Merge branch '4.6' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.6-integration

* '4.6' of scm.dev.nokia.troll.no:qt/oslo-staging-2:
  Fix antialiasing with transformed text in OpenGL2 paint engine

5 files changed, 13 insertions, 4 deletions

diff --git a/src/gui/painting/qtextureglyphcache.cpp b/src/gui/painting/qtextureglyphcache.cpp
index 7b7f3250fc..b65323fb82 100644
--- a/src/gui/painting/qtextureglyphcache.cpp
+++ b/src/gui/painting/qtextureglyphcache.cpp
@@ -66,6 +66,7 @@ void QTextureGlyphCache::populate(const QTextItemInt &ti,
 
     m_current_textitem = &ti;
     const int margin = glyphMargin();
+    const int paddingDoubled = glyphPadding() * 2;
 
     QHash<glyph_t, Coord> listItemCoordinates;
     int rowHeight = 0;
@@ -114,7 +115,7 @@ void QTextureGlyphCache::populate(const QTextItemInt &ti,
     if (listItemCoordinates.isEmpty())
         return;
 
-    rowHeight += margin * 2;
+    rowHeight += margin * 2 + paddingDoubled;
     if (isNull())
         createCache(QT_DEFAULT_TEXTURE_GLYPH_CACHE_WIDTH, rowHeight);
 
@@ -126,7 +127,7 @@ void QTextureGlyphCache::populate(const QTextItemInt &ti,
         if (m_cx + c.w > m_w) {
             // no room on the current line, start new glyph strip
             m_cx = 0;
-            m_cy = m_h;
+            m_cy = m_h + paddingDoubled;
         }
         if (m_cy + c.h > m_h) {
             int new_height;
@@ -153,7 +154,7 @@ void QTextureGlyphCache::populate(const QTextItemInt &ti,
         } else {
             // for the Mono case, glyph_width is 8-bit aligned,
             // and therefore so will m_cx
-            m_cx += c.w;
+            m_cx += c.w + paddingDoubled;
         }
         ++iter;
     }
diff --git a/src/gui/painting/qtextureglyphcache_p.h b/src/gui/painting/qtextureglyphcache_p.h
index d347e618bb..ebb7d6b8f2 100644
--- a/src/gui/painting/qtextureglyphcache_p.h
+++ b/src/gui/painting/qtextureglyphcache_p.h
@@ -97,6 +97,7 @@ public:
     virtual void createTextureData(int width, int height) = 0;
     virtual void resizeTextureData(int width, int height) = 0;
     virtual int glyphMargin() const { return 0; }
+    virtual int glyphPadding() const { return 0; }
 
     virtual void fillTexture(const Coord &coord, glyph_t glyph) = 0;
 
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
index 828849df83..237b3ab3d9 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
@@ -1390,7 +1390,8 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(const QPointF &p, QFontEngineGly
 
     glActiveTexture(GL_TEXTURE0 + QT_MASK_TEXTURE_UNIT);
     glBindTexture(GL_TEXTURE_2D, cache->texture());
-    updateTextureFilter(GL_TEXTURE_2D, GL_REPEAT, false);
+    QOpenGL2PaintEngineState *s = q->state();
+    updateTextureFilter(GL_TEXTURE_2D, GL_REPEAT, s->matrix.type() > QTransform::TxTranslate);
 
     shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::MaskTexture), QT_MASK_TEXTURE_UNIT);
     glDrawArrays(GL_TRIANGLES, 0, 6 * glyphs.size());
diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp
index 6cb76ee846..994c1c94f0 100644
--- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp
+++ b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp
@@ -246,4 +246,9 @@ int QGLTextureGlyphCache::glyphMargin() const
 #endif
 }
 
+int QGLTextureGlyphCache::glyphPadding() const
+{
+    return 1;
+}
+
 QT_END_NAMESPACE
diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h
index 2a8a7824ae..04731b133e 100644
--- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h
+++ b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h
@@ -73,6 +73,7 @@ public:
     virtual void resizeTextureData(int width, int height);
     virtual void fillTexture(const Coord &c, glyph_t glyph);
     virtual int glyphMargin() const;
+    virtual int glyphPadding() const;
 
     inline GLuint texture() const { return m_texture; }