gecko/image/encoders/bmp/nsBMPEncoder.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

92 lines
3.1 KiB
C++

/* 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 "BMPFileHeaders.h"
#include "nsCOMPtr.h"
#define NS_BMPENCODER_CID \
{ /* 13a5320c-4c91-4FA4-bd16-b081a3ba8c0b */ \
0x13a5320c, \
0x4c91, \
0x4fa4, \
{0xbd, 0x16, 0xb0, 0x81, 0xa3, 0Xba, 0x8c, 0x0b} \
}
// Provides BMP encoding functionality. Use InitFromData() to do the
// encoding. See that function definition for encoding options.
class nsBMPEncoder MOZ_FINAL : public imgIEncoder
{
typedef mozilla::ReentrantMonitor ReentrantMonitor;
public:
NS_DECL_ISUPPORTS
NS_DECL_IMGIENCODER
NS_DECL_NSIINPUTSTREAM
NS_DECL_NSIASYNCINPUTSTREAM
nsBMPEncoder();
~nsBMPEncoder();
protected:
enum Version {
VERSION_3 = 3,
VERSION_5 = 5
};
// See InitData in the cpp for valid parse options
nsresult ParseOptions(const nsAString& aOptions, Version* version,
uint32_t* bpp);
// Obtains data with no alpha in machine-independent byte order
void ConvertHostARGBRow(const uint8_t* aSrc, uint8_t* aDest,
uint32_t aPixelWidth);
// Thread safe notify listener
void NotifyListener();
// Initializes the bitmap file header member mBMPFileHeader
void InitFileHeader(Version aVersion, uint32_t aBPP, uint32_t aWidth,
uint32_t aHeight);
// Initializes the bitmap info header member mBMPInfoHeader
void InitInfoHeader(Version aVersion, uint32_t aBPP, uint32_t aWidth,
uint32_t aHeight);
// Encodes the bitmap file header member mBMPFileHeader
void EncodeFileHeader();
// Encodes the bitmap info header member mBMPInfoHeader
void EncodeInfoHeader();
// Encodes a row of image data which does not have alpha data
void EncodeImageDataRow24(const uint8_t* aData);
// Encodes a row of image data which does have alpha data
void EncodeImageDataRow32(const uint8_t* aData);
// Obtains the current offset filled up to for the image buffer
inline int32_t GetCurrentImageBufferOffset()
{
return static_cast<int32_t>(mImageBufferCurr - mImageBufferStart);
}
// These headers will always contain endian independent stuff
// They store the BMP headers which will be encoded
mozilla::image::BMPFILEHEADER mBMPFileHeader;
mozilla::image::BITMAPV5HEADER mBMPInfoHeader;
// Keeps track of the start of the image buffer
uint8_t* mImageBufferStart;
// Keeps track of the current position in the image buffer
uint8_t* mImageBufferCurr;
// Keeps track of the image buffer size
uint32_t mImageBufferSize;
// Keeps track of the number of bytes in the image buffer which are read
uint32_t mImageBufferReadPoint;
// Stores true if the image is done being encoded
bool mFinished;
nsCOMPtr<nsIInputStreamCallback> mCallback;
nsCOMPtr<nsIEventTarget> mCallbackTarget;
uint32_t mNotifyThreshold;
};