mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-07 12:15:51 +00:00
112 lines
2.3 KiB
C++
112 lines
2.3 KiB
C++
/* -*- 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.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):
|
|
*/
|
|
|
|
/* -*- Mode: C; tab-width: 4 -*-
|
|
* nsPNGDecoder.cpp --- interface to png decoder
|
|
*/
|
|
|
|
|
|
#include "nsPNGDecoder.h"
|
|
#include "pngdec.h"
|
|
|
|
/*-----------class----------------*/
|
|
/*-------------------------------------------------*/
|
|
|
|
PNGDecoder::PNGDecoder(il_container* aContainer)
|
|
{
|
|
NS_INIT_REFCNT();
|
|
ilContainer = aContainer;
|
|
};
|
|
|
|
|
|
PNGDecoder::~PNGDecoder(void)
|
|
{
|
|
};
|
|
|
|
NS_IMPL_ISUPPORTS(PNGDecoder, NS_GET_IID(nsIImgDecoder))
|
|
|
|
/*----------------------------------------------------*/
|
|
// api functions
|
|
/*------------------------------------------------------*/
|
|
NS_IMETHODIMP
|
|
PNGDecoder::ImgDInit()
|
|
{
|
|
int ret;
|
|
|
|
if( ilContainer != NULL ) {
|
|
ret = il_png_init(ilContainer);
|
|
if(!ret)
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
PNGDecoder::ImgDWriteReady(PRUint32 *max_read)
|
|
{
|
|
/* dummy return needed */
|
|
*max_read = 2048;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
PNGDecoder::ImgDWrite(const unsigned char *buf, int32 len)
|
|
{
|
|
int ret;
|
|
|
|
if( ilContainer != NULL ) {
|
|
ret = il_png_write(ilContainer, buf,len);
|
|
if(ret != 0)
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
PNGDecoder::ImgDComplete()
|
|
{
|
|
int ret;
|
|
|
|
if( ilContainer != NULL ) {
|
|
ret = il_png_complete(ilContainer);
|
|
if(ret != 0)
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
PNGDecoder::ImgDAbort()
|
|
{
|
|
int ret;
|
|
|
|
if( ilContainer != NULL ) {
|
|
ret = il_png_abort(ilContainer);
|
|
if(ret != 0)
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|