+   * called as soon as the image begins getting decoded
+   */
+  void onStartDecode(in imgIRequest aRequest, in nsISupports cx);
+
+  /**
+   * called once the image has been inited and therefore has a width and height
+   */
+  void onStartContainer(in imgIRequest aRequest, in nsISupports cx, in imgIContainer aContainer);
+
+  /**
+   * called when each frame is created
+   */
+  void onStartFrame(in imgIRequest aRequest, in nsISupports cx, in gfxIImageFrame aFrame);
+
+  /**
+   * called when some part of the frame has new data in it
+   */
+  [noscript] void onDataAvailable(in imgIRequest aRequest, in nsISupports cx, in gfxIImageFrame aFrame, [const] in nsRect aRect);
+
+  /**
+   * called when a frame is finished decoding
+   */
+  void onStopFrame(in imgIRequest aRequest, in nsISupports cx, in gfxIImageFrame aFrame);
+
+  /**
+   * probably not needed.  called right before onStopDecode
+   */
+  void onStopContainer(in imgIRequest aRequest, in nsISupports cx, in imgIContainer aContainer);
+
+  /**
+   * called when the decoder is dying off
+   */
+  void onStopDecode(in imgIRequest aRequest, in nsISupports cx,
+                    in nsresult status, in wstring statusArg);
+
+};

mozilla/modules/libpr0n/public/imgILoader.idl

@@ -0,0 +1,62 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "nsISupports.idl"
+#include "gfxtypes.idl"
+
+interface imgIDecoderObserver;
+interface imgIRequest;
+
+interface nsIChannel;
+interface nsILoadGroup;
+interface nsIStreamListener;
+interface nsIURI;
+
+interface nsISimpleEnumerator;
+
+/**
+ * imgILoader interface
+ *
+ * @author Stuart Parmenter <pavlov@netscape.com>
+ * @version 0.1
+ * @see imagelib2
+ */
+[scriptable, uuid(4c8cf1e0-1dd2-11b2-aff9-c51cdbfcb6da)]
+interface imgILoader : nsISupports
+{
+  /**
+   * Start the load and decode of an image.
+   * @param uri the URI to load
+   * @param aObserver the observer
+   * @param cx some random data
+   */
+  imgIRequest loadImage(in nsIURI uri, in nsILoadGroup aLoadGroup, in imgIDecoderObserver aObserver, in nsISupports cx);
+
+  /**
+   * Start the load and decode of an image.
+   * @param uri the URI to load
+   * @param aObserver the observer
+   * @param cx some random data
+   */
+  imgIRequest loadImageWithChannel(in nsIChannel aChannel, in imgIDecoderObserver aObserver, in nsISupports cx, out nsIStreamListener aListener);
+};

mozilla/modules/libpr0n/public/imgIRequest.idl

@@ -0,0 +1,80 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "nsISupports.idl"
+#include "nsIRequest.idl"
+
+interface imgIContainer;
+interface imgIDecoderObserver;
+interface nsIURI;
+
+/**
+ * imgIRequest interface
+ *
+ * @author Stuart Parmenter <pavlov@netscape.com>
+ * @version 0.1
+ * @see imagelib2
+ */
+[scriptable, uuid(ccf705f6-1dd1-11b2-82ef-e18eccf7f7ec)]
+interface imgIRequest : nsIRequest
+{
+  /**
+   * the image container...
+   * @return the image object associated with the request.
+   * @attention NEED DOCS
+   */
+  readonly attribute imgIContainer image;
+
+  /**
+   * Bits set in the return value from imageStatus
+   * @name statusflags
+   */
+  //@{
+  const long STATUS_NONE             = 0x0;
+  const long STATUS_SIZE_AVAILABLE   = 0x1;
+  const long STATUS_LOAD_COMPLETE    = 0x2;
+  const long STATUS_ERROR            = 0x4;
+  //@}
+
+  /**
+   * something
+   * @attention NEED DOCS
+   */
+  readonly attribute unsigned long imageStatus;
+
+  readonly attribute nsIURI URI;
+
+  readonly attribute imgIDecoderObserver decoderObserver;
+};
+
+%{C++
+
+/**
+ * imagelib specific nsresult success and error codes
+ */
+#define NS_IMAGELIB_SUCCESS_LOAD_FINISHED   NS_ERROR_GENERATE_SUCCESS(NS_ERROR_MODULE_IMGLIB, 0)
+
+#define NS_IMAGELIB_ERROR_FAILURE           NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_IMGLIB, 5)
+#define NS_IMAGELIB_ERROR_NO_DECODER        NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_IMGLIB, 6)
+
+%}

mozilla/modules/libpr0n/public/makefile.win

@@ -0,0 +1,43 @@
+# 
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#    Stuart Parmenter <pavlov@netscape.com>
+#
+
+DEPTH		= ..\..\..
+
+include <$(DEPTH)/config/config.mak>
+
+MODULE		= imglib2
+XPIDL_MODULE	= imglib2
+
+EXPORTS		= ImageLogging.h
+
+XPIDLSRCS	= \
+		.\imgIContainer.idl \
+		.\imgIContainerObserver.idl \
+		.\imgIDecoder.idl \
+		.\imgIDecoderObserver.idl \
+		.\imgILoader.idl \
+		.\imgIRequest.idl \
+		$(NULL)
+
+
+include <$(DEPTH)\config\rules.mak>
+

mozilla/modules/libpr0n/src/DummyChannel.cpp

@@ -0,0 +1,146 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "DummyChannel.h"
+
+#include "nsCOMPtr.h"
+#include "nsIServiceManager.h"
+
+
+NS_IMPL_ISUPPORTS1(DummyChannel, nsIChannel)
+
+DummyChannel::DummyChannel(imgIRequest *aRequest, nsILoadGroup *aLoadGroup) :
+  mRequest(aRequest),
+  mLoadGroup(aLoadGroup),
+  mLoadFlags(nsIChannel::LOAD_NORMAL)
+{
+  NS_INIT_ISUPPORTS();
+  /* member initializers and constructor code */
+}
+
+DummyChannel::~DummyChannel()
+{
+  /* destructor code */
+}
+
+/* attribute nsIURI originalURI; */
+NS_IMETHODIMP DummyChannel::GetOriginalURI(nsIURI * *aOriginalURI)
+{
+  return mRequest->GetURI(aOriginalURI);
+}
+NS_IMETHODIMP DummyChannel::SetOriginalURI(nsIURI * aOriginalURI)
+{
+  return NS_ERROR_FAILURE;
+}
+
+/* attribute nsIURI URI; */
+NS_IMETHODIMP DummyChannel::GetURI(nsIURI * *aURI)
+{
+  return mRequest->GetURI(aURI);
+}
+NS_IMETHODIMP DummyChannel::SetURI(nsIURI * aURI)
+{
+  return NS_ERROR_FAILURE;
+}
+
+/* attribute nsISupports owner; */
+NS_IMETHODIMP DummyChannel::GetOwner(nsISupports * *aOwner)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+NS_IMETHODIMP DummyChannel::SetOwner(nsISupports * aOwner)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* attribute nsILoadGroup loadGroup; */
+NS_IMETHODIMP DummyChannel::GetLoadGroup(nsILoadGroup * *aLoadGroup)
+{
+  *aLoadGroup = mLoadGroup;
+  NS_IF_ADDREF(*aLoadGroup);
+  return NS_OK;
+}
+NS_IMETHODIMP DummyChannel::SetLoadGroup(nsILoadGroup * aLoadGroup)
+{
+  return NS_ERROR_FAILURE;
+}
+
+/* attribute nsLoadFlags loadAttributes; */
+NS_IMETHODIMP DummyChannel::GetLoadAttributes(nsLoadFlags *aLoadAttributes)
+{
+  *aLoadAttributes = mLoadFlags;
+  return NS_OK;
+}
+NS_IMETHODIMP DummyChannel::SetLoadAttributes(nsLoadFlags aLoadAttributes)
+{
+  mLoadFlags = aLoadAttributes;
+  return NS_OK;
+}
+
+/* attribute nsIInterfaceRequestor notificationCallbacks; */
+NS_IMETHODIMP DummyChannel::GetNotificationCallbacks(nsIInterfaceRequestor * *aNotificationCallbacks)
+{
+    return NS_OK;
+}
+NS_IMETHODIMP DummyChannel::SetNotificationCallbacks(nsIInterfaceRequestor * aNotificationCallbacks)
+{
+    return NS_OK;
+}
+
+/* readonly attribute nsISupports securityInfo; */
+NS_IMETHODIMP DummyChannel::GetSecurityInfo(nsISupports * *aSecurityInfo)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* attribute string contentType; */
+NS_IMETHODIMP DummyChannel::GetContentType(char * *aContentType)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+NS_IMETHODIMP DummyChannel::SetContentType(const char * aContentType)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* attribute long contentLength; */
+NS_IMETHODIMP DummyChannel::GetContentLength(PRInt32 *aContentLength)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+NS_IMETHODIMP DummyChannel::SetContentLength(PRInt32 aContentLength)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* nsIInputStream open (); */
+NS_IMETHODIMP DummyChannel::Open(nsIInputStream **_retval)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* void asyncOpen (in nsIStreamListener listener, in nsISupports ctxt); */
+NS_IMETHODIMP DummyChannel::AsyncOpen(nsIStreamListener *listener, nsISupports *ctxt)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}

mozilla/modules/libpr0n/src/DummyChannel.h

@@ -0,0 +1,54 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#ifndef DummyChannel_h__
+#define DummyChannel_h__
+
+#include "nsIChannel.h"
+#include "nsIRequest.h"
+#include "nsILoadGroup.h"
+
+#include "imgIRequest.h"
+
+#include "nsCOMPtr.h"
+
+class DummyChannel : public nsIChannel
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICHANNEL
+  NS_FORWARD_NSIREQUEST(mRequest->)
+
+  DummyChannel(imgIRequest *aRequest, nsILoadGroup *aLoadGroup);
+  ~DummyChannel();
+
+private:
+  /* additional members */
+  nsCOMPtr<imgIRequest> mRequest;
+  nsCOMPtr<nsILoadGroup> mLoadGroup;
+
+  nsLoadFlags mLoadFlags;
+};
+
+#endif
+

mozilla/modules/libpr0n/src/ImageCache.cpp

@@ -0,0 +1,166 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "ImageCache.h"
+
+#ifdef MOZ_NEW_CACHE
+
+#include "prlog.h"
+
+#if defined(PR_LOGGING)
+extern PRLogModuleInfo *gImgLog;
+#else
+#define gImgLog
+#endif
+
+#include "nsXPIDLString.h"
+#include "nsCOMPtr.h"
+#include "nsIServiceManager.h"
+
+#include "nsICache.h"
+#include "nsICacheService.h"
+#include "nsICacheSession.h"
+#include "nsICacheEntryDescriptor.h"
+
+static nsCOMPtr<nsICacheSession> gSession = nsnull;
+
+ImageCache::ImageCache()
+{
+  /* member initializers and constructor code */
+}
+
+ImageCache::~ImageCache()
+{
+  /* destructor code */
+}
+
+void GetCacheSession(nsICacheSession **_retval)
+{
+  if (!gSession) {
+    nsCOMPtr<nsICacheService> cacheService(do_GetService("@mozilla.org/network/cache-service;1"));
+    NS_ASSERTION(cacheService, "Unable to get the cache service");
+
+    cacheService->CreateSession("images", nsICache::NOT_STREAM_BASED, PR_FALSE, getter_AddRefs(gSession));
+    NS_ASSERTION(gSession, "Unable to create a cache session");
+  }
+
+  *_retval = gSession;
+  NS_IF_ADDREF(*_retval);
+}
+
+
+void ImageCache::Shutdown()
+{
+  gSession = nsnull;
+}
+
+PRBool ImageCache::Put(nsIURI *aKey, imgRequest *request, nsICacheEntryDescriptor **aEntry)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("ImageCache::Put\n"));
+
+  nsresult rv;
+
+  nsCOMPtr<nsICacheSession> ses;
+  GetCacheSession(getter_AddRefs(ses));
+
+  nsXPIDLCString spec;
+  aKey->GetSpec(getter_Copies(spec));
+
+  nsCOMPtr<nsICacheEntryDescriptor> entry;
+
+  rv = ses->OpenCacheEntry(spec, nsICache::ACCESS_WRITE, getter_AddRefs(entry));
+
+  if (!entry || NS_FAILED(rv))
+    return PR_FALSE;
+
+  entry->SetCacheElement(NS_STATIC_CAST(nsISupports *, NS_STATIC_CAST(imgIRequest*, request)));
+
+  entry->MarkValid();
+
+  *aEntry = entry;
+  NS_ADDREF(*aEntry);
+
+  return PR_TRUE;
+}
+
+PRBool ImageCache::Get(nsIURI *aKey, imgRequest **aRequest, nsICacheEntryDescriptor **aEntry)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+       ("ImageCache::Get\n"));
+
+  nsresult rv;
+
+  nsCOMPtr<nsICacheSession> ses;
+  GetCacheSession(getter_AddRefs(ses));
+
+  nsXPIDLCString spec;
+  aKey->GetSpec(getter_Copies(spec));
+
+  nsCOMPtr<nsICacheEntryDescriptor> entry;
+
+  rv = ses->OpenCacheEntry(spec, nsICache::ACCESS_READ, getter_AddRefs(entry));
+
+  if (!entry || NS_FAILED(rv))
+    return PR_FALSE;
+
+  nsCOMPtr<nsISupports> sup;
+  entry->GetCacheElement(getter_AddRefs(sup));
+
+  nsCOMPtr<imgIRequest> req(do_QueryInterface(sup));
+  *aRequest = NS_REINTERPRET_CAST(imgRequest*, req.get());
+  NS_IF_ADDREF(*aRequest);
+
+  *aEntry = entry;
+  NS_ADDREF(*aEntry);
+
+  return PR_TRUE;
+}
+
+
+PRBool ImageCache::Remove(nsIURI *aKey)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("ImageCache::Remove\n"));
+
+  nsresult rv;
+
+  nsCOMPtr<nsICacheSession> ses;
+  GetCacheSession(getter_AddRefs(ses));
+
+  nsXPIDLCString spec;
+  aKey->GetSpec(getter_Copies(spec));
+
+  nsCOMPtr<nsICacheEntryDescriptor> entry;
+
+  rv = ses->OpenCacheEntry(spec, nsICache::ACCESS_READ, getter_AddRefs(entry));
+
+  if (!entry || NS_FAILED(rv))
+    return PR_FALSE;
+
+  entry->Doom();
+
+  return PR_TRUE;
+}
+
+#endif /* MOZ_NEW_CACHE */

