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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.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef _FX_GE_H_
#define _FX_GE_H_
#ifndef _FX_DIB_H_
#include "fx_dib.h"
#endif
#ifndef _FX_FONT_H_
#include "fx_font.h"
#endif
class CFX_ClipRgn;
class CFX_PathData;
class CFX_GraphStateData;
class CFX_Font;
class CFX_FontMgr;
class CFX_FontCache;
class CFX_FaceCache;
class CFX_RenderDevice;
class IFX_RenderDeviceDriver;
class CCodec_ModuleMgr;
class IFXG_PaintModuleMgr;
class CFX_GEModule
{
public:
static void Create();
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);
FX_LPCBYTE GetTextGammaTable();
void SetExtFontMapper(IFX_FontMapper* pFontMapper);
void SetCodecModule(CCodec_ModuleMgr* pCodecModule)
{
m_pCodecModule = pCodecModule;
}
CCodec_ModuleMgr* GetCodecModule()
{
return m_pCodecModule;
}
FXFT_Library m_FTLibrary;
void* GetPlatformData()
{
return m_pPlatformData;
}
protected:
CFX_GEModule();
~CFX_GEModule();
void InitPlatform();
void DestroyPlatform();
private:
FX_BYTE m_GammaValue[256];
CFX_FontCache* m_pFontCache;
CFX_FontMgr* m_pFontMgr;
CCodec_ModuleMgr* m_pCodecModule;
void* m_pPlatformData;
};
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);
};
extern const FX_BYTE g_GammaRamp[256];
extern const FX_BYTE g_GammaInverse[256];
#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;
}
FX_BOOL SetPointCount(int nPoints);
FX_BOOL AllocPointCount(int nPoints);
FX_BOOL 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;
FX_BOOL Append(const CFX_PathData* pSrc, const CFX_AffineMatrix* pMatrix);
FX_BOOL 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);
FX_BOOL 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, FX_LPVOID& handle,
int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL);
FX_BOOL ContinueDIBits(FX_LPVOID handle, IFX_Pause* pPause);
void CancelDIBits(FX_LPVOID 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();
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();
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, FX_LPVOID& handle,
int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL) = 0;
virtual FX_BOOL ContinueDIBits(FX_LPVOID handle, IFX_Pause* pPause)
{
return FALSE;
}
virtual void CancelDIBits(FX_LPVOID 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(FX_LPCSTR string, int len) = 0;
protected:
~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(FX_LPCBYTE data, int len);
};
#endif