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| |
| /* |
| ** Copyright (c) 2015 The Khronos Group Inc. |
| ** |
| ** Permission is hereby granted, free of charge, to any person obtaining a |
| ** copy of this software and/or associated documentation files (the |
| ** "Materials"), to deal in the Materials without restriction, including |
| ** without limitation the rights to use, copy, modify, merge, publish, |
| ** distribute, sublicense, and/or sell copies of the Materials, and to |
| ** permit persons to whom the Materials are furnished to do so, subject to |
| ** the following conditions: |
| ** |
| ** The above copyright notice and this permission notice shall be included |
| ** in all copies or substantial portions of the Materials. |
| ** |
| ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
| */ |
| |
| --> |
| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <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> |
| <script id='vshader' type='x-shader/x-vertex'>#version 300 es |
| layout(location=0) in ivec2 p; |
| layout(location=1) in ivec4 a; |
| void main() |
| { |
| gl_Position = vec4(p.x + a.x + a.y + a.z + a.w, p.y, 0.0, 10.0); |
| } |
| </script> |
| <script id='vshader_unsigned' type='x-shader/x-vertex'>#version 300 es |
| layout(location=0) in ivec2 p; |
| layout(location=1) in uvec4 a; |
| void main() |
| { |
| gl_Position = vec4(p.x + int(a.x + a.y + a.z + a.w), p.y, 0.0, 10.0); |
| } |
| </script> |
| <script id='fshader' type='x-shader/x-fragment'>#version 300 es |
| precision mediump float; |
| layout(location=0) out vec4 oColor; |
| void main() |
| { |
| oColor = vec4(1.0, 0.0, 0.0, 1.0); |
| } |
| </script> |
| <script> |
| "use strict"; |
| function checkRedPortion(gl, w, low, high) { |
| var buf = new Uint8Array(w * w * 4); |
| gl.readPixels(0, 0, w, w, gl.RGBA, gl.UNSIGNED_BYTE, buf); |
| var i = 0; |
| for (; i < w; ++i) { |
| if (buf[i * 4 + 0] == 255 && buf[i * 4 + 1] == 0 && buf[i * 4 + 2] == 0 && buf[i * 4 + 3] == 255) { |
| break; |
| } |
| } |
| return low <= i && i <= high; |
| } |
| |
| function runTest() { |
| var wtu = WebGLTestUtils; |
| var gl = wtu.create3DContext('testbed', { preserveDrawingBuffer : true }, 2); |
| if (!gl) { |
| testFailed('could not create context'); |
| return; |
| } |
| var program = wtu.setupProgram(gl, ['vshader', 'fshader']); |
| var program_unsigned = wtu.setupProgram(gl, ['vshader_unsigned', 'fshader']); |
| |
| gl.enableVertexAttribArray(0); |
| var pos = gl.createBuffer(); |
| gl.bindBuffer(gl.ARRAY_BUFFER, pos); |
| gl.bufferData(gl.ARRAY_BUFFER, new Int32Array([-10, -10, 10, -10, -10, 10, 10, 10]), gl.STATIC_DRAW); |
| |
| gl.vertexAttribIPointer(0, 2, gl.INT, 4 * 2, 0); |
| |
| debug('Test vertexAttribI4[ui][v] by setting different combinations that add up to 15 and use that when rendering.'); |
| var vals = [[2, -3, 6, 10], [1, 3, 1, 10], [-10, 3, 2, 20], [5, 6, 2, 2]]; |
| var tests = ['vertexAttribI4i', 'vertexAttribI4ui', 'vertexAttribI4iv', 'vertexAttribI4uiv']; |
| |
| for (var ii = 0; ii < 4; ++ii) { |
| if (ii % 2 == 0) { |
| gl.useProgram(program); |
| } else { |
| gl.useProgram(program_unsigned); |
| } |
| gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
| if (ii < 2) { |
| gl[tests[ii]](1, vals[ii][0], vals[ii][1], vals[ii][2], vals[ii][3]); |
| } else { |
| gl[tests[ii]](1, vals[ii]); |
| } |
| gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4); |
| |
| if (checkRedPortion(gl, 50, 50 * 0.7, 50 * 0.8)) { |
| testPassed('Attribute of ' + tests[ii] + ' was set correctly'); |
| } else { |
| testFailed('Attribute of ' + tests[ii] + ' was not set correctly'); |
| } |
| } |
| } |
| </script> |
| </head> |
| <body> |
| <canvas id="testbed" width="50" height="50"></canvas> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script> |
| "use strict"; |
| description('Verify that using constant attributes for vertexAttribI* works.'); |
| runTest(); |
| var successfullyParsed = true; |
| </script> |
| <script src="../../js/js-test-post.js"></script> |
| </body> |
| </html> |