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1 <!DOCTYPE html> | |
2 <html> | |
3 <head> | |
4 <meta charset="utf-8"> | |
5 <title>glsl long variable name mapping tests</title> | |
6 <link rel="stylesheet" href="../../../resources/js-test-style.css"/> | |
7 <script src="../../../resources/js-test-pre.js"></script> | |
8 <script src="../../resources/webgl-test.js"> </script> | |
9 </head> | |
10 <body> | |
11 <canvas id="example" width="50" height="50"> | |
12 There is supposed to be an example drawing here, but it's not important. | |
13 </canvas> | |
14 <div id="description">Verify that shader long variable names works fine if t
hey are within 256 characters.</div> | |
15 <div id="console"></div> | |
16 <script id="vshader" type="x-shader/x-vertex"> | |
17 attribute vec4 vPosition012345678901234567890123456789012345678901234567
89012345678901234567890123456789012345678901234567890123456789012345678901234567
89012345678901234567890123456789012345678901234567890123456789012345678901234567
890123456789012345678901234567890123456; | |
18 varying float alpha01234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890; | |
19 void main() | |
20 { | |
21 alpha012345678901234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
3456789012345678901234567890 = 1.0; | |
22 gl_Position = vPosition012345678901234567890123456789012345678901234
56789012345678901234567890123456789012345678901234567890123456789012345678901234
56789012345678901234567890123456789012345678901234567890123456789012345678901234
567890123456789012345678901234567890123456; | |
23 } | |
24 </script> | |
25 | |
26 <script id="fshader" type="x-shader/x-fragment"> | |
27 precision mediump float; | |
28 varying float alpha01234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890; | |
29 uniform float color01234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567[3]; | |
30 void main() | |
31 { | |
32 for (int i0123456789012345678901234567890123456789012345678901234567
89012345678901234567890123456789012345678901234567890123456789012345678901234567
89012345678901234567890123456789012345678901234567890123456789012345678901234567
8901234567890123456789012345678901234 = 0; i012345678901234567890123456789012345
67890123456789012345678901234567890123456789012345678901234567890123456789012345
67890123456789012345678901234567890123456789012345678901234567890123456789012345
67890123456789012345678901234567890123456789012345678901234 < 1; ++i012345678901
23456789012345678901234567890123456789012345678901234567890123456789012345678901
23456789012345678901234567890123456789012345678901234567890123456789012345678901
23456789012345678901234567890123456789012345678901234567890123456789012345678901
234) | |
33 { | |
34 gl_FragColor = vec4(color012345678901234567890123456789012345678
90123456789012345678901234567890123456789012345678901234567890123456789012345678
90123456789012345678901234567890123456789012345678901234567890123456789012345678
9012345678901234567890123456789012345678901234567[0], color012345678901234567890
12345678901234567890123456789012345678901234567890123456789012345678901234567890
12345678901234567890123456789012345678901234567890123456789012345678901234567890
1234567890123456789012345678901234567890123456789012345678901234567[1], color012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567[2], alpha01234567890123456789012345678901234567890123456789012345678901234
56789012345678901234567890123456789012345678901234567890123456789012345678901234
56789012345678901234567890123456789012345678901234567890123456789012345678901234
56789012345678901234567890); | |
35 } | |
36 } | |
37 </script> | |
38 | |
39 <script> | |
40 function fail(x,y, buf, shouldBe) | |
41 { | |
42 var i = (y*50+x) * 4; | |
43 var reason = "pixel at ("+x+","+y+") is ("+buf[i]+","+buf[i+1]+","+b
uf[i+2]+","+buf[i+3]+"), should be "+shouldBe; | |
44 testFailed(reason); | |
45 } | |
46 | |
47 function pass() | |
48 { | |
49 testPassed("drawing is correct"); | |
50 } | |
51 | |
52 if (window.initNonKhronosFramework) { | |
53 window.initNonKhronosFramework(false); | |
54 } | |
55 | |
56 gl = initWebGL("example", "vshader", "fshader", [ "vPosition012345678901
23456789012345678901234567890123456789012345678901234567890123456789012345678901
