Source/core/rendering/RenderHTMLCanvas.cpp - Issue 336693005: Add image-rendering: pixelated.

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Issue 336693005: Add image-rendering: pixelated. (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Created 6 years, 6 months ago

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1 /*	1 /*

2 * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.	2 * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.

3 *	3 *

4 * Redistribution and use in source and binary forms, with or without	4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions	5 * modification, are permitted provided that the following conditions

6 * are met:	6 * are met:

7 * 1. Redistributions of source code must retain the above copyright	7 * 1. Redistributions of source code must retain the above copyright

8 * notice, this list of conditions and the following disclaimer.	8 * notice, this list of conditions and the following disclaimer.

9 * 2. Redistributions in binary form must reproduce the above copyright	9 * 2. Redistributions in binary form must reproduce the above copyright

10 * notice, this list of conditions and the following disclaimer in the	10 * notice, this list of conditions and the following disclaimer in the

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60	60

61 bool clip = !contentRect.contains(paintRect);	61 bool clip = !contentRect.contains(paintRect);

62 if (clip) {	62 if (clip) {

63 // Not allowed to overflow the content box.	63 // Not allowed to overflow the content box.

64 paintInfo.context->save();	64 paintInfo.context->save();

65 paintInfo.context->clip(pixelSnappedIntRect(contentRect));	65 paintInfo.context->clip(pixelSnappedIntRect(contentRect));

66 }	66 }

67	67

68 // FIXME: InterpolationNone should be used if ImageRenderingOptimizeContrast is set.	68 // FIXME: InterpolationNone should be used if ImageRenderingOptimizeContrast is set.

69 // See bug for more details: crbug.com/353716.	69 // See bug for more details: crbug.com/353716.

70 InterpolationQuality interpolationQuality = style()->imageRendering() == Ima geRenderingOptimizeContrast ? InterpolationLow : CanvasDefaultInterpolationQuali ty;	70 InterpolationQuality interpolationQuality;

	71 switch (style()->imageRendering()) {

	72 case ImageRenderingOptimizeContrast:

	73 interpolationQuality = InterpolationLow;

	74 break;

	75 case ImageRenderingPixelated:

	76 interpolationQuality = InterpolationNone;

	77 break;

	78 default:

	79 interpolationQuality = CanvasDefaultInterpolationQuality;

	80 }

	81

71 InterpolationQuality previousInterpolationQuality = context->imageInterpolat ionQuality();	82 InterpolationQuality previousInterpolationQuality = context->imageInterpolat ionQuality();

72 context->setImageInterpolationQuality(interpolationQuality);	83 context->setImageInterpolationQuality(interpolationQuality);

73 toHTMLCanvasElement(node())->paint(context, paintRect);	84 toHTMLCanvasElement(node())->paint(context, paintRect);

74 context->setImageInterpolationQuality(previousInterpolationQuality);	85 context->setImageInterpolationQuality(previousInterpolationQuality);

75	86

76 if (clip)	87 if (clip)

77 context->restore();	88 context->restore();

78 }	89 }

79	90

80 void RenderHTMLCanvas::canvasSizeChanged()	91 void RenderHTMLCanvas::canvasSizeChanged()

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109 return CompositingReasonNone;	120 return CompositingReasonNone;

110	121

111 HTMLCanvasElement* canvas = toHTMLCanvasElement(node());	122 HTMLCanvasElement* canvas = toHTMLCanvasElement(node());

112 if (canvas->renderingContext() && canvas->renderingContext()->isAccelerated( ))	123 if (canvas->renderingContext() && canvas->renderingContext()->isAccelerated( ))

113 return CompositingReasonCanvas;	124 return CompositingReasonCanvas;

114	125

115 return CompositingReasonNone;	126 return CompositingReasonNone;

116 }	127 }

117	128

118 } // namespace WebCore	129 } // namespace WebCore

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