Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2:
  Fixed compile warning on Windows.
  Fixed painter path drawing on FBO without stencil buffer.
  Fixed color of cosmetic pens when printing under Windows.
  Fixed infinite loop when loading jpeg without EOI from memory.

5 files changed, 40 insertions, 13 deletions

diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index c166c30..54fdf3f 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -4751,7 +4751,7 @@ void QGraphicsScenePrivate::drawSubtreeRecursive(QGraphicsItem *item, QPainter *
         ENSURE_TRANSFORM_PTR
         QRect viewBoundingRect = translateOnlyTransform ? brect.translated(transformPtr->dx(), transformPtr->dy()).toAlignedRect()
                                                         : transformPtr->mapRect(brect).toAlignedRect();
-        viewBoundingRect.adjust(-rectAdjust, -rectAdjust, rectAdjust, rectAdjust);
+        viewBoundingRect.adjust(-int(rectAdjust), -int(rectAdjust), rectAdjust, rectAdjust);
         if (widget)
             item->d_ptr->paintedViewBoundingRects.insert(widget, viewBoundingRect);
         drawItem = exposedRegion ? exposedRegion->intersects(viewBoundingRect)
diff --git a/src/gui/image/qjpeghandler.cpp b/src/gui/image/qjpeghandler.cpp
index eda5efb..e685694 100644
--- a/src/gui/image/qjpeghandler.cpp
+++ b/src/gui/image/qjpeghandler.cpp
@@ -134,15 +134,18 @@ static void qt_init_source(j_decompress_ptr)
 static boolean qt_fill_input_buffer(j_decompress_ptr cinfo)
 {
     my_jpeg_source_mgr* src = (my_jpeg_source_mgr*)cinfo->src;
+    qint64 num_read = 0;
     if (src->memDevice) {
         src->next_input_byte = (const JOCTET *)(src->memDevice->data().constData() + src->memDevice->pos());
-        src->bytes_in_buffer = (size_t)(src->memDevice->data().size() - src->memDevice->pos());
-        return true;
+        num_read = src->memDevice->data().size() - src->memDevice->pos();
+        src->device->seek(src->memDevice->data().size());
+    } else {
+        src->next_input_byte = src->buffer;
+        num_read = src->device->read((char*)src->buffer, max_buf);
     }
-    src->next_input_byte = src->buffer;
-    int num_read = src->device->read((char*)src->buffer, max_buf);
     if (num_read <= 0) {
         // Insert a fake EOI marker - as per jpeglib recommendation
+        src->next_input_byte = src->buffer;
         src->buffer[0] = (JOCTET) 0xFF;
         src->buffer[1] = (JOCTET) JPEG_EOI;
         src->bytes_in_buffer = 2;
@@ -183,13 +186,7 @@ static void qt_term_source(j_decompress_ptr cinfo)
 {
     my_jpeg_source_mgr* src = (my_jpeg_source_mgr*)cinfo->src;
     if (!src->device->isSequential())
-    {
-        // read() isn't used for memDevice, so seek past everything that was used
-        if (src->memDevice)
-            src->device->seek(src->device->pos() + (src->memDevice->data().size() - src->memDevice->pos() - src->bytes_in_buffer));
-        else
-            src->device->seek(src->device->pos() - src->bytes_in_buffer);
-    }
+        src->device->seek(src->device->pos() - src->bytes_in_buffer);
 }
 
 #if defined(Q_C_CALLBACKS)
diff --git a/src/gui/painting/qprintengine_win.cpp b/src/gui/painting/qprintengine_win.cpp
index dd4de99..afae0a5 100644
--- a/src/gui/painting/qprintengine_win.cpp
+++ b/src/gui/painting/qprintengine_win.cpp
@@ -851,7 +851,7 @@ void QWin32PrintEnginePrivate::strokePath_dev(const QPainterPath &path, const QC
 
     HPEN pen = ExtCreatePen(((penWidth == 0) ? PS_COSMETIC : PS_GEOMETRIC)
                             | PS_SOLID | capStyle | joinStyle,
-                            penWidth, &brush, 0, 0);
+                            (penWidth == 0) ? 1 : penWidth, &brush, 0, 0);
 
     HGDIOBJ old_pen = SelectObject(hdc, pen);
     StrokePath(hdc);
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
index aa217f6..2347e66 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
@@ -866,6 +866,32 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path)
             if (do_vectorpath_cache)
                 path.makeCacheable();
 
+            if (!device->format().stencil()) {
+                // If there is no stencil buffer, triangulate the path instead.
+
+                QRectF bbox = path.controlPointRect();
+                // If the path doesn't fit within these limits, it is possible that the triangulation will fail.
+                bool withinLimits = (bbox.left() > -0x8000 * inverseScale)
+                                  && (bbox.right() < 0x8000 * inverseScale)
+                                  && (bbox.top() > -0x8000 * inverseScale)
+                                  && (bbox.bottom() < 0x8000 * inverseScale);
+                if (withinLimits) {
+                    QTriangleSet polys = qTriangulate(path, QTransform().scale(1 / inverseScale, 1 / inverseScale));
+
+                    QVarLengthArray<float> vertices(polys.vertices.size());
+                    for (int i = 0; i < polys.vertices.size(); ++i)
+                        vertices[i] = float(inverseScale * polys.vertices.at(i));
+
+                    prepareForDraw(currentBrush.isOpaque());
+                    setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, vertices.constData());
+                    glDrawElements(GL_TRIANGLES, polys.indices.size(), GL_UNSIGNED_INT, polys.indices.constData());
+                } else {
+                    // We can't handle big, concave painter paths with OpenGL without stencil buffer.
+                    qWarning("Painter path exceeds +/-32767 pixels.");
+                }
+                return;
+            }
+
             // The path is too complicated & needs the stencil technique
             vertexCoordinateArray.clear();
             vertexCoordinateArray.addPath(path, inverseScale, false);
diff --git a/src/opengl/qglframebufferobject.cpp b/src/opengl/qglframebufferobject.cpp
index 9b8a3d1..adbba85 100644
--- a/src/opengl/qglframebufferobject.cpp
+++ b/src/opengl/qglframebufferobject.cpp
@@ -324,6 +324,10 @@ void QGLFBOGLPaintDevice::setFBO(QGLFramebufferObject* f,
         fboFormat.setStencil(true);
     } else if (attachment == QGLFramebufferObject::Depth) {
         fboFormat.setDepth(true);
+        fboFormat.setStencil(false);
+    } else {
+        fboFormat.setDepth(false);
+        fboFormat.setStencil(false);
     }
 
     GLenum format = f->format().internalTextureFormat();