| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../resources/js-test-pre.js"></script> |
| </head> |
| <body> |
| <script> |
| description("Test that pixel access functions work with non-SRGB color spaces."); |
| |
| let canvasDisplayP3 = document.createElement("canvas"); |
| let contextDisplayP3 = canvasDisplayP3.getContext("2d", { colorSpace: "display-p3" }); |
| |
| let canvasSRGB = document.createElement("canvas"); |
| let contextSRGB = canvasSRGB.getContext("2d", { colorSpace: "srgb" }); |
| |
| const imageDataCreatedFromDisplayP3Canvas = contextDisplayP3.createImageData(50, 50); |
| shouldBe("imageDataCreatedFromDisplayP3Canvas.colorSpace", `"display-p3"`); |
| |
| const imageDataCreatedFromDisplayP3CanvasOverridingColorSpaceSRGB = contextDisplayP3.createImageData(50, 50, { colorSpace: "srgb" }); |
| shouldBe("imageDataCreatedFromDisplayP3CanvasOverridingColorSpaceSRGB.colorSpace", `"srgb"`); |
| |
| const imageDataCreatedFromDisplayP3CanvasOverridingColorSpaceDisplayP3 = contextDisplayP3.createImageData(50, 50, { colorSpace: "display-p3" }); |
| shouldBe("imageDataCreatedFromDisplayP3CanvasOverridingColorSpaceDisplayP3.colorSpace", `"display-p3"`); |
| |
| const imageDataCreatedFromSRGBCanvas = contextSRGB.createImageData(50, 50); |
| shouldBe("imageDataCreatedFromSRGBCanvas.colorSpace", `"srgb"`); |
| |
| const imageDataCreatedFromSRGBCanvasOverridingColorSpaceSRGB = contextSRGB.createImageData(50, 50, { colorSpace: "srgb" }); |
| shouldBe("imageDataCreatedFromSRGBCanvasOverridingColorSpaceSRGB.colorSpace", `"srgb"`); |
| |
| const imageDataCreatedFromSRGBCanvasOverridingColorSpaceDisplayP3 = contextSRGB.createImageData(50, 50, { colorSpace: "display-p3" }); |
| shouldBe("imageDataCreatedFromSRGBCanvasOverridingColorSpaceDisplayP3.colorSpace", `"display-p3"`); |
| |
| const imageDataCreatedFromImageDataConstructor = new ImageData(50, 50, { colorSpace: "srgb" }); |
| shouldBe("imageDataCreatedFromImageDataConstructor.colorSpace", `"srgb"`); |
| |
| const imageDataCreatedFromImageDataConstructorSettingColorSpaceToSRGB = new ImageData(50, 50, { colorSpace: "srgb" }); |
| shouldBe("imageDataCreatedFromImageDataConstructorSettingColorSpaceToSRGB.colorSpace", `"srgb"`); |
| |
| const imageDataCreatedFromImageDataConstructorSettingColorSpaceToDisplayP3 = new ImageData(50, 50, { colorSpace: "display-p3" }); |
| shouldBe("imageDataCreatedFromImageDataConstructorSettingColorSpaceToDisplayP3.colorSpace", `"display-p3"`); |
| |
| const imageDataCreatedFromImageDataConstructorPassingBuffer = new ImageData(new Uint8ClampedArray(400), 10, 10, { colorSpace: "srgb" }); |
| shouldBe("imageDataCreatedFromImageDataConstructorPassingBuffer.colorSpace", `"srgb"`); |
| |
| const imageDataCreatedFromImageDataConstructorPassingBufferSettingColorSpaceToSRGB = new ImageData(new Uint8ClampedArray(400), 10, 10, { colorSpace: "srgb" }); |
| shouldBe("imageDataCreatedFromImageDataConstructorPassingBufferSettingColorSpaceToSRGB.colorSpace", `"srgb"`); |
| |
| const imageDataCreatedFromImageDataConstructorPassingBufferSettingColorSpaceToDisplayP3 = new ImageData(new Uint8ClampedArray(400), 10, 10, { colorSpace: "display-p3" }); |
| shouldBe("imageDataCreatedFromImageDataConstructorPassingBufferSettingColorSpaceToDisplayP3.colorSpace", `"display-p3"`); |
| |
| var data = { }; |
| |
| // NOTE: |
| // color(srgb 0 1 0) converted to display-p3 is color(display-p3 0.4584 0.98526 0.29829) or [117, 251, 76, 255] in byte form. |
| |
| debug(""); |
| debug("Testing a display-p3 canvas with color(display-p3 0 1 0) drawn into it"); |
| debug(""); |
| |
| contextDisplayP3.fillStyle = "color(display-p3 0 1 0)"; |
| contextDisplayP3.fillRect(0, 0, 50, 50); |
| |
| // No specified color space will default to the canvas' color space, in this case, display-p3 |
| debug("Test getImageData with no specified color space, on a display-p3 canvas (canvas has color(display-p3 0 1 0) drawn in it)"); |
| data = contextDisplayP3.getImageData(0, 0, 1, 1); |
| shouldBe("data.colorSpace", `"display-p3"`) |
