quakeforge/libs/video/renderer/sw32/screen.c

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/*
screen.c
master for refresh, status bar, console, chat, notify, etc
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
static __attribute__ ((used)) const char rcsid[] = "$Id$";
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <time.h>
#include "QF/cvar.h"
#include "QF/draw.h"
#include "QF/dstring.h"
#include "QF/image.h"
#include "QF/pcx.h"
#include "QF/quakefs.h"
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#include "QF/render.h"
#include "QF/screen.h"
#include "QF/sys.h"
#include "QF/va.h"
#include "compat.h"
#include "r_cvar.h"
#include "r_dynamic.h"
#include "r_local.h"
#include "r_screen.h"
#include "sbar.h"
/* SCREEN SHOTS */
VISIBLE tex_t *
SCR_CaptureBGR (void)
{
int count, x, y;
tex_t *tex;
const byte *src;
byte *dst;
count = vid.width * vid.height;
tex = malloc (field_offset (tex_t, data[count * 3]));
SYS_CHECKMEM (tex);
tex->width = vid.width;
tex->height = vid.height;
tex->format = tex_rgb;
tex->palette = 0;
D_EnableBackBufferAccess ();
src = vid.buffer;
for (y = 0; y < tex->height; y++) {
dst = tex->data + (tex->height - 1 - y) * tex->width * 3;
for (x = 0; x < tex->width; x++) {
*dst++ = vid.basepal[*src * 3 + 2]; // blue
*dst++ = vid.basepal[*src * 3 + 1]; // green
*dst++ = vid.basepal[*src * 3 + 0]; // red
src++;
}
}
D_DisableBackBufferAccess ();
return tex;
}
VISIBLE tex_t *
SCR_ScreenShot (int width, int height)
{
return 0;
}
void
SCR_ScreenShot_f (void)
{
dstring_t *pcxname = dstring_new ();
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pcx_t *pcx = 0;
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int pcx_len;
// find a file name to save it to
if (!QFS_NextFilename (pcxname,
va ("%s/qf", qfs_gamedir->dir.shots), ".pcx")) {
Sys_Printf ("SCR_ScreenShot_f: Couldn't create a PCX");
} else {
// enable direct drawing of console to back buffer
D_EnableBackBufferAccess ();
// save the pcx file
switch(r_pixbytes) {
case 1:
pcx = EncodePCX (vid.buffer, vid.width, vid.height, vid.rowbytes,
vid.basepal, false, &pcx_len);
break;
case 2:
Sys_Printf("SCR_ScreenShot_f: FIXME - add 16bit support\n");
break;
case 4:
Sys_Printf("SCR_ScreenShot_f: FIXME - add 32bit support\n");
break;
default:
Sys_Error("SCR_ScreenShot_f: unsupported r_pixbytes %i", r_pixbytes);
}
// for adapters that can't stay mapped in for linear writes all the time
D_DisableBackBufferAccess ();
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if (pcx) {
QFS_WriteFile (pcxname->str, pcx, pcx_len);
Sys_Printf ("Wrote %s/%s\n", qfs_userpath, pcxname->str);
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}
}
dstring_delete (pcxname);
}
/*
SCR_UpdateScreen
This is called every frame, and can also be called explicitly to flush
text to the screen.
WARNING: be very careful calling this from elsewhere, because the refresh
needs almost the entire 256k of stack space!
*/
VISIBLE void
SCR_UpdateScreen (double realtime, SCR_Func scr_3dfunc, SCR_Func *scr_funcs)
{
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vrect_t vrect;
if (scr_skipupdate)
return;
r_realtime = realtime;
scr_copytop = 0;
scr_copyeverything = 0;
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if (!scr_initialized)
return; // not initialized yet
if (oldfov != scr_fov->value) { // determine size of refresh window
oldfov = scr_fov->value;
vid.recalc_refdef = true;
}
if (vid.recalc_refdef)
SCR_CalcRefdef ();
// do 3D refresh drawing, and then update the screen
D_EnableBackBufferAccess (); // of all overlay stuff if drawing
// directly
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if (scr_fullupdate++ < vid.numpages) { // clear the entire screen
scr_copyeverything = 1;
Draw_TileClear (0, 0, vid.width, vid.height);
Sbar_Changed ();
}
pconupdate = NULL;
SCR_SetUpToDrawConsole ();
D_DisableBackBufferAccess (); // for adapters that can't stay mapped
// in for linear writes all the time
VID_LockBuffer ();
scr_3dfunc ();
VID_UnlockBuffer ();
D_EnableBackBufferAccess (); // of all overlay stuff if drawing
// directly
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while (*scr_funcs) {
(*scr_funcs)();
scr_funcs++;
}
D_DisableBackBufferAccess (); // for adapters that can't stay mapped
// in for linear writes all the time
if (pconupdate) {
D_UpdateRects (pconupdate);
}
// update one of three areas
if (scr_copyeverything) {
vrect.x = 0;
vrect.y = 0;
vrect.width = vid.width;
vrect.height = vid.height;
vrect.next = 0;
VID_Update (&vrect);
} else if (scr_copytop) {
vrect.x = 0;
vrect.y = 0;
vrect.width = vid.width;
vrect.height = vid.height - r_lineadj;
vrect.next = 0;
VID_Update (&vrect);
} else {
vrect.x = scr_vrect.x;
vrect.y = scr_vrect.y;
vrect.width = scr_vrect.width;
vrect.height = scr_vrect.height;
vrect.next = 0;
VID_Update (&vrect);
}
}