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/*
* Copyright 2015 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"
#if SK_SUPPORT_GPU
#include "GrContext.h"
#include "GrDrawContext.h"
#include "GrPipelineBuilder.h"
#include "SkDevice.h"
#include "SkRRect.h"
#include "batches/GrDrawBatch.h"
#include "batches/GrRectBatchFactory.h"
#include "effects/GrRRectEffect.h"
namespace skiagm {
///////////////////////////////////////////////////////////////////////////////
class BigRRectAAEffectGM : public GM {
public:
BigRRectAAEffectGM(const SkRRect& rrect, const char* name)
: fRRect(rrect)
, fName(name) {
this->setBGColor(sk_tool_utils::color_to_565(SK_ColorBLUE));
// Each test case draws the rrect with gaps around it.
fTestWidth = SkScalarCeilToInt(rrect.width()) + 2 * kGap;
fTestHeight = SkScalarCeilToInt(rrect.height()) + 2 * kGap;
// Add a pad between test cases.
fTestOffsetX = fTestWidth + kPad;
fTestOffsetY = fTestHeight + kPad;
// We draw two tests in x (fill and inv-fill) and pad around
// all four sides of the image.
fWidth = 2 * fTestOffsetX + kPad;
fHeight = fTestOffsetY + kPad;
}
protected:
SkString onShortName() override {
SkString name;
name.printf("big_rrect_%s_aa_effect", fName);
return name;
}
SkISize onISize() override { return SkISize::Make(fWidth, fHeight); }
void onDraw(SkCanvas* canvas) override {
GrRenderTarget* rt = canvas->internal_private_accessTopLayerRenderTarget();
GrContext* context = rt ? rt->getContext() : nullptr;
if (!context) {
skiagm::GM::DrawGpuOnlyMessage(canvas);
return;
}
SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(rt));
if (!drawContext) {
return;
}
SkPaint paint;
int y = kPad;
int x = kPad;
static const GrPrimitiveEdgeType kEdgeTypes[] = {
kFillAA_GrProcessorEdgeType,
kInverseFillAA_GrProcessorEdgeType,
};
SkRect testBounds = SkRect::MakeIWH(fTestWidth, fTestHeight);
for (size_t et = 0; et < SK_ARRAY_COUNT(kEdgeTypes); ++et) {
GrPrimitiveEdgeType edgeType = kEdgeTypes[et];
canvas->save();
canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
// Draw a background for the test case
SkPaint paint;
paint.setColor(SK_ColorWHITE);
canvas->drawRect(testBounds, paint);
GrPipelineBuilder pipelineBuilder;
pipelineBuilder.setXPFactory(
GrPorterDuffXPFactory::Create(SkXfermode::kSrc_Mode))->unref();
SkRRect rrect = fRRect;
rrect.offset(SkIntToScalar(x + kGap), SkIntToScalar(y + kGap));
SkAutoTUnref<GrFragmentProcessor> fp(GrRRectEffect::Create(edgeType, rrect));
SkASSERT(fp);
if (fp) {
pipelineBuilder.addCoverageFragmentProcessor(fp);
pipelineBuilder.setRenderTarget(rt);
SkRect bounds = testBounds;
bounds.offset(SkIntToScalar(x), SkIntToScalar(y));
SkAutoTUnref<GrDrawBatch> batch(
GrRectBatchFactory::CreateNonAAFill(0xff000000, SkMatrix::I(), bounds,
nullptr, nullptr));
drawContext->internal_drawBatch(pipelineBuilder, batch);
}
canvas->restore();
x = x + fTestOffsetX;
}
}
private:
// pad between test cases
static const int kPad = 7;
// gap between rect for each case that is rendered and exterior of rrect
static const int kGap = 3;
SkRRect fRRect;
int fWidth;
int fHeight;
int fTestWidth;
int fTestHeight;
int fTestOffsetX;
int fTestOffsetY;
const char* fName;
typedef GM INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
// This value is motivated by bug chromium:477684. It has to be large to cause overflow in
// the shader
static const int kSize = 700;
DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeRect(SkRect::MakeIWH(kSize, kSize)), "rect"); )
DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeOval(SkRect::MakeIWH(kSize, kSize)), "circle"); )
DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeOval(SkRect::MakeIWH(kSize - 1, kSize - 10)), "ellipse"); )
// The next two have small linear segments between the corners
DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeRectXY(SkRect::MakeIWH(kSize - 1, kSize - 10), kSize/2.f - 10.f, kSize/2.f - 10.f), "circular_corner"); )
DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeRectXY(SkRect::MakeIWH(kSize - 1, kSize - 10), kSize/2.f - 10.f, kSize/2.f - 15.f), "elliptical_corner"); )
}
#endif
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