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| author | Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com> | 2010-04-12 12:03:30 (GMT) |
|---|---|---|
| committer | Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com> | 2010-04-12 12:22:32 (GMT) |
| commit | 67e8e5baeec38d592596f259894e6dda420728ea (patch) | |
| tree | 954e66b73a5eb53ab4225d75bec5d2018cf11707 /src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp | |
| parent | 97f5d3f102c6b3167872c5ab1c6e0a215cb2f1c1 (diff) | |
| download | Qt-67e8e5baeec38d592596f259894e6dda420728ea.zip Qt-67e8e5baeec38d592596f259894e6dda420728ea.tar.gz Qt-67e8e5baeec38d592596f259894e6dda420728ea.tar.bz2 | |
Fix antialiasing with transformed text in OpenGL2 paint engine
Since the paint engine now transforms the prerendered glyphs instead of
rendering transformed glyphs as paths, we need to turn on texture
filtering to avoid antialiasing artifacts. In order to do this, we also
need to pad the glyphs in the glyph cache, otherwise you will get
artifacts when sampling the area around the glyph's bounding rect (where
there might be other glyphs.) This done by adding a glyphPadding()
function to the cache which returns the number of pixels to pad between
each glyph.
Task-number: QTBUG-9706
Reviewed-by: Tom
Diffstat (limited to 'src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp')
| -rw-r--r-- | src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp index 6cb76ee..994c1c9 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 |