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Implemented support for TrueColor OSD

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This commit is contained in:
Klaus Schmidinger
2011-02-20 15:12:56 +01:00
parent 343071cc6a
commit 6c7089afd2
11 changed files with 2135 additions and 85 deletions
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60
font.c
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@@ -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 -----------------------------------------------------------------