cc/heads_up_display_layer_impl.h

   1 // Copyright 2012 The Chromium 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 CCHeadsUpDisplayLayerImpl_h
   6 #define CCHeadsUpDisplayLayerImpl_h
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "CCFontAtlas.h"
  10 #include "CCLayerImpl.h"
  11 #include "CCScopedTexture.h"
  12
  13 class SkCanvas;
  14
  15 namespace cc {
  16
  17 class CCDebugRectHistory;
  18 class CCFontAtlas;
  19 class CCFrameRateCounter;
  20
  21 class CCHeadsUpDisplayLayerImpl : public CCLayerImpl {
  22 public:
  23     static scoped_ptr<CCHeadsUpDisplayLayerImpl> create(int id)
  24     {
  25         return make_scoped_ptr(new CCHeadsUpDisplayLayerImpl(id));
  26     }
  27     virtual ~CCHeadsUpDisplayLayerImpl();
  28
  29     void setFontAtlas(scoped_ptr<CCFontAtlas>);
  30
  31     virtual void willDraw(CCResourceProvider*) OVERRIDE;
  32     virtual void appendQuads(CCQuadSink&, CCAppendQuadsData&) OVERRIDE;
  33     void updateHudTexture(CCResourceProvider*);
  34     virtual void didDraw(CCResourceProvider*) OVERRIDE;
  35
  36     virtual void didLoseContext() OVERRIDE;
  37
  38     virtual bool layerIsAlwaysDamaged() const OVERRIDE;
  39
  40 private:
  41     explicit CCHeadsUpDisplayLayerImpl(int);
  42
  43     virtual const char* layerTypeAsString() const OVERRIDE;
  44
  45     void drawHudContents(SkCanvas*);
  46     void drawFPSCounter(SkCanvas*, CCFrameRateCounter*, int top, int height);
  47     void drawFPSCounterText(SkCanvas*, CCFrameRateCounter*, int top, int width, int height);
  48     void drawDebugRects(SkCanvas*, CCDebugRectHistory*);
  49
  50     scoped_ptr<CCFontAtlas> m_fontAtlas;
  51     scoped_ptr<CCScopedTexture> m_hudTexture;
  52     scoped_ptr<SkCanvas> m_hudCanvas;
  53 };
  54
  55 }  // namespace cc
  56
  57 #endif // CCHeadsUpDisplayLayerImpl_h