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// Copyright © 2012 Canonical Ltd
// FIXME(loicm) Add copyright notice here.
#include "qhybrisscreen.h"
#include "qhybriswindow.h"
#include <QtPlatformSupport/private/qeglconvenience_p.h>
#include <QtPlatformSupport/private/qeglplatformcontext_p.h>
QT_BEGIN_NAMESPACE
class QHybrisContext : public QEGLPlatformContext {
public:
QHybrisContext(const QSurfaceFormat& format, QPlatformOpenGLContext* share, EGLDisplay display,
EGLenum eglApi = EGL_OPENGL_ES_API)
: QEGLPlatformContext(format, share, display, eglApi) {
}
EGLSurface eglSurfaceForPlatformSurface(QPlatformSurface* surface) {
QHybrisWindow* window = static_cast<QHybrisWindow*>(surface);
QHybrisScreen* screen = static_cast<QHybrisScreen*>(window->screen());
return screen->surface();
}
};
QHybrisScreen::QHybrisScreen(EGLNativeDisplayType display)
: m_depth(32)
, m_format(QImage::Format_Invalid)
, m_platformContext(0)
, m_surface(0) {
#ifdef QHYBRIS_DEBUG
qWarning("QEglScreen %p\n", this);
#endif
EGLint major, minor;
if (!eglBindAPI(EGL_OPENGL_ES_API)) {
qWarning("Could not bind GL_ES API\n");
qFatal("EGL error");
}
m_dpy = eglGetDisplay(display);
if (m_dpy == EGL_NO_DISPLAY) {
qWarning("Could not open egl display\n");
qFatal("EGL error");
}
qWarning("Opened display %p\n", m_dpy);
if (!eglInitialize(m_dpy, &major, &minor)) {
qWarning("Could not initialize egl display\n");
qFatal("EGL error");
}
qWarning("Initialized display %d %d\n", major, minor);
int swapInterval = 1;
QByteArray swapIntervalString = qgetenv("QT_QPA_EGLFS_SWAPINTERVAL");
if (!swapIntervalString.isEmpty()) {
bool ok;
swapInterval = swapIntervalString.toInt(&ok);
if (!ok)
swapInterval = 1;
}
eglSwapInterval(m_dpy, swapInterval);
}
QHybrisScreen::~QHybrisScreen() {
if (m_surface)
eglDestroySurface(m_dpy, m_surface);
eglTerminate(m_dpy);
}
void QHybrisScreen::createAndSetPlatformContext() const {
const_cast<QHybrisScreen*>(this)->createAndSetPlatformContext();
}
void QHybrisScreen::createAndSetPlatformContext() {
QSurfaceFormat platformFormat;
QByteArray depthString = qgetenv("QT_QPA_EGLFS_DEPTH");
if (depthString.toInt() == 16) {
platformFormat.setDepthBufferSize(16);
platformFormat.setRedBufferSize(5);
platformFormat.setGreenBufferSize(6);
platformFormat.setBlueBufferSize(5);
m_depth = 16;
m_format = QImage::Format_RGB16;
} else {
platformFormat.setDepthBufferSize(24);
platformFormat.setStencilBufferSize(8);
platformFormat.setRedBufferSize(8);
platformFormat.setGreenBufferSize(8);
platformFormat.setBlueBufferSize(8);
m_depth = 32;
m_format = QImage::Format_RGB32;
}
if (!qEnvironmentVariableIsEmpty("QT_QPA_EGLFS_MULTISAMPLE"))
platformFormat.setSamples(4);
EGLConfig config = q_configFromGLFormat(m_dpy, platformFormat);
EGLNativeWindowType eglWindow = 0;
#ifdef QHYBRIS_DEBUG
q_printEglConfig(m_dpy, config);
#endif
m_surface = eglCreateWindowSurface(m_dpy, config, eglWindow, NULL);
if (m_surface == EGL_NO_SURFACE) {
qWarning("Could not create the egl surface: error = 0x%x\n", eglGetError());
eglTerminate(m_dpy);
qFatal("EGL error");
}
QEGLPlatformContext* platformContext = new QHybrisContext(platformFormat, 0, m_dpy);
m_platformContext = platformContext;
EGLint w, h;
eglQuerySurface(m_dpy, m_surface, EGL_WIDTH, &w);
eglQuerySurface(m_dpy, m_surface, EGL_HEIGHT, &h);
m_geometry = QRect(0,0,w,h);
}
QRect QHybrisScreen::geometry() const {
if (m_geometry.isNull()) {
createAndSetPlatformContext();
}
return m_geometry;
}
int QHybrisScreen::depth() const {
return m_depth;
}
QImage::Format QHybrisScreen::format() const {
if (m_format == QImage::Format_Invalid)
createAndSetPlatformContext();
return m_format;
}
QPlatformOpenGLContext *QHybrisScreen::platformContext() const {
if (!m_platformContext) {
QHybrisScreen* screen = const_cast<QHybrisScreen*>(this);
screen->createAndSetPlatformContext();
}
return m_platformContext;
}
QT_END_NAMESPACE
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