114 lines
2.5 KiB
C++
114 lines
2.5 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http:/www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/*
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* nsGIFDecoder.cpp --- interface to gif decoder
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*/
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#include "nsGIFDecoder.h"
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/*--- needed for autoregistry ---*/
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#include "nsIComponentManager.h"
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#include "nsIServiceManager.h"
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#include "nsCOMPtr.h"
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#include "nsIGenericFactory.h"
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PR_BEGIN_EXTERN_C
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extern int MK_OUT_OF_MEMORY;
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PR_END_EXTERN_C
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static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
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static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID);
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static NS_DEFINE_CID(kGIFDecoderCID, NS_GIFDECODER_CID);
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static NS_DEFINE_IID(kIImgDecoderIID, NS_IIMGDECODER_IID);
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//////////////////////////////////////////////////////////////////////
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// GIF Decoder Implementation
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NS_IMPL_ISUPPORTS(GIFDecoder, kIImgDecoderIID)
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GIFDecoder::GIFDecoder(il_container* aContainer)
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{
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NS_INIT_REFCNT();
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ilContainer = aContainer;
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};
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GIFDecoder::~GIFDecoder(void)
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{
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NS_ASSERTION(mRefCnt == 0, "non-zero refcnt at destruction");
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};
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NS_IMETHODIMP
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GIFDecoder::ImgDInit()
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{
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int ret;
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if(ilContainer != NULL) {
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ret=il_gif_init(ilContainer);
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if(ret==1)
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return NS_OK;
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}
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return NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP
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GIFDecoder::ImgDWriteReady(PRUint32 *max_read)
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{
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if(ilContainer != NULL) {
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*max_read = il_gif_write_ready(ilContainer);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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GIFDecoder::ImgDWrite(const unsigned char *buf, int32 len)
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{
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int ret = 0;
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if( ilContainer != NULL ) {
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ret = il_gif_write(ilContainer, buf,len);
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if(ret != 0)
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return NS_ERROR_FAILURE;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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GIFDecoder::ImgDComplete()
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{
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if( ilContainer != NULL ) {
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il_gif_complete(ilContainer);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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GIFDecoder::ImgDAbort()
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{
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if( ilContainer != NULL ) {
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il_gif_abort(ilContainer);
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}
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return NS_OK;
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}
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