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To get around the Mac performance problem (which turns out to be due to

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a change in the way QDFlushPortBuffer() is handled -- it only updates
every 60th of a second, and blocks until then), here's a version that
builds a list of SDL_Rects, and calls SDL_UpdateRects() only when the
list is full, or from PDC_napms(). Of course it's (even) faster on other
platforms, too. However, in the degenerate case where PDC_napms() is
never called (no keyboard checks, no intentional pauses), the screen
will not be updated. I could get around that, too, but it's much more
hairy...
This commit is contained in:
William McBrine
2007-06-16 05:16:44 +00:00
parent f6be6a44fd
commit ee2bb56d38
3 changed files with 31 additions and 5 deletions
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29
sdl1/pdcdisp.c
View File

@@ -13,7 +13,7 @@
#include "pdcsdl.h"
RCSID("$Id: pdcdisp.c,v 1.11 2007/06/14 14:43:53 wmcbrine Exp $")
RCSID("$Id: pdcdisp.c,v 1.12 2007/06/16 05:16:44 wmcbrine Exp $")
#include <stdlib.h>
#include <string.h>
@@ -56,6 +56,22 @@ chtype acs_map[128] =
#endif
#define MAXRECT 200
static SDL_Rect uprect[MAXRECT];
static int rectcount = 0;
/* do the real updates on a delay */
void PDC_update_rects(void)
{
if (rectcount)
{
SDL_UpdateRects(pdc_screen, rectcount, uprect);
rectcount = 0;
}
}
/* set the font colors to match the chtype's attribute */
static void _set_attr(chtype ch)
@@ -184,6 +200,9 @@ void PDC_transform_line(int lineno, int x, int len, const chtype *srcp)
PDC_LOG(("PDC_transform_line() - called: lineno=%d\n", lineno));
if (rectcount == MAXRECT)
PDC_update_rects();
src.w = pdc_fwidth;
src.h = pdc_fheight;
dest.y = pdc_fheight * lineno;
@@ -214,6 +233,10 @@ void PDC_transform_line(int lineno, int x, int len, const chtype *srcp)
dest.x += pdc_fwidth;
}
SDL_UpdateRect(pdc_screen, x * pdc_fwidth, lineno * pdc_fheight,
len * pdc_fwidth, pdc_fheight);
uprect[rectcount].x = x * pdc_fwidth;
uprect[rectcount].y = lineno * pdc_fheight;
uprect[rectcount].w = len * pdc_fwidth;
uprect[rectcount].h = pdc_fheight;
rectcount++;
}

4
sdl1/pdcsdl.h
View File

@@ -11,7 +11,7 @@
* See the file maintain.er for details of the current maintainer. *
************************************************************************/
/* $Id: pdcsdl.h,v 1.4 2007/06/14 15:58:20 wmcbrine Exp $ */
/* $Id: pdcsdl.h,v 1.5 2007/06/16 05:16:44 wmcbrine Exp $ */
#include <curspriv.h>
@@ -22,3 +22,5 @@ extern SDL_Color pdc_color[16];
extern Uint32 pdc_mapped[16];
extern int pdc_fheight, pdc_fwidth, pdc_sheight, pdc_swidth;
extern bool pdc_own_screen;
void PDC_update_rects(void);

3
sdl1/pdcutil.c
View File

@@ -13,7 +13,7 @@
#include "pdcsdl.h"
RCSID("$Id: pdcutil.c,v 1.3 2007/06/14 13:50:27 wmcbrine Exp $")
RCSID("$Id: pdcutil.c,v 1.4 2007/06/16 05:16:44 wmcbrine Exp $")
void PDC_beep(void)
{
@@ -24,6 +24,7 @@ void PDC_napms(int ms)
{
PDC_LOG(("PDC_napms() - called: ms=%d\n", ms));
PDC_update_rects();
SDL_Delay(ms);
}