GrRRectEffect.cpp | Explore in Territory

/*
 * Copyright 2014 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "src/gpu/ganesh/effects/GrRRectEffect.h"

#include "include/core/SkPoint.h"
#include "include/core/SkRRect.h"
#include "include/core/SkRect.h"
#include "include/core/SkScalar.h"
#include "include/core/SkString.h"
#include "include/private/base/SkAssert.h"
#include "include/private/gpu/ganesh/GrTypesPriv.h"
#include "src/base/SkRandom.h"
#include "src/base/SkTLazy.h"
#include "src/core/SkRRectPriv.h"
#include "src/core/SkSLTypeShared.h"
#include "src/gpu/KeyBuilder.h"
#include "src/gpu/ganesh/GrCaps.h"
#include "src/gpu/ganesh/GrFragmentProcessor.h"
#include "src/gpu/ganesh/GrProcessorUnitTest.h"
#include "src/gpu/ganesh/GrShaderCaps.h"
#include "src/gpu/ganesh/effects/GrOvalEffect.h"
#include "src/gpu/ganesh/glsl/GrGLSLFragmentShaderBuilder.h"
#include "src/gpu/ganesh/glsl/GrGLSLProgramDataManager.h"
#include "src/gpu/ganesh/glsl/GrGLSLUniformHandler.h"

#include <algorithm>
#include <cstdint>
#include <tuple>
#include <utility>

// The effects defined here only handle rrect radii >= kRadiusMin.
static const SkScalar kRadiusMin = …;

//////////////////////////////////////////////////////////////////////////////

namespace {
class CircularRRectEffect : public GrFragmentProcessor { … };
}  // anonymous namespace

GrFPResult CircularRRectEffect::Make(std::unique_ptr<GrFragmentProcessor> inputFP,
                                     GrClipEdgeType edgeType,
                                     uint32_t circularCornerFlags, const SkRRect& rrect) { … }

CircularRRectEffect::CircularRRectEffect(std::unique_ptr<GrFragmentProcessor> inputFP,
                                         GrClipEdgeType edgeType,
                                         uint32_t circularCornerFlags,
                                         const SkRRect& rrect)
        : … { … }

CircularRRectEffect::CircularRRectEffect(const CircularRRectEffect& that)
        : … { … }

std::unique_ptr<GrFragmentProcessor> CircularRRectEffect::clone() const { … }

bool CircularRRectEffect::onIsEqual(const GrFragmentProcessor& other) const { … }

//////////////////////////////////////////////////////////////////////////////

GR_DEFINE_FRAGMENT_PROCESSOR_TEST(…)

#if defined(GPU_TEST_UTILS)
std::unique_ptr<GrFragmentProcessor> CircularRRectEffect::TestCreate(GrProcessorTestData* d) {
    SkScalar w = d->fRandom->nextRangeScalar(20.f, 1000.f);
    SkScalar h = d->fRandom->nextRangeScalar(20.f, 1000.f);
    SkScalar r = d->fRandom->nextRangeF(kRadiusMin, 9.f);
    SkRRect rrect;
    rrect.setRectXY(SkRect::MakeWH(w, h), r, r);
    std::unique_ptr<GrFragmentProcessor> fp = d->inputFP();
    bool success;
    do {
        GrClipEdgeType et =
                (GrClipEdgeType)d->fRandom->nextULessThan(kGrClipEdgeTypeCnt);
        std::tie(success, fp) = GrRRectEffect::Make(std::move(fp), et, rrect,
                                                    *d->caps()->shaderCaps());
    } while (!success);
    return fp;
}
#endif

//////////////////////////////////////////////////////////////////////////////

class CircularRRectEffect::Impl : public ProgramImpl { … };

void CircularRRectEffect::Impl::emitCode(EmitArgs& args) { … }

void CircularRRectEffect::Impl::onSetData(const GrGLSLProgramDataManager& pdman,
                                          const GrFragmentProcessor& processor) { … }

////////////////////////////////////////////////////////////////////////////////////////////////////

void CircularRRectEffect::onAddToKey(const GrShaderCaps& caps, skgpu::KeyBuilder* b) const { … }

std::unique_ptr<GrFragmentProcessor::ProgramImpl> CircularRRectEffect::onMakeProgramImpl() const { … }

//////////////////////////////////////////////////////////////////////////////

namespace {
class EllipticalRRectEffect : public GrFragmentProcessor { … };

