Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 | 1x 1x 1x 1x | import macro from 'vtk.js/Sources/macros';
import vtkWebGPUBufferManager from 'vtk.js/Sources/Rendering/WebGPU/BufferManager';
import vtkWebGPUTypes from 'vtk.js/Sources/Rendering/WebGPU/Types';
const { BufferUsage } = vtkWebGPUBufferManager;
const { vtkErrorMacro } = macro;
// ----------------------------------------------------------------------------
// vtkWebGPUStorageBuffer - similar to the UniformBuffer class
// but YOU are responsible for layout issues and alignment.
// The order you add entries is the order they will be layed out
// in memory. But you must follow layout rules.
// ----------------------------------------------------------------------------
// ----------------------------------------------------------------------------
// vtkWebGPUStorageBuffer methods
// ----------------------------------------------------------------------------
function vtkWebGPUStorageBuffer(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkWebGPUStorageBuffer');
publicAPI.addEntry = (name, type) => {
if (model._bufferEntryNames.has(name)) {
vtkErrorMacro(`entry named ${name} already exists`);
return;
}
model._bufferEntryNames.set(name, model.bufferEntries.length);
const sizeInBytes = vtkWebGPUTypes.getByteStrideFromShaderFormat(type);
model.bufferEntries.push({
name,
type,
sizeInBytes,
offset: model.sizeInBytes,
nativeType: vtkWebGPUTypes.getNativeTypeFromShaderFormat(type),
});
model.sizeInBytes += sizeInBytes;
};
publicAPI.send = (device) => {
if (!model._buffer) {
const req = {
nativeArray: model.Float32Array,
usage: BufferUsage.Storage,
label: model.label,
};
model._buffer = device.getBufferManager().getBuffer(req);
model.bindGroupTime.modified();
model._sendTime.modified();
return;
}
device
.getHandle()
.queue.writeBuffer(
model._buffer.getHandle(),
0,
model.arrayBuffer,
0,
model.sizeInBytes * model.numberOfInstances
);
model._sendTime.modified();
};
publicAPI.createView = (type) => {
if (type in model === false) {
if (!model.arrayBuffer) {
model.arrayBuffer = new ArrayBuffer(
model.sizeInBytes * model.numberOfInstances
);
}
model[type] = macro.newTypedArray(type, model.arrayBuffer);
}
};
publicAPI.setValue = (name, instance, val) => {
const idx = model._bufferEntryNames.get(name);
if (idx === undefined) {
vtkErrorMacro(`entry named ${name} not found in UBO`);
return;
}
const entry = model.bufferEntries[idx];
publicAPI.createView(entry.nativeType);
const view = model[entry.nativeType];
view[
(entry.offset + instance * model.sizeInBytes) / view.BYTES_PER_ELEMENT
] = val;
};
publicAPI.setArray = (name, instance, arr) => {
const idx = model._bufferEntryNames.get(name);
if (idx === undefined) {
vtkErrorMacro(`entry named ${name} not found in UBO`);
return;
}
const entry = model.bufferEntries[idx];
publicAPI.createView(entry.nativeType);
const view = model[entry.nativeType];
const ioffset =
(entry.offset + instance * model.sizeInBytes) / view.BYTES_PER_ELEMENT;
for (let i = 0; i < arr.length; i++) {
view[ioffset + i] = arr[i];
}
};
publicAPI.setAllInstancesFromArray = (name, arr) => {
const idx = model._bufferEntryNames.get(name);
if (idx === undefined) {
vtkErrorMacro(`entry named ${name} not found in UBO`);
return;
}
const entry = model.bufferEntries[idx];
publicAPI.createView(entry.nativeType);
const view = model[entry.nativeType];
const numComponents = arr.length / model.numberOfInstances;
for (let inst = 0; inst < model.numberOfInstances; inst++) {
const ioffset =
(entry.offset + inst * model.sizeInBytes) / view.BYTES_PER_ELEMENT;
for (let i = 0; i < numComponents; i++) {
view[ioffset + i] = arr[inst * numComponents + i];
}
}
};
publicAPI.setAllInstancesFromArrayColorToFloat = (name, arr) => {
const idx = model._bufferEntryNames.get(name);
if (idx === undefined) {
vtkErrorMacro(`entry named ${name} not found in UBO`);
return;
}
const entry = model.bufferEntries[idx];
publicAPI.createView(entry.nativeType);
const view = model[entry.nativeType];
const numComponents = arr.length / model.numberOfInstances;
for (let inst = 0; inst < model.numberOfInstances; inst++) {
const ioffset =
(entry.offset + inst * model.sizeInBytes) / view.BYTES_PER_ELEMENT;
for (let i = 0; i < numComponents; i++) {
view[ioffset + i] = arr[inst * numComponents + i] / 255.0;
}
}
};
publicAPI.setAllInstancesFromArray3x3To4x4 = (name, arr) => {
const idx = model._bufferEntryNames.get(name);
if (idx === undefined) {
vtkErrorMacro(`entry named ${name} not found in UBO`);
return;
}
const entry = model.bufferEntries[idx];
publicAPI.createView(entry.nativeType);
const view = model[entry.nativeType];
const numComponents = 9;
for (let inst = 0; inst < model.numberOfInstances; inst++) {
const ioffset =
(entry.offset + inst * model.sizeInBytes) / view.BYTES_PER_ELEMENT;
for (let j = 0; j < 3; j++) {
for (let i = 0; i < 3; i++) {
view[ioffset + j * 4 + i] = arr[inst * numComponents + j * 3 + i];
}
}
}
};
publicAPI.getSendTime = () => model._sendTime.getMTime();
publicAPI.getShaderCode = (binding, group) => {
const lines = [`struct ${model.label}StructEntry\n{`];
for (let i = 0; i < model.bufferEntries.length; i++) {
const entry = model.bufferEntries[i];
lines.push(` ${entry.name}: ${entry.type},`);
}
lines.push(`
};
struct ${model.label}Struct
{
values: array<${model.label}StructEntry>,
};
@binding(${binding}) @group(${group}) var<storage, read> ${model.label}: ${model.label}Struct;
`);
return lines.join('\n');
};
publicAPI.getBindGroupEntry = () => {
const foo = {
resource: {
buffer: model._buffer.getHandle(),
},
};
return foo;
};
publicAPI.clearData = () => {
model.numberOfInstances = 0;
model.sizeInBytes = 0;
model.bufferEntries = [];
model._bufferEntryNames = new Map();
model._buffer = null;
delete model.arrayBuffer;
delete model.Float32Array;
};
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
bufferEntries: null,
bufferEntryNames: null,
sizeInBytes: 0,
label: null,
numberOfInstances: 1,
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Build VTK API
macro.obj(publicAPI, model);
// Internal objects
model._bufferEntryNames = new Map();
model.bufferEntries = [];
model._sendTime = {};
macro.obj(model._sendTime, { mtime: 0 });
model.bindGroupTime = {};
macro.obj(model.bindGroupTime, { mtime: 0 });
// default SSBO desc
model.bindGroupLayoutEntry = model.bindGroupLayoutEntry || {
buffer: {
type: 'read-only-storage',
},
};
macro.get(publicAPI, model, ['bindGroupTime']);
macro.setGet(publicAPI, model, [
'device',
'bindGroupLayoutEntry',
'label',
'numberOfInstances',
'sizeInBytes',
]);
// Object methods
vtkWebGPUStorageBuffer(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend, 'vtkWebGPUStorageBuffer');
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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