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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the qmake spec 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qeglfshooks.h"
#include <ui/DisplayInfo.h>
#include <ui/FramebufferNativeWindow.h>
#include <gui/SurfaceComposerClient.h>
#include <fcntl.h>
#include <unistd.h>
#include <linux/fb.h>
#include <sys/ioctl.h>
using namespace android;
QT_BEGIN_NAMESPACE
class QEglFSPandaHooks : public QEglFSHooks
{
public:
QEglFSPandaHooks();
virtual EGLNativeWindowType createNativeWindow(const QSize &size, const QSurfaceFormat &format);
virtual QSize screenSize() const;
virtual int screenDepth() const;
virtual bool filterConfig(EGLDisplay display, EGLConfig config) const;
private:
EGLNativeWindowType createNativeWindowSurfaceFlinger(const QSize &size, const QSurfaceFormat &format);
EGLNativeWindowType createNativeWindowFramebuffer(const QSize &size, const QSurfaceFormat &format);
void ensureFramebufferNativeWindowCreated();
// androidy things
sp<android::SurfaceComposerClient> mSession;
sp<android::SurfaceControl> mControl;
sp<android::Surface> mAndroidSurface;
sp<android::FramebufferNativeWindow> mFramebufferNativeWindow;
EGLint mFramebufferVisualId;
bool mUseFramebuffer;
};
QEglFSPandaHooks::QEglFSPandaHooks()
: mFramebufferVisualId(EGL_DONT_CARE)
{
mUseFramebuffer = qgetenv("QT_QPA_EGLFS_NO_SURFACEFLINGER").toInt();
}
void QEglFSPandaHooks::ensureFramebufferNativeWindowCreated()
{
if (mFramebufferNativeWindow.get())
return;
mFramebufferNativeWindow = new FramebufferNativeWindow();
framebuffer_device_t const *fbDev = mFramebufferNativeWindow->getDevice();
if (!fbDev)
qFatal("Failed to get valid FramebufferNativeWindow, no way to create EGL surfaces");
ANativeWindow *window = mFramebufferNativeWindow.get();
window->query(window, NATIVE_WINDOW_FORMAT, &mFramebufferVisualId);
}
EGLNativeWindowType QEglFSPandaHooks::createNativeWindow(const QSize &size, const QSurfaceFormat &format)
{
return mUseFramebuffer ? createNativeWindowFramebuffer(size, format) : createNativeWindowSurfaceFlinger(size, format);
}
EGLNativeWindowType QEglFSPandaHooks::createNativeWindowFramebuffer(const QSize &size, const QSurfaceFormat &)
{
Q_UNUSED(size);
ensureFramebufferNativeWindowCreated();
return mFramebufferNativeWindow.get();
}
EGLNativeWindowType QEglFSPandaHooks::createNativeWindowSurfaceFlinger(const QSize &size, const QSurfaceFormat &)
{
Q_UNUSED(size);
mSession = new SurfaceComposerClient();
DisplayInfo dinfo;
int status=0;
status = mSession->getDisplayInfo(0, &dinfo);
mControl = mSession->createSurface(
0, dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_888);
SurfaceComposerClient::openGlobalTransaction();
mControl->setLayer(0x40000000);
// mControl->setAlpha(1);
SurfaceComposerClient::closeGlobalTransaction();
mAndroidSurface = mControl->getSurface();
EGLNativeWindowType eglWindow = mAndroidSurface.get();
return eglWindow;
}
bool QEglFSPandaHooks::filterConfig(EGLDisplay display, EGLConfig config) const
{
if (!mUseFramebuffer)
return true;
const_cast<QEglFSPandaHooks *>(this)->ensureFramebufferNativeWindowCreated();
if (mFramebufferVisualId == EGL_DONT_CARE)
return true;
EGLint nativeVisualId = 0;
eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &nativeVisualId);
return nativeVisualId == mFramebufferVisualId;
}
QSize QEglFSPandaHooks::screenSize() const
{
static QSize size;
if (size.isEmpty()) {
int width = qgetenv("QT_QPA_EGLFS_WIDTH").toInt();
int height = qgetenv("QT_QPA_EGLFS_HEIGHT").toInt();
if (width && height) {
// no need to read fb0
size.setWidth(width);
size.setHeight(height);
return size;
}
struct fb_var_screeninfo vinfo;
int fd = open("/dev/graphics/fb0", O_RDONLY);
if (fd != -1) {
if (ioctl(fd, FBIOGET_VSCREENINFO, &vinfo) == -1)
qWarning("Could not query variable screen info.");
else
size = QSize(vinfo.xres, vinfo.yres);
close(fd);
} else {
qWarning("Failed to open /dev/graphics/fb0 to detect screen resolution.");
}
// override fb0 from environment var setting
if (width)
size.setWidth(width);
if (height)
size.setHeight(height);
}
return size;
}
int QEglFSPandaHooks::screenDepth() const
{
static int depth = qgetenv("QT_QPA_EGLFS_DEPTH").toInt();
if (depth == 0) {
struct fb_var_screeninfo vinfo;
int fd = open("/dev/graphics/fb0", O_RDONLY);
if (fd != -1) {
if (ioctl(fd, FBIOGET_VSCREENINFO, &vinfo) == -1)
qWarning("Could not query variable screen info.");
else
depth = vinfo.bits_per_pixel;
close(fd);
} else {
qWarning("Failed to open /dev/graphics/fb0 to detect screen depth.");
}
}
return depth == 0 ? 32 : depth;
}
static QEglFSPandaHooks eglFSPandaHooks;
QEglFSHooks *platformHooks = &eglFSPandaHooks;
QT_END_NAMESPACE
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