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Unified Diff: core/src/fxcodec/codec/fx_codec_tiff.cpp

Issue 1641963002: XFA: Fix DOS newlines, final round. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@xfa
Patch Set: Created 4 years, 11 months ago
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Index: core/src/fxcodec/codec/fx_codec_tiff.cpp
diff --git a/core/src/fxcodec/codec/fx_codec_tiff.cpp b/core/src/fxcodec/codec/fx_codec_tiff.cpp
index d158c0009a6bf84adbc21f7444accf1dd48373aa..cfdc5feb97db2fef8b05ac6c6623653cf647a884 100644
--- a/core/src/fxcodec/codec/fx_codec_tiff.cpp
+++ b/core/src/fxcodec/codec/fx_codec_tiff.cpp
@@ -1,544 +1,544 @@
-// 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 "core/include/fxcodec/fx_codec.h"
-#include "core/include/fxge/fx_dib.h"
-#include "codec_int.h"
-
-extern "C" {
-#include "third_party/libtiff/tiffiop.h"
-}
-
-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);
-class CCodec_TiffContext {
- public:
- CCodec_TiffContext();
- ~CCodec_TiffContext();
-
- FX_BOOL InitDecoder(IFX_FileRead* file_ptr);
- void GetFrames(int32_t& frames);
- FX_BOOL LoadFrameInfo(int32_t 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;
- int32_t frame_num;
- int32_t frame_cur;
- FX_BOOL isDecoder;
-
- private:
- FX_BOOL isSupport(CFX_DIBitmap* pDIBitmap);
- void SetPalette(CFX_DIBitmap* pDIBitmap, uint16_t bps);
- FX_BOOL Decode1bppRGB(CFX_DIBitmap* pDIBitmap,
- int32_t height,
- int32_t width,
- uint16_t bps,
- uint16_t spp);
- FX_BOOL Decode8bppRGB(CFX_DIBitmap* pDIBitmap,
- int32_t height,
- int32_t width,
- uint16_t bps,
- uint16_t spp);
- FX_BOOL Decode24bppRGB(CFX_DIBitmap* pDIBitmap,
- int32_t height,
- int32_t width,
- uint16_t bps,
- uint16_t 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 (icc_ctx) {
- IccLib_DestroyTransform(icc_ctx);
- icc_ctx = NULL;
- }
- 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)(intptr_t)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_memset(ptr, val, (size_t)size);
-}
-void _TIFFmemcpy(void* des, const void* src, tmsize_t size) {
- FXSYS_memcpy(des, src, (size_t)size);
-}
-int _TIFFmemcmp(const void* ptr1, const void* ptr2, tmsize_t size) {
- return FXSYS_memcmp(ptr1, ptr2, (size_t)size);
-}
-
-TIFFErrorHandler _TIFFwarningHandler = nullptr;
-TIFFErrorHandler _TIFFerrorHandler = nullptr;
-
-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 (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 {
- AdobeCMYK_to_sRGB1(c, m, y, k, *r, *g, *b);
- }
- 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(int32_t& 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(uint8_t, 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; \
- uint8_t* buf = NULL; \
- TIFFGetField(tif_ctx, tag, &size, &buf); \
- if (size && buf) { \
- (key) = FX_Alloc(uint8_t, size); \
- if ((key)) { \
- FXSYS_memcpy((key), buf, size); \
- pExif->m_TagVal.SetAt(tag, (key)); \
- } \
- } \
- } \
- (key) = NULL;
-
-namespace {
-
-template <class T>
-FX_BOOL Tiff_Exif_GetInfo(TIFF* tif_ctx, ttag_t tag, CFX_DIBAttribute* pAttr) {
- T val = 0;
- TIFFGetField(tif_ctx, tag, &val);
- if (!val)
- return FALSE;
- T* ptr = FX_Alloc(T, 1);
- *ptr = val;
- pAttr->m_Exif[tag] = (void*)ptr;
- return TRUE;
-}
