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libretro-tyrquake/common/vid_x.c
Kevin Shanahan f09d13d07a vid: constify source bitmap for D_BeginDirectRect 
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
2012-12-22 16:14:59 +10:30

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/*
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.
*/
// vid_x.c -- general x video driver
#include <ctype.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/keysym.h>
#include <X11/extensions/XShm.h>
#include <X11/extensions/xf86vmode.h>
// FIXME - refactoring X11 support...
#include "x11_core.h"
#include "in_x11.h"
#include "common.h"
#include "console.h"
#include "d_local.h"
#include "keys.h"
#include "quakedef.h"
#include "screen.h"
#include "sys.h"
#ifdef NQ_HACK
#include "host.h"
#endif
static int ignorenext;
typedef struct {
int input;
int output;
} keymap_t;
viddef_t vid; // global video state
unsigned short d_8to16table[256];
cvar_t vid_mode = { "vid_mode", "0", false };
static qboolean doShm;
static Colormap x_cmap;
static GC x_gc;
static Visual *x_vis;
static XVisualInfo *x_visinfo;
static int x_shmeventtype;
static qboolean oktodraw = false;
static int current_framebuffer;
static XImage *x_framebuffer[2] = { 0, 0 };
static XShmSegmentInfo x_shminfo[2];
static int verbose = 0;
static byte current_palette[768];
static long X11_highhunkmark;
static long X11_buffersize;
static int vid_surfcachesize;
static void *vid_surfcache;
void (*vid_menudrawfn) (void);
void (*vid_menukeyfn) (int key);
typedef unsigned short PIXEL16;
typedef unsigned int PIXEL24;
static PIXEL16 st2d_8to16table[256];
static PIXEL24 st2d_8to24table[256];
static int shiftmask_fl = 0;
static int r_shift, g_shift, b_shift;
static unsigned int r_mask, g_mask, b_mask;
static XF86VidModeModeInfo saved_vidmode;
static qboolean vidmode_active;
static void
shiftmask_init()
{
unsigned int x;
r_mask = x_vis->red_mask;
g_mask = x_vis->green_mask;
b_mask = x_vis->blue_mask;
for (r_shift = -8, x = 1; x < r_mask; x = x << 1)
r_shift++;
for (g_shift = -8, x = 1; x < g_mask; x = x << 1)
g_shift++;
for (b_shift = -8, x = 1; x < b_mask; x = x << 1)
b_shift++;
shiftmask_fl = 1;
}
static PIXEL16
xlib_rgb16(int r, int g, int b)
{
PIXEL16 p;
if (shiftmask_fl == 0)
shiftmask_init();
p = 0;
if (r_shift > 0) {
p = (r << (r_shift)) & r_mask;
} else if (r_shift < 0) {
p = (r >> (-r_shift)) & r_mask;
} else
p |= (r & r_mask);
if (g_shift > 0) {
p |= (g << (g_shift)) & g_mask;
} else if (g_shift < 0) {
p |= (g >> (-g_shift)) & g_mask;
} else
p |= (g & g_mask);
if (b_shift > 0) {
p |= (b << (b_shift)) & b_mask;
} else if (b_shift < 0) {
p |= (b >> (-b_shift)) & b_mask;
} else
p |= (b & b_mask);
return p;
}
static PIXEL24
xlib_rgb24(int r, int g, int b)
{
PIXEL24 p;
if (shiftmask_fl == 0)
shiftmask_init();
p = 0;
if (r_shift > 0) {
p = (r << (r_shift)) & r_mask;
} else if (r_shift < 0) {
p = (r >> (-r_shift)) & r_mask;
} else
p |= (r & r_mask);
if (g_shift > 0) {
p |= (g << (g_shift)) & g_mask;
} else if (g_shift < 0) {
p |= (g >> (-g_shift)) & g_mask;
} else
p |= (g & g_mask);
if (b_shift > 0) {
p |= (b << (b_shift)) & b_mask;
} else if (b_shift < 0) {
p |= (b >> (-b_shift)) & b_mask;
} else
p |= (b & b_mask);
return p;
}
static void
st2_fixup(XImage *framebuf, int x, int y, int width, int height)
{
int yi;
unsigned char *src;
