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library_webgpu.js
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/**
* @license
* Copyright 2019 The Emscripten Authors
* SPDX-License-Identifier: MIT
*/
/*
* WebGPU support.
*
* This file implements the common C header <webgpu/webgpu.h> on top of the
* browser's native JS WebGPU implementation. This allows applications targeting
* wgpu-native (https://github.com/gfx-rs/wgpu) or
* Dawn (https://dawn.googlesource.com/dawn/) to also target the Web with the
* same graphics API and fairly minimal changes - similar to OpenGL ES 2.0/3.0
* on WebGL 1.0/2.0.
*
* To test this, run the following tests:
* - tests/runner.py other.test_webgpu_compiletest
* - EMTEST_BROWSERS="/path/to/chrome --user-data-dir=chromeuserdata --enable-unsafe-webgpu" \
* tests/runner.py browser.test_webgpu_basic_rendering
* (requires WebGPU to be available - otherwise the test will skip itself and pass)
*/
{{{ (function() {
// Helper functions for code generation
global.gpu = {
makeInitManager: function(type) {
var mgr = 'WebGPU.mgr' + type
return mgr + ' = ' + mgr + ' || new Manager();';
},
makeReferenceRelease: function(type) {
var s = '';
s += 'wgpu' + type + 'Reference: function(id) {\n';
s += ' WebGPU.mgr' + type + '.reference(id);\n'
s += '},\n';
s += 'wgpu' + type + 'Release: function(id) {\n';
s += ' WebGPU.mgr' + type + '.release(id);\n'
s += '},';
return s;
},
makeU64ToNumber: function(lowName, highName) {
var ret = '(';
if (ASSERTIONS) {
ret += `assert(${highName} < 0x200000), `;
}
ret += `${highName} * 0x100000000 + ${lowName})\n`;
return ret;
},
makeU64ToNumberWithSentinelAsUndefined: function(lowName, highName) {
var ret = `((${highName} === -1 && ${lowName} === -1) ? undefined : \
${this.makeU64ToNumber(lowName, highName)})`;
return ret;
},
makeGetBool: function(struct, offset) {
// In an actual build, bool seems to be i8. But on the off-chance it's i32, on little-endian
// this will still work as long as the value of 'true' isn't zero in the lowest byte.
return '(' + makeGetValue(struct, offset, 'i8') + ' !== 0)';
},
makeGetU32: function(struct, offset) {
return makeGetValue(struct, offset, 'u32');
},
makeGetU64: function(struct, offset) {
var l = makeGetValue(struct, offset, 'u32');
var h = makeGetValue('(' + struct + ' + 4)', offset, 'u32')
return h + ' * 0x100000000 + ' + l
},
makeCheck: function(str) {
if (!ASSERTIONS) return '';
return 'assert(' + str + ');';
},
makeCheckDefined: function(name) {
return this.makeCheck('typeof ' + name + ' != "undefined"');
},
makeCheckDescriptor: function(descriptor) {
// Assert descriptor is non-null, then that its nextInChain is null.
// For descriptors that aren't the first in the chain (e.g
// ShaderModuleSPIRVDescriptor), there is no .nextInChain pointer, but
// instead a ChainedStruct object: .chain. So we need to check if
// .chain.nextInChain is null. As long as nextInChain and chain are always
// the first member in the struct, descriptor.nextInChain and
// descriptor.chain.nextInChain should have the same offset (0) to the
// descriptor pointer and we can check it to be null.
var OffsetOfNextInChainMember = 0;
return this.makeCheck(descriptor) + this.makeCheck(makeGetValue(descriptor, OffsetOfNextInChainMember, '*') + ' === 0');
},
// Must be in sync with webgpu.h.
