diff options
Diffstat (limited to 'core/src/fxcodec/codec/fx_codec_tiff.cpp')
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_tiff.cpp | 532 |
1 files changed, 532 insertions, 0 deletions
diff --git a/core/src/fxcodec/codec/fx_codec_tiff.cpp b/core/src/fxcodec/codec/fx_codec_tiff.cpp new file mode 100644 index 0000000000..c90de7a74f --- /dev/null +++ b/core/src/fxcodec/codec/fx_codec_tiff.cpp @@ -0,0 +1,532 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "../../../include/fxcodec/fx_codec.h"
+#include "../../../include/fxge/fx_dib.h"
+#include "codec_int.h"
+extern "C" {
+#include "../fx_tiff/include/fx_tiffiop.h"
+}
+#if !defined(_FPDFAPI_MINI_)
+void* IccLib_CreateTransform_sRGB(const unsigned char* pProfileData, unsigned int dwProfileSize, int nComponents, int intent, FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT);
+void IccLib_TranslateImage(void* pTransform, unsigned char* pDest, const unsigned char* pSrc, int pixels);
+void IccLib_DestroyTransform(void* pTransform);
+#endif
+class CCodec_TiffContext : public CFX_Object
+{
+public:
+ CCodec_TiffContext();
+ ~CCodec_TiffContext();
+
+ FX_BOOL InitDecoder(IFX_FileRead* file_ptr);
+ void GetFrames(FX_INT32& frames);
+ FX_BOOL LoadFrameInfo(FX_INT32 frame, FX_DWORD& width, FX_DWORD& height, FX_DWORD& comps, FX_DWORD& bpc, CFX_DIBAttribute* pAttribute);
+ FX_BOOL Decode(CFX_DIBitmap* pDIBitmap);
+
+ union {
+ IFX_FileRead* in;
+ IFX_FileStream* out;
+ } io;
+
+ FX_DWORD offset;
+
+ TIFF* tif_ctx;
+ void* icc_ctx;
+ FX_INT32 frame_num;
+ FX_INT32 frame_cur;
+ FX_BOOL isDecoder;
+private:
+ FX_BOOL isSupport(CFX_DIBitmap* pDIBitmap);
+ void SetPalette(CFX_DIBitmap* pDIBitmap, FX_UINT16 bps);
+ FX_BOOL Decode1bppRGB(CFX_DIBitmap* pDIBitmap, FX_INT32 height, FX_INT32 width, FX_UINT16 bps, FX_UINT16 spp);
+ FX_BOOL Decode8bppRGB(CFX_DIBitmap* pDIBitmap, FX_INT32 height, FX_INT32 width, FX_UINT16 bps, FX_UINT16 spp);
+ FX_BOOL Decode24bppRGB(CFX_DIBitmap* pDIBitmap, FX_INT32 height, FX_INT32 width, FX_UINT16 bps, FX_UINT16 spp);
+};
+CCodec_TiffContext::CCodec_TiffContext()
+{
+ offset = 0;
+ frame_num = 0;
+ frame_cur = 0;
+ io.in = NULL;
+ tif_ctx = NULL;
+ icc_ctx = NULL;
+ isDecoder = TRUE;
+}
+CCodec_TiffContext::~CCodec_TiffContext()
+{
+#if !defined(_FPDFAPI_MINI_)
+ if(icc_ctx) {
+ IccLib_DestroyTransform(icc_ctx);
+ icc_ctx = NULL;
+ }
+#endif
+ if(tif_ctx) {
+ TIFFClose(tif_ctx);
+ }
+}
+static tsize_t _tiff_read(thandle_t context, tdata_t buf, tsize_t length)
+{
+ CCodec_TiffContext* pTiffContext = (CCodec_TiffContext*)context;
+ FX_BOOL ret = FALSE;
+ if(pTiffContext->isDecoder) {
+ ret = pTiffContext->io.in->ReadBlock(buf, pTiffContext->offset, length);
+ } else {
+ ret = pTiffContext->io.out->ReadBlock(buf, pTiffContext->offset, length);
