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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the plugins 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qeglplatformcontext.h"
#include <QtGui/QPlatformWindow>
#include "qeglconvenience.h"
#include <EGL/egl.h>
QEGLPlatformContext::QEGLPlatformContext(EGLDisplay display, EGLConfig config, EGLint contextAttrs[], EGLSurface surface, EGLenum eglApi, QEGLPlatformContext *shareContext)
: QPlatformGLContext()
, m_eglDisplay(display)
, m_eglSurface(surface)
, m_eglApi(eglApi)
{
if (m_eglSurface == EGL_NO_SURFACE) {
qWarning("Createing QEGLPlatformContext with no surface");
}
eglBindAPI(m_eglApi);
EGLContext shareEglContext = shareContext ? shareContext->eglContext() : 0;
m_eglContext = eglCreateContext(m_eglDisplay,config, shareEglContext, contextAttrs);
if (m_eglContext == EGL_NO_CONTEXT) {
qWarning("Could not create the egl context\n");
eglTerminate(m_eglDisplay);
qFatal("EGL error");
}
m_windowFormat = qt_qPlatformWindowFormatFromConfig(display,config);
}
QEGLPlatformContext::~QEGLPlatformContext()
{
#ifdef QEGL_EXTRA_DEBUG
qWarning("QEglContext::~QEglContext(): %p\n",this);
#endif
if (m_eglSurface != EGL_NO_SURFACE) {
doneCurrent();
eglDestroySurface(m_eglDisplay, m_eglSurface);
m_eglSurface = EGL_NO_SURFACE;
}
if (m_eglContext != EGL_NO_CONTEXT) {
eglDestroyContext(m_eglDisplay, m_eglContext);
m_eglContext = EGL_NO_CONTEXT;
}
}
void QEGLPlatformContext::makeCurrent()
{
QPlatformGLContext::makeCurrent();
#ifdef QEGL_EXTRA_DEBUG
qWarning("QEglContext::makeCurrent: %p\n",this);
#endif
eglBindAPI(m_eglApi);
bool ok = eglMakeCurrent(m_eglDisplay, m_eglSurface, m_eglSurface, m_eglContext);
if (!ok)
qWarning("QEGLPlatformContext::makeCurrent: eglError: %d, 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
}
void QEGLPlatformContext::doneCurrent()
{
QPlatformGLContext::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()
{
#ifdef QEGL_EXTRA_DEBUG
qWarning("QEglContext::swapBuffers:%p\n",this);
#endif
eglBindAPI(m_eglApi);
bool ok = eglSwapBuffers(m_eglDisplay, m_eglSurface);
if (!ok)
qWarning("QEGLPlatformContext::swapBuffers(): eglError: %d, this: %p \n", eglGetError(), this);
}
void* QEGLPlatformContext::getProcAddress(const QString& procName)
{
#ifdef QEGL_EXTRA_DEBUG
qWarning("QEglContext::getProcAddress%p\n",this);
#endif
eglBindAPI(m_eglApi);
return (void *)eglGetProcAddress(qPrintable(procName));
}
QPlatformWindowFormat QEGLPlatformContext::platformWindowFormat() const
{
return m_windowFormat;
}
EGLContext QEGLPlatformContext::eglContext() const
{
return m_eglContext;
}
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