COPY_STRIDE_UNDEFINED: 0xFFFFFFFF,
LIMIT_U32_UNDEFINED: 0xFFFFFFFF,
WHOLE_MAP_SIZE: 0xFFFFFFFF, // use 32-bit uint max
AdapterType: {
Unknown: 3,
},
BackendType: {
WebGPU: 1,
},
BufferMapAsyncStatus: {
Success: 0,
Error: 1,
},
ErrorType: {
NoError: 0,
Validation: 1,
OutOfMemory: 2,
Unknown: 3,
},
PresentMode: {
Fifo: 2,
},
LoadOp: {
Undefined: 0,
Clear: 1,
Load: 2,
},
StoreOp: {
Undefined: 0,
Store: 1,
Discard: 2,
},
MapMode: {
None: 0,
Read: 1,
Write: 2
},
RequestAdapterStatus: {
Success: 0,
Unavailable: 1,
Error: 2,
},
RequestDeviceStatus: {
Success: 0,
Error: 1,
},
SType: {
SurfaceDescriptorFromCanvasHTMLSelector: 4,
ShaderModuleSPIRVDescriptor: 5,
ShaderModuleWGSLDescriptor: 6,
},
QueueWorkDoneStatus: {
Success: 0,
Error: 1,
},
};
return null;
})(); }}}
var LibraryWebGPU = {
$WebGPU__postset: 'WebGPU.initManagers();',
$WebGPU: {
initManagers: function() {
if (WebGPU.mgrDevice) return;
/** @constructor */
function Manager() {
this.objects = {};
this.nextId = 1;
this.create = function(object, wrapper /* = {} */) {
wrapper = wrapper || {};
var id = this.nextId++;
{{{ gpu.makeCheck("typeof this.objects[id] == 'undefined'") }}}
wrapper.refcount = 1;
wrapper.object = object;
this.objects[id] = wrapper;
return id;
};
this.get = function(id) {
if (!id) return undefined;
var o = this.objects[id];
{{{ gpu.makeCheckDefined('o') }}}
return o.object;
};
this.reference = function(id) {
var o = this.objects[id];
{{{ gpu.makeCheckDefined('o') }}}
o.refcount++;
};
this.release = function(id) {
var o = this.objects[id];
{{{ gpu.makeCheckDefined('o') }}}
{{{ gpu.makeCheck('o.refcount > 0') }}}
o.refcount--;
if (o.refcount <= 0) {
delete this.objects[id];
}
};
}
{{{ gpu.makeInitManager('Surface') }}}
{{{ gpu.makeInitManager('SwapChain') }}}
{{{ gpu.makeInitManager('Adapter') }}}
// TODO: Release() the device's default queue when the device is freed.
{{{ gpu.makeInitManager('Device') }}}
{{{ gpu.makeInitManager('Queue') }}}
{{{ gpu.makeInitManager('CommandBuffer') }}}
{{{ gpu.makeInitManager('CommandEncoder') }}}
{{{ gpu.makeInitManager('RenderPassEncoder') }}}
{{{ gpu.makeInitManager('ComputePassEncoder') }}}
{{{ gpu.makeInitManager('BindGroup') }}}
{{{ gpu.makeInitManager('Buffer') }}}
{{{ gpu.makeInitManager('Sampler') }}}
{{{ gpu.makeInitManager('Texture') }}}
{{{ gpu.makeInitManager('TextureView') }}}
{{{ gpu.makeInitManager('QuerySet') }}}
{{{ gpu.makeInitManager('BindGroupLayout') }}}
{{{ gpu.makeInitManager('PipelineLayout') }}}
{{{ gpu.makeInitManager('RenderPipeline') }}}
{{{ gpu.makeInitManager('ComputePipeline') }}}
{{{ gpu.makeInitManager('ShaderModule') }}}
{{{ gpu.makeInitManager('RenderBundleEncoder') }}}
{{{ gpu.makeInitManager('RenderBundle') }}}
},
makeColor: function(ptr) {
return {
"r": {{{ makeGetValue('ptr', 0, 'double') }}},
"g": {{{ makeGetValue('ptr', 8, 'double') }}},
"b": {{{ makeGetValue('ptr', 16, 'double') }}},
"a": {{{ makeGetValue('ptr', 24, 'double') }}},
};
},
makeExtent3D: function(ptr) {
return {
"width": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUExtent3D.width) }}},
"height": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUExtent3D.height) }}},
"depthOrArrayLayers": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUExtent3D.depthOrArrayLayers) }}},
};
},
makeOrigin3D: function(ptr) {
return {
"x": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUOrigin3D.x) }}},
"y": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUOrigin3D.y) }}},
"z": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUOrigin3D.z) }}},
};
},
makeImageCopyTexture: function(ptr) {
