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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QOPENGLFRAMEBUFFEROBJECT_P_H
#define QOPENGLFRAMEBUFFEROBJECT_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of the QLibrary class. This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//
#include <qopenglframebufferobject.h>
#include <private/qopenglcontext_p.h>
#include <private/qopenglextensions_p.h>
QT_BEGIN_NAMESPACE
class QOpenGLFramebufferObjectFormatPrivate
{
public:
QOpenGLFramebufferObjectFormatPrivate()
: ref(1),
samples(0),
attachment(QOpenGLFramebufferObject::NoAttachment),
target(GL_TEXTURE_2D),
mipmap(false)
{
#ifndef QT_OPENGL_ES_2
// There is nothing that says QOpenGLFramebufferObjectFormat needs a current
// context, so we need a fallback just to be safe, even though in pratice there
// will usually be a context current.
QOpenGLContext *ctx = QOpenGLContext::currentContext();
const bool isES = ctx ? ctx->isOpenGLES() : QOpenGLContext::openGLModuleType() != QOpenGLContext::LibGL;
internal_format = isES ? GL_RGBA : GL_RGBA8;
#else
internal_format = GL_RGBA;
#endif
}
QOpenGLFramebufferObjectFormatPrivate
(const QOpenGLFramebufferObjectFormatPrivate *other)
: ref(1),
samples(other->samples),
attachment(other->attachment),
target(other->target),
internal_format(other->internal_format),
mipmap(other->mipmap)
{
}
bool equals(const QOpenGLFramebufferObjectFormatPrivate *other)
{
return samples == other->samples &&
attachment == other->attachment &&
target == other->target &&
internal_format == other->internal_format &&
mipmap == other->mipmap;
}
QAtomicInt ref;
int samples;
QOpenGLFramebufferObject::Attachment attachment;
GLenum target;
GLenum internal_format;
uint mipmap : 1;
};
class QOpenGLFramebufferObjectPrivate
{
public:
QOpenGLFramebufferObjectPrivate() : fbo_guard(0), texture_guard(0), depth_buffer_guard(0)
, stencil_buffer_guard(0), color_buffer_guard(0)
, valid(false) {}
~QOpenGLFramebufferObjectPrivate() {}
void init(QOpenGLFramebufferObject *q, const QSize& sz,
QOpenGLFramebufferObject::Attachment attachment,
GLenum internal_format, GLenum texture_target,
GLint samples = 0, bool mipmap = false);
void initTexture(GLenum target, GLenum internal_format, const QSize &size, bool mipmap);
void initAttachments(QOpenGLContext *ctx, QOpenGLFramebufferObject::Attachment attachment);
bool checkFramebufferStatus(QOpenGLContext *ctx) const;
QOpenGLSharedResourceGuard *fbo_guard;
QOpenGLSharedResourceGuard *texture_guard;
QOpenGLSharedResourceGuard *depth_buffer_guard;
QOpenGLSharedResourceGuard *stencil_buffer_guard;
QOpenGLSharedResourceGuard *color_buffer_guard;
GLenum target;
QSize size;
QOpenGLFramebufferObjectFormat format;
uint valid : 1;
QOpenGLFramebufferObject::Attachment fbo_attachment;
QOpenGLExtensions funcs;
inline GLuint fbo() const { return fbo_guard ? fbo_guard->id() : 0; }
};
QT_END_NAMESPACE
#endif // QOPENGLFRAMEBUFFEROBJECT_P_H
|
