diff options
Diffstat (limited to 'WinQuake/d_fill.c')
| -rw-r--r-- | WinQuake/d_fill.c | 176 |
1 files changed, 88 insertions, 88 deletions
diff --git a/WinQuake/d_fill.c b/WinQuake/d_fill.c index e6c1473..b1ebb5f 100644 --- a/WinQuake/d_fill.c +++ b/WinQuake/d_fill.c @@ -1,88 +1,88 @@ -/* -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 the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - -*/ -// d_clear: clears a specified rectangle to the specified color - -#include "quakedef.h" - - -/* -================ -D_FillRect -================ -*/ -void D_FillRect (vrect_t *rect, int color) -{ - int rx, ry, rwidth, rheight; - unsigned char *dest; - unsigned *ldest; - - rx = rect->x; - ry = rect->y; - rwidth = rect->width; - rheight = rect->height; - - if (rx < 0) - { - rwidth += rx; - rx = 0; - } - if (ry < 0) - { - rheight += ry; - ry = 0; - } - if (rx+rwidth > vid.width) - rwidth = vid.width - rx; - if (ry+rheight > vid.height) - rheight = vid.height - rx; - - if (rwidth < 1 || rheight < 1) - return; - - dest = ((byte *)vid.buffer + ry*vid.rowbytes + rx); - - if (((rwidth & 0x03) == 0) && (((long)dest & 0x03) == 0)) - { - // faster aligned dword clear - ldest = (unsigned *)dest; - color += color << 16; - - rwidth >>= 2; - color += color << 8; - - for (ry=0 ; ry<rheight ; ry++) - { - for (rx=0 ; rx<rwidth ; rx++) - ldest[rx] = color; - ldest = (unsigned *)((byte*)ldest + vid.rowbytes); - } - } - else - { - // slower byte-by-byte clear for unaligned cases - for (ry=0 ; ry<rheight ; ry++) - { - for (rx=0 ; rx<rwidth ; rx++) - dest[rx] = color; - dest += vid.rowbytes; - } - } -} - +/*
+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 the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+*/
+// d_clear: clears a specified rectangle to the specified color
+
+#include "quakedef.h"
+
+
+/*
+================
+D_FillRect
+================
+*/
+void D_FillRect (vrect_t *rect, int color)
+{
+ int rx, ry, rwidth, rheight;
+ unsigned char *dest;
+ unsigned *ldest;
+
+ rx = rect->x;
+ ry = rect->y;
+ rwidth = rect->width;
+ rheight = rect->height;
+
+ if (rx < 0)
+ {
+ rwidth += rx;
+ rx = 0;
+ }
+ if (ry < 0)
+ {
+ rheight += ry;
+ ry = 0;
+ }
+ if (rx+rwidth > vid.width)
+ rwidth = vid.width - rx;
+ if (ry+rheight > vid.height)
+ rheight = vid.height - rx;
+
+ if (rwidth < 1 || rheight < 1)
+ return;
+
+ dest = ((byte *)vid.buffer + ry*vid.rowbytes + rx);
+
+ if (((rwidth & 0x03) == 0) && (((long)dest & 0x03) == 0))
+ {
+ // faster aligned dword clear
+ ldest = (unsigned *)dest;
+ color += color << 16;
+
+ rwidth >>= 2;
+ color += color << 8;
+
+ for (ry=0 ; ry<rheight ; ry++)
+ {
+ for (rx=0 ; rx<rwidth ; rx++)
+ ldest[rx] = color;
+ ldest = (unsigned *)((byte*)ldest + vid.rowbytes);
+ }
+ }
+ else
+ {
+ // slower byte-by-byte clear for unaligned cases
+ for (ry=0 ; ry<rheight ; ry++)
+ {
+ for (rx=0 ; rx<rwidth ; rx++)
+ dest[rx] = color;
+ dest += vid.rowbytes;
+ }
+ }
+}
+
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