Changeset 769 for trunk/src/openvg/qwindowsurface_vgegl.cpp

Timestamp:

Aug 2, 2010, 9:27:30 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.3 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/openvg/qwindowsurface_vgegl.cpp (modified) (12 diffs)

trunk/src/openvg/qwindowsurface_vgegl.cpp

@@ -178 +178 @@
     } else {
         QVGSharedContext *shared = sharedContext();
-        shared->firstPixmap = pd->next;
+        if (shared)
+           shared->firstPixmap = pd->next;
     }
 }
@@ -226 +227 @@
     context = new QEglContext();
     context->setApi(QEgl::OpenVG);
-    if (!context->openDisplay(device)) {
-        delete context;
-        return 0;
-    }
 
     // Set the swap interval for the display.
     QByteArray interval = qgetenv("QT_VG_SWAP_INTERVAL");
     if (!interval.isEmpty())
-        eglSwapInterval(context->display(), interval.toInt());
+        eglSwapInterval(QEglContext::display(), interval.toInt());
     else
-        eglSwapInterval(context->display(), 1);
+        eglSwapInterval(QEglContext::display(), 1);
 
 #ifdef EGL_RENDERABLE_TYPE
@@ -250 +247 @@
         EGLConfig cfg;
         if (eglChooseConfig
-                    (context->display(), properties, &cfg, 1, &matching) &&
+                    (QEglContext::display(), properties, &cfg, 1, &matching) &&
                 matching > 0) {
             // Check that the selected configuration actually supports OpenVG
@@ -257 +254 @@
             EGLint type = 0;
             eglGetConfigAttrib
-                (context->display(), cfg, EGL_CONFIG_ID, &id);
+                (QEglContext::display(), cfg, EGL_CONFIG_ID, &id);
             eglGetConfigAttrib
-                (context->display(), cfg, EGL_RENDERABLE_TYPE, &type);
+                (QEglContext::display(), cfg, EGL_RENDERABLE_TYPE, &type);
             if (cfgId == id && (type & EGL_OPENVG_BIT) != 0) {
                 context->setConfig(cfg);
@@ -338 +335 @@
     shared->context->doneCurrent();
     if (shared->surface != EGL_NO_SURFACE) {
-        eglDestroySurface(shared->context->display(), shared->surface);
+        eglDestroySurface(QEglContext::display(), shared->surface);
         shared->surface = EGL_NO_SURFACE;
     }
@@ -416 +413 @@
         }
         shared->surface = eglCreatePbufferSurface
-            (shared->context->display(), shared->context->config(), attribs);
+            (QEglContext::display(), shared->context->config(), attribs);
     }
     return shared->surface;
@@ -559 +556 @@
             recreateBackBuffer = false;
             if (backBufferSurface != EGL_NO_SURFACE) {
-                eglDestroySurface(context->display(), backBufferSurface);
+                eglDestroySurface(QEglContext::display(), backBufferSurface);
                 backBufferSurface = EGL_NO_SURFACE;
             }
@@ -572 +569 @@
                 // Create an EGL surface for rendering into the VGImage.
                 backBufferSurface = eglCreatePbufferFromClientBuffer
-                    (context->display(), EGL_OPENVG_IMAGE,
+                    (QEglContext::display(), EGL_OPENVG_IMAGE,
                      (EGLClientBuffer)(backBuffer),
                      context->config(), NULL);
@@ -663 +660 @@
         windowSurface = context->createSurface(widget, &surfaceProps);
         isPaintingActive = false;
+        needToSwap = true;
     }
 #else
@@ -708 +706 @@
         // Did we get a direct to window rendering surface?
         EGLint buffer = 0;
-        if (eglQueryContext(context->display(), context->context(),
+        if (eglQueryContext(QEglContext::display(), context->context(),
                             EGL_RENDER_BUFFER, &buffer) &&
                 buffer == EGL_SINGLE_BUFFER) {
@@ -714 +712 @@
         }
 #endif
-#if !defined(QVG_NO_PRESERVED_SWAP)
-        // Try to force the surface back buffer to preserve its contents.
-        if (needToSwap) {
-            eglGetError();  // Clear error state first.
-            eglSurfaceAttrib(context->display(), surface,
-                             EGL_SWAP_BEHAVIOR, EGL_BUFFER_PRESERVED);
-            if (eglGetError() != EGL_SUCCESS) {
-                qWarning("QVG: could not enable preserved swap");
-            }
-        }
-#endif
         windowSurface = surface;
         isPaintingActive = false;
     }
+
+#if !defined(QVG_NO_PRESERVED_SWAP)
+    // Try to force the surface back buffer to preserve its contents.
+    if (needToSwap) {
+        eglGetError();  // Clear error state first.
+        eglSurfaceAttrib(QEglContext::display(), windowSurface,
+                EGL_SWAP_BEHAVIOR, EGL_BUFFER_PRESERVED);
+        if (eglGetError() != EGL_SUCCESS) {
+            qWarning("QVG: could not enable preserved swap");
+        }
+    }
+#endif
     return context;
 }
@@ -760 +759 @@
 }
 
+bool QVGEGLWindowSurfaceDirect::supportsStaticContents() const
+{
+#if defined(QVG_BUFFER_SCROLLING) && !defined(QVG_NO_PRESERVED_SWAP)
+    return true;
+#else
+    return QVGEGLWindowSurfacePrivate::supportsStaticContents();
+#endif
+}
+
+bool QVGEGLWindowSurfaceDirect::scroll(QWidget *widget, const QRegion& area, int dx, int dy)
+{
+#ifdef QVG_BUFFER_SCROLLING
+    QEglContext *context = ensureContext(widget);
+    if (context) {
+        context->makeCurrent(windowSurface);
+        QRect scrollRect = area.boundingRect();
+        int sx = scrollRect.x();
+        int sy = size.height() - scrollRect.y() - scrollRect.height();
+        vgSeti(VG_SCISSORING, VG_FALSE);
+        vgCopyPixels(sx + dx, sy - dy, sx, sy, scrollRect.width(), scrollRect.height());
+        context->lazyDoneCurrent();
+        return true;
+    }
+#endif
+    return false;
+}
+
 QT_END_NAMESPACE