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| 1 <html> | |
| 2 <head> | |
| 3 <meta charset="utf-8"> | |
| 4 <script src="../../../resources/js-test.js"></script> | |
| 5 <script src="resources/webgl-test.js"></script> | |
| 6 <script src="resources/webgl-test-utils.js"></script> | |
| 7 </head> | |
| 8 <body> | |
| 9 <canvas id="example" width="4px" height="4px"></canvas> | |
| 10 <div id="description"></div> | |
| 11 <div id="console"></div> | |
| 12 <script> | |
| 13 description('Verifies that GL texture bindings do not change when canvas is resi
zed'); | |
| 14 | |
| 15 var err; | |
| 16 var wtu = WebGLTestUtils; | |
| 17 var canvas = document.getElementById("example"); | |
| 18 var gl = wtu.create3DContext(canvas); | |
| 19 var program = wtu.setupTexturedQuad(gl); | |
| 20 | |
| 21 var green = [0, 255, 0, 255]; | |
| 22 var blue = [0, 0, 255, 255]; | |
| 23 var tex0 = gl.createTexture(); | |
| 24 wtu.fillTexture(gl, tex0, 1, 1, blue, 0); | |
| 25 gl.activeTexture(gl.TEXTURE1) | |
| 26 var tex1 = gl.createTexture(); | |
| 27 wtu.fillTexture(gl, tex1, 1, 1, green, 0); | |
| 28 | |
| 29 var loc = gl.getUniformLocation(program, "tex"); | |
| 30 | |
| 31 function test() { | |
| 32 gl.viewport(0, 0, canvas.width, canvas.height); | |
| 33 gl.uniform1i(loc, 0); | |
| 34 wtu.drawQuad(gl); | |
| 35 wtu.checkCanvas(gl, blue, "should be blue"); | |
| 36 gl.uniform1i(loc, 1); | |
| 37 wtu.drawQuad(gl); | |
| 38 wtu.checkCanvas(gl, green, "should be green"); | |
| 39 } | |
| 40 | |
| 41 debug("test before resizing canvas"); | |
| 42 test(); | |
| 43 debug("test after resizing canvas"); | |
| 44 canvas.width = 8; | |
| 45 test(); | |
| 46 | |
| 47 successfullyParsed = true; | |
| 48 </script> | |
| 49 </body> | |
| 50 </html> | |
| 51 | |
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