third_party/WebKit/LayoutTests/fast/canvas/webgl/draw-elements-out-of-bounds.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("Test of drawElements with out-of-bounds parameters");
  12
  13 if (window.internals)
  14     window.internals.settings.setWebGLErrorsToConsoleEnabled(false);
  15
  16 var context = create3DContext();
  17 var program = loadStandardProgram(context);
  18
  19 context.useProgram(program);
  20 var vertexObject = context.createBuffer();
  21 context.enableVertexAttribArray(0);
  22 context.bindBuffer(context.ARRAY_BUFFER, vertexObject);
  23 context.bufferData(context.ARRAY_BUFFER, new Float32Array([ 0,0.5,0, -0.5,-0.5,0, 0.5,-0.5,0 ]), context.STATIC_DRAW);
  24 context.vertexAttribPointer(0, 3, context.FLOAT, false, 0, 0);
  25
  26 var indexObject = context.createBuffer();
  27
  28 debug("Test empty index buffer")
  29 context.bindBuffer(context.ELEMENT_ARRAY_BUFFER, indexObject);
  30 context.bufferData(context.ELEMENT_ARRAY_BUFFER, new Uint8Array([  ]), context.STATIC_DRAW);
  31 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 3, context.UNSIGNED_BYTE, 0)");
  32 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 10000, context.UNSIGNED_BYTE, 0)");
  33 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 10000000000000, context.UNSIGNED_BYTE, 0)");
  34 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawElements(context.TRIANGLES, -1, context.UNSIGNED_BYTE, 0)");
  35 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 1, context.UNSIGNED_BYTE, 0)");
  36 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawElements(context.TRIANGLES, 0, context.UNSIGNED_BYTE, -1)");
  37 shouldGenerateGLError(context, context.NO_ERROR, "context.drawElements(context.TRIANGLES, 0, context.UNSIGNED_BYTE, 0)");
  38 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawElements(context.TRIANGLES, -1, context.UNSIGNED_BYTE, 1)");
  39 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawElements(context.TRIANGLES, 1, context.UNSIGNED_BYTE, -1)");
  40
  41 debug("")
  42 debug("Test buffer with 3 byte indexes")
  43 context.bindBuffer(context.ELEMENT_ARRAY_BUFFER, indexObject);
  44 context.bufferData(context.ELEMENT_ARRAY_BUFFER, new Uint8Array([ 0, 1, 2 ]), context.STATIC_DRAW);
  45 shouldGenerateGLError(context, context.NO_ERROR, "context.drawElements(context.TRIANGLES, 3, context.UNSIGNED_BYTE, 0)");
  46 shouldGenerateGLError(context, context.INVALID_ENUM, "context.drawElements(context.TRIANGLES, 3, context.UNSIGNED_INT, 0)");
  47 shouldGenerateGLError(context, context.INVALID_ENUM, "context.drawElements(0x0009, 3, context.UNSIGNED_BYTE, 0)"); // GL_POLYGON
  48 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 3, context.UNSIGNED_BYTE, 2)");
  49 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 10000, context.UNSIGNED_BYTE, 0)");
  50 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 10000000000000, context.UNSIGNED_BYTE, 0)");
  51 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawElements(context.TRIANGLES, -1, context.UNSIGNED_BYTE, 0)");
  52 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawElements(context.TRIANGLES, 0, context.UNSIGNED_BYTE, -1)");
  53 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawElements(context.TRIANGLES, -1, context.UNSIGNED_BYTE, 1)");
  54 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawElements(context.TRIANGLES, 1, context.UNSIGNED_BYTE, -1)");
  55 shouldGenerateGLError(context, context.NO_ERROR, "context.drawElements(context.TRIANGLES, 0, context.UNSIGNED_BYTE, 4)");
  56 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawElements(context.TRIANGLES, 0xffffffff, context.UNSIGNED_BYTE, 0)");
  57 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 0x7fffffff, context.UNSIGNED_BYTE, 0)");
  58 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 0x7fffffff, context.UNSIGNED_BYTE, 0x7fffffff)");
  59
  60 shouldGenerateGLError(context, context.NO_ERROR, "context.bufferData(context.ELEMENT_ARRAY_BUFFER, (new Uint8Array([ 3, 0, 1, 2 ])).subarray(1), context.STATIC_DRAW)");
  61 shouldGenerateGLError(context, context.NO_ERROR, "context.drawElements(context.TRIANGLES, 3, context.UNSIGNED_BYTE, 0)");
  62 shouldGenerateGLError(context, context.NO_ERROR, "context.bufferSubData(context.ELEMENT_ARRAY_BUFFER, 0, new Uint8Array([ 3, 0, 1]))");
  63 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 3, context.UNSIGNED_BYTE, 0)");
