chromium/third_party/skia/modules/skottie/src/effects/ThresholdEffect.cpp

/*
 * Copyright 2021 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "include/core/SkData.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkString.h"
#include "include/effects/SkRuntimeEffect.h"
#include "include/private/base/SkAssert.h"
#include "modules/skottie/src/Adapter.h"
#include "modules/skottie/src/SkottiePriv.h"
#include "modules/skottie/src/SkottieValue.h"
#include "modules/skottie/src/effects/Effects.h"
#include "modules/sksg/include/SkSGColorFilter.h"
#include "modules/sksg/include/SkSGRenderNode.h"

#include <cstddef>
#include <utility>

namespace skjson {
class ArrayValue;
}

namespace skottie::internal {
namespace {

// Convert to black & white, based on input luminance and a threshold uniform.
static constexpr char gThresholdSkSL[] = …
;

static sk_sp<SkRuntimeEffect> threshold_effect() { … }

class ThresholdAdapter final : public DiscardableAdapterBase<ThresholdAdapter,
                                                             sksg::ExternalColorFilter> { … };

} // namespace

sk_sp<sksg::RenderNode> EffectBuilder::attachThresholdEffect(const skjson::ArrayValue& jprops,
                                                             sk_sp<sksg::RenderNode> layer) const { … }

} // namespace skottie::internal