third_party/WebKit/LayoutTests/fast/canvas/webgl/draw-arrays-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 drawArrays 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.bindBuffer(context.ARRAY_BUFFER, vertexObject);
  22 context.enableVertexAttribArray(0);
  23
  24 debug("Test empty buffer")
  25 context.bufferData(context.ARRAY_BUFFER, new Float32Array([  ]), context.STATIC_DRAW);
  26 context.vertexAttribPointer(0, 3, context.FLOAT, false, 0, 0);
  27 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawArrays(context.TRIANGLES, 0, 1)");
  28 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawArrays(context.TRIANGLES, 0, 10000)");
  29 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawArrays(context.TRIANGLES, 0, 10000000000000)");
  30 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, 0, -1)");
  31 shouldGenerateGLError(context, context.NO_ERROR, "context.drawArrays(context.TRIANGLES, 1, 0)");
  32 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, -1, 0)");
  33 shouldGenerateGLError(context, context.NO_ERROR, "context.drawArrays(context.TRIANGLES, 0, 0)");
  34 shouldGenerateGLError(context, context.NO_ERROR, "context.drawArrays(context.TRIANGLES, 100, 0)");
  35 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, 1, -1)");
  36 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, -1, 1)");
  37
  38 debug("")
  39 debug("Test buffer with 3 float vectors")
  40 context.bufferData(context.ARRAY_BUFFER, new Float32Array([ 0,0.5,0, -0.5,-0.5,0, 0.5,-0.5,0 ]), context.STATIC_DRAW);
  41 context.vertexAttribPointer(0, 3, context.FLOAT, false, 0, 0);
  42 shouldGenerateGLError(context, context.NO_ERROR, "context.drawArrays(context.TRIANGLES, 0, 3)");
  43 shouldGenerateGLError(context, context.INVALID_ENUM, "context.drawArrays(0x0009, 0, 3)"); // GL_POLYGON
  44 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawArrays(context.TRIANGLES, 3, 2)");
  45 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawArrays(context.TRIANGLES, 0, 10000)");
  46 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawArrays(context.TRIANGLES, 0, 10000000000000)");
  47 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, 0, -1)");
  48 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, -1, 0)");
  49 shouldGenerateGLError(context, context.NO_ERROR, "context.drawArrays(context.TRIANGLES, 0, 0)");
  50 shouldGenerateGLError(context, context.NO_ERROR, "context.drawArrays(context.TRIANGLES, 100, 0)");
  51 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, 1, -1)");
  52 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, -1, 1)");
  53
  54 debug("")
  55 debug("Test buffer with interleaved (3+2) float vectors")
  56
  57 var program2 = createProgram(context,
  58                              "attribute vec3 aOne;" +
  59                              "attribute vec2 aTwo;" +
  60                              "void main() { gl_Position = vec4(aOne, 1.0) + vec4(aTwo, 0.0, 1.0); }",
  61                              "void main() { gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); }",
  62                              [ "aOne", "aTwo" ]);
  63 if (!program2) {
  64     testFailed("failed to create test program");
  65 }
  66
  67 context.useProgram(program2);
  68
  69 var vbo = context.createBuffer();
  70 context.bindBuffer(context.ARRAY_BUFFER, vbo);
  71 // enough for 9 vertices, so 3 triangles
  72 context.bufferData(context.ARRAY_BUFFER, new Float32Array(9*5), context.STATIC_DRAW);
  73
  74 // bind first 3 elements, with a stride of 5 float elements
  75 context.vertexAttribPointer(0, 3, context.FLOAT, false, 5*4, 0);
  76 // bind 2 elements, starting after the first 3; same stride of 5 float elements
  77 context.vertexAttribPointer(1, 2, context.FLOAT, false, 5*4, 3*4);
  78
  79 context.enableVertexAttribArray(0);
  80 context.enableVertexAttribArray(1);
  81
  82 shouldGenerateGLError(context, context.NO_ERROR, "context.drawArrays(context.TRIANGLES, 0, 9)");
  83
  84 // negative values must generate INVALID_VALUE; they can never be valid
  85 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, 0, -500)");
  86 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, -200, 1)");
  87 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, -200, -500)");
  88
  89 // 0xffffffff needs to convert to a 'long' IDL argument as -1, as per
  90 // WebIDL 4.1.7.  JS ToInt32(0xffffffff) == -1, which is the first step
  91 // of the conversion.  Thus INVALID_VALUE.
  92 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, 0, 0xffffffff)");
  93 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, 0xffffffff, 1)");
  94 shouldGenerateGLError(context, context.INVALID_VALUE, "context.drawArrays(context.TRIANGLES, 0xffffffff, 0xffffffff)");
  95
  96 // values that could otherwise be valid but aren't due to bindings generate
  97 // INVALID_OPERATION
  98 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawArrays(context.TRIANGLES, 0, 200)");
  99 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawArrays(context.TRIANGLES, 0, 0x7fffffff)");
 100 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawArrays(context.TRIANGLES, 0x7fffffff, 1)");
 101 shouldGenerateGLError(context, context.INVALID_OPERATION, "context.drawArrays(context.TRIANGLES, 0x7fffffff, 0x7fffffff)");
 102
 103 debug("")
 104 </script>
 105
 106 </body>
 107 </html>