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| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL Texture Copying Feedback Loops Test</title> |
| <link rel="stylesheet" href="../../../resources/js-test-style.css"/> |
| <script src="../../../js/js-test-pre.js"></script> |
| <script src="../../../js/webgl-test-utils.js"></script> |
| </head> |
| <body> |
| <canvas id="example" width="1" height="1" style="width: 40px; height: 40px;"></canvas> |
| <div id="description"></div> |
| <div id="console"></div> |
| |
| <script> |
| "use strict"; |
| description("Checks that texture copying feedback loops fail correctly."); |
| var wtu = WebGLTestUtils; |
| var gl = wtu.create3DContext("example"); |
| |
| var texture = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, texture); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); |
| |
| var texture2 = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, texture2); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); |
| |
| var framebuffer = gl.createFramebuffer(); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, framebuffer); |
| gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0); |
| assertMsg(gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE, |
| "framebuffer should be FRAMEBUFFER_COMPLETE."); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after setup"); |
| |
| debug(""); |
| debug("testing copyTexImage2D"); |
| gl.bindTexture(gl.TEXTURE_2D, texture); |
| gl.copyTexImage2D(gl.TEXTURE_2D, 1, gl.RGBA, 0, 0, 2, 2, 0); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, |
| "after copyTexImage2D to same texture but different level"); |
| gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 0, 0, 2, 2, 0); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, |
| "after copyTexImage2D to same texture same level, invalid feedback loop"); |
| gl.bindTexture(gl.TEXTURE_2D, texture2); |
| gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 0, 0, 2, 2, 0); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, |
| "after copyTexImage2D to different texture"); |
| |
| debug(""); |
| debug("testing copyTexSubImage2D"); |
| gl.bindTexture(gl.TEXTURE_2D, texture); |
| gl.copyTexSubImage2D(gl.TEXTURE_2D, 1, 0, 0, 0, 0, 1, 1); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, |
| "after copyTexSubImage2D to same texture but different level"); |
| gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, 0, 0, 1, 1); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, |
| "after copyTexSubImage2D to same texture same level, invalid feedback loop"); |
| gl.bindTexture(gl.TEXTURE_2D, texture2); |
| gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, 0, 0, 1, 1); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, |
| "after copyTexSubImage2D to different texture"); |
| var successfullyParsed = true; |
| </script> |
| <script src="../../../js/js-test-post.js"></script> |
| |
| </body> |
| </html> |
