// 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 #ifndef CORE_INCLUDE_FXGE_FX_GE_H_ #define CORE_INCLUDE_FXGE_FX_GE_H_ #include "fx_dib.h" #include "fx_font.h" class CFX_Font; class CFX_FontMgr; class CFX_FontCache; class CFX_FaceCache; class IFX_RenderDeviceDriver; class CCodec_ModuleMgr; class CFX_GEModule { public: static void Create(const char** pUserFontPaths); static void Use(CFX_GEModule* pMgr); static CFX_GEModule* Get(); static void Destroy(); public: CFX_FontCache* GetFontCache(); CFX_FontMgr* GetFontMgr() { return m_pFontMgr; } void SetTextGamma(FX_FLOAT gammaValue); const uint8_t* GetTextGammaTable(); void SetCodecModule(CCodec_ModuleMgr* pCodecModule) { m_pCodecModule = pCodecModule; } CCodec_ModuleMgr* GetCodecModule() { return m_pCodecModule; } FXFT_Library m_FTLibrary; void* GetPlatformData() { return m_pPlatformData; } protected: explicit CFX_GEModule(const char** pUserFontPaths); ~CFX_GEModule(); void InitPlatform(); void DestroyPlatform(); private: uint8_t m_GammaValue[256]; CFX_FontCache* m_pFontCache; CFX_FontMgr* m_pFontMgr; CCodec_ModuleMgr* m_pCodecModule; void* m_pPlatformData; const char** m_pUserFontPaths; }; typedef struct { FX_FLOAT m_PointX; FX_FLOAT m_PointY; int m_Flag; } FX_PATHPOINT; #define FXPT_CLOSEFIGURE 0x01 #define FXPT_LINETO 0x02 #define FXPT_BEZIERTO 0x04 #define FXPT_MOVETO 0x06 #define FXPT_TYPE 0x06 #define FXFILL_ALTERNATE 1 #define FXFILL_WINDING 2 class CFX_ClipRgn { public: CFX_ClipRgn(int device_width, int device_height); CFX_ClipRgn(const FX_RECT& rect); CFX_ClipRgn(const CFX_ClipRgn& src); ~CFX_ClipRgn(); typedef enum { RectI, MaskF } ClipType; void Reset(const FX_RECT& rect); ClipType GetType() const { return m_Type; } const FX_RECT& GetBox() const { return m_Box; } CFX_DIBitmapRef GetMask() const { return m_Mask; } void IntersectRect(const FX_RECT& rect); void IntersectMaskF(int left, int top, CFX_DIBitmapRef Mask); protected: ClipType m_Type; FX_RECT m_Box; CFX_DIBitmapRef m_Mask; void IntersectMaskRect(FX_RECT rect, FX_RECT mask_box, CFX_DIBitmapRef Mask); }; #define FX_GAMMA(value) (value) #define FX_GAMMA_INVERSE(value) (value) inline FX_ARGB ArgbGamma(FX_ARGB argb) { return argb; } inline FX_ARGB ArgbGammaInverse(FX_ARGB argb) { return argb; } class CFX_PathData { public: CFX_PathData(); CFX_PathData(const CFX_PathData& src); ~CFX_PathData(); int GetPointCount() const { return m_PointCount; } int GetFlag(int index) const { return m_pPoints[index].m_Flag; } FX_FLOAT GetPointX(int index) const { return m_pPoints[index].m_PointX; } FX_FLOAT GetPointY(int index) const { return m_pPoints[index].m_PointY; } FX_PATHPOINT* GetPoints() const { return m_pPoints; } void SetPointCount(int nPoints); void AllocPointCount(int nPoints); void AddPointCount(int addPoints); CFX_FloatRect GetBoundingBox() const; CFX_FloatRect GetBoundingBox(FX_FLOAT line_width, FX_FLOAT miter_limit) const; void Transform(const CFX_AffineMatrix* pMatrix); FX_BOOL IsRect() const; FX_BOOL GetZeroAreaPath(CFX_PathData& NewPath, CFX_AffineMatrix* pMatrix, FX_BOOL& bThin, FX_BOOL bAdjust) const; FX_BOOL IsRect(const CFX_AffineMatrix* pMatrix, CFX_FloatRect* rect) const; void Append(const CFX_PathData* pSrc, const CFX_AffineMatrix* pMatrix); void AppendRect(FX_FLOAT left, FX_FLOAT bottom, FX_FLOAT right, FX_FLOAT top); void SetPoint(int index, FX_FLOAT x, FX_FLOAT y, int flag); void TrimPoints(int nPoints); void Copy(const CFX_PathData& src); protected: friend class CPDF_Path; int