GrFPResult EllipticalRRectEffect::Make(std::unique_ptr<GrFragmentProcessor> inputFP,
                                       GrClipEdgeType edgeType,
                                       const SkRRect& rrect) { … }

EllipticalRRectEffect::EllipticalRRectEffect(std::unique_ptr<GrFragmentProcessor> inputFP,
                                             GrClipEdgeType edgeType,
                                             const SkRRect& rrect)
        : … { … }

EllipticalRRectEffect::EllipticalRRectEffect(const EllipticalRRectEffect& that)
        : … { … }

std::unique_ptr<GrFragmentProcessor> EllipticalRRectEffect::clone() const { … }

bool EllipticalRRectEffect::onIsEqual(const GrFragmentProcessor& other) const { … }
}  // anonymous namespace

//////////////////////////////////////////////////////////////////////////////

GR_DEFINE_FRAGMENT_PROCESSOR_TEST(…)

#if defined(GPU_TEST_UTILS)
std::unique_ptr<GrFragmentProcessor> EllipticalRRectEffect::TestCreate(GrProcessorTestData* d) {
    SkScalar w = d->fRandom->nextRangeScalar(20.f, 1000.f);
    SkScalar h = d->fRandom->nextRangeScalar(20.f, 1000.f);
    SkVector r[4];
    r[SkRRect::kUpperLeft_Corner].fX = d->fRandom->nextRangeF(kRadiusMin, 9.f);
    // ensure at least one corner really is elliptical
    do {
        r[SkRRect::kUpperLeft_Corner].fY = d->fRandom->nextRangeF(kRadiusMin, 9.f);
    } while (r[SkRRect::kUpperLeft_Corner].fY == r[SkRRect::kUpperLeft_Corner].fX);

    SkRRect rrect;
    if (d->fRandom->nextBool()) {
        // half the time create a four-radii rrect.
        r[SkRRect::kLowerRight_Corner].fX = d->fRandom->nextRangeF(kRadiusMin, 9.f);
        r[SkRRect::kLowerRight_Corner].fY = d->fRandom->nextRangeF(kRadiusMin, 9.f);

        r[SkRRect::kUpperRight_Corner].fX = r[SkRRect::kLowerRight_Corner].fX;
        r[SkRRect::kUpperRight_Corner].fY = r[SkRRect::kUpperLeft_Corner].fY;

        r[SkRRect::kLowerLeft_Corner].fX = r[SkRRect::kUpperLeft_Corner].fX;
        r[SkRRect::kLowerLeft_Corner].fY = r[SkRRect::kLowerRight_Corner].fY;

        rrect.setRectRadii(SkRect::MakeWH(w, h), r);
    } else {
        rrect.setRectXY(SkRect::MakeWH(w, h), r[SkRRect::kUpperLeft_Corner].fX,
                                              r[SkRRect::kUpperLeft_Corner].fY);
    }
    std::unique_ptr<GrFragmentProcessor> fp = d->inputFP();
    bool success;
    do {
        GrClipEdgeType et = (GrClipEdgeType)d->fRandom->nextULessThan(kGrClipEdgeTypeCnt);
        std::tie(success, fp) = GrRRectEffect::Make(std::move(fp), et, rrect,
                                                    *d->caps()->shaderCaps());
    } while (!success);
    return fp;
}
#endif

//////////////////////////////////////////////////////////////////////////////

static bool elliptical_effect_uses_scale(const GrShaderCaps& caps, const SkRRect& rrect) { … }

class EllipticalRRectEffect::Impl : public ProgramImpl { … };

void EllipticalRRectEffect::Impl::emitCode(EmitArgs& args) { … }

void EllipticalRRectEffect::Impl::onSetData(const GrGLSLProgramDataManager& pdman,
                                            const GrFragmentProcessor& effect) { … }

////////////////////////////////////////////////////////////////////////////////////////////////////

void EllipticalRRectEffect::onAddToKey(const GrShaderCaps& caps, skgpu::KeyBuilder* b) const { … }

std::unique_ptr<GrFragmentProcessor::ProgramImpl> EllipticalRRectEffect::onMakeProgramImpl() const { … }

//////////////////////////////////////////////////////////////////////////////

GrFPResult GrRRectEffect::Make(std::unique_ptr<GrFragmentProcessor> inputFP,
                               GrClipEdgeType edgeType, const SkRRect& rrect,
                               const GrShaderCaps& caps) { … }
chromium/third_party/skia/src/gpu/ganesh/effects/GrRRectEffect.cpp
