dom/canvas/test/webgl-conf/checkout/conformance/state/gl-get-calls.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.
   5 -->
   6
   7 <!DOCTYPE html>
   8 <html>
   9 <head>
  10 <meta charset="utf-8">
  11 <title>WebGL gl calls Conformance Tests</title>
  12 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
  13 <script src="../../js/js-test-pre.js"></script>
  14 <script src="../../js/webgl-test-utils.js"></script>
  15 </head>
  16 <body>
  17 <div id="description"></div>
  18 <div id="console"></div>
  19 <canvas id="canvas" width="2" height="2"> </canvas>
  20 <script>
  21 "use strict";
  22 description("This test ensures basic functionality of the underlying graphics library");
  23
  24 debug("");
  25 debug("Canvas.getContext");
  26
  27 var minimumRequiredStencilMask = 0;
  28 var wtu = WebGLTestUtils;
  29 var context = wtu.create3DContext("canvas");
  30 if (!context)
  31     testFailed("context does not exist");
  32 else {
  33     testPassed("context exists");
  34
  35     debug("");
  36     debug("Context contains getError");
  37     if ("getError" in context)
  38       testPassed("context contains getError");
  39     else
  40       testFailed("context does not contains getError");
  41
  42     debug("");
  43     debug("Check default values");
  44     shouldBe('context.getParameter(context.ACTIVE_TEXTURE)', 'context.TEXTURE0');
  45     shouldBe('(context.getParameter(context.ALIASED_LINE_WIDTH_RANGE)[0] <= 1) && (context.getParameter(context.ALIASED_LINE_WIDTH_RANGE)[0] > 0) && (context.getParameter(context.ALIASED_LINE_WIDTH_RANGE)[1] >= 1)', 'true');
  46     shouldBe('(context.getParameter(context.ALIASED_POINT_SIZE_RANGE)[0] <= 1) && (context.getParameter(context.ALIASED_POINT_SIZE_RANGE)[0] > 0) && (context.getParameter(context.ALIASED_POINT_SIZE_RANGE)[1] >= 1)', 'true');
  47     shouldBeType('context.getParameter(context.ALIASED_LINE_WIDTH_RANGE)', 'Float32Array');
  48     shouldBeType('context.getParameter(context.ALIASED_POINT_SIZE_RANGE)', 'Float32Array');
  49     shouldBe('context.getParameter(context.ARRAY_BUFFER_BINDING)', 'null');
  50     shouldBe('context.getParameter(context.BLEND)', 'false');
  51     shouldBe('context.getParameter(context.BLEND_COLOR)', '[0, 0, 0, 0]');
  52     shouldBeType('context.getParameter(context.BLEND_COLOR)', 'Float32Array');
  53     shouldBe('context.getParameter(context.BLEND_DST_ALPHA)', '0');
  54     shouldBe('context.getParameter(context.BLEND_DST_RGB)', '0');
  55     shouldBe('context.getParameter(context.BLEND_EQUATION_ALPHA)', 'context.FUNC_ADD');
  56     shouldBe('context.getParameter(context.BLEND_EQUATION_RGB)', 'context.FUNC_ADD');
  57     shouldBe('context.getParameter(context.BLEND_SRC_ALPHA)', '1');
  58     shouldBe('context.getParameter(context.BLEND_SRC_RGB)', '1');
  59     shouldBe('context.getParameter(context.COLOR_CLEAR_VALUE)', '[0, 0, 0, 0]');
  60     shouldBeType('context.getParameter(context.COLOR_CLEAR_VALUE)', 'Float32Array');
  61     shouldBe('context.getParameter(context.COLOR_WRITEMASK)', '[true, true, true, true]');
  62     shouldBeType('context.getParameter(context.COMPRESSED_TEXTURE_FORMATS)', 'Uint32Array');
  63     shouldBe('context.getParameter(context.CULL_FACE)', 'false');
  64     shouldBe('context.getParameter(context.CULL_FACE_MODE)', 'context.BACK');
  65     shouldBe('context.getParameter(context.CURRENT_PROGRAM)', 'null');
  66     shouldBe('context.getParameter(context.DEPTH_CLEAR_VALUE)', '1');