mozilla/modules/libpr0n/src/ImageCache.h

@@ -0,0 +1,72 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#ifndef ImageCache_h__
+#define ImageCache_h__
+
+#include "nsIURI.h"
+#include "imgRequest.h"
+#include "prtypes.h"
+
+#ifdef MOZ_NEW_CACHE
+#include "nsICacheEntryDescriptor.h"
+#else
+class nsICacheEntryDescriptor;
+#endif
+
+
+class ImageCache
+{
+public:
+#ifdef MOZ_NEW_CACHE
+  ImageCache();
+  ~ImageCache();
+
+  static void Shutdown(); // for use by the factory
+
+  /* additional members */
+  static PRBool Put(nsIURI *aKey, imgRequest *request, nsICacheEntryDescriptor **aEntry);
+  static PRBool Get(nsIURI *aKey, imgRequest **aRequest, nsICacheEntryDescriptor **aEntry);
+  static PRBool Remove(nsIURI *aKey);
+
+#else
+
+  ImageCache()  { }
+  ~ImageCache() { }
+
+  static void Shutdown() { }
+
+  /* additional members */
+  static PRBool Put(nsIURI *aKey, imgRequest *request, nsICacheEntryDescriptor **aEntry) {
+    return PR_FALSE;
+  }
+  static PRBool Get(nsIURI *aKey, imgRequest **aRequest, nsICacheEntryDescriptor **aEntry) {
+    return PR_FALSE;
+  }
+  static PRBool Remove(nsIURI *aKey) {
+    return PR_FALSE;
+  }
+#endif /* MOZ_NEW_CACHE */
+};
+
+#endif

mozilla/modules/libpr0n/src/ImageFactory.cpp

@@ -0,0 +1,67 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation. Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation. All
+ * Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "nsIGenericFactory.h"
+#include "nsIModule.h"
+
+#include "imgContainer.h"
+#include "imgLoader.h"
+#include "imgRequest.h"
+#include "imgRequestProxy.h"
+
+#include "ImageCache.h"
+
+// objects that just require generic constructors
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(imgContainer)
+NS_GENERIC_FACTORY_CONSTRUCTOR(imgLoader)
+NS_GENERIC_FACTORY_CONSTRUCTOR(imgRequest)
+NS_GENERIC_FACTORY_CONSTRUCTOR(imgRequestProxy)
+
+static nsModuleComponentInfo components[] =
+{
+  { "image container",
+    NS_IMGCONTAINER_CID,
+    "@mozilla.org/image/container;1",
+    imgContainerConstructor, },
+  { "image loader",
+    NS_IMGLOADER_CID,
+    "@mozilla.org/image/loader;1",
+    imgLoaderConstructor, },
+  { "image request",
+    NS_IMGREQUEST_CID,
+    "@mozilla.org/image/request/real;1",
+    imgRequestConstructor, },
+  { "image request proxy",
+    NS_IMGREQUESTPROXY_CID,
+    "@mozilla.org/image/request/proxy;1",
+    imgRequestProxyConstructor, },
+};
+
+PR_STATIC_CALLBACK(void)
+ImageModuleDestructor(nsIModule *self)
+{
+  ImageCache::Shutdown();
+}
+
+NS_IMPL_NSGETMODULE_WITH_DTOR("nsImageLib2Module", components, ImageModuleDestructor)

mozilla/modules/libpr0n/src/Makefile.in

@@ -0,0 +1,49 @@
+#
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#
+
+DEPTH		= ../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+MODULE		= imglib2
+LIBRARY_NAME	= imglib2
+IS_COMPONENT	= 1
+
+REQUIRES	= xpcom string necko nkcache layout timer gfx2
+
+CPPSRCS		= \
+			DummyChannel.cpp \
+			ImageCache.cpp   \
+			ImageFactory.cpp \
+			imgContainer.cpp \
+			imgLoader.cpp    \
+			imgRequest.cpp   \
+			imgRequestProxy.cpp
+
+EXTRA_DSO_LDOPTS = \
+		$(MOZ_COMPONENT_LIBS) \
+		$(NULL)
+
+include $(topsrcdir)/config/rules.mk
+

mozilla/modules/libpr0n/src/imgContainer.cpp

@@ -0,0 +1,555 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation. Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation. All
+ * Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Stuart Parmenter <pavlov@netscape.com>
+ *   Chris Saari <saari@netscape.com>
+ */
+
+#include "imgContainer.h"
+
+#include "nsIServiceManager.h"
+#include "nsIInterfaceRequestor.h"
+#include "gfxIImageFrame.h"
+#include "nsIImage.h"
+
+NS_IMPL_ISUPPORTS3(imgContainer, imgIContainer, nsITimerCallback,imgIDecoderObserver)
+
+//******************************************************************************
+imgContainer::imgContainer()
+{
+  NS_INIT_ISUPPORTS();
+  /* member initializers and constructor code */
+  mCurrentDecodingFrameIndex = 0;
+  mCurrentAnimationFrameIndex = 0;
+  mCurrentFrameIsFinishedDecoding = PR_FALSE;
+  mDoneDecoding = PR_FALSE;
+  mAnimating = PR_FALSE;
+  mObserver = nsnull;
+}
+
+//******************************************************************************
+imgContainer::~imgContainer()
+{
+  if (mTimer)
+    mTimer->Cancel();
+    
+  /* destructor code */
+  mFrames.Clear();
+}
+
+//******************************************************************************
+/* void init (in nscoord aWidth, in nscoord aHeight, in imgIContainerObserver aObserver); */
+NS_IMETHODIMP imgContainer::Init(nscoord aWidth, nscoord aHeight, imgIContainerObserver *aObserver)
+{
+  if (aWidth <= 0 || aHeight <= 0) {
+    NS_WARNING("error - negative image size\n");
+    return NS_ERROR_FAILURE;
+  }
+
+  mSize.SizeTo(aWidth, aHeight);
+
+  mObserver = getter_AddRefs(NS_GetWeakReference(aObserver));
+
+  return NS_OK;
+}
+
+//******************************************************************************
+/* readonly attribute gfx_format preferredAlphaChannelFormat; */
+NS_IMETHODIMP imgContainer::GetPreferredAlphaChannelFormat(gfx_format *aFormat)
+{
+  /* default.. platform's should probably overwrite this */
+  *aFormat = gfxIFormats::RGB_A8;
+  return NS_OK;
+}
+
+//******************************************************************************
+/* readonly attribute nscoord width; */
+NS_IMETHODIMP imgContainer::GetWidth(nscoord *aWidth)
+{
+  *aWidth = mSize.width;
+  return NS_OK;
+}
+
+//******************************************************************************
+/* readonly attribute nscoord height; */
+NS_IMETHODIMP imgContainer::GetHeight(nscoord *aHeight)
+{
+  *aHeight = mSize.height;
+  return NS_OK;
+}
+
+//******************************************************************************
+/* readonly attribute gfxIImageFrame currentFrame; */
+NS_IMETHODIMP imgContainer::GetCurrentFrame(gfxIImageFrame * *aCurrentFrame)
+{
+  if(mCompositingFrame)
+    return mCompositingFrame->QueryInterface(NS_GET_IID(gfxIImageFrame), (void**)aCurrentFrame); // addrefs again
+  else
+    return this->GetFrameAt(mCurrentAnimationFrameIndex, aCurrentFrame);
+}
+
+//******************************************************************************
+/* readonly attribute unsigned long numFrames; */
+NS_IMETHODIMP imgContainer::GetNumFrames(PRUint32 *aNumFrames)
+{
+  return mFrames.Count(aNumFrames);
+}
+
+//******************************************************************************
+/* gfxIImageFrame getFrameAt (in unsigned long index); */
+NS_IMETHODIMP imgContainer::GetFrameAt(PRUint32 index, gfxIImageFrame **_retval)
+{
+  nsISupports *sup = mFrames.ElementAt(index); // addrefs
+  if (!sup)
+    return NS_ERROR_FAILURE;
+
+  nsresult rv;
+  rv = sup->QueryInterface(NS_GET_IID(gfxIImageFrame), (void**)_retval); // addrefs again
+
+  NS_RELEASE(sup);
+
+  return rv;
+}
+
+//******************************************************************************
+/* void appendFrame (in gfxIImageFrame item); */
+NS_IMETHODIMP imgContainer::AppendFrame(gfxIImageFrame *item)
+{
+  // If we don't have a composite frame already allocated, make sure that our container
+  // size is the same the frame size. Otherwise, we'll either need the composite frame
+  // for animation compositing (GIF) or for filling in with a background color.
+  // XXX IMPORTANT: this means that the frame should be initialized BEFORE appending to container
+  PRUint32 numFrames;
+  this->GetNumFrames(&numFrames);
+  
+  if(!mCompositingFrame) {
+    nsRect frameRect;
+    item->GetRect(frameRect);
+    // We used to create a compositing frame if any frame was smaller than the logical
+    // image size. You could create a single frame that was 10x10 in the middle of
+    // an 20x20 logical screen and have the extra screen space filled by the image 
+    // background color. However, it turns out that neither NS4.x nor IE correctly
+    // support this, and as a result there are many GIFs out there that look "wrong"
+    // when this is correctly supported. So for now, we only create a compositing frame
+    // if we have more than one frame in the image.
+    if(/*(frameRect.x != 0) ||
+       (frameRect.y != 0) ||
+       (frameRect.width != mSize.width) ||
+       (frameRect.height != mSize.height) ||*/
+       (numFrames >= 1)) // Not sure if I want to create a composite frame for every anim. Could be smarter.
+    {
+      mCompositingFrame = do_CreateInstance("@mozilla.org/gfx/image/frame;2");
+      mCompositingFrame->Init(0, 0, mSize.width, mSize.height, gfxIFormats::RGB); 
+      nsCOMPtr<nsIImage> img(do_GetInterface(mCompositingFrame));
+      img->SetDecodedRect(0, 0, mSize.width, mSize.height);
+      
+      nsCOMPtr<gfxIImageFrame> firstFrame;
+      this->GetFrameAt(0, getter_AddRefs(firstFrame));
+      firstFrame->DrawTo(mCompositingFrame, 0, 0, mSize.width, mSize.height);
+    }
+  }
+  // If this is our second frame, init a timer so we don't display
+  // the next frame until the delay timer has expired for the current
+  // frame.
+
+  if (!mTimer && (numFrames >= 1)) {
+      PRInt32 timeout;
+      nsCOMPtr<gfxIImageFrame> currentFrame;
+      this->GetFrameAt(mCurrentDecodingFrameIndex, getter_AddRefs(currentFrame));
+      currentFrame->GetTimeout(&timeout);
+      if (timeout != -1 &&
+         timeout >= 0) { // -1 means display this frame forever
+        
+        if(mAnimating) {
+          // Since we have more than one frame we need a timer
+          mTimer = do_CreateInstance("@mozilla.org/timer;1");
+          mTimer->Init(
+            NS_STATIC_CAST(nsITimerCallback*, this), 
+            timeout, NS_PRIORITY_NORMAL, NS_TYPE_REPEATING_SLACK);
+        }
+      }
+  }
+ 
+  if (numFrames > 0) mCurrentDecodingFrameIndex++;
+
+  mCurrentFrameIsFinishedDecoding = PR_FALSE;
+
+  return mFrames.AppendElement(NS_STATIC_CAST(nsISupports*, item));
+}
+
+//******************************************************************************
+/* void removeFrame (in gfxIImageFrame item); */
+NS_IMETHODIMP imgContainer::RemoveFrame(gfxIImageFrame *item)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//******************************************************************************
+/* void endFrameDecode (in gfxIImageFrame item, in unsigned long timeout); */
+NS_IMETHODIMP imgContainer::EndFrameDecode(PRUint32 aFrameNum, PRUint32 aTimeout)
+{
+  // It is now okay to start the timer for the next frame in the animation
+  mCurrentFrameIsFinishedDecoding = PR_TRUE;
+
+  nsCOMPtr<gfxIImageFrame> currentFrame;
+  this->GetFrameAt(aFrameNum-1, getter_AddRefs(currentFrame));
+  currentFrame->SetTimeout(aTimeout);
+      
+  if (!mTimer && mAnimating){
+    PRUint32 numFrames;
+    this->GetNumFrames(&numFrames);
+    if (numFrames > 1) {
+        if (aTimeout != -1 &&
+            aTimeout >= 0) { // -1 means display this frame forever
+
+          mAnimating = PR_TRUE;
+          mTimer = do_CreateInstance("@mozilla.org/timer;1");
+      
+          mTimer->Init(NS_STATIC_CAST(nsITimerCallback*, this),
+                     aTimeout, NS_PRIORITY_NORMAL, NS_TYPE_REPEATING_SLACK);
+        }
+    }
+  }
+  return NS_OK;
+}
+
+//******************************************************************************
+/* void decodingComplete (); */
+NS_IMETHODIMP imgContainer::DecodingComplete(void)
+{
+  mDoneDecoding = PR_TRUE;
+  return NS_OK;
+}
+
+//******************************************************************************
+/* nsIEnumerator enumerate (); */
+NS_IMETHODIMP imgContainer::Enumerate(nsIEnumerator **_retval)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* void clear (); */
+NS_IMETHODIMP imgContainer::Clear()
+{
+  return mFrames.Clear();
+}
+
+//******************************************************************************
+/* void startAnimation () */
+NS_IMETHODIMP imgContainer::StartAnimation()
+{
+  mAnimating = PR_TRUE;
+        
+  if (mTimer)
+    return NS_OK;
+
+  PRUint32 numFrames;
+  this->GetNumFrames(&numFrames);
+
+  if (numFrames > 1) {
+    PRInt32 timeout;
+    nsCOMPtr<gfxIImageFrame> currentFrame;
+    this->GetCurrentFrame(getter_AddRefs(currentFrame));
+    if (currentFrame) {
+      currentFrame->GetTimeout(&timeout);
+      if (timeout != -1 &&
+          timeout >= 0) { // -1 means display this frame forever
+
+        mAnimating = PR_TRUE;
+        if(!mTimer) mTimer = do_CreateInstance("@mozilla.org/timer;1");
+      
+        mTimer->Init(NS_STATIC_CAST(nsITimerCallback*, this),
+                     timeout, NS_PRIORITY_NORMAL, NS_TYPE_REPEATING_SLACK);
+      }
+    } else {
+      // XXX hack.. the timer notify code will do the right thing, so just get that started
+      mAnimating = PR_TRUE;
+      if(!mTimer) mTimer = do_CreateInstance("@mozilla.org/timer;1");
+      
+      mTimer->Init(NS_STATIC_CAST(nsITimerCallback*, this),
+                   100, NS_PRIORITY_NORMAL, NS_TYPE_REPEATING_SLACK);
+    }
+  }
+
+  return NS_OK;
+}
+
+//******************************************************************************
+/* void stopAnimation (); */
+NS_IMETHODIMP imgContainer::StopAnimation()
+{
+  mAnimating = PR_FALSE;
+  
+  if (!mTimer)
+    return NS_OK;
+
+  mTimer->Cancel();
+  
+  mTimer = nsnull;
+
+  // don't bother trying to change the frame (to 0, etc.) here.
+  // No one is listening.
+
+  return NS_OK;
+}
+
+//******************************************************************************
+/* attribute long loopCount; */
+NS_IMETHODIMP imgContainer::GetLoopCount(PRInt32 *aLoopCount)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+NS_IMETHODIMP imgContainer::SetLoopCount(PRInt32 aLoopCount)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+
+
+NS_IMETHODIMP_(void) imgContainer::Notify(nsITimer *timer)
+{
+  NS_ASSERTION(mTimer == timer, "uh");
+
+  if(!mAnimating || !mTimer)
+    return;
+
+  nsCOMPtr<imgIContainerObserver> observer(do_QueryReferent(mObserver));
+  if (!observer) {
+    // the imgRequest that owns us is dead, we should die now too.
+    this->StopAnimation();
+    return;
+  }
+
+  nsCOMPtr<gfxIImageFrame> nextFrame;
+  PRInt32 timeout = 100;
+  PRUint32 numFrames;
+  GetNumFrames(&numFrames);
+  if(!numFrames)
+    return;
+  
+  // If we're done decoding the next frame, go ahead and display it now and reinit
+  // the timer with the next frame's delay time.
+  PRUint32 previousAnimationFrameIndex = mCurrentAnimationFrameIndex;
+  if (mCurrentFrameIsFinishedDecoding && !mDoneDecoding) {
+    // If we have the next frame in the sequence set the timer callback from it
+    GetFrameAt(mCurrentAnimationFrameIndex+1, getter_AddRefs(nextFrame));
+    if (nextFrame) {
+      // Go to next frame in sequence
+      nextFrame->GetTimeout(&timeout);
+      mCurrentAnimationFrameIndex++;
+    } else {
+      // twiddle our thumbs
+      GetFrameAt(mCurrentAnimationFrameIndex, getter_AddRefs(nextFrame));
+      if(!nextFrame) return;
+      
+      nextFrame->GetTimeout(&timeout);
+    }
+  } else if (mDoneDecoding){
+    if ((numFrames-1) == mCurrentAnimationFrameIndex) {
+      // Go back to the beginning of the animation
+      GetFrameAt(0, getter_AddRefs(nextFrame));
+      if(!nextFrame) return;
+      
+      mCurrentAnimationFrameIndex = 0;
+      nextFrame->GetTimeout(&timeout);
+    } else {
+      mCurrentAnimationFrameIndex++;
+      GetFrameAt(mCurrentAnimationFrameIndex, getter_AddRefs(nextFrame));
+      if(!nextFrame) return;
+      
+      nextFrame->GetTimeout(&timeout);
+    }
+  } else {
+    GetFrameAt(mCurrentAnimationFrameIndex, getter_AddRefs(nextFrame));
+    if(!nextFrame) return;
+  }
+
+  if(timeout >= 0)
+    mTimer->SetDelay(timeout);
+  else
+    this->StopAnimation();
+    
+    
+  nsRect dirtyRect;
+
+  // update the composited frame
+  if(mCompositingFrame && (previousAnimationFrameIndex != mCurrentAnimationFrameIndex)) {
+    nsCOMPtr<gfxIImageFrame> frameToUse;
+    DoComposite(getter_AddRefs(frameToUse), &dirtyRect, previousAnimationFrameIndex, mCurrentAnimationFrameIndex);
+
+    // do notification to FE to draw this frame, but hand it the compositing frame
+    observer->FrameChanged(this, nsnull, mCompositingFrame, &dirtyRect);
+  } 
+  else {
+    nextFrame->GetRect(dirtyRect);
+
+    // do notification to FE to draw this frame
+    observer->FrameChanged(this, nsnull, nextFrame, &dirtyRect);
+  }
+
+
+}
+//******************************************************************************
+// DoComposite gets called when the timer for animation get fired and we have to
+// update the composited frame of the animation.
+void imgContainer::DoComposite(gfxIImageFrame** aFrameToUse, nsRect* aDirtyRect, PRInt32 aPrevFrame, PRInt32 aNextFrame)
+{
+  NS_ASSERTION(aDirtyRect, "DoComposite aDirtyRect is null");
+  NS_ASSERTION(mCompositingFrame, "DoComposite mCompositingFrame is null");
+  
+  *aFrameToUse = nsnull;
+  
+  PRUint32 numFrames;
+  this->GetNumFrames(&numFrames);
+  PRInt32 nextFrameIndex = aNextFrame;
+  PRInt32 prevFrameIndex = aPrevFrame;
+  
+  if(nextFrameIndex >= numFrames) nextFrameIndex = numFrames-1;
+  if(prevFrameIndex >= numFrames) prevFrameIndex = numFrames-1;
+  
+  nsCOMPtr<gfxIImageFrame> prevFrame;
+  this->GetFrameAt(prevFrameIndex, getter_AddRefs(prevFrame));
+  PRInt32 prevFrameDisposalMethod;
+  prevFrame->GetFrameDisposalMethod(&prevFrameDisposalMethod);
+  
+  nsCOMPtr<gfxIImageFrame> nextFrame;
+  this->GetFrameAt(nextFrameIndex, getter_AddRefs(nextFrame));
+  
+  PRInt32 x;
+  PRInt32 y;
+  PRInt32 width;
+  PRInt32 height;
+  nextFrame->GetX(&x);
+  nextFrame->GetY(&y);
+  nextFrame->GetWidth(&width);
+  nextFrame->GetHeight(&height);
+  
+  switch (prevFrameDisposalMethod) {
+    default:
+    case 0: // DISPOSE_NOT_SPECIFIED
+    case 1: // DISPOSE_KEEP Leave previous frame in the framebuffer
+      mCompositingFrame->QueryInterface(NS_GET_IID(gfxIImageFrame), (void**)aFrameToUse); // addrefs again
+      //XXX blit into the composite frame too!!!
+      nextFrame->DrawTo(mCompositingFrame, x, y, width, height);
+          
+      // we're drawing only the updated frame
+      (*aDirtyRect).x = x;
+      (*aDirtyRect).y = y;
+      (*aDirtyRect).width = width;
+      (*aDirtyRect).height = height;
+    break;
+    
+    case 2: // DISPOSE_OVERWRITE_BGCOLOR Overwrite with background color
+      //XXX overwrite mCompositeFrame with background color
+      gfx_color backgroundColor;
+      nextFrame->GetBackgroundColor(&backgroundColor);
+      //XXX Do background color overwrite of mCompositeFrame here
+      
+      // blit next frame into this clean slate
+      nextFrame->DrawTo(mCompositingFrame, x, y, width, height);
+      
+      // In this case we need to blit the whole composite frame  
+      (*aDirtyRect).x = 0;
+      (*aDirtyRect).y = 0;
+      (*aDirtyRect).width = mSize.width;
+      (*aDirtyRect).height = mSize.height;
+      mCompositingFrame->QueryInterface(NS_GET_IID(gfxIImageFrame), (void**)aFrameToUse); // addrefs again
+    break;
+    
+    case 4: // DISPOSE_OVERWRITE_PREVIOUS Save-under
+      //XXX Reblit previous composite into frame buffer
+      // 
+      (*aDirtyRect).x = 0;
+      (*aDirtyRect).y = 0;
+      (*aDirtyRect).width = mSize.width;
+      (*aDirtyRect).height = mSize.height;
+    break;
+  }
+  
+  // Get the next frame's disposal method, if it is it DISPOSE_OVER, save off
+  // this mCompositeFrame for reblitting when this timer gets fired again and
+  // we 
+  PRInt32 nextFrameDisposalMethod;
+  nextFrame->GetFrameDisposalMethod(&nextFrameDisposalMethod);
+  //XXX if(nextFrameDisposalMethod == 4)
+  // blit mPreviousCompositeFrame with this frame
+}
+//******************************************************************************
+/* void onStartDecode (in imgIRequest aRequest, in nsISupports cx); */
+NS_IMETHODIMP imgContainer::OnStartDecode(imgIRequest *aRequest, nsISupports *cx)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//******************************************************************************
+/* void onStartContainer (in imgIRequest aRequest, in nsISupports cx, in imgIContainer aContainer); */
+NS_IMETHODIMP imgContainer::OnStartContainer(imgIRequest *aRequest, nsISupports *cx, imgIContainer *aContainer)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//******************************************************************************
+/* void onStartFrame (in imgIRequest aRequest, in nsISupports cx, in gfxIImageFrame aFrame); */
+NS_IMETHODIMP imgContainer::OnStartFrame(imgIRequest *aRequest, nsISupports *cx, gfxIImageFrame *aFrame)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//******************************************************************************
+/* [noscript] void onDataAvailable (in imgIRequest aRequest, in nsISupports cx, in gfxIImageFrame aFrame, [const] in nsRect aRect); */
+NS_IMETHODIMP imgContainer::OnDataAvailable(imgIRequest *aRequest, nsISupports *cx, gfxIImageFrame *aFrame, const nsRect * aRect)
+{
+  if(mCompositingFrame && !mCurrentDecodingFrameIndex) {
+    // Update the composite frame
+    PRInt32 x;
+    aFrame->GetX(&x);
+    aFrame->DrawTo(mCompositingFrame, x, aRect->y, aRect->width, aRect->height);
+  }
+    return NS_OK;
+}
+
+//******************************************************************************
+/* void onStopFrame (in imgIRequest aRequest, in nsISupports cx, in gfxIImageFrame aFrame); */
+NS_IMETHODIMP imgContainer::OnStopFrame(imgIRequest *aRequest, nsISupports *cx, gfxIImageFrame *aFrame)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//******************************************************************************
+/* void onStopContainer (in imgIRequest aRequest, in nsISupports cx, in imgIContainer aContainer); */
+NS_IMETHODIMP imgContainer::OnStopContainer(imgIRequest *aRequest, nsISupports *cx, imgIContainer *aContainer)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//******************************************************************************
+/* void onStopDecode (in imgIRequest aRequest, in nsISupports cx, in nsresult status, in wstring statusArg); */
+NS_IMETHODIMP imgContainer::OnStopDecode(imgIRequest *aRequest, nsISupports *cx, nsresult status, const PRUnichar *statusArg)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//******************************************************************************
+/* [noscript] void frameChanged (in imgIContainer aContainer, in nsISupports aCX, in gfxIImageFrame aFrame, in nsRect aDirtyRect); */
+NS_IMETHODIMP imgContainer::FrameChanged(imgIContainer *aContainer, nsISupports *aCX, gfxIImageFrame *aFrame, nsRect * aDirtyRect)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+

mozilla/modules/libpr0n/src/imgContainer.h

@@ -0,0 +1,95 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation. Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation. All
+ * Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Stuart Parmenter <pavlov@netscape.com>
+ *   Chris Saari <saari@netscape.com>
+ */
+
+#ifndef __imgContainer_h__
+#define __imgContainer_h__
+
+#include "imgIContainer.h"
+
+#include "imgIContainerObserver.h"
+
+#include "nsSize.h"
+
+#include "nsSupportsArray.h"
+
+#include "nsCOMPtr.h"
+#include "nsITimer.h"
+#include "nsITimerCallback.h"
+#include "imgIDecoderObserver.h"
+
+#include "gfxIImageFrame.h"
+
+#include "nsWeakReference.h"
+
+#define NS_IMGCONTAINER_CID \
+{ /* 5e04ec5e-1dd2-11b2-8fda-c4db5fb666e0 */         \
+     0x5e04ec5e,                                     \
+     0x1dd2,                                         \
+     0x11b2,                                         \
+    {0x8f, 0xda, 0xc4, 0xdb, 0x5f, 0xb6, 0x66, 0xe0} \
+}
+
+class imgContainer : public imgIContainer,
+                     public nsITimerCallback,
+                     public imgIDecoderObserver
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_IMGICONTAINER
+  NS_DECL_IMGIDECODEROBSERVER
+  NS_DECL_IMGICONTAINEROBSERVER
+
+  NS_IMETHOD_(void) Notify(nsITimer *timer);
+
+  imgContainer();
+  virtual ~imgContainer();
+
+private:
+  /* additional members */
+  nsSupportsArray mFrames;
+  nsSize mSize;
+  PRUint32 mCurrentDecodingFrameIndex; // 0 to numFrames-1
+  PRUint32 mCurrentAnimationFrameIndex; // 0 to numFrames-1
+  PRBool   mCurrentFrameIsFinishedDecoding;
+  PRBool   mDoneDecoding;
+  PRBool   mAnimating;
+  
+  nsWeakPtr mObserver;
+
+  // GIF specific bits
+  nsCOMPtr<nsITimer> mTimer;
+  
+  // GIF animations will use the mCompositingFrame to composite images
+  // and just hand this back to the caller when it is time to draw the frame.
+  nsCOMPtr<gfxIImageFrame> mCompositingFrame;
+  
+  // Private function for doing the frame compositing of animations and in cases
+  // where there is a backgound color and single frame placed withing a larger
+  // logical screen size. Smart GIF compressors may do this to save space.
+  void DoComposite(gfxIImageFrame** aFrameToUse, nsRect* aDirtyRect,
+                   PRInt32 aPrevFrame, PRInt32 aNextFrame);
+};
+
+#endif /* __imgContainer_h__ */
+

