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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.
*/
{{{ (function() {
// Helper functions for code generation
global.gpu = {
makeInitManager: function(type) {
var mgr = 'this.mgr' + type
return mgr + ' = ' + mgr + ' || makeManager();';
},
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;
},
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, 'i32', false, true);
},
makeGetU64: function(struct, offset) {
var l = makeGetValue(struct, offset, 'i32', false, true);
var h = makeGetValue('(' + struct + ' + 4)', offset, 'i32', false, true)
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.
PresentMode: {
Fifo: 2,
},
SType: {
SurfaceDescriptorFromCanvasHTMLSelector: 4,
ShaderModuleSPIRVDescriptor: 5,
ShaderModuleWGSLDescriptor: 6,
},
};
return null;
})(); }}}
var LibraryWebGPU = {
$WebGPU: {
initManagers: function() {
if (this["mgrDevice"]) return;
function makeManager() {
return {
objects: {},
nextId: 1,
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;
},
get: function(id) {
if (id === 0) return undefined;
var o = this.objects[id];
{{{ gpu.makeCheckDefined('o') }}}
return o.object;
},
reference: function(id) {
var o = this.objects[id];
{{{ gpu.makeCheckDefined('o') }}}
o.refcount++;
},
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') }}}
this["mgrDevice"] = this["mgrDevice"] || makeManager();
{{{ gpu.makeInitManager('Queue') }}}
{{{ gpu.makeInitManager('Fence') }}}
{{{ 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, 'float') }}},
"g": {{{ makeGetValue('ptr', 4, 'float') }}},
"b": {{{ makeGetValue('ptr', 8, 'float') }}},
"a": {{{ makeGetValue('ptr', 12, 'float') }}},
};
},
makeExtent3D: function(ptr) {
return {
"width": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUExtent3D.width) }}},
"height": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUExtent3D.height) }}},
"depth": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUExtent3D.depth) }}},
};
},
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) }}},
};
},
makeTextureCopyView: function(ptr) {
{{{ gpu.makeCheckDescriptor('ptr') }}}
return {
"texture": this.mgrTexture.get(
{{{ makeGetValue('ptr', C_STRUCTS.WGPUTextureCopyView.texture, '*') }}}),
"mipLevel": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUTextureCopyView.mipLevel, '*') }}},
"origin": WebGPU.makeOrigin3D(ptr + {{{ C_STRUCTS.WGPUTextureCopyView.origin }}}),
};
},
makeTextureDataLayout: function(ptr) {
{{{ gpu.makeCheckDescriptor('ptr') }}}
return {
"offset": {{{ gpu.makeGetU64('ptr', C_STRUCTS.WGPUTextureDataLayout.offset) }}},
"bytesPerRow": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUTextureDataLayout.bytesPerRow) }}},
"rowsPerImage": {{{ gpu.makeGetU32('ptr', C_STRUCTS.WGPUTextureDataLayout.rowsPerImage) }}},
};
},
makeBufferCopyView: function(ptr) {
{{{ gpu.makeCheckDescriptor('ptr') }}}
var layoutPtr = ptr + {{{ C_STRUCTS.WGPUBufferCopyView.layout }}};
var bufferCopyView = this.makeTextureDataLayout(layoutPtr);
bufferCopyView["buffer"] = this.mgrBuffer.get(
{{{ makeGetValue('ptr', C_STRUCTS.WGPUBufferCopyView.buffer, '*') }}});
return bufferCopyView;
},
makeProgrammableStageDescriptor: function(ptr) {
if (ptr === 0) return undefined;
