Plugin-side support for creating/destroying/waiting on fence sync.

Merge-request: 2502
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>

4 files changed, 49 insertions, 13 deletions

diff --git a/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp b/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp
index 02e1143..063af13 100644
--- a/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp
+++ b/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp
@@ -82,9 +82,9 @@ QWindowSurface* QMeeGoGraphicsSystem::createWindowSurface(QWidget *widget) const
 
 QPixmapData *QMeeGoGraphicsSystem::createPixmapData(QPixmapData::PixelType type) const
 {
-    // Long story short: without this it's possible to hit an 
-    // uninitialized paintDevice due to a Qt bug too complex to even
-    // explain here... not to mention fix without going crazy. 
+    // Long story short: without this it's possible to hit an
+    // unitialized paintDevice due to a Qt bug too complex to even
+    // explain here... not to mention fix without going crazy.
     // MDK
     QGLShareContextScope ctx(qt_gl_share_widget()->context());
 
@@ -218,10 +218,10 @@ QPixmapData* QMeeGoGraphicsSystem::pixmapDataFromLiveTextureHandle(Qt::HANDLE ha
     return new QMeeGoLivePixmapData(handle);
 }
 
-QImage* QMeeGoGraphicsSystem::lockLiveTexture(QPixmap* pixmap)
+QImage* QMeeGoGraphicsSystem::lockLiveTexture(QPixmap* pixmap, void* fenceSync)
 {
     QMeeGoLivePixmapData *pixmapData = static_cast<QMeeGoLivePixmapData*>(pixmap->data_ptr().data());
-    return pixmapData->lock();
+    return pixmapData->lock(fenceSync);
 }
 
 bool QMeeGoGraphicsSystem::releaseLiveTexture(QPixmap *pixmap, QImage *image)
@@ -236,6 +236,20 @@ Qt::HANDLE QMeeGoGraphicsSystem::getLiveTextureHandle(QPixmap *pixmap)
     return pixmapData->handle();
 }
 
+void* QMeeGoGraphicsSystem::createFenceSync()
+{
+    QGLShareContextScope ctx(qt_gl_share_widget()->context());
+    QMeeGoExtensions::ensureInitialized();
+    return QMeeGoExtensions::eglCreateSyncKHR(QEgl::display(), EGL_SYNC_FENCE_KHR, NULL);
+}
+
+void QMeeGoGraphicsSystem::destroyFenceSync(void *fenceSync)
+{
+    QGLShareContextScope ctx(qt_gl_share_widget()->context());
+    QMeeGoExtensions::ensureInitialized();
+    QMeeGoExtensions::eglDestroySyncKHR(QEgl::display(), fenceSync);
+}
+
 /* C API */
 
 int qt_meego_image_to_egl_shared_image(const QImage &image)
@@ -288,9 +302,9 @@ QPixmapData* qt_meego_pixmapdata_from_live_texture_handle(Qt::HANDLE handle)
     return QMeeGoGraphicsSystem::pixmapDataFromLiveTextureHandle(handle);
 }
 
-QImage* qt_meego_live_texture_lock(QPixmap *pixmap)
+QImage* qt_meego_live_texture_lock(QPixmap *pixmap, void *fenceSync)
 {
-    return QMeeGoGraphicsSystem::lockLiveTexture(pixmap);
+    return QMeeGoGraphicsSystem::lockLiveTexture(pixmap, fenceSync);
 }
 
 bool qt_meego_live_texture_release(QPixmap *pixmap, QImage *image)
@@ -302,3 +316,13 @@ Qt::HANDLE qt_meego_live_texture_get_handle(QPixmap *pixmap)
 {
     return QMeeGoGraphicsSystem::getLiveTextureHandle(pixmap);
 }
+
+void* qt_meego_create_fence_sync(void)
+{
+    return QMeeGoGraphicsSystem::createFenceSync();
+}
+
+void qt_meego_destroy_fence_sync(void* fs)
+{
+    return QMeeGoGraphicsSystem::destroyFenceSync(fs);
+}
diff --git a/src/plugins/graphicssystems/meego/qmeegographicssystem.h b/src/plugins/graphicssystems/meego/qmeegographicssystem.h
index 2697f0f..1e50f00 100644
--- a/src/plugins/graphicssystems/meego/qmeegographicssystem.h
+++ b/src/plugins/graphicssystems/meego/qmeegographicssystem.h
@@ -69,10 +69,13 @@ public:
 
     static QPixmapData *pixmapDataWithNewLiveTexture(int w, int h, QImage::Format format);
     static QPixmapData *pixmapDataFromLiveTextureHandle(Qt::HANDLE handle);
-    static QImage *lockLiveTexture(QPixmap* pixmap);
+    static QImage *lockLiveTexture(QPixmap* pixmap, void* fenceSync);
     static bool releaseLiveTexture(QPixmap *pixmap, QImage *image);
     static Qt::HANDLE getLiveTextureHandle(QPixmap *pixmap);
 
