gecko-dev/image/encoders/ico/nsICOEncoder.h
Ehsan Akhgari e368dc9c85 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

98 lines
3.2 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 "nsAutoPtr.h"
#include "nsCOMPtr.h"
#include "ICOFileHeaders.h"
class nsBMPEncoder;
class nsPNGEncoder;
#define NS_ICOENCODER_CID \
{ /*92AE3AB2-8968-41B1-8709-B6123BCEAF21 */ \
0x92ae3ab2, \
0x8968, \
0x41b1, \
{0x87, 0x09, 0xb6, 0x12, 0x3b, 0Xce, 0xaf, 0x21} \
}
// Provides ICO encoding functionality. Use InitFromData() to do the
// encoding. See that function definition for encoding options.
class nsICOEncoder MOZ_FINAL : public imgIEncoder
{
typedef mozilla::ReentrantMonitor ReentrantMonitor;
public:
NS_DECL_ISUPPORTS
NS_DECL_IMGIENCODER
NS_DECL_NSIINPUTSTREAM
NS_DECL_NSIASYNCINPUTSTREAM
nsICOEncoder();
~nsICOEncoder();
// Obtains the width of the icon directory entry
uint32_t GetRealWidth() const
{
return mICODirEntry.mWidth == 0 ? 256 : mICODirEntry.mWidth;
}
// Obtains the height of the icon directory entry
uint32_t GetRealHeight() const
{
return mICODirEntry.mHeight == 0 ? 256 : mICODirEntry.mHeight;
}
protected:
nsresult ParseOptions(const nsAString& aOptions, uint32_t* bpp,
bool *usePNG);
void NotifyListener();
// Initializes the icon file header mICOFileHeader
void InitFileHeader();
// Initializes the icon directory info header mICODirEntry
void InitInfoHeader(uint32_t aBPP, uint8_t aWidth, uint8_t aHeight);
// Encodes the icon file header mICOFileHeader
void EncodeFileHeader();
// Encodes the icon directory info header mICODirEntry
void EncodeInfoHeader();
// Obtains the current offset filled up to for the image buffer
inline int32_t GetCurrentImageBufferOffset()
{
return static_cast<int32_t>(mImageBufferCurr - mImageBufferStart);
}
// Holds either a PNG or a BMP depending on the encoding options specified
// or if no encoding options specified will use the default (PNG)
nsCOMPtr<imgIEncoder> mContainedEncoder;
// These headers will always contain endian independent stuff.
// Don't trust the width and height of mICODirEntry directly,
// instead use the accessors GetRealWidth() and GetRealHeight().
mozilla::image::IconFileHeader mICOFileHeader;
mozilla::image::IconDirEntry mICODirEntry;
// 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;
// Stores true if the contained image is a PNG
bool mUsePNG;
nsCOMPtr<nsIInputStreamCallback> mCallback;
nsCOMPtr<nsIEventTarget> mCallbackTarget;
uint32_t mNotifyThreshold;
};