{{{ gpu.makeCheckDescriptor('ptr') }}}
return {
"module": WebGPU.mgrShaderModule.get(
{{{ makeGetValue('ptr', C_STRUCTS.WGPUProgrammableStageDescriptor.module, '*') }}}),
"entryPoint": UTF8ToString(
{{{ makeGetValue('ptr', C_STRUCTS.WGPUProgrammableStageDescriptor.entryPoint, '*') }}}),
};
},
// maps deviceId to the queueId of the device's defaultQueue
defaultQueues: {
0: 0
},
// This section is auto-generated:
// https://dawn.googlesource.com/dawn/+/refs/heads/master/generator/templates/library_webgpu_enum_tables.json
AddressMode: [
'repeat',
'mirror-repeat',
'clamp-to-edge',
],
BindingType: [
'uniform-buffer',
'storage-buffer',
'readonly-storage-buffer',
'sampler',
'comparison-sampler',
'sampled-texture',
'multisampled-texture',
'readonly-storage-texture',
'writeonly-storage-texture',
],
BlendFactor: [
'zero',
'one',
'src-color',
'one-minus-src-color',
'src-alpha',
'one-minus-src-alpha',
'dst-color',
'one-minus-dst-color',
'dst-alpha',
'one-minus-dst-alpha',
'src-alpha-saturated',
'blend-color',
'one-minus-blend-color',
],
BlendOperation: [
'add',
'subtract',
'reverse-subtract',
'min',
'max',
],
BufferMapAsyncStatus: [
'success',
'error',
'unknown',
'device-lost',
],
CompareFunction: [
undefined,
'never',
'less',
'less-equal',
'greater',
'greater-equal',
'equal',
'not-equal',
'always',
],
CullMode: [
'none',
'front',
'back',
],
ErrorFilter: [
'none',
'validation',
'out-of-memory',
],
ErrorType: [
'no-error',
'validation',
'out-of-memory',
'unknown',
'device-lost',
],
FenceCompletionStatus: [
'success',
'error',
'unknown',
'device-lost',
],
FilterMode: [
'nearest',
'linear',
],
FrontFace: [
'ccw',
'cw',
],
IndexFormat: [
undefined,
'uint16',
'uint32',
],
InputStepMode: [
'vertex',
'instance',
],
LoadOp: [
'clear',
'load',
],
PipelineStatisticName: [
'vertex-shader-invocations',
'clipper-invocations',
'clipper-primitives-out',
'fragment-shader-invocations',
'compute-shader-invocations',
],
PrimitiveTopology: [
'point-list',
'line-list',
'line-strip',
'triangle-list',
'triangle-strip',
],
QueryType: [
'occlusion',
'pipeline-statistics',
'timestamp',
],
StencilOperation: [
'keep',
'zero',
'replace',
'invert',
'increment-clamp',
'decrement-clamp',
'increment-wrap',
'decrement-wrap',
],
StoreOp: [
'store',
'clear',
],
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',
'depth32float',
'depth24plus',
'depth24plus-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',
],
TextureViewDimension: [
undefined,
'1d',
'2d',
'2d-array',
'cube',
'cube-array',
'3d',
],
VertexFormat: [
'uchar2',
'uchar4',
'char2',
'char4',
'uchar2norm',
'uchar4norm',
'char2norm',
'char4norm',
'ushort2',
'ushort4',
'short2',
'short4',
'ushort2norm',
'ushort4norm',
'short2norm',
'short4norm',
'half2',
'half4',
'float',
'float2',
'float3',
'float4',
'uint',
'uint2',
'uint3',
'uint4',
'int',
'int2',
'int3',
'int4',
],
},
// *Reference/*Release
{{{ gpu.makeReferenceRelease('Surface') }}}
{{{ gpu.makeReferenceRelease('SwapChain') }}}
{{{ gpu.makeReferenceRelease('Device') }}}
{{{ gpu.makeReferenceRelease('Queue') }}}
{{{ gpu.makeReferenceRelease('Fence') }}}
{{{ 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
wgpuDeviceGetDefaultQueue: function(deviceId) {
var queueId = WebGPU.defaultQueues[deviceId];