+ }
+ if(!ret) {
+ return 0;
+ }
+ pTiffContext->offset += (FX_DWORD)length;
+ return length;
+}
+static tsize_t _tiff_write(thandle_t context, tdata_t buf, tsize_t length)
+{
+ CCodec_TiffContext* pTiffContext = (CCodec_TiffContext*)context;
+ ASSERT(!pTiffContext->isDecoder);
+ if(!pTiffContext->io.out->WriteBlock(buf, pTiffContext->offset, length)) {
+ return 0;
+ }
+ pTiffContext->offset += (FX_DWORD)length;
+ return length;
+}
+static toff_t _tiff_seek(thandle_t context, toff_t offset, int whence)
+{
+ CCodec_TiffContext* pTiffContext = (CCodec_TiffContext*)context;
+ switch(whence) {
+ case 0:
+ pTiffContext->offset = (FX_DWORD)offset;
+ break;
+ case 1:
+ pTiffContext->offset += (FX_DWORD)offset;
+ break;
+ case 2:
+ if(pTiffContext->isDecoder) {
+ if(pTiffContext->io.in->GetSize() < (FX_FILESIZE)offset) {
+ return -1;
+ }
+ pTiffContext->offset = (FX_DWORD)(pTiffContext->io.in->GetSize() - offset);
+ } else {
+ if(pTiffContext->io.out->GetSize() < (FX_FILESIZE)offset) {
+ return -1;
+ }
+ pTiffContext->offset = (FX_DWORD)(pTiffContext->io.out->GetSize() - offset);
+ }
+ break;
+ default:
+ return -1;
+ }
+ ASSERT(pTiffContext->isDecoder ?
+ (pTiffContext->offset <= (FX_DWORD)pTiffContext->io.in->GetSize()) :
+ TRUE);
+ return pTiffContext->offset;
+}
+static int _tiff_close(thandle_t context)
+{
+ return 0;
+}
+static toff_t _tiff_get_size(thandle_t context)
+{
+ CCodec_TiffContext* pTiffContext = (CCodec_TiffContext*)context;
+ return pTiffContext->isDecoder ?
+ (toff_t)pTiffContext->io.in->GetSize() :
+ (toff_t)pTiffContext->io.out->GetSize();
+}
+static int _tiff_map(thandle_t context, tdata_t*, toff_t*)
+{
+ return 0;
+}
+static void _tiff_unmap(thandle_t context, tdata_t, toff_t) {}
+TIFF* _tiff_open(void* context, const char* mode)
+{
+ TIFF* tif = TIFFClientOpen("Tiff Image", mode,
+ (thandle_t)context,
+ _tiff_read, _tiff_write, _tiff_seek, _tiff_close,
+ _tiff_get_size, _tiff_map, _tiff_unmap);
+ if(tif) {
+ tif->tif_fd = (int)(FX_INTPTR)context;
+ }
+ return tif;
+}
+void* _TIFFmalloc(tmsize_t size)
+{
+ return FXMEM_DefaultAlloc(size, 0);
+}
+void _TIFFfree(void* ptr)
+{
+ FXMEM_DefaultFree(ptr, 0);
+}
+void* _TIFFrealloc(void* ptr, tmsize_t size)
+{
+ return FXMEM_DefaultRealloc(ptr, size, 0);
+}
+void _TIFFmemset(void* ptr, int val, tmsize_t size)
+{
+ FXSYS_memset8(ptr, val, (size_t)size);
+}
+void _TIFFmemcpy(void* des, const void* src, tmsize_t size)
+{
+ FXSYS_memcpy32(des, src, (size_t)size);
+}
+int _TIFFmemcmp(const void* ptr1, const void* ptr2, tmsize_t size)
+{
+ return FXSYS_memcmp32(ptr1, ptr2, (size_t)size);
+}
+static void _tiff_warning_ext(thandle_t context, const char* module, const char* fmt, va_list ap)
+{
+ if(module != NULL) {
+ }
+}
