eaa7797990
This adds kSrcInLum_Mode and kDstInLum_Mode, to support CSS and SVG luminance masks (http://www.w3.org/TR/css-masking/#MaskValues , http://www.w3.org/TR/SVG/masking.html#Masking ). The transfer coefficient is computed according to http://www.w3.org/TR/2011/REC-SVG11-20110816/filters.html#feColorMatrixElement "luminance-to-alpha": luma = 0.2125 * r + 0.7154 * g + 0.0721 * b R=bsalomon@google.com, reed@google.com, robertphillips@google.com, vandebo@chromium.org Author: fmalita@chromium.org Review URL: https://chromiumcodereview.appspot.com/22918012 git-svn-id: http://skia.googlecode.com/svn/trunk@10887 2bbb7eff-a529-9590-31e7-b0007b416f81
110 lines
3.4 KiB
C++
110 lines
3.4 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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#include "SkBenchmark.h"
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#include "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkRandom.h"
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#include "SkString.h"
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#include "SkXfermode.h"
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#include "SkLumaXfermode.h"
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// Benchmark that draws non-AA rects with an SkXfermode::Mode
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class XfermodeBench : public SkBenchmark {
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public:
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XfermodeBench(void* param, SkXfermode::Mode mode) : SkBenchmark(param) {
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fXfermode.reset(SkXfermode::Create(mode));
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SkASSERT(NULL != fXfermode.get() || SkXfermode::kSrcOver_Mode == mode);
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fName.printf("Xfermode_%s", SkXfermode::ModeName(mode));
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}
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XfermodeBench(void* param, SkXfermode* xferMode, const char* name)
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: SkBenchmark(param) {
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SkASSERT(NULL != xferMode);
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fXfermode.reset(xferMode);
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fName.printf("Xfermode_%s", name);
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}
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protected:
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virtual const char* onGetName() SK_OVERRIDE { return fName.c_str(); }
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virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
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SkISize size = canvas->getDeviceSize();
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SkMWCRandom random;
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for (int i = 0; i < kNumRects; ++i) {
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SkPaint paint;
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paint.setXfermode(fXfermode.get());
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paint.setColor(random.nextU());
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SkScalar w = random.nextRangeScalar(SkIntToScalar(kMinSize), SkIntToScalar(kMaxSize));
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SkScalar h = random.nextRangeScalar(SkIntToScalar(kMinSize), SkIntToScalar(kMaxSize));
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SkRect rect = SkRect::MakeXYWH(
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random.nextUScalar1() * (size.fWidth - w),
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random.nextUScalar1() * (size.fHeight - h),
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w,
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h
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);
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canvas->drawRect(rect, paint);
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}
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}
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private:
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enum {
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kNumRects = SkBENCHLOOP(75),
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kMinSize = 50,
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kMaxSize = 100,
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};
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SkAutoTUnref<SkXfermode> fXfermode;
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SkString fName;
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typedef SkBenchmark INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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#define CONCAT_I(x, y) x ## y
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#define CONCAT(x, y) CONCAT_I(x, y) // allow for macro expansion
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#define BENCH(...) \
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static SkBenchmark* CONCAT(Fact, __LINE__)(void *p) { return new XfermodeBench(p, __VA_ARGS__); };\
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static BenchRegistry CONCAT(gReg, __LINE__)(CONCAT(Fact, __LINE__));
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BENCH(SkXfermode::kClear_Mode)
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BENCH(SkXfermode::kSrc_Mode)
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BENCH(SkXfermode::kDst_Mode)
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BENCH(SkXfermode::kSrcOver_Mode)
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BENCH(SkXfermode::kDstOver_Mode)
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BENCH(SkXfermode::kSrcIn_Mode)
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BENCH(SkXfermode::kDstIn_Mode)
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BENCH(SkXfermode::kSrcOut_Mode)
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BENCH(SkXfermode::kDstOut_Mode)
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BENCH(SkXfermode::kSrcATop_Mode)
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BENCH(SkXfermode::kDstATop_Mode)
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BENCH(SkXfermode::kXor_Mode)
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BENCH(SkXfermode::kPlus_Mode)
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BENCH(SkXfermode::kModulate_Mode)
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BENCH(SkXfermode::kScreen_Mode)
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BENCH(SkXfermode::kOverlay_Mode)
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BENCH(SkXfermode::kDarken_Mode)
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BENCH(SkXfermode::kLighten_Mode)
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BENCH(SkXfermode::kColorDodge_Mode)
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BENCH(SkXfermode::kColorBurn_Mode)
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BENCH(SkXfermode::kHardLight_Mode)
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BENCH(SkXfermode::kSoftLight_Mode)
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BENCH(SkXfermode::kDifference_Mode)
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BENCH(SkXfermode::kExclusion_Mode)
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BENCH(SkXfermode::kMultiply_Mode)
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BENCH(SkXfermode::kHue_Mode)
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BENCH(SkXfermode::kSaturation_Mode)
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BENCH(SkXfermode::kColor_Mode)
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BENCH(SkXfermode::kLuminosity_Mode)
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BENCH(SkLumaMaskXfermode::Create(SkXfermode::kSrcIn_Mode), "SrcInLuma")
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BENCH(SkLumaMaskXfermode::Create(SkXfermode::kDstIn_Mode), "DstInLuma")
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