{{{ gpu.makeCheckDescriptor('ptr') }}}
return {
"texture": WebGPU.mgrTexture.get(
{{{ makeGetValue('ptr', C_STRUCTS.WGPUImageCopyTexture.texture, '*') }}}),
"mipLevel": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUImageCopyTexture.mipLevel) }}},
"origin": WebGPU.makeOrigin3D(ptr + {{{ C_STRUCTS.WGPUImageCopyTexture.origin }}}),
"aspect": WebGPU.TextureAspect[{{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUImageCopyTexture.aspect) }}}],
};
},
makeTextureDataLayout: function(ptr) {
{{{ gpu.makeCheckDescriptor('ptr') }}}
var bytesPerRow = {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUTextureDataLayout.bytesPerRow) }}};
var rowsPerImage = {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUTextureDataLayout.rowsPerImage) }}};
return {
"offset": {{{ gpu.makeGetU64('ptr', C_STRUCTS.WGPUTextureDataLayout.offset) }}},
"bytesPerRow": bytesPerRow === {{{ gpu.COPY_STRIDE_UNDEFINED }}} ? undefined : bytesPerRow,
"rowsPerImage": rowsPerImage === {{{ gpu.COPY_STRIDE_UNDEFINED }}} ? undefined : rowsPerImage,
};
},
makeImageCopyBuffer: function(ptr) {
{{{ gpu.makeCheckDescriptor('ptr') }}}
var layoutPtr = ptr + {{{ C_STRUCTS.WGPUImageCopyBuffer.layout }}};
var bufferCopyView = WebGPU.makeTextureDataLayout(layoutPtr);
bufferCopyView["buffer"] = WebGPU.mgrBuffer.get(
{{{ makeGetValue('ptr', C_STRUCTS.WGPUImageCopyBuffer.buffer, '*') }}});
return bufferCopyView;
},
makePipelineConstants: function(constantCount, constantsPtr) {
if (!constantCount) return;
var constants = {};
for (var i = 0; i < constantCount; ++i) {
var entryPtr = constantsPtr + {{{ C_STRUCTS.WGPUConstantEntry.__size__ }}} * i;
var key = UTF8ToString({{{ makeGetValue('entryPtr', C_STRUCTS.WGPUConstantEntry.key, '*') }}});
constants[key] = {{{ makeGetValue('entryPtr', C_STRUCTS.WGPUConstantEntry.value, 'double') }}};
}
return constants;
},
makeProgrammableStageDescriptor: function(ptr) {
if (!ptr) return undefined;
{{{ gpu.makeCheckDescriptor('ptr') }}}
return {
"module": WebGPU.mgrShaderModule.get(
{{{ makeGetValue('ptr', C_STRUCTS.WGPUProgrammableStageDescriptor.module, '*') }}}),
"entryPoint": UTF8ToString(
{{{ makeGetValue('ptr', C_STRUCTS.WGPUProgrammableStageDescriptor.entryPoint, '*') }}}),
"constants": WebGPU.makePipelineConstants(
{{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUProgrammableStageDescriptor.constantCount) }}},
{{{ makeGetValue('ptr', C_STRUCTS.WGPUProgrammableStageDescriptor.constants, '*') }}}),
};
},
// Map from enum string back to enum number, for callbacks.
DeviceLostReason: {
'undefined': 0,
'destroyed': 1,
},
PreferredFormat: {
'rgba8unorm': 0x12,
'bgra8unorm': 0x17,
},
// This section is auto-generated. See system/include/webgpu/README.md for details.
AddressMode: [
'repeat',
'mirror-repeat',
'clamp-to-edge',
],
BlendFactor: [
'zero',
'one',
'src',
'one-minus-src',
'src-alpha',
'one-minus-src-alpha',
'dst',
'one-minus-dst',
'dst-alpha',
'one-minus-dst-alpha',
'src-alpha-saturated',
'constant',
'one-minus-constant',
],
BlendOperation: [
'add',
'subtract',
'reverse-subtract',
'min',
'max',
],
BufferBindingType: [
undefined,
'uniform',
'storage',
'read-only-storage',
],
CompareFunction: [
undefined,
'never',
'less',
'less-equal',
'greater',
'greater-equal',
'equal',
'not-equal',
'always',
],
CompilationInfoRequestStatus: [
'success',
'error',
'device-lost',
'unknown',
],
ComputePassTimestampLocation: [
'beginning',
'end',
],
CullMode: [
'none',
'front',
'back',
],
ErrorFilter: [
'validation',
'out-of-memory',
],
FeatureName: {
0: undefined,
1: 'depth-clip-control',
2: 'depth24unorm-stencil8',
