All files / Sources/Rendering/WebGPU/TextureView index.js

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
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1x
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1x
 
 
 
 
 
import macro from 'vtk.js/Sources/macros';
import vtkWebGPUSampler from 'vtk.js/Sources/Rendering/WebGPU/Sampler';
import vtkWebGPUTypes from 'vtk.js/Sources/Rendering/WebGPU/Types';
 
// ----------------------------------------------------------------------------
// vtkWebGPUTextureView methods
// ----------------------------------------------------------------------------
 
/* eslint-disable no-bitwise */
 
function vtkWebGPUTextureView(publicAPI, model) {
  // Set our className
  model.classHierarchy.push('vtkWebGPUTextureView');
 
  publicAPI.create = (texture, options) => {
    model.texture = texture;
    model.options = options;
    model.options.dimension = model.options.dimension || '2d';
    model.options.label = model.label;
    model.textureHandle = texture.getHandle();
    model.handle = model.textureHandle.createView(model.options);
    model.bindGroupLayoutEntry.texture.viewDimension = model.options.dimension;
    const tDetails = vtkWebGPUTypes.getDetailsFromTextureFormat(
      model.texture.getFormat()
    );
    model.bindGroupLayoutEntry.texture.sampleType = tDetails.sampleType;
  };
 
  publicAPI.createFromTextureHandle = (textureHandle, options) => {
    model.texture = null;
    model.options = options;
    model.options.dimension = model.options.dimension || '2d';
    model.options.label = model.label;
    model.textureHandle = textureHandle;
    model.handle = model.textureHandle.createView(model.options);
    model.bindGroupLayoutEntry.texture.viewDimension = model.options.dimension;
    const tDetails = vtkWebGPUTypes.getDetailsFromTextureFormat(options.format);
    model.bindGroupLayoutEntry.texture.sampleType = tDetails.sampleType;
    model.bindGroupTime.modified();
  };
 
  publicAPI.getBindGroupEntry = () => {
    const foo = {
      resource: publicAPI.getHandle(),
    };
    return foo;
  };
 
  publicAPI.getShaderCode = (binding, group) => {
    let ttype = 'f32';
    if (model.bindGroupLayoutEntry.texture.sampleType === 'sint') {
      ttype = 'i32';
    } else if (model.bindGroupLayoutEntry.texture.sampleType === 'uint') {
      ttype = 'u32';
    }
    let result = `@binding(${binding}) @group(${group}) var ${model.label}: texture_${model.options.dimension}<${ttype}>;`;
    if (model.bindGroupLayoutEntry.texture.sampleType === 'depth') {
      result = `@binding(${binding}) @group(${group}) var ${model.label}: texture_depth_${model.options.dimension};`;
    }
    return result;
  };
 
  publicAPI.addSampler = (device, options) => {
    const newSamp = vtkWebGPUSampler.newInstance({
      label: `${model.label}Sampler`,
    });
    newSamp.create(device, options);
    publicAPI.setSampler(newSamp);
  };
 
  publicAPI.getBindGroupTime = () => {
    // check if the handle changed
    if (model.texture && model.texture.getHandle() !== model.textureHandle) {
      model.textureHandle = model.texture.getHandle();
      model.handle = model.textureHandle.createView(model.options);
      model.bindGroupTime.modified();
    }
    return model.bindGroupTime;
  };
 
  // if the texture has changed then get a new view
  publicAPI.getHandle = () => {
    if (model.texture && model.texture.getHandle() !== model.textureHandle) {
      model.textureHandle = model.texture.getHandle();
      model.handle = model.textureHandle.createView(model.options);
      model.bindGroupTime.modified();
    }
    return model.handle;
  };
}
 
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
 
const DEFAULT_VALUES = {
  texture: null,
  handle: null,
  sampler: null,
  label: null,
};
 
// ----------------------------------------------------------------------------
 
export function extend(publicAPI, model, initialValues = {}) {
  Object.assign(model, DEFAULT_VALUES, initialValues);
 
  // Object methods
  macro.obj(publicAPI, model);
 
  model.bindGroupLayoutEntry = {
    /* eslint-disable no-undef */
    visibility: GPUShaderStage.VERTEX | GPUShaderStage.FRAGMENT,
    /* eslint-enable no-undef */
    texture: {
      sampleType: 'float',
      viewDimension: '2d',
      // multisampled: false,
    },
  };
 
  model.bindGroupTime = {};
  macro.obj(model.bindGroupTime, { mtime: 0 });
 
  macro.get(publicAPI, model, ['bindGroupTime', 'texture']);
  macro.setGet(publicAPI, model, ['bindGroupLayoutEntry', 'label', 'sampler']);
 
  vtkWebGPUTextureView(publicAPI, model);
}
 
// ----------------------------------------------------------------------------
 
export const newInstance = macro.newInstance(extend);
 
// ----------------------------------------------------------------------------
 
export default { newInstance, extend };