+TIFFErrorHandlerExt _TIFFwarningHandlerExt = _tiff_warning_ext;
+static void _tiff_error_ext(thandle_t context, const char* module, const char* fmt, va_list ap)
+{
+ if(module != NULL) {
+ }
+}
+TIFFErrorHandlerExt _TIFFerrorHandlerExt = _tiff_error_ext;
+int TIFFCmyk2Rgb(thandle_t context, uint8 c, uint8 m, uint8 y, uint8 k, uint8* r, uint8* g, uint8* b)
+{
+ if(context == NULL) {
+ return 0;
+ }
+ CCodec_TiffContext* p = (CCodec_TiffContext*)context;
+#if !defined(_FPDFAPI_MINI_)
+ if(p->icc_ctx) {
+ unsigned char cmyk[4], bgr[3];
+ cmyk[0] = c, cmyk[1] = m, cmyk[2] = y, cmyk[3] = k;
+ IccLib_TranslateImage(p->icc_ctx, bgr, cmyk, 1);
+ *r = bgr[2], *g = bgr[1], *b = bgr[0];
+ } else {
+#endif
+ AdobeCMYK_to_sRGB1(c, m, y, k, *r, *g, *b);
+#if !defined(_FPDFAPI_MINI_)
+ }
+#endif
+ return 1;
+}
+FX_BOOL CCodec_TiffContext::InitDecoder(IFX_FileRead* file_ptr)
+{
+ io.in = file_ptr;
+ tif_ctx = _tiff_open(this, "r");
+ if(tif_ctx == NULL) {
+ return FALSE;
+ }
+ return TRUE;
+}
+void CCodec_TiffContext::GetFrames(FX_INT32& frames)
+{
+ frames = frame_num = TIFFNumberOfDirectories(tif_ctx);
+}
+#define TIFF_EXIF_GETINFO(key, T, tag) {\
+ T val = (T)0;\
+ TIFFGetField(tif_ctx,tag,&val);\
+ if (val) {\
+ (key) = FX_Alloc(FX_BYTE,sizeof(T));\
+ if ((key)) {\
+ T* ptr = (T*)(key);\
+ *ptr = val;\
+ pExif->m_TagVal.SetAt(tag,(key));}}}\
+ (key) = NULL;
+#define TIFF_EXIF_GETSTRINGINFO(key, tag) {\
+ FX_DWORD size = 0;\
+ FX_LPBYTE buf = NULL;\
+ TIFFGetField(tif_ctx,tag,&size, &buf);\
+ if (size && buf) {\
+ (key) = FX_Alloc(FX_BYTE,size);\
+ if ((key)) {\
+ FXSYS_memcpy32((key),buf,size);\
+ pExif->m_TagVal.SetAt(tag,(key));}}}\
+ (key) = NULL;
+template <class T>
+static FX_BOOL Tiff_Exif_GetInfo(TIFF* tif_ctx, ttag_t tag, CFX_DIBAttributeExif* pExif)
+{
+ FX_LPBYTE key = NULL;
+ T val = (T)0;
+ TIFFGetField(tif_ctx, tag, &val);
+ if (val) {
+ (key) = FX_Alloc(FX_BYTE, sizeof(T));
+ if ((key) == NULL) {
+ return FALSE;
+ }
+ T* ptr = (T*)(key);
+ *ptr = val;
+ pExif->m_TagVal.SetAt(tag, (key));
+ return TRUE;
+ }
+ return FALSE;
+}
+static void Tiff_Exif_GetStringInfo(TIFF* tif_ctx, ttag_t tag, CFX_DIBAttributeExif* pExif)
+{
+ FX_LPSTR buf = NULL;
+ FX_LPBYTE key = NULL;
+ TIFFGetField(tif_ctx, tag, &buf);
+ if (buf) {
+ FX_INT32 size = (FX_INT32)FXSYS_strlen(buf);
+ (key) = FX_Alloc(FX_BYTE, size + 1);
+ if ((key) == NULL) {
+ return;
+ }
+ FXSYS_memcpy32((key), buf, size);
+ key[size] = 0;
+ pExif->m_TagVal.SetAt(tag, (key));
+ }
+}
+FX_BOOL CCodec_TiffContext::LoadFrameInfo(FX_INT32 frame, FX_DWORD& width, FX_DWORD& height, FX_DWORD& comps, FX_DWORD& bpc, CFX_DIBAttribute* pAttribute)
+{
+ if (!TIFFSetDirectory(tif_ctx, (uint16)frame)) {
+ return FALSE;
+ }
+ FX_WORD tif_cs;
+ FX_DWORD tif_icc_size = 0;