| shouldBe("data.data[0]", "0"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug("Test getImageData with srgb specified, on a display-p3 canvas (canvas has color(display-p3 0 1 0) drawn in it)"); |
| // NOTE: color(display-p3 0 1 0) is outside the range of sRGB, so it clipped to 255. |
| data = contextDisplayP3.getImageData(0, 0, 1, 1, { colorSpace: "srgb" }); |
| shouldBe("data.colorSpace", `"srgb"`) |
| shouldBe("data.data[0]", "0"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug("Test getImageData with display-p3 specified, on a display-p3 canvas (canvas has color(display-p3 0 1 0) drawn in it)"); |
| data = contextDisplayP3.getImageData(0, 0, 1, 1, { colorSpace: "display-p3" }); |
| shouldBe("data.colorSpace", `"display-p3"`) |
| shouldBe("data.data[0]", "0"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug(""); |
| debug("Testing a display-p3 canvas with color(srgb 0 1 0) drawn into it"); |
| debug(""); |
| |
| contextDisplayP3.fillStyle = "color(srgb 0 1 0)"; |
| contextDisplayP3.fillRect(0, 0, 50, 50); |
| |
| // No specified color space will default to the canvas' color space, in this case, display-p3 |
| debug("Test getImageData with no specified color space, on a display-p3 canvas (canvas has color(srgb 0 1 0) drawn in it)"); |
| data = contextDisplayP3.getImageData(0, 0, 1, 1); |
| shouldBe("data.colorSpace", `"display-p3"`) |
| shouldBe("data.data[0]", "117"); |
| shouldBe("data.data[1]", "251"); |
| shouldBe("data.data[2]", "76"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug("Test getImageData with srgb specified, on a display-p3 canvas (canvas has color(srgb 0 1 0) drawn in it)"); |
| data = contextDisplayP3.getImageData(0, 0, 1, 1, { colorSpace: "srgb" }); |
| shouldBe("data.colorSpace", `"srgb"`) |
| // NOTE: This 3 is odd, but due to lack of precision in 8-bit round-tripping. |
| shouldBe("data.data[0]", "3"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug("Test getImageData with display-p3 specified, on a display-p3 canvas (canvas has color(srgb 0 1 0) drawn in it)"); |
| data = contextDisplayP3.getImageData(0, 0, 1, 1, { colorSpace: "display-p3" }); |
| shouldBe("data.colorSpace", `"display-p3"`) |
| shouldBe("data.data[0]", "117"); |
| shouldBe("data.data[1]", "251"); |
| shouldBe("data.data[2]", "76"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug(""); |
| debug("Testing a srgb canvas with color(display-p3 0 1 0) drawn into it"); |
| debug(""); |
| |
| contextSRGB.fillStyle = "color(display-p3 0 1 0)"; |
| contextSRGB.fillRect(0, 0, 50, 50); |
| |
| // No specified color space will default to the canvas' color space, in this case, srgb |
| debug("Test getImageData with no specified color space, on a srgb canvas (canvas has color(display-p3 0 1 0) drawn in it)"); |
| data = contextSRGB.getImageData(0, 0, 1, 1); |
| shouldBe("data.colorSpace", `"srgb"`) |
| shouldBe("data.data[0]", "0"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug("Test getImageData with srgb specified, on a srgb canvas (canvas has color(display-p3 0 1 0) drawn in it)"); |
| data = contextSRGB.getImageData(0, 0, 1, 1, { colorSpace: "srgb" }); |
| shouldBe("data.colorSpace", `"srgb"`) |
| shouldBe("data.data[0]", "0"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug("Test getImageData with display-p3 specified, on a srgb canvas (canvas has color(display-p3 0 1 0) drawn in it)"); |
| data = contextSRGB.getImageData(0, 0, 1, 1, { colorSpace: "display-p3" }); |
| shouldBe("data.colorSpace", `"display-p3"`) |
| shouldBe("data.data[0]", "117"); |
| shouldBe("data.data[1]", "251"); |
| shouldBe("data.data[2]", "76"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug(""); |
| debug("Testing a srgb canvas with color(srgb-p3 0 1 0) drawn into it"); |
| debug(""); |
| |
| contextSRGB.fillStyle = "color(srgb 0 1 0)"; |
| contextSRGB.fillRect(0, 0, 50, 50); |
| |
| // No specified color space will default to the canvas' color space, in this case, srgb |
| debug("Test getImageData with no specified color space, on a srgb canvas (canvas has color(srgb 0 1 0) drawn in it)"); |
| data = contextSRGB.getImageData(0, 0, 1, 1); |
| shouldBe("data.colorSpace", `"srgb"`) |
