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 | 1x 16216x 16216x 596x 596x 596x 596x 298x 298x 298x 298x 596x 596x 596x 596x 596x 596x 16216x 1x 16216x 16216x 16216x 16216x 1x | import macro from 'vtk.js/Sources/macros';
const { vtkErrorMacro } = macro;
// export const SHADER_TYPES = ['Vertex', 'Fragment', 'Geometry', 'Unknown'];
// ----------------------------------------------------------------------------
// vtkShader methods
// ----------------------------------------------------------------------------
function vtkShader(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkShader');
publicAPI.compile = () => {
let stype = model.context.VERTEX_SHADER;
Iif (
!model.source ||
!model.source.length ||
model.shaderType === 'Unknown'
) {
return false;
}
// Ensure we delete the previous shader if necessary.
Iif (model.handle !== 0) {
model.context.deleteShader(model.handle);
model.handle = 0;
}
switch (model.shaderType) {
// case vtkShader::Geometry:
// type = GL_GEOMETRY_SHADER;
// break;
case 'Fragment':
stype = model.context.FRAGMENT_SHADER;
break;
case 'Vertex':
default:
stype = model.context.VERTEX_SHADER;
break;
}
model.handle = model.context.createShader(stype);
model.context.shaderSource(model.handle, model.source);
model.context.compileShader(model.handle);
const isCompiled = model.context.getShaderParameter(
model.handle,
model.context.COMPILE_STATUS
);
Iif (!isCompiled) {
const lastError = model.context.getShaderInfoLog(model.handle);
vtkErrorMacro(`Error compiling shader '${model.source}': ${lastError}`);
model.context.deleteShader(model.handle);
model.handle = 0;
return false;
}
// The shader compiled, store its handle and return success.
return true;
};
publicAPI.cleanup = () => {
if (model.shaderType === 'Unknown' || model.handle === 0) {
return;
}
model.context.deleteShader(model.handle);
model.handle = 0;
model.dirty = true;
};
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
shaderType: 'Unknown',
source: '',
error: '',
handle: 0,
dirty: false,
context: null,
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Build VTK API
macro.obj(publicAPI, model);
macro.setGet(publicAPI, model, [
'shaderType',
'source',
'error',
'handle',
'context',
]);
// Object methods
vtkShader(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend, 'vtkShader');
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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