mozilla/modules/libpr0n/src/imgLoader.cpp

@@ -0,0 +1,242 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "imgLoader.h"
+
+#include "imgIRequest.h"
+
+#include "nsIServiceManager.h"
+
+#include "nsIChannel.h"
+#include "nsIIOService.h"
+#include "nsILoadGroup.h"
+#include "nsIStreamListener.h"
+#include "nsIURI.h"
+
+#include "imgRequest.h"
+#include "imgRequestProxy.h"
+
+#include "ImageCache.h"
+
+#include "nsXPIDLString.h"
+
+#include "nsCOMPtr.h"
+
+#include "ImageLogging.h"
+
+NS_IMPL_ISUPPORTS1(imgLoader, imgILoader)
+
+imgLoader::imgLoader()
+{
+  NS_INIT_ISUPPORTS();
+  /* member initializers and constructor code */
+}
+
+imgLoader::~imgLoader()
+{
+  /* destructor code */
+}
+
+/* imgIRequest loadImage (in nsIURI uri, in nsILoadGroup aLoadGroup, in imgIDecoderObserver aObserver, in nsISupports cx); */
+NS_IMETHODIMP imgLoader::LoadImage(nsIURI *aURI, nsILoadGroup *aLoadGroup, imgIDecoderObserver *aObserver, nsISupports *cx, imgIRequest **_retval)
+{
+  NS_ASSERTION(aURI, "imgLoader::LoadImage -- NULL URI pointer");
+
+  if (!aURI)
+    return NS_ERROR_NULL_POINTER;
+
+#if defined(PR_LOGGING)
+  nsXPIDLCString spec;
+  aURI->GetSpec(getter_Copies(spec));
+  LOG_SCOPE_WITH_PARAM(gImgLog, "imgLoader::LoadImage", "aURI", spec.get());
+#endif
+
+  imgRequest *request = nsnull;
+
+#ifdef MOZ_NEW_CACHE
+  nsCOMPtr<nsICacheEntryDescriptor> entry;
+  ImageCache::Get(aURI, &request, getter_AddRefs(entry)); // addrefs request
+
+  if (request && entry && aLoadGroup) {
+    /* this isn't exactly what I want here.  This code will re-doom every cache hit in a document while
+       it is force reloading.  So for multiple copies of an image on a page, when you force reload, this
+       will cause you to get seperate loads for each copy of the image... this sucks.
+     */
+    PRUint32 flags = 0;
+    PRBool doomRequest = PR_FALSE;
+    aLoadGroup->GetDefaultLoadAttributes(&flags);
+    if (flags & nsIChannel::FORCE_RELOAD)
+      doomRequest = PR_TRUE;
+    else {
+      nsCOMPtr<nsIRequest> r;
+      aLoadGroup->GetDefaultLoadRequest(getter_AddRefs(r));
+      if (r) {
+        nsCOMPtr<nsIChannel> c(do_QueryInterface(r));
+        if (c) {
+          c->GetLoadAttributes(&flags);
+          if (flags & nsIChannel::FORCE_RELOAD)
+            doomRequest = PR_TRUE;
+        }
+      }
+    }
+
+    if (doomRequest) {
+      entry->Doom(); // doom this thing.
+      entry = nsnull;
+      NS_RELEASE(request);
+      request = nsnull;
+    }
+  }
+#endif
+
+  if (!request) {
+    /* no request from the cache.  do a new load */
+    LOG_SCOPE(gImgLog, "imgLoader::LoadImage |cache miss|");
+
+    nsCOMPtr<nsIIOService> ioserv(do_GetService("@mozilla.org/network/io-service;1"));
+    if (!ioserv) return NS_ERROR_FAILURE;
+
+    nsCOMPtr<nsIChannel> newChannel;
+    ioserv->NewChannelFromURI(aURI, getter_AddRefs(newChannel));
+    if (!newChannel) return NS_ERROR_FAILURE;
+
+    if (aLoadGroup) {
+      PRUint32 flags;
+      aLoadGroup->GetDefaultLoadAttributes(&flags);
+      newChannel->SetLoadAttributes(flags);
+    }
+
+    NS_NEWXPCOM(request, imgRequest);
+    if (!request) return NS_ERROR_OUT_OF_MEMORY;
+
+    NS_ADDREF(request);
+
+    PR_LOG(gImgLog, PR_LOG_DEBUG,
+           ("[this=%p] imgLoader::LoadImage -- Created new imgRequest [request=%p]\n", this, request));
+
+#ifdef MOZ_NEW_CACHE
+    ImageCache::Put(aURI, request, getter_AddRefs(entry));
+#endif
+
+#ifdef MOZ_NEW_CACHE
+    request->Init(newChannel, entry);
+#else
+    request->Init(newChannel, nsnull);
+#endif
+
+    PR_LOG(gImgLog, PR_LOG_DEBUG,
+           ("[this=%p] imgLoader::LoadImage -- Calling channel->AsyncOpen()\n", this));
+
+    // XXX are we calling this too early?
+    newChannel->AsyncOpen(NS_STATIC_CAST(nsIStreamListener *, request), nsnull);
+
+  } else {
+    /* request found in cache.  use it */
+    PR_LOG(gImgLog, PR_LOG_DEBUG,
+           ("[this=%p] imgLoader::LoadImage |cache hit| [request=%p]\n",
+            this, request));
+  }
+
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgLoader::LoadImage -- creating proxy request.\n", this));
+
+  imgRequestProxy *proxyRequest;
+  NS_NEWXPCOM(proxyRequest, imgRequestProxy);
+  if (!proxyRequest) return NS_ERROR_OUT_OF_MEMORY;
+
+  NS_ADDREF(proxyRequest);
+
+  // init adds itself to imgRequest's list of observers
+  proxyRequest->Init(request, aLoadGroup, aObserver, cx);
+
+  NS_RELEASE(request);
+
+  *_retval = NS_STATIC_CAST(imgIRequest*, proxyRequest);
+  NS_ADDREF(*_retval);
+
+  NS_RELEASE(proxyRequest);
+
+  return NS_OK;
+}
+
+/* imgIRequest loadImageWithChannel(in nsIChannel, in imgIDecoderObserver aObserver, in nsISupports cx, out nsIStreamListener); */
+NS_IMETHODIMP imgLoader::LoadImageWithChannel(nsIChannel *channel, imgIDecoderObserver *aObserver, nsISupports *cx, nsIStreamListener **listener, imgIRequest **_retval)
+{
+  NS_ASSERTION(channel, "imgLoader::LoadImageWithChannel -- NULL channel pointer");
+
+  imgRequest *request = nsnull;
+
+  nsCOMPtr<nsIURI> uri;
+  channel->GetOriginalURI(getter_AddRefs(uri));
+
+#ifdef MOZ_NEW_CACHE
+  nsCOMPtr<nsICacheEntryDescriptor> entry;
+  ImageCache::Get(uri, &request, getter_AddRefs(entry)); // addrefs request
+#endif
+  if (request) {
+    // we have this in our cache already.. cancel the current (document) load
+
+    // XXX
+    // if *listener is null when we return here, the caller should probably cancel
+    // the channel instead of us doing it here.
+    channel->Cancel(NS_BINDING_ABORTED); // this should fire an OnStopRequest
+
+    *listener = nsnull; // give them back a null nsIStreamListener
+  } else {
+    NS_NEWXPCOM(request, imgRequest);
+    if (!request) return NS_ERROR_OUT_OF_MEMORY;
+
+    NS_ADDREF(request);
+
+#ifdef MOZ_NEW_CACHE
+    ImageCache::Put(uri, request, getter_AddRefs(entry));
+#endif
+
+#ifdef MOZ_NEW_CACHE
+    request->Init(channel, entry);
+#else
+    request->Init(channel, nsnull);
+#endif
+
+    *listener = NS_STATIC_CAST(nsIStreamListener*, request);
+    NS_IF_ADDREF(*listener);
+  }
+
+  imgRequestProxy *proxyRequest;
+  NS_NEWXPCOM(proxyRequest, imgRequestProxy);
+  if (!proxyRequest) return NS_ERROR_OUT_OF_MEMORY;
+
+  NS_ADDREF(proxyRequest);
+
+  // init adds itself to imgRequest's list of observers
+  proxyRequest->Init(request, nsnull, aObserver, cx);
+
+  NS_RELEASE(request);
+
+  *_retval = NS_STATIC_CAST(imgIRequest*, proxyRequest);
+  NS_ADDREF(*_retval);
+
+  NS_RELEASE(proxyRequest);
+
+  return NS_OK;
+}

mozilla/modules/libpr0n/src/imgLoader.h

@@ -0,0 +1,48 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "imgILoader.h"
+
+#ifdef LOADER_THREADSAFE
+#include "prlock.h"
+#endif
+
+#define NS_IMGLOADER_CID \
+{ /* 9f6a0d2e-1dd1-11b2-a5b8-951f13c846f7 */         \
+     0x9f6a0d2e,                                     \
+     0x1dd1,                                         \
+     0x11b2,                                         \
+    {0xa5, 0xb8, 0x95, 0x1f, 0x13, 0xc8, 0x46, 0xf7} \
+}
+
+class imgLoader : public imgILoader
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_IMGILOADER
+
+  imgLoader();
+  virtual ~imgLoader();
+
+private:
+};

