core/fxge/include/cfx_renderdevice.h - pdfium - Git at Google


            
            // 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_INCLUDE_CFX_RENDERDEVICE_H_

            
            #define CORE_FXGE_INCLUDE_CFX_RENDERDEVICE_H_


            #include <memory>


            #include "core/fxge/include/cfx_gemodule.h"

            
            #include "core/fxge/include/fx_dib.h"

            
            #include "core/fxge/include/fx_font.h"


            class CFX_Font;

            
            class CFX_FontCache;

            
            class CFX_GraphStateData;

            
            class IFX_RenderDeviceDriver;


            #define FXDC_DEVICE_CLASS 1

            
            #define FXDC_PIXEL_WIDTH 2

            
            #define FXDC_PIXEL_HEIGHT 3

            
            #define FXDC_BITS_PIXEL 4

            
            #define FXDC_HORZ_SIZE 5

            
            #define FXDC_VERT_SIZE 6

            
            #define FXDC_RENDER_CAPS 7

            
            #define FXDC_DISPLAY 1

            
            #define FXDC_PRINTER 2


            #define FXPT_CLOSEFIGURE 0x01

            
            #define FXPT_LINETO 0x02

            
            #define FXPT_BEZIERTO 0x04

            
            #define FXPT_MOVETO 0x06

            
            #define FXPT_TYPE 0x06


            #define FXRC_GET_BITS 0x01

            
            #define FXRC_BIT_MASK 0x02

            
            #define FXRC_ALPHA_MASK 0x04

            
            #define FXRC_ALPHA_PATH 0x10

            
            #define FXRC_ALPHA_IMAGE 0x20

            
            #define FXRC_ALPHA_OUTPUT 0x40

            
            #define FXRC_BLEND_MODE 0x80

            
            #define FXRC_SOFT_CLIP 0x100

            
            #define FXRC_CMYK_OUTPUT 0x200

            
            #define FXRC_BITMASK_OUTPUT 0x400

            
            #define FXRC_BYTEMASK_OUTPUT 0x800

            
            #define FXRENDER_IMAGE_LOSSY 0x1000

            
            #define FXRC_FILLSTROKE_PATH 0x2000

            
            #define FXRC_SHADING 0x4000


            #define FXFILL_ALTERNATE 1

            
            #define FXFILL_WINDING 2

            
            #define FXFILL_FULLCOVER 4

            
            #define FXFILL_RECT_AA 8

            
            #define FX_FILL_STROKE 16

            
            #define FX_STROKE_ADJUST 32

            
            #define FX_STROKE_TEXT_MODE 64

            
            #define FX_FILL_TEXT_MODE 128

            
            #define FX_ZEROAREA_FILL 256

            
            #define FXFILL_NOPATHSMOOTH 512


            #define FXTEXT_CLEARTYPE 0x01

            
            #define FXTEXT_BGR_STRIPE 0x02

            
            #define FXTEXT_PRINTGRAPHICTEXT 0x04

            
            #define FXTEXT_NO_NATIVETEXT 0x08

            
            #define FXTEXT_PRINTIMAGETEXT 0x10

            
            #define FXTEXT_NOSMOOTH 0x20


            struct FXTEXT_CHARPOS {

            
              FX_FLOAT m_AdjustMatrix[4];

            
              FX_FLOAT m_OriginX;

            
              FX_FLOAT m_OriginY;

            
              uint32_t m_GlyphIndex;

            
              int32_t m_FontCharWidth;

            
            #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_

            
              uint32_t m_ExtGID;

            
            #endif

            
              int32_t m_FallbackFontPosition;

            
              bool m_bGlyphAdjust;

            
              bool m_bFontStyle;

            
            };


            class CFX_RenderDevice {

            
             public:

            
              CFX_RenderDevice();

            
              virtual ~CFX_RenderDevice();


              // Take ownership of |pDriver|.

            
              void SetDeviceDriver(std::unique_ptr<IFX_RenderDeviceDriver> pDriver);

            
              IFX_RenderDeviceDriver* GetDeviceDriver() const {

            
                return m_pDeviceDriver.get();

            
              }


              void SaveState();

            
              void RestoreState(bool bKeepSaved);


              int GetWidth() const { return m_Width; }

            
              int GetHeight() const { return m_Height; }

            
              int GetDeviceClass() const { return m_DeviceClass; }

            
              int GetRenderCaps() const { return m_RenderCaps; }

            
              int GetDeviceCaps(int id) const;

            
              CFX_Matrix GetCTM() const;

            
              CFX_DIBitmap* GetBitmap() const { return m_pBitmap; }

            
              void SetBitmap(CFX_DIBitmap* pBitmap) { m_pBitmap = pBitmap; }

            
              FX_BOOL CreateCompatibleBitmap(CFX_DIBitmap* pDIB,

            
                                             int width,

            
                                             int height) const;

            
              const FX_RECT& GetClipBox() const { return m_ClipBox; }

            
              FX_BOOL SetClip_PathFill(const CFX_PathData* pPathData,

            
                                       const CFX_Matrix* pObject2Device,

            
                                       int fill_mode);

            
              FX_BOOL SetClip_Rect(const FX_RECT& pRect);

            
              FX_BOOL SetClip_PathStroke(const CFX_PathData* pPathData,

            
                                         const CFX_Matrix* pObject2Device,

            
                                         const CFX_GraphStateData* pGraphState);

            
              FX_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) {

            
                return DrawPathWithBlend(pPathData, pObject2Device, pGraphState, fill_color,

            
                                         stroke_color, fill_mode, FXDIB_BLEND_NORMAL);

            
              }

            
              FX_BOOL DrawPathWithBlend(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);

            
              FX_BOOL SetPixel(int x, int y, uint32_t color);

            
              FX_BOOL FillRect(const FX_RECT* pRect, uint32_t color) {

            
                return FillRectWithBlend(pRect, color, FXDIB_BLEND_NORMAL);

            
              }

            
              FX_BOOL FillRectWithBlend(const FX_RECT* pRect,

            
                                        uint32_t color,

            
                                        int blend_type);

            
              FX_BOOL DrawCosmeticLine(FX_FLOAT x1,

            
                                                           FX_FLOAT y1,

            
                                                           FX_FLOAT x2,

            
                                                           FX_FLOAT y2,

            
                                                           uint32_t color,

            
                                                           int fill_mode,

            
                                                           int blend_type);


              FX_BOOL GetDIBits(CFX_DIBitmap* pBitmap, int left, int top);

            
              CFX_DIBitmap* GetBackDrop();

            
              FX_BOOL SetDIBits(const CFX_DIBSource* pBitmap, int left, int top) {

            
                return SetDIBitsWithBlend(pBitmap, left, top, FXDIB_BLEND_NORMAL);

            
              }

            
              FX_BOOL SetDIBitsWithBlend(const CFX_DIBSource* pBitmap,

            
                                         int left,

            
                                         int top,

            
                                         int blend_type);

            
              FX_BOOL StretchDIBits(const CFX_DIBSource* pBitmap,

            
                                    int left,

            
                                    int top,

            
                                    int dest_width,

            
                                    int dest_height) {

            
                return StretchDIBitsWithFlagsAndBlend(pBitmap, left, top, dest_width,

            
                                                      dest_height, 0, FXDIB_BLEND_NORMAL);

            
              }

            
              FX_BOOL StretchDIBitsWithFlagsAndBlend(const CFX_DIBSource* pBitmap,

            
                                                     int left,

            
                                                     int top,

            
                                                     int dest_width,

            
                                                     int dest_height,

            
                                                     uint32_t flags,

            
                                                     int blend_type);

            
              FX_BOOL SetBitMask(const CFX_DIBSource* pBitmap,

            
                                 int left,

            
                                 int top,

            
                                 uint32_t color);

            
              FX_BOOL StretchBitMask(const CFX_DIBSource* pBitmap,

            
                                     int left,

            
                                     int top,

            
                                     int dest_width,

            
                                     int dest_height,

            
                                     uint32_t color);

            
              FX_BOOL StretchBitMaskWithFlags(const CFX_DIBSource* pBitmap,

            
                                              int left,

            
                                              int top,

            
                                              int dest_width,

            
                                              int dest_height,

            
                                              uint32_t color,

            
                                              uint32_t flags);

