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Diffstat (limited to 'testing/web-platform/tests/html/canvas/element/manual/drawing-images-to-the-canvas/drawimage_html_image.html')
| -rw-r--r-- | testing/web-platform/tests/html/canvas/element/manual/drawing-images-to-the-canvas/drawimage_html_image.html | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/element/manual/drawing-images-to-the-canvas/drawimage_html_image.html b/testing/web-platform/tests/html/canvas/element/manual/drawing-images-to-the-canvas/drawimage_html_image.html new file mode 100644 index 0000000000..59a7d64465 --- /dev/null +++ b/testing/web-platform/tests/html/canvas/element/manual/drawing-images-to-the-canvas/drawimage_html_image.html @@ -0,0 +1,268 @@ +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<canvas id="dest" height="100" width="100"></canvas> + +<script> +var sourceWidth = sourceHeight = 100; +var destCanvasWidth = destCanvasHeight = 100; +var redPixel = [255, 0, 0, 255]; +var lightPixel = [253, 140, 245, 255]; +var grayPixel = [41, 122, 115, 255]; +var transparentBlackPixel = [0, 0, 0, 0]; + +var destCanvas = document.getElementById('dest'); +var sourceImg = document.createElement('img'); +sourceImg.src = '/html/canvas/resources/2x2.png'; +sourceImg.width = sourceWidth; +sourceImg.height = sourceHeight; +var destCtx = destCanvas.getContext('2d'); +destCtx.imageSmoothingEnabled = false; + +function checkPixel(location, expected) { + var actual = destCtx.getImageData(location[0], location[1], 1, 1).data; + assert_array_equals(actual, expected); +} + +function PreparePixelTests(lightPixelCheck, grayPixelCheck, redCheck, testDescription) { + var pixelTests = []; + for (var i = 0; i < lightPixelCheck.length; i++) { + var message = testDescription + 'Pixel ' + lightPixelCheck[i][0] + ',' + lightPixelCheck[i][1] + ' should be light purple.'; + pixelTests.push([message, lightPixelCheck[i], lightPixel]); + } + for (var i = 0; i < grayPixelCheck.length; i++) { + var message = testDescription + 'Pixel ' + grayPixelCheck[i][0] + ',' + grayPixelCheck[i][1] + ' should be gray.'; + pixelTests.push([message, grayPixelCheck[i], grayPixel]); + } + for (var i = 0; i < redCheck.length; i++) { + var message = testDescription + 'Pixel ' + redCheck[i][0] + ',' + redCheck[i][1] + ' should be red.'; + pixelTests.push([message, redCheck[i], redPixel]); + } + pixelTests.push([testDescription + 'Pixel outside canvas should be transparent black.\n', [100, 100], transparentBlackPixel]); + return pixelTests; +} + +function drawCustomImageOnCanvas(sourceImage, sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription) { + destCtx.fillStyle = 'red'; + destCtx.fillRect(0, 0, destCanvasWidth, destCanvasHeight); + if (typeof sourceRect.x !== 'undefined') + destCtx.drawImage(sourceImage, sourceRect.x, sourceRect.y, sourceRect.w, sourceRect.h, + destRect.x, destRect.y, destRect.w, destRect.h); + else if (typeof destRect.w !== 'undefined') + destCtx.drawImage(sourceImage, destRect.x, destRect.y, destRect.w, destRect.h); + else + destCtx.drawImage(sourceImage, destRect.x, destRect.y); + var pixelTests = PreparePixelTests(lightPixelCheck, grayPixelCheck, redCheck, testDescription); + generate_tests(checkPixel, pixelTests); +} + +function drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription) { + drawCustomImageOnCanvas(sourceImg, sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +var testDescription; +var sourceRect = {}, destRect = {}; +var lightPixelCheck, grayPixelCheck, redCheck; + +// 2 arguments, the dest origin is 0,0 +// The source image will copied to the 0,0 position of the destination canvas +function runDrawImageTest_dX0_dY0() { + testDescription = 'Test scenario 1: dx = 0, dy = 0 --- '; + destRect = {x: 0, y: 0}; + lightPixelCheck = [[0,0], [0,99], [99,0], [99,99]]; + grayPixelCheck = []; + redCheck = []; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// 2 arguments, the dest origin is not 0,0 +// The source canvas will copied to the 25,25 position of the destination canvas +function runDrawImageTest_dX25_dY25() { + testDescription = 'Test scenario 2: dx = 25, dy = 25 --- '; + destRect = {x: 25, y: 25}; + lightPixelCheck = [[25,25], [25,99], [99,25], [99,99]]; + grayPixelCheck = []; + redCheck = [[0,0], [24,24], [0,25], [25,0], [0,99], [99,0]]; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// 4 arguments, the source origin is not 0,0, the dest size is provided +// The source canvas will copied to the 50, 50 position of the destination canvas and +// on an area of 50x50 pixels +function runDrawImageTest_dX50_dY50_dW50_dH50() { + testDescription = 'Test scenario 3: dx = 50, dy = 50, dw = 50, dh = 50 --- '; + destRect = {x: 50, y: 50, w: 50, h: 50}; + lightPixelCheck = [[50,50], [99,99]]; + grayPixelCheck = [[50,99], [99,50]]; + redCheck = [[0,0], [49,49], [0,50], [50,0], [0,99], [99,0]]; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// 4 arguments, the dest origin is not 0,0 and the dest size is provided but +// does not match the size of the source. The image will be distorted +// The source canvas will copied to the 50,50 position of the destination canvas +// and it will be shrunk to a and area of 16x16 +function runDrawImageTest_dX50_dY50_dW16_dH16() { + testDescription = 'Test scenario 4: dx = 50, dy = 50, dw = 16, dh = 16 --- '; + destRect = {x: 50, y: 50, w: 16, h: 16}; + lightPixelCheck = [[50,50], [65,65]]; + grayPixelCheck = [[50,65], [65,50]]; + redCheck = [[0,0], [49,49], [49,66], [66,49], [66,66], [99,99]]; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// The source canvas will copied to the 50,50 position of the destination canvas +// over an area of 64x32 pixels +// The copied image will be distorted along the x axis +function runDrawImageTest_dX50_dY50_dW64_dH32() { + testDescription = 'Test scenario 5: dx = 50, dy = 50, dw = 64, dh = 32 --- '; + destRect = {x: 50, y: 50, w: 64, h: 32}; + lightPixelCheck = [[50,50], [99,81]]; + grayPixelCheck = [[50,81], [99,50]]; + redCheck = [[0,0], [49,49], [49,82], [99,49], [99,82], [99,99]]; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// 8 arguments, both destination and source origins are 0, 0 +// An area of 32x32 pixels of the source image will be copied to +// an area of 32x32 pixels of the destination canvas +function runDrawImageTest_sX0_sY0_sW32_sH32_dX0_dY0_dW32_dH32() { + testDescription = 'Test scenario 6: sx = 0, sy = 0, sw = 32, sh = 32, dx = 0, dy = 0, dw = 32, dh = 32 --- '; + sourceRect = {x: 0, y: 0, w: 32, h: 32}; + destRect = {x: 0, y: 0, w: 32, h: 32}; + lightPixelCheck = [[0,0], [0,31], [31,0], [31,31]]; + grayPixelCheck = []; + redCheck = [[0,32], [32,0], [32,32], [99,99]]; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// 8 arguments the destination origin is not 0,0 +// An area of 32x32 pixels of the source image will be copied to +// an area of 32x32 pixels of the destination canvas in the position 32,32 +function runDrawImageTest_sX0_sY0_sW32_sH32_dX32_dY32_dW32_dH32() { + testDescription = 'Test scenario 7: sx = 0, sy = 0, sw = 32, sh = 32, dx = 32, dy = 32, dw = 32, dh = 32 --- '; + sourceRect = {x: 0, y: 0, w: 32, h: 32}; + destRect = {x: 32, y: 32, w: 32, h: 32}; + lightPixelCheck = [[32,32], [32,63], [63,32], [63,63]]; + grayPixelCheck = []; + redCheck = [[0,0], [31,31], [31,64], [64,31], [64,64], [99,99]]; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// The source rectangle overflows the source image +// The source area is clipped to fit the source image +// and the destination are is clipped in the same proportion +function runDrawImageTest_sX32_sY32_sW32_sH32_dX0_dY0_dW32_dH32() { + testDescription = 'Test scenario 8: sx = 32, sy = 32, sw = 32, sh = 32, dx = 0, dy = 0, dw = 32, dh = 32 --- '; + sourceRect = {x: 32, y: 32, w: 32, h: 32}; + destRect = {x: 0, y: 0, w: 32, h: 32}; + lightPixelCheck = [[0,0], [0,31], [31,0], [31,31]]; + grayPixelCheck = []; + redCheck = [[0,32], [32,0], [32,32], [99,99]]; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// The destination rectangle has negative width and height. When the source +// rectangle is outside the source image, the source rectangle must be clipped +// to the source image and the destination rectangle must be clipped in the same +// proportion. +function runDrawImageTest_sX0_sY0_sW32_sH32_dX32_dY32_dWm32_dHm32() { + testDescription = 'Test scenario 9: sx = 32, sy = 32, sw = 32, sh = 32, dx = 32, dy = 32, dw = -32, dh = -32 --- '; + sourceRect = {x: 32, y: 32, w: 32, h: 32}; + destRect = {x: 0, y: 0, w: 32, h: 32}; + lightPixelCheck = [[0,0], [0,31], [31,0], [31,31]]; + grayPixelCheck = []; + redCheck = [[0,32], [32,0], [32,32], [99,99]]; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// The destination rectangle is larger than the destination canvas. +// When the destination rectangle is outside the destination image (the scratch bitmap), +// the pixels that land outside the scratch bitmap are discarded, +// as if the destination was an infinite canvas +// whose rendering was clipped to the dimensions of the scratch bitmap. +function runDrawImageTest_sX0_sY0_sW512_sH512_dX0_dY0_dW256_dH256() { + testDescription = 'Test scenario 10: sx = 0, sy = 0, sw = 512, sh = 512, dx = 0, dy = 0, dw = 256, dh = 256 --- '; + sourceRect = {x: 0, y: 0, w: 512, h: 512}; + destRect = {x: 0, y: 0, w: 256, h: 256}; + lightPixelCheck = [[0,0], [0,99], [99,0], [99,99]]; + grayPixelCheck = []; + redCheck = []; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// The source rectangle is larger than the source canvas +// The source area is clipped to fit the source image +// and the destination area is clipped in the same proportion +function runDrawImageTest_sX0_sY0_sW2048_sH2048_dX0_dY0_dW800_dH800() { + testDescription = 'Test scenario 11: sx = 0, sy = 0, sw = 2048, sh = 2048, dx = 0, dy = 0, dw = 800, dh = 800 --- '; + sourceRect = {x: 0, y: 0, w: 2048, h: 2048}; + destRect = {x: 0, y: 0, w: 800, h: 800}; + lightPixelCheck = [[0,0], [0,99], [99,0], [99,99]]; + grayPixelCheck = []; + redCheck = []; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// Negative coordinates of the source rectangle +// The source area is clipped to fit the source image +// and the destination area is clipped in the same proportion +function runDrawImageTest_sXm20_sYm20_sW50_sH50_dX20_dY20_dW125_dH125() { + testDescription = 'Test scenario 12: sx = -20, sy = -20, sw = 50, sh = 50, dx = 20, dy = 20, dw = 125, dh = 125 --- '; + sourceRect = {x: -20, y: -20, w: 50, h: 50}; + destRect = {x: 20, y: 20, w: 125, h: 125}; + lightPixelCheck = [[70,70], [70,99], [99,70], [99,99]]; + grayPixelCheck = []; + redCheck = [[0,0], [0,99], [99,0], [69,69], [69, 99], [99,69]]; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// The source Image doesn't have a src url defined. +// No exception is thrown and nothing is drawn. +function runDrawImageTestImageWithuotSource() { + testDescription = 'Test scenario 13: draw an image element that does not have a source --- '; + var sourceImage = document.createElement('img'); + sourceRect = {x: 0, y: 0, w: 50, h: 50}; + destRect = {x: 0, y: 0, w: 100, h: 100}; + lightPixelCheck = []; + grayPixelCheck = []; + redCheck = [[0,0], [0,99], [99,0], [99,69]]; + drawCustomImageOnCanvas(sourceImage, sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + +// Clipping the source and down scaling to the destination +function runDrawImageTest_sX64_sY64_sW384_sH384_dX0_dY0_dW32_dH64() { + testDescription = 'Test scenario 14: sx = 64, sy = 64, sw = 384, sh = 384, dx = 0, dy = 0, dw = 32, dh = 64 --- '; + sourceRect = {x: 64, y: 64, w: 384, h: 384}; + destRect = {x: 0, y: 0, w: 32, h: 64}; + lightPixelCheck = [[0,0], [15,31], [17,33], [31,63]]; + grayPixelCheck = [[16,0], [31,31], [0, 33], [15,63]]; + redCheck = [[0,64], [32,0], [32,64], [99,99]]; + drawImageOnCanvas(sourceRect, destRect, lightPixelCheck, grayPixelCheck, redCheck, testDescription); +} + + +function runDrawImageTests() { + runDrawImageTest_dX0_dY0(); + runDrawImageTest_dX25_dY25(); + runDrawImageTest_dX50_dY50_dW50_dH50(); + runDrawImageTest_dX50_dY50_dW16_dH16(); + runDrawImageTest_dX50_dY50_dW64_dH32(); + runDrawImageTest_sX0_sY0_sW32_sH32_dX0_dY0_dW32_dH32(); + runDrawImageTest_sX0_sY0_sW32_sH32_dX32_dY32_dW32_dH32(); + runDrawImageTest_sX32_sY32_sW32_sH32_dX0_dY0_dW32_dH32(); + runDrawImageTest_sX0_sY0_sW32_sH32_dX32_dY32_dWm32_dHm32(); + runDrawImageTest_sX0_sY0_sW512_sH512_dX0_dY0_dW256_dH256(); + runDrawImageTest_sX0_sY0_sW2048_sH2048_dX0_dY0_dW800_dH800(); + runDrawImageTest_sXm20_sYm20_sW50_sH50_dX20_dY20_dW125_dH125(); + runDrawImageTestImageWithuotSource(); + runDrawImageTest_sX64_sY64_sW384_sH384_dX0_dY0_dW32_dH64(); +} + +async_test(t => { + window.onload = function() { + t.step(runDrawImageTests); + t.done(); + } +}, 'Draw 100x100 image to 100x100 canvas at 0,0.'); + +</script>
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