third_party/WebKit/LayoutTests/fast/canvas/webgl/array-bounds-clamping.html - Issue 2447493002: Removed some duplicate layout tests under fast/canvas/webgl

Side by Side Diff: third_party/WebKit/LayoutTests/fast/canvas/webgl/array-bounds-clamping.html

Issue 2447493002: Removed some duplicate layout tests under fast/canvas/webgl (Closed)

Patch Set: Created 4 years, 1 month ago

Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.

Jump to:

« no previous file with comments | « third_party/WebKit/LayoutTests/fast/canvas/webgl/WebGLContextEvent-expected.txt ('k') | third_party/WebKit/LayoutTests/fast/canvas/webgl/array-bounds-clamping-expected.txt » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Hide Comments ('s')

OLD	NEW
	(Empty)
1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"

2 "http://www.w3.org/TR/html4/loose.dtd">

3 <html>

4 <head>

5 <title>WebGL array bounds clamping conformance test.</title>

6 <script src="../../../resources/js-test.js"></script>

7 <script src="resources/webgl-test.js"> </script>

8 </head>

9 <body>

10 <canvas id="example" width="40" height="40" style="width: 40px; height: 40px;">< /canvas>

11 <div id="description"></div>

12 <div id="console"></div>

13 <script id="vshader" type="x-shader/x-vertex">

14 #ifdef GL_ES

15 precision highp float;

16 #endif

17 attribute vec4 vPosition;

18 attribute float index;

19 uniform float shades[8];

20 varying vec4 texColor;

21 void main()

22 {

23 gl_Position = vPosition;

24 texColor = vec4(shades[int(index)], 0, 0, 1.0);

25 }

26 </script>

27

28 <script id="fshader" type="x-shader/x-fragment">

29 #ifdef GL_ES

30 precision highp float;

31 #endif

32 varying vec4 texColor;

33 void main()

34 {

35 gl_FragColor = texColor;

36 }

37 </script>

38

39 <script>

40 function init()

41 {

42 if (window.initNonKhronosFramework)

43 window.initNonKhronosFramework(false);

44

45 debug("Checks that array access in a shader can not read out of bounds");

46 debug("");

47

48 gl = initWebGL("example", "vshader", "fshader", [ "vPosition", "index" ],

49 [ 1, 1, 1, 1 ], 1);

50

51 gl.disable(gl.DEPTH_TEST);

52 gl.disable(gl.BLEND);

53

54 var vertexObject = gl.createBuffer();

55 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);

56 gl.bufferData(gl.ARRAY_BUFFER,

57 new Float32Array([ -1,1,0, 1,1,0, -1,-1,0,

58 -1,-1,0, 1,1,0, 1,-1,0 ]),

59 gl.STATIC_DRAW);

60 gl.enableVertexAttribArray(0);

61 gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0);

62

63 var vertexObject = gl.createBuffer();

64 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);

65 gl.bufferData(gl.ARRAY_BUFFER,

66 // Create an array that exercises well outside the

67 // limits on each side, near the limits, and the

68 // exact limits.

69 // This should be clamped to [0, 0, 0, 7, 7, 7]

70 new Float32Array([ -123456789, -1, 0, 7, 8, 123456789]),

71 gl.STATIC_DRAW);

72 gl.enableVertexAttribArray(1);

73 gl.vertexAttribPointer(1, 1, gl.FLOAT, false, 0, 0);

74

75 var loc = gl.getUniformLocation(gl.program, "shades");

76 gl.uniform1fv(loc, [0.25, 0.5, 0, 0, 0, 0, 0.75, 1]);

77

78 checkRedValue(0, 38, 64, "Top left corner should clamp to index 0");

79 checkRedValue(37, 38, 64, "Inside top right corner should clamp to index 0") ;

80 checkRedValue(0, 1, 64, "Inside bottom left corner should clamp to index 0") ;

81

82 checkRedValue(38, 0, 255, "Bottom right corner should clamp to index 7");

83 checkRedValue(3, 1, 255, "Outside bottom left corner should clamp to index 7 ");

84 checkRedValue(38, 37, 255, "Outside top right corner should clamp to index 7 ");

85

86 function checkRedValue(x, y, value, msg) {

87 gl.clear(gl.COLOR_BUFFER_BIT \| gl.DEPTH_BUFFER_BIT);

88 gl.drawArrays(gl.TRIANGLES, 0, 6);

89 gl.flush();

90 var buf = new Uint8Array(4);

91 gl.readPixels(x, y, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, buf);

92 if (buf[0] != value \|\| buf[1] != 0 \|\| buf[2] != 0 \|\| buf[3] != 255) {

93 debug('expected: rgb(' + value + ', 0, 0, 255) was rgb(' + buf[0] + ', ' + buf[1] + ', ' + buf[2] + ', ' + buf[3] + ')');

94 testFailed(msg);

95 return;

96 }

97 testPassed(msg);

98 }

99 }

100

101 init();

102 </script>

103 </body>

104 </html>

105

OLD	NEW