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| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL buffer deletion behavior 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> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script> |
| "use strict"; |
| description("Test buffer deletion behavior."); |
| // This is a regression test for https://crbug.com/822976 |
| |
| var wtu = WebGLTestUtils; |
| |
| var gl = wtu.create3DContext(undefined, undefined, 2); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); |
| |
| function runTexImageTest(gl) { |
| debug(""); |
| var buffer = gl.createBuffer(); |
| gl.bindBuffer(gl.PIXEL_UNPACK_BUFFER, buffer); |
| gl.bufferData(gl.PIXEL_UNPACK_BUFFER, 4, gl.DYNAMIC_DRAW); |
| gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, buffer); |
| gl.deleteBuffer(buffer); |
| // Indexed uniform buffer bindings should not prevent a buffer from being |
| // deleted. Therefore, PIXEL_UNPACK_BUFFER binding should also be 0. |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no error"); |
| |
| var tex = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, tex); |
| var data = new Uint8Array(1024); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, 16, 16, 0, |
| gl.RGBA, gl.UNSIGNED_BYTE, data); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texImage2D should succeed"); |
| |
| // Clean up bindings just in case an implementation gets it wrong. |
| gl.bindBuffer(gl.PIXEL_UNPACK_BUFFER, null); |
| gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, null); |
| } |
| |
| function runReadPixelsTest(gl) { |
| debug(""); |
| var buffer = gl.createBuffer(); |
| gl.bindBuffer(gl.PIXEL_PACK_BUFFER, buffer); |
| gl.bufferData(gl.PIXEL_PACK_BUFFER, 4, gl.DYNAMIC_DRAW); |
| gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, buffer); |
| gl.deleteBuffer(buffer); |
| // Indexed transform feedback buffer bindings should not prevent a buffer |
| // from being deleted. Therefore, PIXEL_PACK_BUFFER binding should also be 0. |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no error"); |
| |
| var buffer = new Uint8Array(1024); |
| gl.readPixels(0, 0, 16, 16, gl.RGBA, gl.UNSIGNED_BYTE, buffer); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "readPixels should succeed"); |
| |
| // Clean up bindings just in case an implementation gets it wrong. |
| gl.bindBuffer(gl.PIXEL_PACK_BUFFER, null); |
| gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, null); |
| } |
| |
| runTexImageTest(gl); |
| runReadPixelsTest(gl); |
| |
| debug(""); |
| var successfullyParsed = true; |
| </script> |
| <script src="../../js/js-test-post.js"></script> |
| </body> |
| </html> |
