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// 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.
#ifndef CORE_FXGE_SKIA_FX_SKIA_DEVICE_H_
#define CORE_FXGE_SKIA_FX_SKIA_DEVICE_H_
#if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_
#include <memory>
#include <vector>
#include "core/fxge/cfx_pathdata.h"
#include "core/fxge/renderdevicedriver_iface.h"
class FXTEXT_CHARPOS;
class SkCanvas;
class SkMatrix;
class SkPaint;
class SkPath;
class SkPictureRecorder;
class SkiaState;
struct SkIRect;
class CFX_SkiaDeviceDriver final : public RenderDeviceDriverIface {
public:
CFX_SkiaDeviceDriver(const RetainPtr<CFX_DIBitmap>& pBitmap,
bool bRgbByteOrder,
const RetainPtr<CFX_DIBitmap>& pBackdropBitmap,
bool bGroupKnockout);
#ifdef _SKIA_SUPPORT_
explicit CFX_SkiaDeviceDriver(SkPictureRecorder* recorder);
CFX_SkiaDeviceDriver(int size_x, int size_y);
#endif
~CFX_SkiaDeviceDriver() override;
/** Options */
int GetDeviceCaps(int caps_id) const override;
/** Save and restore all graphic states */
void SaveState() override;
void RestoreState(bool bKeepSaved) override;
/** Set clipping path using filled region */
bool SetClip_PathFill(
const CFX_PathData* pPathData, // path info
const CFX_Matrix* pObject2Device, // optional transformation
int fill_mode) override; // fill mode, WINDING or ALTERNATE
/** Set clipping path using stroked region */
bool SetClip_PathStroke(
const CFX_PathData* pPathData, // path info
const CFX_Matrix* pObject2Device, // required transformation
const CFX_GraphStateData*
pGraphState) // graphic state, for pen attributes
override;
/** Draw a path */
bool DrawPath(const CFX_PathData* pPathData,
const CFX_Matrix* pObject2Device,
const CFX_GraphStateData* pGraphState,
uint32_t fill_color,
uint32_t stroke_color,
int fill_mode,
int blend_type) override;
bool FillRectWithBlend(const FX_RECT& rect,
uint32_t fill_color,
int blend_type) override;
/** Draw a single pixel (device dependant) line */
bool DrawCosmeticLine(const CFX_PointF& ptMoveTo,
const CFX_PointF& ptLineTo,
uint32_t color,
int blend_type) override;
bool GetClipBox(FX_RECT* pRect) override;
/** Load device buffer into a DIB */
bool GetDIBits(const RetainPtr<CFX_DIBitmap>& pBitmap,
int left,
int top) override;
RetainPtr<CFX_DIBitmap> GetBackDrop() override;
bool SetDIBits(const RetainPtr<CFX_DIBBase>& pBitmap,
uint32_t color,
const FX_RECT* pSrcRect,
int dest_left,
int dest_top,
int blend_type) override;
#ifdef _SKIA_SUPPORT_
bool SetBitsWithMask(const RetainPtr<CFX_DIBBase>& pBitmap,
const RetainPtr<CFX_DIBBase>& pMask,
int dest_left,
int dest_top,
int bitmap_alpha,
int blend_type) override;
#endif
#ifdef _SKIA_SUPPORT_PATHS_
void SetClipMask(const FX_RECT& clipBox, const SkPath& skClipPath);
#endif
bool StretchDIBits(const RetainPtr<CFX_DIBBase>& pBitmap,
uint32_t color,
int dest_left,
int dest_top,
int dest_width,
int dest_height,
const FX_RECT* pClipRect,
uint32_t flags,
int blend_type) override;
bool StartDIBits(const RetainPtr<CFX_DIBBase>& pBitmap,
int bitmap_alpha,
uint32_t color,
const CFX_Matrix* pMatrix,
uint32_t flags,
std::unique_ptr<CFX_ImageRenderer>* handle,
int blend_type) override;
bool ContinueDIBits(CFX_ImageRenderer* handle,
PauseIndicatorIface* pPause) override;
bool DrawBitsWithMask(const RetainPtr<CFX_DIBBase>& pBitmap,
const RetainPtr<CFX_DIBBase>& pMask,
int bitmap_alpha,
const CFX_Matrix* pMatrix,
int blend_type);
bool DrawDeviceText(int nChars,
const FXTEXT_CHARPOS* pCharPos,
CFX_Font* pFont,
const CFX_Matrix* pObject2Device,
float font_size,
uint32_t color) override;
bool DrawShading(const CPDF_ShadingPattern* pPattern,
const CFX_Matrix* pMatrix,
const FX_RECT& clip_rect,
int alpha,
bool bAlphaMode) override;
virtual uint8_t* GetBuffer() const;
void PaintStroke(SkPaint* spaint,
const CFX_GraphStateData* pGraphState,
const SkMatrix& matrix);
void Clear(uint32_t color);
void Flush() override;
SkPictureRecorder* GetRecorder() const { return m_pRecorder; }
void PreMultiply();
static void PreMultiply(const RetainPtr<CFX_DIBitmap>& pDIBitmap);
SkCanvas* SkiaCanvas() { return m_pCanvas; }
void DebugVerifyBitmapIsPreMultiplied() const;
void Dump() const;
bool GetGroupKnockout() const { return m_bGroupKnockout; }
private:
RetainPtr<CFX_DIBitmap> m_pBitmap;
RetainPtr<CFX_DIBitmap> m_pBackdropBitmap;
SkCanvas* m_pCanvas;
SkPictureRecorder* const m_pRecorder;
std::unique_ptr<SkiaState> m_pCache;
#ifdef _SKIA_SUPPORT_PATHS_
std::unique_ptr<CFX_ClipRgn> m_pClipRgn;
std::vector<std::unique_ptr<CFX_ClipRgn>> m_StateStack;
int m_FillFlags;
bool m_bRgbByteOrder;
#endif
bool m_bGroupKnockout;
};
#endif // defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_
#endif // CORE_FXGE_SKIA_FX_SKIA_DEVICE_H_
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