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| 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 "Texture Complete" texture 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 <canvas id="canvas2d" width="16" height="16" style="width: 40px; height: 40px;">
</canvas> | |
| 12 <div id="description"></div> | |
| 13 <div id="console"></div> | |
| 14 <script id="vshader" type="x-shader/x-vertex"> | |
| 15 #ifdef GL_ES | |
| 16 precision highp float; | |
| 17 #endif | |
| 18 attribute vec4 vPosition; | |
| 19 attribute vec2 texCoord0; | |
| 20 varying vec2 texCoord; | |
| 21 void main() | |
| 22 { | |
| 23 gl_Position = vPosition; | |
| 24 texCoord = texCoord0; | |
| 25 } | |
| 26 </script> | |
| 27 | |
| 28 <script id="fshader" type="x-shader/x-fragment"> | |
| 29 #ifdef GL_ES | |
| 30 precision highp float; | |
| 31 #endif | |
| 32 uniform sampler2D tex; | |
| 33 varying vec2 texCoord; | |
| 34 void main() | |
| 35 { | |
| 36 gl_FragColor = texture2D(tex, texCoord); | |
| 37 } | |
| 38 </script> | |
| 39 | |
| 40 <script> | |
| 41 function init() | |
| 42 { | |
| 43 if (window.initNonKhronosFramework) { | |
| 44 window.initNonKhronosFramework(false); | |
| 45 } | |
| 46 | |
| 47 if (window.internals) | |
| 48 window.internals.settings.setWebGLErrorsToConsoleEnabled(false); | |
| 49 | |
| 50 debug("Checks that a texture that is not -texture-complete- does not draw if"+ | |
| 51 " filtering needs mips"); | |
| 52 debug(""); | |
| 53 | |
| 54 var canvas2d = document.getElementById("canvas2d"); | |
| 55 var ctx2d = canvas2d.getContext("2d"); | |
| 56 ctx2d.fillStyle = "rgba(0,192,128,255)"; | |
| 57 ctx2d.fillRect(0, 0, 16, 16); | |
| 58 | |
| 59 gl = initWebGL("example", "vshader", "fshader", [ "vPosition", "texCoord0"], | |
| 60 [ 0, 0, 0, 1 ], 1); | |
| 61 | |
| 62 gl.disable(gl.DEPTH_TEST); | |
| 63 gl.disable(gl.BLEND); | |
| 64 | |
| 65 var vertexObject = gl.createBuffer(); | |
| 66 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); | |
| 67 gl.bufferData(gl.ARRAY_BUFFER, | |
| 68 new Float32Array([ -1,1,0, 1,1,0, -1,-1,0, | |
| 69 -1,-1,0, 1,1,0, 1,-1,0 ]), | |
| 70 gl.STATIC_DRAW); | |
| 71 gl.enableVertexAttribArray(0); | |
| 72 gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0); | |
| 73 | |
| 74 var vertexObject = gl.createBuffer(); | |
| 75 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); | |
| 76 gl.bufferData(gl.ARRAY_BUFFER, | |
| 77 new Float32Array([ 0,0, 1,0, 0,1, | |
| 78 0,1, 1,0, 1,1 ]), | |
| 79 gl.STATIC_DRAW); | |
| 80 gl.enableVertexAttribArray(1); | |
| 81 gl.vertexAttribPointer(1, 2, gl.FLOAT, false, 0, 0); | |
| 82 | |
| 83 var tex = gl.createTexture(); | |
| 84 gl.bindTexture(gl.TEXTURE_2D, tex); | |
| 85 // 16x16 texture no mips | |
| 86 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas2d); | |
| 87 | |
| 88 var loc = gl.getUniformLocation(gl.program, "tex"); | |
| 89 gl.uniform1i(loc, 0); | |
| 90 | |
| 91 checkBuffer(0,0,0,255, | |
| 92 "texture that is not -texture-complete- when " + | |
| 93 "TEXTURE_MIN_FILTER not NEAREST or LINEAR should draw with 0,0,0,255"); | |
| 94 | |
| 95 function checkBuffer(r, g, b, a, msg) { | |
| 96 gl.clearColor(1,1,1,1); | |
| 97 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); | |
| 98 gl.drawArrays(gl.TRIANGLES, 0, 6); | |
| 99 gl.flush(); | |
| 100 var buf = new Uint8Array(4 * 4 * 4); | |
| 101 gl.readPixels(0, 0, 4, 4, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 102 for (var i = 0; i < 4 * 4; ++i) { | |
| 103 var offset = i * 4; | |
| 104 if (buf[offset + 0] != r || | |
| 105 buf[offset + 1] != g || | |
| 106 buf[offset + 2] != b || | |
| 107 buf[offset + 3] != a) { | |
| 108 debug('expected: ' + r + ', ' + g + ', ' + b + ', ' + a + | |
| 109 ' was: ' + | |
| 110 buf[offset + 0] + ', ' + | |
| 111 buf[offset + 1] + ', ' + | |
| 112 buf[offset + 2] + ', ' + | |
| 113 buf[offset + 3]); | |
| 114 testFailed(msg); | |
| 115 return; | |
| 116 } | |
| 117 } | |
| 118 testPassed(msg); | |
| 119 } | |
| 120 } | |
| 121 | |
| 122 init(); | |
| 123 </script> | |
| 124 | |
| 125 | |
| 126 </body> | |
| 127 </html> | |
| 128 | |
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