2bd8b81005
objective -- move clients over to SkImage tasks - use SkImageInfo instead of SkBitmap::Config - add support for colortables to SkImage - add drawImage to SkCanvas - return SkImage from readPixels This CL works towards the first task R=robertphillips@google.com Review URL: https://codereview.chromium.org/54363008 git-svn-id: http://skia.googlecode.com/svn/trunk@12077 2bbb7eff-a529-9590-31e7-b0007b416f81
83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
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/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#if SK_SUPPORT_GPU
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#include "GrRenderTarget.h"
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#endif
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#include "SkBenchmark.h"
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#include "SkDeferredCanvas.h"
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#include "SkDevice.h"
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#include "SkImage.h"
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#include "SkSurface.h"
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class DeferredSurfaceCopyBench : public SkBenchmark {
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enum {
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kSurfaceWidth = 1000,
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kSurfaceHeight = 1000,
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};
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public:
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DeferredSurfaceCopyBench(bool discardableContents) {
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fDiscardableContents = discardableContents;
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}
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protected:
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virtual const char* onGetName() SK_OVERRIDE {
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return fDiscardableContents ? "DeferredSurfaceCopy_discardable" :
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"DeferredSurfaceCopy_nonDiscardable";
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}
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virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
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// The canvas is not actually used for this test except to provide
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// configuration information: gpu, multisampling, size, etc?
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SkImageInfo info;
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info.fWidth = kSurfaceWidth;
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info.fHeight = kSurfaceHeight;
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info.fColorType = kPMColor_SkColorType;
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info.fAlphaType = kPremul_SkAlphaType;
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const SkRect fullCanvasRect = SkRect::MakeWH(
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SkIntToScalar(kSurfaceWidth), SkIntToScalar(kSurfaceHeight));
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SkSurface* surface;
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#if SK_SUPPORT_GPU
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GrRenderTarget* rt = reinterpret_cast<GrRenderTarget*>(
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canvas->getDevice()->accessRenderTarget());
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if (NULL != rt) {
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surface = SkSurface::NewRenderTarget(rt->getContext(), info, rt->numSamples());
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} else
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#endif
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{
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surface = SkSurface::NewRaster(info);
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}
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SkAutoTUnref<SkDeferredCanvas> drawingCanvas(SkDeferredCanvas::Create(surface));
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surface->unref();
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for (int iteration = 0; iteration < this->getLoops(); iteration++) {
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drawingCanvas->clear(0);
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SkAutoTUnref<SkImage> image(drawingCanvas->newImageSnapshot());
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SkPaint paint;
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if (!fDiscardableContents) {
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// If paint is not opaque, prior canvas contents are
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// not discardable because they are needed for compositing.
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paint.setAlpha(127);
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}
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drawingCanvas->drawRect(fullCanvasRect, paint);
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// Trigger copy on write, which should be faster in the discardable case.
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drawingCanvas->flush();
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}
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}
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private:
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bool fDiscardableContents;
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typedef SkBenchmark INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_BENCH( return new DeferredSurfaceCopyBench(false); )
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DEF_BENCH( return new DeferredSurfaceCopyBench(true); )
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