Make QVGCompositionHelper::blitWindow() more generic

Previously, the composition helper would use the VG window surface
private structure to get the VGImage to blit.  This change passes
the VGImage and size values in directly so that the composition
helper can also be used to blit GL surfaces that have been converted
into a VGImage via an EGLImage.

Reviewed-by: Tom Cooksey

2 files changed, 4 insertions, 7 deletions

diff --git a/src/openvg/qpaintengine_vg.cpp b/src/openvg/qpaintengine_vg.cpp
index fda4b10..ba97d4f 100644
--- a/src/openvg/qpaintengine_vg.cpp
+++ b/src/openvg/qpaintengine_vg.cpp
@@ -3459,14 +3459,11 @@ void QVGCompositionHelper::endCompositing()
 }
 
 void QVGCompositionHelper::blitWindow
-    (QVGEGLWindowSurfacePrivate *surface, const QRect& rect,
-     const QPoint& topLeft, int opacity)
+    (VGImage image, const QSize& imageSize,
+     const QRect& rect, const QPoint& topLeft, int opacity)
 {
-    // Get the VGImage that is acting as a back buffer for the window.
-    VGImage image = surface->surfaceImage();
     if (image == VG_INVALID_HANDLE)
         return;
-    QSize imageSize = surface->surfaceSize();
 
     // Determine which sub rectangle of the window to draw.
     QRect sr = rect.translated(-topLeft);
diff --git a/src/openvg/qvgcompositionhelper_p.h b/src/openvg/qvgcompositionhelper_p.h
index 3afe31e..ed24e73 100644
--- a/src/openvg/qvgcompositionhelper_p.h
+++ b/src/openvg/qvgcompositionhelper_p.h
@@ -71,8 +71,8 @@ public:
     void startCompositing(const QSize& screenSize);
     void endCompositing();
 
-    void blitWindow(QVGEGLWindowSurfacePrivate *surface, const QRect& rect,
-                    const QPoint& topLeft, int opacity);
+    void blitWindow(VGImage image, const QSize& imageSize,
+                    const QRect& rect, const QPoint& topLeft, int opacity);
     void fillBackground(const QRegion& region, const QBrush& brush);
     void drawCursorPixmap(const QPixmap& pixmap, const QPoint& offset);
     void setScissor(const QRegion& region);