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// Copyright 2021 The Dawn & Tint Authors
//
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// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
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// 3. Neither the name of the copyright holder nor the names of its
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#ifndef SRC_TINT_LANG_WGSL_INSPECTOR_RESOURCE_BINDING_H_
#define SRC_TINT_LANG_WGSL_INSPECTOR_RESOURCE_BINDING_H_
#include <cstdint>
#include <string>
#include "src/tint/lang/core/texel_format.h"
#include "src/tint/lang/core/type/texture_dimension.h"
#include "src/tint/lang/core/type/type.h"
namespace tint::inspector {
/// Container for information about how a resource is bound
struct ResourceBinding {
/// The dimensionality of a texture
enum class TextureDimension : uint8_t {
/// 1 dimensional texture
k1d,
/// 2 dimensional texture
k2d,
/// 2 dimensional array texture
k2dArray,
/// 3 dimensional texture
k3d,
/// cube texture
kCube,
/// cube array texture
kCubeArray,
/// Invalid texture
kNone,
};
/// Component type of the texture's data. Same as the Sampled Type parameter
/// in SPIR-V OpTypeImage.
enum class SampledKind : uint8_t { kFloat, kUInt, kSInt, kUnknown };
/// Enumerator of texel image formats
enum class TexelFormat : uint8_t {
kBgra8Unorm,
kRgba8Unorm,
kRgba8Snorm,
kRgba8Uint,
kRgba8Sint,
kRgba16Uint,
kRgba16Sint,
kRgba16Float,
kR32Uint,
kR32Sint,
kR32Float,
kRg32Uint,
kRg32Sint,
kRg32Float,
kRgba32Uint,
kRgba32Sint,
kRgba32Float,
kR8Unorm,
kNone,
};
/// kXXX maps to entries returned by GetXXXResourceBindings call.
enum class ResourceType {
kUniformBuffer,
kStorageBuffer,
kReadOnlyStorageBuffer,
kSampler,
kComparisonSampler,
kSampledTexture,
kMultisampledTexture,
kWriteOnlyStorageTexture,
kReadOnlyStorageTexture,
kReadWriteStorageTexture,
kDepthTexture,
kDepthMultisampledTexture,
kExternalTexture,
kInputAttachment,
};
/// Type of resource that is bound.
ResourceType resource_type;
/// Bind group the binding belongs
uint32_t bind_group;
/// Identifier to identify this binding within the bind group
uint32_t binding;
/// Input attachment index. Only available for input attachments.
uint32_t input_attachmnt_index;
/// Size for this binding, in bytes, if defined.
uint64_t size;
/// Size for this binding without trailing structure padding, in bytes, if
/// defined.
uint64_t size_no_padding;
/// Dimensionality of this binding, if defined.
TextureDimension dim;
/// Kind of data being sampled, if defined.
SampledKind sampled_kind;
/// Format of data, if defined.
TexelFormat image_format;
/// Variable name of the binding.
std::string variable_name;
};
/// Convert from internal core::type::TextureDimension to public
/// ResourceBinding::TextureDimension
/// @param type_dim internal value to convert from
/// @returns the publicly visible equivalent
ResourceBinding::TextureDimension TypeTextureDimensionToResourceBindingTextureDimension(
const core::type::TextureDimension& type_dim);
/// Infer ResourceBinding::SampledKind for a given core::type::Type
/// @param base_type internal type to infer from
/// @returns the publicly visible equivalent
ResourceBinding::SampledKind BaseTypeToSampledKind(const core::type::Type* base_type);
/// Convert from internal core::TexelFormat to public
/// ResourceBinding::TexelFormat
/// @param image_format internal value to convert from
/// @returns the publicly visible equivalent
ResourceBinding::TexelFormat TypeTexelFormatToResourceBindingTexelFormat(
const core::TexelFormat& image_format);
} // namespace tint::inspector
#endif // SRC_TINT_LANG_WGSL_INSPECTOR_RESOURCE_BINDING_H_