+ FX_LPBYTE tif_icc_buf = NULL;
+ FX_WORD tif_bpc = 0;
+ FX_WORD tif_cps;
+ FX_DWORD tif_rps;
+ width = height = comps = 0;
+ TIFFGetField(tif_ctx, TIFFTAG_IMAGEWIDTH, &width);
+ TIFFGetField(tif_ctx, TIFFTAG_IMAGELENGTH, &height);
+ TIFFGetField(tif_ctx, TIFFTAG_SAMPLESPERPIXEL, &comps);
+ TIFFGetField(tif_ctx, TIFFTAG_BITSPERSAMPLE, &tif_bpc);
+ TIFFGetField(tif_ctx, TIFFTAG_PHOTOMETRIC, &tif_cs);
+ TIFFGetField(tif_ctx, TIFFTAG_COMPRESSION, &tif_cps);
+ TIFFGetField(tif_ctx, TIFFTAG_ROWSPERSTRIP, &tif_rps);
+ TIFFGetField(tif_ctx, TIFFTAG_ICCPROFILE, &tif_icc_size, &tif_icc_buf);
+ if (pAttribute) {
+ pAttribute->m_wDPIUnit = FXCODEC_RESUNIT_INCH;
+ if (TIFFGetField(tif_ctx, TIFFTAG_RESOLUTIONUNIT, &pAttribute->m_wDPIUnit)) {
+ pAttribute->m_wDPIUnit -= 1;
+ }
+ CFX_DIBAttributeExif* pExif = (CFX_DIBAttributeExif*)pAttribute->m_pExif;
+ pExif->clear();
+ Tiff_Exif_GetInfo<FX_WORD>(tif_ctx, TIFFTAG_ORIENTATION, pExif);
+ if (Tiff_Exif_GetInfo<FX_FLOAT>(tif_ctx, TIFFTAG_XRESOLUTION, pExif)) {
+ FX_FLOAT fDpi = 0;
+ pExif->GetInfo(TIFFTAG_XRESOLUTION, &fDpi);
+ pAttribute->m_nXDPI = (FX_INT32)(fDpi + 0.5f);
+ }
+ if (Tiff_Exif_GetInfo<FX_FLOAT>(tif_ctx, TIFFTAG_YRESOLUTION, pExif)) {
+ FX_FLOAT fDpi = 0;
+ pExif->GetInfo(TIFFTAG_YRESOLUTION, &fDpi);
+ pAttribute->m_nYDPI = (FX_INT32)(fDpi + 0.5f);
+ }
+ Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_IMAGEDESCRIPTION, pExif);
+ Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_MAKE, pExif);
+ Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_MODEL, pExif);
+ }
+ bpc = tif_bpc;
+ if(tif_rps > height) {
+ TIFFSetField(tif_ctx, TIFFTAG_ROWSPERSTRIP, tif_rps = height);
+ }
+ return TRUE;
+}
+void _TiffBGRA2RGBA(FX_LPBYTE pBuf, FX_INT32 pixel, FX_INT32 spp)
+{
+ register FX_BYTE tmp;
+ for (FX_INT32 n = 0; n < pixel; n++) {
+ tmp = pBuf[0];
+ pBuf[0] = pBuf[2];
+ pBuf[2] = tmp;
+ pBuf += spp;
+ }
+}
+FX_BOOL CCodec_TiffContext::isSupport(CFX_DIBitmap* pDIBitmap)
+{
+ if (TIFFIsTiled(tif_ctx)) {
+ return FALSE;
+ }
+ FX_UINT16 photometric;
+ if (!TIFFGetField(tif_ctx, TIFFTAG_PHOTOMETRIC, &photometric)) {
+ return FALSE;
+ }
+ switch (pDIBitmap->GetBPP()) {
+ case 1:
+ case 8:
+ if (photometric != PHOTOMETRIC_PALETTE) {
+ return FALSE;
+ }
+ break;
+ case 24:
+ if (photometric != PHOTOMETRIC_RGB) {
+ return FALSE;
+ }
+ break;
+ default:
+ return FALSE;
+ }
+ FX_UINT16 planarconfig;
+ if (!TIFFGetFieldDefaulted(tif_ctx, TIFFTAG_PLANARCONFIG, &planarconfig)) {
+ return FALSE;
+ }
+ if (planarconfig == PLANARCONFIG_SEPARATE) {
+ return FALSE;
+ }
+ return TRUE;
+}
+void CCodec_TiffContext::SetPalette(CFX_DIBitmap* pDIBitmap, FX_UINT16 bps)
+{
+ FX_UINT16 *red_orig, *green_orig, *blue_orig;
+ TIFFGetField(tif_ctx, TIFFTAG_COLORMAP, &red_orig, &green_orig, &blue_orig);
