third_party/WebKit/LayoutTests/fast/canvas/webgl/framebuffer-bindings-unaffected-on-resize.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

2 <!DOCTYPE html>

3 <html>

4 <head>

5 <meta charset="utf-8">

6 <title>Verifies that GL framebuffer bindings do not change when canvas is resize d</title>

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

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

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

10 </head>

11 <body>

12 <canvas id="example" width="4px" height="4px"></canvas>

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

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

15 <script>

16 description("Verifies that GL framebuffer bindings do not change when canvas is resized");

17

18 if (window.initNonKhronosFramework) {

19 window.initNonKhronosFramework(true);

20 }

21

22 var err;

23 var wtu = WebGLTestUtils;

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

25 var gl = wtu.create3DContext(canvas);

26 var green = [0, 255, 0, 255];

27 var blue = [0, 0, 255, 255];

28 var fboSize = 2;

29 shouldBeTrue("fboSize < canvas.width");

30 var fbo = gl.createFramebuffer();

31 gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);

32 var fboTex = gl.createTexture();

33 gl.activeTexture(gl.TEXTURE1);

34 gl.bindTexture(gl.TEXTURE_2D, fboTex);

35 gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, fbo Tex, 0);

36 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, fboSize, fboSize, 0, gl.RGBA, gl.UNSIGN ED_BYTE, null);

37 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);

38 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);

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

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

41 shouldBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE") ;

42

43 function checkFBO(color, msg) {

44 wtu.checkCanvasRect(gl, 0, 0, fboSize, fboSize, color, msg);

45 wtu.checkCanvasRect(gl, fboSize, fboSize, fboSize, fboSize, [0, 0, 0, 0], "are a outside fbo should be transparent black");

46 }

47

48 // The FBO is 2x2 and it's bound so clearing should clear a 2x2 area

49 // and calling read pixels should read the clear color in that 2x2 area

50 // and 0,0,0,0 outside that area.

51 //

52 // If the FBO is no longer bound because of a WebGL implementation error

53 // then likely the clear will clear the backbuffer and reading outside

54 // the 2x2 area will not be 0,0,0,0

55

56 function test() {

57 gl.clearColor(0, 0, 1, 1);

58 gl.clear(gl.COLOR_BUFFER_BIT);

59 checkFBO(blue, "should be blue");

60 gl.clearColor(0, 1, 0, 1);

61 gl.clear(gl.COLOR_BUFFER_BIT);

62 checkFBO(green, "should be green");

63 }

64

65 debug("test before resizing canvas");

66 test();

67 debug("test after resizing canvas");

68 canvas.width = 8;

69 test();

70 debug("test after resizing canvas and waiting for compositing");

71 canvas.width = 16;

72 wtu.waitForComposite(5, function() {

73 test();

74 finishTest();

75 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors.");

76 });

77

78 successfullyParsed = true;

79 </script>

80 </body>

81 </html>

82

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