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

Issue 1228683002: rename GrShaderDataManager -> GrProcessorDataManager (Closed) Base URL: https://skia.googlesource.com/skia.git@grfixuptests
Patch Set: rebase onto origin/master Created 5 years, 5 months ago
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1 1
2 /* 2 /*
3 * Copyright 2006 The Android Open Source Project 3 * Copyright 2006 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 #ifndef SkXfermode_DEFINED 10 #ifndef SkXfermode_DEFINED
11 #define SkXfermode_DEFINED 11 #define SkXfermode_DEFINED
12 12
13 #include "SkFlattenable.h" 13 #include "SkFlattenable.h"
14 #include "SkColor.h" 14 #include "SkColor.h"
15 15
16 class GrFragmentProcessor; 16 class GrFragmentProcessor;
17 class GrShaderDataManager; 17 class GrProcessorDataManager;
18 class GrTexture; 18 class GrTexture;
19 class GrXPFactory; 19 class GrXPFactory;
20 class SkString; 20 class SkString;
21 21
22 /** \class SkXfermode 22 /** \class SkXfermode
23 * 23 *
24 * SkXfermode is the base class for objects that are called to implement custom 24 * SkXfermode is the base class for objects that are called to implement custom
25 * "transfer-modes" in the drawing pipeline. The static function Create(Modes) 25 * "transfer-modes" in the drawing pipeline. The static function Create(Modes)
26 * can be called to return an instance of any of the predefined subclasses as 26 * can be called to return an instance of any of the predefined subclasses as
27 * specified in the Modes enum. When an SkXfermode is assigned to an SkPaint, 27 * specified in the Modes enum. When an SkXfermode is assigned to an SkPaint,
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201 */ 201 */
202 static bool IsOpaque(const SkXfermode* xfer, SrcColorOpacity opacityType); 202 static bool IsOpaque(const SkXfermode* xfer, SrcColorOpacity opacityType);
203 203
204 /** Implemented by a subclass to support use as an image filter in the GPU b ackend. When used as 204 /** Implemented by a subclass to support use as an image filter in the GPU b ackend. When used as
205 an image filter the xfer mode blends the source color against a backgrou nd texture rather 205 an image filter the xfer mode blends the source color against a backgrou nd texture rather
206 than the destination. It is implemented as a fragment processor. This ca n be called with 206 than the destination. It is implemented as a fragment processor. This ca n be called with
207 both params set to NULL to query whether it would succeed. Otherwise, bo th params are 207 both params set to NULL to query whether it would succeed. Otherwise, bo th params are
208 required. Upon success the function returns true and the caller owns a r ef to the fragment 208 required. Upon success the function returns true and the caller owns a r ef to the fragment
209 parameter. Upon failure false is returned and the processor param is not written to. 209 parameter. Upon failure false is returned and the processor param is not written to.
210 */ 210 */
211 virtual bool asFragmentProcessor(GrFragmentProcessor**, GrShaderDataManager* , 211 virtual bool asFragmentProcessor(GrFragmentProcessor**, GrProcessorDataManag er*,
212 GrTexture* background) const; 212 GrTexture* background) const;
213 213
214 /** A subclass may implement this factory function to work with the GPU back end. It is legal 214 /** A subclass may implement this factory function to work with the GPU back end. It is legal
215 to call this with xpf NULL to simply test the return value. If xpf is no n-NULL then the 215 to call this with xpf NULL to simply test the return value. If xpf is no n-NULL then the
216 xfermode may optionally allocate a factory to return to the caller as *x pf. The caller 216 xfermode may optionally allocate a factory to return to the caller as *x pf. The caller
217 will install it and own a ref to it. Since the xfermode may or may not a ssign *xpf, the 217 will install it and own a ref to it. Since the xfermode may or may not a ssign *xpf, the
218 caller should set *xpf to NULL beforehand. XferProcessors cannot use a b ackground texture. 218 caller should set *xpf to NULL beforehand. XferProcessors cannot use a b ackground texture.
219 */ 219 */
220 virtual bool asXPFactory(GrXPFactory** xpf) const; 220 virtual bool asXPFactory(GrXPFactory** xpf) const;
221 221
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243 243
244 private: 244 private:
245 enum { 245 enum {
246 kModeCount = kLastMode + 1 246 kModeCount = kLastMode + 1
247 }; 247 };
248 248
249 typedef SkFlattenable INHERITED; 249 typedef SkFlattenable INHERITED;
250 }; 250 };
251 251
252 #endif 252 #endif
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