Implement a benchmark for GrResourceCache

bench/SkBenchmark.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkBenchmark_DEFINED
 #define SkBenchmark_DEFINED
 
@@ skipping 11 matching lines @@
  *  of your .cpp)
  *
  *  DEF_BENCH(return new MyBenchmark(...))
  *  DEF_BENCH(return new MyBenchmark(...))
  *  DEF_BENCH(return new MyBenchmark(...))
  */
 
 
 class SkCanvas;
 class SkPaint;
+#if SK_SUPPORT_GPU
+class GrContext;
+#endif
 
 class SkTriState {
 public:
     enum State {
         kDefault,
         kTrue,
         kFalse
     };
     static const char* Name[];
 };
 
 class SkBenchmark : public SkRefCnt {
 public:
     SK_DECLARE_INST_COUNT(SkBenchmark)
 
     SkBenchmark();
 
     const char* getName();
     SkIPoint getSize();
 
+    enum Backend {
+        kNonRendering_Backend,
+        kRaster_Backend,
+        kGPU_Backend,
+        kPDF_Backend,
+    };
+
+    // Call to determine whether the benchmark is intended for
+    // the rendering mode.
+    virtual bool isSuitableFor(Backend) {
+        return true;
+    }
+
     // Call before draw, allows the benchmark to do setup work outside of the
     // timer. When a benchmark is repeatedly drawn, this should be called once
     // before the initial draw.
     void preDraw();
 
     void draw(SkCanvas*);
 
     // Call after draw, allows the benchmark to do cleanup work outside of the
     // timer. When a benchmark is repeatedly drawn, this is only called once
     // after the last draw.
     void postDraw();
 
     void setForceAlpha(int alpha) {
         fForceAlpha = alpha;
     }
 
     void setForceAA(bool aa) {
         fForceAA = aa;
     }
 
     void setForceFilter(bool filter) {
         fForceFilter = filter;
     }
 
     void setDither(SkTriState::State state) {
         fDither = state;
     }
 
-    /** If true; the benchmark does rendering; if false, the benchmark
-        doesn't, and so need not be re-run in every different rendering
-        mode. */
-    bool isRendering() {
-        return fIsRendering;
-    }
-
     /** Assign masks for paint-flags. These will be applied when setupPaint()
      *  is called.
      *
      *  Performs the following on the paint:
      *      uint32_t flags = paint.getFlags();
      *      flags &= ~clearMask;
      *      flags |= orMask;
      *      paint.setFlags(flags);
      */
     void setPaintMasks(uint32_t orMask, uint32_t clearMask) {
         fOrMask = orMask;
         fClearMask = clearMask;
     }
 
     // The bench framework calls this to control the runtime of a bench.
     void setLoops(int loops) {
         fLoops = loops;
     }
 
     // Each bench should do its main work in a loop like this:
     //   for (int i = 0; i < this->getLoops(); i++) { <work here> }
     int getLoops() const { return fLoops; }
 
     static void SetResourcePath(const char* resPath) { gResourcePath.set(resPath); }
 
     static SkString& GetResourcePath() { return gResourcePath; }
 
+#if SK_SUPPORT_GPU
+    virtual void setContext(GrContext* context) { fContext = context; };

[mtklein, 2013/11/19 12:59:01]

Would something like GrContext* GM::GetGr(SkCanvas*) (in gm/gm.cpp) work here
too?  Seems annoying to have to thread the context through if it's retrievable
from the canvas.  If it is, we could extract that function into a little file to
share between bench and GM.

[Kimmo Kinnunen, 2013/11/19 14:12:49]

Done.

+#endif
+
 protected:
     virtual void setupPaint(SkPaint* paint);
 
+
     virtual const char* onGetName() = 0;
     virtual void onPreDraw() {}
     virtual void onDraw(SkCanvas*) = 0;
     virtual void onPostDraw() {}
 
     virtual SkIPoint onGetSize();
-    /// Defaults to true.
-    bool    fIsRendering;
+#if SK_SUPPORT_GPU
+    GrContext* fContext;
+#endif
 
 private:
     int     fForceAlpha;
     bool    fForceAA;
     bool    fForceFilter;
     SkTriState::State  fDither;
     uint32_t    fOrMask, fClearMask;
     int fLoops;
     static  SkString gResourcePath;
 
     typedef SkRefCnt INHERITED;
 };
 
 typedef SkTRegistry<SkBenchmark*(*)()> BenchRegistry;
 
 #endif