include/core/SkUnPreMultiply.h - Issue 130303005: Factor out UnPreMultiplyPreservingByteOrder

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Side by Side Diff: include/core/SkUnPreMultiply.h

Issue 130303005: Factor out UnPreMultiplyPreservingByteOrder (Closed) Base URL: https://skia.googlesource.com/skia.git@dm-r

Patch Set: Created 6 years, 11 months ago

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1	1

2 /*	2 /*

3 * Copyright 2008 The Android Open Source Project	3 * Copyright 2008 The Android Open Source Project

4 *	4 *

5 * Use of this source code is governed by a BSD-style license that can be	5 * Use of this source code is governed by a BSD-style license that can be

6 * found in the LICENSE file.	6 * found in the LICENSE file.

7 */	7 */

8	8

9	9

10	10

(...skipping 31 matching lines...) Expand 10 before \| Expand all \| Expand 10 after Loading...
42 // now red is unpremultiplied	42 // now red is unpremultiplied

43 }	43 }

44 */	44 */

45 static U8CPU ApplyScale(Scale scale, U8CPU component) {	45 static U8CPU ApplyScale(Scale scale, U8CPU component) {

46 SkASSERT(component <= 255);	46 SkASSERT(component <= 255);

47 return (scale * component + (1 << 23)) >> 24;	47 return (scale * component + (1 << 23)) >> 24;

48 }	48 }

49	49

50 static SkColor PMColorToColor(SkPMColor c);	50 static SkColor PMColorToColor(SkPMColor c);

51	51

	52 static uint32_t UnPreMultiplyPreservingByteOrder(SkPMColor c);

	53

52 private:	54 private:

53 static const uint32_t gTable[256];	55 static const uint32_t gTable[256];

54 };	56 };

55	57

56 #endif	58 #endif

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