            
              FX_BOOL StartDIBits(const CFX_DIBSource* pBitmap,

            
                                  int bitmap_alpha,

            
                                  uint32_t color,

            
                                  const CFX_Matrix* pMatrix,

            
                                  uint32_t flags,

            
                                  void*& handle) {

            
                return StartDIBitsWithBlend(pBitmap, bitmap_alpha, color, pMatrix, flags,

            
                                            handle, FXDIB_BLEND_NORMAL);

            
              }

            
              FX_BOOL StartDIBitsWithBlend(const CFX_DIBSource* pBitmap,

            
                                           int bitmap_alpha,

            
                                           uint32_t color,

            
                                           const CFX_Matrix* pMatrix,

            
                                           uint32_t flags,

            
                                           void*& handle,

            
                                           int blend_type);

            
              FX_BOOL ContinueDIBits(void* handle, IFX_Pause* pPause);

            
              void CancelDIBits(void* handle);


              FX_BOOL DrawNormalText(int nChars,

            
                                     const FXTEXT_CHARPOS* pCharPos,

            
                                     CFX_Font* pFont,

            
                                     CFX_FontCache* pCache,

            
                                     FX_FLOAT font_size,

            
                                     const CFX_Matrix* pText2Device,

            
                                     uint32_t fill_color,

            
                                     uint32_t text_flags);

            
              FX_BOOL DrawTextPath(int nChars,

            
                                            const FXTEXT_CHARPOS* pCharPos,

            
                                            CFX_Font* pFont,

            
                                            CFX_FontCache* pCache,

            
                                            FX_FLOAT font_size,

            
                                            const CFX_Matrix* pText2User,

            
                                            const CFX_Matrix* pUser2Device,

            
                                            const CFX_GraphStateData* pGraphState,

            
                                            uint32_t fill_color,

            
                                            uint32_t stroke_color,

            
                                            CFX_PathData* pClippingPath,

            
                                            int nFlag);


            #ifdef _SKIA_SUPPORT_

            
              virtual void DebugVerifyBitmapIsPreMultiplied() const;

            
              virtual bool SetBitsWithMask(const CFX_DIBSource* pBitmap,

            
                                           const CFX_DIBSource* pMask,

            
                                           int left,

            
                                           int top,

            
                                           int bitmap_alpha,

            
                                           int blend_type);

            
              void Flush();

            
            #endif


             private:

            
              void InitDeviceInfo();

            
              void UpdateClipBox();

            
              FX_BOOL DrawFillStrokePath(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);


              CFX_DIBitmap* m_pBitmap;

            
              int m_Width;

            
              int m_Height;

            
              int m_bpp;

            
              int m_RenderCaps;

            
              int m_DeviceClass;

            
              FX_RECT m_ClipBox;

            
              std::unique_ptr<IFX_RenderDeviceDriver> m_pDeviceDriver;

            
            };


            #endif  // CORE_FXGE_INCLUDE_CFX_RENDERDEVICE_H_
	// 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_INCLUDE_CFX_RENDERDEVICE_H_
	#define CORE_FXGE_INCLUDE_CFX_RENDERDEVICE_H_

	#include <memory>

	#include "core/fxge/include/cfx_gemodule.h"
	#include "core/fxge/include/fx_dib.h"
	#include "core/fxge/include/fx_font.h"

	class CFX_Font;
	class CFX_FontCache;
	class CFX_GraphStateData;
	class IFX_RenderDeviceDriver;

	#define FXDC_DEVICE_CLASS 1
	#define FXDC_PIXEL_WIDTH 2
	#define FXDC_PIXEL_HEIGHT 3
	#define FXDC_BITS_PIXEL 4
	#define FXDC_HORZ_SIZE 5
	#define FXDC_VERT_SIZE 6
	#define FXDC_RENDER_CAPS 7
	#define FXDC_DISPLAY 1
	#define FXDC_PRINTER 2

	#define FXPT_CLOSEFIGURE 0x01
	#define FXPT_LINETO 0x02
	#define FXPT_BEZIERTO 0x04
	#define FXPT_MOVETO 0x06
	#define FXPT_TYPE 0x06

