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39
40#ifndef QOPENGLQUERYHELPER_P_H
41#define QOPENGLQUERYHELPER_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtGui/private/qtguiglobal_p.h>
55
56#if !defined(QT_OPENGL_ES_2)
57
58#include <QtGui/QOpenGLContext>
59
60QT_BEGIN_NAMESPACE
61
62// Helper class used by QOpenGLTimerQuery and later will be used by
63// QOpenGLOcclusionQuery
64class QOpenGLQueryHelper
65{
66public:
67 QOpenGLQueryHelper(QOpenGLContext *context)
68 : GetQueryObjectuiv(nullptr),
69 GetQueryObjectiv(nullptr),
70 GetQueryiv(nullptr),
71 EndQuery(nullptr),
72 BeginQuery(nullptr),
73 IsQuery(nullptr),
74 DeleteQueries(nullptr),
75 GenQueries(nullptr),
76 GetInteger64v(nullptr),
77 GetQueryObjectui64v(nullptr),
78 GetQueryObjecti64v(nullptr),
79 QueryCounter(nullptr)
80 {
81 Q_ASSERT(context);
82
83 // Core in OpenGL >=1.5
84 GetQueryObjectuiv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLuint *)>(context->getProcAddress("glGetQueryObjectuiv"));
85 GetQueryObjectiv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint *)>(context->getProcAddress("glGetQueryObjectiv"));
86 GetQueryiv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , GLint *)>(context->getProcAddress("glGetQueryiv"));
87 EndQuery = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum )>(context->getProcAddress("glEndQuery"));
88 BeginQuery = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLuint )>(context->getProcAddress("glBeginQuery"));
89 IsQuery = reinterpret_cast<GLboolean (QOPENGLF_APIENTRYP)(GLuint )>(context->getProcAddress("glIsQuery"));
90 DeleteQueries = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLsizei , const GLuint *)>(context->getProcAddress("glDeleteQueries"));
91 GenQueries = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLsizei , GLuint *)>(context->getProcAddress("glGenQueries"));
92
93 // Core in OpenGL >=3.2
94 GetInteger64v = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint64 *)>(context->getProcAddress("glGetInteger64v"));
95
96 // Core in OpenGL >=3.3 / ARB_timer_query
97 GetQueryObjectui64v = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLuint64 *)>(context->getProcAddress("glGetQueryObjectui64v"));
98 GetQueryObjecti64v = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint64 *)>(context->getProcAddress("glGetQueryObjecti64v"));
99 QueryCounter = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum )>(context->getProcAddress("glQueryCounter"));
100 }
101
102 inline void glGetQueryObjectuiv(GLuint id, GLenum pname, GLuint *params)
103 {
104 GetQueryObjectuiv(id, pname, params);
105 }
106
107 inline void glGetQueryObjectiv(GLuint id, GLenum pname, GLint *params)
108 {
109 GetQueryObjectiv(id, pname, params);
110 }
111
112 inline void glGetQueryiv(GLenum target, GLenum pname, GLint *params)
113 {
114 GetQueryiv(target, pname, params);
115 }
116
117 inline void glEndQuery(GLenum target)
118 {
119 EndQuery(target);
120 }
121
122 inline void glBeginQuery(GLenum target, GLuint id)
123 {
124 BeginQuery(target, id);
125 }
126
127 inline GLboolean glIsQuery(GLuint id)
128 {
129 return IsQuery(id);
130 }
131
132 inline void glDeleteQueries(GLsizei n, const GLuint *ids)
133 {
134 DeleteQueries(n, ids);
135 }
136
137 inline void glGenQueries(GLsizei n, GLuint *ids)
138 {
139 GenQueries(n, ids);
140 }
141
142 inline void glGetInteger64v(GLenum pname, GLint64 *params)
143 {
144 GetInteger64v(pname, params);
145 }
146
147 inline void glGetQueryObjectui64v(GLuint id, GLenum pname, GLuint64 *params)
148 {
149 GetQueryObjectui64v(id, pname, params);
150 }
151
152 inline void glGetQueryObjecti64v(GLuint id, GLenum pname, GLint64 *params)
153 {
154 GetQueryObjecti64v(id, pname, params);
155 }
156
157 inline void glQueryCounter(GLuint id, GLenum target)
158 {
159 QueryCounter(id, target);
160 }
161
162private:
163 // Core in OpenGL >=1.5
164 void (QOPENGLF_APIENTRYP GetQueryObjectuiv)(GLuint id, GLenum pname, GLuint *params);
165 void (QOPENGLF_APIENTRYP GetQueryObjectiv)(GLuint id, GLenum pname, GLint *params);
166 void (QOPENGLF_APIENTRYP GetQueryiv)(GLenum target, GLenum pname, GLint *params);
167 void (QOPENGLF_APIENTRYP EndQuery)(GLenum target);
168 void (QOPENGLF_APIENTRYP BeginQuery)(GLenum target, GLuint id);
169 GLboolean (QOPENGLF_APIENTRYP IsQuery)(GLuint id);
170 void (QOPENGLF_APIENTRYP DeleteQueries)(GLsizei n, const GLuint *ids);
171 void (QOPENGLF_APIENTRYP GenQueries)(GLsizei n, GLuint *ids);
172
173 // Core in OpenGL >=3.2
174 void (QOPENGLF_APIENTRYP GetInteger64v)(GLenum pname, GLint64 *params);
175
176 // Core in OpenGL >=3.3 and provided by ARB_timer_query
177 void (QOPENGLF_APIENTRYP GetQueryObjectui64v)(GLuint id, GLenum pname, GLuint64 *params);
178 void (QOPENGLF_APIENTRYP GetQueryObjecti64v)(GLuint id, GLenum pname, GLint64 *params);
179 void (QOPENGLF_APIENTRYP QueryCounter)(GLuint id, GLenum target);
180};
181
182QT_END_NAMESPACE
183
184#endif
185
186#endif // QOPENGLQUERYHELPER_P_H
187