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LCD drivers: * Automatically optimise horizontal and vertical lines drawn via _drawline(), with debug message to show possible optimisations in the caller. * Get rid of the extra ICODE function declarations by putting the attribute into the definition.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17081 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2008-04-12 07:53:33 +00:00
parent 02eb1d83a7
commit 00ac809cc7
7 changed files with 140 additions and 120 deletions
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13
firmware/drivers/lcd-2bit-vi.c
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@ -39,6 +39,7 @@
#define LCDFN(fn) lcd_ ## fn
#define FBFN(fn) fb_ ## fn
#define LCDM(ma) LCD_ ## ma
#define LCDNAME "lcd_"
#define MAIN_LCD
#endif
@ -476,7 +477,19 @@ void LCDFN(drawline)(int x1, int y1, int x2, int y2)
LCDFN(pixelfunc_type) *pfunc = LCDFN(pixelfuncs)[current_vp->drawmode];
deltax = abs(x2 - x1);
if (deltax == 0)
{
DEBUGF(LCDNAME "drawline() called for vertical line - optimisation.\n");
LCDFN(vline)(x1, y1, y2);
return;
}
deltay = abs(y2 - y1);
if (deltay == 0)
{
DEBUGF(LCDNAME "drawline() called for horizontal line - optimisation.\n");
LCDFN(hline)(x1, x2, y1);
return;
}
xinc2 = 1;
yinc2 = 1;