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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 | 1x 1x 5185x 11177x 11177x 5185x 5185x 5185x 5185x 5545x 5185x 5107x 11090x 5185x 5185x 1406x 1406x 1108x 1108x 1406x 5185x 1406x 1406x 1406x 1406x 1406x 1406x 1406x 5185x 5553x 5553x 5553x 5185x 5185x 6517x 5185x 5188x 59x 5129x 5129x 5129x 5129x 5129x 5185x 1x 5185x 5185x 5185x 5185x 5185x 1x | import macro from 'vtk.js/Sources/macros';
import Constants from 'vtk.js/Sources/Rendering/OpenGL/BufferObject/Constants';
const { ObjectType } = Constants;
// ----------------------------------------------------------------------------
// Global methods
// ----------------------------------------------------------------------------
// ----------------------------------------------------------------------------
// Static API
// ----------------------------------------------------------------------------
export const STATIC = {};
// ----------------------------------------------------------------------------
// vtkOpenGLBufferObject methods
// ----------------------------------------------------------------------------
function vtkOpenGLBufferObject(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkOpenGLBufferObject');
// Class-specific private functions
function convertType(type) {
switch (type) {
case ObjectType.ELEMENT_ARRAY_BUFFER:
return model.context.ELEMENT_ARRAY_BUFFER;
case ObjectType.TEXTURE_BUFFER:
if ('TEXTURE_BUFFER' in model.context) {
return model.context.TEXTURE_BUFFER;
}
/* eslint-disable no-fallthrough */
// Intentional fallthrough in case there is no TEXTURE_BUFFER in WebGL
case ObjectType.ARRAY_BUFFER:
default:
return model.context.ARRAY_BUFFER;
/* eslint-enable no-fallthrough */
}
}
let internalType = null;
let internalHandle = null;
let dirty = true;
let error = '';
// Public API methods
publicAPI.getType = () => internalType;
publicAPI.setType = (value) => {
internalType = value;
};
publicAPI.getHandle = () => internalHandle;
publicAPI.isReady = () => dirty === false;
publicAPI.generateBuffer = (type) => {
const objectTypeGL = convertType(type);
if (internalHandle === null) {
internalHandle = model.context.createBuffer();
internalType = type;
}
return convertType(internalType) === objectTypeGL;
};
publicAPI.upload = (data, type) => {
// buffer, size, type
const alreadyGenerated = publicAPI.generateBuffer(type);
Iif (!alreadyGenerated) {
error = 'Trying to upload array buffer to incompatible buffer.';
return false;
}
model.context.bindBuffer(convertType(internalType), internalHandle);
model.context.bufferData(
convertType(internalType),
data,
model.context.STATIC_DRAW
);
model.allocatedGPUMemoryInBytes = data.length * data.BYTES_PER_ELEMENT;
dirty = false;
return true;
};
publicAPI.bind = () => {
Iif (!internalHandle) {
return false;
}
model.context.bindBuffer(convertType(internalType), internalHandle);
return true;
};
publicAPI.release = () => {
if (!internalHandle) {
return false;
}
model.context.bindBuffer(convertType(internalType), null);
return true;
};
publicAPI.releaseGraphicsResources = () => {
Iif (internalHandle !== null) {
model.context.bindBuffer(convertType(internalType), null);
model.context.deleteBuffer(internalHandle);
internalHandle = null;
model.allocatedGPUMemoryInBytes = 0;
}
};
publicAPI.setOpenGLRenderWindow = (rw) => {
if (model._openGLRenderWindow === rw) {
return;
}
publicAPI.releaseGraphicsResources();
model._openGLRenderWindow = rw;
model.context = null;
if (rw) {
model.context = model._openGLRenderWindow.getContext();
}
};
publicAPI.getError = () => error;
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
objectType: ObjectType.ARRAY_BUFFER,
// _openGLRenderWindow: null,
context: null,
allocatedGPUMemoryInBytes: 0,
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Object methods
macro.obj(publicAPI, model);
macro.get(publicAPI, model, [
'_openGLRenderWindow',
'allocatedGPUMemoryInBytes',
]);
macro.moveToProtected(publicAPI, model, ['openGLRenderWindow']);
vtkOpenGLBufferObject(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend);
// ----------------------------------------------------------------------------
export default { newInstance, extend, ...STATIC, ...Constants };
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