1 // Copyright 2016 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef CORE_FXGE_CFX_RENDERDEVICE_H_ 8 #define CORE_FXGE_CFX_RENDERDEVICE_H_ 9 10 #include <memory> 11 12 #include "core/fxge/cfx_gemodule.h" 13 #include "core/fxge/fx_dib.h" 14 #include "core/fxge/fx_font.h" 15 16 class CFX_Font; 17 class CFX_GraphStateData; 18 class IFX_RenderDeviceDriver; 19 20 #define FXDC_DEVICE_CLASS 1 21 #define FXDC_PIXEL_WIDTH 2 22 #define FXDC_PIXEL_HEIGHT 3 23 #define FXDC_BITS_PIXEL 4 24 #define FXDC_HORZ_SIZE 5 25 #define FXDC_VERT_SIZE 6 26 #define FXDC_RENDER_CAPS 7 27 #define FXDC_DISPLAY 1 28 #define FXDC_PRINTER 2 29 30 #define FXRC_GET_BITS 0x01 31 #define FXRC_BIT_MASK 0x02 32 #define FXRC_ALPHA_MASK 0x04 33 #define FXRC_ALPHA_PATH 0x10 34 #define FXRC_ALPHA_IMAGE 0x20 35 #define FXRC_ALPHA_OUTPUT 0x40 36 #define FXRC_BLEND_MODE 0x80 37 #define FXRC_SOFT_CLIP 0x100 38 #define FXRC_CMYK_OUTPUT 0x200 39 #define FXRC_BITMASK_OUTPUT 0x400 40 #define FXRC_BYTEMASK_OUTPUT 0x800 41 #define FXRENDER_IMAGE_LOSSY 0x1000 42 #define FXRC_FILLSTROKE_PATH 0x2000 43 #define FXRC_SHADING 0x4000 44 45 #define FXFILL_ALTERNATE 1 46 #define FXFILL_WINDING 2 47 #define FXFILL_FULLCOVER 4 48 #define FXFILL_RECT_AA 8 49 #define FX_FILL_STROKE 16 50 #define FX_STROKE_ADJUST 32 51 #define FX_STROKE_TEXT_MODE 64 52 #define FX_FILL_TEXT_MODE 128 53 #define FX_ZEROAREA_FILL 256 54 #define FXFILL_NOPATHSMOOTH 512 55 56 #define FXTEXT_CLEARTYPE 0x01 57 #define FXTEXT_BGR_STRIPE 0x02 58 #define FXTEXT_PRINTGRAPHICTEXT 0x04 59 #define FXTEXT_NO_NATIVETEXT 0x08 60 #define FXTEXT_PRINTIMAGETEXT 0x10 61 #define FXTEXT_NOSMOOTH 0x20 62 63 enum class FXPT_TYPE : uint8_t { LineTo, BezierTo, MoveTo }; 64 65 class FXTEXT_CHARPOS { 66 public: 67 FXTEXT_CHARPOS(); 68 FXTEXT_CHARPOS(const FXTEXT_CHARPOS&); 69 ~FXTEXT_CHARPOS(); 70 71 FX_FLOAT m_AdjustMatrix[4]; 72 CFX_PointF m_Origin; 73 uint32_t m_GlyphIndex; 74 int32_t m_FontCharWidth; 75 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ 76 uint32_t m_ExtGID; 77 #endif 78 int32_t m_FallbackFontPosition; 79 bool m_bGlyphAdjust; 80 bool m_bFontStyle; 81 }; 82 83 class CFX_RenderDevice { 84 public: 85 CFX_RenderDevice(); 86 virtual ~CFX_RenderDevice(); 87 88 // Take ownership of |pDriver|. 89 void SetDeviceDriver(std::unique_ptr<IFX_RenderDeviceDriver> pDriver); 90 IFX_RenderDeviceDriver* GetDeviceDriver() const { 91 return m_pDeviceDriver.get(); 92 } 93 94 void SaveState(); 95 void RestoreState(bool bKeepSaved); 96 97 int GetWidth() const { return m_Width; } 98 int GetHeight() const { return m_Height; } 99 int GetDeviceClass() const { return m_DeviceClass; } 100 int GetRenderCaps() const { return m_RenderCaps; } 101 int GetDeviceCaps(int id) const; 102 CFX_Matrix GetCTM() const; 103 CFX_DIBitmap* GetBitmap() const { return m_pBitmap; } 104 void SetBitmap(CFX_DIBitmap* pBitmap) { m_pBitmap = pBitmap; } 105 bool CreateCompatibleBitmap(CFX_DIBitmap* pDIB, int width, int height) const; 106 const FX_RECT& GetClipBox() const { return m_ClipBox; } 107 bool SetClip_PathFill(const CFX_PathData* pPathData, 108 const CFX_Matrix* pObject2Device, 109 int fill_mode); 110 bool SetClip_Rect(const FX_RECT& pRect); 111 bool SetClip_PathStroke(const CFX_PathData* pPathData, 112 const CFX_Matrix* pObject2Device, 113 const CFX_GraphStateData* pGraphState); 114 bool DrawPath(const CFX_PathData* pPathData, 115 const CFX_Matrix* pObject2Device, 116 const CFX_GraphStateData* pGraphState, 117 uint32_t fill_color, 118 uint32_t stroke_color, 119 int fill_mode) { 120 return DrawPathWithBlend(pPathData, pObject2Device, pGraphState, fill_color, 121 stroke_color, fill_mode, FXDIB_BLEND_NORMAL); 122 } 123 bool DrawPathWithBlend(const CFX_PathData* pPathData, 124 const CFX_Matrix* pObject2Device, 125 const CFX_GraphStateData* pGraphState, 126 uint32_t fill_color, 127 uint32_t stroke_color, 128 int fill_mode, 129 int blend_type); 130 bool SetPixel(int x, int y, uint32_t color); 131 bool FillRect(const FX_RECT* pRect, uint32_t color) { 132 return FillRectWithBlend(pRect, color, FXDIB_BLEND_NORMAL); 133 } 134 bool FillRectWithBlend(const FX_RECT* pRect, uint32_t color, int blend_type); 135 bool DrawCosmeticLine(FX_FLOAT x1, 136 FX_FLOAT y1, 137 FX_FLOAT x2, 138 FX_FLOAT y2, 139 uint32_t color, 140 int fill_mode, 141 int blend_type); 142 143 bool GetDIBits(CFX_DIBitmap* pBitmap, int left, int top); 144 CFX_DIBitmap* GetBackDrop(); 145 bool SetDIBits(const CFX_DIBSource* pBitmap, int left, int top) { 146 return SetDIBitsWithBlend(pBitmap, left, top, FXDIB_BLEND_NORMAL); 147 } 148 bool SetDIBitsWithBlend(const CFX_DIBSource* pBitmap, 149 int left, 150 int top, 151 int blend_type); 152 bool StretchDIBits(const CFX_DIBSource* pBitmap, 153 int left, 154 int top, 155 int dest_width, 156 int dest_height) { 157 return StretchDIBitsWithFlagsAndBlend(pBitmap, left, top, dest_width, 158 dest_height, 0, FXDIB_BLEND_NORMAL); 159 } 160 bool StretchDIBitsWithFlagsAndBlend(const CFX_DIBSource* pBitmap, 161 int left, 162 int top, 163 int dest_width, 164 int dest_height, 165 uint32_t flags, 166 int blend_type); 167 bool SetBitMask(const CFX_DIBSource* pBitmap, 168 int left, 169 int top, 170 uint32_t color); 171 bool StretchBitMask(const CFX_DIBSource* pBitmap, 172 int left, 173 int top, 174 int dest_width, 175 int dest_height, 176 uint32_t color); 177 bool StretchBitMaskWithFlags(const CFX_DIBSource* pBitmap, 178 int left, 179 int top, 180 int dest_width, 181 int dest_height, 182 uint32_t color, 183 uint32_t flags); 184 bool StartDIBits(const CFX_DIBSource* pBitmap, 185 int bitmap_alpha, 186 uint32_t color, 187 const CFX_Matrix* pMatrix, 188 uint32_t flags, 189 void*& handle) { 190 return StartDIBitsWithBlend(pBitmap, bitmap_alpha, color, pMatrix, flags, 191 handle, FXDIB_BLEND_NORMAL); 192 } 193 bool StartDIBitsWithBlend(const CFX_DIBSource* pBitmap, 194 int bitmap_alpha, 195 uint32_t color, 196 const CFX_Matrix* pMatrix, 197 uint32_t flags, 198 void*& handle, 199 int blend_type); 200 bool ContinueDIBits(void* handle, IFX_Pause* pPause); 201 void CancelDIBits(void* handle); 202 203 bool DrawNormalText(int nChars, 204 const FXTEXT_CHARPOS* pCharPos, 205 CFX_Font* pFont, 206 FX_FLOAT font_size, 207 const CFX_Matrix* pText2Device, 208 uint32_t fill_color, 209 uint32_t text_flags); 210 bool DrawTextPath(int nChars, 211 const FXTEXT_CHARPOS* pCharPos, 212 CFX_Font* pFont, 213 FX_FLOAT font_size, 214 const CFX_Matrix* pText2User, 215 const CFX_Matrix* pUser2Device, 216 const CFX_GraphStateData* pGraphState, 217 uint32_t fill_color, 218 uint32_t stroke_color, 219 CFX_PathData* pClippingPath, 220 int nFlag); 221 222 #ifdef _SKIA_SUPPORT_ 223 virtual void DebugVerifyBitmapIsPreMultiplied() const; 224 virtual bool SetBitsWithMask(const CFX_DIBSource* pBitmap, 225 const CFX_DIBSource* pMask, 226 int left, 227 int top, 228 int bitmap_alpha, 229 int blend_type); 230 #endif 231 #if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ 232 void Flush(); 233 #endif 234 235 private: 236 void InitDeviceInfo(); 237 void UpdateClipBox(); 238 bool DrawFillStrokePath(const CFX_PathData* pPathData, 239 const CFX_Matrix* pObject2Device, 240 const CFX_GraphStateData* pGraphState, 241 uint32_t fill_color, 242 uint32_t stroke_color, 243 int fill_mode, 244 int blend_type); 245 246 CFX_DIBitmap* m_pBitmap; 247 int m_Width; 248 int m_Height; 249 int m_bpp; 250 int m_RenderCaps; 251 int m_DeviceClass; 252 FX_RECT m_ClipBox; 253 std::unique_ptr<IFX_RenderDeviceDriver> m_pDeviceDriver; 254 }; 255 256 #endif // CORE_FXGE_CFX_RENDERDEVICE_H_ 257
