pandory500/SDL-mirror
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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40315
This commit is contained in:
Sam Lantinga 2002-03-22 18:11:56 +00:00
parent 74c1e3caa4
commit 42e7ceb763
2 changed files with 51 additions and 3 deletions
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2
README.MiNT
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@ -110,4 +110,4 @@ SDL_JOYSTICK_ATARI:
--
Patrice Mandin <pmandin@caramail.com>
http://www.multimania.com/pmandin
http://membres.lycos.fr/pmandin/

50
src/video/xbios/SDL_xbios.c
View file

@ -622,7 +622,55 @@ static void XBIOS_UpdateRects(_THIS, int numrects, SDL_Rect *rects)
surface = this->screen;
XBIOS_FlipHWSurface(this, surface);
if ((surface->format->BitsPerPixel) == 8) {
void *destscr;
int destx;
int i;
/* Center on destination screen */
destscr = XBIOS_screens[XBIOS_fbnum];
destscr += XBIOS_pitch * ((XBIOS_height - surface->h) >> 1);
destx = (XBIOS_width - surface->w) >> 1;
destx &= ~15;
destscr += destx;
for (i=0;i<numrects;i++) {
void *source,*destination;
int x1,x2;
x1 = rects[i].x & ~15;
x2 = ((rects[i].x+rects[i].w) | 15) +1;
source = surface->pixels;
source += surface->pitch * rects[i].y;
source += x1;
destination = destscr;
destination += XBIOS_pitch * rects[i].y;
destination += x1;
/* Convert chunky to planar screen */
Atari_C2pConvert(
source,
destination,
x2-x1,
rects[i].h,
XBIOS_doubleline,
surface->pitch,
XBIOS_pitch
);
}
}
Setscreen(-1,XBIOS_screens[XBIOS_fbnum],-1);
Vsync();
if ((surface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
XBIOS_fbnum ^= 1;
if ((surface->format->BitsPerPixel) > 8) {
surface->pixels=XBIOS_screens[XBIOS_fbnum];
}
}
}
static int XBIOS_FlipHWSurface(_THIS, SDL_Surface *surface)