	#define FXRC_GET_BITS 0x01
	#define FXRC_BIT_MASK 0x02
	#define FXRC_ALPHA_MASK 0x04
	#define FXRC_ALPHA_PATH 0x10
	#define FXRC_ALPHA_IMAGE 0x20
	#define FXRC_ALPHA_OUTPUT 0x40
	#define FXRC_BLEND_MODE 0x80
	#define FXRC_SOFT_CLIP 0x100
	#define FXRC_CMYK_OUTPUT 0x200
	#define FXRC_BITMASK_OUTPUT 0x400
	#define FXRC_BYTEMASK_OUTPUT 0x800
	#define FXRENDER_IMAGE_LOSSY 0x1000
	#define FXRC_FILLSTROKE_PATH 0x2000
	#define FXRC_SHADING 0x4000

	#define FXFILL_ALTERNATE 1
	#define FXFILL_WINDING 2
	#define FXFILL_FULLCOVER 4
	#define FXFILL_RECT_AA 8
	#define FX_FILL_STROKE 16
	#define FX_STROKE_ADJUST 32
	#define FX_STROKE_TEXT_MODE 64
	#define FX_FILL_TEXT_MODE 128
	#define FX_ZEROAREA_FILL 256
	#define FXFILL_NOPATHSMOOTH 512

	#define FXTEXT_CLEARTYPE 0x01
	#define FXTEXT_BGR_STRIPE 0x02
	#define FXTEXT_PRINTGRAPHICTEXT 0x04
	#define FXTEXT_NO_NATIVETEXT 0x08
	#define FXTEXT_PRINTIMAGETEXT 0x10
	#define FXTEXT_NOSMOOTH 0x20

	struct FXTEXT_CHARPOS {
	FX_FLOAT m_AdjustMatrix[4];
	FX_FLOAT m_OriginX;
	FX_FLOAT m_OriginY;
	uint32_t m_GlyphIndex;
	int32_t m_FontCharWidth;
	#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
	uint32_t m_ExtGID;
	#endif
	int32_t m_FallbackFontPosition;
	bool m_bGlyphAdjust;
	bool m_bFontStyle;
	};

	class CFX_RenderDevice {
	public:
	CFX_RenderDevice();
	virtual ~CFX_RenderDevice();

	// Take ownership of \|pDriver\|.
	void SetDeviceDriver(std::unique_ptr<IFX_RenderDeviceDriver> pDriver);
	IFX_RenderDeviceDriver* GetDeviceDriver() const {
	return m_pDeviceDriver.get();
	}

	void SaveState();
	void RestoreState(bool bKeepSaved);

	int GetWidth() const { return m_Width; }
	int GetHeight() const { return m_Height; }
	int GetDeviceClass() const { return m_DeviceClass; }
	int GetRenderCaps() const { return m_RenderCaps; }
	int GetDeviceCaps(int id) const;
	CFX_Matrix GetCTM() const;
	CFX_DIBitmap* GetBitmap() const { return m_pBitmap; }
	void SetBitmap(CFX_DIBitmap* pBitmap) { m_pBitmap = pBitmap; }
	FX_BOOL CreateCompatibleBitmap(CFX_DIBitmap* pDIB,
	int width,
	int height) const;
	const FX_RECT& GetClipBox() const { return m_ClipBox; }
	FX_BOOL SetClip_PathFill(const CFX_PathData* pPathData,
	const CFX_Matrix* pObject2Device,
	int fill_mode);
	FX_BOOL SetClip_Rect(const FX_RECT& pRect);
	FX_BOOL SetClip_PathStroke(const CFX_PathData* pPathData,
	const CFX_Matrix* pObject2Device,
	const CFX_GraphStateData* pGraphState);
	FX_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) {
	return DrawPathWithBlend(pPathData, pObject2Device, pGraphState, fill_color,
	stroke_color, fill_mode, FXDIB_BLEND_NORMAL);
	}
	FX_BOOL DrawPathWithBlend(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);
	FX_BOOL SetPixel(int x, int y, uint32_t color);
	FX_BOOL FillRect(const FX_RECT* pRect, uint32_t color) {
	return FillRectWithBlend(pRect, color, FXDIB_BLEND_NORMAL);
	}
	FX_BOOL FillRectWithBlend(const FX_RECT* pRect,
	uint32_t color,
	int blend_type);
	FX_BOOL DrawCosmeticLine(FX_FLOAT x1,
	FX_FLOAT y1,
	FX_FLOAT x2,
	FX_FLOAT y2,
	uint32_t color,
	int fill_mode,
	int blend_type);

