| /* |
| Copyright (c) 2019 The Khronos Group Inc. |
| Use of this source code is governed by an MIT-style license that can be |
| found in the LICENSE.txt file. |
| */ |
| |
| function generateTest(internalFormat, pixelFormat, pixelType, prologue, resourcePath, defaultContextVersion) { |
| var wtu = WebGLTestUtils; |
| var tiu = TexImageUtils; |
| var gl = null; |
| var successfullyParsed = false; |
| |
| function init() |
| { |
| description('Verify texImage3D and texSubImage3D code paths taking ImageBitmap created from an HTMLCanvasElement (' + internalFormat + '/' + pixelFormat + '/' + pixelType + ')'); |
| |
| if(!window.createImageBitmap || !window.ImageBitmap) { |
| finishTest(); |
| return; |
| } |
| |
| // Set the default context version while still allowing the webglVersion URL query string to override it. |
| wtu.setDefault3DContextVersion(defaultContextVersion); |
| gl = wtu.create3DContext("example"); |
| |
| if (!prologue(gl)) { |
| finishTest(); |
| return; |
| } |
| |
| gl.clearColor(0,0,0,1); |
| gl.clearDepth(1); |
| |
| var testCanvas = document.createElement('canvas'); |
| var ctx = testCanvas.getContext("2d"); |
| setCanvasToMin(ctx); |
| runImageBitmapTest(testCanvas, 0.5, internalFormat, pixelFormat, pixelType, gl, tiu, wtu, true) |
| .then(() => { |
| setCanvasTo257x257(ctx); |
| return runImageBitmapTest(testCanvas, 0.5, internalFormat, pixelFormat, pixelType, gl, tiu, wtu, true); |
| }).then(() => { |
| finishTest(); |
| }); |
| } |
| |
| function setCanvasToRedGreen(ctx) { |
| var width = ctx.canvas.width; |
| var halfWidth = Math.floor(width / 2); |
| var height = ctx.canvas.height; |
| var halfHeight = Math.floor(height / 2); |
| ctx.fillStyle = "rgba(255, 0, 0, 1)"; |
| ctx.fillRect(0, 0, halfWidth, halfHeight); |
| ctx.fillStyle = "rgba(255, 0, 0, 0.5)"; |
| ctx.fillRect(halfWidth, 0, halfWidth, halfHeight); |
| ctx.fillStyle = "rgba(0, 255, 0, 1)"; |
| ctx.fillRect(0, halfHeight, halfWidth, halfHeight); |
| ctx.fillStyle = "rgba(0, 255, 0, 0.5)"; |
| ctx.fillRect(halfWidth, halfHeight, halfWidth, halfHeight); |
| } |
| |
| function setCanvasToMin(ctx) { |
| ctx.canvas.width = 2; |
| ctx.canvas.height = 2; |
| setCanvasToRedGreen(ctx); |
| } |
| |
| function setCanvasTo257x257(ctx) { |
| ctx.canvas.width = 257; |
| ctx.canvas.height = 257; |
| setCanvasToRedGreen(ctx); |
| } |
| |
| return init; |
| } |