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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 5161x 10971x 10971x 5161x 5161x 5161x 5161x 5405x 5161x 5082x 10810x 5161x 5161x 1390x 1390x 1098x 1098x 1390x 5161x 1390x 1390x 1390x 1390x 1390x 1390x 1390x 5161x 5411x 5411x 5411x 5161x 5161x 6485x 5161x 5159x 54x 5105x 5105x 5105x 5105x 5105x 5161x 1x 5161x 5161x 5161x 5161x 5161x 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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