diff options
Diffstat (limited to 'core/fxcodec/codec/fx_codec_tiff.cpp')
| -rw-r--r-- | core/fxcodec/codec/fx_codec_tiff.cpp | 502 |
1 files changed, 0 insertions, 502 deletions
diff --git a/core/fxcodec/codec/fx_codec_tiff.cpp b/core/fxcodec/codec/fx_codec_tiff.cpp deleted file mode 100644 index 7818a34ec6..0000000000 --- a/core/fxcodec/codec/fx_codec_tiff.cpp +++ /dev/null @@ -1,502 +0,0 @@ -// 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 <limits> - -#include "core/fxcodec/codec/codec_int.h" -#include "core/fxcodec/fx_codec.h" -#include "core/fxcrt/cfx_retain_ptr.h" -#include "core/fxcrt/fx_safe_types.h" -#include "core/fxge/fx_dib.h" -#include "third_party/base/ptr_util.h" - -extern "C" { -#include "third_party/libtiff/tiffiop.h" -} - -class CCodec_TiffContext { - public: - CCodec_TiffContext(); - ~CCodec_TiffContext(); - - bool InitDecoder(const CFX_RetainPtr<IFX_SeekableReadStream>& file_ptr); - bool LoadFrameInfo(int32_t frame, - int32_t* width, - int32_t* height, - int32_t* comps, - int32_t* bpc, - CFX_DIBAttribute* pAttribute); - bool Decode(CFX_DIBitmap* pDIBitmap); - - CFX_RetainPtr<IFX_SeekableReadStream> io_in() const { return m_io_in; } - uint32_t offset() const { return m_offset; } - void set_offset(uint32_t offset) { m_offset = offset; } - - private: - bool IsSupport(const CFX_DIBitmap* pDIBitmap) const; - void SetPalette(CFX_DIBitmap* pDIBitmap, uint16_t bps); - bool Decode1bppRGB(CFX_DIBitmap* pDIBitmap, - int32_t height, - int32_t width, - uint16_t bps, - uint16_t spp); - bool Decode8bppRGB(CFX_DIBitmap* pDIBitmap, - int32_t height, - int32_t width, - uint16_t bps, - uint16_t spp); - bool Decode24bppRGB(CFX_DIBitmap* pDIBitmap, - int32_t height, - int32_t width, - uint16_t bps, - uint16_t spp); - - CFX_RetainPtr<IFX_SeekableReadStream> m_io_in; - uint32_t m_offset; - TIFF* m_tif_ctx; -}; - -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); -} - -int _TIFFIfMultiplicationOverflow(tmsize_t op1, tmsize_t op2) { - return op1 > std::numeric_limits<tmsize_t>::max() / op2; -} - -TIFFErrorHandler _TIFFwarningHandler = nullptr; -TIFFErrorHandler _TIFFerrorHandler = nullptr; - -namespace { - -tsize_t tiff_read(thandle_t context, tdata_t buf, tsize_t length) { - CCodec_TiffContext* pTiffContext = - reinterpret_cast<CCodec_TiffContext*>(context); - FX_SAFE_UINT32 increment = pTiffContext->offset(); - increment += length; - if (!increment.IsValid()) - return 0; - - FX_FILESIZE offset = pTiffContext->offset(); - if (!pTiffContext->io_in()->ReadBlock(buf, offset, length)) - return 0; - - pTiffContext->set_offset(increment.ValueOrDie()); - if (offset + length > pTiffContext->io_in()->GetSize()) - return pTiffContext->io_in()->GetSize() - offset; - - return length; -} - -tsize_t tiff_write(thandle_t context, tdata_t buf, tsize_t length) { - ASSERT(false); - return 0; -} - -toff_t tiff_seek(thandle_t context, toff_t offset, int whence) { - CCodec_TiffContext* pTiffContext = - reinterpret_cast<CCodec_TiffContext*>(context); - FX_SAFE_FILESIZE safe_offset = offset; - if (!safe_offset.IsValid()) - return static_cast<toff_t>(-1); - FX_FILESIZE file_offset = safe_offset.ValueOrDie(); - - switch (whence) { - case 0: { - if (file_offset > pTiffContext->io_in()->GetSize()) - return static_cast<toff_t>(-1); - pTiffContext->set_offset(file_offset); - return pTiffContext->offset(); - } - case 1: { - FX_SAFE_UINT32 new_increment = pTiffContext->offset(); - new_increment += file_offset; - if (!new_increment.IsValid()) - return static_cast<toff_t>(-1); - pTiffContext->set_offset(new_increment.ValueOrDie()); - return pTiffContext->offset(); - } - case 