-void Tiff_Exif_GetStringInfo(TIFF* tif_ctx,
- ttag_t tag,
- CFX_DIBAttribute* pAttr) {
- FX_CHAR* buf = nullptr;
- TIFFGetField(tif_ctx, tag, &buf);
- if (!buf)
- return;
- FX_STRSIZE size = FXSYS_strlen(buf);
- uint8_t* ptr = FX_Alloc(uint8_t, size + 1);
- FXSYS_memcpy(ptr, buf, size);
- ptr[size] = 0;
- pAttr->m_Exif[tag] = ptr;
-}
-
-} // namespace
-
-FX_BOOL CCodec_TiffContext::LoadFrameInfo(int32_t 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;
- uint8_t* 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;
- }
- Tiff_Exif_GetInfo<FX_WORD>(tif_ctx, TIFFTAG_ORIENTATION, pAttribute);
- if (Tiff_Exif_GetInfo<FX_FLOAT>(tif_ctx, TIFFTAG_XRESOLUTION, pAttribute)) {
- void* val = pAttribute->m_Exif[TIFFTAG_XRESOLUTION];
- FX_FLOAT fDpi = val ? *reinterpret_cast<FX_FLOAT*>(val) : 0;
- pAttribute->m_nXDPI = (int32_t)(fDpi + 0.5f);
- }
- if (Tiff_Exif_GetInfo<FX_FLOAT>(tif_ctx, TIFFTAG_YRESOLUTION, pAttribute)) {
- void* val = pAttribute->m_Exif[TIFFTAG_YRESOLUTION];
- FX_FLOAT fDpi = val ? *reinterpret_cast<FX_FLOAT*>(val) : 0;
- pAttribute->m_nYDPI = (int32_t)(fDpi + 0.5f);
- }
- Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_IMAGEDESCRIPTION, pAttribute);
- Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_MAKE, pAttribute);
- Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_MODEL, pAttribute);
- }
- bpc = tif_bpc;
- if (tif_rps > height) {
- TIFFSetField(tif_ctx, TIFFTAG_ROWSPERSTRIP, tif_rps = height);
- }
- return TRUE;
-}
-void _TiffBGRA2RGBA(uint8_t* pBuf, int32_t pixel, int32_t spp) {
- for (int32_t n = 0; n < pixel; n++) {
- uint8_t 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;
- }
- uint16_t 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;
- }
- uint16_t 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, uint16_t bps) {
- uint16_t *red_orig, *green_orig, *blue_orig;
- TIFFGetField(tif_ctx, TIFFTAG_COLORMAP, &red_orig, &green_orig, &blue_orig);
- for (int32_t i = (1L << bps) - 1; i >= 0; i--) {
-#define CVT(x) ((uint16_t)((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
- }
- int32_t len = 1 << bps;
- for (int32_t 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 = (uint32_t)b | ((uint32_t)g << 8) | ((uint32_t)r << 16) |
- (((uint32)0xffL) << 24);
- pDIBitmap->SetPaletteEntry(index, color);
- }
-}
-FX_BOOL CCodec_TiffContext::Decode1bppRGB(CFX_DIBitmap* pDIBitmap,
- int32_t height,
- int32_t width,
- uint16_t bps,
- uint16_t spp) {
- if (pDIBitmap->GetBPP() != 1 || spp != 1 || bps != 1 ||
- !isSupport(pDIBitmap)) {
- return FALSE;
- }
- SetPalette(pDIBitmap, bps);
- int32_t size = (int32_t)TIFFScanlineSize(tif_ctx);
- uint8_t* buf = (uint8_t*)_TIFFmalloc(size);
- if (buf == NULL) {
- TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer");
- return FALSE;
- }
- uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer();
- FX_DWORD pitch = pDIBitmap->GetPitch();
- for (int32_t row = 0; row < height; row++) {
- TIFFReadScanline(tif_ctx, buf, row, 0);
- for (int32_t j = 0; j < size; j++) {
- bitMapbuffer[row * pitch + j] = buf[j];
- }
- }
- _TIFFfree(buf);
- return TRUE;
-}
-FX_BOOL CCodec_TiffContext::Decode8bppRGB(CFX_DIBitmap* pDIBitmap,
- int32_t height,
- int32_t width,
- uint16_t bps,
- uint16_t spp) {
