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Split the existing WebGLUtils in two classes, a private WebGLUtils and a public WebGLContext, and utilize the latter in the API to allow various code to access the methods of WebGLUtils

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This patch is one (small) step on the way to reduce the general dependency on a global `PDFJS` object, for PDF.js version `2.0`.
This commit is contained in:
Jonas Jenwald 2017-11-01 16:32:22 +01:00
parent 503bc95a2b
commit 59b5e14301
4 changed files with 86 additions and 43 deletions
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15
src/display/api.js
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@ -30,6 +30,7 @@ import { CanvasGraphics } from './canvas';
import globalScope from '../shared/global_scope';
import { Metadata } from './metadata';
import { PDFDataTransportStream } from './transport_stream';
import { WebGLContext } from './webgl';
var DEFAULT_RANGE_CHUNK_SIZE = 65536; // 2^16 = 65536
@ -820,6 +821,11 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
var renderingIntent = (params.intent === 'print' ? 'print' : 'display');
var canvasFactory = params.canvasFactory || new DOMCanvasFactory();
let webGLContext = new WebGLContext({
// TODO: When moving this parameter from `PDFJS` to {RenderParameters},
// change its name to `enableWebGL` instead.
enable: !getDefaultSetting('disableWebGL'),
});
if (!this.intentStates[renderingIntent]) {
this.intentStates[renderingIntent] = Object.create(null);
@ -870,7 +876,8 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
this.commonObjs,
intentState.operatorList,
this.pageNumber,
canvasFactory);
canvasFactory,
webGLContext);
internalRenderTask.useRequestAnimationFrame = renderingIntent !== 'print';
if (!intentState.renderTasks) {
intentState.renderTasks = [];
@ -2174,7 +2181,7 @@ var InternalRenderTask = (function InternalRenderTaskClosure() {
let canvasInRendering = new WeakMap();
function InternalRenderTask(callback, params, objs, commonObjs, operatorList,
pageNumber, canvasFactory) {
pageNumber, canvasFactory, webGLContext) {
this.callback = callback;
this.params = params;
this.objs = objs;
@ -2183,6 +2190,8 @@ var InternalRenderTask = (function InternalRenderTaskClosure() {
this.operatorList = operatorList;
this.pageNumber = pageNumber;
this.canvasFactory = canvasFactory;
this.webGLContext = webGLContext;
this.running = false;
this.graphicsReadyCallback = null;
this.graphicsReady = false;
@ -2225,7 +2234,7 @@ var InternalRenderTask = (function InternalRenderTaskClosure() {
var params = this.params;
this.gfx = new CanvasGraphics(params.canvasContext, this.commonObjs,
this.objs, this.canvasFactory,
params.imageLayer);
this.webGLContext, params.imageLayer);
this.gfx.beginDrawing({
transform: params.transform,