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authorBea Lam <bea.lam@nokia.com>2009-10-21 00:43:19 (GMT)
committerBea Lam <bea.lam@nokia.com>2009-10-21 00:43:19 (GMT)
commitf6b1582d726f97d8be4b30f0f6da2350220f27c5 (patch)
tree64bcea1b8b3cc8f94073a9e83b36b2b40ad990e8 /src/gui/text/qfontengine_mac.mm
parent110c58a20f3158143d83ebea4f2ece4f7925f913 (diff)
parent7bd7f5ec6eb520b7d9940a24817b17132d9ed6a2 (diff)
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Merge branch 'kinetic-declarativeui' of git@scm.dev.nokia.troll.no:qt/kinetic into kinetic-declarativeui
Diffstat (limited to 'src/gui/text/qfontengine_mac.mm')
-rw-r--r--src/gui/text/qfontengine_mac.mm69
1 files changed, 49 insertions, 20 deletions
diff --git a/src/gui/text/qfontengine_mac.mm b/src/gui/text/qfontengine_mac.mm
index 40db7b4..d11083f 100644
--- a/src/gui/text/qfontengine_mac.mm
+++ b/src/gui/text/qfontengine_mac.mm
@@ -119,6 +119,28 @@ OSStatus QMacFontPath::closePath(void *data)
}
+
+void qmacfontengine_gamma_correct(QImage *image)
+{
+ extern uchar qt_pow_rgb_gamma[256];
+
+ // gamma correct the pixels back to linear color space...
+ int h = image->height();
+ int w = image->width();
+
+ for (int y=0; y<h; ++y) {
+ uint *pixels = (uint *) image->scanLine(y);
+ for (int x=0; x<w; ++x) {
+ uint p = pixels[x];
+ uint r = qt_pow_rgb_gamma[qRed(p)];
+ uint g = qt_pow_rgb_gamma[qGreen(p)];
+ uint b = qt_pow_rgb_gamma[qBlue(p)];
+ pixels[x] = (r << 16) | (g << 8) | b | 0xff000000;
+ }
+ }
+}
+
+
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
QCoreTextFontEngineMulti::QCoreTextFontEngineMulti(const ATSFontFamilyRef &, const ATSFontRef &atsFontRef, const QFontDef &fontDef, bool kerning)
: QFontEngineMulti(0)
@@ -138,9 +160,10 @@ QCoreTextFontEngineMulti::QCoreTextFontEngineMulti(const ATSFontFamilyRef &, con
QCFString name;
ATSFontGetName(atsFontRef, kATSOptionFlagsDefault, &name);
- QCFType<CTFontDescriptorRef> descriptor = CTFontDescriptorCreateWithNameAndSize(name, fontDef.pointSize);
- QCFType<CTFontRef> baseFont = CTFontCreateWithFontDescriptor(descriptor, fontDef.pointSize, 0);
- ctfont = CTFontCreateCopyWithSymbolicTraits(baseFont, fontDef.pointSize, 0, symbolicTraits, symbolicTraits);
+
+ QCFType<CTFontDescriptorRef> descriptor = CTFontDescriptorCreateWithNameAndSize(name, fontDef.pixelSize);
+ QCFType<CTFontRef> baseFont = CTFontCreateWithFontDescriptor(descriptor, fontDef.pixelSize, 0);
+ ctfont = CTFontCreateCopyWithSymbolicTraits(baseFont, fontDef.pixelSize, 0, symbolicTraits, symbolicTraits);
// CTFontCreateCopyWithSymbolicTraits returns NULL if we ask for a trait that does
// not exist for the given font. (for example italic)
@@ -533,7 +556,7 @@ void QCoreTextFontEngine::addGlyphsToPath(glyph_t *glyphs, QFixedPoint *position
}
}
-QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph)
+QImage QCoreTextFontEngine::imageForGlyph(glyph_t glyph, int margin, bool aa)
{
const glyph_metrics_t br = boundingBox(glyph);
QImage im(qRound(br.width)+2, qRound(br.height)+2, QImage::Format_RGB32);
@@ -548,9 +571,10 @@ QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph)
8, im.bytesPerLine(), colorspace,
cgflags);
CGContextSetFontSize(ctx, fontDef.pixelSize);
- CGContextSetShouldAntialias(ctx, fontDef.pointSize > qt_antialiasing_threshold
- && !(fontDef.styleStrategy & QFont::NoAntialias));
- CGContextSetShouldSmoothFonts(ctx, false);
+ CGContextSetShouldAntialias(ctx, aa ||
+ (fontDef.pointSize > qt_antialiasing_threshold
+ && !(fontDef.styleStrategy & QFont::NoAntialias)));
+ CGContextSetShouldSmoothFonts(ctx, aa);
CGAffineTransform oldTextMatrix = CGContextGetTextMatrix(ctx);
CGAffineTransform cgMatrix = CGAffineTransformMake(1, 0, 0, 1, 0, 0);
@@ -585,6 +609,13 @@ QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph)
CGContextRelease(ctx);
+ return im;
+}
+
+QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph)
+{
+ QImage im = imageForGlyph(glyph, 0, false);
+
QImage indexed(im.width(), im.height(), QImage::Format_Indexed8);
QVector<QRgb> colors(256);
for (int i=0; i<256; ++i)
@@ -604,6 +635,16 @@ QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph)
return indexed;
}
+QImage QCoreTextFontEngine::alphaRGBMapForGlyph(glyph_t glyph, int margin, const QTransform &x)
+{
+ if (x.type() >= QTransform::TxScale)
+ return QFontEngine::alphaRGBMapForGlyph(glyph, margin, x);
+
+ QImage im = imageForGlyph(glyph, margin, true);
+ qmacfontengine_gamma_correct(&im);
+ return im;
+}
+
void QCoreTextFontEngine::recalcAdvances(int numGlyphs, QGlyphLayout *glyphs, QTextEngine::ShaperFlags flags) const
{
Q_ASSERT(false);
@@ -1504,19 +1545,7 @@ QImage QFontEngineMac::alphaRGBMapForGlyph(glyph_t glyph, int margin, const QTra
im = im.transformed(t);
}
- extern uchar qt_pow_rgb_gamma[256];
-
- // gamma correct the pixels back to linear color space...
- for (int y=0; y<im.height(); ++y) {
- uint *pixels = (uint *) im.scanLine(y);
- for (int x=0; x<im.width(); ++x) {
- uint p = pixels[x];
- uint r = qt_pow_rgb_gamma[qRed(p)];
- uint g = qt_pow_rgb_gamma[qGreen(p)];
- uint b = qt_pow_rgb_gamma[qBlue(p)];
- pixels[x] = (r << 16) | (g << 8) | b | 0xff000000;
- }
- }
+ qmacfontengine_gamma_correct(&im);
return im;
}