introduce Props to surface

include/core/SkCanvas.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkCanvas_DEFINED
 #define SkCanvas_DEFINED
 
 #include "SkTypes.h"
 #include "SkBitmap.h"
 #include "SkDeque.h"
 #include "SkClipStack.h"
 #include "SkPaint.h"
 #include "SkRefCnt.h"
 #include "SkPath.h"
 #include "SkRegion.h"
+#include "SkSurfaceProps.h"
 #include "SkXfermode.h"
 
 #ifdef SK_SUPPORT_LEGACY_DRAWTEXT_VIRTUAL
     #define SK_LEGACY_DRAWTEXT_VIRTUAL  virtual
 #else
     #define SK_LEGACY_DRAWTEXT_VIRTUAL
 #endif
 
 class SkCanvasClipVisitor;
 class SkBaseDevice;
@@ skipping 164 matching lines @@
 #ifndef SK_SUPPORT_LEGACY_GETTOPDEVICE
 private:
 #endif
     SkBaseDevice* getTopDevice(bool updateMatrixClip = false) const;
 public:
 
     /**
      *  Create a new surface matching the specified info, one that attempts to
      *  be maximally compatible when used with this canvas. If there is no matching Surface type,
      *  NULL is returned.
+     *
+     *  If surfaceprops is specified, those are passed to the new surface, otherwise the new surface
+     *  inherits the properties of the surface that owns this canvas. If this canvas has no parent
+     *  surface, then the new surface is created with default properties.
      */
-    SkSurface* newSurface(const SkImageInfo&);
+    SkSurface* newSurface(const SkImageInfo&, const SkSurfaceProps* = NULL);
 
     /**
      * Return the GPU context of the device that is associated with the canvas.
      * For a canvas with non-GPU device, NULL is returned.
      */
     GrContext* getGrContext();
 
     ///////////////////////////////////////////////////////////////////////////
 
     /**
@@ skipping 970 matching lines @@
         class SkDrawIter* fImpl;    // this points at fStorage
         SkPaint           fDefaultPaint;
         bool              fDone;
     };
 
     // don't call
     GrRenderTarget* internal_private_accessTopLayerRenderTarget();
 
 protected:
     // default impl defers to getDevice()->newSurface(info)
-    virtual SkSurface* onNewSurface(const SkImageInfo&);
+    virtual SkSurface* onNewSurface(const SkImageInfo&, const SkSurfaceProps&);
 
     // default impl defers to its device
     virtual const void* onPeekPixels(SkImageInfo*, size_t* rowBytes);
     virtual void* onAccessTopLayerPixels(SkImageInfo*, size_t* rowBytes);
 
     // Subclass save/restore notifiers.
     // Overriders should call the corresponding INHERITED method up the inheritance chain.
     // willSaveLayer()'s return value may suppress full layer allocation.
     enum SaveLayerStrategy {
         kFullLayer_SaveLayerStrategy,
@@ skipping 69 matching lines @@
 private:
     class MCRec;
 
     SkClipStack fClipStack;
     SkDeque     fMCStack;
     // points to top of stack
     MCRec*      fMCRec;
     // the first N recs that can fit here mean we won't call malloc
     uint32_t    fMCRecStorage[32];
 
+    const SkSurfaceProps fProps;
+
     int         fSaveLayerCount;    // number of successful saveLayer calls
     int         fCullCount;         // number of active culls
 
     SkMetaData* fMetaData;
 
     SkSurface_Base*  fSurfaceBase;
     SkSurface_Base* getSurfaceBase() const { return fSurfaceBase; }
     void setSurfaceBase(SkSurface_Base* sb) {
         fSurfaceBase = sb;
     }
     friend class SkSurface_Base;
     friend class SkSurface_Gpu;
 
     bool fDeviceCMDirty;            // cleared by updateDeviceCMCache()
     void updateDeviceCMCache();
 
     friend class SkDrawIter;        // needs setupDrawForLayerDevice()
     friend class AutoDrawLooper;
     friend class SkLua;             // needs top layer size and offset
     friend class SkDebugCanvas;     // needs experimental fAllowSimplifyClip
     friend class SkDeferredDevice;  // needs getTopDevice()
     friend class SkSurface_Raster;  // needs getDevice()
     friend class SkRecorder;        // InitFlags
     friend class SkNoSaveLayerCanvas;   // InitFlags
     
     enum InitFlags {
         kDefault_InitFlags                  = 0,
         kConservativeRasterClip_InitFlag    = 1 << 0,
     };
-    SkCanvas(int width, int height, InitFlags flags);
-    SkCanvas(SkBaseDevice*, InitFlags flags);
+    SkCanvas(int width, int height, InitFlags);
+    SkCanvas(SkBaseDevice*, const SkSurfaceProps*, InitFlags);
+    SkCanvas(const SkBitmap&, const SkSurfaceProps&);
 
     // needs gettotalclip()
     friend SkCanvasState* SkCanvasStateUtils::CaptureCanvasState(SkCanvas*);
     
     SkBaseDevice* createLayerDevice(const SkImageInfo&);
 
+    // call this each time we attach ourselves to a device
+    //  - constructor
+    //  - internalSaveLayer
+    void setupDevice(SkBaseDevice*);
+
     SkBaseDevice* init(SkBaseDevice*, InitFlags);
 
     /**
      *  DEPRECATED
      *
      *  Specify a device for this canvas to draw into. If it is not null, its
      *  reference count is incremented. If the canvas was already holding a
      *  device, its reference count is decremented. The new device is returned.
      */
     SkBaseDevice* setRootDevice(SkBaseDevice* device);
@@ skipping 187 matching lines @@
 
 class SkCanvasClipVisitor {
 public:
     virtual ~SkCanvasClipVisitor();
     virtual void clipRect(const SkRect&, SkRegion::Op, bool antialias) = 0;
     virtual void clipRRect(const SkRRect&, SkRegion::Op, bool antialias) = 0;
     virtual void clipPath(const SkPath&, SkRegion::Op, bool antialias) = 0;
 };
 
 #endif