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Side by Side Diff: include/gpu/gl/GrGLInterface.h

Issue 23904003: Remove GrRefCnt.h in favor of SkRefCnt.h (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: rm GrRefCnt.h Created 7 years, 3 months ago
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1
2 /* 1 /*
3 * Copyright 2011 Google Inc. 2 * Copyright 2011 Google Inc.
4 * 3 *
5 * 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
6 * found in the LICENSE file. 5 * found in the LICENSE file.
7 */ 6 */
8 7
9
10 #ifndef GrGLInterface_DEFINED 8 #ifndef GrGLInterface_DEFINED
11 #define GrGLInterface_DEFINED 9 #define GrGLInterface_DEFINED
12 10
13 #include "GrGLFunctions.h" 11 #include "GrGLFunctions.h"
14 #include "GrRefCnt.h" 12 #include "SkRefCnt.h"
15 13
16 //////////////////////////////////////////////////////////////////////////////// 14 ////////////////////////////////////////////////////////////////////////////////
17 15
18 /** 16 /**
19 * Classifies GL contexts (currently as Desktop vs. ES2). This is a bitfield. 17 * Classifies GL contexts (currently as Desktop vs. ES2). This is a bitfield.
20 * A GrGLInterface (defined below) may support multiple bindings. 18 * A GrGLInterface (defined below) may support multiple bindings.
21 */ 19 */
22 enum GrGLBinding { 20 enum GrGLBinding {
23 kNone_GrGLBinding = 0x0, 21 kNone_GrGLBinding = 0x0,
24 22
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103 * GrContext uses the following interface to make all calls into OpenGL. When a 101 * GrContext uses the following interface to make all calls into OpenGL. When a
104 * GrContext is created it is given a GrGLInterface. The interface's function 102 * GrContext is created it is given a GrGLInterface. The interface's function
105 * pointers must be valid for the OpenGL context associated with the GrContext. 103 * pointers must be valid for the OpenGL context associated with the GrContext.
106 * On some platforms, such as Windows, function pointers for OpenGL extensions 104 * On some platforms, such as Windows, function pointers for OpenGL extensions
107 * may vary between OpenGL contexts. So the caller must be careful to use a 105 * may vary between OpenGL contexts. So the caller must be careful to use a
108 * GrGLInterface initialized for the correct context. All functions that should 106 * GrGLInterface initialized for the correct context. All functions that should
109 * be available based on the OpenGL's version and extension string must be 107 * be available based on the OpenGL's version and extension string must be
110 * non-NULL or GrContext creation will fail. This can be tested with the 108 * non-NULL or GrContext creation will fail. This can be tested with the
111 * validate() method when the OpenGL context has been made current. 109 * validate() method when the OpenGL context has been made current.
112 */ 110 */
113 struct SK_API GrGLInterface : public GrRefCnt { 111 struct SK_API GrGLInterface : public SkRefCnt {
114 private: 112 private:
115 // simple wrapper class that exists only to initialize a pointer to NULL 113 // simple wrapper class that exists only to initialize a pointer to NULL
116 template <typename FNPTR_TYPE> class GLPtr { 114 template <typename FNPTR_TYPE> class GLPtr {
117 public: 115 public:
118 GLPtr() : fPtr(NULL) {} 116 GLPtr() : fPtr(NULL) {}
119 GLPtr operator =(FNPTR_TYPE ptr) { fPtr = ptr; return *this; } 117 GLPtr operator =(FNPTR_TYPE ptr) { fPtr = ptr; return *this; }
120 operator FNPTR_TYPE() const { return fPtr; } 118 operator FNPTR_TYPE() const { return fPtr; }
121 private: 119 private:
122 FNPTR_TYPE fPtr; 120 FNPTR_TYPE fPtr;
123 }; 121 };
124 122
125 typedef GrRefCnt INHERITED; 123 typedef SkRefCnt INHERITED;
126 124
127 public: 125 public:
128 SK_DECLARE_INST_COUNT(GrGLInterface) 126 SK_DECLARE_INST_COUNT(GrGLInterface)
129 127
130 GrGLInterface(); 128 GrGLInterface();
131 129
132 // Validates that the GrGLInterface supports a binding. This means that 130 // Validates that the GrGLInterface supports a binding. This means that
133 // the GrGLinterface advertises the binding in fBindingsExported and all 131 // the GrGLinterface advertises the binding in fBindingsExported and all
134 // the necessary function pointers have been initialized. The interface is 132 // the necessary function pointers have been initialized. The interface is
135 // validated for the current OpenGL context. 133 // validated for the current OpenGL context.
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353 351
354 // Per-GL func callback 352 // Per-GL func callback
355 #if GR_GL_PER_GL_FUNC_CALLBACK 353 #if GR_GL_PER_GL_FUNC_CALLBACK
356 GrGLInterfaceCallbackProc fCallback; 354 GrGLInterfaceCallbackProc fCallback;
357 GrGLInterfaceCallbackData fCallbackData; 355 GrGLInterfaceCallbackData fCallbackData;
358 #endif 356 #endif
359 357
360 }; 358 };
361 359
362 #endif 360 #endif
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