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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qeglplatformcontext_p.h"
#include "qeglconvenience_p.h"
#include <qpa/qplatformwindow.h>
#include <EGL/egl.h>
QEGLPlatformContext::QEGLPlatformContext(const QSurfaceFormat &format, QPlatformOpenGLContext *share, EGLDisplay display,
EGLenum eglApi)
: m_eglDisplay(display)
, m_eglApi(eglApi)
, m_format(format)
{
EGLConfig config = q_configFromGLFormat(display, format, true);
m_format = q_glFormatFromConfig(display, config);
m_shareContext = share ? static_cast<QEGLPlatformContext *>(share)->m_eglContext : 0;
QVector<EGLint> contextAttrs;
contextAttrs.append(EGL_CONTEXT_CLIENT_VERSION);
contextAttrs.append(format.majorVersion());
contextAttrs.append(EGL_NONE);
eglBindAPI(m_eglApi);
m_eglContext = eglCreateContext(m_eglDisplay, config, m_shareContext, contextAttrs.constData());
if (m_eglContext == EGL_NO_CONTEXT && m_shareContext != EGL_NO_CONTEXT) {
m_shareContext = 0;
m_eglContext = eglCreateContext(m_eglDisplay, config, 0, contextAttrs.constData());
}
}
bool QEGLPlatformContext::makeCurrent(QPlatformSurface *surface)
{
#ifdef QEGL_EXTRA_DEBUG
qWarning("QEglContext::makeCurrent: %p\n",this);
#endif
eglBindAPI(m_eglApi);
EGLSurface eglSurface = eglSurfaceForPlatformSurface(surface);
bool ok = eglMakeCurrent(m_eglDisplay, eglSurface, eglSurface, m_eglContext);
if (!ok)
qWarning("QEGLPlatformContext::makeCurrent: eglError: %x, this: %p \n", eglGetError(), this);
#ifdef QEGL_EXTRA_DEBUG
static bool showDebug = true;
if (showDebug) {
showDebug = false;
const char *str = (const char*)glGetString(GL_VENDOR);
qWarning("Vendor %s\n", str);
str = (const char*)glGetString(GL_RENDERER);
qWarning("Renderer %s\n", str);
str = (const char*)glGetString(GL_VERSION);
qWarning("Version %s\n", str);
str = (const char*)glGetString(GL_SHADING_LANGUAGE_VERSION);
qWarning("Extensions %s\n",str);
str = (const char*)glGetString(GL_EXTENSIONS);
qWarning("Extensions %s\n", str);
}
#endif
return ok;
}
QEGLPlatformContext::~QEGLPlatformContext()
{
#ifdef QEGL_EXTRA_DEBUG
qWarning("QEglContext::~QEglContext(): %p\n",this);
#endif
if (m_eglContext != EGL_NO_CONTEXT) {
eglDestroyContext(m_eglDisplay, m_eglContext);
m_eglContext = EGL_NO_CONTEXT;
}
}
void QEGLPlatformContext::doneCurrent()
{
#ifdef QEGL_EXTRA_DEBUG
qWarning("QEglContext::doneCurrent:%p\n",this);
#endif
eglBindAPI(m_eglApi);
bool ok = eglMakeCurrent(m_eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
if (!ok)
qWarning("QEGLPlatformContext::doneCurrent(): eglError: %d, this: %p \n", eglGetError(), this);
}
void QEGLPlatformContext::swapBuffers(QPlatformSurface *surface)
{
#ifdef QEGL_EXTRA_DEBUG
qWarning("QEglContext::swapBuffers:%p\n",this);
#endif
eglBindAPI(m_eglApi);
EGLSurface eglSurface = eglSurfaceForPlatformSurface(surface);
bool ok = eglSwapBuffers(m_eglDisplay, eglSurface);
if (!ok)
qWarning("QEGLPlatformContext::swapBuffers(): eglError: %d, this: %p \n", eglGetError(), this);
}
void (*QEGLPlatformContext::getProcAddress(const QByteArray &procName)) ()
{
#ifdef QEGL_EXTRA_DEBUG
qWarning("QEglContext::getProcAddress%p\n",this);
#endif
eglBindAPI(m_eglApi);
return eglGetProcAddress(procName.constData());
}
QSurfaceFormat QEGLPlatformContext::format() const
{
return m_format;
}
EGLContext QEGLPlatformContext::eglContext() const
{
return m_eglContext;
}
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