2: { - if (pTiffContext->io_in()->GetSize() < file_offset) - return static_cast<toff_t>(-1); - pTiffContext->set_offset(pTiffContext->io_in()->GetSize() - file_offset); - return pTiffContext->offset(); - } - default: - return static_cast<toff_t>(-1); - } -} - -int tiff_close(thandle_t context) { - return 0; -} - -toff_t tiff_get_size(thandle_t context) { - CCodec_TiffContext* pTiffContext = - reinterpret_cast<CCodec_TiffContext*>(context); - return static_cast<toff_t>(pTiffContext->io_in()->GetSize()); -} - -int tiff_map(thandle_t context, tdata_t*, toff_t*) { - return 0; -} - -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; -} - -template <class T> -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; -} - -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; - } -} - -} // namespace - -CCodec_TiffContext::CCodec_TiffContext() - : m_io_in(nullptr), m_offset(0), m_tif_ctx(nullptr) {} - -CCodec_TiffContext::~CCodec_TiffContext() { - if (m_tif_ctx) - TIFFClose(m_tif_ctx); -} - -bool CCodec_TiffContext::InitDecoder( - const CFX_RetainPtr<IFX_SeekableReadStream>& file_ptr) { - m_io_in = file_ptr; - m_tif_ctx = tiff_open(this, "r"); - return !!m_tif_ctx; -} - -bool CCodec_TiffContext::LoadFrameInfo(int32_t frame, - int32_t* width, - int32_t* height, - int32_t* comps, - int32_t* bpc, - CFX_DIBAttribute* pAttribute) { - if (!TIFFSetDirectory(m_tif_ctx, (uint16)frame)) - return false; - - uint32_t tif_width = 0; - uint32_t tif_height = 0; - uint16_t tif_comps = 0; - uint16_t tif_bpc = 0; - uint32_t tif_rps = 0; - TIFFGetField(m_tif_ctx, TIFFTAG_IMAGEWIDTH, &tif_width); - TIFFGetField(m_tif_ctx, TIFFTAG_IMAGELENGTH, &tif_height); - TIFFGetField(m_tif_ctx, TIFFTAG_SAMPLESPERPIXEL, &tif_comps); - TIFFGetField(m_tif_ctx, TIFFTAG_BITSPERSAMPLE, &tif_bpc); - TIFFGetField(m_tif_ctx, TIFFTAG_ROWSPERSTRIP, &tif_rps); - - if (pAttribute) { - pAttribute->m_wDPIUnit = FXCODEC_RESUNIT_INCH; - if (TIFFGetField(m_tif_ctx, TIFFTAG_RESOLUTIONUNIT, - &pAttribute->m_wDPIUnit)) { - pAttribute->m_wDPIUnit--; - } - Tiff_Exif_GetInfo<uint16_t>(m_tif_ctx, TIFFTAG_ORIENTATION, pAttribute); - if (Tiff_Exif_GetInfo<FX_FLOAT>(m_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>(m_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(m_tif_ctx, TIFFTAG_IMAGEDESCRIPTION, pAttribute); - Tiff_Exif_GetStringInfo(m_tif_ctx, TIFFTAG_MAKE, pAttribute); - Tiff_Exif_GetStringInfo(m_tif_ctx, TIFFTAG_MODEL, pAttribute); - } - pdfium::base::CheckedNumeric<int32_t> checked_width = tif_width; - pdfium::base::CheckedNumeric<int32_t> checked_height = tif_height; - if (!checked_width.IsValid() || !checked_height.IsValid()) - return false; - - *width = checked_width.ValueOrDie(); - *height = checked_height.ValueOrDie(); - *comps = tif_comps; - *bpc = tif_bpc; - if (tif_rps > tif_height) { - tif_rps = tif_height; - TIFFSetField(m_tif_ctx, TIFFTAG_ROWSPERSTRIP, tif_rps); - } - return true; -} - -bool CCodec_TiffContext::IsSupport(const CFX_DIBitmap* pDIBitmap) const { - if (TIFFIsTiled(m_tif_ctx)) - return false; - - uint16_t photometric = 0; - if (!TIFFGetField(m_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 = 0; - if (!TIFFGetFieldDefaulted(m_tif_ctx, TIFFTAG_PLANARCONFIG, &planarconfig)) - return false; - - return planarconfig != PLANARCONFIG_SEPARATE; -} - -void CCodec_TiffContext::SetPalette(CFX_DIBitmap* pDIBitmap, uint16_t bps) { - uint16_t* red_orig = nullptr; - uint16_t* green_orig = nullptr; - uint16_t* blue_orig = nullptr; - TIFFGetField(m_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++) { - uint32_t r = red_orig[index] & 0xFF; - uint32_t g = green_orig[index] & 