| // Copyright 2016 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 |
| |
| #ifndef CORE_FXCODEC_JPEG_JPEGMODULE_H_ |
| #define CORE_FXCODEC_JPEG_JPEGMODULE_H_ |
| |
| #include <csetjmp> |
| #include <memory> |
| |
| #include "build/build_config.h" |
| #include "core/fxcodec/codec_module_iface.h" |
| #include "third_party/base/span.h" |
| |
| class CFX_DIBBase; |
| |
| namespace fxcodec { |
| |
| class CFX_DIBAttribute; |
| class ScanlineDecoder; |
| |
| class JpegModule final : public ModuleIface { |
| public: |
| std::unique_ptr<ScanlineDecoder> CreateDecoder( |
| pdfium::span<const uint8_t> src_span, |
| int width, |
| int height, |
| int nComps, |
| bool ColorTransform); |
| |
| // ModuleIface: |
| FX_FILESIZE GetAvailInput(Context* pContext) const override; |
| bool Input(Context* pContext, |
| RetainPtr<CFX_CodecMemory> codec_memory, |
| CFX_DIBAttribute* pAttribute) override; |
| |
| jmp_buf* GetJumpMark(Context* pContext); |
| bool LoadInfo(pdfium::span<const uint8_t> src_span, |
| int* width, |
| int* height, |
| int* num_components, |
| int* bits_per_components, |
| bool* color_transform); |
| |
| std::unique_ptr<Context> Start(); |
| |
| #ifdef PDF_ENABLE_XFA |
| int ReadHeader(Context* pContext, |
| int* width, |
| int* height, |
| int* nComps, |
| CFX_DIBAttribute* pAttribute); |
| #endif // PDF_ENABLE_XFA |
| |
| bool StartScanline(Context* pContext, int down_scale); |
| bool ReadScanline(Context* pContext, uint8_t* dest_buf); |
| |
| #if defined(OS_WIN) |
| static bool JpegEncode(const RetainPtr<CFX_DIBBase>& pSource, |
| uint8_t** dest_buf, |
| size_t* dest_size); |
| #endif // defined(OS_WIN) |
| }; |
| |
| } // namespace fxcodec |
| |
| using JpegModule = fxcodec::JpegModule; |
| |
| #endif // CORE_FXCODEC_JPEG_JPEGMODULE_H_ |