m_PointCount; FX_PATHPOINT* m_pPoints; int m_AllocCount; }; class CFX_GraphStateData { public: CFX_GraphStateData(); CFX_GraphStateData(const CFX_GraphStateData& src); ~CFX_GraphStateData(); void Copy(const CFX_GraphStateData& src); void SetDashCount(int count); typedef enum { LineCapButt = 0, LineCapRound = 1, LineCapSquare = 2 } LineCap; LineCap m_LineCap; int m_DashCount; FX_FLOAT* m_DashArray; FX_FLOAT m_DashPhase; typedef enum { LineJoinMiter = 0, LineJoinRound = 1, LineJoinBevel = 2, } LineJoin; LineJoin m_LineJoin; FX_FLOAT m_MiterLimit; FX_FLOAT m_LineWidth; }; #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_DITHER_BITS 8 #define FXDC_DISPLAY 1 #define FXDC_PRINTER 2 #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 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 typedef struct { FX_DWORD m_GlyphIndex; FX_FLOAT m_OriginX, m_OriginY; int m_FontCharWidth; FX_BOOL m_bGlyphAdjust; FX_FLOAT m_AdjustMatrix[4]; FX_DWORD m_ExtGID; FX_BOOL m_bFontStyle; } FXTEXT_CHARPOS; class CFX_RenderDevice { public: CFX_RenderDevice(); virtual ~CFX_RenderDevice(); void SetDeviceDriver(IFX_RenderDeviceDriver* pDriver); IFX_RenderDeviceDriver* GetDeviceDriver() const { return m_pDeviceDriver; } FX_BOOL StartRendering(); void EndRendering(); void SaveState(); void RestoreState(FX_BOOL bKeepSaved = FALSE); int GetWidth() const { return m_Width; } int GetHeight() const { return m_Height; } int GetDeviceClass() const { return m_DeviceClass; } int GetBPP() const { return m_bpp; } 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_AffineMatrix* pObject2Device, int fill_mode); FX_BOOL SetClip_Rect(const FX_RECT* pRect); FX_BOOL SetClip_PathStroke(const CFX_PathData* pPathData, const CFX_AffineMatrix* pObject2Device, const CFX_GraphStateData* pGraphState); FX_BOOL DrawPath(const CFX_PathData* pPathData, const CFX_AffineMatrix* pObject2Device, const CFX_GraphStateData* pGraphState, FX_DWORD fill_color, FX_DWORD stroke_color, int fill_mode, int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL); FX_BOOL SetPixel(int x, int y, FX_DWORD color, int alpha_flag = 0, void* pIccTransform = NULL); FX_BOOL FillRect(const FX_RECT* pRect, FX_DWORD color, int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL); FX_BOOL DrawCosmeticLine(FX_FLOAT x1, FX_FLOAT y1, FX_FLOAT x2, FX_FLOAT y2, FX_DWORD color, int fill_mode = 0, int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL); FX_BOOL GetDIBits(CFX_DIBitmap* pBitmap, int left, int top, void* pIccTransform = NULL); CFX_DIBitmap* GetBackDrop(); FX_BOOL SetDIBits(const CFX_DIBSource* pBitmap, int left, int top, int blend_type = FXDIB_BLEND_NORMAL, void* pIccTransform = NULL); FX_BOOL StretchDIBits(const CFX_DIBSource* pBitmap, int left, int top, int dest_width, int dest_height, FX_DWORD flags = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL); FX_BOOL SetBitMask(const CFX_DIBSource* pBitmap, int left, int top, FX_DWORD color, int alpha_flag = 0, void* pIccTransform = NULL); FX_BOOL StretchBitMask(const CFX_DIBSource* pBitmap, int left, int top, int dest_width, int dest_height, FX_DWORD color, FX_DWORD flags = 0, int alpha_flag = 0, void* pIccTransform = NULL); FX_BOOL StartDIBits(const CFX_DIBSource* pBitmap, int bitmap_alpha, FX_DWORD color, const CFX_AffineMatrix* pMatrix, FX_DWORD flags, void*& handle, int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL); 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_AffineMatrix* pText2Device, FX_DWORD fill_color, FX_DWORD text_flags, int