mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-12-13 14:10:57 +00:00
323015b11a
a nono because headers in include/QF get installed, but include don't and thus would break quakeforge-dev.
728 lines
15 KiB
C
728 lines
15 KiB
C
/*
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vid_x11.c
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General X11 video driver
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 1999-2000 contributors of the QuakeForge project
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Copyright (C) 2000 Marcus Sundberg [mackan@stacken.kth.se]
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Copyright (C) 1999,2000 contributors of the QuakeForge project
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Please see the file "AUTHORS" for a list of contributors
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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$Id$
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*/
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#define _BSD
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include <ctype.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <X11/Xatom.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/keysym.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <X11/extensions/XShm.h>
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#ifdef HAVE_VIDMODE
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# include <X11/extensions/xf86vmode.h>
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#endif
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#include "QF/cmd.h"
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#include "compat.h"
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#include "QF/console.h"
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#include "QF/cvar.h"
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#include "QF/qargs.h"
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#include "QF/qendian.h"
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#include "QF/screen.h"
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#include "QF/sys.h"
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#include "QF/va.h"
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#include "QF/vid.h"
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#include "context_x11.h"
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#include "dga_check.h"
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extern viddef_t vid; // global video state
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static Colormap x_cmap;
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static GC x_gc;
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int XShmQueryExtension (Display *);
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int XShmGetEventBase (Display *);
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static qboolean doShm;
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static XShmSegmentInfo x_shminfo[2];
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static int current_framebuffer;
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static XImage *x_framebuffer[2] = { 0, 0 };
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static int verbose = 0;
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int VID_options_items = 1;
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static byte current_palette[768];
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typedef unsigned short PIXEL16;
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typedef unsigned long PIXEL24;
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static PIXEL16 st2d_8to16table[256];
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static PIXEL24 st2d_8to24table[256];
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static int shiftmask_fl = 0;
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static long r_shift, g_shift, b_shift;
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static unsigned long r_mask, g_mask, b_mask;
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cvar_t *vid_width;
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cvar_t *vid_height;
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static void
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shiftmask_init (void)
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{
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unsigned int x;
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r_mask = x_vis->red_mask;
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g_mask = x_vis->green_mask;
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b_mask = x_vis->blue_mask;
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for (r_shift = -8, x = 1; x < r_mask; x <<= 1)
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r_shift++;
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for (g_shift = -8, x = 1; x < g_mask; x <<= 1)
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g_shift++;
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for (b_shift = -8, x = 1; x < b_mask; x <<= 1)
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b_shift++;
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shiftmask_fl = 1;
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}
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static PIXEL16
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xlib_rgb16 (int r, int g, int b)
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{
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PIXEL16 p = 0;
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if (!shiftmask_fl)
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shiftmask_init ();
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if (r_shift > 0) {
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p = (r << (r_shift)) & r_mask;
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} else {
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if (r_shift < 0) {
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p = (r >> (-r_shift)) & r_mask;
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} else {
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p |= (r & r_mask);
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}
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}
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if (g_shift > 0) {
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p |= (g << (g_shift)) & g_mask;
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} else {
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if (g_shift < 0) {
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p |= (g >> (-g_shift)) & g_mask;
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} else {
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p |= (g & g_mask);
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}
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}
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if (b_shift > 0) {
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p |= (b << (b_shift)) & b_mask;
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} else {
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if (b_shift < 0) {
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p |= (b >> (-b_shift)) & b_mask;
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} else {
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p |= (b & b_mask);
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}
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}
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return p;
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}
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static PIXEL24
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xlib_rgb24 (int r, int g, int b)
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{
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PIXEL24 p = 0;
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if (!shiftmask_fl)
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shiftmask_init ();
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if (r_shift > 0) {
