bool QX11GLWindowSurface::scroll(const QRegion &area, int dx, int dy)
{
if (m_backBuffer.isNull())
return false;
Q_ASSERT(m_backBuffer.data_ptr()->classId() == QPixmapData::X11Class);
// Make sure all GL rendering is complete before starting the scroll operation:
QGLContext* ctx = static_cast<QX11GLPixmapData*>(m_backBuffer.data_ptr().data())->context();
if (QGLContext::currentContext() != ctx && ctx && ctx->isValid())
ctx->makeCurrent();
eglWaitClient();
if (!m_pixmapGC)
m_pixmapGC = XCreateGC(X11->display, m_backBuffer.handle(), 0, 0);
foreach (const QRect& rect, area.rects()) {
XCopyArea(X11->display, m_backBuffer.handle(), m_backBuffer.handle(), m_pixmapGC,
rect.x(), rect.y(), rect.width(), rect.height(),
rect.x()+dx, rect.y()+dy);
}
// Make sure the scroll operation is complete before allowing GL rendering to resume
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
return true;
}
void
resize(int w, int h) {
if (w == width && h == height) {
return;
}
eglWaitClient();
// We need to ensure that pending events are processed here, and XSync
// with discard = True guarantees that, but it appears the limited
// event processing we do so far is sufficient
//XSync(display, True);
Drawable::resize(w, h);
XResizeWindow(display, window, w, h);
// Tell the window manager to respect the requested size
XSizeHints size_hints;
size_hints.max_width = size_hints.min_width = w;
size_hints.max_height = size_hints.min_height = h;
size_hints.flags = PMinSize | PMaxSize;
XSetWMNormalHints(display, window, &size_hints);
waitForEvent(ConfigureNotify);
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
}
~EglDrawable()
{
eglMakeCurrent(eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroySurface(eglDisplay, surface);
eglWaitClient();
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
}
void show(void) {
if (visible) {
return;
}
eglWaitClient();
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
Drawable::show();
}
/* EGLBoolean eglWaitNative ( EGLint engine ) */
static jboolean
android_eglWaitNative
(JNIEnv *_env, jobject _this, jint engine) {
EGLBoolean _returnValue = (EGLBoolean) 0;
_returnValue = eglWaitNative(
(EGLint)engine
);
return (jboolean)_returnValue;
}
EglDrawable(const Visual *vis, int w, int h, bool pbuffer) :
Drawable(vis, w, h, pbuffer),
api(EGL_OPENGL_ES_API),
windowId(0)
{
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
const EglVisual * eglVisual = static_cast<const EglVisual *>(visual);
update();
ANativeWindow_setBuffersGeometry(window.get(), 0, 0, eglVisual->format);
surface = eglCreateWindowSurface(eglDisplay, eglVisual->config, window.get(), NULL);
}
QRegion EglWaylandBackend::prepareRenderingFrame()
{
if (!lastDamage().isEmpty())
present();
QRegion repaint;
if (supportsBufferAge())
repaint = accumulatedDamageHistory(m_bufferAge);
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
startRenderTimer();
return repaint;
}
/* private native int _eglWaitNative ( int engine ) ; */
KNIEXPORT KNI_RETURNTYPE_INT
Java_javax_microedition_khronos_egl_EGL10Impl__1eglWaitNative() {
jint engine = KNI_GetParameterAsInt(1);
jint returnValue = (jint)eglWaitNative(engine);
#ifdef DEBUG
printf("eglWaitNative(%d) = %d\n", engine, returnValue);
#endif
KNI_ReturnInt(returnValue);
}
EglDrawable(const Visual *vis, int w, int h, bool pbuffer) :
Drawable(vis, w, h, pbuffer),
api(EGL_OPENGL_ES_API)
{
XVisualInfo *visinfo = static_cast<const EglVisual *>(visual)->visinfo;
const char *name = "eglretrace";
window = createWindow(visinfo, name, width, height);
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
EGLConfig config = static_cast<const EglVisual *>(visual)->config;
surface = eglCreateWindowSurface(eglDisplay, config, (EGLNativeWindowType)window, NULL);
}
void
resize(int w, int h) {
if (w == width && h == height) {
return;
}
eglWaitClient();
// We need to ensure that pending events are processed here, and XSync
// with discard = True guarantees that, but it appears the limited
// event processing we do so far is sufficient
//XSync(display, True);
Drawable::resize(w, h);
XResizeWindow(display, window, w, h);
// Tell the window manager to respect the requested size
XSizeHints size_hints;
size_hints.max_width = size_hints.min_width = w;
size_hints.max_height = size_hints.min_height = h;
size_hints.flags = PMinSize | PMaxSize;
XSetWMNormalHints(display, window, &size_hints);
waitForEvent(ConfigureNotify);
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
/*
* Some implementations won't update the backbuffer unless we recreate
* the EGL surface.