alpha_flag = 0, void* pIccTransform = NULL); FX_BOOL DrawTextPath(int nChars, const FXTEXT_CHARPOS* pCharPos, CFX_Font* pFont, CFX_FontCache* pCache, FX_FLOAT font_size, const CFX_AffineMatrix* pText2User, const CFX_AffineMatrix* pUser2Device, const CFX_GraphStateData* pGraphState, FX_DWORD fill_color, FX_DWORD stroke_color, CFX_PathData* pClippingPath, int nFlag = 0, int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL); virtual void Begin() {} virtual void End() {} private: CFX_DIBitmap* m_pBitmap; int m_Width; int m_Height; int m_bpp; int m_RenderCaps; int m_DeviceClass; FX_RECT m_ClipBox; protected: IFX_RenderDeviceDriver* m_pDeviceDriver; private: void InitDeviceInfo(); void UpdateClipBox(); }; class CFX_FxgeDevice : public CFX_RenderDevice { public: CFX_FxgeDevice(); ~CFX_FxgeDevice() override; FX_BOOL Attach(CFX_DIBitmap* pBitmap, int dither_bits = 0, FX_BOOL bRgbByteOrder = FALSE, CFX_DIBitmap* pOriDevice = NULL, FX_BOOL bGroupKnockout = FALSE); FX_BOOL Create(int width, int height, FXDIB_Format format, int dither_bits = 0, CFX_DIBitmap* pOriDevice = NULL); protected: FX_BOOL m_bOwnedBitmap; }; class CFX_SkiaDevice : public CFX_RenderDevice { public: CFX_SkiaDevice(); ~CFX_SkiaDevice() override; FX_BOOL Attach(CFX_DIBitmap* pBitmap, int dither_bits = 0, FX_BOOL bRgbByteOrder = FALSE, CFX_DIBitmap* pOriDevice = NULL, FX_BOOL bGroupKnockout = FALSE); FX_BOOL Create(int width, int height, FXDIB_Format format, int dither_bits = 0, CFX_DIBitmap* pOriDevice = NULL); protected: FX_BOOL m_bOwnedBitmap; }; class IFX_RenderDeviceDriver { public: static IFX_RenderDeviceDriver* CreateFxgeDriver( CFX_DIBitmap* pBitmap, FX_BOOL bRgbByteOrder = FALSE, CFX_DIBitmap* pOriDevice = NULL, FX_BOOL bGroupKnockout = FALSE); virtual ~IFX_RenderDeviceDriver() {} virtual void Begin() {} virtual void End() {} virtual int GetDeviceCaps(int caps_id) = 0; virtual CFX_Matrix GetCTM() const { return CFX_Matrix(); } virtual FX_BOOL IsPSPrintDriver() { return FALSE; } virtual FX_BOOL StartRendering() { return TRUE; } virtual void EndRendering() {} virtual void SaveState() = 0; virtual void RestoreState(FX_BOOL bKeepSaved = FALSE) = 0; virtual FX_BOOL SetClip_PathFill(const CFX_PathData* pPathData, const CFX_AffineMatrix* pObject2Device, int fill_mode) = 0; virtual FX_BOOL SetClip_PathStroke(const CFX_PathData* pPathData, const CFX_AffineMatrix* pObject2Device, const CFX_GraphStateData* pGraphState) { return FALSE; } virtual FX_BOOL DrawPath(const CFX_PathData* pPathData, const CFX_AffineMatrix* pObject2Device, const CFX_GraphStateData* pGraphState, FX_DWORD fill_color, FX_DWORD stroke_color, int fill_mode, int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL) = 0; virtual FX_BOOL SetPixel(int x, int y, FX_DWORD color, int alpha_flag = 0, void* pIccTransform = NULL) { return FALSE; } virtual FX_BOOL FillRect(const FX_RECT* pRect, FX_DWORD fill_color, int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL) { return FALSE; } virtual FX_BOOL DrawCosmeticLine(FX_FLOAT x1, FX_FLOAT y1, FX_FLOAT x2, FX_FLOAT y2, FX_DWORD color, int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL) { return FALSE; } virtual FX_BOOL GetClipBox(FX_RECT* pRect) = 0; virtual FX_BOOL GetDIBits(CFX_DIBitmap* pBitmap, int left, int top, void* pIccTransform = NULL, FX_BOOL bDEdge = FALSE) { return FALSE; } virtual CFX_DIBitmap* GetBackDrop() { return NULL; } virtual FX_BOOL SetDIBits(const CFX_DIBSource* pBitmap, FX_DWORD color, const FX_RECT* pSrcRect, int dest_left, int