ce686270f5
Included in this cl is support for 3D textures. BUG=skia: Review URL: https://codereview.chromium.org/580863004
113 lines
3.4 KiB
C++
113 lines
3.4 KiB
C++
/*
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* Copyright 2014 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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#include "Benchmark.h"
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#include "SkCanvas.h"
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#include "SkColorCubeFilter.h"
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#include "SkGradientShader.h"
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class ColorCubeBench : public Benchmark {
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SkISize fSize;
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int fCubeDimension;
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SkData* fCubeData;
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SkBitmap fBitmap;
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public:
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ColorCubeBench()
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: fCubeDimension(0)
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, fCubeData(NULL) {
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fSize = SkISize::Make(2880, 1800); // 2014 Macbook Pro resolution
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}
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~ColorCubeBench() {
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SkSafeUnref(fCubeData);
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}
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protected:
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virtual const char* onGetName() SK_OVERRIDE {
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return "colorcube";
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}
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virtual void onPreDraw() SK_OVERRIDE {
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if (!SkToBool(fCubeData)) {
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this->makeCubeData();
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this->make_bitmap();
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}
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}
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virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
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this->test(loops, canvas);
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}
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virtual SkIPoint onGetSize() SK_OVERRIDE {
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return SkIPoint::Make(fSize.width(), fSize.height());
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}
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private:
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static SkShader* MakeLinear(const SkISize& size) {
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const SkPoint pts[2] = {
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{ 0, 0 },
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{ SkIntToScalar(size.width()), SkIntToScalar(size.height()) }
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};
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static const SkColor colors[] = { SK_ColorYELLOW, SK_ColorBLUE };
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return SkGradientShader::CreateLinear(
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pts, colors, NULL, 2, SkShader::kRepeat_TileMode, 0, &SkMatrix::I());
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}
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void make_bitmap() {
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fBitmap.allocN32Pixels(fSize.width(), fSize.height());
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SkCanvas canvas(fBitmap);
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canvas.clear(0x00000000);
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SkPaint paint;
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paint.setAntiAlias(true);
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SkShader* shader = MakeLinear(fSize);
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paint.setShader(shader);
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SkRect r = { 0, 0, SkIntToScalar(fSize.width()), SkIntToScalar(fSize.height()) };
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canvas.drawRect(r, paint);
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shader->unref();
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}
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void makeCubeData() {
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fCubeDimension = 32;
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fCubeData = SkData::NewUninitialized(sizeof(SkColor) *
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fCubeDimension * fCubeDimension * fCubeDimension);
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SkColor* pixels = (SkColor*)(fCubeData->writable_data());
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SkAutoMalloc lutMemory(fCubeDimension);
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uint8_t* lut = (uint8_t*)lutMemory.get();
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const int maxIndex = fCubeDimension - 1;
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for (int i = 0; i < fCubeDimension; ++i) {
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// Make an invert lut, but the content of
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// the lut shouldn't affect performance.
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lut[i] = ((maxIndex - i) * 255) / maxIndex;
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}
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for (int r = 0; r < fCubeDimension; ++r) {
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for (int g = 0; g < fCubeDimension; ++g) {
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for (int b = 0; b < fCubeDimension; ++b) {
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pixels[(fCubeDimension * ((fCubeDimension * b) + g)) + r] =
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SkColorSetARGB(0xFF, lut[r], lut[g], lut[b]);
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}
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}
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}
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}
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void test(const int loops, SkCanvas* canvas) {
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SkAutoTUnref<SkColorFilter> colorCube(
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SkColorCubeFilter::Create(fCubeData, fCubeDimension));
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SkPaint paint;
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paint.setColorFilter(colorCube);
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for (int i = 0; i < loops; i++) {
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canvas->drawBitmap(fBitmap, 0, 0, &paint);
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}
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}
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typedef Benchmark INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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DEF_BENCH( return new ColorCubeBench(); )
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