#if ASSERTIONS
assert(queueId != 0, 'got invalid queue');
#endif
if (queueId === undefined) {
var device = WebGPU["mgrDevice"].get(deviceId);
WebGPU.defaultQueues[deviceId] = WebGPU.mgrQueue.create(device["defaultQueue"]);
queueId = WebGPU.defaultQueues[deviceId];
} else {
WebGPU.mgrQueue.reference(queueId);
}
return queueId;
},
// 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 id = WebGPU.mgrBuffer.create(device["createBuffer"](desc));
if (mappedAtCreation) {
var bufferWrapper = WebGPU.mgrBuffer.objects[id];
bufferWrapper.mapMode = 2 /* WGPUMapMode_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 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 makeEntry(entryPtr) {
{{{ gpu.makeCheck('entryPtr') }}}
return {
"binding":
{{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBindGroupLayoutEntry.binding) }}},
"visibility":
{{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBindGroupLayoutEntry.visibility) }}},
"type": WebGPU.BindingType[
{{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBindGroupLayoutEntry.type) }}}],
"viewDimension": WebGPU.TextureViewDimension[
{{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBindGroupLayoutEntry.viewDimension) }}}],
"textureComponentType": WebGPU.TextureComponentType[
{{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBindGroupLayoutEntry.textureComponentType) }}}],
"storageTextureFormat": WebGPU.TextureFormat[
{{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBindGroupLayoutEntry.storageTextureFormat) }}}],
"hasDynamicOffset":
{{{ gpu.makeGetBool('entryPtr', C_STRUCTS.WGPUBindGroupLayoutEntry.hasDynamicOffset) }}},
"minBufferBindingSize":
{{{ gpu.makeGetU64('entryPtr', C_STRUCTS.WGPUBindGroupLayoutEntry.minBufferBindingSize) }}},
};
}
function makeEntries(count, entriesPtrs) {
var entries = [];
for (var i = 0; i < count; ++i) {
entries.push(makeEntry(entriesPtrs +
{{{ C_STRUCTS.WGPUBindGroupLayoutEntry.__size__ }}} * i));
}
return entries;
}
var desc = {
"entries": makeEntries(
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUBindGroupLayoutDescriptor.entryCount) }}},
{{{ makeGetValue('descriptor', C_STRUCTS.WGPUBindGroupLayoutDescriptor.entries, '*') }}}
),
};
var labelPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPUBindGroupLayoutDescriptor.label, '*') }}};
if (labelPtr) desc["label"] = UTF8ToString(labelPtr);
var device = WebGPU["mgrDevice"].get(deviceId);
return WebGPU.mgrBindGroupLayout.create(device["createBindGroupLayout"](desc));
},
wgpuDeviceCreateBindGroup: function(deviceId, descriptor) {
{{{ gpu.makeCheckDescriptor('descriptor') }}}
function makeEntry(entryPtr) {
{{{ gpu.makeCheck('entryPtr') }}}
var bufferId = {{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBindGroupEntry.buffer) }}};
var samplerId = {{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBindGroupEntry.sampler) }}};
var textureViewId = {{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBindGroupEntry.textureView) }}};
#if ASSERTIONS
assert((bufferId != 0) + (samplerId != 0) + (textureViewId != 0) == 1);
#endif
var binding = {{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBindGroupLayoutEntry.binding) }}};
if (bufferId != 0) {
var size = undefined;
// Handle WGPU_WHOLE_SIZE.