dest_top, int blend_type, int alpha_flag = 0, void* pIccTransform = NULL) = 0; virtual FX_BOOL StretchDIBits(const CFX_DIBSource* pBitmap, FX_DWORD color, int dest_left, int dest_top, int dest_width, int dest_height, const FX_RECT* pClipRect, FX_DWORD flags, int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL) = 0; virtual FX_BOOL StartDIBits(const CFX_DIBSource* pBitmap, int bitmap_alpha, FX_DWORD color, const CFX_AffineMatrix* pMatrix, FX_DWORD flags, void*& handle, int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL) = 0; virtual FX_BOOL ContinueDIBits(void* handle, IFX_Pause* pPause) { return FALSE; } virtual void CancelDIBits(void* handle) {} virtual FX_BOOL DrawDeviceText(int nChars, const FXTEXT_CHARPOS* pCharPos, CFX_Font* pFont, CFX_FontCache* pCache, const CFX_AffineMatrix* pObject2Device, FX_FLOAT font_size, FX_DWORD color, int alpha_flag = 0, void* pIccTransform = NULL) { return FALSE; } virtual void* GetPlatformSurface() { return NULL; } virtual int GetDriverType() { return 0; } virtual void ClearDriver() {} }; class IFX_PSOutput { public: virtual void Release() = 0; virtual void OutputPS(const FX_CHAR* string, int len) = 0; protected: virtual ~IFX_PSOutput() {} }; class CPSFont; class CFX_PSRenderer { public: CFX_PSRenderer(); ~CFX_PSRenderer(); void Init(IFX_PSOutput* pOutput, int ps_level, int width, int height, FX_BOOL bCmykOutput); FX_BOOL StartRendering(); void EndRendering(); void SaveState(); void RestoreState(FX_BOOL bKeepSaved = FALSE); void SetClip_PathFill(const CFX_PathData* pPathData, const CFX_AffineMatrix* pObject2Device, int fill_mode); void SetClip_PathStroke(const CFX_PathData* pPathData, const CFX_AffineMatrix* pObject2Device, const CFX_GraphStateData* pGraphState); FX_RECT GetClipBox() { return m_ClipBox; } FX_BOOL DrawPath(const CFX_PathData* pPathData, const CFX_AffineMatrix* pObject2Device, const CFX_GraphStateData* pGraphState, FX_DWORD fill_color, FX_DWORD stroke_color, int fill_mode, int alpha_flag = 0, void* pIccTransform = NULL); FX_BOOL SetDIBits(const CFX_DIBSource* pBitmap, FX_DWORD color, int dest_left, int dest_top, int alpha_flag = 0, void* pIccTransform = NULL); FX_BOOL StretchDIBits(const CFX_DIBSource* pBitmap, FX_DWORD color, int dest_left, int dest_top, int dest_width, int dest_height, FX_DWORD flags, int alpha_flag = 0, void* pIccTransform = NULL); FX_BOOL DrawDIBits(const CFX_DIBSource* pBitmap, FX_DWORD color, const CFX_AffineMatrix* pMatrix, FX_DWORD flags, int alpha_flag = 0, void* pIccTransform = NULL); FX_BOOL DrawText(int nChars, const FXTEXT_CHARPOS* pCharPos, CFX_Font* pFont, CFX_FontCache* pCache, const CFX_AffineMatrix* pObject2Device, FX_FLOAT font_size, FX_DWORD color, int alpha_flag = 0, void* pIccTransform = NULL); private: IFX_PSOutput* m_pOutput; int m_PSLevel; CFX_GraphStateData m_CurGraphState; FX_BOOL m_bGraphStateSet; FX_BOOL m_bCmykOutput; FX_BOOL m_bColorSet; FX_DWORD m_LastColor; FX_RECT m_ClipBox; CFX_ArrayTemplate<CPSFont*> m_PSFontList; CFX_ArrayTemplate<FX_RECT> m_ClipBoxStack; FX_BOOL m_bInited; void OutputPath(const CFX_PathData* pPathData, const CFX_AffineMatrix* pObject2Device); void SetGraphState(const CFX_GraphStateData* pGraphState); void SetColor(FX_DWORD color, int alpha_flag, void* pIccTransform); void FindPSFontGlyph(CFX_FaceCache* pFaceCache, CFX_Font* pFont, const FXTEXT_CHARPOS& charpos, int& ps_fontnum, int& ps_glyphindex); void WritePSBinary(const uint8_t* data, int len); }; #endif // CORE_INCLUDE_FXGE_FX_GE_H_