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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.
#ifndef GrTestUtils_DEFINED
#define GrTestUtils_DEFINED
#include "include/core/SkTypes.h"
#include "include/core/SkStrokeRec.h"
#include "include/private/SkMacros.h"
#include "include/private/SkTemplates.h"
#include "include/utils/SkRandom.h"
#include "src/core/SkMatrixProvider.h"
#include "src/core/SkPathEffectBase.h"
#include "src/gpu/GrColor.h"
#include "src/gpu/GrFPArgs.h"
#include "src/gpu/GrSamplerState.h"
#include "src/shaders/SkShaderBase.h"
class GrColorInfo;
class GrColorSpaceXform;
class GrProcessorTestData;
class GrStyle;
class SkMatrix;
class SkPath;
class SkRRect;
struct SkRect;
namespace GrTest {
* Helpers for use in Test functions.
const SkMatrix& TestMatrix(SkRandom*);
const SkMatrix& TestMatrixPreservesRightAngles(SkRandom*);
const SkMatrix& TestMatrixRectStaysRect(SkRandom*);
const SkMatrix& TestMatrixInvertible(SkRandom*);
const SkMatrix& TestMatrixPerspective(SkRandom*);
void TestWrapModes(SkRandom*, GrSamplerState::WrapMode[2]);
const SkRect& TestRect(SkRandom*);
const SkRect& TestSquare(SkRandom*);
const SkRRect& TestRRectSimple(SkRandom*);
const SkPath& TestPath(SkRandom*);
const SkPath& TestPathConvex(SkRandom*);
SkStrokeRec TestStrokeRec(SkRandom*);
/** Creates styles with dash path effects and null path effects */
void TestStyle(SkRandom*, GrStyle*);
sk_sp<SkColorSpace> TestColorSpace(SkRandom*);
sk_sp<GrColorSpaceXform> TestColorXform(SkRandom*);
GrColor RandomColor(SkRandom* random);
uint8_t RandomCoverage(SkRandom* random);
class TestAsFPArgs {
const GrFPArgs& args() const { return fArgs; }
SkMatrixProvider fMatrixProvider;
std::unique_ptr<GrColorInfo> fColorInfoStorage;
GrFPArgs fArgs;
// We have a simplified dash path effect here to avoid relying on SkDashPathEffect which
// is in the optional build target effects.
class TestDashPathEffect : public SkPathEffectBase {
static sk_sp<SkPathEffect> Make(const SkScalar* intervals, int count, SkScalar phase) {
return sk_sp<SkPathEffect>(new TestDashPathEffect(intervals, count, phase));
Factory getFactory() const override { return nullptr; }
const char* getTypeName() const override { return nullptr; }
bool onFilterPath(SkPath* dst, const SkPath&, SkStrokeRec* , const SkRect*,
const SkMatrix&) const override;
DashType onAsADash(DashInfo* info) const override;
TestDashPathEffect(const SkScalar* intervals, int count, SkScalar phase);
bool computeFastBounds(SkRect* bounds) const override { return true; }
int fCount;
SkAutoTArray<SkScalar> fIntervals;
SkScalar fPhase;
SkScalar fInitialDashLength;
int fInitialDashIndex;
SkScalar fIntervalLength;
} // namespace GrTest