- if (pDIBitmap->GetBPP() != 8 || spp != 1 || (bps != 4 && bps != 8) ||
- !isSupport(pDIBitmap)) {
- return FALSE;
- }
- SetPalette(pDIBitmap, bps);
- int32_t size = (int32_t)TIFFScanlineSize(tif_ctx);
- uint8_t* buf = (uint8_t*)_TIFFmalloc(size);
- if (buf == NULL) {
- TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer");
- return FALSE;
- }
- uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer();
- FX_DWORD pitch = pDIBitmap->GetPitch();
- for (int32_t row = 0; row < height; row++) {
- TIFFReadScanline(tif_ctx, buf, row, 0);
- for (int32_t 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,
- int32_t height,
- int32_t width,
- uint16_t bps,
- uint16_t spp) {
- if (pDIBitmap->GetBPP() != 24 || !isSupport(pDIBitmap)) {
- return FALSE;
- }
- int32_t size = (int32_t)TIFFScanlineSize(tif_ctx);
- uint8_t* buf = (uint8_t*)_TIFFmalloc(size);
- if (buf == NULL) {
- TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer");
- return FALSE;
- }
- uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer();
- FX_DWORD pitch = pDIBitmap->GetPitch();
- for (int32_t row = 0; row < height; row++) {
- TIFFReadScanline(tif_ctx, buf, row, 0);
- for (int32_t 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++) {
- uint8_t* row_buf = (uint8_t*)pDIBitmap->GetScanline(row);
- _TiffBGRA2RGBA(row_buf, img_wid, 4);
- }
- return TRUE;
- }
- }
- uint16_t 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;
-}
-void* CCodec_TiffModule::CreateDecoder(IFX_FileRead* file_ptr) {
- CCodec_TiffContext* pDecoder = new CCodec_TiffContext;
- if (!pDecoder->InitDecoder(file_ptr)) {
- delete pDecoder;
- return NULL;
- }
- return pDecoder;
-}
-void CCodec_TiffModule::GetFrames(void* ctx, int32_t& frames) {
- CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx;
- pDecoder->GetFrames(frames);
-}
-FX_BOOL CCodec_TiffModule::LoadFrameInfo(void* ctx,
- int32_t 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;
-}
+// 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 "core/include/fxcodec/fx_codec.h"
+#include "core/include/fxge/fx_dib.h"
+#include "codec_int.h"
+
+extern "C" {
+#include "third_party/libtiff/tiffiop.h"
+}
+
+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);
+class CCodec_TiffContext {
+ public:
+ CCodec_TiffContext();
+ ~CCodec_TiffContext();
+
+ FX_BOOL InitDecoder(IFX_FileRead* file_ptr);
+ void GetFrames(int32_t& frames);
+ FX_BOOL LoadFrameInfo(int32_t 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;
+ int32_t frame_num;
+ int32_t frame_cur;
+ FX_BOOL isDecoder;
+
+ private:
+ FX_BOOL isSupport(CFX_DIBitmap* pDIBitmap);
+ void SetPalette(CFX_DIBitmap* pDIBitmap, uint16_t bps);
+ FX_BOOL Decode1bppRGB(CFX_DIBitmap* pDIBitmap,
+ int32_t height,
+ int32_t width,
+ uint16_t bps,
+ uint16_t spp);
+ FX_BOOL Decode8bppRGB(CFX_DIBitmap* pDIBitmap,
+ int32_t height,
+ int32_t width,
+ uint16_t bps,
+ uint16_t spp);
+ FX_BOOL Decode24bppRGB(CFX_DIBitmap* pDIBitmap,
+ int32_t height,
+ int32_t width,
+ uint16_t bps,
+ uint16_t 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 (icc_ctx) {
+ IccLib_DestroyTransform(icc_ctx);
+ icc_ctx = NULL;
+ }
+ 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)(intptr_t)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_memset(ptr, val, (size_t)size);
