chromium/third_party/dawn/src/dawn/native/BindingInfo.h

// Copyright 2020 The Dawn & Tint Authors
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#ifndef SRC_DAWN_NATIVE_BINDINGINFO_H_
#define SRC_DAWN_NATIVE_BINDINGINFO_H_

#include <cstdint>
#include <variant>
#include <vector>

#include "dawn/common/Constants.h"
#include "dawn/common/Ref.h"
#include "dawn/common/ityp_array.h"
#include "dawn/native/Error.h"
#include "dawn/native/Format.h"
#include "dawn/native/IntegerTypes.h"
#include "dawn/native/PerStage.h"

#include "dawn/native/dawn_platform.h"

namespace dawn::native {

// Not a real WebGPU limit, but used to optimize parts of Dawn which expect valid usage of the
// API. There should never be more bindings than the max per stage, for each stage.
static constexpr uint32_t kMaxBindingsPerPipelineLayout = …;

static constexpr BindingIndex kMaxBindingsPerPipelineLayoutTyped = …;

// TODO(enga): Figure out a good number for this.
static constexpr uint32_t kMaxOptimalBindingsPerGroup = …;

enum class BindingInfoType { … };

// A mirror of wgpu::BufferBindingLayout for use inside dawn::native.
struct BufferBindingInfo { … };

// A mirror of wgpu::TextureBindingLayout for use inside dawn::native.
struct TextureBindingInfo { … };

// A mirror of wgpu::StorageTextureBindingLayout for use inside dawn::native.
struct StorageTextureBindingInfo { … };

// A mirror of wgpu::SamplerBindingLayout for use inside dawn::native.
struct SamplerBindingInfo { … };

// A mirror of wgpu::StaticSamplerBindingLayout for use inside dawn::native.
struct StaticSamplerBindingInfo { … };

// A mirror of wgpu::ExternalTextureBindingLayout for use inside dawn::native.
struct ExternalTextureBindingInfo { … };

// Internal to vulkan only.
struct InputAttachmentBindingInfo { … };

struct BindingInfo { … };

BindingInfoType GetBindingInfoType(const BindingInfo& bindingInfo);

struct BindingSlot { … };

struct PerStageBindingCounts { … };

struct BindingCounts { … };

struct CombinedLimits;

void IncrementBindingCounts(BindingCounts* bindingCounts,
                            const UnpackedPtr<BindGroupLayoutEntry>& entry);
void AccumulateBindingCounts(BindingCounts* bindingCounts, const BindingCounts& rhs);
MaybeError ValidateBindingCounts(const CombinedLimits& limits, const BindingCounts& bindingCounts);

// For buffer size validation
RequiredBufferSizes;

}  // namespace dawn::native

#endif  // SRC_DAWN_NATIVE_BINDINGINFO_H_