chromium/third_party/skia/src/core/SkKnownRuntimeEffects.cpp

/*
 * Copyright 2024 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "src/core/SkKnownRuntimeEffects.h"

#include "include/core/SkString.h"
#include "include/effects/SkRuntimeEffect.h"
#include "src/core/SkRuntimeEffectPriv.h"
#include "src/effects/imagefilters/SkMatrixConvolutionImageFilter.h"

namespace SkKnownRuntimeEffects {

namespace {

// This must be kept in sync w/ the version in BlurUtils.h
static constexpr int kMaxBlurSamples = …;

SkRuntimeEffect* make_blur_1D_effect(int kernelWidth, const SkRuntimeEffect::Options& options) { … }

SkRuntimeEffect* make_blur_2D_effect(int maxKernelSize, const SkRuntimeEffect::Options& options) { … }

enum class MatrixConvolutionImpl { … };

// There are three shader variants:
//    a smaller kernel version that stores the matrix in uniforms and iterates in 1D
//    a larger kernel version that stores the matrix in a 1D texture. The texture version has small
//    and large variants w/ the actual kernel size uploaded as a uniform.
SkRuntimeEffect* make_matrix_conv_effect(MatrixConvolutionImpl impl,
                                         const SkRuntimeEffect::Options& options) { … }

} // anonymous namespace

const SkRuntimeEffect* GetKnownRuntimeEffect(StableKey stableKey) { … }

} // namespace SkKnownRuntimeEffects