gecko/image/encoders/png/nsPNGEncoder.h
Ehsan Akhgari 8c296bbcd4 Bug 579517 - Part 1: Automated conversion of NSPR numeric types to stdint types in Gecko; r=bsmedberg
This patch was generated by a script.  Here's the source of the script for
future reference:

function convert() {
echo "Converting $1 to $2..."
find . ! -wholename "*nsprpub*" \
       ! -wholename "*security/nss*" \
       ! -wholename "*/.hg*" \
       ! -wholename "obj-ff-dbg*" \
       ! -name nsXPCOMCID.h \
       ! -name prtypes.h \
         -type f \
      \( -iname "*.cpp" \
         -o -iname "*.h" \
         -o -iname "*.c" \
         -o -iname "*.cc" \
         -o -iname "*.idl" \
         -o -iname "*.ipdl" \
         -o -iname "*.ipdlh" \
         -o -iname "*.mm" \) | \
    xargs -n 1 sed -i -e "s/\b$1\b/$2/g"
}

convert PRInt8 int8_t
convert PRUint8 uint8_t
convert PRInt16 int16_t
convert PRUint16 uint16_t
convert PRInt32 int32_t
convert PRUint32 uint32_t
convert PRInt64 int64_t
convert PRUint64 uint64_t

convert PRIntn int
convert PRUintn unsigned

convert PRSize size_t

convert PROffset32 int32_t
convert PROffset64 int64_t

convert PRPtrdiff ptrdiff_t

convert PRFloat64 double
2012-08-22 11:56:38 -04:00

83 lines
2.7 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/Attributes.h"
#include "mozilla/ReentrantMonitor.h"
#include "imgIEncoder.h"
#include "nsCOMPtr.h"
#include <png.h>
#define NS_PNGENCODER_CID \
{ /* 38d1592e-b81e-432b-86f8-471878bbfe07 */ \
0x38d1592e, \
0xb81e, \
0x432b, \
{0x86, 0xf8, 0x47, 0x18, 0x78, 0xbb, 0xfe, 0x07} \
}
// Provides PNG encoding functionality. Use InitFromData() to do the
// encoding. See that function definition for encoding options.
class nsPNGEncoder MOZ_FINAL : public imgIEncoder
{
typedef mozilla::ReentrantMonitor ReentrantMonitor;
public:
NS_DECL_ISUPPORTS
NS_DECL_IMGIENCODER
NS_DECL_NSIINPUTSTREAM
NS_DECL_NSIASYNCINPUTSTREAM
nsPNGEncoder();
~nsPNGEncoder();
protected:
nsresult ParseOptions(const nsAString& aOptions,
bool* useTransparency,
bool* skipFirstFrame,
uint32_t* numAnimatedFrames,
uint32_t* numIterations,
uint32_t* frameDispose,
uint32_t* frameBlend,
uint32_t* frameDelay,
uint32_t* offsetX,
uint32_t* offsetY);
void ConvertHostARGBRow(const uint8_t* aSrc, uint8_t* aDest,
uint32_t aPixelWidth, bool aUseTransparency);
void StripAlpha(const uint8_t* aSrc, uint8_t* aDest,
uint32_t aPixelWidth);
static void WarningCallback(png_structp png_ptr, png_const_charp warning_msg);
static void ErrorCallback(png_structp png_ptr, png_const_charp error_msg);
static void WriteCallback(png_structp png, png_bytep data, png_size_t size);
void NotifyListener();
png_struct* mPNG;
png_info* mPNGinfo;
bool mIsAnimation;
bool mFinished;
// image buffer
uint8_t* mImageBuffer;
uint32_t mImageBufferSize;
uint32_t mImageBufferUsed;
uint32_t mImageBufferReadPoint;
nsCOMPtr<nsIInputStreamCallback> mCallback;
nsCOMPtr<nsIEventTarget> mCallbackTarget;
uint32_t mNotifyThreshold;
/*
nsPNGEncoder is designed to allow one thread to pump data into it while another
reads from it. We lock to ensure that the buffer remains append-only while
we read from it (that it is not realloced) and to ensure that only one thread
dispatches a callback for each call to AsyncWait.
*/
ReentrantMonitor mReentrantMonitor;
};