fae8fceb4a
Add guard to transition clients Change-Id: Ia7a3e8f95722f91e84af262168dadf89a78707da Reviewed-on: https://skia-review.googlesource.com/c/skia/+/205720 Reviewed-by: Mike Reed <reed@google.com> Commit-Queue: Mike Reed <reed@google.com> Auto-Submit: Mike Reed <reed@google.com>
105 lines
3.8 KiB
C++
105 lines
3.8 KiB
C++
/*
|
|
* Copyright 2018 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
// This benchmark attempts to measure the time to do a fullscreen clear, an axis-aligned partial
|
|
// clear, and a clear restricted to an axis-aligned rounded rect. The fullscreen and axis-aligned
|
|
// partial clears on the GPU should follow a fast path that maps to backend-specialized clear
|
|
// operations, whereas the rounded-rect clear cannot be.
|
|
|
|
#include "Benchmark.h"
|
|
|
|
#include "SkCanvas.h"
|
|
#include "SkGradientShader.h"
|
|
#include "SkPaint.h"
|
|
#include "SkRect.h"
|
|
#include "SkRRect.h"
|
|
|
|
#include "GrRenderTargetContext.h"
|
|
|
|
static sk_sp<SkShader> make_shader() {
|
|
static const SkPoint kPts[] = {{0, 0}, {10, 10}};
|
|
static const SkColor kColors[] = {SK_ColorBLUE, SK_ColorWHITE};
|
|
return SkGradientShader::MakeLinear(kPts, kColors, nullptr, 2, SkTileMode::kClamp);
|
|
}
|
|
|
|
class ClearBench : public Benchmark {
|
|
public:
|
|
enum ClearType {
|
|
kFull_ClearType,
|
|
kPartial_ClearType,
|
|
kComplex_ClearType
|
|
};
|
|
|
|
ClearBench(ClearType type) : fType(type) {}
|
|
|
|
protected:
|
|
const char* onGetName() override {
|
|
switch(fType) {
|
|
case kFull_ClearType:
|
|
return "Clear-Full";
|
|
case kPartial_ClearType:
|
|
return "Clear-Partial";
|
|
case kComplex_ClearType:
|
|
return "Clear-Complex";
|
|
}
|
|
SkASSERT(false);
|
|
return "Unreachable";
|
|
}
|
|
|
|
void onDraw(int loops, SkCanvas* canvas) override {
|
|
static const SkRect kPartialClip = SkRect::MakeLTRB(50, 50, 400, 400);
|
|
static const SkRRect kComplexClip = SkRRect::MakeRectXY(kPartialClip, 15, 15);
|
|
// Small to limit fill cost, but intersects the clips to confound batching
|
|
static const SkRect kInterruptRect = SkRect::MakeXYWH(200, 200, 3, 3);
|
|
|
|
// For the draw that sits between consecutive clears, use a shader that is simple but
|
|
// requires local coordinates so that Ganesh does not convert it into a solid color rect,
|
|
// which could then turn into a scissored-clear behind the scenes.
|
|
SkPaint interruptPaint;
|
|
interruptPaint.setShader(make_shader());
|
|
|
|
GrRenderTargetContext* rtc = canvas->internal_private_accessTopLayerRenderTargetContext();
|
|
if (rtc) {
|
|
// Tricks the GrRenderTargetOpList into thinking it cannot reset its draw op list on
|
|
// a fullscreen clear. If we don't do this, fullscreen clear ops would be created and
|
|
// constantly discard the previous iteration's op so execution would only invoke one
|
|
// actual clear on the GPU (not what we want to measure).
|
|
rtc->setNeedsStencil();
|
|
}
|
|
|
|
for (int i = 0; i < loops; i++) {
|
|
canvas->save();
|
|
switch(fType) {
|
|
case kPartial_ClearType:
|
|
canvas->clipRect(kPartialClip);
|
|
break;
|
|
case kComplex_ClearType:
|
|
canvas->clipRRect(kComplexClip);
|
|
break;
|
|
case kFull_ClearType:
|
|
// Don't add any extra clipping, since it defaults to the entire "device"
|
|
break;
|
|
}
|
|
|
|
// The clear we care about measuring
|
|
canvas->clear(SK_ColorBLUE);
|
|
canvas->restore();
|
|
|
|
// Perform as minimal a draw as possible that intersects with the clear region in
|
|
// order to prevent the clear ops from being batched together.
|
|
canvas->drawRect(kInterruptRect, interruptPaint);
|
|
}
|
|
}
|
|
|
|
private:
|
|
ClearType fType;
|
|
};
|
|
|
|
DEF_BENCH( return new ClearBench(ClearBench::kFull_ClearType); )
|
|
DEF_BENCH( return new ClearBench(ClearBench::kPartial_ClearType); )
|
|
DEF_BENCH( return new ClearBench(ClearBench::kComplex_ClearType); )
|