  64 shouldGenerateGLError(context, context.NO_ERROR, "context.bufferSubData(context.ELEMENT_ARRAY_BUFFER, 0, (new Uint8Array([ 3, 0, 1, 2 ])).subarray(1))");
  65 shouldGenerateGLError(context, context.NO_ERROR, "context.drawElements(context.TRIANGLES, 3, context.UNSIGNED_BYTE, 0)");
  66 shouldGenerateGLError(context, context.NO_ERROR, "context.drawElements(context.TRIANGLES, 0, context.UNSIGNED_BYTE, 0)");
  67
  68 debug("")
  69 debug("Test buffer with interleaved (3+2) float vectors")
  70
  71 var program2 = createProgram(context,
  72                              "attribute vec3 aOne;" +
  73                              "attribute vec2 aTwo;" +
  74                              "void main() { gl_Position = vec4(aOne, 1.0) + vec4(aTwo, 0.0, 1.0); }",
  75                              "void main() { gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); }",
  76                              [ "aOne", "aTwo" ]);
  77 if (!program2) {
  78     testFailed("failed to create test program");
  79 }
  80
  81 context.useProgram(program2);
  82
  83 var vbo = context.createBuffer();
  84 context.bindBuffer(context.ARRAY_BUFFER, vbo);
  85 // enough for 9 vertices, so 3 triangles
  86 context.bufferData(context.ARRAY_BUFFER, new Float32Array(9*5), context.STATIC_DRAW);
  87
  88 // bind first 3 elements, with a stride of 5 float elements
  89 context.vertexAttribPointer(0, 3, context.FLOAT, false, 5*4, 0);
  90 // bind 2 elements, starting after the first 3; same stride of 5 float elements
  91 context.vertexAttribPointer(1, 2, context.FLOAT, false, 5*4, 3*4);
  92
  93 context.enableVertexAttribArray(0);
  94 context.enableVertexAttribArray(1);
  95
  96 var ebo = context.createBuffer();
  97 context.bindBuffer(context.ELEMENT_ARRAY_BUFFER, ebo);
  98 context.bufferData(context.ELEMENT_ARRAY_BUFFER, new Uint16Array([ 0, 1, 2,
  99                                                                    1, 2, 0,
 100                                                                    2, 0, 1,
 101                                                                    200, 200, 200,
 102                                                                    0x7fff, 0x7fff, 0x7fff,
 103                                                                    0xffff, 0xffff, 0xffff ]),
 104                    context.STATIC_DRAW);
 105
 106 shouldGenerateGLError(context, context.NO_ERROR, "context.drawElements(context.TRIANGLES, 9, context.UNSIGNED_SHORT, 0)");
 107
 108 // invalid type arguments
 109 shouldGenerateGLError(context, context.INVALID_ENUM, "context.drawElements(context.TRIANGLES, 9, context.FLOAT, 0)");
 110 shouldGenerateGLError(context, context.INVALID_ENUM, "context.drawElements(context.TRIANGLES, 9, context.SHORT, 0)");
 111 shouldGenerateGLError(context, context.INVALID_ENUM, "context.drawElements(context.TRIANGLES, 9, context.UNSIGNED_INT, 0)");
 112
 113 // invalid operation with indices that would be valid with correct bindings
 114 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 9, context.UNSIGNED_SHORT, 1000)");
 115 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 12, context.UNSIGNED_SHORT, 0)");
 116 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 15, context.UNSIGNED_SHORT, 0)");
 117 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 18, context.UNSIGNED_SHORT, 0)");
 118 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 3, context.UNSIGNED_SHORT, 2*15)");
 119
 120 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawElements(context.TRIANGLES, 0xffffffff, context.UNSIGNED_SHORT, 0)");
 121 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 0x7fffffff, context.UNSIGNED_SHORT, 0)");
 122
 123 shouldGenerateGLError(context, context.NO_ERROR, "context.drawElements(context.TRIANGLES, 0, context.UNSIGNED_SHORT, 0)");
 124
 125 // invalid operation with offset that's not a multiple of the type size
 126 shouldGenerateGLError(context, context.NO_ERROR, "context.drawElements(context.TRIANGLES, 6, context.UNSIGNED_SHORT, 0)");
 127 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 6, context.UNSIGNED_SHORT, 1)");
 128 shouldGenerateGLError(context, context.NO_ERROR, "context.drawElements(context.TRIANGLES, 6, context.UNSIGNED_SHORT, 2)");
 129
 130 // invalid operation if no buffer is bound to ELEMENT_ARRAY_BUFFER
 131 context.bindBuffer(context.ELEMENT_ARRAY_BUFFER, null);
 132 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawElements(context.TRIANGLES, 6, context.UNSIGNED_SHORT, 0)");
 133
 134 debug("")
 135 </script>
 136
 137 </body>
 138 </html>