var sizePart1 = {{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBindGroupEntry.size) }}};
var sizePart2 = {{{ gpu.makeGetU32('entryPtr', C_STRUCTS.WGPUBindGroupEntry.size + 4) }}};
if (sizePart1 != 0xFFFFFFFF || sizePart2 != 0xFFFFFFFF) {
size = {{{ gpu.makeGetU64('entryPtr', C_STRUCTS.WGPUBindGroupEntry.size) }}};
}
return {
"binding": binding,
"resource": {
"buffer": WebGPU.mgrBuffer.get(bufferId),
"offset": {{{ gpu.makeGetU64('entryPtr', C_STRUCTS.WGPUBindGroupEntry.offset) }}},
"size": size,
},
};
} else if (samplerId != 0) {
return {
"binding": binding,
"resource": WebGPU.mgrSampler.get(samplerId),
};
} else {
return {
"binding": binding,
"resource": WebGPU.mgrTextureView.get(textureViewId),
};
}
}
function makeEntries(count, entriesPtrs) {
var entries = [];
for (var i = 0; i < count; ++i) {
entries.push(makeEntry(entriesPtrs +
{{{C_STRUCTS.WGPUBindGroupEntry.__size__}}} * i));
}
return entries;
}
var desc = {
"label": undefined,
"layout": WebGPU.mgrBindGroupLayout.get(
{{{ makeGetValue('descriptor', C_STRUCTS.WGPUBindGroupDescriptor.layout, '*') }}}),
"entries": makeEntries(
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUBindGroupDescriptor.entryCount) }}},
{{{ makeGetValue('descriptor', C_STRUCTS.WGPUBindGroupDescriptor.entries, '*') }}}
),
};
var labelPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPUBindGroupDescriptor.label, '*') }}};
if (labelPtr) desc["label"] = UTF8ToString(labelPtr);
var device = WebGPU["mgrDevice"].get(deviceId);
return WebGPU.mgrBindGroup.create(device["createBindGroup"](desc));
},
wgpuDeviceCreatePipelineLayout: function(deviceId, descriptor) {
{{{ gpu.makeCheckDescriptor('descriptor') }}}
var bglCount = {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUPipelineLayoutDescriptor.bindGroupLayoutCount) }}};
var bglPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPUPipelineLayoutDescriptor.bindGroupLayouts, '*') }}};
var bgls = [];
for (var i = 0; i < bglCount; ++i) {
bgls.push(WebGPU.mgrBindGroupLayout.get(
{{{ makeGetValue('bglPtr', '4 * i', '*') }}}));
}
var desc = {
"label": undefined,
"bindGroupLayouts": bgls,
};
var labelPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPUPipelineLayoutDescriptor.label, '*') }}};
if (labelPtr) desc["label"] = UTF8ToString(labelPtr);
var device = WebGPU["mgrDevice"].get(deviceId);
return WebGPU.mgrPipelineLayout.create(device["createPipelineLayout"](desc));
},
wgpuDeviceCreateQuerySet: function(deviceId, descriptor) {
{{{ gpu.makeCheckDescriptor('descriptor') }}}
var pipelineStatistics;
var pipelineStatisticsCount =
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUQuerySetDescriptor.pipelineStatisticsCount) }}};
if (pipelineStatisticsCount) {
var pipelineStatisticsPtr =
{{{ makeGetValue('descriptor', C_STRUCTS.WGPUQuerySetDescriptor.pipelineStatistics, '*') }}};
pipelineStatistics = [];
for (var i = 0; i < pipelineStatisticsCount; ++i) {
pipelineStatistics.push(WebGPU.PipelineStatisticName[
{{{ gpu.makeGetU32('pipelineStatisticsPtr', '4 * i') }}}]);
}
}
var desc = {
"type": WebGPU.QueryType[
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUQuerySetDescriptor.type) }}}],