*/
int eglWidth;
int eglHeight;
eglQuerySurface(eglDisplay, surface, EGL_WIDTH, &eglWidth);
eglQuerySurface(eglDisplay, surface, EGL_HEIGHT, &eglHeight);
if (eglWidth != width || eglHeight != height) {
recreate();
eglQuerySurface(eglDisplay, surface, EGL_WIDTH, &eglWidth);
eglQuerySurface(eglDisplay, surface, EGL_HEIGHT, &eglHeight);
}
assert(eglWidth == width);
assert(eglHeight == height);
}
void show(void) {
if (visible) {
return;
}
eglWaitClient();
XMapWindow(display, window);
waitForEvent(MapNotify);
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
Drawable::show();
}
EglDrawable(const Visual *vis, int w, int h, bool pbuffer) :
Drawable(vis, w, h, pbuffer),
api(EGL_OPENGL_ES_API)
{
XVisualInfo *visinfo = static_cast<const EglVisual *>(visual)->visinfo;
Window root = RootWindow(display, screen);
/* window attributes */
XSetWindowAttributes attr;
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap(display, root, visinfo->visual, AllocNone);
attr.event_mask = StructureNotifyMask;
unsigned long mask;
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
int x = 0, y = 0;
window = XCreateWindow(
display, root,
x, y, width, height,
0,
visinfo->depth,
InputOutput,
visinfo->visual,
mask,
&attr);
XSizeHints sizehints;
sizehints.x = x;
sizehints.y = y;
sizehints.width = width;
sizehints.height = height;
sizehints.flags = USSize | USPosition;
XSetNormalHints(display, window, &sizehints);
const char *name = "glretrace";
XSetStandardProperties(
display, window, name, name,
None, (char **)NULL, 0, &sizehints);
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
EGLConfig config = static_cast<const EglVisual *>(visual)->config;
surface = eglCreateWindowSurface(eglDisplay, config, (EGLNativeWindowType)window, NULL);
}
void QX11GLWindowSurface::flush(QWidget *widget, const QRegion &widgetRegion, const QPoint &offset)
{
// We don't need to know the widget which initiated the flush. Instead we just use the offset
// to translate the widgetRegion:
Q_UNUSED(widget);
if (m_backBuffer.isNull()) {
qDebug("QX11GLWindowSurface::flush() - backBuffer is null, not flushing anything");
return;
}
Q_ASSERT(window()->size() != m_backBuffer.size());
// Wait for all GL rendering to the back buffer pixmap to complete before trying to
// copy it to the window. We do this by making sure the pixmap's context is current
// and then call eglWaitClient. The EGL 1.4 spec says eglWaitClient doesn't have to
// block, just that "All rendering calls...are guaranteed to be executed before native
// rendering calls". This makes it potentially less expensive than glFinish.
QGLContext* ctx = static_cast<QX11GLPixmapData*>(m_backBuffer.data_ptr().data())->context();
if (QGLContext::currentContext() != ctx && ctx && ctx->isValid())
ctx->makeCurrent();
eglWaitClient();
if (m_windowGC == 0) {
XGCValues attribs;
attribs.graphics_exposures = False;
m_windowGC = XCreateGC(X11->display, m_window->handle(), GCGraphicsExposures, &attribs);
}
int rectCount;
XRectangle *rects = (XRectangle *)qt_getClipRects(widgetRegion, rectCount);
if (rectCount <= 0)
return;
XSetClipRectangles(X11->display, m_windowGC, 0, 0, rects, rectCount, YXBanded);
QRect dirtyRect = widgetRegion.boundingRect().translated(-offset);
XCopyArea(X11->display, m_backBuffer.handle(), m_window->handle(), m_windowGC,
dirtyRect.x(), dirtyRect.y(), dirtyRect.width(), dirtyRect.height(),
dirtyRect.x(), dirtyRect.y());
// Make sure the blit of the update from the back buffer to the window completes
// before allowing rendering to start again to the back buffer. Otherwise the GPU
// might start rendering to the back buffer again while the blit takes place.