mozilla/modules/libpr0n/src/imgRequest.cpp

@@ -0,0 +1,821 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "imgRequest.h"
+
+#include "nsIAtom.h"
+#include "nsIChannel.h"
+#include "nsILoadGroup.h"
+#include "nsIHTTPChannel.h"
+#include "nsIInputStream.h"
+
+#include "imgILoader.h"
+#include "nsIComponentManager.h"
+
+#include "nsIComponentManager.h"
+#include "nsIServiceManager.h"
+
+#include "nsString.h"
+#include "nsXPIDLString.h"
+
+#include "gfxIImageFrame.h"
+
+#ifdef MOZ_NEW_CACHE
+#include "nsICachingChannel.h"
+#endif
+#include "ImageCache.h"
+
+#include "ImageLogging.h"
+
+#if defined(PR_LOGGING)
+PRLogModuleInfo *gImgLog = PR_NewLogModule("imgRequest");
+#endif
+
+NS_IMPL_ISUPPORTS7(imgRequest, imgIRequest, nsIRequest,
+                   imgIDecoderObserver, imgIContainerObserver,
+                   nsIStreamListener, nsIStreamObserver,
+                   nsISupportsWeakReference)
+
+imgRequest::imgRequest() : 
+  mObservers(0), mLoading(PR_FALSE), mProcessing(PR_FALSE), mStatus(imgIRequest::STATUS_NONE), mState(0)
+{
+  NS_INIT_ISUPPORTS();
+  /* member initializers and constructor code */
+}
+
+imgRequest::~imgRequest()
+{
+  /* destructor code */
+}
+
+
+nsresult imgRequest::Init(nsIChannel *aChannel, nsICacheEntryDescriptor *aCacheEntry)
+{
+  // XXX we should save off the thread we are getting called on here so that we can proxy all calls to mDecoder to it.
+
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequest::Init\n", this));
+
+  NS_ASSERTION(!mImage, "imgRequest::Init -- Multiple calls to init");
+  NS_ASSERTION(aChannel, "imgRequest::Init -- No channel");
+
+  mChannel = aChannel;
+
+#ifdef MOZ_NEW_CACHE
+  mCacheEntry = aCacheEntry;
+#endif
+
+  // XXX do not init the image here.  this has to be done from the image decoder.
+  mImage = do_CreateInstance("@mozilla.org/image/container;1");
+
+  return NS_OK;
+}
+
+nsresult imgRequest::AddObserver(imgIDecoderObserver *observer)
+{
+  LOG_SCOPE_WITH_PARAM(gImgLog, "imgRequest::AddObserver", "observer", observer);
+
+  mObservers.AppendElement(NS_STATIC_CAST(void*, observer));
+
+  // OnStartDecode
+  if (mState & onStartDecode)
+    observer->OnStartDecode(nsnull, nsnull);
+
+  // OnStartContainer
+  if (mState & onStartContainer)
+    observer->OnStartContainer(nsnull, nsnull, mImage);
+
+  // Send frame messages (OnStartFrame, OnDataAvailable, OnStopFrame)
+  PRUint32 nframes;
+  mImage->GetNumFrames(&nframes);
+
+  if (nframes > 0) {
+    nsCOMPtr<gfxIImageFrame> frame;
+    
+    // Is this a single frame image?
+    if (nframes == 1) {
+      // Get the first frame
+      mImage->GetFrameAt(0, getter_AddRefs(frame));
+      NS_ASSERTION(frame, "GetFrameAt gave back a null frame!");
+    } else if (nframes > 1) {
+      /* multiple frames, we'll use the current one */
+      mImage->GetCurrentFrame(getter_AddRefs(frame));
+      NS_ASSERTION(frame, "GetCurrentFrame gave back a null frame!");
+    }
+    
+    // OnStartFrame
+    observer->OnStartFrame(nsnull, nsnull, frame);
+    
+    if (!(mState & onStopContainer)) {
+      // OnDataAvailable
+      nsRect r;
+      frame->GetRect(r);  // XXX we shouldn't send the whole rect here
+      observer->OnDataAvailable(nsnull, nsnull, frame, &r);
+    } else {
+      // OnDataAvailable
+      nsRect r;
+      frame->GetRect(r);  // We're done loading this image, send the the whole rect
+      observer->OnDataAvailable(nsnull, nsnull, frame, &r);
+      
+      // OnStopFrame
+      observer->OnStopFrame(nsnull, nsnull, frame);
+    }
+  }
+
+  // OnStopContainer
+  if (mState & onStopContainer)
+    observer->OnStopContainer(nsnull, nsnull, mImage);
+
+  nsresult status;
+  if (mStatus & imgIRequest::STATUS_LOAD_COMPLETE)
+    status = NS_IMAGELIB_SUCCESS_LOAD_FINISHED;
+  else if (mStatus & imgIRequest::STATUS_ERROR)
+    status = NS_IMAGELIB_ERROR_FAILURE;
+
+  // OnStopDecode
+  if (mState & onStopDecode)
+    observer->OnStopDecode(nsnull, nsnull, status, nsnull);
+
+  if (mImage && (mObservers.Count() == 1)) {
+    PRUint32 nframes;
+    mImage->GetNumFrames(&nframes);
+    PR_LOG(gImgLog, PR_LOG_DEBUG,
+           ("[this=%p] imgRequest::AddObserver -- starting animation\n", this));
+
+    mImage->StartAnimation();
+  }
+
+  if (mState & onStopRequest) {
+    nsCOMPtr<nsIStreamObserver> ob(do_QueryInterface(observer));
+    PR_ASSERT(observer);
+    ob->OnStopRequest(nsnull, nsnull, status, nsnull);
+  } 
+
+  return NS_OK;
+}
+
+nsresult imgRequest::RemoveObserver(imgIDecoderObserver *observer, nsresult status)
+{
+  LOG_SCOPE_WITH_PARAM(gImgLog, "imgRequest::RemoveObserver", "observer", observer);
+
+  mObservers.RemoveElement(NS_STATIC_CAST(void*, observer));
+
+  if (mObservers.Count() == 0) {
+    if (mImage) {
+      PRUint32 nframes;
+      mImage->GetNumFrames(&nframes);
+      if (nframes > 1) {
+        PR_LOG(gImgLog, PR_LOG_DEBUG,
+               ("[this=%p] imgRequest::RemoveObserver -- stopping animation\n", this));
+
+        mImage->StopAnimation();
+      }
+    }
+
+    if (mChannel && mLoading) {
+      PR_LOG(gImgLog, PR_LOG_DEBUG,
+             ("[this=%p] imgRequest::RemoveObserver -- load in progress.  canceling\n", this));
+
+      this->RemoveFromCache();
+      this->Cancel(NS_BINDING_ABORTED);
+
+      if (!(mState & onStopDecode)) {
+        // make sure that observer gets an onStopRequest message sent to it
+        observer->OnStopDecode(nsnull, nsnull, NS_IMAGELIB_ERROR_FAILURE, nsnull);
+      }
+
+      if (!(mState & onStopRequest)) {
+        // make sure that observer gets an onStopRequest message sent to it
+        nsCOMPtr<nsIStreamObserver> ob(do_QueryInterface(observer));
+        PR_ASSERT(observer);
+        ob->OnStopRequest(nsnull, nsnull, NS_BINDING_ABORTED, nsnull);
+      }
+    }
+  }
+
+  return NS_OK;
+}
+
+PRBool imgRequest::RemoveFromCache()
+{
+  LOG_SCOPE(gImgLog, "imgRequest::RemoveFromCache");
+
+#ifdef MOZ_NEW_CACHE
+
+  if (mCacheEntry) {
+    mCacheEntry->Doom();
+    mCacheEntry = nsnull;
+  } else {
+    NS_WARNING("imgRequest::RemoveFromCache -- no entry!");
+  }
+
+#endif
+
+  return PR_TRUE;
+}
+
+
+/**  nsIRequest / imgIRequest methods **/
+
+/* readonly attribute wstring name; */
+NS_IMETHODIMP imgRequest::GetName(PRUnichar * *aName)
+{
+    NS_NOTYETIMPLEMENTED("imgRequest::GetName");
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* boolean isPending (); */
+NS_IMETHODIMP imgRequest::IsPending(PRBool *_retval)
+{
+    NS_NOTYETIMPLEMENTED("imgRequest::IsPending");
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* readonly attribute nsresult status; */
+NS_IMETHODIMP imgRequest::GetStatus(nsresult *aStatus)
+{
+    NS_NOTYETIMPLEMENTED("imgRequest::GetStatus");
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* void cancel (in nsresult status); */
+NS_IMETHODIMP imgRequest::Cancel(nsresult status)
+{
+  LOG_SCOPE(gImgLog, "imgRequest::Cancel");
+
+  if (mImage) {
+    PRUint32 nframes;
+    mImage->GetNumFrames(&nframes);
+    if (nframes > 1) {
+      PR_LOG(gImgLog, PR_LOG_DEBUG,
+             ("[this=%p] imgRequest::RemoveObserver -- stopping animation\n", this));
+
+      mImage->StopAnimation();
+    }
+  }
+
+  if (mChannel && mLoading)
+    mChannel->Cancel(NS_BINDING_ABORTED); // should prolly use status here
+
+  return NS_OK;
+}
+
+/* void suspend (); */
+NS_IMETHODIMP imgRequest::Suspend()
+{
+    NS_NOTYETIMPLEMENTED("imgRequest::Suspend");
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* void resume (); */
+NS_IMETHODIMP imgRequest::Resume()
+{
+    NS_NOTYETIMPLEMENTED("imgRequest::Resume");
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/** imgIRequest methods **/
+
+/* readonly attribute imgIContainer image; */
+NS_IMETHODIMP imgRequest::GetImage(imgIContainer * *aImage)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequest::GetImage\n", this));
+
+  *aImage = mImage;
+  NS_IF_ADDREF(*aImage);
+  return NS_OK;
+}
+
+/* readonly attribute unsigned long imageStatus; */
+NS_IMETHODIMP imgRequest::GetImageStatus(PRUint32 *aStatus)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequest::GetImageStatus\n", this));
+
+  *aStatus = mStatus;
+  return NS_OK;
+}
+
+/* readonly attribute nsIURI URI; */
+NS_IMETHODIMP imgRequest::GetURI(nsIURI **aURI)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequest::GetURI\n", this));
+
+  if (mChannel)
+    return mChannel->GetOriginalURI(aURI);
+  else if (mURI) {
+    *aURI = mURI;
+    NS_ADDREF(*aURI);
+    return NS_OK;
+  }
+
+  return NS_ERROR_FAILURE;
+}
+
+/* readonly attribute imgIDecoderObserver decoderObserver; */
+NS_IMETHODIMP imgRequest::GetDecoderObserver(imgIDecoderObserver **aDecoderObserver)
+{
+  return NS_ERROR_FAILURE;
+}
+
+
+/** imgIContainerObserver methods **/
+
+/* [noscript] void frameChanged (in imgIContainer container, in nsISupports cx, in gfxIImageFrame newframe, in nsRect dirtyRect); */
+NS_IMETHODIMP imgRequest::FrameChanged(imgIContainer *container, nsISupports *cx, gfxIImageFrame *newframe, nsRect * dirtyRect)
+{
+  LOG_SCOPE(gImgLog, "imgRequest::FrameChanged");
+
+  PRInt32 i = -1;
+  PRInt32 count = mObservers.Count();
+
+  while (++i < count) {
+    imgIDecoderObserver *ob = NS_STATIC_CAST(imgIDecoderObserver*, mObservers[i]);
+    if (ob) ob->FrameChanged(container, cx, newframe, dirtyRect);
+  }
+
+  return NS_OK;
+}
+
+/** imgIDecoderObserver methods **/
+
+/* void onStartDecode (in imgIRequest request, in nsISupports cx); */
+NS_IMETHODIMP imgRequest::OnStartDecode(imgIRequest *request, nsISupports *cx)
+{
+  LOG_SCOPE(gImgLog, "imgRequest::OnStartDecode");
+
+  mState |= onStartDecode;
+
+  PRInt32 i = -1;
+  PRInt32 count = mObservers.Count();
+
+  while (++i < count) {
+    imgIDecoderObserver *ob = NS_STATIC_CAST(imgIDecoderObserver*, mObservers[i]);
+    if (ob) ob->OnStartDecode(request, cx);
+  }
+
+  return NS_OK;
+}
+
+/* void onStartContainer (in imgIRequest request, in nsISupports cx, in imgIContainer image); */
+NS_IMETHODIMP imgRequest::OnStartContainer(imgIRequest *request, nsISupports *cx, imgIContainer *image)
+{
+  LOG_SCOPE(gImgLog, "imgRequest::OnStartContainer");
+
+  mState |= onStartContainer;
+
+  mStatus |= imgIRequest::STATUS_SIZE_AVAILABLE;
+
+  PRInt32 i = -1;
+  PRInt32 count = mObservers.Count();
+
+  while (++i < count) {
+    imgIDecoderObserver *ob = NS_STATIC_CAST(imgIDecoderObserver*, mObservers[i]);
+    if (ob) ob->OnStartContainer(request, cx, image);
+  }
+
+  return NS_OK;
+}
+
+/* void onStartFrame (in imgIRequest request, in nsISupports cx, in gfxIImageFrame frame); */
+NS_IMETHODIMP imgRequest::OnStartFrame(imgIRequest *request, nsISupports *cx, gfxIImageFrame *frame)
+{
+  LOG_SCOPE(gImgLog, "imgRequest::OnStartFrame");
+
+  PRInt32 i = -1;
+  PRInt32 count = mObservers.Count();
+
+  while (++i < count) {
+    imgIDecoderObserver *ob = NS_STATIC_CAST(imgIDecoderObserver*, mObservers[i]);
+    if (ob) ob->OnStartFrame(request, cx, frame);
+  }
+
+  return NS_OK;
+}
+
+/* [noscript] void onDataAvailable (in imgIRequest request, in nsISupports cx, in gfxIImageFrame frame, [const] in nsRect rect); */
+NS_IMETHODIMP imgRequest::OnDataAvailable(imgIRequest *request, nsISupports *cx, gfxIImageFrame *frame, const nsRect * rect)
+{
+  LOG_SCOPE(gImgLog, "imgRequest::OnDataAvailable");
+
+  nsCOMPtr<imgIDecoderObserver> container = do_QueryInterface(mImage);
+  container->OnDataAvailable(request, cx, frame, rect);
+  
+  PRInt32 i = -1;
+  PRInt32 count = mObservers.Count();
+
+  while (++i < count) {
+    imgIDecoderObserver *ob = NS_STATIC_CAST(imgIDecoderObserver*, mObservers[i]);
+    if (ob) ob->OnDataAvailable(request, cx, frame, rect);
+  }
+
+  return NS_OK;
+}
+
+/* void onStopFrame (in imgIRequest request, in nsISupports cx, in gfxIImageFrame frame); */
+NS_IMETHODIMP imgRequest::OnStopFrame(imgIRequest *request, nsISupports *cx, gfxIImageFrame *frame)
+{
+  NS_ASSERTION(frame, "imgRequest::OnStopFrame called with NULL frame");
+
+  LOG_SCOPE(gImgLog, "imgRequest::OnStopFrame");
+
+  PRInt32 i = -1;
+  PRInt32 count = mObservers.Count();
+
+#ifdef MOZ_NEW_CACHE
+  if (mCacheEntry) {
+    PRUint32 cacheSize = 0;
+
+    mCacheEntry->GetDataSize(&cacheSize);
+
+    PRUint32 imageSize = 0;
+    PRUint32 alphaSize = 0;
+
+    frame->GetImageDataLength(&imageSize);
+    frame->GetAlphaDataLength(&alphaSize);
+
+    mCacheEntry->SetDataSize(cacheSize + imageSize + alphaSize);
+  }
+#endif
+
+  while (++i < count) {
+    imgIDecoderObserver *ob = NS_STATIC_CAST(imgIDecoderObserver*, mObservers[i]);
+    if (ob) ob->OnStopFrame(request, cx, frame);
+  }
+
+  return NS_OK;
+}
+
+/* void onStopContainer (in imgIRequest request, in nsISupports cx, in imgIContainer image); */
+NS_IMETHODIMP imgRequest::OnStopContainer(imgIRequest *request, nsISupports *cx, imgIContainer *image)
+{
+  LOG_SCOPE(gImgLog, "imgRequest::OnStopContainer");
+
+  mState |= onStopContainer;
+
+  PRInt32 i = -1;
+  PRInt32 count = mObservers.Count();
+
+  while (++i < count) {
+    imgIDecoderObserver *ob = NS_STATIC_CAST(imgIDecoderObserver*, mObservers[i]);
+    if (ob) ob->OnStopContainer(request, cx, image);
+  }
+
+  return NS_OK;
+}
+
+/* void onStopDecode (in imgIRequest request, in nsISupports cx, in nsresult status, in wstring statusArg); */
+NS_IMETHODIMP imgRequest::OnStopDecode(imgIRequest *aRequest, nsISupports *aCX, nsresult aStatus, const PRUnichar *aStatusArg)
+{
+  LOG_SCOPE(gImgLog, "imgRequest::OnStopDecode");
+
+  if (mState & onStopDecode) {
+    NS_WARNING("OnStopDecode called multiple times.");
+    return NS_OK;
+  }
+
+  mState |= onStopDecode;
+
+  if (!(mStatus & imgIRequest::STATUS_ERROR) && NS_FAILED(aStatus))
+    mStatus |= imgIRequest::STATUS_ERROR;
+
+  PRInt32 i = -1;
+  PRInt32 count = mObservers.Count();
+
+  nsresult status;
+  if (mStatus & imgIRequest::STATUS_LOAD_COMPLETE)
+    status = NS_IMAGELIB_SUCCESS_LOAD_FINISHED;
+  else if (mStatus & imgIRequest::STATUS_ERROR)
+    status = NS_IMAGELIB_ERROR_FAILURE;
+
+  while (++i < count) {
+    imgIDecoderObserver *ob = NS_STATIC_CAST(imgIDecoderObserver*, mObservers[i]);
+    if (ob) ob->OnStopDecode(aRequest, aCX, status, aStatusArg);
+  }
+
+  return NS_OK;
+}
+
+
+
+
+
+
+/** nsIStreamObserver methods **/
+
+/* void onStartRequest (in nsIRequest request, in nsISupports ctxt); */
+NS_IMETHODIMP imgRequest::OnStartRequest(nsIRequest *aRequest, nsISupports *ctxt)
+{
+  LOG_SCOPE(gImgLog, "imgRequest::OnStartRequest");
+
+  NS_ASSERTION(!mDecoder, "imgRequest::OnStartRequest -- we already have a decoder");
+  NS_ASSERTION(!mLoading, "imgRequest::OnStartRequest -- we are loading again?");
+
+  /* set our loading flag to true */
+  mLoading = PR_TRUE;
+
+  /* notify our kids */
+  PRInt32 i = -1;
+  PRInt32 count = mObservers.Count();
+
+  while (++i < count) {
+    imgIDecoderObserver *iob = NS_STATIC_CAST(imgIDecoderObserver*, mObservers[i]);
+    if (iob) {
+      nsCOMPtr<nsIStreamObserver> ob(do_QueryInterface(iob));
+      if (ob) ob->OnStartRequest(aRequest, ctxt);
+    }
+  }
+
+  /* do our real work */
+  nsCOMPtr<nsIChannel> chan(do_QueryInterface(aRequest));
+
+  if (!mChannel) {
+    PR_LOG(gImgLog, PR_LOG_ALWAYS,
+           (" `->  Channel already stopped or no channel!?.\n"));
+
+    return NS_ERROR_FAILURE;
+  }
+
+  nsCOMPtr<nsIHTTPChannel> httpChannel(do_QueryInterface(chan));
+  if (httpChannel) {
+    PRUint32 httpStatus;
+    httpChannel->GetResponseStatus(&httpStatus);
+    if (httpStatus == 404) {
+      PR_LOG(gImgLog, PR_LOG_DEBUG,
+             ("[this=%p] imgRequest::OnStartRequest -- http status = 404. canceling.\n", this));
+
+      mStatus |= imgIRequest::STATUS_ERROR;
+      this->Cancel(NS_BINDING_ABORTED);
+      this->RemoveFromCache();
+
+      return NS_BINDING_ABORTED;
+    }
+
+  }
+
+  /* get the expires info */
+#if defined(MOZ_NEW_CACHE)
+  if (mCacheEntry) {
+    nsCOMPtr<nsICachingChannel> cacheChannel(do_QueryInterface(chan));
+    if (cacheChannel) {
+      nsCOMPtr<nsISupports> cacheToken;
+      cacheChannel->GetCacheToken(getter_AddRefs(cacheToken));
+      if (cacheToken) {
+        nsCOMPtr<nsICacheEntryDescriptor> entryDesc(do_QueryInterface(cacheToken));
+        if (entryDesc) {
+          PRUint32 expiration;
+          /* get the expiration time from the caching channel's token */
+          entryDesc->GetExpirationTime(&expiration);
+
+          /* set the expiration time on our entry */
+          mCacheEntry->SetExpirationTime(expiration);
+        }
+      }
+    }
+  }
+#endif
+
+  return NS_OK;
+}
+
+/* void onStopRequest (in nsIRequest request, in nsISupports ctxt, in nsresult status, in wstring statusArg); */
+NS_IMETHODIMP imgRequest::OnStopRequest(nsIRequest *aRequest, nsISupports *ctxt, nsresult status, const PRUnichar *statusArg)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequest::OnStopRequest\n", this));
+
+  NS_ASSERTION(mChannel && mLoading, "imgRequest::OnStopRequest -- received multiple OnStopRequest");
+
+  mState |= onStopRequest;
+
+  /* set our loading flag to false */
+  mLoading = PR_FALSE;
+
+  /* set our processing flag to false */
+  mProcessing = PR_FALSE;
+
+#ifdef MOZ_NEW_CACHE
+  /* break the cycle from the cache entry. */
+  mCacheEntry = nsnull;
+#endif
+
+  if (NS_FAILED(status)) {
+    mStatus |= imgIRequest::STATUS_ERROR;
+    this->RemoveFromCache();
+    this->Cancel(status); // stops animations
+  } else {
+    mStatus |= imgIRequest::STATUS_LOAD_COMPLETE;
+  }
+
+  mChannel->GetOriginalURI(getter_AddRefs(mURI));
+  mChannel = nsnull; // we no longer need the channel
+
+  if (mDecoder) {
+    mDecoder->Flush();
+    mDecoder->Close();
+    mDecoder = nsnull; // release the decoder so that it can rest peacefully ;)
+  }
+
+  /* notify the kids */
+  PRInt32 i = -1;
+  PRInt32 count = mObservers.Count();
+
+  while (++i < count) {
+    void *item = NS_STATIC_CAST(void *, mObservers[i]);
+    if (item) {
+      imgIDecoderObserver *iob = NS_STATIC_CAST(imgIDecoderObserver*, item);
+      if (iob) {
+        nsCOMPtr<nsIStreamObserver> ob(do_QueryInterface(iob));
+        if (ob) ob->OnStopRequest(aRequest, ctxt, status, statusArg);
+      }
+    }
+  }
+
+  // if there was an error loading the image, (mState & onStopDecode) won't be true.
+  // Send an onStopDecode message
+  if (!(mState & onStopDecode)) {
+    this->OnStopDecode(nsnull, nsnull, status, statusArg);
+  }
+
+  return NS_OK;
+}
+
+
+
+
+/* prototype for this defined below */
+static NS_METHOD sniff_mimetype_callback(nsIInputStream* in, void* closure, const char* fromRawSegment,
+                                         PRUint32 toOffset, PRUint32 count, PRUint32 *writeCount);
+
+
+/** nsIStreamListener methods **/
+
+/* void onDataAvailable (in nsIRequest request, in nsISupports ctxt, in nsIInputStream inStr, in unsigned long sourceOffset, in unsigned long count); */
+NS_IMETHODIMP imgRequest::OnDataAvailable(nsIRequest *aRequest, nsISupports *ctxt, nsIInputStream *inStr, PRUint32 sourceOffset, PRUint32 count)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequest::OnDataAvailable\n", this));
+
+  NS_ASSERTION(mChannel, "imgRequest::OnDataAvailable -- no channel!");
+
+
+  if (!mProcessing) {
+    /* set our processing flag to true if this is the first OnDataAvailable() */
+    mProcessing = PR_TRUE;
+
+    /* look at the first few bytes and see if we can tell what the data is from that
+     * since servers tend to lie. :(
+     */
+    PRUint32 out;
+    inStr->ReadSegments(sniff_mimetype_callback, this, count, &out);
+
+#ifdef NS_DEBUG
+    /* NS_WARNING if the content type from the channel isn't the same if the sniffing */
+#endif
+
+    if (!mContentType.get()) {
+      nsXPIDLCString contentType;
+      nsresult rv = mChannel->GetContentType(getter_Copies(contentType));
+
+      if (NS_FAILED(rv)) {
+        PR_LOG(gImgLog, PR_LOG_ERROR,
+               ("[this=%p] imgRequest::OnStartRequest -- Content type unavailable from the channel\n",
+                this));
+
+        this->RemoveFromCache();
+
+        return NS_BINDING_ABORTED; //NS_BASE_STREAM_CLOSED;
+      }
+
+      mContentType = contentType;
+    }
+
+#if defined(PR_LOGGING)
+    PR_LOG(gImgLog, PR_LOG_DEBUG,
+           ("[this=%p] imgRequest::OnStartRequest -- Content type is %s\n", this, mContentType.get()));
+#endif
+
+    nsCAutoString conid("@mozilla.org/image/decoder;2?type=");
+    conid += mContentType.get();
+
+    mDecoder = do_CreateInstance(conid);
+
+    if (!mDecoder) {
+      PR_LOG(gImgLog, PR_LOG_WARNING,
+             ("[this=%p] imgRequest::OnStartRequest -- Decoder not available\n", this));
+
+      // no image decoder for this mimetype :(
+      this->Cancel(NS_BINDING_ABORTED);
+      this->RemoveFromCache();
+
+      // XXX notify the person that owns us now that wants the imgIContainer off of us?
+      return NS_IMAGELIB_ERROR_NO_DECODER;
+    }
+
+    mDecoder->Init(NS_STATIC_CAST(imgIRequest*, this));
+
+  }
+
+  if (!mDecoder) {
+    PR_LOG(gImgLog, PR_LOG_WARNING,
+           ("[this=%p] imgRequest::OnDataAvailable -- no decoder\n", this));
+
+    return NS_BASE_STREAM_CLOSED;
+  }
+
+  PRUint32 wrote;
+  nsresult rv = mDecoder->WriteFrom(inStr, count, &wrote);
+
+  return NS_OK;
+}
+
+static NS_METHOD sniff_mimetype_callback(nsIInputStream* in,
+                                         void* closure,
+                                         const char* fromRawSegment,
+                                         PRUint32 toOffset,
+                                         PRUint32 count,
+                                         PRUint32 *writeCount)
+{
+  imgRequest *request = NS_STATIC_CAST(imgRequest*, closure);
+
+  NS_ASSERTION(request, "request is null!");
+
+  if (count > 0)
+    request->SniffMimeType(fromRawSegment, count);
+
+  *writeCount = 0;
+  return NS_ERROR_FAILURE;
+}
+
+void
+imgRequest::SniffMimeType(const char *buf, PRUint32 len)
+{
+  /* Is it a GIF? */
+  if (len >= 4 && !nsCRT::strncmp(buf, "GIF8", 4))  {
+    mContentType = NS_LITERAL_CSTRING("image/gif");
+    return;
+  }
+
+  /* or a PNG? */
+  if (len >= 4 && ((unsigned char)buf[0]==0x89 &&
+                   (unsigned char)buf[1]==0x50 &&
+                   (unsigned char)buf[2]==0x4E &&
+                   (unsigned char)buf[3]==0x47))
+  { 
+    mContentType = NS_LITERAL_CSTRING("image/png");
+    return;
+  }
+
+  /* maybe a JPEG (JFIF)? */
+  /* JFIF files start with SOI APP0 but older files can start with SOI DQT
+   * so we test for SOI followed by any marker, i.e. FF D8 FF
+   * this will also work for SPIFF JPEG files if they appear in the future.
+   *
+   * (JFIF is 0XFF 0XD8 0XFF 0XE0 <skip 2> 0X4A 0X46 0X49 0X46 0X00)
+   */
+  if (len >= 3 &&
+     ((unsigned char)buf[0])==0xFF &&
+     ((unsigned char)buf[1])==0xD8 &&
+     ((unsigned char)buf[2])==0xFF)
+  {
+    mContentType = NS_LITERAL_CSTRING("image/jpeg");
+    return;
+  }
+
+  /* or how about ART? */
+  /* ART begins with JG (4A 47). Major version offset 2.
+   * Minor version offset 3. Offset 4 must be NULL.
+   */
+  if (len >= 5 &&
+   ((unsigned char) buf[0])==0x4a &&
+   ((unsigned char) buf[1])==0x47 &&
+   ((unsigned char) buf[4])==0x00 )
+  {
+    mContentType = NS_LITERAL_CSTRING("image/x-jg");
+    return;
+  }
+
+  /* none of the above?  I give up */
+}