"count": {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUQuerySetDescriptor.count) }}},
"pipelineStatistics": pipelineStatistics,
};
var device = WebGPU["mgrDevice"].get(deviceId);
device["createQuerySet"](descriptor);
},
wgpuDeviceCreateComputePipeline: function(deviceId, descriptor) {
{{{ gpu.makeCheckDescriptor('descriptor') }}}
var desc = {
"label": undefined,
"layout": WebGPU.mgrPipelineLayout.get(
{{{ makeGetValue('descriptor', C_STRUCTS.WGPUComputePipelineDescriptor.layout, '*') }}}),
"computeStage": WebGPU.makeProgrammableStageDescriptor(
descriptor + {{{ C_STRUCTS.WGPUComputePipelineDescriptor.computeStage }}}),
};
var labelPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPUComputePipelineDescriptor.label, '*') }}};
if (labelPtr) desc["label"] = UTF8ToString(labelPtr);
var device = WebGPU["mgrDevice"].get(deviceId);
return WebGPU.mgrComputePipeline.create(device["createComputePipeline"](desc));
},
wgpuDeviceCreateRenderPipeline: function(deviceId, descriptor) {
{{{ gpu.makeCheckDescriptor('descriptor') }}}
function makeRasterizationState(rsPtr) {
if (rsPtr === 0) return undefined;
{{{ gpu.makeCheckDescriptor('rsPtr') }}}
return {
"frontFace": WebGPU.FrontFace[
{{{ gpu.makeGetU32('rsPtr', C_STRUCTS.WGPURasterizationStateDescriptor.frontFace) }}}],
"cullMode": WebGPU.CullMode[
{{{ gpu.makeGetU32('rsPtr', C_STRUCTS.WGPURasterizationStateDescriptor.cullMode) }}}],
};
}
function makeBlendDescriptor(bdPtr) {
if (bdPtr === 0) return undefined;
return {
"operation": WebGPU.BlendOperation[
{{{ gpu.makeGetU32('bdPtr', C_STRUCTS.WGPUBlendDescriptor.operation) }}}],
"srcFactor": WebGPU.BlendFactor[
{{{ gpu.makeGetU32('bdPtr', C_STRUCTS.WGPUBlendDescriptor.srcFactor) }}}],
"dstFactor": WebGPU.BlendFactor[
{{{ gpu.makeGetU32('bdPtr', C_STRUCTS.WGPUBlendDescriptor.dstFactor) }}}],
};
}
function makeColorState(csPtr) {
{{{ gpu.makeCheckDescriptor('csPtr') }}}
return {
"format": WebGPU.TextureFormat[
{{{ gpu.makeGetU32('csPtr', C_STRUCTS.WGPUColorStateDescriptor.format) }}}],
"alphaBlend": makeBlendDescriptor(csPtr + {{{ C_STRUCTS.WGPUColorStateDescriptor.alphaBlend }}}),
"colorBlend": makeBlendDescriptor(csPtr + {{{ C_STRUCTS.WGPUColorStateDescriptor.colorBlend }}}),
"writeMask": {{{ gpu.makeGetU32('csPtr', C_STRUCTS.WGPUColorStateDescriptor.writeMask) }}},
};
}
function makeColorStates(count, csPtr) {
if (count === 0) return undefined;
var states = [];
for (var i = 0; i < count; ++i) {
states.push(makeColorState(csPtr + {{{ C_STRUCTS.WGPUColorStateDescriptor.__size__ }}} * i));
}
return states;
}
function makeStencilStateFace(ssfPtr) {
{{{ gpu.makeCheck('ssfPtr') }}}
return {
"compare": WebGPU.CompareFunction[
{{{ gpu.makeGetU32('ssfPtr', C_STRUCTS.WGPUStencilStateFaceDescriptor.compare) }}}],
"failOp": WebGPU.StencilOperation[
{{{ gpu.makeGetU32('ssfPtr', C_STRUCTS.WGPUStencilStateFaceDescriptor.failOp) }}}],
"depthFailOp": WebGPU.StencilOperation[
{{{ gpu.makeGetU32('ssfPtr', C_STRUCTS.WGPUStencilStateFaceDescriptor.depthFailOp) }}}],
"passOp": WebGPU.StencilOperation[
