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/****************************************************************************
**
** This file is part of QtCompositor**
**
** Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
**
** Contact: Nokia Corporation qt-info@nokia.com
**
** You may use this file under the terms of the BSD license as follows:
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**
** Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
**
** Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
**
** Neither the name of Nokia Corporation and its Subsidiary(-ies) nor the
** names of its contributors may be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
****************************************************************************/
#include "waylandeglintegration.h"
#include <QtGui/QPlatformNativeInterface>
#include <QtGui/QGuiApplication>
#include <QtGui/QOpenGLContext>
#define EGL_EGLEXT_PROTOTYPES
#include <EGL/egl.h>
#include <EGL/eglext.h>
#define GL_GLEXT_PROTOTYPES
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
GraphicsHardwareIntegration * GraphicsHardwareIntegration::createGraphicsHardwareIntegration(WaylandCompositor *compositor)
{
return new WaylandEglIntegration(compositor);
}
class WaylandEglIntegrationPrivate
{
public:
WaylandEglIntegrationPrivate()
: egl_display(EGL_NO_DISPLAY)
, egl_context(EGL_NO_CONTEXT)
{ }
EGLDisplay egl_display;
EGLContext egl_context;
bool valid;
};
WaylandEglIntegration::WaylandEglIntegration(WaylandCompositor *compositor)
: GraphicsHardwareIntegration(compositor)
, d_ptr(new WaylandEglIntegrationPrivate)
{
d_ptr->valid = false;
}
void WaylandEglIntegration::initializeHardware(Wayland::Display *waylandDisplay)
{
Q_D(WaylandEglIntegration);
//We need a window id now :)
m_compositor->window()->winId();
QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface();
if (nativeInterface) {
d->egl_display = nativeInterface->nativeResourceForWindow("EglDisplay", m_compositor->window());
if (d->egl_display) {
const char *extensionString = eglQueryString(d->egl_display, EGL_EXTENSIONS);
if (extensionString && strstr(extensionString, "EGL_WL_bind_wayland_display")
&& eglBindWaylandDisplayWL(d->egl_display, waylandDisplay->handle()))
{
d->valid = true;
}
}
if (!d->valid)
qWarning("Failed to initialize egl display\n");
d->egl_context = nativeInterface->nativeResourceForContext("EglContext", m_compositor->glContext());
}
}
GLuint WaylandEglIntegration::createTextureFromBuffer(wl_buffer *buffer)
{
Q_D(WaylandEglIntegration);
if (!d->valid) {
qWarning("createTextureFromBuffer() failed\n");
return 0;
}
EGLImageKHR image = eglCreateImageKHR(d->egl_display, d->egl_context,
EGL_WAYLAND_BUFFER_WL,
buffer, NULL);
GLuint textureId;
glGenTextures(1,&textureId);
glBindTexture(GL_TEXTURE_2D, textureId);
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
eglDestroyImageKHR(d->egl_display, image);
return textureId;
}
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