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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QOPENGL_EXTENSIONS_P_H
#define QOPENGL_EXTENSIONS_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 Qt OpenGL classes. This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//
#include <QtGui/private/qtguiglobal_p.h>
#include "qopenglextrafunctions.h"
QT_BEGIN_NAMESPACE
class QOpenGLExtensionsPrivate;
class Q_GUI_EXPORT QOpenGLExtensions : public QOpenGLExtraFunctions
{
Q_DECLARE_PRIVATE(QOpenGLExtensions)
public:
QOpenGLExtensions();
QOpenGLExtensions(QOpenGLContext *context);
~QOpenGLExtensions() {}
enum OpenGLExtension {
TextureRectangle = 0x00000001,
GenerateMipmap = 0x00000002,
TextureCompression = 0x00000004,
MirroredRepeat = 0x00000008,
FramebufferMultisample = 0x00000010,
StencilTwoSide = 0x00000020,
StencilWrap = 0x00000040,
PackedDepthStencil = 0x00000080,
NVFloatBuffer = 0x00000100,
PixelBufferObject = 0x00000200,
FramebufferBlit = 0x00000400,
BGRATextureFormat = 0x00000800,
DDSTextureCompression = 0x00001000,
ETC1TextureCompression = 0x00002000,
PVRTCTextureCompression = 0x00004000,
ElementIndexUint = 0x00008000,
Depth24 = 0x00010000,
SRGBFrameBuffer = 0x00020000,
MapBuffer = 0x00040000,
GeometryShaders = 0x00080000,
MapBufferRange = 0x00100000,
Sized8Formats = 0x00200000,
DiscardFramebuffer = 0x00400000,
Sized16Formats = 0x00800000,
TextureSwizzle = 0x01000000,
StandardDerivatives = 0x02000000,
ASTCTextureCompression = 0x04000000,
ETC2TextureCompression = 0x08000000,
HalfFloatVertex = 0x10000000,
MultiView = 0x20000000,
MultiViewExtended = 0x40000000
};
Q_DECLARE_FLAGS(OpenGLExtensions, OpenGLExtension)
OpenGLExtensions openGLExtensions();
bool hasOpenGLExtension(QOpenGLExtensions::OpenGLExtension extension) const;
GLvoid *glMapBuffer(GLenum target, GLenum access);
void glGetBufferSubData(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, GLvoid *data);
void flushShared();
void discardFramebuffer(GLenum target, GLsizei numAttachments, const GLenum *attachments);
QOpenGLExtensionsPrivate *d() const;
private:
static bool isInitialized(const QOpenGLFunctionsPrivate *d) { return d != nullptr; }
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QOpenGLExtensions::OpenGLExtensions)
class QOpenGLExtensionsPrivate : public QOpenGLExtraFunctionsPrivate
{
public:
explicit QOpenGLExtensionsPrivate(QOpenGLContext *ctx);
GLvoid* (QOPENGLF_APIENTRYP MapBuffer)(GLenum target, GLenum access);
void (QOPENGLF_APIENTRYP GetBufferSubData)(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, GLvoid *data);
void (QOPENGLF_APIENTRYP DiscardFramebuffer)(GLenum target, GLsizei numAttachments, const GLenum *attachments);
bool flushVendorChecked;
bool flushIsSufficientToSyncContexts;
};
inline QOpenGLExtensionsPrivate *QOpenGLExtensions::d() const
{
return static_cast<QOpenGLExtensionsPrivate *>(d_ptr);
}
inline GLvoid *QOpenGLExtensions::glMapBuffer(GLenum target, GLenum access)
{
Q_D(QOpenGLExtensions);
Q_ASSERT(QOpenGLExtensions::isInitialized(d));
GLvoid *result = d->MapBuffer(target, access);
Q_OPENGL_FUNCTIONS_DEBUG
return result;
}
inline void QOpenGLExtensions::glGetBufferSubData(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, GLvoid *data)
{
Q_D(QOpenGLExtensions);
Q_ASSERT(QOpenGLExtensions::isInitialized(d));
d->GetBufferSubData(target, offset, size, data);
Q_OPENGL_FUNCTIONS_DEBUG
}
QT_END_NAMESPACE
#endif // QOPENGL_EXTENSIONS_P_H
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