  67     shouldBe('context.getParameter(context.DEPTH_FUNC)', 'context.LESS');
  68     shouldBe('context.getParameter(context.DEPTH_RANGE)', '[0, 1]');
  69     shouldBeType('context.getParameter(context.DEPTH_RANGE)', 'Float32Array');
  70     shouldBe('context.getParameter(context.DEPTH_TEST)', 'false');
  71     shouldBe('context.getParameter(context.DEPTH_WRITEMASK)', 'true');
  72     shouldBe('context.getParameter(context.DITHER)', 'true');
  73     shouldBe('context.getParameter(context.ELEMENT_ARRAY_BUFFER_BINDING)', 'null');
  74     shouldBe('context.getParameter(context.FRONT_FACE)', 'context.CCW');
  75     shouldBe('context.getParameter(context.GENERATE_MIPMAP_HINT)', 'context.DONT_CARE');
  76     shouldBe('context.getParameter(context.LINE_WIDTH)', '1');
  77     shouldBe('context.getParameter(context.PACK_ALIGNMENT)', '4');
  78     shouldBe('context.getParameter(context.POLYGON_OFFSET_FACTOR)', '0');
  79     shouldBe('context.getParameter(context.POLYGON_OFFSET_FILL)', 'false');
  80     shouldBe('context.getParameter(context.POLYGON_OFFSET_UNITS)', '0');
  81     shouldBe('context.getParameter(context.RENDERBUFFER_BINDING)', 'null');
  82     shouldBe('context.getParameter(context.SAMPLE_COVERAGE_INVERT)', 'false');
  83     shouldBe('context.getParameter(context.SAMPLE_COVERAGE_VALUE)', '1');
  84     shouldBe('context.getParameter(context.SCISSOR_BOX)[0]', '0');
  85     shouldBe('context.getParameter(context.SCISSOR_BOX)[1]', '0');
  86     shouldBe('context.getParameter(context.SCISSOR_BOX)[2]', 'context.getParameter(context.VIEWPORT)[2]');
  87     shouldBe('context.getParameter(context.SCISSOR_BOX)[3]', 'context.getParameter(context.VIEWPORT)[3]');
  88     shouldBeType('context.getParameter(context.SCISSOR_BOX)', Int32Array);
  89     shouldBe('context.getParameter(context.SCISSOR_TEST)', 'false');
  90     shouldBe('context.getParameter(context.STENCIL_BACK_FAIL)', 'context.KEEP');
  91     shouldBe('context.getParameter(context.STENCIL_BACK_FUNC)', 'context.ALWAYS');
  92     shouldBe('context.getParameter(context.STENCIL_BACK_PASS_DEPTH_FAIL)', 'context.KEEP');
  93     shouldBe('context.getParameter(context.STENCIL_BACK_PASS_DEPTH_PASS)', 'context.KEEP');
  94     shouldBe('context.getParameter(context.STENCIL_BACK_REF)', '0');
  95
  96     // WebGL 1.0.2 - 5.14.3 types / ES 2.0.25 - 6.2 State tables - 6.18 page 152
  97     shouldBeType('context.getParameter(context.SUBPIXEL_BITS)', 'Number');
  98     shouldBeGreaterThanOrEqual('context.getParameter(context.SUBPIXEL_BITS)', '4');
  99
 100     shouldBeType('context.getParameter(context.SAMPLE_BUFFERS)', 'Number');
 101     shouldBeGreaterThanOrEqual('context.getParameter(context.SAMPLE_BUFFERS)', '0');
 102
 103     shouldBeType('context.getParameter(context.SAMPLES)', 'Number');
 104     shouldBeGreaterThanOrEqual('context.getParameter(context.SAMPLES)', '0');
 105
 106     shouldBeType('context.getParameter(context.DEPTH_BITS)', 'Number');
 107     shouldBeGreaterThanOrEqual('context.getParameter(context.DEPTH_BITS)', '0');
 108     shouldBeType('context.getParameter(context.RED_BITS)', 'Number');
 109     shouldBeGreaterThanOrEqual('context.getParameter(context.RED_BITS)', '0');
 110     shouldBeType('context.getParameter(context.GREEN_BITS)', 'Number');
 111     shouldBeGreaterThanOrEqual('context.getParameter(context.GREEN_BITS)', '0');
 112     shouldBeType('context.getParameter(context.BLUE_BITS)', 'Number');
