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// 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_FXGE_WIN32_CFX_PSRENDERER_H_
#define CORE_FXGE_WIN32_CFX_PSRENDERER_H_
#include <memory>
#include <vector>
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/fx_memory_wrappers.h"
#include "core/fxcrt/fx_stream.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxge/cfx_graphstatedata.h"
class CFX_DIBBase;
class CFX_GlyphCache;
class CFX_Font;
class CFX_PathData;
class CPSFont;
class TextCharPos;
struct CFX_FillRenderOptions;
struct FXDIB_ResampleOptions;
struct EncoderIface {
bool (*pA85EncodeFunc)(pdfium::span<const uint8_t> src_buf,
std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
uint32_t* dest_size);
void (*pFaxEncodeFunc)(const uint8_t* src_buf,
int width,
int height,
int pitch,
std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
uint32_t* dest_size);
bool (*pFlateEncodeFunc)(const uint8_t* src_buf,
uint32_t src_size,
std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
uint32_t* dest_size);
bool (*pJpegEncodeFunc)(const RetainPtr<CFX_DIBBase>& pSource,
uint8_t** dest_buf,
size_t* dest_size);
bool (*pRunLengthEncodeFunc)(
pdfium::span<const uint8_t> src_buf,
std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
uint32_t* dest_size);
};
class CFX_PSRenderer {
public:
explicit CFX_PSRenderer(const EncoderIface* pEncoderIface);
~CFX_PSRenderer();
void Init(const RetainPtr<IFX_RetainableWriteStream>& stream,
int pslevel,
int width,
int height);
bool StartRendering();
void EndRendering();
void SaveState();
void RestoreState(bool bKeepSaved);
void SetClip_PathFill(const CFX_PathData* pPathData,
const CFX_Matrix* pObject2Device,
const CFX_FillRenderOptions& fill_options);
void SetClip_PathStroke(const CFX_PathData* pPathData,
const CFX_Matrix* pObject2Device,
const CFX_GraphStateData* pGraphState);
FX_RECT GetClipBox() { return m_ClipBox; }
bool DrawPath(const CFX_PathData* pPathData,
const CFX_Matrix* pObject2Device,
const CFX_GraphStateData* pGraphState,
uint32_t fill_color,
uint32_t stroke_color,
const CFX_FillRenderOptions& fill_options);
bool SetDIBits(const RetainPtr<CFX_DIBBase>& pBitmap,
uint32_t color,
int dest_left,
int dest_top);
bool StretchDIBits(const RetainPtr<CFX_DIBBase>& pBitmap,
uint32_t color,
int dest_left,
int dest_top,
int dest_width,
int dest_height,
const FXDIB_ResampleOptions& options);
bool DrawDIBits(const RetainPtr<CFX_DIBBase>& pBitmap,
uint32_t color,
const CFX_Matrix& matrix,
const FXDIB_ResampleOptions& options);
bool DrawText(int nChars,
const TextCharPos* pCharPos,
CFX_Font* pFont,
const CFX_Matrix& mtObject2Device,
float font_size,
uint32_t color);
private:
void OutputPath(const CFX_PathData* pPathData,
const CFX_Matrix* pObject2Device);
void SetGraphState(const CFX_GraphStateData* pGraphState);
void SetColor(uint32_t color);
void FindPSFontGlyph(CFX_GlyphCache* pGlyphCache,
CFX_Font* pFont,
const TextCharPos& charpos,
int* ps_fontnum,
int* ps_glyphindex);
bool FaxCompressData(std::unique_ptr<uint8_t, FxFreeDeleter> src_buf,
int width,
int height,
std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
uint32_t* dest_size) const;
void PSCompressData(uint8_t* src_buf,
uint32_t src_size,
uint8_t** output_buf,
uint32_t* output_size,
const char** filter) const;
void WritePSBinary(const uint8_t* data, int len);
void WriteToStream(std::ostringstream* stringStream);
bool m_bInited = false;
bool m_bGraphStateSet = false;
bool m_bColorSet = false;
int m_PSLevel = 0;
uint32_t m_LastColor = 0;
FX_RECT m_ClipBox;
CFX_GraphStateData m_CurGraphState;
const EncoderIface* const m_pEncoderIface;
RetainPtr<IFX_RetainableWriteStream> m_pStream;
std::vector<std::unique_ptr<CPSFont>> m_PSFontList;
std::vector<FX_RECT> m_ClipBoxStack;
};
#endif // CORE_FXGE_WIN32_CFX_PSRENDERER_H_