chromium/third_party/dawn/src/dawn/native/ApplyClearColorValueWithDrawHelper.cpp

// Copyright 2022 The Dawn & Tint Authors
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#include "dawn/native/ApplyClearColorValueWithDrawHelper.h"

#include <limits>
#include <string>
#include <utility>

#include "dawn/common/Enumerator.h"
#include "dawn/common/Range.h"
#include "dawn/native/BindGroup.h"
#include "dawn/native/BindGroupLayout.h"
#include "dawn/native/Buffer.h"
#include "dawn/native/CommandEncoder.h"
#include "dawn/native/Device.h"
#include "dawn/native/InternalPipelineStore.h"
#include "dawn/native/ObjectContentHasher.h"
#include "dawn/native/RenderPassEncoder.h"
#include "dawn/native/RenderPipeline.h"
#include "dawn/native/utils/WGPUHelpers.h"
#include "dawn/native/webgpu_absl_format.h"

namespace dawn::native {

namespace {

// General helper functions and data structures for applying clear values with draw
static const char kVSSource[] = …;

const char* GetTextureComponentTypeString(DeviceBase* device, wgpu::TextureFormat format) { … }

// Construct the fragment shader to apply the input color values to the corresponding color
// attachments of KeyOfApplyClearColorValueWithDrawPipelines.
std::string ConstructFragmentShader(DeviceBase* device,
                                    const KeyOfApplyClearColorValueWithDrawPipelines& key) { … }

RenderPipelineBase* GetCachedPipeline(InternalPipelineStore* store,
                                      const KeyOfApplyClearColorValueWithDrawPipelines& key) { … }

ResultOrError<RenderPipelineBase*> GetOrCreateApplyClearValueWithDrawPipeline(
    DeviceBase* device,
    const KeyOfApplyClearColorValueWithDrawPipelines& key) { … }

Color GetClearColorValue(const RenderPassColorAttachment& attachment) { … }

ResultOrError<Ref<BufferBase>> CreateUniformBufferWithClearValues(
    CommandEncoder* encoder,
    const RenderPassDescriptor* renderPassDescriptor,
    const KeyOfApplyClearColorValueWithDrawPipelines& key) { … }

bool NeedsBigIntClear(const RenderPassColorAttachment& colorAttachmentInfo) { … }

bool GetKeyOfApplyClearColorValueWithDrawPipelines(
    const DeviceBase* device,
    const RenderPassDescriptor* renderPassDescriptor,
    KeyOfApplyClearColorValueWithDrawPipelines* key) { … }

}  // namespace

size_t KeyOfApplyClearColorValueWithDrawPipelinesHashFunc::operator()(
    KeyOfApplyClearColorValueWithDrawPipelines key) const { … }

bool KeyOfApplyClearColorValueWithDrawPipelinesEqualityFunc::operator()(
    KeyOfApplyClearColorValueWithDrawPipelines key1,
    KeyOfApplyClearColorValueWithDrawPipelines key2) const { … }

ClearWithDrawHelper::ClearWithDrawHelper() = default;
ClearWithDrawHelper::~ClearWithDrawHelper() = default;

MaybeError ClearWithDrawHelper::Initialize(CommandEncoder* encoder,
                                           const RenderPassDescriptor* renderPassDescriptor) { … }

MaybeError ClearWithDrawHelper::Apply(RenderPassEncoder* renderPassEncoder) { … }

}  // namespace dawn::native