PIXEL16 *dest;
register int count, n;
if ((x < 0) || (y < 0))
return;
for (yi = y; yi < (y + height); yi++) {
src = (unsigned char *)&framebuf->data[yi * framebuf->bytes_per_line];
// Duff's Device
count = width;
n = (count + 7) / 8;
dest = ((PIXEL16 *)src) + x + width - 1;
src += x + width - 1;
switch (count % 8) {
case 0:
do {
*dest-- = st2d_8to16table[*src--];
case 7:
*dest-- = st2d_8to16table[*src--];
case 6:
*dest-- = st2d_8to16table[*src--];
case 5:
*dest-- = st2d_8to16table[*src--];
case 4:
*dest-- = st2d_8to16table[*src--];
case 3:
*dest-- = st2d_8to16table[*src--];
case 2:
*dest-- = st2d_8to16table[*src--];
case 1:
*dest-- = st2d_8to16table[*src--];
} while (--n > 0);
}
//for (xi = (x + width - 1); xi >= x; xi--) {
// dest[xi] = st2d_8to16table[src[xi]];
//}
}
}
static void
st3_fixup(XImage * framebuf, int x, int y, int width, int height)
{
int yi;
unsigned char *src;
PIXEL24 *dest;
register int count, n;
if ((x < 0) || (y < 0))
return;
for (yi = y; yi < (y + height); yi++) {
src = (unsigned char *)&framebuf->data[yi * framebuf->bytes_per_line];
// Duff's Device
count = width;
n = (count + 7) / 8;
dest = ((PIXEL24 *)src) + x + width - 1;
src += x + width - 1;
switch (count % 8) {
case 0:
do {
*dest-- = st2d_8to24table[*src--];
case 7:
*dest-- = st2d_8to24table[*src--];
case 6:
*dest-- = st2d_8to24table[*src--];
case 5:
*dest-- = st2d_8to24table[*src--];
case 4:
*dest-- = st2d_8to24table[*src--];
case 3:
*dest-- = st2d_8to24table[*src--];
case 2:
*dest-- = st2d_8to24table[*src--];
case 1:
*dest-- = st2d_8to24table[*src--];
} while (--n > 0);
}
// for(xi = (x+width-1); xi >= x; xi--) {
// dest[xi] = st2d_8to16table[src[xi]];
// }
}
}
// ========================================================================
// Tragic death handler
// ========================================================================
static void
TragicDeath(int signal_num)
{
XAutoRepeatOn(x_disp);
XCloseDisplay(x_disp);
Sys_Error("This death brought to you by the number %d", signal_num);
}
static void
ResetFrameBuffer(void)
{
int mem;
int pwidth;
if (x_framebuffer[0]) {
free(x_framebuffer[0]->data);
free(x_framebuffer[0]);
}
if (d_pzbuffer) {
D_FlushCaches();
Hunk_FreeToHighMark(X11_highhunkmark);
d_pzbuffer = NULL;
}
X11_highhunkmark = Hunk_HighMark();
// alloc an extra line in case we want to wrap, and allocate the z-buffer
X11_buffersize = vid.width * vid.height * sizeof(*d_pzbuffer);
vid_surfcachesize = D_SurfaceCacheForRes(vid.width, vid.height);
X11_buffersize += vid_surfcachesize;
d_pzbuffer = Hunk_HighAllocName(X11_buffersize, "video");
if (d_pzbuffer == NULL)
Sys_Error("Not enough memory for video mode");
vid_surfcache = (byte *)d_pzbuffer
+ vid.width * vid.height * sizeof(*d_pzbuffer);
D_InitCaches(vid_surfcache, vid_surfcachesize);
pwidth = x_visinfo->depth / 8;
if (pwidth == 3)
pwidth = 4;
mem = ((vid.width * pwidth + 7) & ~7) * vid.height;
x_framebuffer[0] = XCreateImage(x_disp,
x_vis,
x_visinfo->depth,
ZPixmap,
0,
malloc(mem),
vid.width, vid.height, 32, 0);
if (!x_framebuffer[0])
Sys_Error("VID: XCreateImage failed");
vid.buffer = (byte *)(x_framebuffer[0]);
vid.conbuffer = vid.buffer;
}
static void
ResetSharedFrameBuffers(void)
{
int size;
int key;
int minsize = getpagesize();
int frm;
if (d_pzbuffer) {
D_FlushCaches();
Hunk_FreeToHighMark(X11_highhunkmark);
d_pzbuffer = NULL;
}
X11_highhunkmark = Hunk_HighMark();
// alloc an extra line in case we want to wrap, and allocate the z-buffer
X11_buffersize = vid.width * vid.height * sizeof(*d_pzbuffer);
vid_surfcachesize = D_SurfaceCacheForRes(vid.width, vid.height);
X11_buffersize += vid_surfcachesize;
d_pzbuffer = Hunk_HighAllocName(X11_buffersize, "video");
if (!d_pzbuffer)
Sys_Error("Not enough memory for video mode");
vid_surfcache = (byte *)d_pzbuffer
+ vid.width * vid.height * sizeof(*d_pzbuffer);
D_InitCaches(vid_surfcache, vid_surfcachesize);
for (frm = 0; frm < 2; frm++) {
// free up old frame buffer memory
if (x_framebuffer[frm]) {
XShmDetach(x_disp, &x_shminfo[frm]);
free(x_framebuffer[frm]);
shmdt(x_shminfo[frm].shmaddr);
}
// create the image
x_framebuffer[frm] = XShmCreateImage(x_disp,
x_vis,
x_visinfo->depth,
ZPixmap,
0,
&x_shminfo[frm],
vid.width, vid.height);
// grab shared memory
size = x_framebuffer[frm]->bytes_per_line
* x_framebuffer[frm]->height;
if (size < minsize)
Sys_Error("VID: Window must use at least %d bytes", minsize);
key = random();
x_shminfo[frm].shmid = shmget((key_t) key, size, IPC_CREAT | 0777);
if (x_shminfo[frm].shmid == -1)
Sys_Error("VID: Could not get any shared memory");
// attach to the shared memory segment
x_shminfo[frm].shmaddr = (void *)shmat(x_shminfo[frm].shmid, 0, 0);
printf("VID: shared memory id=%d, addr=0x%lx\n",
x_shminfo[frm].shmid, (long)x_shminfo[frm].shmaddr);
x_framebuffer[frm]->data = x_shminfo[frm].shmaddr;
// get the X server to attach to it
if (!XShmAttach(x_disp, &x_shminfo[frm]))
Sys_Error("VID: XShmAttach() failed");
XSync(x_disp, 0);
shmctl(x_shminfo[frm].shmid, IPC_RMID, 0);
}
}
/*
* Set the vidmode to the requested width/height if possible
* Return true if successful, false otherwise
*/
static qboolean
VID_set_vidmode(int width, int height)
{
int i, x, y, dist;
int best_dist = 9999999;
int num_modes;
XF86VidModeModeInfo **modes;
XF86VidModeModeInfo *mode = NULL;
qboolean mode_changed = false;
if (vidmode_active)
Sys_Error("%s: called while vidmode_active == true.", __func__);
XF86VidModeGetAllModeLines(x_disp, x_visinfo->screen, &num_modes, &modes);
for (i = 0; i < num_modes; i++) {
if (width > modes[i]->hdisplay || height > modes[i]->vdisplay)
continue;
x = width - modes[i]->hdisplay;
y = height - modes[i]->vdisplay;
dist = (x * x) + (y * y);
if (dist < best_dist) {
best_dist = dist;
mode = modes[i];
}
}
if (mode) {
mode_changed = XF86VidModeSwitchToMode(x_disp, x_visinfo->screen,
mode);
if (mode_changed) {
vidmode_active = true;
memcpy(&saved_vidmode, modes[0], sizeof(XF86VidModeModeInfo));
}
}
return mode_changed;
}
static void
VID_restore_vidmode()
{
if (vidmode_active) {
XF86VidModeSwitchToMode(x_disp, x_visinfo->screen, &saved_vidmode);
if (saved_vidmode.privsize && saved_vidmode.private)
XFree(saved_vidmode.private);
}
}
// Called at startup to set up translation tables, takes 256 8 bit RGB values
// the palette data will go away after the call, so it must be copied off if
// the video driver will need it again
void
VID_Init(unsigned char *palette)
{
int pnum, i;
XVisualInfo template;
int num_visuals;
int template_mask;
XSetWindowAttributes attr;
unsigned long mask;
qboolean fullscreen = true;
qboolean vidmode_ext = false;
int MajorVersion, MinorVersion;
Window root;
ignorenext = 0; // FIXME - what's this for??
vid.width = 320;
vid.height = 200;
vid.maxwarpwidth = WARP_WIDTH;
vid.maxwarpheight = WARP_HEIGHT;
vid.numpages = 2;
vid.colormap = host_colormap;
// vid.cbits = VID_CBITS;
// vid.grades = VID_GRADES;
vid.fullbright = 256 - LittleLong(*((int *)vid.colormap + 2048));
srandom(getpid());
verbose = COM_CheckParm("-verbose");
// open the display
x_disp = XOpenDisplay(NULL);
if (x_disp == NULL) {
if (getenv("DISPLAY"))
Sys_Error("VID: Could not open display [%s]", getenv("DISPLAY"));
else
Sys_Error("VID: Could not open local display");
}
// Check video mode extension
MajorVersion = MinorVersion = 0;
if (XF86VidModeQueryVersion(x_disp, &MajorVersion, &MinorVersion)) {
Con_Printf("Using XFree86-VidModeExtension Version %i.%i\n",
MajorVersion, MinorVersion);
vidmode_ext = true;
}
// catch signals so i can turn on auto-repeat
{
struct sigaction sa;
sigaction(SIGINT, 0, &sa);
sa.sa_handler = TragicDeath;
sigaction(SIGINT, &sa, 0);
sigaction(SIGTERM, &sa, 0);
}
XAutoRepeatOff(x_disp);
// for debugging only
XSynchronize(x_disp, True);
if (COM_CheckParm("-window") || COM_CheckParm("-w"))
fullscreen = false;
// check for command-line window size
if ((pnum = COM_CheckParm("-winsize"))) {
if (pnum >= com_argc - 2)
Sys_Error("VID: -winsize <width> <height>");
vid.width = Q_atoi(com_argv[pnum + 1]);
vid.height = Q_atoi(com_argv[pnum + 2]);
if (!vid.width || !vid.height)
Sys_Error("VID: Bad window width/height");
}
if ((pnum = COM_CheckParm("-width"))) {
if (pnum >= com_argc - 1)
Sys_Error("VID: -width <width>");
vid.width = Q_atoi(com_argv[pnum + 1]);
if (!vid.width)
Sys_Error("VID: Bad window width");
}
if ((pnum = COM_CheckParm("-height"))) {
if (pnum >= com_argc - 1)
Sys_Error("VID: -height <height>");
vid.height = Q_atoi(com_argv[pnum + 1]);
if (!vid.height || vid.height > MAXHEIGHT)
Sys_Error("VID: Bad window height");
}
// specify a visual id
if ((pnum = COM_CheckParm("-visualid"))) {
if (pnum >= com_argc - 1)
Sys_Error("VID: -visualid <id#>");
template.visualid = Q_atoi(com_argv[pnum + 1]);
template_mask = VisualIDMask;
}
// If not specified, use default visual
else {
int screen;
screen = DefaultScreen(x_disp);
template.visualid =
XVisualIDFromVisual(XDefaultVisual(x_disp, screen));
template_mask = VisualIDMask;
}
// pick a visual- warn if more than one was available
x_visinfo =
XGetVisualInfo(x_disp, template_mask, &template, &num_visuals);
if (num_visuals > 1) {
printf("Found more than one visual id at depth %d:\n",
template.depth);
for (i = 0; i < num_visuals; i++)
printf(" -visualid %d\n", (int)(x_visinfo[i].visualid));
} else if (num_visuals == 0) {
if (template_mask == VisualIDMask)
Sys_Error("VID: Bad visual id %lu",
(unsigned long)template.visualid);
else
Sys_Error("VID: No visuals at depth %u", template.depth);
}
if (verbose) {
printf("Using visualid %d:\n", (int)(x_visinfo->visualid));
printf(" screen %d\n", x_visinfo->screen);
printf(" red_mask 0x%x\n", (int)(x_visinfo->red_mask));
printf(" green_mask 0x%x\n", (int)(x_visinfo->green_mask));
printf(" blue_mask 0x%x\n", (int)(x_visinfo->blue_mask));
printf(" colormap_size %d\n", x_visinfo->colormap_size);
printf(" bits_per_rgb %d\n", x_visinfo->bits_per_rgb);
}
x_vis = x_visinfo->visual;
root = XRootWindow(x_disp, x_visinfo->screen);
/* Attempt to set the vidmode if needed */
if (vidmode_ext && fullscreen)
fullscreen = VID_set_vidmode(vid.width, vid.height);
/* window attributes */
mask = CWEventMask | CWColormap | CWBackPixel;
attr.background_pixel = 0;
attr.colormap = XCreateColormap(x_disp, root, x_vis, AllocNone);
attr.event_mask = X_CORE_MASK | X_KEY_MASK | X_MOUSE_MASK;
if (vidmode_active) {
mask |= CWSaveUnder | CWBackingStore | CWOverrideRedirect;
attr.override_redirect = True;
attr.backing_store = NotUseful;
attr.save_under = False;
} else {
mask |= CWBorderPixel;
attr.border_pixel = 0;
}
// create the main window
x_win = XCreateWindow(x_disp, XRootWindow(x_disp, x_visinfo->screen),
0, 0, // x, y
vid.width, vid.height, 0, // borderwidth
x_visinfo->depth,
InputOutput, x_vis, mask, &attr);
XStoreName(x_disp, x_win, "Tyr-Quake");
if (x_visinfo->depth == 8) {
// create and upload the palette
if (x_visinfo->class == PseudoColor) {
x_cmap = XCreateColormap(x_disp, x_win, x_vis, AllocAll);
VID_SetPalette(palette);
XSetWindowColormap(x_disp, x_win, x_cmap);
}
}
// create the GC
{
XGCValues xgcvalues;
int valuemask = GCGraphicsExposures;
xgcvalues.graphics_exposures = False;
x_gc = XCreateGC(x_disp, x_win, valuemask, &xgcvalues);
}
// map the window
XMapWindow(x_disp, x_win);
if (vidmode_active) {
XMoveWindow(x_disp, x_win, 0, 0);
XRaiseWindow(x_disp, x_win);
// FIXME - mouse may not be active...
IN_CenterMouse();
XFlush(x_disp);
XF86VidModeSetViewPort(x_disp, x_visinfo->screen, 0, 0);
}
// wait for first exposure event
{
XEvent event;
do {
XNextEvent(x_disp, &event);
if (event.type == Expose && !event.xexpose.count)
oktodraw = true;
} while (!oktodraw);
}
// now safe to draw
// even if MITSHM is available, make sure it's a local connection
if (XShmQueryExtension(x_disp)) {
char *displayname;
doShm = true;
displayname = (char *)getenv("DISPLAY");
if (displayname) {
char *d = displayname;
while (*d && (*d != ':'))
d++;
if (*d)
*d = 0;
if (!(!strcasecmp(displayname, "unix") || !*displayname))
doShm = false;
}
}
if (doShm) {
x_shmeventtype = XShmGetEventBase(x_disp) + ShmCompletion;
ResetSharedFrameBuffers();
} else
ResetFrameBuffer();
current_framebuffer = 0;
vid.rowbytes = x_framebuffer[0]->bytes_per_line;
vid.buffer = (byte *)x_framebuffer[0]->data;
vid.direct = 0;
vid.conbuffer = vid.buffer;
vid.conrowbytes = vid.rowbytes;
vid.conwidth = vid.width;
vid.conheight = vid.height;
vid.aspect = ((float)vid.height / (float)vid.width) * (320.0 / 240.0);
#if 0
/*
* FIXME - make this configurable; e.g. this makes the aspect ratio look
* correct on my non-standard (widescreen) laptop screen
*/
vid.aspect = ((float)vid.height / (float)vid.width) * (1280.0 / 600.0);
#endif
// XSynchronize(x_disp, False);
}
void
VID_ShiftPalette(unsigned char *p)
{
VID_SetPalette(p);
}
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 = palette[i * 3] * 257;
colors[i].green = palette[i * 3 + 1] * 257;
colors[i].blue = palette[i * 3 + 2] * 257;
}
XStoreColors(x_disp, x_cmap, colors, 256);
}
}
// Called at shutdown
void
VID_Shutdown(void)
{
Con_Printf("VID_Shutdown\n");
VID_restore_vidmode();
XAutoRepeatOn(x_disp);
XCloseDisplay(x_disp);
}
static int
XLateKey(XKeyEvent * ev)
{
int key;
char buf[64];
KeySym keysym;
XLookupString(ev, buf, sizeof(buf), &keysym, 0);
switch (keysym) {
case XK_KP_Page_Up:
case XK_Page_Up:
key = K_PGUP;
break;
case XK_KP_Page_Down:
case XK_Page_Down:
key = K_PGDN;
break;
case XK_KP_Home:
case XK_Home:
key = K_HOME;
break;
case XK_KP_End:
case XK_End:
key = K_END;
break;
case XK_KP_Left:
case XK_Left:
key = K_LEFTARROW;
break;
case XK_KP_Right:
case XK_Right:
key = K_RIGHTARROW;
break;
case XK_KP_Down:
case XK_Down:
key = K_DOWNARROW;
break;
case XK_KP_Up:
case XK_Up:
key = K_UPARROW;
break;
case XK_Escape:
key = K_ESCAPE;
break;
case XK_KP_Enter:
case XK_Return:
key = K_ENTER;
break;
case XK_Tab:
key = K_TAB;
break;
case XK_F1:
key = K_F1;
break;
case XK_F2:
key = K_F2;
break;
case XK_F3:
key = K_F3;
break;
case XK_F4:
key = K_F4;
break;
case XK_F5:
key = K_F5;
break;
case XK_F6:
key = K_F6;
break;
case XK_F7:
key = K_F7;
break;
case XK_F8:
key = K_F8;
break;
case XK_F9:
key = K_F9;
break;
case XK_F10:
key = K_F10;
break;
case XK_F11:
key = K_F11;
break;
case XK_F12:
key = K_F12;
break;
case XK_BackSpace:
key = K_BACKSPACE;
break;
case XK_KP_Delete:
case XK_Delete:
key = K_DEL;
break;
case XK_Pause:
key = K_PAUSE;
break;
case XK_Shift_L:
key = K_LSHIFT;
break;
case XK_Shift_R:
key = K_RSHIFT;
break;
case XK_Execute:
case XK_Control_L:
key = K_LCTRL;
break;
case XK_Control_R:
key = K_RCTRL;
break;
case XK_Alt_L:
key = K_LALT;
break;
case XK_Meta_L:
key = K_LMETA;
break;
case XK_Alt_R:
key = K_RALT;
break;
case XK_Meta_R:
key = K_RMETA;
break;
case XK_KP_Begin:
case XK_KP_5:
key = '5';
break;
case XK_Insert:
case XK_KP_Insert:
key = K_INS;
break;
case XK_KP_Multiply:
key = '*';
break;
case XK_KP_Add:
key = '+';
break;
case XK_KP_Subtract:
key = '-';
break;
case XK_KP_Divide:
key = '/';
break;
default:
key = *(unsigned char *)buf;
if (key >= 'A' && key <= 'Z')
key = key - 'A' + 'a';
break;
}
return key;
}
static int config_notify = 0;
static int config_notify_width;
static int config_notify_height;
static void
HandleEvents(void)
{
XEvent x_event;
qboolean dowarp = false;
if (!x_disp)
return;
while (XPending(x_disp)) {
XNextEvent(x_disp, &x_event);
switch (x_event.type) {
case KeyPress:
case KeyRelease:
Key_Event(XLateKey(&x_event.xkey), x_event.type == KeyPress);
break;
case MotionNotify:
if (mouse_grab_active) {
#ifdef USE_XF86DGA
if (dga_mouse_active) {
mouse_x += x_event.xmotion.x_root;
mouse_y += x_event.xmotion.y_root;
} else {
#endif
mouse_x = x_event.xmotion.x - (int)(vid.width / 2);
mouse_y = x_event.xmotion.y - (int)(vid.height / 2);
if (mouse_x || mouse_y)
dowarp = true;
#ifdef USE_XF86DGA
}
#endif
}
break;
case ButtonPress:
if (x_event.xbutton.button == 1)
Key_Event(K_MOUSE1, true);
else if (x_event.xbutton.button == 2)
Key_Event(K_MOUSE3, true);
else if (x_event.xbutton.button == 3)
Key_Event(K_MOUSE2, true);
else if (x_event.xbutton.button == 4)
Key_Event(K_MWHEELUP, true);
else if (x_event.xbutton.button == 5)
Key_Event(K_MWHEELDOWN, true);
else if (x_event.xbutton.button == 6)
Key_Event(K_MOUSE4, true);
else if (x_event.xbutton.button == 7)
Key_Event(K_MOUSE5, true);
else if (x_event.xbutton.button == 8)
Key_Event(K_MOUSE6, true);
else if (x_event.xbutton.button == 9)
Key_Event(K_MOUSE7, true);
else if (x_event.xbutton.button == 10)
Key_Event(K_MOUSE8, true);
break;
case ButtonRelease:
if (x_event.xbutton.button == 1)
Key_Event(K_MOUSE1, false);
else if (x_event.xbutton.button == 2)
Key_Event(K_MOUSE3, false);
else if (x_event.xbutton.button == 3)
Key_Event(K_MOUSE2, false);
else if (x_event.xbutton.button == 4)
Key_Event(K_MWHEELUP, false);
else if (x_event.xbutton.button == 5)
Key_Event(K_MWHEELDOWN, false);
else if (x_event.xbutton.button == 6)
Key_Event(K_MOUSE4, false);
else if (x_event.xbutton.button == 7)
Key_Event(K_MOUSE5, false);
else if (x_event.xbutton.button == 8)
Key_Event(K_MOUSE6, false);
else if (x_event.xbutton.button == 9)
Key_Event(K_MOUSE7, false);
else if (x_event.xbutton.button == 10)
Key_Event(K_MOUSE8, false);
break;
case ConfigureNotify:
/*
* FIXME - I think something is still broken here. Why do I keep
* receiving these events?
*/
if (x_event.xconfigure.width != config_notify_width ||
x_event.xconfigure.height != config_notify_height) {
config_notify_width = x_event.xconfigure.width;
config_notify_height = x_event.xconfigure.height;
config_notify = 1;
}
break;
default:
if (doShm && x_event.type == x_shmeventtype)
oktodraw = true;
}
}
if (dowarp)
IN_CenterMouse();
}
// flushes 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;
if (doShm)
ResetSharedFrameBuffers();
else
ResetFrameBuffer();
vid.rowbytes = x_framebuffer[0]->bytes_per_line;
vid.buffer = (byte *)x_framebuffer[current_framebuffer]->data;
vid.conbuffer = vid.buffer;
vid.conwidth = vid.width;
vid.conheight = vid.height;
vid.conrowbytes = vid.rowbytes;
vid.recalc_refdef = 1; // force a surface cache flush
Con_CheckResize();
Con_Clear_f();
return;
}
// force full update if not 8bit
if (x_visinfo->depth != 8)
scr_fullupdate = 0;
if (doShm) {
while (rects) {
if (x_visinfo->depth == 16) {
st2_fixup(x_framebuffer[current_framebuffer],
rects->x, rects->y, rects->width, rects->height);
} else if (x_visinfo->depth == 24) {
st3_fixup(x_framebuffer[current_framebuffer],
rects->x, rects->y, rects->width, rects->height);
}
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");
oktodraw = false;
while (!oktodraw)
HandleEvents();
rects = rects->pnext;
}
current_framebuffer = !current_framebuffer;
vid.buffer = (byte *)x_framebuffer[current_framebuffer]->data;
vid.conbuffer = vid.buffer;
XSync(x_disp, False);
} else {
while (rects) {
if (x_visinfo->depth == 16)
st2_fixup(x_framebuffer[current_framebuffer],
rects->x, rects->y, rects->width, rects->height);
else if (x_visinfo->depth == 24)
st3_fixup(x_framebuffer[current_framebuffer],
rects->x, rects->y, rects->width, rects->height);
XPutImage(x_disp, x_win, x_gc, x_framebuffer[0], rects->x,
rects->y, rects->x, rects->y, rects->width,
rects->height);
rects = rects->pnext;
}
XSync(x_disp, False);
}
}
void
Sys_SendKeyEvents(void)
{
HandleEvents();
}
void
D_BeginDirectRect(int x, int y, const byte *pbitmap, int width, int height)
{
// direct drawing of the "accessing disk" icon isn't supported under Linux
}
void
D_EndDirectRect(int x, int y, int width, int height)
{
// direct drawing of the "accessing disk" icon isn't supported under Linux
}
void
VID_LockBuffer(void)
{
}
void
VID_UnlockBuffer(void)
{
}
qboolean
VID_IsFullScreen()
{
return vidmode_active;
}
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