types

package
v0.10.3 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Jan 28, 2026 License: MIT Imports: 1 Imported by: 0

Documentation

Overview

Package types defines WebGPU types that are backend-agnostic.

This package is a pure Go port of wgpu-types from the Rust wgpu project. It provides the fundamental types used by WebGPU:

  • Backend and adapter types (BackendType, AdapterInfo)
  • Resource types (Buffer, Texture, Sampler)
  • Pipeline types (BindGroup, Pipeline, RenderPass)
  • Descriptor types (BufferDescriptor, TextureDescriptor, etc.)
  • Enums and constants (TextureFormat, CompareFunction, etc.)

These types are designed to be serializable and can be used for:

  • Shader reflection
  • Resource management
  • State tracking
  • Configuration

Reference: https://github.com/gfx-rs/wgpu/tree/trunk/wgpu-types

Index

Constants

View Source 
const (
	// BackendsVulkan includes Vulkan.
	BackendsVulkan Backends = 1 << BackendVulkan
	// BackendsMetal includes Metal.
	BackendsMetal Backends = 1 << BackendMetal
	// BackendsDX12 includes DirectX 12.
	BackendsDX12 Backends = 1 << BackendDX12
	// BackendsGL includes OpenGL.
	BackendsGL Backends = 1 << BackendGL
	// BackendsBrowserWebGPU includes browser WebGPU.
	BackendsBrowserWebGPU Backends = 1 << BackendBrowserWebGPU

	// BackendsPrimary includes Vulkan, Metal, DX12, and browser WebGPU.
	BackendsPrimary = BackendsVulkan | BackendsMetal | BackendsDX12 | BackendsBrowserWebGPU
	// BackendsSecondary includes only GL (fallback).
	BackendsSecondary = BackendsGL
	// BackendsAll includes all backends.
	BackendsAll = BackendsPrimary | BackendsSecondary
)
View Source 
const (
	// ShaderStagesVertexFragment includes vertex and fragment.
	ShaderStagesVertexFragment = ShaderStageVertex | ShaderStageFragment
	// ShaderStagesAll includes all stages.
	ShaderStagesAll = ShaderStageVertex | ShaderStageFragment | ShaderStageCompute
)

Variables

View Source 
var (
	ColorTransparent = Color{0, 0, 0, 0}
	ColorBlack       = Color{0, 0, 0, 1}
	ColorWhite       = Color{1, 1, 1, 1}
	ColorRed         = Color{1, 0, 0, 1}
	ColorGreen       = Color{0, 1, 0, 1}
	ColorBlue        = Color{0, 0, 1, 1}
)

PredefinedColors

Functions

This section is empty.

Types

type AdapterInfo 

type AdapterInfo struct {
	// Name is the name of the adapter (e.g., "NVIDIA GeForce RTX 3080").
	Name string
	// Vendor is the adapter vendor (e.g., "NVIDIA").
	Vendor string
	// VendorID is the PCI vendor ID.
	VendorID uint32
	// DeviceID is the PCI device ID.
	DeviceID uint32
	// DeviceType indicates the type of GPU.
	DeviceType DeviceType
	// Driver is the driver version.
	Driver string
	// DriverInfo is additional driver information.
	DriverInfo string
	// Backend is the graphics backend in use.
	Backend Backend
}

AdapterInfo contains information about a GPU adapter.

type AddressMode 

type AddressMode uint8

AddressMode describes texture coordinate addressing. 

const (
	// AddressModeClampToEdge clamps to the edge texel.
	AddressModeClampToEdge AddressMode = iota
	// AddressModeRepeat repeats the texture.
	AddressModeRepeat
	// AddressModeMirrorRepeat repeats with mirroring.
	AddressModeMirrorRepeat
)

type Backend 

type Backend uint8

Backend identifies the GPU backend. 

const (
	// BackendEmpty represents no backend (invalid state).
	BackendEmpty Backend = iota
	// BackendVulkan uses the Vulkan API (cross-platform).
	BackendVulkan
	// BackendMetal uses Apple's Metal API (macOS, iOS).
	BackendMetal
	// BackendDX12 uses Microsoft DirectX 12 (Windows).
	BackendDX12
	// BackendGL uses OpenGL/OpenGL ES (legacy fallback).
	BackendGL
	// BackendBrowserWebGPU uses the browser's native WebGPU (WASM).
	BackendBrowserWebGPU
)

func (Backend) String 

func (b Backend) String() string

String returns the backend name.

type Backends 

type Backends uint8

Backends is a set of backends.

func (Backends) Contains 

func (b Backends) Contains(backend Backend) bool

Contains checks if the backend set contains a specific backend.

type BindGroupDescriptor 

type BindGroupDescriptor struct {
	// Label is a debug label.
	Label string
	// Layout is the bind group layout.
	Layout BindGroupLayoutHandle
	// Entries are the bind group entries.
	Entries []BindGroupEntry
}

BindGroupDescriptor describes a bind group.

type BindGroupEntry 

type BindGroupEntry struct {
	// Binding is the binding number.
	Binding uint32
	// Resource is the bound resource.
	Resource BindingResource
}

BindGroupEntry describes a single binding in a bind group.

type BindGroupLayoutDescriptor 

type BindGroupLayoutDescriptor struct {
	// Label is a debug label.
	Label string
	// Entries are the layout entries.
	Entries []BindGroupLayoutEntry
}

BindGroupLayoutDescriptor describes a bind group layout.

type BindGroupLayoutEntry 

type BindGroupLayoutEntry struct {
	// Binding is the binding number.
	Binding uint32
	// Visibility specifies which shader stages can access this binding.
	Visibility ShaderStages
	// Type describes the binding type (one of the following must be set).
	Buffer  *BufferBindingLayout
	Sampler *SamplerBindingLayout
	Texture *TextureBindingLayout
	Storage *StorageTextureBindingLayout
}

BindGroupLayoutEntry describes a single binding in a bind group layout.

type BindGroupLayoutHandle 

type BindGroupLayoutHandle uint64

Handle types for bind resources.

type BindingResource 

type BindingResource interface {
	// contains filtered or unexported methods
}

BindingResource is a resource that can be bound.

