Baby step in making SkGpuDevice no longer derive from SkBitmapDevice

include/gpu/SkGpuDevice.h

 
 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 
@@ skipping 45 matching lines @@
      */
     SkGpuDevice(GrContext*, GrTexture*);
 
     virtual ~SkGpuDevice();
 
     GrContext* context() const { return fContext; }
 
     virtual GrRenderTarget* accessRenderTarget() SK_OVERRIDE;
 
     // overrides from SkBaseDevice
+    virtual uint32_t getDeviceCapabilities() SK_OVERRIDE {
+        return 0;
+    }
+    virtual int width() const SK_OVERRIDE {
+        return NULL == fRenderTarget ? 0 : fRenderTarget->width();
+    }
+    virtual int height() const SK_OVERRIDE {
+        return NULL == fRenderTarget ? 0 : fRenderTarget->height();
+    }
+    virtual void getGlobalBounds(SkIRect* bounds) const SK_OVERRIDE;
+    virtual bool isOpaque() const SK_OVERRIDE { 
+        return NULL == fRenderTarget ? false 
+                                     : kRGB_565_GrPixelConfig == fRenderTarget->config(); 
+    }
+    virtual SkBitmap::Config config() const SK_OVERRIDE;
 
     virtual void clear(SkColor color) SK_OVERRIDE;
     virtual void writePixels(const SkBitmap& bitmap, int x, int y,
                              SkCanvas::Config8888 config8888) SK_OVERRIDE;
 
     virtual void drawPaint(const SkDraw&, const SkPaint& paint) SK_OVERRIDE;
     virtual void drawPoints(const SkDraw&, SkCanvas::PointMode mode, size_t count,
                             const SkPoint[], const SkPaint& paint) SK_OVERRIDE;
     virtual void drawRect(const SkDraw&, const SkRect& r,
                           const SkPaint& paint) SK_OVERRIDE;
@@ skipping 113 matching lines @@
 
     /**
      * Returns non-initialized instance.
      */
     GrTextContext* getTextContext();
 
     typedef SkBitmapDevice INHERITED;
 };
 
 #endif