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| 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 | 1x 1x 1x | import macro from 'vtk.js/Sources/macros';
import vtkDataArray from 'vtk.js/Sources/Common/Core/DataArray';
import vtkWebGPUTexture from 'vtk.js/Sources/Rendering/WebGPU/Texture';
const { VtkDataTypes } = vtkDataArray;
// ----------------------------------------------------------------------------
// Global methods
// ----------------------------------------------------------------------------
// ----------------------------------------------------------------------------
// vtkWebGPUTextureManager methods
// ----------------------------------------------------------------------------
function vtkWebGPUTextureManager(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkWebGPUTextureManager');
// fills in request values based on what is missing/provided
function _fillRequest(req) {
// fill in values based on imageData if the request has it
if (req.imageData) {
req.dataArray = req.imageData.getPointData().getScalars();
req.time = req.dataArray.getMTime();
req.nativeArray = req.dataArray.getData();
const dims = req.imageData.getDimensions();
req.width = dims[0];
req.height = dims[1];
req.depth = dims[2];
const numComp = req.dataArray.getNumberOfComponents();
// todo fix handling of 3 component
switch (numComp) {
case 1:
req.format = 'r';
break;
case 2:
req.format = 'rg';
break;
case 3:
case 4:
default:
req.format = 'rgba';
break;
}
const dataType = req.dataArray.getDataType();
switch (dataType) {
case VtkDataTypes.UNSIGNED_CHAR:
req.format += '8unorm';
break;
// todo extend to other types that are not filterable
// as they can be useful
case VtkDataTypes.FLOAT:
case VtkDataTypes.UNSIGNED_INT:
case VtkDataTypes.INT:
case VtkDataTypes.DOUBLE:
case VtkDataTypes.UNSIGNED_SHORT:
case VtkDataTypes.SHORT:
default:
req.format += '16float';
break;
}
}
// fill in values based on image if the request has it
if (req.image) {
req.width = req.image.width;
req.height = req.image.height;
req.depth = 1;
req.format = 'rgba8unorm';
}
// fill in based on js imageData
if (req.jsImageData) {
req.width = req.jsImageData.width;
req.height = req.jsImageData.height;
req.depth = 1;
req.format = 'rgba8unorm';
req.flip = true;
req.nativeArray = req.jsImageData.data;
}
if (req.canvas) {
req.width = req.canvas.width;
req.height = req.canvas.height;
req.depth = 1;
req.format = 'rgba8unorm';
req.flip = true;
/* eslint-disable no-undef */
/* eslint-disable no-bitwise */
req.usage =
GPUTextureUsage.TEXTURE_BINDING |
GPUTextureUsage.COPY_DST |
GPUTextureUsage.RENDER_ATTACHMENT;
/* eslint-enable no-undef */
/* eslint-enable no-bitwise */
}
}
// create a texture (used by getTexture)
function _createTexture(req) {
const newTex = vtkWebGPUTexture.newInstance();
newTex.create(model.device, {
width: req.width,
height: req.height,
depth: req.depth,
format: req.format,
usage: req.usage,
mipLevel: req.mipLevel,
});
// fill the texture if we have data
if (req.nativeArray || req.image || req.canvas) {
newTex.writeImageData(req);
}
return newTex;
}
// get a texture or create it if not cached.
// this is the main entry point
publicAPI.getTexture = (req) => {
// if we have a source the get/create/cache the texture
if (req.hash) {
// if a matching texture already exists then return it
return model.device.getCachedObject(req.hash, _createTexture, req);
}
return _createTexture(req);
};
publicAPI.getTextureForImageData = (imgData) => {
const treq = { time: imgData.getMTime() };
treq.imageData = imgData;
// fill out the req time and format based on imageData/image
_fillRequest(treq);
treq.hash = treq.time + treq.format + treq.mipLevel;
return model.device.getTextureManager().getTexture(treq);
};
publicAPI.getTextureForVTKTexture = (srcTexture) => {
const treq = { time: srcTexture.getMTime() };
if (srcTexture.getInputData()) {
treq.imageData = srcTexture.getInputData();
} else if (srcTexture.getImage()) {
treq.image = srcTexture.getImage();
} else if (srcTexture.getJsImageData()) {
treq.jsImageData = srcTexture.getJsImageData();
} else if (srcTexture.getCanvas()) {
treq.canvas = srcTexture.getCanvas();
}
// fill out the req time and format based on imageData/image
_fillRequest(treq);
treq.mipLevel = srcTexture.getMipLevel();
treq.hash = treq.time + treq.format + treq.mipLevel;
return model.device.getTextureManager().getTexture(treq);
};
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
handle: null,
device: null,
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Object methods
macro.obj(publicAPI, model);
macro.setGet(publicAPI, model, ['device']);
vtkWebGPUTextureManager(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend);
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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