forked from enlightenment/efl
104 lines
2.5 KiB
C
104 lines
2.5 KiB
C
#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* ifdef HAVE_CONFIG_H */
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#include "ecore_x_private.h"
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#include "ecore_x_randr.h"
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static Eina_Bool _randr_available = EINA_FALSE;
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#ifdef ECORE_XRANDR
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static int _randr_major, _randr_minor;
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int _randr_version;
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#define RANDR_1_1 ((1 << 16) | 1)
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#define RANDR_1_2 ((1 << 16) | 2)
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#define RANDR_1_3 ((1 << 16) | 3)
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#define RANDR_VALIDATE_ROOT(screen, \
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root) ((screen = \
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XRRRootToScreen(_ecore_x_disp, \
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root)) != -1)
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#define Ecore_X_Randr_Unset -1
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XRRScreenResources *(*_ecore_x_randr_get_screen_resources)(Display * dpy,
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Window window);
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#endif /* ifdef ECORE_XRANDR */
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void
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_ecore_x_randr_init(void)
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{
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#ifdef ECORE_XRANDR
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_randr_major = 1;
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_randr_minor = 3;
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_randr_version = 0;
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_ecore_x_randr_get_screen_resources = NULL;
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if (XRRQueryVersion(_ecore_x_disp, &_randr_major, &_randr_minor))
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{
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_randr_version = (_randr_major << 16) | _randr_minor;
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if (_randr_version >= RANDR_1_3)
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_ecore_x_randr_get_screen_resources = XRRGetScreenResourcesCurrent;
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else if (_randr_version == RANDR_1_2)
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_ecore_x_randr_get_screen_resources = XRRGetScreenResources;
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_randr_available = EINA_TRUE;
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}
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else
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_randr_available = EINA_FALSE;
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#else
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_randr_available = EINA_FALSE;
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#endif
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}
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/*
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* @brief Query whether randr is available or not.
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*
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* @return @c EINA_TRUE, if extension is available, @c EINA_FALSE otherwise.
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*/
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EAPI Eina_Bool
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ecore_x_randr_query(void)
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{
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return _randr_available;
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}
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/*
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* @return version of the RandR extension supported by the server or, in case
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* RandR extension is not available, Ecore_X_Randr_Unset (=-1).
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* bit version information: 31 MAJOR 16 | 15 MINOR 0
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*/
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EAPI int
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ecore_x_randr_version_get(void)
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{
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#ifdef ECORE_XRANDR
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (_randr_available)
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{
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return _randr_version;
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}
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else
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{
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return Ecore_X_Randr_Unset;
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}
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#else
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return -1;
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#endif
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}
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Eina_Bool
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_ecore_x_randr_root_validate(Ecore_X_Window root)
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{
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#ifdef ECORE_XRANDR
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Ecore_X_Randr_Screen scr = -1;
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if (root && RANDR_VALIDATE_ROOT(scr, root))
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return EINA_TRUE;
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else
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return EINA_FALSE;
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#else
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return EINA_FALSE;
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#endif
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}
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