third_party/WebKit/LayoutTests/fast/canvas/webgl/tex-sub-image-2d.html - Issue 1601093008: Remove duplicated WebGL layout tests.

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Issue 1601093008: Remove duplicated WebGL layout tests. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 4 years, 11 months ago

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1 <html>

2 <head>

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

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

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

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

7 #ifdef GL_ES

8 precision highp float;

9 #endif

10 uniform sampler2D tex;

11 varying vec2 texCoord;

12

13 void main()

14 {

15 float intensity = texture2D(tex, texCoord).a;

16 gl_FragColor = vec4(intensity, intensity, intensity, 1.0);

17 }

18 </script>

19

20 </head>

21 <body>

22 <canvas id="example" width="256px" height="1px"></canvas>

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

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

25 <script>

26 description('Tests texSubImage2D upload path from Uint8Array');

27

28 var wtu = WebGLTestUtils;

29 var canvas = document.getElementById("example");

30 var gl = wtu.create3DContext(canvas);

31 var program = wtu.setupProgram(

32 gl,

33 [wtu.setupSimpleTextureVertexShader(gl),

34 wtu.loadShaderFromScript(gl, "fshader")],

35 ['vPosition', 'texCoord0']);

36 wtu.setupUnitQuad(gl);

37 var textureWidth = 256;

38 var textureHeight = 1;

39

40 textureLoc = gl.getUniformLocation(program, "tex");

41

42 var texture = gl.createTexture();

43 gl.bindTexture(gl.TEXTURE_2D, texture);

44 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);

45 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);

46 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);

47 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);

48 // Allocate the texture object

49 gl.texImage2D(gl.TEXTURE_2D, 0, gl.ALPHA, textureWidth, textureHeight, 0, gl.ALP HA, gl.UNSIGNED_BYTE, null);

50 // Prepare the image data

51 var array = new Uint8Array(textureWidth);

52 for (var i = 0; i < textureWidth; i++)

53 array[i] = i;

54 // Fill the texture object with data -- this is actually the code path being tes ted

55 gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, textureWidth, textureHeight, gl.ALPHA, gl.UNSIGNED_BYTE, array);

56

57 // Clear and set up

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

59 gl.bindTexture(gl.TEXTURE_2D, texture);

60 gl.useProgram(program);

61 gl.uniform1i(textureLoc, 0);

62 // Draw the texture to the frame buffer

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

64

65 // Read back the frame buffer

66 var buf = new Uint8Array(textureWidth * textureHeight * 4);

67 gl.readPixels(0, 0, textureWidth, textureHeight, gl.RGBA, gl.UNSIGNED_BYTE, buf) ;

68

69 // Verify the frame buffer's contents

70 var passed = true;

71 for (var i = 0; i < textureWidth; i++) {

72 var val = i;

73 if (buf[4 * i + 0] != val \|\|

74 buf[4 * i + 1] != val \|\|

75 buf[4 * i + 2] != val) {

76 testFailed("pixel at (" + i + ", 0) was (" +

77 buf[4 * i + 0] + ", " +

78 buf[4 * i + 1] + ", " +

79 buf[4 * i + 2] + "), should be (" +

80 val + ", " + val + ", " + val + ")");

81 passed = false;

82 break;

83 }

84 }

85

86 if (passed)

87 testPassed("");

88 </script>

89 </body>

90 </html>

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