{{{ gpu.makeGetU32('ssfPtr', C_STRUCTS.WGPUStencilStateFaceDescriptor.passOp) }}}],
};
}
function makeDepthStencilState(dssPtr) {
if (dssPtr === 0) return undefined;
{{{ gpu.makeCheck('dssPtr') }}}
return {
"format": WebGPU.TextureFormat[
{{{ gpu.makeGetU32('dssPtr', C_STRUCTS.WGPUDepthStencilStateDescriptor.format) }}}],
"depthWriteEnabled": {{{ gpu.makeGetBool('dssPtr', C_STRUCTS.WGPUDepthStencilStateDescriptor.depthWriteEnabled) }}},
"depthCompare": WebGPU.CompareFunction[
{{{ gpu.makeGetU32('dssPtr', C_STRUCTS.WGPUDepthStencilStateDescriptor.depthCompare) }}}],
"stencilFront": makeStencilStateFace(dssPtr + {{{ C_STRUCTS.WGPUDepthStencilStateDescriptor.stencilFront }}}),
"stencilBack": makeStencilStateFace(dssPtr + {{{ C_STRUCTS.WGPUDepthStencilStateDescriptor.stencilBack }}}),
"stencilReadMask": {{{ gpu.makeGetU32('dssPtr', C_STRUCTS.WGPUDepthStencilStateDescriptor.stencilReadMask) }}},
"stencilWriteMask": {{{ gpu.makeGetU32('dssPtr', C_STRUCTS.WGPUDepthStencilStateDescriptor.stencilWriteMask) }}},
};
}
function makeVertexAttribute(vaPtr) {
{{{ gpu.makeCheck('vaPtr') }}}
return {
"format": WebGPU.VertexFormat[
{{{ gpu.makeGetU32('vaPtr', C_STRUCTS.WGPUVertexAttributeDescriptor.format) }}}],
"offset": {{{ gpu.makeGetU64('vaPtr', C_STRUCTS.WGPUVertexAttributeDescriptor.offset) }}},
"shaderLocation": {{{ gpu.makeGetU32('vaPtr', C_STRUCTS.WGPUVertexAttributeDescriptor.shaderLocation) }}},
};
}
function makeVertexAttributes(count, vaArrayPtr) {
var vas = [];
for (var i = 0; i < count; ++i) {
vas.push(makeVertexAttribute(vaArrayPtr + i * {{{ C_STRUCTS.WGPUVertexAttributeDescriptor.__size__ }}}));
}
return vas;
}
function makeVertexBuffer(vbPtr) {
if (vbPtr === 0) return undefined;
return {
"arrayStride": {{{ gpu.makeGetU64('vbPtr', C_STRUCTS.WGPUVertexBufferLayoutDescriptor.arrayStride) }}},
"stepMode": WebGPU.InputStepMode[
{{{ gpu.makeGetU32('vbPtr', C_STRUCTS.WGPUVertexBufferLayoutDescriptor.stepMode) }}}],
"attributes": makeVertexAttributes(
{{{ gpu.makeGetU32('vbPtr', C_STRUCTS.WGPUVertexBufferLayoutDescriptor.attributeCount) }}},
{{{ makeGetValue('vbPtr', C_STRUCTS.WGPUVertexBufferLayoutDescriptor.attributes, '*') }}}),
};
}
function makeVertexBuffers(count, vbArrayPtr) {
if (count === 0) return undefined;
var vbs = [];
for (var i = 0; i < count; ++i) {
vbs.push(makeVertexBuffer(vbArrayPtr + i * {{{ C_STRUCTS.WGPUVertexBufferLayoutDescriptor.__size__ }}}));
}
return vbs;
}
function makeVertexState(viPtr) {
if (viPtr === 0) return undefined;
{{{ gpu.makeCheckDescriptor('viPtr') }}}
return {
"indexFormat": WebGPU.IndexFormat[
{{{ gpu.makeGetU32('viPtr', C_STRUCTS.WGPUVertexStateDescriptor.indexFormat) }}}],
"vertexBuffers": makeVertexBuffers(
{{{ gpu.makeGetU32('viPtr', C_STRUCTS.WGPUVertexStateDescriptor.vertexBufferCount) }}},
{{{ makeGetValue('viPtr', C_STRUCTS.WGPUVertexStateDescriptor.vertexBuffers, '*') }}}),
};
}
var desc = {
"label": undefined,
"layout": WebGPU.mgrPipelineLayout.get(
{{{ makeGetValue('descriptor', C_STRUCTS.WGPURenderPipelineDescriptor.layout, '*') }}}),
"vertexStage": WebGPU.makeProgrammableStageDescriptor(
