| <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> |
| <html> |
| <head> |
| <script src="../../resources/js-test-pre.js"></script> |
| </head> |
| <body> |
| <script> |
| description("Test that the rendering context state is intact after a call to putImageData()"); |
| var ctx = document.createElement('canvas').getContext('2d'); |
| |
| ctx.fillStyle = 'red'; |
| ctx.fillRect(0, 0, 1, 1); |
| |
| debug("Checking initial state for sanity"); |
| var imageData = ctx.getImageData(0, 0, 2, 1); |
| var imgdata = imageData.data; |
| shouldBe("ctx.fillStyle", "'#ff0000'"); |
| shouldBe("imgdata[0]", "255"); |
| shouldBe("imgdata[1]", "0"); |
| shouldBe("imgdata[2]", "0"); |
| shouldBe("imgdata[3]", "255"); |
| shouldBe("imgdata[4]", "0"); |
| shouldBe("imgdata[5]", "0"); |
| shouldBe("imgdata[6]", "0"); |
| shouldBe("imgdata[7]", "0"); |
| |
| debug("Calling putImageData()"); |
| ctx.putImageData(imageData, 1, 1); |
| imageData = ctx.getImageData(1, 1, 1, 1); |
| imgdata = imageData.data; |
| shouldBe("imgdata[0]", "255"); |
| shouldBe("imgdata[1]", "0"); |
| shouldBe("imgdata[2]", "0"); |
| shouldBe("imgdata[3]", "255"); |
| |
| debug("Checking if state is intact"); |
| shouldBe("ctx.fillStyle", "'#ff0000'"); |
| |
| ctx.fillRect(2, 2, 1, 1); |
| imageData = ctx.getImageData(2, 2, 1, 1); |
| imgdata = imageData.data; |
| shouldBe("imgdata[0]", "255"); |
| shouldBe("imgdata[1]", "0"); |
| shouldBe("imgdata[2]", "0"); |
| shouldBe("imgdata[3]", "255"); |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