mozilla/modules/libpr0n/src/imgRequest.h

@@ -0,0 +1,113 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#ifndef imgRequest_h__
+#define imgRequest_h__
+
+#include "imgIRequest.h"
+
+#include "nsIRunnable.h"
+
+#include "nsIChannel.h"
+#include "nsIURI.h"
+#include "imgIContainer.h"
+#include "imgIDecoder.h"
+#include "imgIDecoderObserver.h"
+#include "nsIStreamListener.h"
+#include "nsCOMPtr.h"
+
+#include "nsVoidArray.h"
+#include "nsWeakReference.h"
+
+#include "nsString.h"
+
+#ifdef MOZ_NEW_CACHE
+#include "nsICacheEntryDescriptor.h"
+#else
+class nsICacheEntryDescriptor;
+#endif
+
+#define NS_IMGREQUEST_CID \
+{ /* 9f733dd6-1dd1-11b2-8cdf-effb70d1ea71 */         \
+     0x9f733dd6,                                     \
+     0x1dd1,                                         \
+     0x11b2,                                         \
+    {0x8c, 0xdf, 0xef, 0xfb, 0x70, 0xd1, 0xea, 0x71} \
+}
+
+enum {
+  onStartDecode = 0x1,
+  onStartContainer = 0x2,
+  onStopContainer = 0x4,
+  onStopDecode = 0x8,
+  onStopRequest = 0x16
+};
+
+class imgRequest : public imgIRequest,
+                   public imgIDecoderObserver, 
+                   public nsIStreamListener,
+                   public nsSupportsWeakReference
+{
+public:
+  imgRequest();
+  virtual ~imgRequest();
+
+  /* additional members */
+  nsresult Init(nsIChannel *aChannel, nsICacheEntryDescriptor *aCacheEntry);
+  nsresult AddObserver(imgIDecoderObserver *observer);
+  nsresult RemoveObserver(imgIDecoderObserver *observer, nsresult status);
+
+  PRBool RemoveFromCache();
+
+  void SniffMimeType(const char *buf, PRUint32 len);
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_IMGIREQUEST
+  NS_DECL_NSIREQUEST
+  NS_DECL_IMGIDECODEROBSERVER
+  NS_DECL_IMGICONTAINEROBSERVER
+  NS_DECL_NSISTREAMLISTENER
+  NS_DECL_NSISTREAMOBSERVER
+
+private:
+  nsCOMPtr<nsIChannel> mChannel;
+  nsCOMPtr<nsIURI> mURI;
+  nsCOMPtr<imgIContainer> mImage;
+  nsCOMPtr<imgIDecoder> mDecoder;
+
+  nsVoidArray mObservers;
+
+  PRBool mLoading;
+  PRBool mProcessing;
+
+  PRUint32 mStatus;
+  PRUint32 mState;
+
+  nsCString mContentType;
+
+#ifdef MOZ_NEW_CACHE
+  nsCOMPtr<nsICacheEntryDescriptor> mCacheEntry; /* we hold on to this to this so long as we have observers */
+#endif
+};
+
+#endif