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p = (r << (r_shift)) & r_mask;
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} else {
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if (r_shift < 0) {
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p = (r >> (-r_shift)) & r_mask;
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} else {
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p |= (r & r_mask);
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}
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}
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if (g_shift > 0) {
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p |= (g << (g_shift)) & g_mask;
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} else {
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if (g_shift < 0) {
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p |= (g >> (-g_shift)) & g_mask;
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} else {
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p |= (g & g_mask);
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}
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}
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if (b_shift > 0) {
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p |= (b << (b_shift)) & b_mask;
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} else {
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if (b_shift < 0) {
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p |= (b >> (-b_shift)) & b_mask;
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} else {
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p |= (b & b_mask);
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}
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}
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return p;
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}
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static void
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st2_fixup (XImage *framebuf, int x, int y, int width, int height)
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{
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int xi, yi;
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unsigned char *src;
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PIXEL16 *dest;
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if (x < 0 || y < 0)
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return;
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for (yi = y; yi < (y + height); yi++) {
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src = &framebuf->data[yi * framebuf->bytes_per_line];
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dest = (PIXEL16 *) src;
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for (xi = (x + width - 1); xi >= x; xi--) {
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dest[xi] = st2d_8to16table[src[xi]];
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}
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}
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}
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static void
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st3_fixup (XImage * framebuf, int x, int y, int width, int height)
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{
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int yi;
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unsigned char *src;
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PIXEL24 *dest;
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register int count, n;
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if (x < 0 || y < 0)
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return;
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for (yi = y; yi < (y + height); yi++) {
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src = &framebuf->data[yi * framebuf->bytes_per_line];
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// Duff's Device
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count = width;
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n = (count + 7) / 8;
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dest = ((PIXEL24 *) src) + x + width - 1;
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src += x + width - 1;
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switch (count % 8) {
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case 0:
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do {
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*dest-- = st2d_8to24table[*src--];
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case 7:
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*dest-- = st2d_8to24table[*src--];
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case 6:
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*dest-- = st2d_8to24table[*src--];
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case 5:
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*dest-- = st2d_8to24table[*src--];
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case 4:
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*dest-- = st2d_8to24table[*src--];
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case 3:
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*dest-- = st2d_8to24table[*src--];
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case 2:
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*dest-- = st2d_8to24table[*src--];
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case 1:
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*dest-- = st2d_8to24table[*src--];
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} while (--n > 0);
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}
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// for(xi = (x+width-1); xi >= x; xi--) {
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// dest[xi] = st2d_8to16table[src[xi]];
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// }
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}
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}
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/*
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D_BeginDirectRect
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*/
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void
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D_BeginDirectRect (int x, int y, byte *pbitmap, int width, int height)
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{
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// direct drawing of the "accessing disk" icon isn't supported
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}
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/*
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D_EndDirectRect
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*/
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void
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D_EndDirectRect (int x, int y, int width, int height)
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{
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// direct drawing of the "accessing disk" icon isn't supported
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}
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static void
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ResetFrameBuffer (void)
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{
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int mem, pwidth;
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if (x_framebuffer[0]) {
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XDestroyImage (x_framebuffer[0]);
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}
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pwidth = x_visinfo->depth / 8;
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if (pwidth == 3)
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pwidth = 4;
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mem = ((vid.width * pwidth + 7) & ~7) * vid.height;
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// allocate new screen buffer
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x_framebuffer[0] = XCreateImage (x_disp, x_vis, x_visinfo->depth,
