Enablers for shared graphics cache in raster paint engine

Required changes for using shared graphics cache for distance field
raster glyph rendering. Most of the logic is in platform plugins.

Platform plugins should implement
QPlatformIntegration::createImagePaintEngine() to create a subclass
of QRasterEngine.

Change-Id: Icf0a396e722e43b4caa2c1849aae38753cde38f1
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>

2 files changed, 3 insertions, 5 deletions

diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
index 29dab0e1e0..ca32adcd6f 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
@@ -1432,8 +1432,7 @@ void QGL2PaintEngineEx::drawStaticTextItem(QStaticTextItem *textItem)
 
     // don't try to cache huge fonts or vastly transformed fonts
     QFontEngine *fontEngine = textItem->fontEngine();
-    const qreal pixelSize = fontEngine->fontDef.pixelSize;
-    if (shouldDrawCachedGlyphs(pixelSize, s->matrix) || det < 0.25f || det > 4.f) {
+    if (shouldDrawCachedGlyphs(fontEngine, s->matrix) || det < 0.25f || det > 4.f) {
         QFontEngineGlyphCache::Type glyphType = fontEngine->glyphFormat >= 0
                                                 ? QFontEngineGlyphCache::Type(textItem->fontEngine()->glyphFormat)
                                                 : d->glyphCacheType;
@@ -1491,8 +1490,7 @@ void QGL2PaintEngineEx::drawTextItem(const QPointF &p, const QTextItem &textItem
     bool drawCached = txtype < QTransform::TxProject;
 
     // don't try to cache huge fonts or vastly transformed fonts
-    const qreal pixelSize = ti.fontEngine->fontDef.pixelSize;
-    if (shouldDrawCachedGlyphs(pixelSize, s->matrix) || det < 0.25f || det > 4.f)
+    if (shouldDrawCachedGlyphs(ti.fontEngine, s->matrix) || det < 0.25f || det > 4.f)
         drawCached = false;
 
     QFontEngineGlyphCache::Type glyphType = ti.fontEngine->glyphFormat >= 0
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
index c5d3417555..8eeee334f5 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
@@ -155,7 +155,7 @@ public:
     void setRenderTextActive(bool);
 
     bool isNativePaintingActive() const;
-    bool supportsTransformations(qreal, const QTransform &) const { return true; }
+    bool supportsTransformations(QFontEngine *, const QTransform &) const { return true; }
 private:
     Q_DISABLE_COPY(QGL2PaintEngineEx)
 };