1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QOPENGLPROGRAMBINARYCACHE_P_H
#define QOPENGLPROGRAMBINARYCACHE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtGui/qtguiglobal.h>
#include <QtGui/qopenglshaderprogram.h>
#include <QtCore/qcache.h>
#include <QtCore/qmutex.h>
QT_BEGIN_NAMESPACE
class QOpenGLProgramBinaryCache
{
public:
struct ShaderDesc {
ShaderDesc() { }
ShaderDesc(QOpenGLShader::ShaderType type, const QByteArray &source = QByteArray())
: type(type), source(source)
{ }
QOpenGLShader::ShaderType type;
QByteArray source;
};
struct ProgramDesc {
QVector<ShaderDesc> shaders;
};
QOpenGLProgramBinaryCache();
bool load(const QByteArray &cacheKey, uint programId);
void save(const QByteArray &cacheKey, uint programId);
private:
QString cacheFileName(const QByteArray &cacheKey) const;
bool verifyHeader(const QByteArray &buf) const;
bool setProgramBinary(uint programId, uint blobFormat, const void *p, uint blobSize);
QString m_cacheDir;
bool m_cacheWritable;
struct MemCacheEntry {
MemCacheEntry(const void *p, int size, uint format)
: blob(reinterpret_cast<const char *>(p), size),
format(format)
{ }
QByteArray blob;
uint format;
};
QCache<QByteArray, MemCacheEntry> m_memCache;
#if defined(QT_OPENGL_ES_2)
void (QOPENGLF_APIENTRYP programBinaryOES)(GLuint program, GLenum binaryFormat, const GLvoid *binary, GLsizei length);
void (QOPENGLF_APIENTRYP getProgramBinaryOES)(GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, GLvoid *binary);
void initializeProgramBinaryOES(QOpenGLContext *context);
bool m_programBinaryOESInitialized = false;
#endif
QMutex m_mutex;
};
QT_END_NAMESPACE
#endif
|