3: 'depth32float-stencil8',
4: 'timestamp-query',
5: 'pipeline-statistics-query',
6: 'texture-compression-bc',
7: 'texture-compression-etc2',
8: 'texture-compression-astc',
9: 'indirect-first-instance',
1000: 'depth-clamping',
},
FilterMode: [
'nearest',
'linear',
],
FrontFace: [
'ccw',
'cw',
],
IndexFormat: [
undefined,
'uint16',
'uint32',
],
LoadOp: [
undefined,
'clear',
'load',
],
PipelineStatisticName: [
'vertex-shader-invocations',
'clipper-invocations',
'clipper-primitives-out',
'fragment-shader-invocations',
'compute-shader-invocations',
],
PowerPreference: [
undefined,
'low-power',
'high-performance',
],
PredefinedColorSpace: [
undefined,
'srgb',
],
PrimitiveTopology: [
'point-list',
'line-list',
'line-strip',
'triangle-list',
'triangle-strip',
],
QueryType: [
'occlusion',
'pipeline-statistics',
'timestamp',
],
RenderPassTimestampLocation: [
'beginning',
'end',
],
SamplerBindingType: [
undefined,
'filtering',
'non-filtering',
'comparison',
],
StencilOperation: [
'keep',
'zero',
'replace',
'invert',
'increment-clamp',
'decrement-clamp',
'increment-wrap',
'decrement-wrap',
],
StorageTextureAccess: [
undefined,
'write-only',
],
StoreOp: [
undefined,
'store',
'discard',
],
TextureAspect: [
'all',
'stencil-only',
'depth-only',
],
TextureComponentType: [
'float',
'sint',
'uint',
'depth-comparison',
],
TextureDimension: [
'1d',
'2d',
'3d',
],
TextureFormat: [
undefined,
'r8unorm',
'r8snorm',
'r8uint',
'r8sint',
'r16uint',
'r16sint',
'r16float',
'rg8unorm',
'rg8snorm',
'rg8uint',
'rg8sint',
'r32float',
'r32uint',
'r32sint',
'rg16uint',
'rg16sint',
'rg16float',
'rgba8unorm',
'rgba8unorm-srgb',
'rgba8snorm',
'rgba8uint',
'rgba8sint',
'bgra8unorm',
'bgra8unorm-srgb',
'rgb10a2unorm',
'rg11b10ufloat',
'rgb9e5ufloat',
'rg32float',
'rg32uint',
'rg32sint',
'rgba16uint',
'rgba16sint',
'rgba16float',
'rgba32float',
'rgba32uint',
'rgba32sint',
'stencil8',
'depth16unorm',
'depth24plus',
'depth24plus-stencil8',
'depth24unorm-stencil8',
'depth32float',
'depth32float-stencil8',
'bc1-rgba-unorm',
'bc1-rgba-unorm-srgb',
'bc2-rgba-unorm',
'bc2-rgba-unorm-srgb',
'bc3-rgba-unorm',
'bc3-rgba-unorm-srgb',
'bc4-r-unorm',
'bc4-r-snorm',
'bc5-rg-unorm',
'bc5-rg-snorm',
'bc6h-rgb-ufloat',
'bc6h-rgb-float',
'bc7-rgba-unorm',
'bc7-rgba-unorm-srgb',
'etc2-rgb8unorm',
'etc2-rgb8unorm-srgb',
'etc2-rgb8a1unorm',
'etc2-rgb8a1unorm-srgb',
'etc2-rgba8unorm',
'etc2-rgba8unorm-srgb',
'eac-r11unorm',
'eac-r11snorm',
'eac-rg11unorm',
'eac-rg11snorm',
'astc-4x4-unorm',
'astc-4x4-unorm-srgb',
'astc-5x4-unorm',
'astc-5x4-unorm-srgb',
'astc-5x5-unorm',
'astc-5x5-unorm-srgb',
'astc-6x5-unorm',
'astc-6x5-unorm-srgb',
'astc-6x6-unorm',
'astc-6x6-unorm-srgb',
'astc-8x5-unorm',
'astc-8x5-unorm-srgb',
'astc-8x6-unorm',
'astc-8x6-unorm-srgb',
'astc-8x8-unorm',
'astc-8x8-unorm-srgb',
'astc-10x5-unorm',
'astc-10x5-unorm-srgb',
'astc-10x6-unorm',
'astc-10x6-unorm-srgb',
'astc-10x8-unorm',
'astc-10x8-unorm-srgb',
'astc-10x10-unorm',
'astc-10x10-unorm-srgb',
'astc-12x10-unorm',
'astc-12x10-unorm-srgb',
'astc-12x12-unorm',
'astc-12x12-unorm-srgb',
],
TextureSampleType: [
undefined,
'float',
'unfilterable-float',
'depth',
'sint',
'uint',
],
TextureViewDimension: [
undefined,
'1d',
'2d',
'2d-array',
'cube',
'cube-array',
'3d',
],
VertexFormat: [
undefined,
'uint8x2',
'uint8x4',
'sint8x2',
'sint8x4',
'unorm8x2',
'unorm8x4',
'snorm8x2',
'snorm8x4',
'uint16x2',
'uint16x4',
'sint16x2',
'sint16x4',
'unorm16x2',
'unorm16x4',
'snorm16x2',
'snorm16x4',
'float16x2',
'float16x4',
'float32',
'float32x2',
'float32x3',
'float32x4',
'uint32',
'uint32x2',
'uint32x3',
'uint32x4',