descriptor + {{{ C_STRUCTS.WGPURenderPipelineDescriptor.vertexStage }}}),
"fragmentStage": WebGPU.makeProgrammableStageDescriptor(
{{{ makeGetValue('descriptor', C_STRUCTS.WGPURenderPipelineDescriptor.fragmentStage, '*') }}}),
"primitiveTopology": WebGPU.PrimitiveTopology[
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPURenderPipelineDescriptor.primitiveTopology) }}}],
"rasterizationState": makeRasterizationState(
{{{ makeGetValue('descriptor', C_STRUCTS.WGPURenderPipelineDescriptor.rasterizationState, '*') }}}),
"colorStates": makeColorStates(
{{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPURenderPipelineDescriptor.colorStateCount) }}},
{{{ makeGetValue('descriptor', C_STRUCTS.WGPURenderPipelineDescriptor.colorStates, '*') }}}),
"depthStencilState": makeDepthStencilState(
{{{ makeGetValue('descriptor', C_STRUCTS.WGPURenderPipelineDescriptor.depthStencilState, '*') }}}),
"vertexState": makeVertexState(
{{{ makeGetValue('descriptor', C_STRUCTS.WGPURenderPipelineDescriptor.vertexState, '*') }}}),
"sampleCount": {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPURenderPipelineDescriptor.sampleCount) }}},
"sampleMask": {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPURenderPipelineDescriptor.sampleMask) }}},
"alphaToCoverageEnabled": {{{ gpu.makeGetBool('descriptor', C_STRUCTS.WGPURenderPipelineDescriptor.alphaToCoverageEnabled) }}},
};
var labelPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPURenderPipelineDescriptor.label, '*') }}};
if (labelPtr) desc["label"] = UTF8ToString(labelPtr);
var device = WebGPU["mgrDevice"].get(deviceId);
return WebGPU.mgrRenderPipeline.create(device["createRenderPipeline"](desc));
},
wgpuDeviceCreateShaderModule: function(deviceId, descriptor) {
{{{ gpu.makeCheck('descriptor') }}}
var nextInChainPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPUShaderModuleDescriptor.nextInChain, '*') }}};
#if ASSERTIONS
assert(nextInChainPtr !== 0);
#endif
var sType = {{{ gpu.makeGetU32('nextInChainPtr', C_STRUCTS.WGPUChainedStruct.sType) }}};
#if ASSERTIONS
assert(sType === {{{ gpu.SType.ShaderModuleSPIRVDescriptor }}}
|| sType === {{{ gpu.SType.ShaderModuleWGSLDescriptor }}});
#endif
var desc = {
"label": undefined,
"code": "",
};
var labelPtr = {{{ makeGetValue('descriptor', C_STRUCTS.WGPUShaderModuleDescriptor.label, '*') }}};
if (labelPtr) desc["label"] = UTF8ToString(labelPtr);
if (sType === {{{ gpu.SType.ShaderModuleSPIRVDescriptor }}}) {
var count = {{{ gpu.makeGetU32('nextInChainPtr', C_STRUCTS.WGPUShaderModuleSPIRVDescriptor.codeSize) }}};
var start = {{{ makeGetValue('nextInChainPtr', C_STRUCTS.WGPUShaderModuleSPIRVDescriptor.code, '*') }}};
#if USE_PTHREADS
// Chrome can't currently handle a SharedArrayBuffer view here, so make a copy.
desc["code"] = HEAPU32.slice(start >> 2, (start >> 2) + count);
#else
desc["code"] = HEAPU32.subarray(start >> 2, (start >> 2) + count);
#endif
} else if (sType === {{{ gpu.SType.ShaderModuleWGSLDescriptor }}}) {
var sourcePtr = {{{ makeGetValue('nextInChainPtr', C_STRUCTS.WGPUShaderModuleWGSLDescriptor.source, '*') }}};
if (sourcePtr) {
desc["code"] = UTF8ToString(sourcePtr);
}
}