archive-gh-me/gpu.js
1
0
Fork 0
mirror of https://github.com/gpujs/gpu.js.git synced 2026-01-18 16:04:10 +00:00
Code Issues Projects Releases Wiki Activity

Set canvas size from list of texSizes

Browse Source
This commit is contained in:
Robert Plummer 2017-07-17 09:33:05 -04:00
parent a35c6f3631
commit 735fc1d62f
1 changed files with 21 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
src/backend/web-gl/kernel.js
View File

@ -7,7 +7,8 @@ const Texture = require('../../core/texture');
const fragShaderString = require('./shader-frag');
const vertShaderString = require('./shader-vert');
const kernelString = require('./kernel-string');
const canvases = [];
const canvasTexSizes = {};
module.exports = class WebGLKernel extends KernelBase {
/**
@ -128,14 +129,28 @@ module.exports = class WebGLKernel extends KernelBase {
const texSize = this.texSize;
const gl = this._webGl;
const canvas = this._canvas;
if (canvas.width < texSize[0]) {
canvas.width = texSize[0];
let canvasIndex = canvases.indexOf(canvas);
if (canvasIndex === -1) {
canvasIndex = canvases.length;
canvases.push(canvas);
canvasTexSizes[canvasIndex] = [];
}
if (canvas.height < texSize[1]) {
canvas.height = texSize[1];
const sizes = canvasTexSizes[canvasIndex];
sizes.push(texSize);
const maxTexSize = [0, 0];
for (let i = 0; i < sizes.length; i++) {
const size = sizes[i];
if (maxTexSize[0] < size[0]) {
maxTexSize[0] = size[0];
}
if (maxTexSize[1] < size[1]) {
maxTexSize[1] = size[1];
}
}
gl.enable(gl.SCISSOR_TEST);
gl.viewport(0, 0, canvas.width, canvas.height);
gl.viewport(0, 0, maxTexSize[0], maxTexSize[1]);
const threadDim = this.threadDim = utils.clone(this.dimensions);
while (threadDim.length < 3) {
threadDim.push(1);