'sint32',
'sint32x2',
'sint32x3',
'sint32x4',
],
VertexStepMode: [
'vertex',
'instance',
],
},
// *Reference/*Release
{{{ gpu.makeReferenceRelease('Surface') }}}
{{{ gpu.makeReferenceRelease('SwapChain') }}}
{{{ gpu.makeReferenceRelease('Adapter') }}}
{{{ gpu.makeReferenceRelease('Device') }}}
{{{ gpu.makeReferenceRelease('Queue') }}}
{{{ gpu.makeReferenceRelease('CommandBuffer') }}}
{{{ gpu.makeReferenceRelease('CommandEncoder') }}}
{{{ gpu.makeReferenceRelease('RenderPassEncoder') }}}
{{{ gpu.makeReferenceRelease('ComputePassEncoder') }}}
{{{ gpu.makeReferenceRelease('BindGroup') }}}
{{{ gpu.makeReferenceRelease('Buffer') }}}
{{{ gpu.makeReferenceRelease('Sampler') }}}
{{{ gpu.makeReferenceRelease('Texture') }}}
{{{ gpu.makeReferenceRelease('TextureView') }}}
{{{ gpu.makeReferenceRelease('QuerySet') }}}
{{{ gpu.makeReferenceRelease('BindGroupLayout') }}}
{{{ gpu.makeReferenceRelease('PipelineLayout') }}}
{{{ gpu.makeReferenceRelease('RenderPipeline') }}}
{{{ gpu.makeReferenceRelease('ComputePipeline') }}}
{{{ gpu.makeReferenceRelease('ShaderModule') }}}
{{{ gpu.makeReferenceRelease('RenderBundleEncoder') }}}
{{{ gpu.makeReferenceRelease('RenderBundle') }}}
// *Destroy
wgpuBufferDestroy: function(bufferId) { WebGPU.mgrBuffer.get(bufferId)["destroy"](); },
wgpuTextureDestroy: function(textureId) { WebGPU.mgrTexture.get(textureId)["destroy"](); },
wgpuQuerySetDestroy: function(querySetId) { WebGPU.mgrQuerySet.get(querySetId)["destroy"](); },
// wgpuDevice
wgpuDeviceEnumerateFeatures: function(deviceId, featuresOutPtr) {
var device = WebGPU.mgrDevice.get(deviceId);
if (featuresOutPtr !== 0) {
var offset = 0;
device.features.forEach(feature => {
var featureEnumValue = WebGPU.FeatureNameString2Enum[feature];
{{{ makeSetValue('featuresOutPtr', 'offset', 'featureEnumValue', 'i32') }}};
offset += 4;
});
}
return device.features.size;
},
wgpuDeviceDestroy: function(deviceId) { WebGPU.mgrDevice.get(deviceId)["destroy"](); },
wgpuDeviceGetLimits: function(deviceId, limitsOutPtr) {
var device = WebGPU.mgrDevice.objects[deviceId].object;
var limitsPtr = {{{ C_STRUCTS.WGPUSupportedLimits.limits }}};
function setLimitValueU32(name, limitOffset) {
var limitValue = device.limits[name];
{{{ makeSetValue('limitsOutPtr', 'limitsPtr + limitOffset', 'limitValue', 'i32') }}};
}
function setLimitValueU64(name, limitOffset) {
var limitValue = device.limits[name];
{{{ makeSetValue('limitsOutPtr', 'limitsPtr + limitOffset', 'limitValue', 'i64') }}};
}
setLimitValueU32('maxTextureDimension1D', {{{ C_STRUCTS.WGPULimits.maxTextureDimension1D }}});
setLimitValueU32('maxTextureDimension2D', {{{ C_STRUCTS.WGPULimits.maxTextureDimension2D }}});
setLimitValueU32('maxTextureDimension3D', {{{ C_STRUCTS.WGPULimits.maxTextureDimension3D }}});
setLimitValueU32('maxTextureArrayLayers', {{{ C_STRUCTS.WGPULimits.maxTextureArrayLayers }}});
setLimitValueU32('maxBindGroups', {{{ C_STRUCTS.WGPULimits.maxBindGroups }}});
setLimitValueU32('maxDynamicUniformBuffersPerPipelineLayout', {{{ C_STRUCTS.WGPULimits.maxDynamicUniformBuffersPerPipelineLayout }}});
setLimitValueU32('maxDynamicStorageBuffersPerPipelineLayout', {{{ C_STRUCTS.WGPULimits.maxDynamicStorageBuffersPerPipelineLayout }}});
setLimitValueU32('maxSampledTexturesPerShaderStage', {{{ C_STRUCTS.WGPULimits.maxSampledTexturesPerShaderStage }}});
setLimitValueU32('maxSamplersPerShaderStage', {{{ C_STRUCTS.WGPULimits.maxSamplersPerShaderStage }}});
setLimitValueU32('maxStorageBuffersPerShaderStage', {{{ C_STRUCTS.WGPULimits.maxStorageBuffersPerShaderStage }}});
