| <html> |
| <head> |
| <meta charset="utf-8"> |
| <script src="../../../resources/js-test.js"></script> |
| <script src="resources/webgl-test.js"></script> |
| <script src="resources/webgl-test-utils.js"></script> |
| </head> |
| <body> |
| <canvas id="example" width="4px" height="4px"></canvas> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script> |
| description('Verifies that GL texture bindings do not change when canvas is resized'); |
| |
| var err; |
| var wtu = WebGLTestUtils; |
| var canvas = document.getElementById("example"); |
| var gl = wtu.create3DContext(canvas); |
| var program = wtu.setupTexturedQuad(gl); |
| |
| var green = [0, 255, 0, 255]; |
| var blue = [0, 0, 255, 255]; |
| var tex0 = gl.createTexture(); |
| wtu.fillTexture(gl, tex0, 1, 1, blue, 0); |
| gl.activeTexture(gl.TEXTURE1) |
| var tex1 = gl.createTexture(); |
| wtu.fillTexture(gl, tex1, 1, 1, green, 0); |
| |
| var loc = gl.getUniformLocation(program, "tex"); |
| |
| function test() { |
| gl.viewport(0, 0, canvas.width, canvas.height); |
| gl.uniform1i(loc, 0); |
| wtu.drawQuad(gl); |
| wtu.checkCanvas(gl, blue, "should be blue"); |
| gl.uniform1i(loc, 1); |
| wtu.drawQuad(gl); |
| wtu.checkCanvas(gl, green, "should be green"); |
| } |
| |
| debug("test before resizing canvas"); |
| test(); |
| debug("test after resizing canvas"); |
| canvas.width = 8; |
| test(); |
| </script> |
| </body> |
| </html> |
| |