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ZPixmap, 0, malloc (mem), vid.width,
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vid.height, 32, 0);
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if (!x_framebuffer[0]) {
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Sys_Error ("VID: XCreateImage failed\n");
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}
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}
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static void
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ResetSharedFrameBuffers (void)
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{
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int size;
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int key;
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int minsize = getpagesize ();
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int frm;
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for (frm = 0; frm < 2; frm++) {
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// free up old frame buffer memory
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if (x_framebuffer[frm]) {
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XShmDetach (x_disp, &x_shminfo[frm]);
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free (x_framebuffer[frm]);
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shmdt (x_shminfo[frm].shmaddr);
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}
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// create the image
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x_framebuffer[frm] = XShmCreateImage (x_disp, x_vis, x_visinfo->depth,
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ZPixmap, 0, &x_shminfo[frm],
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vid.width, vid.height);
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// grab shared memory
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size = x_framebuffer[frm]->bytes_per_line * x_framebuffer[frm]->height;
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if (size < minsize)
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Sys_Error ("VID: Window must use at least %d bytes\n", minsize);
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key = random ();
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x_shminfo[frm].shmid = shmget ((key_t) key, size, IPC_CREAT | 0777);
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if (x_shminfo[frm].shmid == -1)
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Sys_Error ("VID: Could not get any shared memory\n");
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// attach to the shared memory segment
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x_shminfo[frm].shmaddr = (void *) shmat (x_shminfo[frm].shmid, 0, 0);
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printf ("VID: shared memory id=%d, addr=0x%lx\n", x_shminfo[frm].shmid,
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(long) x_shminfo[frm].shmaddr);
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x_framebuffer[frm]->data = x_shminfo[frm].shmaddr;
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// get the X server to attach to it
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if (!XShmAttach (x_disp, &x_shminfo[frm]))
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Sys_Error ("VID: XShmAttach() failed\n");
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XSync (x_disp, 0);
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shmctl (x_shminfo[frm].shmid, IPC_RMID, 0);
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}
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}
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static void
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x11_init_buffers (void)
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{
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if (doShm)
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ResetSharedFrameBuffers ();
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else
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ResetFrameBuffer ();
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vid.direct = 0;
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vid.rowbytes = x_framebuffer[0]->bytes_per_line;
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vid.buffer = x_framebuffer[current_framebuffer]->data;
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vid.conbuffer = vid.buffer;
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vid.conwidth = vid.width;
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vid.conheight = vid.height;
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vid.conrowbytes = vid.rowbytes;
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vid.aspect = ((float) vid.height / (float) vid.width) * (320.0 / 240.0);
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current_framebuffer = 0;
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}
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static void
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event_shm (XEvent * event)
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{
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if (doShm)
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oktodraw = true;
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}
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void
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VID_Center_f (void) {
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X11_ForceViewPort ();
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}
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/*
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VID_Init
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Set up color translation tables and the window. Takes a 256-color 8-bit
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palette. Palette data will go away after the call, so copy it if you'll
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need it later.
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*/
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void
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VID_Init (unsigned char *palette)
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{
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int pnum, i;
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XVisualInfo template;
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int num_visuals;
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int template_mask;
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Cmd_AddCommand ("vid_center", VID_Center_f, "Center the view port on the quake window in a virtual desktop.\n");
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VID_GetWindowSize (320, 200);
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vid.width = vid_width->int_val;
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vid.height = vid_height->int_val;
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Con_CheckResize (); // Now that we have a window size, fix console
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vid.numpages = 2;
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vid.colormap = vid_colormap;
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vid.fullbright = 256 - LittleLong (*((int *) vid.colormap + 2048));
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srandom (getpid ());
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verbose = COM_CheckParm ("-verbose");
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// open the display
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X11_OpenDisplay ();
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template_mask = 0;
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// specify a visual id
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if ((pnum = COM_CheckParm ("-visualid"))) {
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if (pnum >= com_argc - 1)
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Sys_Error ("VID: -visualid <id#>\n");
