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Merge update rects that are the same dimensions on subsequent lines --

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seems faster, but my testing hasn't been rigorous.
This commit is contained in:
William McBrine
2007-06-17 20:37:29 +00:00
parent b68159f49b
commit b528d25d0b
1 changed files with 14 additions and 7 deletions
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21
sdl1/pdcdisp.c
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@@ -13,7 +13,7 @@
#include "pdcsdl.h"
RCSID("$Id: pdcdisp.c,v 1.14 2007/06/17 19:30:42 wmcbrine Exp $")
RCSID("$Id: pdcdisp.c,v 1.15 2007/06/17 20:37:29 wmcbrine Exp $")
#include <stdlib.h>
#include <string.h>
@@ -186,7 +186,7 @@ static void _highlight(SDL_Rect *src, SDL_Rect *dest, chtype oldch)
void PDC_transform_line(int lineno, int x, int len, const chtype *srcp)
{
SDL_Rect src, dest;
SDL_Rect src, dest, lastrect;
chtype oldch = 0;
int j;
@@ -200,13 +200,20 @@ void PDC_transform_line(int lineno, int x, int len, const chtype *srcp)
dest.y = pdc_fheight * lineno + pdc_yoffset;
dest.x = pdc_fwidth * x + pdc_xoffset;
dest.h = pdc_fheight;
dest.w = pdc_fwidth * len;
uprect[rectcount].y = dest.y;
uprect[rectcount].x = dest.x;
uprect[rectcount].h = pdc_fheight;
uprect[rectcount].w = len * pdc_fwidth;
/* merge rects that are vertically adjacent and have the same
width -- mainly useful for full-screen updates */
rectcount++;
if (rectcount)
lastrect = uprect[rectcount - 1];
if (rectcount && (lastrect.x == dest.x) &&
(lastrect.w == dest.w) && (lastrect.y == dest.y - pdc_fheight))
uprect[rectcount - 1].h += pdc_fheight;
else
uprect[rectcount++] = dest;
for (j = 0; j < len; j++)
{