setLimitValueU32('maxStorageTexturesPerShaderStage', {{{ C_STRUCTS.WGPULimits.maxStorageTexturesPerShaderStage }}});
setLimitValueU32('maxUniformBuffersPerShaderStage', {{{ C_STRUCTS.WGPULimits.maxUniformBuffersPerShaderStage }}});
setLimitValueU32('minUniformBufferOffsetAlignment', {{{ C_STRUCTS.WGPULimits.minUniformBufferOffsetAlignment }}});
setLimitValueU32('minStorageBufferOffsetAlignment', {{{ C_STRUCTS.WGPULimits.minStorageBufferOffsetAlignment }}});
setLimitValueU64('maxUniformBufferBindingSize', {{{ C_STRUCTS.WGPULimits.maxUniformBufferBindingSize }}});
setLimitValueU64('maxStorageBufferBindingSize', {{{ C_STRUCTS.WGPULimits.maxStorageBufferBindingSize }}});
setLimitValueU32('maxVertexBuffers', {{{ C_STRUCTS.WGPULimits.maxVertexBuffers }}});
setLimitValueU32('maxVertexAttributes', {{{ C_STRUCTS.WGPULimits.maxVertexAttributes }}});
setLimitValueU32('maxVertexBufferArrayStride', {{{ C_STRUCTS.WGPULimits.maxVertexBufferArrayStride }}});
setLimitValueU32('maxInterStageShaderComponents', {{{ C_STRUCTS.WGPULimits.maxInterStageShaderComponents }}});
setLimitValueU32('maxComputeWorkgroupStorageSize', {{{ C_STRUCTS.WGPULimits.maxComputeWorkgroupStorageSize }}});
setLimitValueU32('maxComputeInvocationsPerWorkgroup', {{{ C_STRUCTS.WGPULimits.maxComputeInvocationsPerWorkgroup }}});
setLimitValueU32('maxComputeWorkgroupSizeX', {{{ C_STRUCTS.WGPULimits.maxComputeWorkgroupSizeX }}});
setLimitValueU32('maxComputeWorkgroupSizeY', {{{ C_STRUCTS.WGPULimits.maxComputeWorkgroupSizeY }}});
setLimitValueU32('maxComputeWorkgroupSizeZ', {{{ C_STRUCTS.WGPULimits.maxComputeWorkgroupSizeZ }}});
setLimitValueU32('maxComputeWorkgroupsPerDimension', {{{ C_STRUCTS.WGPULimits.maxComputeWorkgroupsPerDimension }}});
},
wgpuDeviceGetQueue: function(deviceId) {
var queueId = WebGPU.mgrDevice.objects[deviceId].queueId;
#if ASSERTIONS
assert(queueId, 'wgpuDeviceGetQueue: queue was missing or null');
#endif
// Returns a new reference to the existing queue.
WebGPU.mgrQueue.reference(queueId);
return queueId;
},
wgpuDeviceHasFeature: function(deviceId, featureEnumValue) {
var device = WebGPU.mgrDevice.get(deviceId);
return device.features.has(WebGPU.FeatureName[featureEnumValue]);
},
wgpuDevicePushErrorScope: function(deviceId, filter) {
var device = WebGPU.mgrDevice.get(deviceId);
device["pushErrorScope"](WebGPU.ErrorFilter[filter]);
},
wgpuDevicePopErrorScope__deps: [
'$callUserCallback',
#if MINIMAL_RUNTIME
'$allocateUTF8',
#else
'$runtimeKeepalivePush', '$runtimeKeepalivePop',
#endif
],
wgpuDevicePopErrorScope: function(deviceId, callback, userdata) {
var device = WebGPU.mgrDevice.get(deviceId);
{{{ runtimeKeepalivePush() }}}
device["popErrorScope"]().then(function(gpuError) {
{{{ runtimeKeepalivePop() }}}
callUserCallback(function() {
if (!gpuError) {
{{{ makeDynCall('viii', 'callback') }}}(
{{{ gpu.ErrorType.NoError }}}, 0, userdata);
} else if (gpuError instanceof GPUOutOfMemoryError) {
{{{ makeDynCall('viii', 'callback') }}}(
{{{ gpu.ErrorType.OutOfMemory }}}, 0, userdata);
} else {
#if ASSERTIONS
assert(gpuError instanceof GPUValidationError);
#endif
var messagePtr = allocateUTF8(gpuError.message);
{{{ makeDynCall('viii', 'callback') }}}({{{ gpu.ErrorType.Validation }}}, messagePtr, userdata);
_free(messagePtr);
}
});
}, function(ex) {
{{{ runtimeKeepalivePop() }}}
callUserCallback(function() {
var messagePtr = allocateUTF8(ex.message);
// TODO: This can mean either the device was lost or the error scope stack was empty. Figure
// out how to synthesize the DeviceLost error type. (Could be by simply tracking the error
// scope depth, but that isn't ideal.)
