Fix for font outlines. See below:

* Outlines were hinted, causing deformations to the actual clean outline. Outlines are now unhinted.
* Quadratic curves were converted to cubic curves. This unnecessarily increases complexity of the outlines and introduces extra vertices. If triangulated, these extra vertices cause extra triangles, etc. There is no need to convert quadratic curves, as they are natively supported by the Path2d class.

Author: paulhoux

src/cinder/Font.cpp

@@ -653,7 +653,7 @@ Shape2d Font::getGlyphShape( Glyph glyphIndex ) const
 	static const MAT2 matrix = { { 0, 1 }, { 0, 0 }, { 0, 0 }, { 0, -1 } };
 	GLYPHMETRICS metrics;
 	DWORD bytesGlyph = ::GetGlyphOutlineW( FontManager::instance()->getFontDc(), glyphIndex,
-							GGO_NATIVE | GGO_GLYPH_INDEX, &metrics, 0, NULL, &matrix);
+							GGO_NATIVE | GGO_GLYPH_INDEX | GGO_UNHINTED, &metrics, 0, NULL, &matrix);
 
     if( bytesGlyph == GDI_ERROR )
 		throw FontGlyphFailureExc();
@@ -665,7 +665,7 @@ Shape2d Font::getGlyphShape( Glyph glyphIndex ) const
     }
 
     if( ::GetGlyphOutlineW( FontManager::instance()->getFontDc(), glyphIndex,
-			  GGO_NATIVE | GGO_GLYPH_INDEX, &metrics, bytesGlyph, buffer.get(), &matrix) == GDI_ERROR ) {
+			  GGO_NATIVE | GGO_GLYPH_INDEX | GGO_UNHINTED, &metrics, bytesGlyph, buffer.get(), &matrix) == GDI_ERROR ) {
 		throw FontGlyphFailureExc();
     }
 
@@ -689,19 +689,22 @@ Shape2d Font::getGlyphShape( Glyph glyphIndex ) const
 				break;
 				case TT_PRIM_QSPLINE:
 					for( int i = 0; i < curve->cpfx - 1; i++ ) {
-						vec2 p1 = resultShape.getCurrentPoint(), p2;
-						vec2 c = msw::toVec2( points[i] ), c1, c2;
+						vec2 c = msw::toVec2( points[i] );
+						vec2 p2;
 						if( i + 1 == curve->cpfx - 1 ) {
 							p2 = msw::toVec2( points[i + 1] );
 						}
 						else {
 							// records with more than one curve use interpolation for control points, per http://support.microsoft.com/kb/q87115/
 							p2 = ( c + msw::toVec2( points[i + 1] ) ) / 2.0f;
 						}
-	
-						c1 = 2.0f * c / 3.0f + p1 / 3.0f;
-						c2 = 2.0f * c / 3.0f + p2 / 3.0f;
-						resultShape.curveTo( c1, c2, p2 );
+
+						//vec2 p1 = resultShape.getCurrentPoint();
+						//vec2 c1 = 2.0f * c / 3.0f + p1 / 3.0f;
+						//vec2 c2 = 2.0f * c / 3.0f + p2 / 3.0f;
+						//resultShape.curveTo( c1, c2, p2 );
+
+						resultShape.quadTo( c, p2 );
 					}
 				break;
 				case TT_PRIM_CSPLINE: