chromium/third_party/skia/src/shaders/gradients/SkSweepGradient.cpp

/*
 * Copyright 2012 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "src/shaders/gradients/SkSweepGradient.h"

#include "include/core/SkColor.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkShader.h"
#include "include/core/SkTileMode.h"
#include "include/effects/SkGradientShader.h"
#include "include/private/base/SkAssert.h"
#include "include/private/base/SkFloatingPoint.h"
#include "include/private/base/SkTArray.h"
#include "src/core/SkRasterPipeline.h"
#include "src/core/SkRasterPipelineOpList.h"
#include "src/core/SkReadBuffer.h"
#include "src/core/SkWriteBuffer.h"
#include "src/shaders/SkShaderBase.h"
#include "src/shaders/gradients/SkGradientBaseShader.h"

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

class SkArenaAlloc;

SkSweepGradient::SkSweepGradient(const SkPoint& center,
                                 SkScalar t0,
                                 SkScalar t1,
                                 const Descriptor& desc)
        : … { … }

SkShaderBase::GradientType SkSweepGradient::asGradient(GradientInfo* info,
                                                       SkMatrix* localMatrix) const { … }

static std::tuple<SkScalar, SkScalar> angles_from_t_coeff(SkScalar tBias, SkScalar tScale) { … }

sk_sp<SkFlattenable> SkSweepGradient::CreateProc(SkReadBuffer& buffer) { … }

void SkSweepGradient::flatten(SkWriteBuffer& buffer) const { … }

void SkSweepGradient::appendGradientStages(SkArenaAlloc* alloc, SkRasterPipeline* p,
                                           SkRasterPipeline*) const { … }

sk_sp<SkShader> SkGradientShader::MakeSweep(SkScalar cx, SkScalar cy,
                                            const SkColor4f colors[],
                                            sk_sp<SkColorSpace> colorSpace,
                                            const SkScalar pos[],
                                            int colorCount,
                                            SkTileMode mode,
                                            SkScalar startAngle,
                                            SkScalar endAngle,
                                            const Interpolation& interpolation,
                                            const SkMatrix* localMatrix) { … }

sk_sp<SkShader> SkGradientShader::MakeSweep(SkScalar cx, SkScalar cy,
                                            const SkColor colors[],
                                            const SkScalar pos[],
                                            int colorCount,
                                            SkTileMode mode,
                                            SkScalar startAngle,
                                            SkScalar endAngle,
                                            uint32_t flags,
                                            const SkMatrix* localMatrix) { … }

void SkRegisterSweepGradientShaderFlattenable() { … }