116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
/*
|
|
* Copyright 2021 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
// This test only works with the GPU backend.
|
|
|
|
#include "gm/gm.h"
|
|
#include "include/core/SkBlendMode.h"
|
|
#include "include/core/SkCanvas.h"
|
|
#include "include/core/SkMatrix.h"
|
|
#include "include/core/SkPaint.h"
|
|
#include "include/core/SkRect.h"
|
|
#include "include/core/SkScalar.h"
|
|
#include "include/core/SkSize.h"
|
|
#include "include/core/SkString.h"
|
|
#include "include/private/GrTypesPriv.h"
|
|
#include "src/core/SkCanvasPriv.h"
|
|
#include "src/gpu/GrFragmentProcessor.h"
|
|
#include "src/gpu/GrPaint.h"
|
|
#include "src/gpu/effects/GrPorterDuffXferProcessor.h"
|
|
#include "src/gpu/v1/SurfaceDrawContext_v1.h"
|
|
#include "tools/gpu/TestOps.h"
|
|
|
|
#include <memory>
|
|
#include <utility>
|
|
|
|
class GrAppliedClip;
|
|
|
|
namespace skiagm {
|
|
|
|
/**
|
|
* This GM directly exercises a GrProcessor that clips against rects.
|
|
*/
|
|
class AARectEffect : public GpuGM {
|
|
public:
|
|
AARectEffect() { this->setBGColor(0xFFFFFFFF); }
|
|
|
|
protected:
|
|
SkString onShortName() override { return SkString("aa_rect_effect"); }
|
|
|
|
SkISize onISize() override { return SkISize::Make(210, 250); }
|
|
|
|
void onOnceBeforeDraw() override {}
|
|
|
|
DrawResult onDraw(GrRecordingContext* rContext, SkCanvas* canvas, SkString* errorMsg) override {
|
|
auto sdc = SkCanvasPriv::TopDeviceSurfaceDrawContext(canvas);
|
|
if (!sdc) {
|
|
*errorMsg = kErrorMsg_DrawSkippedGpuOnly;
|
|
return DrawResult::kSkip;
|
|
}
|
|
|
|
SkScalar y = 12.f;
|
|
static constexpr SkScalar kDX = 12.f;
|
|
static constexpr SkScalar kOutset = 5.f;
|
|
|
|
static constexpr SkRect kRects[] = {
|
|
// integer edges
|
|
SkRect::MakeLTRB(5.f, 1.f, 30.f, 25.f),
|
|
// half-integer edges
|
|
SkRect::MakeLTRB(5.5f, 0.5f, 29.5f, 24.5f),
|
|
// vertically/horizontally thin rects that cover pixel centers
|
|
SkRect::MakeLTRB(5.25f, 0.5f, 5.75f, 24.5f),
|
|
SkRect::MakeLTRB(5.5f, 0.5f, 29.5f, 0.75f),
|
|
// vertically/horizontally thin rects that don't cover pixel centers
|
|
SkRect::MakeLTRB(5.55f, 0.5f, 5.75f, 24.5f),
|
|
SkRect::MakeLTRB(5.5f, .05f, 29.5f, .25f),
|
|
// small in x and y
|
|
SkRect::MakeLTRB(5.05f, .55f, 5.45f, .85f),
|
|
};
|
|
|
|
for (auto r : kRects) {
|
|
SkScalar x = kDX;
|
|
|
|
for (int et = 0; et < kGrClipEdgeTypeCnt; ++et) {
|
|
SkRect rect = r.makeOffset(x, y);
|
|
GrClipEdgeType edgeType = static_cast<GrClipEdgeType>(et);
|
|
auto fp = GrFragmentProcessor::Rect(/*inputFP=*/nullptr, edgeType, rect);
|
|
SkASSERT(fp);
|
|
|
|
GrPaint grPaint;
|
|
grPaint.setColor4f({ 0, 0, 0, 1.f });
|
|
grPaint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc));
|
|
grPaint.setCoverageFragmentProcessor(std::move(fp));
|
|
auto drawRect = rect.makeOutset(kOutset, kOutset);
|
|
auto op = sk_gpu_test::test_ops::MakeRect(rContext, std::move(grPaint), drawRect);
|
|
sdc->addDrawOp(std::move(op));
|
|
|
|
x += SkScalarCeilToScalar(rect.width() + kDX);
|
|
}
|
|
|
|
// Draw rect without and with AA using normal API for reference
|
|
canvas->save();
|
|
canvas->translate(x, y);
|
|
SkPaint paint;
|
|
canvas->drawRect(r, paint);
|
|
x += SkScalarCeilToScalar(r.width() + kDX);
|
|
paint.setAntiAlias(true);
|
|
canvas->drawRect(r, paint);
|
|
canvas->restore();
|
|
|
|
y += SkScalarCeilToScalar(r.height() + 20.f);
|
|
}
|
|
|
|
return DrawResult::kOk;
|
|
}
|
|
|
|
private:
|
|
using INHERITED = GM;
|
|
};
|
|
|
|
DEF_GM(return new AARectEffect;)
|
|
} // namespace skiagm
|