| |
| <!-- |
| Copyright (c) 2019 The Khronos Group Inc. |
| Use of this source code is governed by an MIT-style license that can be |
| found in the LICENSE.txt file. |
| --> |
| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>GLSL Array of Structs Uniform</title> |
| <link rel="stylesheet" href="../../../resources/js-test-style.css"/> |
| <link rel="stylesheet" href="../../../resources/glsl-feature-tests.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"> |
| attribute vec4 a_position; |
| void main(void) { |
| gl_Position = a_position; |
| } |
| </script> |
| <script id="fshader0" type="x-shader/x-fragment"> |
| precision mediump float; |
| struct my_struct { |
| vec4 color; |
| }; |
| uniform my_struct u_colors[2]; |
| void main(void) { |
| gl_FragColor = u_colors[0].color; |
| } |
| </script> |
| <script id="fshader1" type="x-shader/x-fragment"> |
| precision mediump float; |
| struct my_struct { |
| vec4 color; |
| }; |
| uniform my_struct u_colors[2]; |
| void main(void) { |
| gl_FragColor = u_colors[1].color; |
| } |
| </script> |
| <script id="fshader2" type="x-shader/x-fragment"> |
| precision mediump float; |
| struct my_struct { |
| vec4 color1; |
| vec4 color2; |
| }; |
| uniform my_struct u_colors[2]; |
| void main(void) { |
| gl_FragColor = u_colors[0].color1 + u_colors[0].color2 + u_colors[1].color1 +u_colors[1].color2; |
| } |
| </script> |
| <script id="fshader3" type="x-shader/x-fragment"> |
| precision mediump float; |
| struct my_struct { |
| float r; |
| float g; |
| float b; |
| float a; |
| }; |
| uniform my_struct u_colors[2]; |
| void main(void) { |
| gl_FragColor = vec4(u_colors[0].r, u_colors[0].g, u_colors[1].b, u_colors[1].a); |
| } |
| </script> |
| </head> |
| <body> |
| <canvas id="canvas" width="50" height="50"></canvas> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script> |
| "use strict"; |
| description(); |
| |
| var wtu = WebGLTestUtils; |
| var gl = wtu.create3DContext("canvas"); |
| wtu.setupUnitQuad(gl); |
| |
| for (var ii = 0; ii < 2; ++ii) { |
| var program = wtu.setupProgram(gl, ["vshader", "fshader" + ii], ["a_position"]); |
| var red_loc = gl.getUniformLocation(program, "u_colors[" + ii + "].color"); |
| var green_loc = gl.getUniformLocation(program, "u_colors[" + (1 - ii) + "].color"); |
| gl.uniform4fv(red_loc, [1, 0, 0, 1]); |
| gl.uniform4fv(green_loc, [0, 1, 0, 1]); |
| wtu.clearAndDrawUnitQuad(gl); |
| wtu.checkCanvas(gl, [255, 0, 0, 255], "Should be red"); |
| } |
| |
| var program = wtu.setupProgram(gl, ["vshader", "fshader2"], ["a_position"]); |
| var numUniforms = gl.getProgramParameter(program, gl.ACTIVE_UNIFORMS); |
| shouldBe("numUniforms", "4"); |
| var uniforms = [] |
| for (var ii = 0; ii < numUniforms; ++ii) { |
| uniforms.push(gl.getActiveUniform(program, ii).name); |
| } |
| uniforms.sort(); |
| shouldBe("uniforms[0]", '"u_colors[0].color1"'); |
| shouldBe("uniforms[1]", '"u_colors[0].color2"'); |
| shouldBe("uniforms[2]", '"u_colors[1].color1"'); |
| shouldBe("uniforms[3]", '"u_colors[1].color2"'); |
| var loc00 = gl.getUniformLocation(program, "u_colors[0].color1"); |
| var loc01 = gl.getUniformLocation(program, "u_colors[0].color2"); |
| var loc10 = gl.getUniformLocation(program, "u_colors[1].color1"); |
| var loc11 = gl.getUniformLocation(program, "u_colors[1].color2"); |
| shouldBeTrue("loc00 != undefined"); |
| shouldBeTrue("loc01 != undefined"); |
| shouldBeTrue("loc10 != undefined"); |
| shouldBeTrue("loc11 != undefined"); |
| gl.uniform4fv(loc00, [1, 0, 0, 0]); |
| gl.uniform4fv(loc01, [0, 1, 0, 0]); |
| gl.uniform4fv(loc10, [0, 0, 1, 0]); |
| gl.uniform4fv(loc11, [0, 0, 0, 1]); |
| wtu.clearAndDrawUnitQuad(gl, [0, 0, 0, 0]); |
| wtu.checkCanvas(gl, [255, 255, 255, 255], "Should be white"); |
| |
| program = wtu.setupProgram(gl, ["vshader", "fshader3"], ["a_position"]); |
| var loc0r = gl.getUniformLocation(program, "u_colors[0].r"); |
| var loc0g = gl.getUniformLocation(program, "u_colors[0].g"); |
| var loc0b = gl.getUniformLocation(program, "u_colors[0].b"); |
| var loc0a = gl.getUniformLocation(program, "u_colors[0].a"); |
| var loc1r = gl.getUniformLocation(program, "u_colors[1].r"); |
| var loc1g = gl.getUniformLocation(program, "u_colors[1].g"); |
| var loc1b = gl.getUniformLocation(program, "u_colors[1].b"); |
| var loc1a = gl.getUniformLocation(program, "u_colors[1].a"); |
| shouldBeTrue("loc0r != undefined"); |
| shouldBeTrue("loc0g != undefined"); |
| shouldBeTrue("loc1b != undefined"); |
| shouldBeTrue("loc1a != undefined"); |
| gl.uniform1f(loc0r, 1); |
| gl.uniform1f(loc0g, 1); |
| gl.uniform1f(loc1b, 1); |
| gl.uniform1f(loc1a, 1); |
| wtu.clearAndDrawUnitQuad(gl, [0, 0, 0, 0]); |
| wtu.checkCanvas(gl, [255, 255, 255, 255], "Should be white"); |
| |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors"); |
| |
| var successfullyParsed = true; |
| </script> |
| <script src="../../../js/js-test-post.js"></script> |
| </body> |
| </html> |
| |
