static int test_query(void)
{
x11display_t x11disp;
// TEST isextxrandr_x11display
x11disp.xrandr.isSupported = true ;
TEST(true == isextxrandr_x11display(&x11disp)) ;
x11disp.xrandr.isSupported = false ;
TEST(false == isextxrandr_x11display(&x11disp)) ;
// TEST isfree_x11display
memset(&x11disp, 255, sizeof(x11disp));
TEST(0 == isfree_x11display(&x11disp));
x11disp.idmap = 0;
TEST(0 == isfree_x11display(&x11disp));
x11disp.sys_display = 0;
TEST(1 == isfree_x11display(&x11disp));
// TEST sysdisplay_x11display
for (uintptr_t i = 15; i <= 15; --i) {
x11disp.sys_display = (void*)i;
TEST((struct sys_display_t*)i == sysdisplay_x11display(&x11disp));
}
// TEST io_x11display
TEST(0 == init_x11display(&x11disp, ":0.0"));
TEST(0 == isfree_x11display(&x11disp));
TEST(0 < io_x11display(&x11disp));
int fd = io_x11display(&x11disp);
TEST(0 == free_x11display(&x11disp));
TEST(1 == isfree_x11display(&x11disp));
// TEST io_x11display: same fd
TEST(0 == init_x11display(&x11disp, ":0.0"));
TEST(fd == io_x11display(&x11disp));
TEST(0 == free_x11display(&x11disp));
// TEST errorstring_x11display: last char is set to 0
char errstr[100] ;
char errstr2[100] ;
memset(errstr, 1, sizeof(errstr)) ;
memset(errstr2, 1, sizeof(errstr2)) ;
TEST(0 == init_x11display(&x11disp, ":0.0")) ;
TEST(sizeof(errstr) == strnlen(errstr, sizeof(errstr))) ;
errorstring_x11display(&x11disp, 1, errstr, sizeof(errstr)) ;
uint8_t errlen = (uint8_t) strnlen(errstr, sizeof(errstr)) ;
TEST(2 < errlen) ;
TEST(sizeof(errstr) > errlen) ;
errorstring_x11display(&x11disp, 1, errstr2, errlen) ;
TEST(0 == strncmp(errstr, errstr2, (uint8_t)(errlen-2))) ;
TEST(0 != errstr[errlen-1]) ;
TEST(0 == errstr2[errlen-1]) ;
memset(errstr, 1, sizeof(errstr)) ;
TEST(0 == memcmp(errstr, errstr2 + errlen, sizeof(errstr2)-errlen)) ;
TEST(0 == free_x11display(&x11disp)) ;
return 0 ;
ONERR:
return EINVAL ;
}
int set_x11videomode(const x11videomode_t * xvidmode, x11screen_t * x11screen)
{
int err ;
XRRScreenConfiguration * screen_config = 0 ;
if (!isextxrandr_x11display(display_x11screen(x11screen))) {
err = ENOSYS ;
goto ONERR;
}
Display * sys_display = display_x11screen(x11screen)->sys_display ;
screen_config = XRRGetScreenInfo(sys_display, RootWindow(sys_display, number_x11screen(x11screen))) ;
if (!screen_config) {
err = ENOSYS ;
goto ONERR;
}
Rotation current_rotation ;
uint16_t current_size = XRRConfigCurrentConfiguration(screen_config, ¤t_rotation) ;
int sizes_count ;
XRRScreenSize * sizes = XRRConfigSizes(screen_config, &sizes_count) ;
if ( !sizes
|| (current_size >= sizes_count)) {
err = EOVERFLOW ;
goto ONERR;
}
if ( xvidmode->modeid > sizes_count
|| xvidmode->width_in_pixel != (uint32_t) sizes[xvidmode->modeid].width
|| xvidmode->height_in_pixel != (uint32_t) sizes[xvidmode->modeid].height) {
err = EINVAL ;
goto ONERR;
}
if (XRRSetScreenConfig( sys_display, screen_config,
RootWindow(sys_display, number_x11screen(x11screen)),
xvidmode->modeid, current_rotation, CurrentTime)) {
err = EOPNOTSUPP ;
goto ONERR;
}
XRRFreeScreenConfigInfo(screen_config) ;
return 0 ;
ONERR:
if (screen_config) {
XRRFreeScreenConfigInfo(screen_config) ;
}
TRACEEXIT_ERRLOG(err);
return err ;
}
int initcurrent_x11videomode(/*out*/x11videomode_t * current_xvidmode, x11screen_t * x11screen)
{
int err ;
XRRScreenConfiguration * screen_config = 0 ;
if (!isextxrandr_x11display(display_x11screen(x11screen))) {
err = ENOSYS ;
goto ONERR;
}
Display * sys_display = display_x11screen(x11screen)->sys_display ;
screen_config = XRRGetScreenInfo(sys_display, RootWindow(sys_display, number_x11screen(x11screen))) ;
if (!screen_config) {
err = ENOSYS ;
goto ONERR;
}
Rotation current_rotation ;
uint16_t current_size = XRRConfigCurrentConfiguration(screen_config, ¤t_rotation) ;
int sizes_count ;
XRRScreenSize * sizes = XRRConfigSizes(screen_config, &sizes_count) ;
if ( !sizes
|| (current_size >= sizes_count)) {
err = EOVERFLOW ;
goto ONERR;
}
current_xvidmode->modeid = current_size ;
current_xvidmode->width_in_pixel = (uint32_t) sizes[current_size].width ;
current_xvidmode->height_in_pixel = (uint32_t) sizes[current_size].height ;
XRRFreeScreenConfigInfo(screen_config) ;
return 0 ;
ONERR:
if (screen_config) {
XRRFreeScreenConfigInfo(screen_config) ;
}
TRACEEXIT_ERRLOG(err);
return err ;
}
int init_x11videomodeiterator(/*out*/x11videomode_iterator_t * xvidit, x11screen_t * x11screen)
{
int err ;
XRRScreenConfiguration * screen_config = 0 ;
if (!isextxrandr_x11display(display_x11screen(x11screen))) {
err = ENOSYS ;
goto ONERR;
}
Display * sys_display = display_x11screen(x11screen)->sys_display ;
screen_config = XRRGetScreenInfo(sys_display, RootWindow(sys_display, number_x11screen(x11screen))) ;
if (!screen_config) {
err = ENOSYS ;
goto ONERR;
}
int sizes_count ;
XRRScreenSize * sizes = XRRConfigSizes(screen_config, &sizes_count) ;
if ( !sizes
|| (UINT16_MAX < (unsigned)sizes_count)) {
err = EOVERFLOW ;
goto ONERR;
}
xvidit->nextindex = 0 ;
xvidit->nrmodes = (uint16_t) sizes_count ;
xvidit->config = screen_config ;
return 0 ;
ONERR:
if (screen_config) {
XRRFreeScreenConfigInfo(screen_config) ;
}
TRACEEXIT_ERRLOG(err);
return err ;
}