+}
+void _TIFFmemcpy(void* des, const void* src, tmsize_t size) {
+ FXSYS_memcpy(des, src, (size_t)size);
+}
+int _TIFFmemcmp(const void* ptr1, const void* ptr2, tmsize_t size) {
+ return FXSYS_memcmp(ptr1, ptr2, (size_t)size);
+}
+
+TIFFErrorHandler _TIFFwarningHandler = nullptr;
+TIFFErrorHandler _TIFFerrorHandler = nullptr;
+
+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 (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 {
+ AdobeCMYK_to_sRGB1(c, m, y, k, *r, *g, *b);
+ }
+ 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(int32_t& 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(uint8_t, 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; \
+ uint8_t* buf = NULL; \
+ TIFFGetField(tif_ctx, tag, &size, &buf); \
+ if (size && buf) { \
+ (key) = FX_Alloc(uint8_t, size); \
+ if ((key)) { \
+ FXSYS_memcpy((key), buf, size); \
+ pExif->m_TagVal.SetAt(tag, (key)); \
+ } \
+ } \
+ } \
+ (key) = NULL;
+
+namespace {
+
+template <class T>
+FX_BOOL Tiff_Exif_GetInfo(TIFF* tif_ctx, ttag_t tag, CFX_DIBAttribute* pAttr) {
+ T val = 0;
+ TIFFGetField(tif_ctx, tag, &val);
+ if (!val)
+ return FALSE;
+ T* ptr = FX_Alloc(T, 1);
+ *ptr = val;
+ pAttr->m_Exif[tag] = (void*)ptr;
+ return TRUE;
+}
+void Tiff_Exif_GetStringInfo(TIFF* tif_ctx,
+ ttag_t tag,
+ CFX_DIBAttribute* pAttr) {
+ FX_CHAR* buf = nullptr;
+ TIFFGetField(tif_ctx, tag, &buf);
+ if (!buf)
+ return;
+ FX_STRSIZE size = FXSYS_strlen(buf);
+ uint8_t* ptr = FX_Alloc(uint8_t, size + 1);
+ FXSYS_memcpy(ptr, buf, size);
+ ptr[size] = 0;
+ pAttr->m_Exif[tag] = ptr;
+}
+
+} // namespace
+
+FX_BOOL CCodec_TiffContext::LoadFrameInfo(int32_t 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;
+ uint8_t* 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;
+ }
+ Tiff_Exif_GetInfo<FX_WORD>(tif_ctx, TIFFTAG_ORIENTATION, pAttribute);
+ if (Tiff_Exif_GetInfo<FX_FLOAT>(tif_ctx, TIFFTAG_XRESOLUTION, pAttribute)) {
+ void* val = pAttribute->m_Exif[TIFFTAG_XRESOLUTION];
+ FX_FLOAT fDpi = val ? *reinterpret_cast<FX_FLOAT*>(val) : 0;
+ pAttribute->m_nXDPI = (int32_t)(fDpi + 0.5f);
+ }
+ if (Tiff_Exif_GetInfo<FX_FLOAT>(tif_ctx, TIFFTAG_YRESOLUTION, pAttribute)) {
+ void* val = pAttribute->m_Exif[TIFFTAG_YRESOLUTION];
+ FX_FLOAT fDpi = val ? *reinterpret_cast<FX_FLOAT*>(val) : 0;
+ pAttribute->m_nYDPI = (int32_t)(fDpi + 0.5f);
+ }
+ Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_IMAGEDESCRIPTION, pAttribute);
+ Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_MAKE, pAttribute);
+ Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_MODEL, pAttribute);
+ }
+ bpc = tif_bpc;
+ if (tif_rps > height) {
+ TIFFSetField(tif_ctx, TIFFTAG_ROWSPERSTRIP, tif_rps = height);
+ }
+ return TRUE;
+}
+void _TiffBGRA2RGBA(uint8_t* pBuf, int32_t pixel, int32_t spp) {
+ for (int32_t n = 0; n < pixel; n++) {
+ uint8_t 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;
+ }
+ uint16_t 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;
+ }
+ uint16_t 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, uint16_t bps) {
+ uint16_t *red_orig, *green_orig, *blue_orig;
+ TIFFGetField(tif_ctx, TIFFTAG_COLORMAP, &red_orig, &green_orig, &blue_orig);
+ for (int32_t i = (1L << bps) - 1; i >= 0; i--) {
