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authorKlaus Schmidinger <vdr@tvdr.de>2011-02-20 15:12:56 +0100
committerKlaus Schmidinger <vdr@tvdr.de>2011-02-20 15:12:56 +0100
commit6c7089afd257df3a9033a5bd2f205b8f03eccfaf (patch)
treed146c9d9c4b37d52b966607d7c1ef9e3b85dcf0f /font.c
parent343071cc6ab69169312ae04a7888cd55a79395d0 (diff)
downloadvdr-6c7089afd257df3a9033a5bd2f205b8f03eccfaf.tar.gz
vdr-6c7089afd257df3a9033a5bd2f205b8f03eccfaf.tar.bz2
Implemented support for TrueColor OSD
Diffstat (limited to 'font.c')
-rw-r--r--font.c60
1 files changed, 59 insertions, 1 deletions
diff --git a/font.c b/font.c
index 4ff4017d..227dd63f 100644
--- a/font.c
+++ b/font.c
@@ -6,7 +6,7 @@
*
* BiDi support by Osama Alrawab <alrawab@hotmail.com> @2008 Tripoli-Libya.
*
- * $Id: font.c 2.5 2010/09/19 11:49:19 kls Exp $
+ * $Id: font.c 2.6 2011/02/20 14:15:38 kls Exp $
*/
#include "font.h"
@@ -118,6 +118,7 @@ public:
virtual int Width(const char *s) const;
virtual int Height(void) const { return height; }
virtual void DrawText(cBitmap *Bitmap, int x, int y, const char *s, tColor ColorFg, tColor ColorBg, int Width) const;
+ virtual void DrawText(cPixmap *Pixmap, int x, int y, const char *s, tColor ColorFg, tColor ColorBg, int Width) const;
};
cFreetypeFont::cFreetypeFont(const char *Name, int CharHeight, int CharWidth)
@@ -329,6 +330,62 @@ void cFreetypeFont::DrawText(cBitmap *Bitmap, int x, int y, const char *s, tColo
}
}
+void cFreetypeFont::DrawText(cPixmap *Pixmap, int x, int y, const char *s, tColor ColorFg, tColor ColorBg, int Width) const
+{
+ if (s && height) { // checking height to make sure we actually have a valid font
+#ifdef BIDI
+ cString bs = Bidi(s);
+ s = bs;
+#endif
+ bool AntiAliased = Setup.AntiAlias;
+ bool TransparentBackground = ColorBg == clrTransparent;
+ uint prevSym = 0;
+ while (*s) {
+ int sl = Utf8CharLen(s);
+ uint sym = Utf8CharGet(s, sl);
+ s += sl;
+ cGlyph *g = Glyph(sym, AntiAliased);
+ if (!g)
+ continue;
+ int kerning = Kerning(g, prevSym);
+ prevSym = sym;
+ uchar *buffer = g->Bitmap();
+ int symWidth = g->Width();
+ if (Width && x + symWidth + g->Left() + kerning - 1 > Width)
+ break; // we don't draw partial characters
+ if (x + symWidth + g->Left() + kerning > 0) {
+ for (int row = 0; row < g->Rows(); row++) {
+ for (int pitch = 0; pitch < g->Pitch(); pitch++) {
+ uchar bt = *(buffer + (row * g->Pitch() + pitch));
+ if (AntiAliased) {
+ if (bt > 0x00) {
+ tColor bg;
+ if (bt == 0xFF || TransparentBackground)
+ bg = ColorFg;
+ else {
+ bg = AlphaBlend(ColorFg, ColorBg, bt);
+ bt = ALPHA_OPAQUE;
+ }
+ Pixmap->DrawPixel(cPoint(x + pitch + g->Left() + kerning, y + row + (height - Bottom() - g->Top())), bg, bt);
+ }
+ }
+ else { //monochrome rendering
+ for (int col = 0; col < 8 && col + pitch * 8 <= symWidth; col++) {
+ if (bt & 0x80)
+ Pixmap->DrawPixel(cPoint(x + col + pitch * 8 + g->Left() + kerning, y + row + (height - Bottom() - g->Top())), ColorFg);
+ bt <<= 1;
+ }
+ }
+ }
+ }
+ }
+ x += g->AdvanceX() + kerning;
+ if (x > Pixmap->DrawPort().Width() - 1)
+ break;
+ }
+ }
+}
+
// --- cDummyFont ------------------------------------------------------------
// A dummy font, in case there are no fonts installed:
@@ -339,6 +396,7 @@ public:
virtual int Width(const char *s) const { return 50; }
virtual int Height(void) const { return 20; }
virtual void DrawText(cBitmap *Bitmap, int x, int y, const char *s, tColor ColorFg, tColor ColorBg, int Width) const {}
+ virtual void DrawText(cPixmap *Pixmap, int x, int y, const char *s, tColor ColorFg, tColor ColorBg, int Width) const {};
};
// --- cFont -----------------------------------------------------------------