type BlendComponent 

type BlendComponent struct {
	// SrcFactor is the source blend factor.
	SrcFactor BlendFactor
	// DstFactor is the destination blend factor.
	DstFactor BlendFactor
	// Operation is the blend operation.
	Operation BlendOperation
}

BlendComponent describes blending for a single color component.

type BlendFactor 

type BlendFactor uint8

BlendFactor describes a blend factor. 

const (
	BlendFactorZero BlendFactor = iota
	BlendFactorOne
	BlendFactorSrc
	BlendFactorOneMinusSrc
	BlendFactorSrcAlpha
	BlendFactorOneMinusSrcAlpha
	BlendFactorDst
	BlendFactorOneMinusDst
	BlendFactorDstAlpha
	BlendFactorOneMinusDstAlpha
	BlendFactorSrcAlphaSaturated
	BlendFactorConstant
	BlendFactorOneMinusConstant
)

type BlendOperation 

type BlendOperation uint8

BlendOperation describes a blend operation. 

const (
	BlendOperationAdd BlendOperation = iota
	BlendOperationSubtract
	BlendOperationReverseSubtract
	BlendOperationMin
	BlendOperationMax
)

type BlendState 

type BlendState struct {
	// Color describes color channel blending.
	Color BlendComponent
	// Alpha describes alpha channel blending.
	Alpha BlendComponent
}

BlendState describes color blending.

type BufferBinding 

type BufferBinding struct {
	// Buffer is the buffer handle.
	Buffer BufferHandle
	// Offset is the byte offset into the buffer.
	Offset uint64
	// Size is the byte size of the binding (0 for entire buffer).
	Size uint64
}

BufferBinding binds a buffer range.

type BufferBindingLayout 

type BufferBindingLayout struct {
	// Type is the buffer binding type.
	Type BufferBindingType
	// HasDynamicOffset indicates if the buffer has a dynamic offset.
	HasDynamicOffset bool
	// MinBindingSize is the minimum buffer size required.
	MinBindingSize uint64
}

BufferBindingLayout describes a buffer binding.

type BufferBindingType 

type BufferBindingType uint8

BufferBindingType describes how a buffer is bound. 

const (
	// BufferBindingTypeUndefined is an undefined binding type.
	BufferBindingTypeUndefined BufferBindingType = iota
	// BufferBindingTypeUniform binds as a uniform buffer.
	BufferBindingTypeUniform
	// BufferBindingTypeStorage binds as a storage buffer (read-write).
	BufferBindingTypeStorage
	// BufferBindingTypeReadOnlyStorage binds as a read-only storage buffer.
	BufferBindingTypeReadOnlyStorage
)

type BufferDescriptor 

type BufferDescriptor struct {
	// Label is a debug label.
	Label string
	// Size is the buffer size in bytes.
	Size uint64
	// Usage describes how the buffer will be used.
	Usage BufferUsage
	// MappedAtCreation indicates if the buffer is mapped at creation.
	MappedAtCreation bool
}

BufferDescriptor describes a buffer.

type BufferHandle 

type BufferHandle uint64

Handle types for bind resources.

type BufferMapState 

type BufferMapState uint8

BufferMapState describes the map state of a buffer. 

const (
	// BufferMapStateUnmapped means the buffer is not mapped.
	BufferMapStateUnmapped BufferMapState = iota
	// BufferMapStatePending means a map operation is pending.
	BufferMapStatePending
	// BufferMapStateMapped means the buffer is mapped.
	BufferMapStateMapped
)

type BufferUsage 

type BufferUsage uint32

BufferUsage describes how a buffer can be used. 

const (
	// BufferUsageMapRead allows mapping the buffer for reading.
	BufferUsageMapRead BufferUsage = 1 << iota
	// BufferUsageMapWrite allows mapping the buffer for writing.
	BufferUsageMapWrite
	// BufferUsageCopySrc allows the buffer to be a copy source.
	BufferUsageCopySrc
	// BufferUsageCopyDst allows the buffer to be a copy destination.
	BufferUsageCopyDst
	// BufferUsageIndex allows use as an index buffer.
	BufferUsageIndex
	// BufferUsageVertex allows use as a vertex buffer.
	BufferUsageVertex
	// BufferUsageUniform allows use as a uniform buffer.
	BufferUsageUniform
	// BufferUsageStorage allows use as a storage buffer.
	BufferUsageStorage
	// BufferUsageIndirect allows use for indirect draw/dispatch.
	BufferUsageIndirect
	// BufferUsageQueryResolve allows use for query result resolution.
	BufferUsageQueryResolve
)

func (BufferUsage) Contains added in v0.9.0 

func (u BufferUsage) Contains(flag BufferUsage) bool

Contains returns true if the usage includes the given flag.

func (BufferUsage) ContainsUnknownBits added in v0.9.0 

func (u BufferUsage) ContainsUnknownBits() bool

ContainsUnknownBits returns true if the usage contains any unknown flags.

type Color 

type Color struct {
	R, G, B, A float64
}

Color represents an RGBA color.

type ColorTargetState 

type ColorTargetState struct {
	// Format is the texture format.
	Format TextureFormat
	// Blend describes color blending (nil for no blending).
	Blend *BlendState
	// WriteMask specifies which channels to write.
	WriteMask ColorWriteMask
}

ColorTargetState describes a color target in a render pipeline.

type ColorWriteMask 

type ColorWriteMask uint8

ColorWriteMask describes which color channels to write. 

const (
	ColorWriteMaskRed ColorWriteMask = 1 << iota
	ColorWriteMaskGreen
	ColorWriteMaskBlue
	ColorWriteMaskAlpha
	ColorWriteMaskAll = ColorWriteMaskRed | ColorWriteMaskGreen | ColorWriteMaskBlue | ColorWriteMaskAlpha
)

type CompareFunction 

type CompareFunction uint8

CompareFunction describes a comparison function. 