+ for (FX_INT32 i = (1L << bps) - 1; i >= 0; i--) {
+#define CVT(x) ((FX_UINT16)((x)>>8))
+ red_orig[i] = CVT(red_orig[i]);
+ green_orig[i] = CVT(green_orig[i]);
+ blue_orig[i] = CVT(blue_orig[i]);
+#undef CVT
+ }
+ FX_INT32 len = 1 << bps;
+ for(FX_INT32 index = 0; index < len; index++) {
+ FX_DWORD r = red_orig[index] & 0xFF;
+ FX_DWORD g = green_orig[index] & 0xFF;
+ FX_DWORD b = blue_orig[index] & 0xFF;
+ FX_DWORD color = (FX_UINT32)b | ((FX_UINT32)g << 8) | ((FX_UINT32)r << 16) | (((uint32)0xffL) << 24);
+ pDIBitmap->SetPaletteEntry(index, color);
+ }
+}
+FX_BOOL CCodec_TiffContext::Decode1bppRGB(CFX_DIBitmap* pDIBitmap, FX_INT32 height, FX_INT32 width, FX_UINT16 bps, FX_UINT16 spp)
+{
+ if (pDIBitmap->GetBPP() != 1 || spp != 1 || bps != 1 || !isSupport(pDIBitmap)) {
+ return FALSE;
+ }
+ SetPalette(pDIBitmap, bps);
+ FX_INT32 size = (FX_INT32)TIFFScanlineSize(tif_ctx);
+ FX_LPBYTE buf = (FX_LPBYTE)_TIFFmalloc(size);
+ if (buf == NULL) {
+ TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer");
+ return FALSE;
+ }
+ FX_LPBYTE bitMapbuffer = (FX_LPBYTE)pDIBitmap->GetBuffer();
+ FX_DWORD pitch = pDIBitmap->GetPitch();
+ for(FX_INT32 row = 0; row < height; row++) {
+ TIFFReadScanline(tif_ctx, buf, row, 0);
+ for(FX_INT32 j = 0; j < size; j++) {
+ bitMapbuffer[row * pitch + j] = buf[j];
+ }
+ }
+ _TIFFfree(buf);
+ return TRUE;
+}
+FX_BOOL CCodec_TiffContext::Decode8bppRGB(CFX_DIBitmap* pDIBitmap, FX_INT32 height, FX_INT32 width, FX_UINT16 bps, FX_UINT16 spp)
+{
+ if (pDIBitmap->GetBPP() != 8 || spp != 1 || (bps != 4 && bps != 8) || !isSupport(pDIBitmap)) {
+ return FALSE;
+ }
+ SetPalette(pDIBitmap, bps);
+ FX_INT32 size = (FX_INT32)TIFFScanlineSize(tif_ctx);
+ FX_LPBYTE buf = (FX_LPBYTE)_TIFFmalloc(size);
+ if (buf == NULL) {
+ TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer");
+ return FALSE;
+ }
+ FX_LPBYTE bitMapbuffer = (FX_LPBYTE)pDIBitmap->GetBuffer();
+ FX_DWORD pitch = pDIBitmap->GetPitch();
+ for(FX_INT32 row = 0; row < height; row++) {
+ TIFFReadScanline(tif_ctx, buf, row, 0);
+ for(FX_INT32 j = 0; j < size; j++) {
+ switch(bps) {
+ case 4:
+ bitMapbuffer[row * pitch + 2 * j + 0] = (buf[j] & 0xF0) >> 4;
+ bitMapbuffer[row * pitch + 2 * j + 1] = (buf[j] & 0x0F) >> 0;
+ break;
+ case 8:
+ bitMapbuffer[row * pitch + j] = buf[j];
+ break;
+ }
+ }
+ }
+ _TIFFfree(buf);
+ return TRUE;
+}
+FX_BOOL CCodec_TiffContext::Decode24bppRGB(CFX_DIBitmap* pDIBitmap, FX_INT32 height, FX_INT32 width, FX_UINT16 bps, FX_UINT16 spp)
+{
+ if (pDIBitmap->GetBPP() != 24 || !isSupport(pDIBitmap)) {
+ return FALSE;
+ }
+ FX_INT32 size = (FX_INT32)TIFFScanlineSize(tif_ctx);
+ FX_LPBYTE buf = (FX_LPBYTE)_TIFFmalloc(size);
+ if (buf == NULL) {
+ TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer");
