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1 <!DOCTYPE HTML> |
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2 <title>Canvas test: 2d.gradient.radial.cone.top</title> |
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3 <script src="/tests/SimpleTest/SimpleTest.js"></script> |
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4 <link rel="stylesheet" href="/tests/SimpleTest/test.css"> |
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5 <body> |
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6 <canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> |
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7 <script> |
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8 |
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9 function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) { |
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10 var pixel = ctx.getImageData(x, y, 1, 1); |
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11 var pr = pixel.data[0], |
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12 pg = pixel.data[1], |
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13 pb = pixel.data[2], |
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14 pa = pixel.data[3]; |
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15 ok(r-d <= pr && pr <= r+d && |
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16 g-d <= pg && pg <= g+d && |
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17 b-d <= pb && pb <= b+d && |
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18 a-d <= pa && pa <= a+d, |
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19 "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d); |
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20 } |
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21 |
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22 function todo_isPixel(ctx, x,y, r,g,b,a, pos, colour, d) { |
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23 var pixel = ctx.getImageData(x, y, 1, 1); |
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24 var pr = pixel.data[0], |
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25 pg = pixel.data[1], |
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26 pb = pixel.data[2], |
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27 pa = pixel.data[3]; |
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28 todo(r-d <= pr && pr <= r+d && |
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29 g-d <= pg && pg <= g+d && |
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30 b-d <= pb && pb <= b+d && |
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31 a-d <= pa && pa <= a+d, |
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32 "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d); |
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33 } |
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34 |
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35 SimpleTest.waitForExplicitFinish(); |
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36 addLoadEvent(function () { |
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37 |
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38 var canvas = document.getElementById('c'); |
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39 var ctx = canvas.getContext('2d'); |
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40 |
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41 ctx.fillStyle = '#f00'; |
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42 ctx.fillRect(0, 0, 100, 50); |
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43 |
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44 var g = ctx.createRadialGradient(230, 25, 100, 100, 25, 101); |
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45 g.addColorStop(0, '#f00'); |
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46 g.addColorStop(1, '#0f0'); |
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47 ctx.fillStyle = g; |
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48 ctx.fillRect(0, 0, 100, 50); |
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49 |
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50 isPixel(ctx, 1,1, 0,255,0,255, "1,1", "0,255,0,255", 0); |
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51 isPixel(ctx, 50,1, 0,255,0,255, "50,1", "0,255,0,255", 0); |
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52 isPixel(ctx, 98,1, 0,255,0,255, "98,1", "0,255,0,255", 0); |
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53 isPixel(ctx, 1,25, 0,255,0,255, "1,25", "0,255,0,255", 0); |
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54 isPixel(ctx, 50,25, 0,255,0,255, "50,25", "0,255,0,255", 0); |
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55 isPixel(ctx, 98,25, 0,255,0,255, "98,25", "0,255,0,255", 0); |
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56 isPixel(ctx, 1,48, 0,255,0,255, "1,48", "0,255,0,255", 0); |
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57 isPixel(ctx, 50,48, 0,255,0,255, "50,48", "0,255,0,255", 0); |
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58 isPixel(ctx, 98,48, 0,255,0,255, "98,48", "0,255,0,255", 0); |
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59 |
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60 SimpleTest.finish(); |
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61 |
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62 }); |
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63 </script> |
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64 |