const (
	// CompareFunctionUndefined is undefined (no comparison).
	CompareFunctionUndefined CompareFunction = iota
	// CompareFunctionNever always fails.
	CompareFunctionNever
	// CompareFunctionLess passes if source < destination.
	CompareFunctionLess
	// CompareFunctionEqual passes if source == destination.
	CompareFunctionEqual
	// CompareFunctionLessEqual passes if source <= destination.
	CompareFunctionLessEqual
	// CompareFunctionGreater passes if source > destination.
	CompareFunctionGreater
	// CompareFunctionNotEqual passes if source != destination.
	CompareFunctionNotEqual
	// CompareFunctionGreaterEqual passes if source >= destination.
	CompareFunctionGreaterEqual
	// CompareFunctionAlways always passes.
	CompareFunctionAlways
)

type CullMode 

type CullMode uint8

CullMode describes which faces to cull. 

const (
	CullModeNone CullMode = iota
	CullModeFront
	CullModeBack
)

type DeviceDescriptor 

type DeviceDescriptor struct {
	// Label is a debug label for the device.
	Label string
	// RequiredFeatures lists features the device must support.
	RequiredFeatures []Feature
	// RequiredLimits specifies limits the device must meet.
	RequiredLimits Limits
	// MemoryHints provides memory allocation hints.
	MemoryHints MemoryHints
}

DeviceDescriptor describes how to create a device.

func DefaultDeviceDescriptor 

func DefaultDeviceDescriptor() DeviceDescriptor

DefaultDeviceDescriptor returns the default device descriptor.

type DeviceType 

type DeviceType uint8

DeviceType identifies the type of GPU device. 

const (
	// DeviceTypeOther is an unknown or other device type.
	DeviceTypeOther DeviceType = iota
	// DeviceTypeIntegratedGPU is integrated into the CPU (shared memory).
	DeviceTypeIntegratedGPU
	// DeviceTypeDiscreteGPU is a separate GPU with dedicated memory.
	DeviceTypeDiscreteGPU
	// DeviceTypeVirtualGPU is a virtual GPU (e.g., in a VM).
	DeviceTypeVirtualGPU
	// DeviceTypeCPU is software rendering on the CPU.
	DeviceTypeCPU
)

func (DeviceType) String 

func (d DeviceType) String() string

String returns the device type name.

type Dx12ShaderCompiler 

type Dx12ShaderCompiler uint8

Dx12ShaderCompiler specifies the shader compiler for DX12. 

const (
	// Dx12ShaderCompilerFxc uses the legacy FXC compiler.
	Dx12ShaderCompilerFxc Dx12ShaderCompiler = iota
	// Dx12ShaderCompilerDxc uses the modern DXC compiler.
	Dx12ShaderCompilerDxc
)

type Extent3D 

type Extent3D struct {
	// Width is the size in the X dimension.
	Width uint32
	// Height is the size in the Y dimension.
	Height uint32
	// DepthOrArrayLayers is the size in Z or array layer count.
	DepthOrArrayLayers uint32
}

Extent3D describes a 3D size.

type Feature 

type Feature uint64

Feature represents a WebGPU feature flag. 

const (
	// FeatureDepthClipControl enables depth clip control.
	FeatureDepthClipControl Feature = 1 << iota
	// FeatureDepth32FloatStencil8 enables depth32float-stencil8 format.
	FeatureDepth32FloatStencil8
	// FeatureTextureCompressionBC enables BC texture compression.
	FeatureTextureCompressionBC
	// FeatureTextureCompressionETC2 enables ETC2 texture compression.
	FeatureTextureCompressionETC2
	// FeatureTextureCompressionASTC enables ASTC texture compression.
	FeatureTextureCompressionASTC
	// FeatureIndirectFirstInstance enables indirect draw first instance.
	FeatureIndirectFirstInstance
	// FeatureShaderF16 enables f16 in shaders.
	FeatureShaderF16
	// FeatureRG11B10UfloatRenderable enables RG11B10Ufloat as render target.
	FeatureRG11B10UfloatRenderable
	// FeatureBGRA8UnormStorage enables BGRA8Unorm as storage texture.
	FeatureBGRA8UnormStorage
	// FeatureFloat32Filterable enables filtering of float32 textures.
	FeatureFloat32Filterable
	// FeatureTimestampQuery enables timestamp queries.
	FeatureTimestampQuery
	// FeaturePipelineStatisticsQuery enables pipeline statistics queries.
	FeaturePipelineStatisticsQuery
	// FeatureMultiDrawIndirect enables multi-draw indirect commands.
	FeatureMultiDrawIndirect
	// FeatureMultiDrawIndirectCount enables multi-draw indirect count.
	FeatureMultiDrawIndirectCount
	// FeaturePushConstants enables push constants.
	FeaturePushConstants
	// FeatureTextureAdapterSpecificFormatFeatures enables adapter-specific formats.
	FeatureTextureAdapterSpecificFormatFeatures
	// FeatureShaderFloat64 enables f64 in shaders.
	FeatureShaderFloat64
	// FeatureVertexAttribute64bit enables 64-bit vertex attributes.
	FeatureVertexAttribute64bit
	// FeatureSubgroupOperations enables subgroup operations in shaders.
	FeatureSubgroupOperations
	// FeatureSubgroupBarrier enables subgroup barriers.
	FeatureSubgroupBarrier
)

type Features 

type Features uint64

Features is a set of feature flags.

func (Features) Contains 

func (f Features) Contains(feature Feature) bool

Contains checks if the feature set contains a specific feature.

func (Features) ContainsAll 

func (f Features) ContainsAll(other Features) bool

ContainsAll checks if the feature set contains all specified features.

func (*Features) Insert 

func (f *Features) Insert(feature Feature)

Insert adds a feature to the set.

func (Features) Intersect 

func (f Features) Intersect(other Features) Features

Intersect returns features common to both sets.

func (*Features) Remove 

func (f *Features) Remove(feature Feature)

Remove removes a feature from the set.

func (Features) Union 

func (f Features) Union(other Features) Features

Union returns all features from both sets.

type FilterMode 

type FilterMode uint8

FilterMode describes texture filtering. 

const (
	// FilterModeNearest uses nearest-neighbor filtering.
	FilterModeNearest FilterMode = iota
	// FilterModeLinear uses linear interpolation.
	FilterModeLinear
)

type FrontFace 

type FrontFace uint8

FrontFace describes the front face winding order. 

