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/*
* $Id$
*
* Copyright © 2004 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include "twin_x11.h"
#include "twinint.h"
static void
_twin_x11_put_begin (twin_coord_t x,
twin_coord_t y,
twin_coord_t width,
twin_coord_t height,
void *closure)
{
twin_x11_t *tx = closure;
tx->iy = 0;
tx->image = XCreateImage (tx->dpy, tx->visual, tx->depth, ZPixmap,
0, 0, width, height, 32, 0);
if (tx->image)
{
tx->image->data = malloc (4 * width * height);
if (!tx->image->data)
{
XDestroyImage (tx->image);
tx->image = 0;
}
}
}
static void
_twin_x11_put_span (twin_coord_t x,
twin_coord_t y,
twin_coord_t width,
twin_argb32_t *pixels,
void *closure)
{
twin_x11_t *tx = closure;
twin_coord_t ix = 0;
twin_coord_t iw = width;
if (!tx->image)
return;
while (iw--)
{
twin_argb32_t pixel = *pixels++;
if (tx->depth == 16)
pixel = twin_argb32_to_rgb16 (pixel);
XPutPixel (tx->image, ix, tx->iy, pixel);
ix++;
}
tx->iy++;
if (tx->iy == tx->image->height)
{
XPutImage (tx->dpy, tx->win, tx->gc, tx->image, 0, 0,
x, (y + 1) - tx->iy, width, tx->image->height);
XDestroyImage (tx->image);
tx->image = 0;
}
}
static void *
twin_x11_damage_thread (void *arg)
{
twin_x11_t *tx = arg;
pthread_mutex_lock (&tx->screen->screen_mutex);
for (;;)
{
pthread_cond_wait (&tx->damage_cond, &tx->screen->screen_mutex);
if (!tx->win)
break;
if (twin_screen_damaged (tx->screen))
{
twin_x11_update (tx);
XFlush (tx->dpy);
}
}
pthread_mutex_unlock (&tx->screen->screen_mutex);
return 0;
}
static void *
twin_x11_event_thread (void *arg)
{
twin_x11_t *tx = arg;
XEvent ev;
for (;;)
{
XNextEvent (tx->dpy, &ev);
switch (ev.type) {
case Expose:
twin_x11_damage (tx, (XExposeEvent *) &ev);
break;
case DestroyNotify:
return 0;
}
}
}
static void
twin_x11_screen_damaged (void *closure)
{
twin_x11_t *tx = closure;
pthread_cond_broadcast (&tx->damage_cond);
}
twin_x11_t *
twin_x11_create (Display *dpy, int width, int height)
{
twin_x11_t *tx;
int scr = DefaultScreen (dpy);
XSetWindowAttributes wa;
XTextProperty wm_name, icon_name;
XSizeHints sizeHints;
XWMHints wmHints;
XClassHint classHints;
Atom wm_delete_window;
static char *argv[] = { "xtwin", 0 };
static int argc = 1;
tx = malloc (sizeof (twin_x11_t));
if (!tx)
return 0;
tx->dpy = dpy;
tx->visual = DefaultVisual (dpy, scr);
tx->depth = DefaultDepth (dpy, scr);
wa.background_pixmap = None;
wa.event_mask = (KeyPressMask|
KeyReleaseMask|
ButtonPressMask|
ButtonReleaseMask|
PointerMotionMask|
ExposureMask|
StructureNotifyMask);
wm_name.value = (unsigned char *) argv[0];
wm_name.encoding = XA_STRING;
wm_name.format = 8;
wm_name.nitems = strlen (wm_name.value) + 1;
icon_name = wm_name;
tx->win = XCreateWindow (dpy, RootWindow (dpy, scr),
0, 0, width, height, 0,
tx->depth, InputOutput,
tx->visual, CWBackPixmap|CWEventMask, &wa);
sizeHints.flags = 0;
wmHints.flags = InputHint;
wmHints.input = True;
classHints.res_name = argv[0];
classHints.res_class = argv[0];
XSetWMProperties (dpy, tx->win,
&wm_name, &icon_name,
argv, argc,
&sizeHints, &wmHints, 0);
XSetWMProtocols (dpy, tx->win, &wm_delete_window, 1);
tx->gc = XCreateGC (dpy, tx->win, 0, 0);
tx->screen = twin_screen_create (width, height, _twin_x11_put_begin,
_twin_x11_put_span, tx);
twin_screen_register_damaged (tx->screen, twin_x11_screen_damaged, tx);
XMapWindow (dpy, tx->win);
pthread_cond_init (&tx->damage_cond, NULL);
pthread_create (&tx->damage_thread, NULL, twin_x11_damage_thread, tx);
pthread_create (&tx->event_thread, NULL, twin_x11_event_thread, tx);
return tx;
}
void
twin_x11_destroy (twin_x11_t *tx)
{
XDestroyWindow (tx->dpy, tx->win);
tx->win = 0;
pthread_cond_broadcast (&tx->damage_cond);
twin_screen_destroy (tx->screen);
}
void
twin_x11_damage (twin_x11_t *tx, XExposeEvent *ev)
{
twin_screen_lock (tx->screen);
twin_screen_damage (tx->screen,
ev->x, ev->y, ev->x + ev->width, ev->y + ev->height);
twin_screen_unlock (tx->screen);
}
void
twin_x11_configure (twin_x11_t *tx, XConfigureEvent *ev)
{
twin_screen_resize (tx->screen, ev->width, ev->height);
}
void
twin_x11_update (twin_x11_t *tx)
{
twin_screen_update (tx->screen);
}
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