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
}
QPixmap QX11GLWindowSurface::grabWidget(const QWidget *widget, const QRect& rect) const
{
if (!widget || m_backBuffer.isNull())
return QPixmap();
QRect srcRect;
// make sure the rect is inside the widget & clip to widget's rect
if (!rect.isEmpty())
srcRect = rect & widget->rect();
else
srcRect = widget->rect();
if (srcRect.isEmpty())
return QPixmap();
// If it's a child widget we have to translate the coordinates
if (widget != window())
srcRect.translate(widget->mapTo(window(), QPoint(0, 0)));
QPixmap::x11SetDefaultScreen(widget->x11Info().screen());
QX11PixmapData *pmd = new QX11PixmapData(QPixmapData::PixmapType);
pmd->resize(srcRect.width(), srcRect.height());
QPixmap px(pmd);
GC tmpGc = XCreateGC(X11->display, m_backBuffer.handle(), 0, 0);
// Make sure all GL rendering is complete before copying the window
QGLContext* ctx = static_cast<QX11GLPixmapData*>(m_backBuffer.pixmapData())->context();
if (QGLContext::currentContext() != ctx && ctx && ctx->isValid())
ctx->makeCurrent();
eglWaitClient();
// Copy srcRect from the backing store to the new pixmap
XSetGraphicsExposures(X11->display, tmpGc, False);
XCopyArea(X11->display, m_backBuffer.handle(), px.handle(), tmpGc,
srcRect.x(), srcRect.y(), srcRect.width(), srcRect.height(), 0, 0);
XFreeGC(X11->display, tmpGc);
// Wait until the copy has finised before allowing more rendering into the back buffer
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
return px;
}
void EGLTextureFromPixmap::destroy()
{
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
if (m_surface != EGL_NO_SURFACE)
eglReleaseTexImage(EGLHelper::eglDisplay(), m_surface, EGL_BACK_BUFFER);
if (m_eglImage) {
EGLHelper::destroyEGLImage(m_eglImage);
m_eglImage = 0;
}
if (m_surface != EGL_NO_SURFACE) {
eglDestroySurface(EGLHelper::eglDisplay(), m_surface);
m_surface = EGL_NO_SURFACE;
}
eglWaitGL();
}
static void
clutter_backend_egl_redraw (ClutterBackend *backend,
ClutterStage *stage)
{
ClutterBackendEGL *backend_egl = CLUTTER_BACKEND_EGL (backend);
ClutterStageEGL *stage_egl;
ClutterStageWindow *impl;
impl = _clutter_stage_get_window (stage);
if (!impl)
return;
g_assert (CLUTTER_IS_STAGE_EGL (impl));
stage_egl = CLUTTER_STAGE_EGL (impl);
eglWaitNative (EGL_CORE_NATIVE_ENGINE);
clutter_actor_paint (CLUTTER_ACTOR (stage));
cogl_flush ();
eglWaitGL();
eglSwapBuffers (backend_egl->edpy, stage_egl->egl_surface);
}
void
resize(int w, int h) {
if (w == width && h == height) {
return;
}
eglWaitClient();
// We need to ensure that pending events are processed here, and XSync
// with discard = True guarantees that, but it appears the limited
// event processing we do so far is sufficient
//XSync(display, True);
Drawable::resize(w, h);
resizeWindow(window, w, h);
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
/*
* Some implementations won't update the backbuffer unless we recreate
* the EGL surface.
*/
int eglWidth;
int eglHeight;
eglQuerySurface(eglDisplay, surface, EGL_WIDTH, &eglWidth);
eglQuerySurface(eglDisplay, surface, EGL_HEIGHT, &eglHeight);
if (eglWidth != width || eglHeight != height) {
recreate();
eglQuerySurface(eglDisplay, surface, EGL_WIDTH, &eglWidth);
eglQuerySurface(eglDisplay, surface, EGL_HEIGHT, &eglHeight);
}
assert(eglWidth == width);
assert(eglHeight == height);
}
QRegion EglOnXBackend::prepareRenderingFrame()
{
QRegion repaint;
if (gs_tripleBufferNeedsDetection) {
// the composite timer floors the repaint frequency. This can pollute our triple buffering
// detection because the glXSwapBuffers call for the new frame has to wait until the pending
// one scanned out.
// So we compensate for that by waiting an extra milisecond to give the driver the chance to
// fllush the buffer queue
usleep(1000);
}
present();
if (supportsBufferAge())
repaint = accumulatedDamageHistory(m_bufferAge);
startRenderTimer();
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
return repaint;
}
static void
app_redraw(struct app_data *data)
{
/* pixmap has changed */
if (data->reshape || data->paint.active) {
/*
* The extension only states that
*
* If an application specifies an EGLImage sibling as the destination
* for rendering and/or pixel download operations (e.g., as an
* OpenGL-ES framebuffer object, glTexSubImage2D, etc.), the modified
* image results will be observed by all EGLImage siblings in all
* client API contexts.
*
* Though not required by the drivers I tested, I think the rules of
* "Propagating Changes to Objects" should apply here. That is, the
* changes made by the native engine must be completed and the resource
* must be re-attached.
*/
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
data->glEGLImageTargetTexture2DOES(data->target,
(GLeglImageOES) data->img);
}
XCopyArea(data->xdpy, data->pix, data->canvas, data->fg,
0, 0, data->width, data->height, 0, 0);
glPushMatrix();
glRotatef(data->animate.view_rotx, 1, 0, 0);
glRotatef(data->animate.view_roty, 0, 1, 0);
glRotatef(data->animate.view_rotz, 0, 0, 1);
gl_redraw();
glPopMatrix();
eglSwapBuffers(data->dpy, data->surf);
}
// Wait for native rendering operations to complete before starting
// to use OpenGL/OpenVG operations.
void QEglContext::waitNative()
{
#ifdef EGL_CORE_NATIVE_ENGINE
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
#endif
}
void GLContextEGL::waitNative()
{
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
}
JNIEXPORT jboolean JNICALL Java_org_lwjgl_opengles_EGL_eglWaitNative(JNIEnv *env, jclass clazz, jint engine) {
return eglWaitNative(engine);
}
static jboolean jni_eglWaitNative(JNIEnv *_env, jobject _this, jint engine, jobject bindTarget) {
return eglWaitNative(engine);
}
~EglDrawable() {
eglDestroySurface(eglDisplay, surface);
eglWaitClient();
XDestroyWindow(display, window);
eglWaitNative(EGL_CORE_NATIVE_ENGINE);
}