mozilla/modules/libpr0n/src/imgRequestProxy.cpp

@@ -0,0 +1,316 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "imgRequestProxy.h"
+
+#include "nsXPIDLString.h"
+
+#include "nsIInputStream.h"
+#include "imgILoader.h"
+#include "nsIComponentManager.h"
+
+#include "nsIComponentManager.h"
+#include "nsIServiceManager.h"
+
+#include "imgRequest.h"
+
+#include "nsString.h"
+
+#include "DummyChannel.h"
+
+#include "nspr.h"
+
+#include "ImageLogging.h"
+
+NS_IMPL_ISUPPORTS5(imgRequestProxy, imgIRequest, nsIRequest, imgIDecoderObserver, imgIContainerObserver, nsIStreamObserver)
+
+imgRequestProxy::imgRequestProxy() :
+  mCanceled(PR_FALSE)
+{
+  NS_INIT_ISUPPORTS();
+  /* member initializers and constructor code */
+}
+
+imgRequestProxy::~imgRequestProxy()
+{
+  /* destructor code */
+
+  // XXX pav
+  // it isn't the job of the request proxy to cancel itself.
+  // if your object goes away and you want to cancel the load, then do it yourself.
+
+  // cancel here for now until i make this work right like the above comment
+  Cancel(NS_ERROR_FAILURE);
+}
+
+
+
+nsresult imgRequestProxy::Init(imgRequest *request, nsILoadGroup *aLoadGroup, imgIDecoderObserver *aObserver, nsISupports *cx)
+{
+  PR_ASSERT(request);
+
+  LOG_SCOPE_WITH_PARAM(gImgLog, "imgRequestProxy::Init", "request", request);
+
+  mOwner = NS_STATIC_CAST(imgIRequest*, request);
+
+  mObserver = aObserver;
+  // XXX we should save off the thread we are getting called on here so that we can proxy all calls to mDecoder to it.
+
+  mContext = cx;
+
+  // XXX we should only create a channel, etc if the image isn't finished loading already.
+
+  nsISupports *inst = nsnull;
+  inst = new DummyChannel(this, aLoadGroup);
+  NS_ADDREF(inst);
+  nsresult res = inst->QueryInterface(NS_GET_IID(nsIChannel), getter_AddRefs(mDummyChannel));
+  NS_RELEASE(inst);
+
+  nsCOMPtr<nsILoadGroup> loadGroup;
+  mDummyChannel->GetLoadGroup(getter_AddRefs(loadGroup));
+  if (loadGroup) {
+    loadGroup->AddRequest(mDummyChannel, cx);
+  }
+
+  request->AddObserver(this);
+
+  return NS_OK;
+}
+
+/**  nsIRequest / imgIRequest methods **/
+
+/* readonly attribute wstring name; */
+NS_IMETHODIMP imgRequestProxy::GetName(PRUnichar * *aName)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* boolean isPending (); */
+NS_IMETHODIMP imgRequestProxy::IsPending(PRBool *_retval)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* readonly attribute nsresult status; */
+NS_IMETHODIMP imgRequestProxy::GetStatus(nsresult *aStatus)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* void cancel (in nsresult status); */
+NS_IMETHODIMP imgRequestProxy::Cancel(nsresult status)
+{
+  if (mCanceled)
+    return NS_ERROR_FAILURE;
+
+  LOG_SCOPE(gImgLog, "imgRequestProxy::Cancel");
+
+  mCanceled = PR_TRUE;
+
+  NS_ASSERTION(mOwner, "canceling request proxy twice");
+
+  nsresult rv = NS_REINTERPRET_CAST(imgRequest*, mOwner.get())->RemoveObserver(this, status);
+
+  mOwner = nsnull;
+
+  return rv;
+}
+
+/* void suspend (); */
+NS_IMETHODIMP imgRequestProxy::Suspend()
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* void resume (); */
+NS_IMETHODIMP imgRequestProxy::Resume()
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/**  imgIRequest methods **/
+
+/* readonly attribute imgIContainer image; */
+NS_IMETHODIMP imgRequestProxy::GetImage(imgIContainer * *aImage)
+{
+  if (!mOwner)
+    return NS_ERROR_FAILURE;
+
+  return mOwner->GetImage(aImage);
+}
+
+/* readonly attribute unsigned long imageStatus; */
+NS_IMETHODIMP imgRequestProxy::GetImageStatus(PRUint32 *aStatus)
+{
+  if (!mOwner) {
+    *aStatus = imgIRequest::STATUS_ERROR;
+    return NS_ERROR_FAILURE;
+  }
+
+  return mOwner->GetImageStatus(aStatus);
+}
+
+/* readonly attribute nsIURI URI; */
+NS_IMETHODIMP imgRequestProxy::GetURI(nsIURI **aURI)
+{
+  if (!mOwner)
+    return NS_ERROR_FAILURE;
+
+  return mOwner->GetURI(aURI);
+}
+
+/* readonly attribute imgIDecoderObserver decoderObserver; */
+NS_IMETHODIMP imgRequestProxy::GetDecoderObserver(imgIDecoderObserver **aDecoderObserver)
+{
+  *aDecoderObserver = mObserver;
+  NS_IF_ADDREF(*aDecoderObserver);
+  return NS_OK;
+}
+
+
+/** imgIContainerObserver methods **/
+
+/* [noscript] void frameChanged (in imgIContainer container, in nsISupports cx, in gfxIImageFrame newframe, in nsRect dirtyRect); */
+NS_IMETHODIMP imgRequestProxy::FrameChanged(imgIContainer *container, nsISupports *cx, gfxIImageFrame *newframe, nsRect * dirtyRect)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequestProxy::FrameChanged\n", this));
+
+  if (mObserver)
+    mObserver->FrameChanged(container, mContext, newframe, dirtyRect);
+
+  return NS_OK;
+}
+
+/** imgIDecoderObserver methods **/
+
+/* void onStartDecode (in imgIRequest request, in nsISupports cx); */
+NS_IMETHODIMP imgRequestProxy::OnStartDecode(imgIRequest *request, nsISupports *cx)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequestProxy::OnStartDecode\n", this));
+
+  if (mObserver)
+    mObserver->OnStartDecode(this, mContext);
+
+  return NS_OK;
+}
+
+/* void onStartContainer (in imgIRequest request, in nsISupports cx, in imgIContainer image); */
+NS_IMETHODIMP imgRequestProxy::OnStartContainer(imgIRequest *request, nsISupports *cx, imgIContainer *image)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequestProxy::OnStartContainer\n", this));
+
+  if (mObserver)
+    mObserver->OnStartContainer(this, mContext, image);
+
+  return NS_OK;
+}
+
+/* void onStartFrame (in imgIRequest request, in nsISupports cx, in gfxIImageFrame frame); */
+NS_IMETHODIMP imgRequestProxy::OnStartFrame(imgIRequest *request, nsISupports *cx, gfxIImageFrame *frame)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequestProxy::OnStartFrame\n", this));
+
+  if (mObserver)
+    mObserver->OnStartFrame(this, mContext, frame);
+
+  return NS_OK;
+}
+
+/* [noscript] void onDataAvailable (in imgIRequest request, in nsISupports cx, in gfxIImageFrame frame, [const] in nsRect rect); */
+NS_IMETHODIMP imgRequestProxy::OnDataAvailable(imgIRequest *request, nsISupports *cx, gfxIImageFrame *frame, const nsRect * rect)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequestProxy::OnDataAvailable\n", this));
+
+  if (mObserver)
+    mObserver->OnDataAvailable(this, mContext, frame, rect);
+
+  return NS_OK;
+}
+
+/* void onStopFrame (in imgIRequest request, in nsISupports cx, in gfxIImageFrame frame); */
+NS_IMETHODIMP imgRequestProxy::OnStopFrame(imgIRequest *request, nsISupports *cx, gfxIImageFrame *frame)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequestProxy::OnStopFrame\n", this));
+
+  if (mObserver)
+    mObserver->OnStopFrame(this, mContext, frame);
+
+  return NS_OK;
+}
+
+/* void onStopContainer (in imgIRequest request, in nsISupports cx, in imgIContainer image); */
+NS_IMETHODIMP imgRequestProxy::OnStopContainer(imgIRequest *request, nsISupports *cx, imgIContainer *image)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequestProxy::OnStopContainer\n", this));
+
+  if (mObserver)
+    mObserver->OnStopContainer(this, mContext, image);
+
+  return NS_OK;
+}
+
+/* void onStopDecode (in imgIRequest request, in nsISupports cx, in nsresult status, in wstring statusArg); */
+NS_IMETHODIMP imgRequestProxy::OnStopDecode(imgIRequest *request, nsISupports *cx, nsresult status, const PRUnichar *statusArg)
+{
+  PR_LOG(gImgLog, PR_LOG_DEBUG,
+         ("[this=%p] imgRequestProxy::OnStopDecode\n", this));
+
+  if (mObserver)
+    mObserver->OnStopDecode(this, mContext, status, statusArg);
+
+  return NS_OK;
+}
+
+
+
+
+
+/* void onStartRequest (in nsIRequest request, in nsISupports ctxt); */
+NS_IMETHODIMP imgRequestProxy::OnStartRequest(nsIRequest *request, nsISupports *ctxt)
+{
+  return NS_OK;
+}
+
+/* void onStopRequest (in nsIRequest request, in nsISupports ctxt, in nsresult statusCode, in wstring statusText); */
+NS_IMETHODIMP imgRequestProxy::OnStopRequest(nsIRequest *request, nsISupports *ctxt, nsresult statusCode, const PRUnichar *statusText)
+{
+  if (!mDummyChannel)
+    return NS_OK;
+
+  nsCOMPtr<nsILoadGroup> loadGroup;
+  mDummyChannel->GetLoadGroup(getter_AddRefs(loadGroup));
+  if (loadGroup) {
+    loadGroup->RemoveRequest(mDummyChannel, mContext, statusCode, statusText);
+  }
+  mDummyChannel = nsnull;
+
+  return NS_OK;
+}
+

mozilla/modules/libpr0n/src/imgRequestProxy.h

@@ -0,0 +1,70 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation.
+ * All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+#include "imgRequest.h"
+#include "imgIDecoderObserver.h"
+
+#include "imgIContainer.h"
+#include "imgIDecoder.h"
+#include "nsIStreamObserver.h"
+#include "nsIChannel.h"
+#include "nsILoadGroup.h"
+#include "nsCOMPtr.h"
+
+#define NS_IMGREQUESTPROXY_CID \
+{ /* 20557898-1dd2-11b2-8f65-9c462ee2bc95 */         \
+     0x20557898,                                     \
+     0x1dd2,                                         \
+     0x11b2,                                         \
+    {0x8f, 0x65, 0x9c, 0x46, 0x2e, 0xe2, 0xbc, 0x95} \
+}
+
+class imgRequestProxy : public imgIRequest,
+                        public imgIDecoderObserver,
+                        public nsIStreamObserver
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_IMGIREQUEST
+  NS_DECL_NSIREQUEST
+  NS_DECL_IMGIDECODEROBSERVER
+  NS_DECL_IMGICONTAINEROBSERVER
+  NS_DECL_NSISTREAMOBSERVER
+
+  imgRequestProxy();
+  virtual ~imgRequestProxy();
+
+  /* additional members */
+  nsresult Init(imgRequest *request, nsILoadGroup *aLoadGroup, imgIDecoderObserver *aObserver, nsISupports *cx);
+
+private:
+  nsCOMPtr<imgIDecoderObserver> mObserver;
+
+  nsCOMPtr<nsISupports> mContext;
+
+  nsCOMPtr<imgIRequest> mOwner;
+
+  nsCOMPtr<nsIChannel> mDummyChannel;
+
+  PRBool mCanceled;
+};

mozilla/modules/libpr0n/src/makefile.win

@@ -0,0 +1,56 @@
+#!nmake
+# 
+# The contents of this file are subject to the Mozilla Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+# 
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+# 
+# The Original Code is mozilla.org code
+# 
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are 
+# Copyright (C) 2001 Netscape Communications Corporation.  All
+# Rights Reserved.
+# 
+# Contributor(s):
+#    Stuart Parmenter <pavlov@netscape.com>
+#
+
+DEPTH=..\..\..
+include <$(DEPTH)/config/config.mak>
+
+MODULE			= imglib2
+LIBRARY_NAME	= imglib2
+DLL			= $(OBJDIR)\$(LIBRARY_NAME).dll
+MAKE_OBJ_TYPE	= DLL
+
+OBJS	= \
+		.\$(OBJDIR)\DummyChannel.obj \
+		.\$(OBJDIR)\ImageCache.obj \
+		.\$(OBJDIR)\ImageFactory.obj \
+		.\$(OBJDIR)\imgContainer.obj \
+		.\$(OBJDIR)\imgLoader.obj \
+		.\$(OBJDIR)\imgRequest.obj \
+		.\$(OBJDIR)\imgRequestProxy.obj \
+		$(NULL)
+
+LLIBS=\
+	$(LIBNSPR) \
+	$(DIST)\lib\xpcom.lib \
+	$(DIST)\lib\gkgfxwin.lib \
+	$(NULL)
+
+include <$(DEPTH)\config\rules.mak>
+
+install:: $(DLL)
+	$(MAKE_INSTALL) .\$(OBJDIR)\$(LIBRARY_NAME).dll $(DIST)\bin\components
+	$(MAKE_INSTALL) .\$(OBJDIR)\$(LIBRARY_NAME).lib $(DIST)\lib
+
+clobber::
+	rm -f $(DIST)\bin\components\$(LIBRARY_NAME).dll
+	rm -f $(DIST)\lib\$(LIBRARY_NAME).lib

