dom/canvas/test/webgl-conf/checkout/conformance/uniforms/uniform-location.html

   1 <!--
   2 Copyright (c) 2019 The Khronos Group Inc.
   3 Use of this source code is governed by an MIT-style license that can be
   4 found in the LICENSE.txt file.
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  14 <body>
  15 <div id="description"></div>
  16 <div id="console"></div>
  17
  18 <script>
  19 "use strict";
  20 description("Tests the WebGLUniformLocation API");
  21
  22 var wtu = WebGLTestUtils;
  23 var contextA = wtu.create3DContext();
  24 var contextB = wtu.create3DContext();
  25 var programA1 = wtu.loadStandardProgram(contextA);
  26 var programA2 = wtu.loadStandardProgram(contextA);
  27 var programB = wtu.loadStandardProgram(contextB);
  28 var programS = wtu.loadProgramFromFile(contextA, "../../resources/structUniformShader.vert", "../../resources/fragmentShader.frag");
  29 var programV = wtu.loadProgramFromFile(contextA, "../../resources/floatUniformShader.vert", "../../resources/noopUniformShader.frag");
  30 var locationA = contextA.getUniformLocation(programA1, 'u_modelViewProjMatrix');
  31 var locationB = contextB.getUniformLocation(programB, 'u_modelViewProjMatrix');
  32 var locationSx = contextA.getUniformLocation(programS, "u_struct.x");
  33 var locationSx2;
  34 var locationArray0 = contextA.getUniformLocation(programS, "u_array[0]");
  35 var locationArray1 = contextA.getUniformLocation(programS, "u_array[1]");
  36 var locationVec4 = contextA.getUniformLocation(programV, "fval4");
  37
  38 var vec = [1, 2, 3, 4];
  39 var mat = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16];
  40
  41 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.useProgram(programA2)");
  42 wtu.shouldGenerateGLError(contextA, contextA.INVALID_OPERATION, "contextA.uniformMatrix4fv(locationA, false, mat)");
  43 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.useProgram(programA1)");
  44 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniformMatrix4fv(locationA, false, mat)");
  45 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniformMatrix4fv(null, false, mat)");
  46
  47 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.useProgram(programS)");
  48 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniform1i(locationSx, 333)");
  49 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniform1f(locationArray0, 4.0)");
  50 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniform1f(locationArray1, 5.0)");
  51
  52 shouldBe("contextA.getUniform(programS, locationSx)", "333");
  53 shouldBe("contextA.getUniform(programS, locationArray0)", "4.0");
  54 shouldBe("contextA.getUniform(programS, locationArray1)", "5.0");
  55
  56 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.useProgram(programV)");
  57 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniform4fv(locationVec4, vec)");
  58 shouldBe("contextA.getUniform(programV, locationVec4)", "vec");
  59
  60 shouldBeNull("contextA.getUniformLocation(programV, \"IDontExist\")");
  61 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.linkProgram(programA1)");
  62 // After linking all boxes are bad.
  63 wtu.shouldGenerateGLError(contextA, contextA.INVALID_OPERATION, "contextA.uniformMatrix4fv(locationA, false, mat)");
  64
  65 // after re-linking the same program, all uniform locations become invalid.
  66 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.useProgram(programS)");
  67 contextA.stencilMask(1);
  68 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.linkProgram(programS)");
  69 wtu.shouldGenerateGLError(contextA, contextA.INVALID_OPERATION, "contextA.uniform1i(locationSx, 3)");
  70 wtu.shouldGenerateGLError(contextA, contextA.INVALID_OPERATION, "contextA.getUniform(programS, locationSx)");
  71 // Make sure that with no current program, uniform location validation doesn't get confused.
  72 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.useProgram(null)");
  73 wtu.shouldGenerateGLError(contextA, contextA.INVALID_OPERATION, "contextA.uniform1i(locationSx, 3)");
  74 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.useProgram(programS)");
  75
  76 // Retrieve the locations again, and they should be good.
  77 locationSx = contextA.getUniformLocation(programS, "u_struct.x");
  78 locationArray0 = contextA.getUniformLocation(programS, "u_array[0]");
  79 debug("here");
  80 contextA.stencilMask(0);
  81 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniform1i(locationSx, 3)");
  82 wtu.shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniform1f(locationArray0, 123)");
  83 shouldBe("contextA.getUniform(programS, locationSx)", "3");
  84 shouldBe("contextA.getUniform(programS, locationArray0)", "123");
  85
  86 // getUniformLocation should return a different object everytime, should not cache and return the same object
  87 debug("Testing that getUniformLocation returns a different object everytime");
  88 locationSx  = contextA.getUniformLocation(programS, "u_struct.x");
  89 locationSx2 = contextA.getUniformLocation(programS, "u_struct.x");
  90 shouldBeFalse("locationSx === locationSx2");
  91 locationSx.foo  = {};
  92 locationSx2.foo = {};
  93 shouldBeFalse("locationSx.foo === locationSx2.foo");
  94
  95 var successfullyParsed = true;
  96 </script>
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