23456789012345678901234567890123456789012345678901234567890123456789012345678901
234567890123456789012345678901234567890123456789012345678901234567890123456"], [
0, 0, 0, 1 ], 1); | |
57 | |
58 var prog = gl.getParameter(gl.CURRENT_PROGRAM); | |
59 shouldBeNonNull(prog); | |
60 var redLoc = gl.getUniformLocation(prog, "color0123456789012345678901234
56789012345678901234567890123456789012345678901234567890123456789012345678901234
56789012345678901234567890123456789012345678901234567890123456789012345678901234
567890123456789012345678901234567890123456789012345678901234567[0]"); | |
61 shouldBeNonNull(redLoc); | |
62 var greenLoc = gl.getUniformLocation(prog, "color01234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789012345678901234567890123456789012345678901234567[1]"); | |
63 shouldBeNonNull(greenLoc); | |
64 var blueLoc = gl.getUniformLocation(prog, "color012345678901234567890123
45678901234567890123456789012345678901234567890123456789012345678901234567890123
45678901234567890123456789012345678901234567890123456789012345678901234567890123
4567890123456789012345678901234567890123456789012345678901234567[2]"); | |
65 shouldBeNonNull(blueLoc); | |
66 | |
67 shouldBe("gl.getProgramParameter(prog, gl.ACTIVE_ATTRIBUTES)", "1"); | |
68 var activeAttrib = gl.getActiveAttrib(prog, 0); | |
69 shouldBeNonNull(activeAttrib); | |
70 shouldBe("activeAttrib.size", "1"); | |
71 shouldBe("activeAttrib.type", "gl.FLOAT_VEC4"); | |
72 shouldBe("activeAttrib.name", "'vPosition0123456789012345678901234567890
12345678901234567890123456789012345678901234567890123456789012345678901234567890
12345678901234567890123456789012345678901234567890123456789012345678901234567890
12345678901234567890123456789012345678901234567890123456'"); | |
73 | |
74 shouldBe("gl.getProgramParameter(prog, gl.ACTIVE_UNIFORMS)", "1"); | |
75 var activeUniform = gl.getActiveUniform(prog, 0); | |
76 shouldBeNonNull(activeUniform); | |
77 shouldBe("activeUniform.size", "3"); | |
78 shouldBe("activeUniform.type", "gl.FLOAT"); | |
79 shouldBe("activeUniform.name", "'color0123456789012345678901234567890123
45678901234567890123456789012345678901234567890123456789012345678901234567890123
45678901234567890123456789012345678901234567890123456789012345678901234567890123
456789012345678901234567890123456789012345678901234567[0]'"); | |
80 | |
81 gl.uniform1f(redLoc, 1.0); | |
82 gl.uniform1f(greenLoc, 0.0); | |
83 gl.uniform1f(blueLoc, 1.0); | |
84 | |
85 var vertexObject = gl.createBuffer(); | |
86 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); | |
87 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ 0,0.5,0, -0.5,-0.5,0,
0.5,-0.5,0 ]), gl.STATIC_DRAW); | |
88 gl.enableVertexAttribArray(0); | |
89 gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0); | |
90 | |
91 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); | |
92 gl.drawArrays(gl.TRIANGLES, 0, 3); | |
93 | |
94 var buf = new Uint8Array(50 * 50 * 4); | |
95 gl.readPixels(0, 0, 50, 50, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
96 shouldBe("gl.getError()", "gl.NO_ERROR"); | |
97 | |
98 function checkPixels() | |
99 { | |
100 // Test several locations | |
101 // First line should be all black | |
102 for (var i = 0; i < 50; ++i) | |
103 if (buf[i*4] != 0 || buf[i*4+1] != 0 || buf[i*4+2] != 0 || buf[i
*4+3] != 255) { | |
104 fail(i, 0, buf, "(0,0,0,255)"); | |
105 return; | |
106 } | |
107 | |
108 // Line 15 should be red for at least 10 red pixels starting 20 pixe
ls in | |
109 var offset = (15*50+20) * 4; | |
110 for (var i = 0; i < 10; ++i) | |
111 if (buf[offset+i*4] != 255 || buf[offset+i*4+1] != 0 || buf[offs
et+i*4+2] != 255 || buf[offset+i*4+3] != 255) { | |
112 fail(20 + i, 15, buf, "(255,0,255,255)"); | |
113 return; | |
114 } | |
115 // Last line should be all black | |
116 offset = (49*50) * 4; | |
117 for (var i = 0; i < 50; ++i) | |
118 if (buf[offset+i*4] != 0 || buf[offset+i*4+1] != 0 || buf[offset
+i*4+2] != 0 || buf[offset+i*4+3] != 255) { | |
119 fail(i, 49, buf, "(0,0,0,255)"); | |
120 return; | |
121 } | |
122 | |
123 pass(); | |
124 } | |
125 checkPixels(); | |
126 successfullyParsed = true; | |
127 </script> | |
128 <script src="../../../resources/js-test-post.js"></script> | |
129 </body> | |
130 </html> | |
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