mozilla/modules/libpr0n/src/win32.order

@@ -0,0 +1,90 @@
+?AddRef@imgRequestProxy@@UAGKXZ ; 143798
+?Release@imgContainer@@UAGKXZ ; 120291
+?OnDataAvailable@imgRequestProxy@@UAGIPAVimgIRequest@@PAVnsISupports@@PAVgfxIImageFrame@@PBUnsRect@@@Z ; 84442
+?QueryInterface@imgContainer@@UAGIABUnsID@@PAPAX@Z ; 76980
+?OnDataAvailable@imgContainer@@UAGIPAVimgIRequest@@PAVnsISupports@@PAVgfxIImageFrame@@PBUnsRect@@@Z ; 75604
+?OnDataAvailable@imgRequest@@UAGIPAVimgIRequest@@PAVnsISupports@@PAVgfxIImageFrame@@PBUnsRect@@@Z ; 75604
+?AddRef@DummyChannel@@UAGKXZ ; 45629
+?QueryInterface@DummyChannel@@UAGIABUnsID@@PAPAX@Z ; 45310
+?GetImage@imgRequest@@UAGIPAPAVimgIContainer@@@Z ; 41814
+?Release@DummyChannel@@UAGKXZ ; 41716
+?GetImage@imgRequestProxy@@UAGIPAPAVimgIContainer@@@Z ; 40453
+?GetFrameAt@imgContainer@@UAGIIPAPAVgfxIImageFrame@@@Z ; 39613
+?GetHeight@imgContainer@@UAGIPAH@Z ; 32348
+?Release@imgRequest@@UAGKXZ ; 31603
+?AddRef@imgRequest@@UAGKXZ ; 31603
+?GetNumFrames@imgContainer@@UAGIPAI@Z ; 28342
+?GetImageStatus@imgRequestProxy@@UAGIPAI@Z ; 27464
+?Release@imgRequestProxy@@UAGKXZ ; 23383
+?GetCurrentFrame@imgContainer@@UAGIPAPAVgfxIImageFrame@@@Z ; 19319
+?QueryInterface@imgRequest@@UAGIABUnsID@@PAPAX@Z ; 16120
+?assign_assuming_AddRef@nsCOMPtr_base@@IAEXPAVnsISupports@@@Z ; 13764
+?FrameChanged@imgRequestProxy@@UAGIPAVimgIContainer@@PAVnsISupports@@PAVgfxIImageFrame@@PAUnsRect@@@Z ; 13455
+?QueryInterface@imgRequestProxy@@UAGIABUnsID@@PAPAX@Z ; 10170
+?Notify@imgContainer@@UAGXPAVnsITimer@@@Z ; 9611
+??0nsQueryReferent@@QAE@PAVnsIWeakReference@@PAI@Z ; 9611
+?FrameChanged@imgRequest@@UAGIPAVimgIContainer@@PAVnsISupports@@PAVgfxIImageFrame@@PAUnsRect@@@Z ; 9609
+?DoComposite@imgContainer@@AAEXPAPAVgfxIImageFrame@@PAUnsRect@@HH@Z ; 9608
+?GetLoadAttributes@DummyChannel@@UAGIPAI@Z ; 8258
+?Cancel@imgRequestProxy@@UAGII@Z ; 7509
+?GetLoadGroup@DummyChannel@@UAGIPAPAVnsILoadGroup@@@Z ; 7456
+?GetURI@imgRequest@@UAGIPAPAVnsIURI@@@Z ; 5395
+?GetURI@imgRequestProxy@@UAGIPAPAVnsIURI@@@Z ; 5395
+?GetCacheSession@@YAXPAPAVnsICacheSession@@@Z ; 5165
+?GetWidth@imgContainer@@UAGIPAH@Z ; 4675
+?Release@imgLoader@@UAGKXZ ; 3791
+?AddObserver@imgRequest@@QAEIPAVimgIDecoderObserver@@@Z ; 3789
+?Get@ImageCache@@SAHPAVnsIURI@@PAPAVimgRequest@@PAPAVnsICacheEntryDescriptor@@@Z ; 3789
+?RemoveObserver@imgRequest@@QAEIPAVimgIDecoderObserver@@I@Z ; 3789
+?Init@imgRequestProxy@@QAEIPAVimgRequest@@PAVnsILoadGroup@@PAVimgIDecoderObserver@@PAVnsISupports@@@Z ; 3789
+?QueryInterface@imgLoader@@UAGIABUnsID@@PAPAX@Z ; 3789
+??0imgRequestProxy@@QAE@XZ ; 3789
+??0DummyChannel@@QAE@PAVimgIRequest@@PAVnsILoadGroup@@@Z ; 3789
+?LoadImage@imgLoader@@UAGIPAVnsIURI@@PAVnsILoadGroup@@PAVimgIDecoderObserver@@PAVnsISupports@@PAPAVimgIRequest@@@Z ; 3789
+??1imgRequestProxy@@UAE@XZ ; 3667
+??1DummyChannel@@QAE@XZ ; 3667
+??_EimgRequestProxy@@UAEPAXI@Z ; 3667
+?OnStopRequest@imgRequestProxy@@UAGIPAVnsIRequest@@PAVnsISupports@@IPBG@Z ; 3667
+?OnStopDecode@imgRequestProxy@@UAGIPAVimgIRequest@@PAVnsISupports@@IPBG@Z ; 3652
+?OnStartContainer@imgRequestProxy@@UAGIPAVimgIRequest@@PAVnsISupports@@PAVimgIContainer@@@Z ; 3652
+?OnStopContainer@imgRequestProxy@@UAGIPAVimgIRequest@@PAVnsISupports@@PAVimgIContainer@@@Z ; 3652
+?OnStartDecode@imgRequestProxy@@UAGIPAVimgIRequest@@PAVnsISupports@@@Z ; 3652
+?OnStopFrame@imgRequestProxy@@UAGIPAVimgIRequest@@PAVnsISupports@@PAVgfxIImageFrame@@@Z ; 3491
+?OnStartFrame@imgRequestProxy@@UAGIPAVimgIRequest@@PAVnsISupports@@PAVgfxIImageFrame@@@Z ; 3491
+?OnStartRequest@imgRequestProxy@@UAGIPAVnsIRequest@@PAVnsISupports@@@Z ; 2714
+?OnStopFrame@imgRequest@@UAGIPAVimgIRequest@@PAVnsISupports@@PAVgfxIImageFrame@@@Z ; 2082
+?AppendFrame@imgContainer@@UAGIPAVgfxIImageFrame@@@Z ; 2082
+?OnStartFrame@imgRequest@@UAGIPAVimgIRequest@@PAVnsISupports@@PAVgfxIImageFrame@@@Z ; 2082
+?EndFrameDecode@imgContainer@@UAGIII@Z ; 1996
+?StartAnimation@imgContainer@@UAGIXZ ; 1747
+?OnDataAvailable@imgRequest@@UAGIPAVnsIRequest@@PAVnsISupports@@PAVnsIInputStream@@II@Z ; 1415
+??0imgContainer@@QAE@XZ ; 1376
+??1imgRequest@@UAE@XZ ; 1376
+?OnStopRequest@imgRequest@@UAGIPAVnsIRequest@@PAVnsISupports@@IPBG@Z ; 1376
+?Init@imgRequest@@QAEIPAVnsIChannel@@PAVnsICacheEntryDescriptor@@@Z ; 1376
+??1imgContainer@@UAE@XZ ; 1376
+?Put@ImageCache@@SAHPAVnsIURI@@PAVimgRequest@@PAPAVnsICacheEntryDescriptor@@@Z ; 1376
+??_GimgRequest@@UAEPAXI@Z ; 1376
+??_EimgContainer@@UAEPAXI@Z ; 1376
+??0imgRequest@@QAE@XZ ; 1376
+?OnStartRequest@imgRequest@@UAGIPAVnsIRequest@@PAVnsISupports@@@Z ; 1367
+?OnStartContainer@imgRequest@@UAGIPAVimgIRequest@@PAVnsISupports@@PAVimgIContainer@@@Z ; 1361
+?Init@imgContainer@@UAGIHHPAVimgIContainerObserver@@@Z ; 1361
+?OnStartDecode@imgRequest@@UAGIPAVimgIRequest@@PAVnsISupports@@@Z ; 1361
+?SniffMimeType@imgRequest@@QAEXPBDI@Z ; 1361
+?OnStopContainer@imgRequest@@UAGIPAVimgIRequest@@PAVnsISupports@@PAVimgIContainer@@@Z ; 1361
+?OnStopDecode@imgRequest@@UAGIPAVimgIRequest@@PAVnsISupports@@IPBG@Z ; 1361
+?GetContentType@DummyChannel@@UAGIPAPAD@Z ; 1275
+?DecodingComplete@imgContainer@@UAGIXZ ; 1275
+?Cancel@DummyChannel@@UAGII@Z ; 122
+?StopAnimation@imgContainer@@UAGIXZ ; 121
+?GetDecoderObserver@imgRequestProxy@@UAGIPAPAVimgIDecoderObserver@@@Z ; 84
+??0nsGetInterface@@QAE@PAVnsISupports@@PAI@Z ; 77
+_NSGetModule ; 1
+??_EimgLoader@@UAEPAXI@Z ; 1
+??1imgLoader@@UAE@XZ ; 1
+?Shutdown@ImageCache@@SAXXZ ; 1
+??0imgLoader@@QAE@XZ ; 1
+?do_GetService@@YA?BVnsGetServiceByContractID@@PBDPAI@Z ; 1
+?Cancel@imgRequest@@UAGII@Z ; 1
+?RemoveFromCache@imgRequest@@QAEHXZ ; 1

mozilla/tools/tinderbox-configs/firefox/linux/CLOBBER

@@ -1 +0,0 @@
-Clobbering so we pick up the new compiler; forgot to add that to the mozconfig.

mozilla/tools/tinderbox-configs/firefox/linux/mozconfig

@@ -1,22 +0,0 @@
-#
-## hostname: fxdbugnref-linux-tbox.build.mozilla.org
-## uname: Linux fxdbugnref-linux-tbox.build.mozilla.org 2.6.18-8.el5 #1 SMP Thu Mar 15 19:57:35 EDT 2007 i686 athlon i386 GNU/Linux
-#
-
-mk_add_options MOZ_CO_PROJECT=browser
-mk_add_options MOZ_CO_MODULE="mozilla/tools/trace-malloc"
-
-ac_add_options --enable-application=browser
-
-ac_add_options --disable-optimize
-ac_add_options --enable-debug
-
-ac_add_options --enable-canvas
-ac_add_options --enable-svg
-ac_add_options --enable-pango
-
-ac_add_options --enable-trace-malloc
-ac_add_options --disable-libxul
-
-CC=/tools/gcc-4.1.1/bin/gcc
-CXX=/tools/gcc-4.1.1/bin/g++

mozilla/tools/tinderbox-configs/firefox/linux/tinder-config.pl

@@ -1,185 +0,0 @@
-#
-## hostname: fxdbugnref-linux-tbox.build.mozilla.org
-## uname: Linux fxdbugnref-linux-tbox.build.mozilla.org 2.6.18-8.el5 #1 SMP Thu Mar 15 19:57:35 EDT 2007 i686 athlon i386 GNU/Linux
-#
-#- tinder-config.pl - Tinderbox configuration file.
-#-    Uncomment the variables you need to set.
-#-    The default values are the same as the commented variables.
-
-#$ENV{PATH} = "/usr/local/binutils-2.13.2.1/bin:/usr/local/gcc-3.4.3/bin:" . $ENV{PATH};
-
-#- PLEASE FILL THIS IN WITH YOUR PROPER EMAIL ADDRESS
-#$BuildAdministrator = "$ENV{USER}\@$ENV{HOST}";
-#$BuildAdministrator = ($ENV{USER} || "cltbld") . "\@" . ($ENV{HOST} || "dhcp");
-$BuildAdministrator = 'build@mozilla.org';
-
-#- You'll need to change these to suit your machine's needs
-$DisplayServer = ':0.0';
-
-#- Default values of command-line opts
-#-
-#$BuildDepend       = 1;      # Depend or Clobber
-#$BuildDebug        = 0;      # Debug or Opt (Darwin)
-#$ReportStatus      = 1;      # Send results to server, or not
-#$ReportFinalStatus = 1;      # Finer control over $ReportStatus.
-#$UseTimeStamp      = 1;      # Use the CVS 'pull-by-timestamp' option, or not
-#$BuildOnce         = 0;      # Build once, don't send results to server
-#$TestOnly          = 0;      # Only run tests, don't pull/build
-#$BuildEmbed        = 0;      # After building seamonkey, go build embed app.
-#$SkipMozilla       = 0;      # Use to debug post-mozilla.pl scripts.
-
-# Tests
-$CleanProfile             = 1;
-#$ResetHomeDirForTests     = 1;
-$ProductName               = "Firefox";
-$VendorName                = "Mozilla";
-$ENV{NO_EM_RESTART}        = '1';
-
-#$RunMozillaTests          = 1;  # Allow turning off of all tests if needed.
-#$RegxpcomTest             = 1;
-#$AliveTest                = 1;
-#$JavaTest                 = 0;
-#$ViewerTest               = 0;
-$BloatTest                = 1;  # warren memory bloat test
-$BloatTest2               = 1;  # dbaron memory bloat test, require tracemalloc
-#$DomToTextConversionTest  = 0;  
-#$XpcomGlueTest            = 0;
-#$CodesizeTest             = 0;  # Z,  require mozilla/tools/codesighs
-#$EmbedCodesizeTest        = 0;  # mZ, require mozilla/tools/codesigns
-#$MailBloatTest            = 0;
-#$EmbedTest                = 0;  # Assumes you wanted $BuildEmbed=1
-#$LayoutPerformanceTest    = 0;  # Tp
-#$QATest                   = 0;  
-#$XULWindowOpenTest        = 0;  # Txul
-#$StartupPerformanceTest   = 0;  # Ts
-
-$TestsPhoneHome           = 1;  # Should test report back to server?
-#$results_server           = "axolotl.mozilla.org"; # was tegu
-#$pageload_server          = "spider";  # localhost
-
-#
-# Timeouts, values are in seconds.
-#
-
-#$CreateProfileTimeout             = 45;
-$RegxpcomTestTimeout              = 60;
-
-#$AliveTestTimeout                 = 45;
-#$ViewerTestTimeout                = 45;
-#$EmbedTestTimeout                 = 45;
-$BloatTestTimeout                 = 1800;   # seconds
-#$MailBloatTestTimeout             = 120;   # seconds
-#$JavaTestTimeout                  = 45;
-#$DomTestTimeout	                  = 45;    # seconds
-#$XpcomGlueTestTimeout             = 15;
-#$CodesizeTestTimeout              = 900;     # seconds
-#$CodesizeTestType                 = "auto";  # {"auto"|"base"}
-#$LayoutPerformanceTestTimeout     = 1200;  # entire test, seconds
-#$QATestTimeout                    = 1200;   # entire test, seconds
-#$LayoutPerformanceTestPageTimeout = 30000; # each page, ms
-#$StartupPerformanceTestTimeout    = 60;    # seconds
-#$XULWindowOpenTestTimeout	      = 150;   # seconds
-
-
-#$MozConfigFileName = 'mozconfig';
-
-#$UseMozillaProfile = 1;
-#$MozProfileName = 'default';
-
-# This sets the value of the XPCOM_DEBUG_BREAK environment variable.  We
-# default to 'warn', which suppresses the assertion dialogs on Windows
-# and gives platform parity.  Use 'abort' for fatal assertions.
-$MozAssertBehavior = 'stack-and-abort';
-
-#- Set these to what makes sense for your system
-#$Make          = 'gmake';       # Must be GNU make
-#$MakeOverrides = '';
-#$mail          = '/bin/mail';
-#$CVS           = 'cvs -q';
-#$CVSCO         = 'checkout -P';
-
-# win32 usually doesn't have /bin/mail
-#$blat           = 'c:/nstools/bin/blat';
-#$use_blat       = 0;
-
-# Set moz_cvsroot to something like:
-# :pserver:$ENV{USER}%netscape.com\@cvs.mozilla.org:/cvsroot
-# :pserver:anonymous\@cvs-mirror.mozilla.org:/cvsroot
-#
-# Note that win32 may not need \@, depends on ' or ".
-# :pserver:$ENV{USER}%netscape.com@cvs.mozilla.org:/cvsroot
-
-$moz_cvsroot   = ':ext:cltbld@cvs.mozilla.org:/cvsroot';
-#$moz_cvsroot   = ":pserver:anonymous\@cvs-mirror.mozilla.org:/cvsroot";
-
-#- Set these proper values for your tinderbox server
-#$Tinderbox_server = 'tinderbox-daemon@tinderbox.mozilla.org';
-
-# Allow for non-client builds, e.g. camino.
-#$moz_client_mk = 'client.mk';
-
-#- Set if you want to build in a separate object tree
-$ObjDir = 'obj';
-
-# Extra build name, if needed.
-$BuildNameExtra = 'Debug-Newref';
-
-# User comment, eg. ip address for dhcp builds.
-# ex: $UserComment = "ip = 208.12.36.108";
-#$UserComment = 0;
-
-#-
-#- The rest should not need to be changed
-#-
-
-#- Minimum wait period from start of build to start of next build in minutes.
-#$BuildSleep = 10;
-
-#- Until you get the script working. When it works,
-#- change to the tree you're actually building
-#$BuildTree  = 'MozillaTest';
-$BuildTree  = 'MozillaExperimental';
-
-#$BuildName = '';
-#$BuildTag = '';
-#$BuildConfigDir = 'mozilla/config';
-#$Topsrcdir = 'mozilla';
-
-$BinaryName = 'firefox-bin';
-
-#
-# For embedding app, use:
-#$EmbedBinaryName = 'TestGtkEmbed';
-#$EmbedDistDir    = 'dist/bin'
-
-
-#$ShellOverride = ''; # Only used if the default shell is too stupid
-#$ConfigureArgs = '';
-#$ConfigureEnvArgs = '';
-#$Compiler = 'gcc';
-#$NSPRArgs = '';
-#$ShellOverride = '';
-
-# allow override of timezone value (for win32 POSIX::strftime)
-#$Timezone = '';
-
-# Reboot the OS at the end of build-and-test cycle. This is primarily
-# intended for Win9x, which can't last more than a few cycles before
-# locking up (and testing would be suspect even after a couple of cycles).
-# Right now, there is only code to force the reboot for Win9x, so even
-# setting this to 1, will not have an effect on other platforms. Setting
-# up win9x to automatically logon and begin running tinderbox is left 
-# as an exercise to the reader. 
-#$RebootSystem = 0;
-
-# LogCompression specifies the type of compression used on the log file.
-# Valid options are 'gzip', and 'bzip2'. Please make sure the binaries
-# for 'gzip' or 'bzip2' are in the user's path before setting this
-# option.
-$LogCompression = 'bzip2';
-
-# LogEncoding specifies the encoding format used for the logs. Valid
-# options are 'base64', and 'uuencode'. If $LogCompression is set above,
-# this needs to be set to 'base64' or 'uuencode' to ensure that the
-# binary data is transferred properly.
-$LogEncoding = 'uuencode';