+    static void* createFenceSync();
+    static void destroyFenceSync(void* fenceSync);
+
 private:
     static bool meeGoRunning();
     static EGLSurface getSurfaceForLiveTexturePixmap(QPixmap *pixmap);
@@ -95,9 +98,11 @@ extern "C" {
     Q_DECL_EXPORT void qt_meego_set_translucent(bool translucent);    
     Q_DECL_EXPORT QPixmapData* qt_meego_pixmapdata_with_new_live_texture(int w, int h, QImage::Format format);
     Q_DECL_EXPORT QPixmapData* qt_meego_pixmapdata_from_live_texture_handle(Qt::HANDLE handle);
-    Q_DECL_EXPORT QImage* qt_meego_live_texture_lock(QPixmap *pixmap);
+    Q_DECL_EXPORT QImage* qt_meego_live_texture_lock(QPixmap *pixmap, void *fenceSync);
     Q_DECL_EXPORT bool qt_meego_live_texture_release(QPixmap *pixmap, QImage *image);
     Q_DECL_EXPORT Qt::HANDLE qt_meego_live_texture_get_handle(QPixmap *pixmap);
+    Q_DECL_EXPORT void* qt_meego_create_fence_sync(void);
+    Q_DECL_EXPORT void qt_meego_destroy_fence_sync(void* fs);
 }
 
 #endif 
diff --git a/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.cpp b/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.cpp
index 405b765..3ef35e1 100644
--- a/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.cpp
+++ b/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.cpp
@@ -40,7 +40,6 @@
 ****************************************************************************/
 
 #include "qmeegolivepixmapdata.h"
-#include "qmeegoextensions.h"
 #include "qmeegorasterpixmapdata.h"
 #include <private/qimage_p.h>
 #include <private/qwindowsurface_gl_p.h>
@@ -171,11 +170,18 @@ QPixmapData *QMeeGoLivePixmapData::createCompatiblePixmapData() const
     return new QMeeGoRasterPixmapData(pixelType());
 }
 
-QImage* QMeeGoLivePixmapData::lock()
+QImage* QMeeGoLivePixmapData::lock(EGLSyncKHR fenceSync)
 {
     QGLShareContextScope ctx(qt_gl_share_widget()->context());
     QMeeGoExtensions::ensureInitialized();
 
+    if (fenceSync) {
+        QMeeGoExtensions::eglClientWaitSyncKHR(QEgl::display(),
+                                               fenceSync,
+                                               EGL_SYNC_FLUSH_COMMANDS_BIT_KHR,
+                                               EGL_FOREVER_KHR);
+    }
+
     void *data = 0;
     int pitch = 0;
     EGLSurface surface = 0;
@@ -229,7 +235,7 @@ Qt::HANDLE QMeeGoLivePixmapData::handle()
 
 bool QMeeGoLivePixmapData::scroll(int dx, int dy, const QRect &rect)
 {
-    lock();
+    lock(NULL);
 
     if (!lockedImage.isNull())
         qt_scrollRectInImage(lockedImage, rect, QPoint(dx, dy));
diff --git a/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.h b/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.h
index cb123da..2c6854e 100644
--- a/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.h
+++ b/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.h
@@ -43,6 +43,7 @@
 #define MLIVEPIXMAPDATA_H
 
 #include <private/qpixmapdata_gl_p.h>
+#include "qmeegoextensions.h"
 
 class QMeeGoLivePixmapData : public QGLPixmapData
 {
@@ -56,7 +57,7 @@ public:
 
     void initializeThroughEGLImage();
 
-    QImage* lock();
+    QImage* lock(EGLSyncKHR fenceSync);
     bool release(QImage *img);
     Qt::HANDLE handle();