skia2/gm/drawregion.cpp
msarett febb224699 Reduce CPU overhead on drawRegion()
Only batch when the view matrices are the same.

This allows us to skip applying the matrix and uploading
local coords.

drawregion Bench on Nexus 6P:
Before 4.69ms
After  2.83ms

This puts SkiaGL nearly on par with OpenGL.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2282983003

Review-Url: https://codereview.chromium.org/2282983003
2016-08-26 12:49:27 -07:00

57 lines
1.2 KiB
C++

/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "SkCanvas.h"
/**
* This is very similar to the RectGrid macrobench in Android.
*/
class DrawRegionGM : public skiagm::GM {
public:
DrawRegionGM() {}
protected:
SkString onShortName() override {
return SkString("drawregion");
}
SkISize onISize() override {
return SkISize::Make(500, 500);
}
bool runAsBench() const override {
return true;
}
void onOnceBeforeDraw() override {
for (int x = 50; x < 250; x+=2) {
for (int y = 50; y < 250; y+=2) {
fRegion.op(x, y, x + 1, y + 1, SkRegion::kUnion_Op);
}
}
}
void onDraw(SkCanvas* canvas) override {
canvas->translate(10, 10);
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setColor(0xFFFF00FF);
canvas->drawRect(SkRect::MakeLTRB(50.0f, 50.0f, 250.0f, 250.0f), paint);
paint.setColor(0xFF00FFFF);
canvas->drawRegion(fRegion, paint);
}
SkRegion fRegion;
private:
typedef skiagm::GM INHERITED;
};
DEF_GM( return new DrawRegionGM; )