| shouldBe("data.data[0]", "0"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug("Test getImageData with srgb specified, on a srgb canvas (canvas has color(srgb 0 1 0) drawn in it)"); |
| data = contextSRGB.getImageData(0, 0, 1, 1, { colorSpace: "srgb" }); |
| shouldBe("data.colorSpace", `"srgb"`) |
| shouldBe("data.data[0]", "0"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug("Test getImageData with display-p3 specified, on a srgb canvas (canvas has color(srgb 0 1 0) drawn in it)"); |
| data = contextSRGB.getImageData(0, 0, 1, 1, { colorSpace: "display-p3" }); |
| shouldBe("data.colorSpace", `"display-p3"`) |
| shouldBe("data.data[0]", "117"); |
| shouldBe("data.data[1]", "251"); |
| shouldBe("data.data[2]", "76"); |
| shouldBe("data.data[3]", "255"); |
| |
| |
| debug(""); |
| |
| |
| const imageDataDisplayP3ToPut = new ImageData(1, 1, { colorSpace: "display-p3" }); |
| imageDataDisplayP3ToPut.data[0] = 0; |
| imageDataDisplayP3ToPut.data[1] = 255; |
| imageDataDisplayP3ToPut.data[2] = 0; |
| imageDataDisplayP3ToPut.data[3] = 255; |
| |
| const imageDataSRGBToPut = new ImageData(1, 1, { colorSpace: "srgb" }); |
| imageDataSRGBToPut.data[0] = 0; |
| imageDataSRGBToPut.data[1] = 255; |
| imageDataSRGBToPut.data[2] = 0; |
| imageDataSRGBToPut.data[3] = 255; |
| |
| |
| debug(""); |
| debug("Testing a display-p3 canvas with display-p3 ImageData drawn into it"); |
| debug(""); |
| |
| contextDisplayP3.putImageData(imageDataDisplayP3ToPut, 0, 0); |
| |
| data = contextDisplayP3.getImageData(0, 0, 1, 1, { colorSpace: "srgb" }); |
| shouldBe("data.colorSpace", `"srgb"`) |
| shouldBe("data.data[0]", "0"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| data = contextDisplayP3.getImageData(0, 0, 1, 1, { colorSpace: "display-p3" }); |
| shouldBe("data.colorSpace", `"display-p3"`) |
| shouldBe("data.data[0]", "0"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug(""); |
| debug("Testing a display-p3 canvas with srgb ImageData drawn into it"); |
| debug(""); |
| |
| contextDisplayP3.putImageData(imageDataSRGBToPut, 0, 0); |
| |
| data = contextDisplayP3.getImageData(0, 0, 1, 1, { colorSpace: "srgb" }); |
| shouldBe("data.colorSpace", `"srgb"`) |
| // NOTE: This 3 is odd, but due to lack of precision in 8-bit round-tripping. |
| shouldBe("data.data[0]", "3"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| data = contextDisplayP3.getImageData(0, 0, 1, 1, { colorSpace: "display-p3" }); |
| shouldBe("data.colorSpace", `"display-p3"`) |
| shouldBe("data.data[0]", "117"); |
| shouldBe("data.data[1]", "251"); |
| shouldBe("data.data[2]", "76"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug(""); |
| debug("Testing a srgb canvas with display-p3 ImageData drawn into it"); |
| debug(""); |
| |
| contextSRGB.putImageData(imageDataDisplayP3ToPut, 0, 0); |
| |
| data = contextSRGB.getImageData(0, 0, 1, 1, { colorSpace: "srgb" }); |
| shouldBe("data.colorSpace", `"srgb"`) |
| shouldBe("data.data[0]", "0"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| data = contextSRGB.getImageData(0, 0, 1, 1, { colorSpace: "display-p3" }); |
| shouldBe("data.colorSpace", `"display-p3"`) |
| shouldBe("data.data[0]", "117"); |
| shouldBe("data.data[1]", "251"); |
| shouldBe("data.data[2]", "76"); |
| shouldBe("data.data[3]", "255"); |
| |
| |
| debug(""); |
| debug("Testing a srgb canvas with srgb ImageData drawn into it"); |
| debug(""); |
| |
| contextSRGB.putImageData(imageDataSRGBToPut, 0, 0); |
| |
| data = contextSRGB.getImageData(0, 0, 1, 1, { colorSpace: "srgb" }); |
| shouldBe("data.colorSpace", `"srgb"`) |
| shouldBe("data.data[0]", "0"); |
| shouldBe("data.data[1]", "255"); |
| shouldBe("data.data[2]", "0"); |
| shouldBe("data.data[3]", "255"); |
| |
| data = contextSRGB.getImageData(0, 0, 1, 1, { colorSpace: "display-p3" }); |
| shouldBe("data.colorSpace", `"display-p3"`) |
| shouldBe("data.data[0]", "117"); |
| shouldBe("data.data[1]", "251"); |
| shouldBe("data.data[2]", "76"); |
| shouldBe("data.data[3]", "255"); |
| |
| debug(""); |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |