core/src/fxge/skia/fx_skia_device.h

   1 // Copyright 2014 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 #ifndef CORE_SRC_FXGE_SKIA_FX_SKIA_DEVICE_H_
   6 #define CORE_SRC_FXGE_SKIA_FX_SKIA_DEVICE_H_
   7
   8 #if defined(_SKIA_SUPPORT_)
   9 class CFX_SkiaDeviceDriver : public IFX_RenderDeviceDriver
  10 {
  11 public:
  12         CFX_SkiaDeviceDriver(CFX_DIBitmap* pBitmap, int dither_bits, FX_BOOL bRgbByteOrder, CFX_DIBitmap* pOriDevice, FX_BOOL bGroupKnockout);
  13         virtual ~CFX_SkiaDeviceDriver();
  14
  15         /** Options */
  16         virtual int                     GetDeviceCaps(int caps_id);
  17
  18         /** Save and restore all graphic states */
  19         virtual void            SaveState();
  20         virtual void            RestoreState(FX_BOOL bKeepSaved);
  21
  22         /** Set clipping path using filled region */
  23         virtual FX_BOOL         SetClip_PathFill(const CFX_PathData* pPathData, // path info
  24                                                         const CFX_AffineMatrix* pObject2Device, // optional transformation
  25                                                         int fill_mode   // fill mode, WINDING or ALTERNATE
  26                                                         );
  27
  28         /** Set clipping path using stroked region */
  29         virtual FX_BOOL         SetClip_PathStroke(const CFX_PathData* pPathData,       // path info
  30                                                         const CFX_AffineMatrix* pObject2Device, // optional transformation
  31                                                         const CFX_GraphStateData* pGraphState   // graphic state, for pen attributes
  32                                                         );
  33
  34         /** Draw a path */
  35         virtual FX_BOOL         DrawPath(const CFX_PathData* pPathData,
  36                                                 const CFX_AffineMatrix* pObject2Device,
  37                                                 const CFX_GraphStateData* pGraphState,
  38                                                 FX_DWORD fill_color,
  39                                                 FX_DWORD stroke_color,
  40                                                 int fill_mode,
  41                                                 int alpha_flag = 0,
  42                                                 void* pIccTransform = NULL
  43                                                         );
  44
  45         virtual FX_BOOL         SetPixel(int x, int y, FX_DWORD color,
  46                                                 int alpha_flag = 0, void* pIccTransform = NULL);
  47
  48         virtual FX_BOOL         FillRect(const FX_RECT* pRect, FX_DWORD fill_color,
  49                                                 int alpha_flag = 0, void* pIccTransform = NULL);
  50
  51         /** Draw a single pixel (device dependant) line */
  52         virtual FX_BOOL         DrawCosmeticLine(FX_FIXFLOAT x1, FX_FIXFLOAT y1, FX_FIXFLOAT x2, FX_FIXFLOAT y2, FX_DWORD color,
  53                                                         int alpha_flag, void* pIccTransform, int blend_type) { return FALSE; }
  54
  55         virtual FX_BOOL         GetClipBox(FX_RECT* pRect);
  56
  57         /** Load device buffer into a DIB */
  58         virtual FX_BOOL         GetDIBits(CFX_DIBitmap* pBitmap, int left, int top, void* pIccTransform = NULL, FX_BOOL bDEdge = FALSE);
  59
  60         virtual CFX_DIBitmap*   GetBackDrop() { return m_pAggDriver->GetBackDrop(); }
  61
  62         virtual FX_BOOL         SetDIBits(const CFX_DIBSource* pBitmap, FX_DWORD color, const FX_RECT* pSrcRect,
  63                                                 int dest_left, int dest_top, int blend_type,
  64                                                 int alpha_flag = 0, void* pIccTransform = NULL);
  65         virtual FX_BOOL         StretchDIBits(const CFX_DIBSource* pBitmap, FX_DWORD color, int dest_left, int dest_top,
  66                                 int dest_width, int dest_height, const FX_RECT* pClipRect, FX_DWORD flags,
  67                                 int alpha_flag = 0, void* pIccTransform = NULL);
  68
  69         virtual FX_BOOL         StartDIBits(const CFX_DIBSource* pBitmap, int bitmap_alpha, FX_DWORD color,
  70                                 const CFX_AffineMatrix* pMatrix, FX_DWORD flags, void*& handle,
  71                                 int alpha_flag = 0, void* pIccTransform = NULL);
  72         virtual FX_BOOL         ContinueDIBits(void* handle, IFX_Pause* pPause);
  73         virtual void            CancelDIBits(void* handle);
  74
  75         virtual FX_BOOL     DrawDeviceText(int nChars, const FXTEXT_CHARPOS* pCharPos, CFX_Font* pFont,
  76                                                 CFX_FontCache* pCache, const CFX_AffineMatrix* pObject2Device, FX_FIXFLOAT font_size, FX_DWORD color,
  77                                                 int alpha_flag = 0, void* pIccTransform = NULL);
  78
  79         virtual FX_BOOL         RenderRasterizer(rasterizer_scanline_aa& rasterizer, FX_DWORD color, FX_BOOL bFullCover, FX_BOOL bGroupKnockout,
  80                                                         int alpha_flag, void* pIccTransform);
  81         virtual FX_BOOL         RenderRasterizerSkia(SkPath& skPath, const SkPaint& origPaint, SkIRect& rect, FX_DWORD color, FX_BOOL bFullCover, FX_BOOL bGroupKnockout,
  82                                                         int alpha_flag, void* pIccTransform, FX_BOOL bFill = TRUE);
  83         void                            SetClipMask(rasterizer_scanline_aa& rasterizer);
  84         void                            SetClipMask(SkPath& skPath, SkPaint* spaint);
  85         virtual uint8_t*        GetBuffer() const {return m_pAggDriver->GetBuffer();}
  86
  87         CFX_AggDeviceDriver* m_pAggDriver;
  88 };
  89 #endif  // defined(_SKIA_SUPPORT_)
  90
  91 #endif  // CORE_SRC_FXGE_SKIA_FX_SKIA_DEVICE_H_