	FX_BOOL GetDIBits(CFX_DIBitmap* pBitmap, int left, int top);
	CFX_DIBitmap* GetBackDrop();
	FX_BOOL SetDIBits(const CFX_DIBSource* pBitmap, int left, int top) {
	return SetDIBitsWithBlend(pBitmap, left, top, FXDIB_BLEND_NORMAL);
	}
	FX_BOOL SetDIBitsWithBlend(const CFX_DIBSource* pBitmap,
	int left,
	int top,
	int blend_type);
	FX_BOOL StretchDIBits(const CFX_DIBSource* pBitmap,
	int left,
	int top,
	int dest_width,
	int dest_height) {
	return StretchDIBitsWithFlagsAndBlend(pBitmap, left, top, dest_width,
	dest_height, 0, FXDIB_BLEND_NORMAL);
	}
	FX_BOOL StretchDIBitsWithFlagsAndBlend(const CFX_DIBSource* pBitmap,
	int left,
	int top,
	int dest_width,
	int dest_height,
	uint32_t flags,
	int blend_type);
	FX_BOOL SetBitMask(const CFX_DIBSource* pBitmap,
	int left,
	int top,
	uint32_t color);
	FX_BOOL StretchBitMask(const CFX_DIBSource* pBitmap,
	int left,
	int top,
	int dest_width,
	int dest_height,
	uint32_t color);
	FX_BOOL StretchBitMaskWithFlags(const CFX_DIBSource* pBitmap,
	int left,
	int top,
	int dest_width,
	int dest_height,
	uint32_t color,
	uint32_t flags);
	FX_BOOL StartDIBits(const CFX_DIBSource* pBitmap,
	int bitmap_alpha,
	uint32_t color,
	const CFX_Matrix* pMatrix,
	uint32_t flags,
	void*& handle) {
	return StartDIBitsWithBlend(pBitmap, bitmap_alpha, color, pMatrix, flags,
	handle, FXDIB_BLEND_NORMAL);
	}
	FX_BOOL StartDIBitsWithBlend(const CFX_DIBSource* pBitmap,
	int bitmap_alpha,
	uint32_t color,
	const CFX_Matrix* pMatrix,
	uint32_t flags,
	void*& handle,
	int blend_type);
	FX_BOOL ContinueDIBits(void* handle, IFX_Pause* pPause);
	void CancelDIBits(void* handle);

	FX_BOOL DrawNormalText(int nChars,
	const FXTEXT_CHARPOS* pCharPos,
	CFX_Font* pFont,
	CFX_FontCache* pCache,
	FX_FLOAT font_size,
	const CFX_Matrix* pText2Device,
	uint32_t fill_color,
	uint32_t text_flags);
	FX_BOOL DrawTextPath(int nChars,
	const FXTEXT_CHARPOS* pCharPos,
	CFX_Font* pFont,
	CFX_FontCache* pCache,
	FX_FLOAT font_size,
	const CFX_Matrix* pText2User,
	const CFX_Matrix* pUser2Device,
	const CFX_GraphStateData* pGraphState,
	uint32_t fill_color,
	uint32_t stroke_color,
	CFX_PathData* pClippingPath,
	int nFlag);

	#ifdef _SKIA_SUPPORT_
	virtual void DebugVerifyBitmapIsPreMultiplied() const;
	virtual bool SetBitsWithMask(const CFX_DIBSource* pBitmap,
	const CFX_DIBSource* pMask,
	int left,
	int top,
	int bitmap_alpha,
	int blend_type);
	void Flush();
	#endif

	private:
	void InitDeviceInfo();
	void UpdateClipBox();
	FX_BOOL DrawFillStrokePath(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);

	CFX_DIBitmap* m_pBitmap;
	int m_Width;
	int m_Height;
	int m_bpp;
	int m_RenderCaps;
	int m_DeviceClass;
	FX_RECT m_ClipBox;
	std::unique_ptr<IFX_RenderDeviceDriver> m_pDeviceDriver;
	};

	#endif // CORE_FXGE_INCLUDE_CFX_RENDERDEVICE_H_