2a475eae62
Many tests and examples use drawText with a guess of how long the text is in bytes, or a call to strlen(). Add a helper to SkCanvas to simplify these examples. Add another helper for SkString. R=reed@google.com Change-Id: I0204a31e938f065606f08ee7cd9a6b36db791ee2 Reviewed-on: https://skia-review.googlesource.com/13642 Commit-Queue: Cary Clark <caryclark@google.com> Reviewed-by: Cary Clark <caryclark@google.com> Reviewed-by: Mike Reed <reed@google.com> Reviewed-by: Cary Clark <caryclark@skia.org>
98 lines
3.0 KiB
C++
98 lines
3.0 KiB
C++
/*
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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 "Benchmark.h"
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#include "SkCanvas.h"
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#include "SkImageSource.h"
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#include "SkMergeImageFilter.h"
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#include "SkSurface.h"
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#define FILTER_WIDTH_SMALL SkIntToScalar(32)
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#define FILTER_HEIGHT_SMALL SkIntToScalar(32)
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#define FILTER_WIDTH_LARGE SkIntToScalar(256)
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#define FILTER_HEIGHT_LARGE SkIntToScalar(256)
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static sk_sp<SkImage> make_bitmap() {
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sk_sp<SkSurface> surface(SkSurface::MakeRasterN32Premul(80, 80));
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surface->getCanvas()->clear(0x00000000);
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(0xFF884422);
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paint.setTextSize(SkIntToScalar(96));
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const char* str = "g";
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surface->getCanvas()->drawString(str, 15, 55, paint);
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return surface->makeImageSnapshot();
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}
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static sk_sp<SkImage> make_checkerboard() {
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sk_sp<SkSurface> surface(SkSurface::MakeRasterN32Premul(80, 80));
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SkCanvas* canvas = surface->getCanvas();
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canvas->clear(0x00000000);
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SkPaint darkPaint;
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darkPaint.setColor(0xFF804020);
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SkPaint lightPaint;
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lightPaint.setColor(0xFF244484);
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for (int y = 0; y < 80; y += 16) {
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for (int x = 0; x < 80; x += 16) {
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canvas->save();
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canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
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canvas->drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
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canvas->drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
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canvas->drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
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canvas->drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
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canvas->restore();
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}
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}
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return surface->makeImageSnapshot();
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}
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class MergeBench : public Benchmark {
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public:
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MergeBench(bool small) : fIsSmall(small), fInitialized(false) { }
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protected:
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const char* onGetName() override {
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return fIsSmall ? "merge_small" : "merge_large";
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}
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void onDelayedSetup() override {
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if (!fInitialized) {
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fImage = make_bitmap();
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fCheckerboard = make_checkerboard();
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fInitialized = true;
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}
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}
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void onDraw(int loops, SkCanvas* canvas) override {
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SkRect r = fIsSmall ? SkRect::MakeWH(FILTER_WIDTH_SMALL, FILTER_HEIGHT_SMALL) :
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SkRect::MakeWH(FILTER_WIDTH_LARGE, FILTER_HEIGHT_LARGE);
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SkPaint paint;
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paint.setImageFilter(this->mergeBitmaps());
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for (int i = 0; i < loops; i++) {
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canvas->drawRect(r, paint);
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}
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}
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private:
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sk_sp<SkImageFilter> mergeBitmaps() {
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return SkMergeImageFilter::Make(SkImageSource::Make(fCheckerboard),
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SkImageSource::Make(fImage), SkBlendMode::kSrcOver);
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}
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bool fIsSmall;
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bool fInitialized;
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sk_sp<SkImage> fImage, fCheckerboard;
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typedef Benchmark INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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DEF_BENCH( return new MergeBench(true); )
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DEF_BENCH( return new MergeBench(false); )
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