third_party/WebKit/LayoutTests/fast/canvas/webgl/uniform-location.html

   1 <html>
   2 <head>
   3 <script src="../../../resources/js-test.js"></script>
   4 <script src="resources/webgl-test.js"></script>
   5 </head>
   6 <body>
   7 <div id="description"></div>
   8 <div id="console"></div>
   9
  10 <script>
  11 description("Tests the WebGLUniformLocation API");
  12
  13 if (window.internals)
  14     window.internals.settings.setWebGLErrorsToConsoleEnabled(false);
  15
  16 var contextA = create3DContext();
  17 var contextB = create3DContext();
  18 var programA1 = loadStandardProgram(contextA);
  19 var programA2 = loadStandardProgram(contextA);
  20 var programB = loadStandardProgram(contextB);
  21 var programS = loadProgram(contextA, "resources/structUniformShader.vert", "resources/fragmentShader.frag");
  22 var programV = loadProgram(contextA, "resources/floatUniformShader.vert", "resources/noopUniformShader.frag");
  23 var locationA = contextA.getUniformLocation(programA1, 'u_modelViewProjMatrix');
  24 var locationB = contextB.getUniformLocation(programB, 'u_modelViewProjMatrix');
  25 var locationSx = contextA.getUniformLocation(programS, "u_struct.x");
  26 var locationArray0 = contextA.getUniformLocation(programS, "u_array[0]");
  27 var locationArray1 = contextA.getUniformLocation(programS, "u_array[1]");
  28 var locationVec4 = contextA.getUniformLocation(programV, "fval4");
  29
  30 var vec = [1, 2, 3, 4];
  31 var mat = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16];
  32
  33 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.useProgram(programA2)");
  34 shouldGenerateGLError(contextA, contextA.INVALID_OPERATION, "contextA.uniformMatrix4fv(locationA, false, mat)");
  35 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.useProgram(programA1)");
  36 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniformMatrix4fv(locationA, false, mat)");
  37 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniformMatrix4fv(null, false, mat)");
  38
  39 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.useProgram(programS)");
  40 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniform1i(locationSx, 3)");
  41 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniform1f(locationArray0, 4.0)");
  42 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniform1f(locationArray1, 5.0)");
  43
  44 shouldBe("contextA.getUniform(programS, locationSx)", "3");
  45 shouldBe("contextA.getUniform(programS, locationArray0)", "4.0");
  46 shouldBe("contextA.getUniform(programS, locationArray1)", "5.0");
  47
  48 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.useProgram(programV)");
  49 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniform4fv(locationVec4, vec)");
  50 shouldBe("contextA.getUniform(programV, locationVec4)", "vec");
  51
  52 shouldBeNull("contextA.getUniformLocation(programV, \"IDontExist\")");
  53 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.linkProgram(programA1)");
  54 // After linking all boxes are bad.
  55 shouldGenerateGLError(contextA, contextA.INVALID_OPERATION, "contextA.uniformMatrix4fv(locationA, false, mat)");
  56
  57 // after re-linking the same program, all uniform locations become invalid.
  58 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.useProgram(programS)");
  59 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.linkProgram(programS)");
  60 shouldGenerateGLError(contextA, contextA.INVALID_OPERATION, "contextA.uniform1i(locationSx, 3)");
  61 shouldGenerateGLError(contextA, contextA.INVALID_OPERATION, "contextA.getUniform(programS, locationSx)");
  62
  63 // Retrieve the locations again, and they should be good.
  64 locationSx = contextA.getUniformLocation(programS, "u_struct.x");
  65 locationArray0 = contextA.getUniformLocation(programS, "u_array[0]");
  66 shouldGenerateGLError(contextA, contextA.NO_ERROR, "contextA.uniform1i(locationSx, 3)");
  67 shouldBe("contextA.getUniform(programS, locationSx)", "3");
  68 </script>
  69
  70 </body>
  71 </html>