 113     shouldBeGreaterThanOrEqual('context.getParameter(context.BLUE_BITS)', '0');
 114     shouldBeType('context.getParameter(context.ALPHA_BITS)', 'Number');
 115     shouldBeGreaterThanOrEqual('context.getParameter(context.ALPHA_BITS)', '0');
 116     shouldBeType('context.getParameter(context.STENCIL_BITS)', 'Number');
 117
 118     var stencilBits = context.getParameter(context.STENCIL_BITS);
 119     minimumRequiredStencilMask = (1 << stencilBits) - 1;
 120
 121     shouldBe('context.getParameter(context.STENCIL_BACK_VALUE_MASK) & minimumRequiredStencilMask', 'minimumRequiredStencilMask');
 122     shouldBe('context.getParameter(context.STENCIL_BACK_WRITEMASK) & minimumRequiredStencilMask', 'minimumRequiredStencilMask');
 123
 124     // If EXT_packed_depth_stencil is supported, STENCIL_BITS > 0; otherwise, STENCIL_BITS == 0.
 125     shouldBe('context.getParameter(context.STENCIL_BITS) >= 0', 'true');
 126     shouldBe('context.getParameter(context.STENCIL_CLEAR_VALUE)', '0');
 127     shouldBe('context.getParameter(context.STENCIL_FAIL)', 'context.KEEP');
 128     shouldBe('context.getParameter(context.STENCIL_FUNC)', 'context.ALWAYS');
 129     shouldBe('context.getParameter(context.STENCIL_PASS_DEPTH_FAIL)', 'context.KEEP');
 130     shouldBe('context.getParameter(context.STENCIL_PASS_DEPTH_PASS)', 'context.KEEP');
 131     shouldBe('context.getParameter(context.STENCIL_REF)', '0');
 132     shouldBe('context.getParameter(context.STENCIL_TEST)', 'false');
 133
 134     shouldBe('context.getParameter(context.STENCIL_VALUE_MASK) & minimumRequiredStencilMask', 'minimumRequiredStencilMask');
 135     shouldBe('context.getParameter(context.STENCIL_WRITEMASK) & minimumRequiredStencilMask', 'minimumRequiredStencilMask');
 136
 137     shouldBe('context.getParameter(context.TEXTURE_BINDING_2D)', 'null');
 138     shouldBe('context.getParameter(context.TEXTURE_BINDING_CUBE_MAP)', 'null');
 139     shouldBe('context.getParameter(context.UNPACK_ALIGNMENT)', '4');
 140     shouldBe('context.getParameter(context.UNPACK_FLIP_Y_WEBGL)', 'false');
 141     shouldBe('context.getParameter(context.UNPACK_PREMULTIPLY_ALPHA_WEBGL)', 'false');
 142     shouldBe('context.getParameter(context.VIEWPORT)', '[0, 0, 2, 2]');
 143     shouldBeType('context.getParameter(context.VIEWPORT)', 'Int32Array');
 144
 145     shouldBeGreaterThanOrEqual('context.getParameter(context.MAX_COMBINED_TEXTURE_IMAGE_UNITS)', '8');
 146     shouldBeGreaterThanOrEqual('context.getParameter(context.MAX_CUBE_MAP_TEXTURE_SIZE)', '16');
 147     shouldBeGreaterThanOrEqual('context.getParameter(context.MAX_FRAGMENT_UNIFORM_VECTORS)', '16');
 148     shouldBeGreaterThanOrEqual('context.getParameter(context.MAX_RENDERBUFFER_SIZE)', '1');
 149     shouldBeGreaterThanOrEqual('context.getParameter(context.MAX_TEXTURE_IMAGE_UNITS)', '8');
 150     shouldBeGreaterThanOrEqual('context.getParameter(context.MAX_TEXTURE_SIZE)', '64');
 151     shouldBeGreaterThanOrEqual('context.getParameter(context.MAX_VARYING_VECTORS)', '8');
 152     shouldBeGreaterThanOrEqual('context.getParameter(context.MAX_VERTEX_ATTRIBS)', '8');
 153     shouldBeGreaterThanOrEqual('context.getParameter(context.MAX_VERTEX_TEXTURE_IMAGE_UNITS)', '0');
 154     shouldBeGreaterThanOrEqual('context.getParameter(context.MAX_VERTEX_UNIFORM_VECTORS)', '128');
 155     // Note: This requirement should be removed from the spec IMO. Many impelementations
 156     // will be based on FBOs and FBOs might have a restriction smaller than the current screen size.
 157     // especially if there are multiple screens.
 158     shouldBeTrue('context.getParameter(context.MAX_VIEWPORT_DIMS)[0] >= window.screen.width');
 159     shouldBeTrue('context.getParameter(context.MAX_VIEWPORT_DIMS)[1] >= window.screen.height');
 160     shouldBeType('context.getParameter(context.MAX_VIEWPORT_DIMS)', 'Int32Array');
 161
 162     debug("");
 163     debug("check texture values");
 164     var maxTextures = context.getParameter(context.MAX_TEXTURE_IMAGE_UNITS);
 165     for (var ii = 0; ii < maxTextures; ++ii) {
 166       context.activeTexture(context.TEXTURE0 + ii);
 167       debug("check texture unit: " + ii);
 168       shouldBe('context.getParameter(context.TEXTURE_BINDING_2D)', 'null');
 169       shouldBe('context.getParameter(context.TEXTURE_BINDING_CUBE_MAP)', 'null');
 170     }
 171
 172     debug("");
 173     debug("check attrib values");
 174     var maxAttribs = context.getParameter(context.MAX_VERTEX_ATTRIBS);
 175     for (var ii = 0; ii < maxAttribs; ++ii) {
 176       debug("check attrib: " + ii);
 177       shouldBe('context.getVertexAttrib(ii, context.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING)', 'null');
 178       shouldBe('context.getVertexAttrib(ii, context.VERTEX_ATTRIB_ARRAY_ENABLED)', 'false');
 179       shouldBe('context.getVertexAttrib(ii, context.VERTEX_ATTRIB_ARRAY_SIZE)', '4');
 180       shouldBe('context.getVertexAttrib(ii, context.VERTEX_ATTRIB_ARRAY_STRIDE)', '0');
 181       shouldBe('context.getVertexAttrib(ii, context.VERTEX_ATTRIB_ARRAY_TYPE)', 'context.FLOAT');
 182       shouldBe('context.getVertexAttrib(ii, context.VERTEX_ATTRIB_ARRAY_NORMALIZED)', 'false');
 183       shouldBe('context.getVertexAttrib(ii, context.CURRENT_VERTEX_ATTRIB)', '[0, 0, 0, 1]');
 184       shouldBeType('context.getVertexAttrib(ii, context.CURRENT_VERTEX_ATTRIB)', 'Float32Array');
 185       shouldBe('context.getVertexAttribOffset(ii, context.VERTEX_ATTRIB_ARRAY_POINTER)', '0');
 186     }
 187
 188     shouldBe('context.getError()', 'context.NO_ERROR');
 189 }
 190
 191 debug("");
 192 var successfullyParsed = true;
 193
 194 </script>
 195 <script src="../../js/js-test-post.js"></script>
 196
 197 </body>
 198 </html>