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Split up screen_scan() 

This splits up screen_scan() into screen_scan_randr(), screen_scan_xinerama()
and screen_scan_x11(). These function try to set up screens via RANDR, Xinerama
and the classic core protcol setup.

No code in these functions was actually changed, only some indentation was
changed (and a "return true/false" added to the first two functions).

Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit is contained in:
Uli Schlachter 2010-07-21 14:42:45 +02:00
parent 37703948b3
commit 7bf1370502
1 changed files with 88 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

156
screen.c
View File

@ -72,10 +72,8 @@ screen_default_visual(xcb_screen_t *s)
return NULL;
}
/** Get screens informations and fill global configuration.
*/
void
screen_scan(void)
static bool
screen_scan_randr(void)
{
/* Check for extension before checking for XRandR */
if(xcb_get_extension_data(globalconf.connection, &xcb_randr_id)->present)
@ -146,81 +144,103 @@ screen_scan(void)
globalconf.xinerama_is_active = true;
globalconf.screens.tab[0].visual = screen_default_visual(xutil_screen_get(globalconf.connection, globalconf.default_screen));
return true;
}
}
else
return false;
}
static bool
screen_scan_xinerama(void)
{
/* Check for extension before checking for Xinerama */
if(xcb_get_extension_data(globalconf.connection, &xcb_xinerama_id)->present)
{
/* Check for extension before checking for Xinerama */
if(xcb_get_extension_data(globalconf.connection, &xcb_xinerama_id)->present)
xcb_xinerama_is_active_reply_t *xia;
xia = xcb_xinerama_is_active_reply(globalconf.connection, xcb_xinerama_is_active(globalconf.connection), NULL);
globalconf.xinerama_is_active = xia->state;
p_delete(&xia);
}
if(globalconf.xinerama_is_active)
{
xcb_xinerama_query_screens_reply_t *xsq;
xcb_xinerama_screen_info_t *xsi;
int xinerama_screen_number;
xsq = xcb_xinerama_query_screens_reply(globalconf.connection,
xcb_xinerama_query_screens_unchecked(globalconf.connection),
NULL);
xsi = xcb_xinerama_query_screens_screen_info(xsq);
xinerama_screen_number = xcb_xinerama_query_screens_screen_info_length(xsq);
/* now check if screens overlaps (same x,y): if so, we take only the biggest one */
for(int screen = 0; screen < xinerama_screen_number; screen++)
{
xcb_xinerama_is_active_reply_t *xia;
xia = xcb_xinerama_is_active_reply(globalconf.connection, xcb_xinerama_is_active(globalconf.connection), NULL);
globalconf.xinerama_is_active = xia->state;
p_delete(&xia);
}
if(globalconf.xinerama_is_active)
{
xcb_xinerama_query_screens_reply_t *xsq;
xcb_xinerama_screen_info_t *xsi;
int xinerama_screen_number;
xsq = xcb_xinerama_query_screens_reply(globalconf.connection,
xcb_xinerama_query_screens_unchecked(globalconf.connection),
NULL);
xsi = xcb_xinerama_query_screens_screen_info(xsq);
xinerama_screen_number = xcb_xinerama_query_screens_screen_info_length(xsq);
/* now check if screens overlaps (same x,y): if so, we take only the biggest one */
for(int screen = 0; screen < xinerama_screen_number; screen++)
bool drop = false;
foreach(screen_to_test, globalconf.screens)
if(xsi[screen].x_org == screen_to_test->geometry.x
&& xsi[screen].y_org == screen_to_test->geometry.y)
{
/* we already have a screen for this area, just check if
* it's not bigger and drop it */
drop = true;
int i = screen_array_indexof(&globalconf.screens, screen_to_test);
screen_to_test->geometry.width =
MAX(xsi[screen].width, xsi[i].width);
screen_to_test->geometry.height =
MAX(xsi[screen].height, xsi[i].height);
}
if(!drop)
{
bool drop = false;
foreach(screen_to_test, globalconf.screens)
if(xsi[screen].x_org == screen_to_test->geometry.x
&& xsi[screen].y_org == screen_to_test->geometry.y)
{
/* we already have a screen for this area, just check if
* it's not bigger and drop it */
drop = true;
int i = screen_array_indexof(&globalconf.screens, screen_to_test);
screen_to_test->geometry.width =
MAX(xsi[screen].width, xsi[i].width);
screen_to_test->geometry.height =
MAX(xsi[screen].height, xsi[i].height);
}
if(!drop)
{
screen_t s;
p_clear(&s, 1);
s.geometry = screen_xsitoarea(xsi[screen]);
screen_array_append(&globalconf.screens, s);
}
}
p_delete(&xsq);
xcb_screen_t *s = xutil_screen_get(globalconf.connection, globalconf.default_screen);
globalconf.screens.tab[0].visual = screen_default_visual(s);
}
else
/* One screen only / Zaphod mode */
for(int screen = 0;
screen < xcb_setup_roots_length(xcb_get_setup(globalconf.connection));
screen++)
{
xcb_screen_t *xcb_screen = xutil_screen_get(globalconf.connection, screen);
screen_t s;
p_clear(&s, 1);
s.geometry.x = 0;
s.geometry.y = 0;
s.geometry.width = xcb_screen->width_in_pixels;
s.geometry.height = xcb_screen->height_in_pixels;
s.visual = screen_default_visual(xcb_screen);
s.geometry = screen_xsitoarea(xsi[screen]);
screen_array_append(&globalconf.screens, s);
}
}
p_delete(&xsq);
xcb_screen_t *s = xutil_screen_get(globalconf.connection, globalconf.default_screen);
globalconf.screens.tab[0].visual = screen_default_visual(s);
return true;
}
return false;
}
static void screen_scan_x11(void)
{
/* One screen only / Zaphod mode */
for(int screen = 0;
screen < xcb_setup_roots_length(xcb_get_setup(globalconf.connection));
screen++)
{
xcb_screen_t *xcb_screen = xutil_screen_get(globalconf.connection, screen);
screen_t s;
p_clear(&s, 1);
s.geometry.x = 0;
s.geometry.y = 0;
s.geometry.width = xcb_screen->width_in_pixels;
s.geometry.height = xcb_screen->height_in_pixels;
s.visual = screen_default_visual(xcb_screen);
screen_array_append(&globalconf.screens, s);
}
}
/** Get screens informations and fill global configuration.
*/
void
screen_scan(void)
{
if(!screen_scan_randr() && !screen_scan_xinerama())
screen_scan_x11();
globalconf.screen_focus = globalconf.screens.tab;
}