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template.visualid = atoi (com_argv[pnum + 1]);
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template_mask = VisualIDMask;
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} else { // If not specified, use default
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// visual
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template.visualid =
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XVisualIDFromVisual (XDefaultVisual (x_disp, x_screen));
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template_mask = VisualIDMask;
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}
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// pick a visual -- warn if more than one was available
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x_visinfo = XGetVisualInfo (x_disp, template_mask, &template, &num_visuals);
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x_vis = x_visinfo->visual;
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if (num_visuals > 1) {
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printf ("Found more than one visual id at depth %d:\n", template.depth);
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for (i = 0; i < num_visuals; i++)
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printf (" -visualid %d\n", (int) x_visinfo[i].visualid);
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} else {
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if (num_visuals == 0) {
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if (template_mask == VisualIDMask) {
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Sys_Error ("VID: Bad visual ID %ld\n", template.visualid);
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} else {
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Sys_Error ("VID: No visuals at depth %d\n", template.depth);
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}
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}
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}
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if (verbose) {
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printf ("Using visualid %d:\n", (int) x_visinfo->visualid);
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printf (" class %d\n", x_visinfo->class);
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printf (" screen %d\n", x_visinfo->screen);
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printf (" depth %d\n", x_visinfo->depth);
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printf (" red_mask 0x%x\n", (int) x_visinfo->red_mask);
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printf (" green_mask 0x%x\n", (int) x_visinfo->green_mask);
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printf (" blue_mask 0x%x\n", (int) x_visinfo->blue_mask);
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printf (" colormap_size %d\n", x_visinfo->colormap_size);
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printf (" bits_per_rgb %d\n", x_visinfo->bits_per_rgb);
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}
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/* Setup attributes for main window */
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X11_SetVidMode (vid.width, vid.height);
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/* Create the main window */
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X11_CreateWindow (vid.width, vid.height);
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/* Invisible cursor */
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X11_CreateNullCursor ();
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VID_InitGamma (palette);
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VID_SetPalette (palette);
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if (x_visinfo->depth == 8) {
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/* Create and upload the palette */
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if (x_visinfo->class == PseudoColor) {
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x_cmap = XCreateColormap (x_disp, x_win, x_vis, AllocAll);
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VID_SetPalette (palette);
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XSetWindowColormap (x_disp, x_win, x_cmap);
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}
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}
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// create the GC
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{
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XGCValues xgcvalues;
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int valuemask = GCGraphicsExposures;
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xgcvalues.graphics_exposures = False;
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x_gc = XCreateGC (x_disp, x_win, valuemask, &xgcvalues);
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}
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X11_GrabKeyboard ();
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// wait for first exposure event
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{
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XEvent event;
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do {
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XNextEvent (x_disp, &event);
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if (event.type == Expose && !event.xexpose.count)
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oktodraw = true;
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} while (!oktodraw);
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}
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// now safe to draw
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// even if MITSHM is available, make sure it's a local connection
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if (XShmQueryExtension (x_disp)) {
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char *displayname;
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char *d;
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doShm = true;
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if ((displayname = XDisplayName (NULL))) {
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if ((d = strchr (displayname, ':')))
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*d = '\0';
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if (!(!strcasecmp (displayname, "unix") || !*displayname))
|
|
doShm = false;
|
|
}
|
|
}
|
|
|
|
if (doShm) {
|
|
x_shmeventtype = XShmGetEventBase (x_disp) + ShmCompletion;
|
|
}
|
|
|
|
vid.do_screen_buffer = x11_init_buffers;
|
|
VID_InitBuffers ();
|
|
|
|
// XSynchronize (x_disp, False);
|
|
X11_AddEvent (x_shmeventtype, event_shm);
|
|
|
|
vid.initialized = true;
|
|
}
|
|
|
|
void
|
|
VID_Init_Cvars ()
|
|
{
|
|
X11_Init_Cvars ();
|
|
}
|
|
|
|
|
|
void
|
|
VID_SetPalette (unsigned char *palette)
|
|
{
|
|
int i;
|
|
XColor colors[256];
|
|
|
|
for (i = 0; i < 256; i++) {
|
|
st2d_8to16table[i] = xlib_rgb16 (palette[i * 3], palette[i * 3 + 1],
|
|
palette[i * 3 + 2]);
|
|
st2d_8to24table[i] = xlib_rgb24 (palette[i * 3], palette[i * 3 + 1],
|
|
palette[i * 3 + 2]);
|
|
}
|
|
|
|
if (x_visinfo->class == PseudoColor && x_visinfo->depth == 8) {
|
|
if (palette != current_palette) {
|
|
memcpy (current_palette, palette, 768);
|
|
}
|
|
for (i = 0; i < 256; i++) {
|
|
colors[i].pixel = i;
|
|
colors[i].flags = DoRed | DoGreen | DoBlue;
|
|
colors[i].red = gammatable[(byte) palette[(i * 3)]];
|
|
colors[i].green = gammatable[(byte) palette[(i * 3) + 1]];
|
|
colors[i].blue = gammatable[(byte) palette[(i * 3) + 2]];
|
|
}
|
|
XStoreColors (x_disp, x_cmap, colors, 256);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
VID_Shutdown
|
|
|
|
Restore video mode
|
|
*/
|
|
void
|
|
VID_Shutdown (void)
|
|
{
|
|
Sys_Printf ("VID_Shutdown\n");
|
|
if (x_disp) {
|
|
X11_RestoreVidMode ();
|
|
X11_CloseDisplay ();
|
|
}
|
|
}
|
|
|
|
static int config_notify = 0;
|
|
static int config_notify_width;
|
|
static int config_notify_height;
|
|
|
|
/*
|
|
VID_Update
|
|
|
|
Flush the given rectangles from the view buffer to the screen.
|
|
*/
|
|
void
|
|
VID_Update (vrect_t *rects)
|
|
{
|
|
/* If the window changes dimension, skip this frame. */
|
|
if (config_notify) {
|
|
fprintf (stderr, "config notify\n");
|
|
config_notify = 0;
|
|
vid.width = config_notify_width & ~7;
|
|
vid.height = config_notify_height;
|
|
|
|
VID_InitBuffers ();
|
|
|
|
vid.recalc_refdef = 1; /* force a surface cache flush */
|
|
Con_CheckResize ();
|
|
Con_Clear_f ();
|
|
return;
|
|
}
|
|
|
|
while (rects) {
|
|
switch (x_visinfo->depth) {
|
|
case 16:
|
|
st2_fixup (x_framebuffer[current_framebuffer],
|
|
rects->x, rects->y, rects->width, rects->height);
|
|
break;
|
|
case 24:
|
|
st3_fixup (x_framebuffer[current_framebuffer],
|
|
rects->x, rects->y, rects->width, rects->height);
|
|
break;
|
|
}
|
|
if (doShm) {
|
|
if (!XShmPutImage (x_disp, x_win, x_gc,
|
|
x_framebuffer[current_framebuffer],
|
|
rects->x, rects->y, rects->x, rects->y,
|
|
rects->width, rects->height, True)) {
|
|
Sys_Error ("VID_Update: XShmPutImage failed\n");
|
|
}
|
|
oktodraw = false;
|
|
while (!oktodraw)
|
|
X11_ProcessEvent ();
|
|
rects = rects->pnext;
|
|
|
|
current_framebuffer = !current_framebuffer;
|
|
vid.buffer = x_framebuffer[current_framebuffer]->data;
|
|
vid.conbuffer = vid.buffer;
|
|
} else {
|
|
if (!XPutImage (x_disp, x_win, x_gc, x_framebuffer[0],
|
|
rects->x, rects->y, rects->x, rects->y,
|
|
rects->width, rects->height)) {
|
|
Sys_Error ("VID_Update: XPutImage failed\n");
|
|
}
|
|
rects = rects->pnext;
|
|
}
|
|
}
|
|
XSync (x_disp, False);
|
|
scr_fullupdate = 0;
|
|
}
|
|
|
|
static qboolean dither;
|
|
|
|
void
|
|
VID_DitherOn (void)
|
|
{
|
|
if (!dither) {
|
|
vid.recalc_refdef = 1;
|
|
dither = true;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
VID_DitherOff (void)
|
|
{
|
|
if (dither) {
|
|
vid.recalc_refdef = 1;
|
|
dither = false;
|
|
}
|
|
}
|
|
|
|
void
|
|
VID_LockBuffer (void)
|
|
{
|
|
}
|
|
|
|
void
|
|
VID_UnlockBuffer (void)
|
|
{
|
|
}
|
|
|
|
void
|
|
VID_SetCaption (char *text)
|
|
{
|
|
if (text && *text) {
|
|
char *temp = strdup (text);
|
|
|
|
X11_SetCaption (va ("%s %s: %s", PROGRAM, VERSION, temp));
|
|
free (temp);
|
|
} else {
|
|
X11_SetCaption (va ("%s %s", PROGRAM, VERSION));
|
|
}
|
|
}
|
|
|
|
double
|
|
VID_GetGamma (void)
|
|
{
|
|
return (double) X11_GetGamma ();
|
|
}
|
|
|
|
qboolean
|
|
VID_SetGamma (double gamma)
|
|
{
|
|
return X11_SetGamma (gamma);
|
|
}
|