+#define CVT(x) ((uint16_t)((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
+ }
+ int32_t len = 1 << bps;
+ for (int32_t 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 = (uint32_t)b | ((uint32_t)g << 8) | ((uint32_t)r << 16) |
+ (((uint32)0xffL) << 24);
+ pDIBitmap->SetPaletteEntry(index, color);
+ }
+}
+FX_BOOL CCodec_TiffContext::Decode1bppRGB(CFX_DIBitmap* pDIBitmap,
+ int32_t height,
+ int32_t width,
+ uint16_t bps,
+ uint16_t spp) {
+ if (pDIBitmap->GetBPP() != 1 || spp != 1 || bps != 1 ||
+ !isSupport(pDIBitmap)) {
+ return FALSE;
+ }
+ SetPalette(pDIBitmap, bps);
+ int32_t size = (int32_t)TIFFScanlineSize(tif_ctx);
+ uint8_t* buf = (uint8_t*)_TIFFmalloc(size);
+ if (buf == NULL) {
+ TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer");
+ return FALSE;
+ }
+ uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer();
+ FX_DWORD pitch = pDIBitmap->GetPitch();
+ for (int32_t row = 0; row < height; row++) {
+ TIFFReadScanline(tif_ctx, buf, row, 0);
+ for (int32_t j = 0; j < size; j++) {
+ bitMapbuffer[row * pitch + j] = buf[j];
+ }
+ }
+ _TIFFfree(buf);
+ return TRUE;
+}
+FX_BOOL CCodec_TiffContext::Decode8bppRGB(CFX_DIBitmap* pDIBitmap,
+ int32_t height,
+ int32_t width,
+ uint16_t bps,
+ uint16_t spp) {
+ if (pDIBitmap->GetBPP() != 8 || spp != 1 || (bps != 4 && bps != 8) ||
+ !isSupport(pDIBitmap)) {
+ return FALSE;
+ }
+ SetPalette(pDIBitmap, bps);
+ int32_t size = (int32_t)TIFFScanlineSize(tif_ctx);
+ uint8_t* buf = (uint8_t*)_TIFFmalloc(size);
+ if (buf == NULL) {
+ TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer");
+ return FALSE;
+ }
+ uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer();
+ FX_DWORD pitch = pDIBitmap->GetPitch();
+ for (int32_t row = 0; row < height; row++) {
+ TIFFReadScanline(tif_ctx, buf, row, 0);
+ for (int32_t 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,
+ int32_t height,
+ int32_t width,
+ uint16_t bps,
+ uint16_t spp) {
+ if (pDIBitmap->GetBPP() != 24 || !isSupport(pDIBitmap)) {
+ return FALSE;
+ }
+ int32_t size = (int32_t)TIFFScanlineSize(tif_ctx);
+ uint8_t* buf = (uint8_t*)_TIFFmalloc(size);
+ if (buf == NULL) {
+ TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer");
+ return FALSE;
+ }
+ uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer();
+ FX_DWORD pitch = pDIBitmap->GetPitch();
+ for (int32_t row = 0; row < height; row++) {
+ TIFFReadScanline(tif_ctx, buf, row, 0);
+ for (int32_t 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++) {
+ uint8_t* row_buf = (uint8_t*)pDIBitmap->GetScanline(row);
+ _TiffBGRA2RGBA(row_buf, img_wid, 4);
+ }
+ return TRUE;
+ }
+ }
+ uint16_t 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;
+}
+void* CCodec_TiffModule::CreateDecoder(IFX_FileRead* file_ptr) {
+ CCodec_TiffContext* pDecoder = new CCodec_TiffContext;
+ if (!pDecoder->InitDecoder(file_ptr)) {
+ delete pDecoder;
+ return NULL;
+ }
+ return pDecoder;
+}
+void CCodec_TiffModule::GetFrames(void* ctx, int32_t& frames) {
+ CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx;
+ pDecoder->GetFrames(frames);
+}
+FX_BOOL CCodec_TiffModule::LoadFrameInfo(void* ctx,
+ int32_t 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;
+}
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