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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrGLExtensions_DEFINED | 8 #ifndef GrGLExtensions_DEFINED |
9 #define GrGLExtensions_DEFINED | 9 #define GrGLExtensions_DEFINED |
10 | 10 |
11 #include "GrGLInterface.h" | 11 #include "GrGLInterface.h" |
12 #include "SkString.h" | 12 #include "SkString.h" |
13 #include "SkTArray.h" | 13 #include "SkTArray.h" |
14 | 14 |
15 /** | 15 /** |
16 * This helper queries the current GL context for its extensions, remembers them
, and can be | 16 * This helper queries the current GL context for its extensions, remembers them
, and can be |
17 * queried. It supports both glGetString- and glGetStringi-style extension strin
g APIs and will | 17 * queried. It supports both glGetString- and glGetStringi-style extension strin
g APIs and will |
18 * use the latter if it is available. | 18 * use the latter if it is available. |
19 */ | 19 */ |
20 class GrGLExtensions { | 20 class GrGLExtensions { |
21 public: | 21 public: |
22 bool init(GrGLBinding binding, const GrGLInterface* iface) { | 22 bool init(GrGLBinding binding, const GrGLInterface* iface) { |
23 GrAssert(binding & iface->fBindingsExported); | 23 SkASSERT(binding & iface->fBindingsExported); |
24 return this->init(binding, iface->fGetString, iface->fGetStringi, iface-
>fGetIntegerv); | 24 return this->init(binding, iface->fGetString, iface->fGetStringi, iface-
>fGetIntegerv); |
25 } | 25 } |
26 /** | 26 /** |
27 * We sometimes need to use this class without having yet created a GrGLInte
rface. This version | 27 * We sometimes need to use this class without having yet created a GrGLInte
rface. This version |
28 * of init expects that getString is always non-NULL while getIntegerv and g
etStringi are non- | 28 * of init expects that getString is always non-NULL while getIntegerv and g
etStringi are non- |
29 * NULL if on desktop GL with version 3.0 or higher. Otherwise it will fail. | 29 * NULL if on desktop GL with version 3.0 or higher. Otherwise it will fail. |
30 */ | 30 */ |
31 bool init(GrGLBinding binding, | 31 bool init(GrGLBinding binding, |
32 GrGLGetStringProc getString, | 32 GrGLGetStringProc getString, |
33 GrGLGetStringiProc getStringi, | 33 GrGLGetStringiProc getStringi, |
34 GrGLGetIntegervProc getIntegerv); | 34 GrGLGetIntegervProc getIntegerv); |
35 | 35 |
36 /** | 36 /** |
37 * Queries whether an extension is present. This will fail if init() has not
been called. | 37 * Queries whether an extension is present. This will fail if init() has not
been called. |
38 */ | 38 */ |
39 bool has(const char*) const; | 39 bool has(const char*) const; |
40 | 40 |
41 void reset() { fStrings.reset(); } | 41 void reset() { fStrings.reset(); } |
42 | 42 |
43 void print(const char* sep = "\n") const; | 43 void print(const char* sep = "\n") const; |
44 | 44 |
45 private: | 45 private: |
46 SkTArray<SkString> fStrings; | 46 SkTArray<SkString> fStrings; |
47 }; | 47 }; |
48 | 48 |
49 #endif | 49 #endif |
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