test_2d.composite.uncovered.fill.color.html (1797B)
1 <!DOCTYPE HTML> 2 <title>Canvas test: 2d.composite.uncovered.fill.source-out</title> 3 <!-- Testing: fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged. --> 4 <script src="/tests/SimpleTest/SimpleTest.js"></script> 5 <link rel="stylesheet" href="/tests/SimpleTest/test.css"> 6 <body> 7 <canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> 8 <script> 9 function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) { 10 var pixel = ctx.getImageData(x, y, 1, 1); 11 var pr = pixel.data[0], 12 pg = pixel.data[1], 13 pb = pixel.data[2], 14 pa = pixel.data[3]; 15 ok(r-d <= pr && pr <= r+d && 16 g-d <= pg && pg <= g+d && 17 b-d <= pb && pb <= b+d && 18 a-d <= pa && pa <= a+d, 19 "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d); 20 } 21 function todo_isPixel(ctx, x,y, r,g,b,a, pos, colour, d) { 22 var pixel = ctx.getImageData(x, y, 1, 1); 23 var pr = pixel.data[0], 24 pg = pixel.data[1], 25 pb = pixel.data[2], 26 pa = pixel.data[3]; 27 todo(r-d <= pr && pr <= r+d && 28 g-d <= pg && pg <= g+d && 29 b-d <= pb && pb <= b+d && 30 a-d <= pa && pa <= a+d, 31 "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d); 32 } 33 34 SimpleTest.waitForExplicitFinish(); 35 addLoadEvent(function () { 36 37 var canvas = document.getElementById('c'); 38 var ctx = canvas.getContext('2d'); 39 40 41 ctx.fillStyle = 'rgba(0, 255, 0, 0.5)'; 42 ctx.fillRect(0, 0, 100, 50); 43 ctx.globalCompositeOperation = 'color'; 44 ctx.fillStyle = 'rgba(0, 0, 255, 0.75)'; 45 ctx.translate(0, 25); 46 ctx.fillRect(0, 50, 100, 50); 47 isPixel(ctx, 50,25, 0,255,0,128, "50,25", "0,255,0,128", 5); 48 49 SimpleTest.finish(); 50 51 }); 52 </script>