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-rw-r--r--src/openvg/qpaintengine_vg.cpp35
-rw-r--r--src/openvg/qwindowsurface_vgegl.cpp3
2 files changed, 33 insertions, 5 deletions
diff --git a/src/openvg/qpaintengine_vg.cpp b/src/openvg/qpaintengine_vg.cpp
index a15f0c3..22cbbf5 100644
--- a/src/openvg/qpaintengine_vg.cpp
+++ b/src/openvg/qpaintengine_vg.cpp
@@ -2201,6 +2201,12 @@ void QVGPaintEngine::updateScissor()
#if defined(QVG_SCISSOR_CLIP)
// Using the scissor to do clipping, so combine the systemClip
// with the current painting clipRegion.
+
+ if (d->maskValid) {
+ vgSeti(VG_MASKING, VG_FALSE);
+ d->maskValid = false;
+ }
+
QVGPainterState *s = state();
if (s->clipEnabled) {
if (region.isEmpty())
@@ -2250,8 +2256,33 @@ void QVGPaintEngine::updateScissor()
QVector<QRect> rects = region.rects();
int count = rects.count();
- if (count > d->maxScissorRects)
- count = d->maxScissorRects;
+ if (count > d->maxScissorRects) {
+#if !defined(QVG_SCISSOR_CLIP)
+ count = d->maxScissorRects;
+#else
+ // Use masking
+ int width = paintDevice()->width();
+ int height = paintDevice()->height();
+ vgMask(VG_INVALID_HANDLE, VG_CLEAR_MASK,
+ 0, 0, width, height);
+ for (int i = 0; i < rects.size(); ++i) {
+ vgMask(VG_INVALID_HANDLE, VG_FILL_MASK,
+ rects[i].x(), height - rects[i].y() - rects[i].height(),
+ rects[i].width(), rects[i].height());
+ }
+
+ vgSeti(VG_SCISSORING, VG_FALSE);
+ vgSeti(VG_MASKING, VG_TRUE);
+ d->maskValid = true;
+ d->maskIsSet = false;
+ d->scissorMask = false;
+ d->scissorActive = false;
+ d->scissorDirty = false;
+ d->scissorRegion = region;
+ return;
+#endif
+ }
+
QVarLengthArray<VGint> params(count * 4);
int height = paintDevice()->height();
for (int i = 0; i < count; ++i) {
diff --git a/src/openvg/qwindowsurface_vgegl.cpp b/src/openvg/qwindowsurface_vgegl.cpp
index c6db869..ca80886 100644
--- a/src/openvg/qwindowsurface_vgegl.cpp
+++ b/src/openvg/qwindowsurface_vgegl.cpp
@@ -267,10 +267,7 @@ static QEglContext *createContext(QPaintDevice *device)
int redSize = configProps.value(EGL_RED_SIZE);
if (redSize == EGL_DONT_CARE || redSize == 0)
configProps.setPixelFormat(QImage::Format_ARGB32); // XXX
-#ifndef QVG_SCISSOR_CLIP
- // If we are using the mask to clip, then explicitly request a mask.
configProps.setValue(EGL_ALPHA_MASK_SIZE, 1);
-#endif
#ifdef EGL_VG_ALPHA_FORMAT_PRE_BIT
configProps.setValue(EGL_SURFACE_TYPE, EGL_WINDOW_BIT |
EGL_VG_ALPHA_FORMAT_PRE_BIT);