const (
	FrontFaceCCW FrontFace = iota
	FrontFaceCW
)

type GlBackend 

type GlBackend uint8

GlBackend specifies the OpenGL backend flavor. 

const (
	// GlBackendGL uses desktop OpenGL.
	GlBackendGL GlBackend = iota
	// GlBackendGLES uses OpenGL ES.
	GlBackendGLES
)

type ImageCopyTexture 

type ImageCopyTexture struct {
	// Texture is the texture to copy to/from.
	Texture uintptr // TextureID as uintptr for now
	// MipLevel is the mip level to copy.
	MipLevel uint32
	// Origin is the origin of the copy in the texture.
	Origin Origin3D
	// Aspect is the aspect of the texture to copy.
	Aspect TextureAspect
}

ImageCopyTexture describes a texture copy target.

type IndexFormat 

type IndexFormat uint8

IndexFormat describes the format of index buffer data. 

const (
	// IndexFormatUint16 uses 16-bit unsigned integers.
	IndexFormatUint16 IndexFormat = iota
	// IndexFormatUint32 uses 32-bit unsigned integers.
	IndexFormatUint32
)

type InstanceDescriptor 

type InstanceDescriptor struct {
	// Backends specifies which backends to enable.
	Backends Backends
	// Flags controls instance behavior.
	Flags InstanceFlags
	// Dx12ShaderCompiler specifies the DX12 shader compiler.
	Dx12ShaderCompiler Dx12ShaderCompiler
	// GlBackend specifies the OpenGL backend flavor.
	GlBackend GlBackend
}

InstanceDescriptor describes how to create a GPU instance.

func DefaultInstanceDescriptor 

func DefaultInstanceDescriptor() InstanceDescriptor

DefaultInstanceDescriptor returns the default instance descriptor.

type InstanceFlags 

type InstanceFlags uint8

InstanceFlags controls instance behavior. 

const (
	// InstanceFlagsDebug enables debug layers when available.
	InstanceFlagsDebug InstanceFlags = 1 << iota
	// InstanceFlagsValidation enables validation layers.
	InstanceFlagsValidation
	// InstanceFlagsGPUBasedValidation enables GPU-based validation (slower).
	InstanceFlagsGPUBasedValidation
	// InstanceFlagsDiscardHalLabels discards HAL labels.
	InstanceFlagsDiscardHalLabels
)

type Limits 

type Limits struct {
	// MaxTextureDimension1D is the maximum 1D texture dimension.
	MaxTextureDimension1D uint32
	// MaxTextureDimension2D is the maximum 2D texture dimension.
	MaxTextureDimension2D uint32
	// MaxTextureDimension3D is the maximum 3D texture dimension.
	MaxTextureDimension3D uint32
	// MaxTextureArrayLayers is the maximum texture array layers.
	MaxTextureArrayLayers uint32
	// MaxBindGroups is the maximum number of bind groups.
	MaxBindGroups uint32
	// MaxBindGroupsPlusVertexBuffers is the max bind groups + vertex buffers.
	MaxBindGroupsPlusVertexBuffers uint32
	// MaxBindingsPerBindGroup is the max bindings per bind group.
	MaxBindingsPerBindGroup uint32
	// MaxDynamicUniformBuffersPerPipelineLayout is the max dynamic uniform buffers.
	MaxDynamicUniformBuffersPerPipelineLayout uint32
	// MaxDynamicStorageBuffersPerPipelineLayout is the max dynamic storage buffers.
	MaxDynamicStorageBuffersPerPipelineLayout uint32
	// MaxSampledTexturesPerShaderStage is the max sampled textures per stage.
	MaxSampledTexturesPerShaderStage uint32
	// MaxSamplersPerShaderStage is the max samplers per stage.
	MaxSamplersPerShaderStage uint32
	// MaxStorageBuffersPerShaderStage is the max storage buffers per stage.
	MaxStorageBuffersPerShaderStage uint32
	// MaxStorageTexturesPerShaderStage is the max storage textures per stage.
	MaxStorageTexturesPerShaderStage uint32
	// MaxUniformBuffersPerShaderStage is the max uniform buffers per stage.
	MaxUniformBuffersPerShaderStage uint32
	// MaxUniformBufferBindingSize is the max uniform buffer binding size.
	MaxUniformBufferBindingSize uint64
	// MaxStorageBufferBindingSize is the max storage buffer binding size.
	MaxStorageBufferBindingSize uint64
	// MinUniformBufferOffsetAlignment is the min uniform buffer offset alignment.
	MinUniformBufferOffsetAlignment uint32
	// MinStorageBufferOffsetAlignment is the min storage buffer offset alignment.
	MinStorageBufferOffsetAlignment uint32
	// MaxVertexBuffers is the max vertex buffers.
	MaxVertexBuffers uint32
	// MaxBufferSize is the max buffer size.
	MaxBufferSize uint64
	// MaxVertexAttributes is the max vertex attributes.
	MaxVertexAttributes uint32
	// MaxVertexBufferArrayStride is the max vertex buffer array stride.
	MaxVertexBufferArrayStride uint32
	// MaxInterStageShaderVariables is the max inter-stage shader variables.
	MaxInterStageShaderVariables uint32
	// MaxColorAttachments is the max color attachments.
	MaxColorAttachments uint32
	// MaxColorAttachmentBytesPerSample is the max bytes per sample for color.
	MaxColorAttachmentBytesPerSample uint32
	// MaxComputeWorkgroupStorageSize is the max compute workgroup storage.
	MaxComputeWorkgroupStorageSize uint32
	// MaxComputeInvocationsPerWorkgroup is the max compute invocations per group.
	MaxComputeInvocationsPerWorkgroup uint32
	// MaxComputeWorkgroupSizeX is the max compute workgroup size X.
	MaxComputeWorkgroupSizeX uint32
	// MaxComputeWorkgroupSizeY is the max compute workgroup size Y.
	MaxComputeWorkgroupSizeY uint32
	// MaxComputeWorkgroupSizeZ is the max compute workgroup size Z.
	MaxComputeWorkgroupSizeZ uint32
	// MaxComputeWorkgroupsPerDimension is the max compute workgroups per dimension.
	MaxComputeWorkgroupsPerDimension uint32
	// MaxPushConstantSize is the max push constant size.
	MaxPushConstantSize uint32
	// MaxNonSamplerBindings is the max non-sampler bindings.
	MaxNonSamplerBindings uint32
}