+ return FALSE;
+ }
+ FX_LPBYTE bitMapbuffer = (FX_LPBYTE)pDIBitmap->GetBuffer();
+ FX_DWORD pitch = pDIBitmap->GetPitch();
+ for(FX_INT32 row = 0; row < height; row++) {
+ TIFFReadScanline(tif_ctx, buf, row, 0);
+ for(FX_INT32 j = 0; j < size - 2; j += 3) {
+ bitMapbuffer[row * pitch + j + 0] = buf[j + 2];
+ bitMapbuffer[row * pitch + j + 1] = buf[j + 1];
+ bitMapbuffer[row * pitch + j + 2] = buf[j + 0];
+ }
+ }
+ _TIFFfree(buf);
+ return TRUE;
+}
+FX_BOOL CCodec_TiffContext::Decode(CFX_DIBitmap* pDIBitmap)
+{
+ FX_DWORD img_wid = pDIBitmap->GetWidth();
+ FX_DWORD img_hei = pDIBitmap->GetHeight();
+ FX_DWORD width = 0;
+ FX_DWORD height = 0;
+ TIFFGetField(tif_ctx, TIFFTAG_IMAGEWIDTH, &width);
+ TIFFGetField(tif_ctx, TIFFTAG_IMAGELENGTH, &height);
+ if (img_wid != width || img_hei != height) {
+ return FALSE;
+ }
+ if (pDIBitmap->GetBPP() == 32) {
+ FX_WORD rotation = ORIENTATION_TOPLEFT;
+ TIFFGetField(tif_ctx, TIFFTAG_ORIENTATION, &rotation);
+ if(TIFFReadRGBAImageOriented(tif_ctx, img_wid, img_hei,
+ (uint32*)pDIBitmap->GetBuffer(), rotation, 1)) {
+ for (FX_DWORD row = 0; row < img_hei; row++) {
+ FX_LPBYTE row_buf = (FX_LPBYTE)pDIBitmap->GetScanline(row);
+ _TiffBGRA2RGBA(row_buf, img_wid, 4);
+ }
+ return TRUE;
+ }
+ }
+ FX_UINT16 spp, bps;
+ TIFFGetField(tif_ctx, TIFFTAG_SAMPLESPERPIXEL, &spp);
+ TIFFGetField(tif_ctx, TIFFTAG_BITSPERSAMPLE, &bps);
+ FX_DWORD bpp = bps * spp;
+ if (bpp == 1) {
+ return Decode1bppRGB(pDIBitmap, height, width, bps, spp);
+ } else if (bpp <= 8) {
+ return Decode8bppRGB(pDIBitmap, height, width, bps, spp);
+ } else if (bpp <= 24) {
+ return Decode24bppRGB(pDIBitmap, height, width, bps, spp);
+ }
+ return FALSE;
+}
+FX_LPVOID CCodec_TiffModule::CreateDecoder(IFX_FileRead* file_ptr)
+{
+ CCodec_TiffContext* pDecoder = FX_NEW CCodec_TiffContext;
+ if (pDecoder == NULL) {
+ return NULL;
+ }
+ if (!pDecoder->InitDecoder(file_ptr)) {
+ delete pDecoder;
+ return NULL;
+ }
+ return pDecoder;
+}
+void CCodec_TiffModule::GetFrames(FX_LPVOID ctx, FX_INT32& frames)
+{
+ CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx;
+ pDecoder->GetFrames(frames);
+}
+FX_BOOL CCodec_TiffModule::LoadFrameInfo(FX_LPVOID ctx, FX_INT32 frame, FX_DWORD& width, FX_DWORD& height, FX_DWORD& comps, FX_DWORD& bpc, CFX_DIBAttribute* pAttribute)
+{
+ CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx;
+ return pDecoder->LoadFrameInfo(frame, width, height, comps, bpc, pAttribute);
+}
+FX_BOOL CCodec_TiffModule::Decode(void* ctx, class CFX_DIBitmap* pDIBitmap)
+{
+ CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx;
+ return pDecoder->Decode(pDIBitmap);
+}
+void CCodec_TiffModule::DestroyDecoder(void* ctx)
+{
+ CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx;
+ delete pDecoder;
+}
|