include/effects/SkAlphaThresholdFilter.h - Issue 115633002: Add AlphaThreshold filter.

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Side by Side Diff: include/effects/SkAlphaThresholdFilter.h

Issue 115633002: Add AlphaThreshold filter. (Closed) Base URL: https://skia.googlesource.com/skia.git@master

Patch Set: Use proper coordinates Created 7 years ago

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	1 /*

	2 * Copyright 2013 The Android Open Source Project

	3 *

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

	5 * found in the LICENSE file.

	6 */
	bsalomon 2013/12/18 14:38:12 New files use this copyright notice: /* * Copyri New files use this copyright notice: /* * Copyright 2013 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. / Zachary Kuznia* 2013/12/19 01:28:40 Done. Show quoted text On 2013/12/18 14:38:12, bsalomon wrote: > New files use this copyright notice: > > /* > * Copyright 2013 Google Inc. > * > * Use of this source code is governed by a BSD-style license that can be > * found in the LICENSE file. > */ Done.
	7

	8

	9 #ifndef SkAlphaThresholdFilter_DEFINED

	10 #define SkAlphaThresholdFilter_DEFINED

	11

	12 #include "SkRegion.h"

	13 #include "SkImageFilter.h"

	14

	15 class SK_API SkAlphaThresholdFilter {

	16 public:

	17 /**

	18 * Creates an image filter that samples a region. If the sample is inside th e

	19 * region the alpha of the image is boosted up to a threshold value. If it i s

	20 * outside the region then the alpha is decreased to the threshold value.

	21 * The 0,0 point of the region corresponds to the upper left corner.
	bsalomon 2013/12/18 14:38:12 ...corresponds to the upper left corner of the src ...corresponds to the upper left corner of the src image. (?) Zachary Kuznia 2013/12/19 01:28:40 Done. Show quoted text On 2013/12/18 14:38:12, bsalomon wrote: > ...corresponds to the upper left corner of the src image. (?) Done.
	22 */

	23 static SkImageFilter* Create(const SkRegion& region, SkScalar innerThreshold , SkScalar outerThreshold);

	24 };

	25

	26 #endif

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« gm/imagealphathreshold.cpp ('K') | « gyp/public_headers.gypi ('k') | src/effects/SkAlphaThresholdFilter.cpp » ('j') | src/effects/SkAlphaThresholdFilter.cpp » ('J')