Limits describes the GPU resource limits.

func DefaultLimits 

func DefaultLimits() Limits

DefaultLimits returns the default WebGPU limits.

func DownlevelLimits 

func DownlevelLimits() Limits

DownlevelLimits returns more conservative limits for older hardware.

type LoadOp 

type LoadOp uint8

LoadOp describes the load operation for an attachment. 

const (
	// LoadOpClear clears the attachment.
	LoadOpClear LoadOp = iota
	// LoadOpLoad loads the existing contents.
	LoadOpLoad
)

type MapMode 

type MapMode uint8

MapMode describes the access mode for buffer mapping. 

const (
	// MapModeRead maps the buffer for reading.
	MapModeRead MapMode = 1 << iota
	// MapModeWrite maps the buffer for writing.
	MapModeWrite
)

type MemoryHints 

type MemoryHints uint8

MemoryHints provides memory allocation hints. 

const (
	// MemoryHintsPerformance optimizes for performance.
	MemoryHintsPerformance MemoryHints = iota
	// MemoryHintsMemoryUsage optimizes for low memory usage.
	MemoryHintsMemoryUsage
)

type MipmapFilterMode 

type MipmapFilterMode uint8

MipmapFilterMode describes mipmap filtering. 

const (
	// MipmapFilterModeNearest selects the nearest mip level.
	MipmapFilterModeNearest MipmapFilterMode = iota
	// MipmapFilterModeLinear interpolates between mip levels.
	MipmapFilterModeLinear
)

type MultisampleState 

type MultisampleState struct {
	// Count is the number of samples.
	Count uint32
	// Mask is the sample mask.
	Mask uint64
	// AlphaToCoverageEnabled enables alpha-to-coverage.
	AlphaToCoverageEnabled bool
}

MultisampleState describes multisampling.

func DefaultMultisampleState 

func DefaultMultisampleState() MultisampleState

DefaultMultisampleState returns the default multisample state.

type Origin3D 

type Origin3D struct {
	// X is the X coordinate.
	X uint32
	// Y is the Y coordinate.
	Y uint32
	// Z is the Z coordinate.
	Z uint32
}

Origin3D describes a 3D origin.

type PipelineLayoutDescriptor 

type PipelineLayoutDescriptor struct {
	// Label is a debug label.
	Label string
	// BindGroupLayouts are the bind group layouts.
	BindGroupLayouts []BindGroupLayoutHandle
	// PushConstantRanges describe push constant ranges.
	PushConstantRanges []PushConstantRange
}

PipelineLayoutDescriptor describes a pipeline layout.

type PowerPreference 

type PowerPreference uint8

PowerPreference specifies power consumption preference. 

const (
	// PowerPreferenceNone has no preference.
	PowerPreferenceNone PowerPreference = iota
	// PowerPreferenceLowPower prefers low power consumption (integrated GPU).
	PowerPreferenceLowPower
	// PowerPreferenceHighPerformance prefers high performance (discrete GPU).
	PowerPreferenceHighPerformance
)

type PrimitiveState 

type PrimitiveState struct {
	// Topology is the primitive topology.
	Topology PrimitiveTopology
	// StripIndexFormat is the index format for strip topologies.
	StripIndexFormat *IndexFormat
	// FrontFace is the front face winding.
	FrontFace FrontFace
	// CullMode specifies which faces to cull.
	CullMode CullMode
	// UnclippedDepth enables unclipped depth.
	UnclippedDepth bool
}

PrimitiveState describes primitive assembly.

type PrimitiveTopology 

type PrimitiveTopology uint8

PrimitiveTopology describes how vertices form primitives. 

const (
	PrimitiveTopologyPointList PrimitiveTopology = iota
	PrimitiveTopologyLineList
	PrimitiveTopologyLineStrip
	PrimitiveTopologyTriangleList
	PrimitiveTopologyTriangleStrip
)

type ProgrammableStage 

type ProgrammableStage struct {
	// EntryPoint is the entry point function name.
	EntryPoint string
	// Constants are pipeline-overridable constants.
	Constants map[string]float64
}

ProgrammableStage describes a programmable shader stage.

type PushConstantRange 

type PushConstantRange struct {
	// Stages are the shader stages that can access this range.
	Stages ShaderStages
	// Start is the start offset in bytes.
	Start uint32
	// End is the end offset in bytes.
	End uint32
}

PushConstantRange describes a push constant range.

type QuerySetHandle 

type QuerySetHandle uint64

QuerySetHandle is a handle to a query set.

type RenderPassColorAttachment 

type RenderPassColorAttachment struct {
	// View is the texture view to render to.
	View TextureViewHandle
	// ResolveTarget is the texture view for multisample resolve.
	ResolveTarget *TextureViewHandle
	// LoadOp describes how to load the attachment.
	LoadOp LoadOp
	// StoreOp describes how to store the attachment.
	StoreOp StoreOp
	// ClearValue is the clear color.
	ClearValue Color
}

RenderPassColorAttachment describes a color attachment.

type RenderPassDepthStencilAttachment 

type RenderPassDepthStencilAttachment struct {
	// View is the texture view.
	View TextureViewHandle
	// DepthLoadOp describes how to load depth.
	DepthLoadOp LoadOp
	// DepthStoreOp describes how to store depth.
	DepthStoreOp StoreOp
	// DepthClearValue is the clear depth value.
	DepthClearValue float32
	// DepthReadOnly indicates if depth is read-only.
	DepthReadOnly bool
	// StencilLoadOp describes how to load stencil.
	StencilLoadOp LoadOp
	// StencilStoreOp describes how to store stencil.
	StencilStoreOp StoreOp
	// StencilClearValue is the clear stencil value.
	StencilClearValue uint32
	// StencilReadOnly indicates if stencil is read-only.
	StencilReadOnly bool
}

RenderPassDepthStencilAttachment describes a depth-stencil attachment.

type RenderPassDescriptor 

type RenderPassDescriptor struct {
	// Label is a debug label.
	Label string
	// ColorAttachments are the color attachments.
	ColorAttachments []RenderPassColorAttachment
	// DepthStencilAttachment is the depth-stencil attachment.
	DepthStencilAttachment *RenderPassDepthStencilAttachment
	// OcclusionQuerySet is the occlusion query set.
	OcclusionQuerySet QuerySetHandle
	// TimestampWrites describe timestamp queries.
	TimestampWrites *RenderPassTimestampWrites
}

RenderPassDescriptor describes a render pass.

type RenderPassTimestampWrites 

type RenderPassTimestampWrites struct {
	// QuerySet is the query set for timestamps.
	QuerySet QuerySetHandle
	// BeginningOfPassWriteIndex is the index for start timestamp.
	BeginningOfPassWriteIndex *uint32
	// EndOfPassWriteIndex is the index for end timestamp.
	EndOfPassWriteIndex *uint32
}

RenderPassTimestampWrites describes timestamp writes.

type RequestAdapterOptions 

type RequestAdapterOptions struct {
	// PowerPreference indicates power consumption preference.
	PowerPreference PowerPreference
	// ForceFallbackAdapter forces the use of a fallback adapter.
	ForceFallbackAdapter bool
	// CompatibleSurface is an optional surface the adapter must support.
	CompatibleSurface *Surface
}

RequestAdapterOptions controls adapter selection.

type SamplerBinding 

type SamplerBinding struct {
	// Sampler is the sampler handle.
	Sampler SamplerHandle
}

SamplerBinding binds a sampler.

type SamplerBindingLayout 

type SamplerBindingLayout struct {
	// Type is the sampler binding type.
	Type SamplerBindingType
}

SamplerBindingLayout describes a sampler binding.

type SamplerBindingType 

type SamplerBindingType uint8

SamplerBindingType describes how a sampler is bound. 

const (
	// SamplerBindingTypeUndefined is undefined.
	SamplerBindingTypeUndefined SamplerBindingType = iota
	// SamplerBindingTypeFiltering supports filtering.
	SamplerBindingTypeFiltering
	// SamplerBindingTypeNonFiltering does not filter.
	SamplerBindingTypeNonFiltering
	// SamplerBindingTypeComparison is for depth comparison.
	SamplerBindingTypeComparison
)

type SamplerDescriptor 

type SamplerDescriptor struct {
	// Label is a debug label.
	Label string
	// AddressModeU is the U coordinate addressing mode.
	AddressModeU AddressMode
	// AddressModeV is the V coordinate addressing mode.
	AddressModeV AddressMode
	// AddressModeW is the W coordinate addressing mode.
	AddressModeW AddressMode
	// MagFilter is the magnification filter.
	MagFilter FilterMode
	// MinFilter is the minification filter.
	MinFilter FilterMode
	// MipmapFilter is the mipmap filter.
	MipmapFilter MipmapFilterMode
	// LodMinClamp is the minimum level of detail.
	LodMinClamp float32
	// LodMaxClamp is the maximum level of detail.
	LodMaxClamp float32
	// Compare is the comparison function for depth sampling.
	Compare CompareFunction
	// MaxAnisotropy is the max anisotropy level (1-16).
	MaxAnisotropy uint16
}

SamplerDescriptor describes a sampler.

func DefaultSamplerDescriptor 

func DefaultSamplerDescriptor() SamplerDescriptor

DefaultSamplerDescriptor returns the default sampler descriptor.

type SamplerHandle 

type SamplerHandle uint64

Handle types for bind resources.

type ShaderModuleDescriptor 

type ShaderModuleDescriptor struct {
	// Label is a debug label.
	Label string
	// Source is the shader source (WGSL, SPIR-V, etc.).
	Source ShaderSource
}

ShaderModuleDescriptor describes a shader module.

type ShaderSource 

type ShaderSource interface {
	// contains filtered or unexported methods
}

ShaderSource represents shader source code.

type ShaderSourceGLSL 

type ShaderSourceGLSL struct {
	// Code is the GLSL source code.
	Code string
	// Stage is the shader stage.
	Stage ShaderStage
	// Defines is a map of preprocessor defines.
	Defines map[string]string
}

ShaderSourceGLSL is GLSL shader source.

type ShaderSourceSPIRV 

type ShaderSourceSPIRV struct {
	// Code is the SPIR-V bytecode.
	Code []uint32
}

ShaderSourceSPIRV is SPIR-V shader source.

type ShaderSourceWGSL 

type ShaderSourceWGSL struct {
	// Code is the WGSL source code.
	Code string
}

ShaderSourceWGSL is WGSL shader source.

type ShaderStage 

type ShaderStage uint8

ShaderStage represents a shader stage. 

const (
	// ShaderStageNone represents no shader stage.
	ShaderStageNone ShaderStage = 0
	// ShaderStageVertex is the vertex shader stage.
	ShaderStageVertex ShaderStage = 1 << iota
	// ShaderStageFragment is the fragment shader stage.
	ShaderStageFragment
	// ShaderStageCompute is the compute shader stage.
	ShaderStageCompute
)

type ShaderStages 

type ShaderStages = ShaderStage

ShaderStages is a combination of shader stages.

type StorageTextureAccess 

type StorageTextureAccess uint8

StorageTextureAccess describes storage texture access mode. 

const (
	// StorageTextureAccessWriteOnly allows write-only access.
	StorageTextureAccessWriteOnly StorageTextureAccess = iota
	// StorageTextureAccessReadOnly allows read-only access.
	StorageTextureAccessReadOnly
	// StorageTextureAccessReadWrite allows read-write access.
	StorageTextureAccessReadWrite
)

type StorageTextureBindingLayout 

type StorageTextureBindingLayout struct {
	// Access specifies the storage texture access mode.
	Access StorageTextureAccess
	// Format is the texture format.
	Format TextureFormat
	// ViewDimension is the texture view dimension.
	ViewDimension TextureViewDimension
}

StorageTextureBindingLayout describes a storage texture binding.

type StoreOp 

type StoreOp uint8

StoreOp describes the store operation for an attachment. 

const (
	// StoreOpDiscard discards the contents.
	StoreOpDiscard StoreOp = iota
	// StoreOpStore stores the contents.
	StoreOpStore
)

type Surface 

type Surface struct {
	// Handle is platform-specific surface handle.
	Handle uintptr
}

