bf856b8053
fixes bugs in the previous implementation that caused unbalanced refcounts and premature releases. Thanks for rpotts for the heads up. r=pam nunn git-svn-id: svn://10.0.0.236/trunk@51195 18797224-902f-48f8-a5cc-f745e15eee43
108 lines
2.2 KiB
C++
108 lines
2.2 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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/* -*- Mode: C; tab-width: 4 -*-
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* nsPNGDecoder.cpp --- interface to png decoder
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*/
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#include "nsPNGDecoder.h"
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#include "pngdec.h"
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/*-----------class----------------*/
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/*-------------------------------------------------*/
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PNGDecoder::PNGDecoder(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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PNGDecoder::~PNGDecoder(void)
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{
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};
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NS_IMPL_ISUPPORTS(PNGDecoder, NS_GET_IID(nsIImgDecoder))
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/*----------------------------------------------------*/
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// api functions
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/*------------------------------------------------------*/
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NS_IMETHODIMP
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PNGDecoder::ImgDInit()
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{
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int ret;
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if( ilContainer != NULL ) {
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ret = il_png_init(ilContainer);
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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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PNGDecoder::ImgDWriteReady(PRUint32 *max_read)
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{
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/* dummy return needed */
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*max_read = 2048;
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return NS_OK;
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}
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NS_IMETHODIMP
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PNGDecoder::ImgDWrite(const unsigned char *buf, int32 len)
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{
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int ret;
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if( ilContainer != NULL ) {
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ret = il_png_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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PNGDecoder::ImgDComplete()
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{
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int ret;
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if( ilContainer != NULL ) {
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ret = il_png_complete(ilContainer);
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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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PNGDecoder::ImgDAbort()
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{
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int ret;
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if( ilContainer != NULL ) {
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ret = il_png_abort(ilContainer);
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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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