{{{ makeDynCall('viii', 'callback') }}}({{{ gpu.ErrorType.Unknown }}}, messagePtr, userdata);
_free(messagePtr);
});
});
},
wgpuDeviceSetLabel: function(deviceId, labelPtr) {
var device = WebGPU.mgrDevice.get(deviceId);
device.label = UTF8ToString(labelPtr);
},
wgpuDeviceSetDeviceLostCallback__deps: [
'$callUserCallback',
#if MINIMAL_RUNTIME
'$allocateUTF8',
#endif
],
wgpuDeviceSetDeviceLostCallback: function(deviceId, callback, userdata) {
var deviceWrapper = WebGPU.mgrDevice.objects[deviceId];
{{{ gpu.makeCheckDefined('deviceWrapper') }}}
if (!deviceWrapper.lostCallback) {
// device.lost hasn't been registered yet - register it.
deviceWrapper.object["lost"].then(function(info) {
deviceWrapper.lostCallback(info);
});
}
deviceWrapper.lostCallback = function(info) {
// This will skip the callback if the runtime is no longer alive.
callUserCallback(function() {
var messagePtr = allocateUTF8(info.message);
{{{ makeDynCall('viii', 'callback') }}}(WebGPU.DeviceLostReason[info.reason], messagePtr, userdata);
_free(messagePtr);
});
};
},
wgpuDeviceSetUncapturedErrorCallback__deps: [
'$callUserCallback',
#if MINIMAL_RUNTIME
'$allocateUTF8',
#endif
],
wgpuDeviceSetUncapturedErrorCallback: function(deviceId, callback, userdata) {
var device = WebGPU.mgrDevice.get(deviceId);
device["onuncapturederror"] = function(ev) {
// This will skip the callback if the runtime is no longer alive.
callUserCallback(function() {
// WGPUErrorType type, const char* message, void* userdata
var Validation = 0x00000001;
var OutOfMemory = 0x00000002;
var type;
#if ASSERTIONS
assert(typeof GPUValidationError != 'undefined');
assert(typeof GPUOutOfMemoryError != 'undefined');
#endif
if (ev.error instanceof GPUValidationError) type = Validation;
else if (ev.error instanceof GPUOutOfMemoryError) type = OutOfMemory;
var messagePtr = allocateUTF8(ev.error.message);
{{{ makeDynCall('viii', 'callback') }}}(type, messagePtr, userdata);
_free(messagePtr);
});
};
},
// wgpuDeviceCreate*
wgpuDeviceCreateCommandEncoder: function(deviceId, descriptor) {
var desc;
if (descriptor) {
{{{ gpu.makeCheckDescriptor('descriptor') }}}
desc = {
"label": undefined,
};
var labelPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPUCommandEncoderDescriptor.label, '*') }}};
if (labelPtr) desc["label"] = UTF8ToString(labelPtr);
}
var device = WebGPU.mgrDevice.get(deviceId);
return WebGPU.mgrCommandEncoder.create(device["createCommandEncoder"](desc));
},
wgpuDeviceCreateBuffer: function(deviceId, descriptor) {
{{{ gpu.makeCheckDescriptor('descriptor') }}}
var mappedAtCreation = {{{ gpu.makeGetBool('descriptor', C_STRUCTS.WGPUBufferDescriptor.mappedAtCreation) }}};
var desc = {
"label": undefined,
"usage": {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUBufferDescriptor.usage) }}},
"size": {{{ gpu.makeGetU64('descriptor', C_STRUCTS.WGPUBufferDescriptor.size) }}},
"mappedAtCreation": mappedAtCreation,
};
var labelPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPUBufferDescriptor.label, '*') }}};
if (labelPtr) desc["label"] = UTF8ToString(labelPtr);
var device = WebGPU.mgrDevice.get(deviceId);
var bufferWrapper = {};
var id = WebGPU.mgrBuffer.create(device["createBuffer"](desc), bufferWrapper);
if (mappedAtCreation) {
bufferWrapper.mapMode = {{{ gpu.MapMode.Write }}};
bufferWrapper.onUnmap = [];
}
return id;
},
wgpuDeviceCreateTexture: function(deviceId, descriptor) {
{{{ gpu.makeCheckDescriptor('descriptor') }}}
var desc = {
"label": undefined,
"size": WebGPU.makeExtent3D(descriptor + {{{ C_STRUCTS.WGPUTextureDescriptor.size }}}),
"mipLevelCount": {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUTextureDescriptor.mipLevelCount) }}},
"sampleCount": {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUTextureDescriptor.sampleCount) }}},
"dimension": WebGPU.TextureDimension[
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUTextureDescriptor.dimension) }}}],
"format": WebGPU.TextureFormat[