Surface represents a window surface (placeholder).

type TextureAspect 

type TextureAspect uint8

TextureAspect describes which aspects of a texture to access. 

const (
	// TextureAspectAll accesses all aspects.
	TextureAspectAll TextureAspect = iota
	// TextureAspectStencilOnly accesses only stencil.
	TextureAspectStencilOnly
	// TextureAspectDepthOnly accesses only depth.
	TextureAspectDepthOnly
)

type TextureBindingLayout 

type TextureBindingLayout struct {
	// SampleType is the texture sample type.
	SampleType TextureSampleType
	// ViewDimension is the texture view dimension.
	ViewDimension TextureViewDimension
	// Multisampled indicates if the texture is multisampled.
	Multisampled bool
}

TextureBindingLayout describes a texture binding.

type TextureDataLayout 

type TextureDataLayout struct {
	// Offset is the offset in bytes from the start of the data.
	Offset uint64
	// BytesPerRow is the number of bytes per row of texture data.
	BytesPerRow uint32
	// RowsPerImage is the number of rows per image for 3D textures.
	RowsPerImage uint32
}

TextureDataLayout describes the layout of texture data in memory.

type TextureDescriptor 

type TextureDescriptor struct {
	// Label is a debug label.
	Label string
	// Size is the texture size.
	Size Extent3D
	// MipLevelCount is the number of mip levels.
	MipLevelCount uint32
	// SampleCount is the number of samples (1 for non-multisampled).
	SampleCount uint32
	// Dimension is the texture dimension.
	Dimension TextureDimension
	// Format is the texture format.
	Format TextureFormat
	// Usage describes how the texture will be used.
	Usage TextureUsage
	// ViewFormats lists compatible view formats.
	ViewFormats []TextureFormat
}

TextureDescriptor describes a texture.

type TextureDimension 

type TextureDimension uint8

TextureDimension describes texture dimensions. 

const (
	// TextureDimension1D is a 1D texture.
	TextureDimension1D TextureDimension = iota
	// TextureDimension2D is a 2D texture.
	TextureDimension2D
	// TextureDimension3D is a 3D texture.
	TextureDimension3D
)

type TextureFormat 

type TextureFormat uint32

TextureFormat describes the format of a texture. 

const (
	// TextureFormatUndefined is an undefined format.
	TextureFormatUndefined TextureFormat = iota

	// 8-bit formats
	TextureFormatR8Unorm
	TextureFormatR8Snorm
	TextureFormatR8Uint
	TextureFormatR8Sint

	// 16-bit formats
	TextureFormatR16Uint
	TextureFormatR16Sint
	TextureFormatR16Float
	TextureFormatRG8Unorm
	TextureFormatRG8Snorm
	TextureFormatRG8Uint
	TextureFormatRG8Sint

	// 32-bit formats
	TextureFormatR32Uint
	TextureFormatR32Sint
	TextureFormatR32Float
	TextureFormatRG16Uint
	TextureFormatRG16Sint
	TextureFormatRG16Float
	TextureFormatRGBA8Unorm
	TextureFormatRGBA8UnormSrgb
	TextureFormatRGBA8Snorm
	TextureFormatRGBA8Uint
	TextureFormatRGBA8Sint
	TextureFormatBGRA8Unorm
	TextureFormatBGRA8UnormSrgb

	// Packed formats
	TextureFormatRGB9E5Ufloat
	TextureFormatRGB10A2Uint
	TextureFormatRGB10A2Unorm
	TextureFormatRG11B10Ufloat

	// 64-bit formats
	TextureFormatRG32Uint
	TextureFormatRG32Sint
	TextureFormatRG32Float
	TextureFormatRGBA16Uint
	TextureFormatRGBA16Sint
	TextureFormatRGBA16Float

	// 128-bit formats
	TextureFormatRGBA32Uint
	TextureFormatRGBA32Sint
	TextureFormatRGBA32Float

	// Depth/stencil formats
	TextureFormatStencil8
	TextureFormatDepth16Unorm
	TextureFormatDepth24Plus
	TextureFormatDepth24PlusStencil8
	TextureFormatDepth32Float
	TextureFormatDepth32FloatStencil8

	// BC compressed formats
	TextureFormatBC1RGBAUnorm
	TextureFormatBC1RGBAUnormSrgb
	TextureFormatBC2RGBAUnorm
	TextureFormatBC2RGBAUnormSrgb
	TextureFormatBC3RGBAUnorm
	TextureFormatBC3RGBAUnormSrgb
	TextureFormatBC4RUnorm
	TextureFormatBC4RSnorm
	TextureFormatBC5RGUnorm
	TextureFormatBC5RGSnorm
	TextureFormatBC6HRGBUfloat
	TextureFormatBC6HRGBFloat
	TextureFormatBC7RGBAUnorm
	TextureFormatBC7RGBAUnormSrgb

	// ETC2 compressed formats
	TextureFormatETC2RGB8Unorm
	TextureFormatETC2RGB8UnormSrgb
	TextureFormatETC2RGB8A1Unorm
	TextureFormatETC2RGB8A1UnormSrgb
	TextureFormatETC2RGBA8Unorm
	TextureFormatETC2RGBA8UnormSrgb
	TextureFormatEACR11Unorm
	TextureFormatEACR11Snorm
	TextureFormatEACRG11Unorm
	TextureFormatEACRG11Snorm