0xFF; - uint32_t b = blue_orig[index] & 0xFF; - uint32_t color = (uint32_t)b | ((uint32_t)g << 8) | ((uint32_t)r << 16) | - (((uint32)0xffL) << 24); - pDIBitmap->SetPaletteEntry(index, color); - } -} - -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(m_tif_ctx); - uint8_t* buf = (uint8_t*)_TIFFmalloc(size); - if (!buf) { - TIFFError(TIFFFileName(m_tif_ctx), "No space for scanline buffer"); - return false; - } - uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer(); - uint32_t pitch = pDIBitmap->GetPitch(); - for (int32_t row = 0; row < height; row++) { - TIFFReadScanline(m_tif_ctx, buf, row, 0); - for (int32_t j = 0; j < size; j++) { - bitMapbuffer[row * pitch + j] = buf[j]; - } - } - _TIFFfree(buf); - return true; -} - -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(m_tif_ctx); - uint8_t* buf = (uint8_t*)_TIFFmalloc(size); - if (!buf) { - TIFFError(TIFFFileName(m_tif_ctx), "No space for scanline buffer"); - return false; - } - uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer(); - uint32_t pitch = pDIBitmap->GetPitch(); - for (int32_t row = 0; row < height; row++) { - TIFFReadScanline(m_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; -} - -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(m_tif_ctx); - uint8_t* buf = (uint8_t*)_TIFFmalloc(size); - if (!buf) { - TIFFError(TIFFFileName(m_tif_ctx), "No space for scanline buffer"); - return false; - } - uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer(); - uint32_t pitch = pDIBitmap->GetPitch(); - for (int32_t row = 0; row < height; row++) { - TIFFReadScanline(m_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; -} - -bool CCodec_TiffContext::Decode(CFX_DIBitmap* pDIBitmap) { - uint32_t img_wid = pDIBitmap->GetWidth(); - uint32_t img_hei = pDIBitmap->GetHeight(); - uint32_t width = 0; - uint32_t height = 0; - TIFFGetField(m_tif_ctx, TIFFTAG_IMAGEWIDTH, &width); - TIFFGetField(m_tif_ctx, TIFFTAG_IMAGELENGTH, &height); - if (img_wid != width || img_hei != height) - return false; - - if (pDIBitmap->GetBPP() == 32) { - uint16_t rotation = ORIENTATION_TOPLEFT; - TIFFGetField(m_tif_ctx, TIFFTAG_ORIENTATION, &rotation); - if (TIFFReadRGBAImageOriented(m_tif_ctx, img_wid, img_hei, - (uint32*)pDIBitmap->GetBuffer(), rotation, - 1)) { - for (uint32_t 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 = 0; - uint16_t bps = 0; - TIFFGetField(m_tif_ctx, TIFFTAG_SAMPLESPERPIXEL, &spp); - TIFFGetField(m_tif_ctx, TIFFTAG_BITSPERSAMPLE, &bps); - FX_SAFE_UINT32 safe_bpp = bps; - safe_bpp *= spp; - if (!safe_bpp.IsValid()) - return false; - uint32_t bpp = safe_bpp.ValueOrDie(); - if (bpp == 1) - return Decode1bppRGB(pDIBitmap, height, width, bps, spp); - if (bpp <= 8) - return Decode8bppRGB(pDIBitmap, height, width, bps, spp); - if (bpp <= 24) - return Decode24bppRGB(pDIBitmap, height, width, bps, spp); - return false; -} - -CCodec_TiffContext* CCodec_TiffModule::CreateDecoder( - const CFX_RetainPtr<IFX_SeekableReadStream>& file_ptr) { - auto pDecoder = pdfium::MakeUnique<CCodec_TiffContext>(); - if (!pDecoder->InitDecoder(file_ptr)) - return nullptr; - - return pDecoder.release(); -} - -bool CCodec_TiffModule::LoadFrameInfo(CCodec_TiffContext* ctx, - int32_t frame, - int32_t* width, - int32_t* height, - int32_t* comps, - int32_t* bpc, - CFX_DIBAttribute* pAttribute) { - return ctx->LoadFrameInfo(frame, width, height, comps, bpc, pAttribute); -} - -bool CCodec_TiffModule::Decode(CCodec_TiffContext* ctx, - class CFX_DIBitmap* pDIBitmap) { - return ctx->Decode(pDIBitmap); -} - -void CCodec_TiffModule::DestroyDecoder(CCodec_TiffContext* ctx) { - delete ctx; -} |