ut_jpeg.cpp File Reference

#include <stdio.h>
#include <jpeglib.h>
#include <string.h>
#include "ut_assert.h"
#include "ut_bytebuf.h"
#include "ut_debugmsg.h"
#include "ut_jpeg.h"

Classes
struct	bytebuf_jpeg_source_mgr
Typedefs
typedef bytebuf_jpeg_source_mgr *	bytebuf_jpeg_source_ptr
Functions
static void	_JPEG_ByteBufSrc (j_decompress_ptr cinfo, const UT_ByteBuf *sourceBuf)
static void	_jpegInitSource (j_decompress_ptr cinfo)
static boolean	_jpegFillInputBuffer (j_decompress_ptr cinfo)
static void	_jpegSkipInputData (j_decompress_ptr cinfo, long num_bytes)
static void	_jpegTermSource (j_decompress_ptr)
bool	UT_JPEG_getDimensions (const UT_ByteBuf *pBB, UT_sint32 &iImageWidth, UT_sint32 &iImageHeight)
bool	UT_JPEG_getRGBData (const UT_ByteBuf *pBB, UT_Byte *pDest, UT_sint32 iDestRowSize, bool bBGR, bool bFlipHoriz)

---

Typedef Documentation

typedef bytebuf_jpeg_source_mgr* bytebuf_jpeg_source_ptr

---

Function Documentation

static void _JPEG_ByteBufSrc	(	j_decompress_ptr	cinfo,
		const UT_ByteBuf *	sourceBuf
	)			[static]

References bytebuf_jpeg_source_mgr::pub, and bytebuf_jpeg_source_mgr::sourceBuf.

Referenced by UT_JPEG_getDimensions(), and UT_JPEG_getRGBData().

static boolean _jpegFillInputBuffer

(

j_decompress_ptr

cinfo

)

[static]

References UT_ByteBuf::getLength(), UT_ByteBuf::getPointer(), bytebuf_jpeg_source_mgr::pos, bytebuf_jpeg_source_mgr::pub, and bytebuf_jpeg_source_mgr::sourceBuf.

static void _jpegInitSource

(

j_decompress_ptr

cinfo

)

[static]

References bytebuf_jpeg_source_mgr::pos.

static void _jpegSkipInputData	(	j_decompress_ptr	cinfo,
		long	num_bytes
	)			[static]

References bytebuf_jpeg_source_mgr::pub, and UT_ASSERT.

static void _jpegTermSource

(

j_decompress_ptr

)

[static]

bool UT_JPEG_getDimensions	(	const UT_ByteBuf *	pBB,
		UT_sint32 &	iImageWidth,
		UT_sint32 &	iImageHeight
	)

References _JPEG_ByteBufSrc().

Referenced by GR_Win32Image::_convertFromJPEG(), s_RTF_ListenerWriteDoc::_openFrame(), s_RTF_ListenerWriteDoc::_writeImageInRTF(), abiword_document::garble_jpeg(), FG_GraphicRaster::generateImage(), and FG_GraphicRaster::setRaster_JPEG().

bool UT_JPEG_getRGBData	(	const UT_ByteBuf *	pBB,
		UT_Byte *	pDest,
		UT_sint32	iDestRowSize,
		bool	bBGR,
		bool	bFlipHoriz
	)

References _JPEG_ByteBufSrc(), FREEP, and UT_return_val_if_fail.

Referenced by GR_Win32Image::_convertFromJPEG().