void QWindowCompositor::render()
{
m_window->makeCurrent();
cleanupGraphicsResources();
m_backgroundTexture = m_textureCache->bindTexture(QOpenGLContext::currentContext(),m_backgroundImage);
m_textureBlitter->bind();
// Draw the background image texture
m_textureBlitter->drawTexture(m_backgroundTexture,
QRect(QPoint(0, 0), m_backgroundImage.size()),
window()->size(),
0, false, true);
foreach (QWaylandSurface *surface, m_surfaces) {
if (!surface->visible())
continue;
GLuint texture = composeSurface(surface);
QRect geo(surface->pos().toPoint(),surface->size());
m_textureBlitter->drawTexture(texture,geo,m_window->size(),0,false,surface->isYInverted());
}
m_textureBlitter->release();
frameFinished();
// N.B. Never call glFinish() here as the busylooping with vsync 'feature' of the nvidia binary driver is not desirable.
m_window->swapBuffers();
}
void LipstickCompositor::surfaceDamaged(const QRect &)
{
if (!isVisible()) {
// If the compositor is not visible, do not throttle.
// make it conditional to QT_WAYLAND_COMPOSITOR_NO_THROTTLE?
frameFinished(0);
}
}
void LipstickCompositor::windowSwapped()
{
#if QT_VERSION >= QT_VERSION_CHECK(5,2,0)
if (m_fullscreenSurface) {
sendFrameCallbacks(QList<QWaylandSurface *>() << m_fullscreenSurface);
} else {
sendFrameCallbacks(surfaces());
}
#else
frameFinished(m_fullscreenSurface);
#endif
}
void LipstickCompositor::surfaceDamaged(const QRect &)
{
if (!isVisible()) {
// If the compositor is not visible, do not throttle.
// make it conditional to QT_WAYLAND_COMPOSITOR_NO_THROTTLE?
#if QT_VERSION >= QT_VERSION_CHECK(5,2,0)
sendFrameCallbacks(surfaces());
#else
frameFinished(0);
#endif
}
}
QSGNode *EmulatorItem::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *updatePaintNodeData)
{
QSGSimpleTextureNode *n = static_cast<QSGSimpleTextureNode *>(oldNode);
if (!n) {
m_gl = window()->openglContext()->functions();
connect(window(), SIGNAL(frameFinished()), this, SLOT(onFrameFinished()));
n = new QSGSimpleTextureNode();
QImage img(GFX_WIDTH, GFX_HEIGHT, QImage::Format_RGBA8888);
m_screen = new GLuint[GFX_WIDTH * GFX_HEIGHT];
img.fill(Qt::green);
m_texture = window()->createTextureFromImage(img);
m_texture->setFiltering(QSGTexture::Linear);
n->setTexture(m_texture);
n->setRect(boundingRect());
}
m_texture->bind();
m_gl->glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, GFX_WIDTH - 16, GFX_HEIGHT - 32, 0, GL_RGB, GL_UNSIGNED_BYTE, m_screen);
return n;
}
void XApp::draw() {
if (ovrRendering) {
vr.startFrame();
}
app->draw();
// Present the frame, if in VR this was already done by oculus SDK
if (!ovrRendering) {
int frameIndex = xapp().getCurrentBackBufferIndex();
lastPresentedFrame = frameIndex;
ThrowIfFailedWithDevice(swapChain->Present(0, 0), xapp().device.Get());
}
if (ovrRendering) {
vr.endFrame();
if (ovrMirror) {
int frameIndex = xapp().getCurrentBackBufferIndex();
lastPresentedFrame = frameIndex;
ThrowIfFailedWithDevice(swapChain->Present(0, 0), xapp().device.Get());
}
}
frameFinished();
}
void SystemCompositor::frameSwapped()
{
frameFinished(m_currentSurface);
}
void LipstickCompositor::windowSwapped()
{
frameFinished(m_fullscreenSurface);
}