	// ASTC compressed formats
	TextureFormatASTC4x4Unorm
	TextureFormatASTC4x4UnormSrgb
	TextureFormatASTC5x4Unorm
	TextureFormatASTC5x4UnormSrgb
	TextureFormatASTC5x5Unorm
	TextureFormatASTC5x5UnormSrgb
	TextureFormatASTC6x5Unorm
	TextureFormatASTC6x5UnormSrgb
	TextureFormatASTC6x6Unorm
	TextureFormatASTC6x6UnormSrgb
	TextureFormatASTC8x5Unorm
	TextureFormatASTC8x5UnormSrgb
	TextureFormatASTC8x6Unorm
	TextureFormatASTC8x6UnormSrgb
	TextureFormatASTC8x8Unorm
	TextureFormatASTC8x8UnormSrgb
	TextureFormatASTC10x5Unorm
	TextureFormatASTC10x5UnormSrgb
	TextureFormatASTC10x6Unorm
	TextureFormatASTC10x6UnormSrgb
	TextureFormatASTC10x8Unorm
	TextureFormatASTC10x8UnormSrgb
	TextureFormatASTC10x10Unorm
	TextureFormatASTC10x10UnormSrgb
	TextureFormatASTC12x10Unorm
	TextureFormatASTC12x10UnormSrgb
	TextureFormatASTC12x12Unorm
	TextureFormatASTC12x12UnormSrgb
)

type TextureSampleType 

type TextureSampleType uint8

TextureSampleType describes the sample type of a texture. 

const (
	// TextureSampleTypeFloat samples as floating-point.
	TextureSampleTypeFloat TextureSampleType = iota
	// TextureSampleTypeUnfilterableFloat samples as unfilterable float.
	TextureSampleTypeUnfilterableFloat
	// TextureSampleTypeDepth samples as depth.
	TextureSampleTypeDepth
	// TextureSampleTypeSint samples as signed integer.
	TextureSampleTypeSint
	// TextureSampleTypeUint samples as unsigned integer.
	TextureSampleTypeUint
)

type TextureUsage 

type TextureUsage uint32

TextureUsage describes how a texture can be used. 

const (
	// TextureUsageCopySrc allows the texture to be a copy source.
	TextureUsageCopySrc TextureUsage = 1 << iota
	// TextureUsageCopyDst allows the texture to be a copy destination.
	TextureUsageCopyDst
	// TextureUsageTextureBinding allows texture binding in shaders.
	TextureUsageTextureBinding
	// TextureUsageStorageBinding allows storage binding in shaders.
	TextureUsageStorageBinding
	// TextureUsageRenderAttachment allows use as a render attachment.
	TextureUsageRenderAttachment
)

type TextureViewBinding 

type TextureViewBinding struct {
	// TextureView is the texture view handle.
	TextureView TextureViewHandle
}

TextureViewBinding binds a texture view.

type TextureViewDescriptor 

type TextureViewDescriptor struct {
	// Label is a debug label.
	Label string
	// Format is the view format (defaults to texture format).
	Format TextureFormat
	// Dimension is the view dimension.
	Dimension TextureViewDimension
	// Aspect specifies which aspect to view.
	Aspect TextureAspect
	// BaseMipLevel is the first mip level accessible.
	BaseMipLevel uint32
	// MipLevelCount is the number of accessible mip levels.
	MipLevelCount uint32
	// BaseArrayLayer is the first array layer accessible.
	BaseArrayLayer uint32
	// ArrayLayerCount is the number of accessible array layers.
	ArrayLayerCount uint32
}

TextureViewDescriptor describes a texture view.

type TextureViewDimension 

type TextureViewDimension uint8

TextureViewDimension describes a texture view dimension. 

const (
	// TextureViewDimensionUndefined uses the same dimension as the texture.
	TextureViewDimensionUndefined TextureViewDimension = iota
	// TextureViewDimension1D is a 1D texture view.
	TextureViewDimension1D
	// TextureViewDimension2D is a 2D texture view.
	TextureViewDimension2D
	// TextureViewDimension2DArray is a 2D array texture view.
	TextureViewDimension2DArray
	// TextureViewDimensionCube is a cube texture view.
	TextureViewDimensionCube
	// TextureViewDimensionCubeArray is a cube array texture view.
	TextureViewDimensionCubeArray
	// TextureViewDimension3D is a 3D texture view.
	TextureViewDimension3D
)

type TextureViewHandle 

type TextureViewHandle uint64

Handle types for bind resources.

type VertexAttribute 

type VertexAttribute struct {
	// Format is the attribute format.
	Format VertexFormat
	// Offset is the byte offset within the vertex buffer.
	Offset uint64
	// ShaderLocation is the location in the shader.
	ShaderLocation uint32
}

VertexAttribute describes a vertex attribute.

type VertexBufferLayout 

type VertexBufferLayout struct {
	// ArrayStride is the stride between vertices in bytes.
	ArrayStride uint64
	// StepMode describes how the buffer is stepped.
	StepMode VertexStepMode
	// Attributes are the vertex attributes.
	Attributes []VertexAttribute
}

VertexBufferLayout describes a vertex buffer layout.

type VertexFormat 

type VertexFormat uint8

VertexFormat describes a vertex attribute format. 

const (
	VertexFormatUint8x2 VertexFormat = iota
	VertexFormatUint8x4
	VertexFormatSint8x2
	VertexFormatSint8x4
	VertexFormatUnorm8x2
	VertexFormatUnorm8x4
	VertexFormatSnorm8x2
	VertexFormatSnorm8x4
	VertexFormatUint16x2
	VertexFormatUint16x4
	VertexFormatSint16x2
	VertexFormatSint16x4
	VertexFormatUnorm16x2
	VertexFormatUnorm16x4
	VertexFormatSnorm16x2
	VertexFormatSnorm16x4
	VertexFormatFloat16x2
	VertexFormatFloat16x4
	VertexFormatFloat32
	VertexFormatFloat32x2
	VertexFormatFloat32x3
	VertexFormatFloat32x4
	VertexFormatUint32
	VertexFormatUint32x2
	VertexFormatUint32x3
	VertexFormatUint32x4
	VertexFormatSint32
	VertexFormatSint32x2
	VertexFormatSint32x3
	VertexFormatSint32x4
	VertexFormatUnorm1010102
)

func (VertexFormat) Size 

func (f VertexFormat) Size() uint64

Size returns the byte size of the vertex format.

type VertexState 

type VertexState struct {
	// Buffers are the vertex buffer layouts.
	Buffers []VertexBufferLayout
}

VertexState describes the vertex stage of a render pipeline.

type VertexStepMode 

type VertexStepMode uint8

VertexStepMode describes how vertex data is stepped. 

const (
	// VertexStepModeVertex steps per vertex.
	VertexStepModeVertex VertexStepMode = iota
	// VertexStepModeInstance steps per instance.
	VertexStepModeInstance
)

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.