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUTextureDescriptor.format) }}}],
"usage": {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUTextureDescriptor.usage) }}},
};
var labelPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPUTextureDescriptor.label, '*') }}};
if (labelPtr) desc["label"] = UTF8ToString(labelPtr);
var viewFormatCount = {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUTextureDescriptor.viewFormatCount) }}};
if (viewFormatCount) {
var viewFormatsPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPUTextureDescriptor.viewFormats, '*') }}};
desc["viewFormats"] = Array.from(HEAP32.subarray(viewFormatsPtr >> 2, (viewFormatsPtr >> 2) + viewFormatCount),
function(format) { return WebGPU.TextureFormat[format]; });
}
var device = WebGPU.mgrDevice.get(deviceId);
return WebGPU.mgrTexture.create(device["createTexture"](desc));
},
wgpuDeviceCreateSampler: function(deviceId, descriptor) {
{{{ gpu.makeCheckDescriptor('descriptor') }}}
var desc = {
"label": undefined,
"addressModeU": WebGPU.AddressMode[
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUSamplerDescriptor.addressModeU) }}}],
"addressModeV": WebGPU.AddressMode[
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUSamplerDescriptor.addressModeV) }}}],
"addressModeW": WebGPU.AddressMode[
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUSamplerDescriptor.addressModeW) }}}],
"magFilter": WebGPU.FilterMode[
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUSamplerDescriptor.magFilter) }}}],
"minFilter": WebGPU.FilterMode[
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUSamplerDescriptor.minFilter) }}}],
"mipmapFilter": WebGPU.FilterMode[
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUSamplerDescriptor.mipmapFilter) }}}],
"lodMinClamp": {{{ makeGetValue('descriptor', C_STRUCTS.WGPUSamplerDescriptor.lodMinClamp, 'float') }}},
"lodMaxClamp": {{{ makeGetValue('descriptor', C_STRUCTS.WGPUSamplerDescriptor.lodMaxClamp, 'float') }}},
"compare": WebGPU.CompareFunction[
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUSamplerDescriptor.compare) }}}],
};
var labelPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPUSamplerDescriptor.label, '*') }}};
if (labelPtr) desc["label"] = UTF8ToString(labelPtr);
var device = WebGPU.mgrDevice.get(deviceId);
return WebGPU.mgrSampler.create(device["createSampler"](desc));
},
wgpuDeviceCreateBindGroupLayout: function(deviceId, descriptor) {
{{{ gpu.makeCheckDescriptor('descriptor') }}}
function makeBufferEntry(entryPtr) {
{{{ gpu.makeCheck('entryPtr') }}}
var typeInt =
{{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBufferBindingLayout.type) }}};
if (!typeInt) return undefined;
return {
"type": WebGPU.BufferBindingType[typeInt],
"hasDynamicOffset":
{{{ gpu.makeGetBool('entryPtr', C_STRUCTS.WGPUBufferBindingLayout.hasDynamicOffset) }}},
"minBindingSize":
{{{ gpu.makeGetU64('entryPtr', C_STRUCTS.WGPUBufferBindingLayout.minBindingSize) }}},
};
}
function makeSamplerEntry(entryPtr) {
{{{ gpu.makeCheck('entryPtr') }}}
var typeInt =
{{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUSamplerBindingLayout.type) }}};
if (!typeInt) return undefined;
return {
"type": WebGPU.SamplerBindingType[typeInt],
};
}
function makeTextureEntry(entryPtr) {
{{{ gpu.makeCheck('entryPtr') }}}
var sampleTypeInt =
{{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUTextureBindingLayout.sampleType) }}};
if (!sampleTypeInt) return undefined;
return {
"sampleType": WebGPU.TextureSampleType[sampleTypeInt],
"viewDimension": WebGPU.TextureViewDimension[
{{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUTextureBindingLayout.viewDimension) }}}],
"multisampled":
{{{ gpu.makeGetBool('entryPtr', C_STRUCTS.WGPUTextureBindingLayout.multisampled) }}},
};
}
function makeStorageTextureEntry(entryPtr) {
{{{ gpu.makeCheck('entryPtr') }}}
var accessInt =
{{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUStorageTextureBindingLayout.access) }}}