forked from enlightenment/efl
128 lines
3.1 KiB
C
128 lines
3.1 KiB
C
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#include "Ecore_Fb.h"
|
|
#include "ecore_fb_private.h"
|
|
|
|
static void _ecore_fb_size_get(int *w, int *h);
|
|
|
|
EAPI int ECORE_FB_EVENT_KEY_DOWN = 0;
|
|
EAPI int ECORE_FB_EVENT_KEY_UP = 0;
|
|
EAPI int ECORE_FB_EVENT_MOUSE_BUTTON_DOWN = 0;
|
|
EAPI int ECORE_FB_EVENT_MOUSE_BUTTON_UP = 0;
|
|
EAPI int ECORE_FB_EVENT_MOUSE_MOVE = 0;
|
|
EAPI int ECORE_FB_EVENT_MOUSE_WHEEL = 0;
|
|
|
|
static int _ecore_fb_init_count = 0;
|
|
static int _ecore_fb_console_w = 0;
|
|
static int _ecore_fb_console_h = 0;
|
|
|
|
/**
|
|
* @addtogroup Ecore_FB_Group Ecore_FB - Frame buffer convenience functions.
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Initialize the Ecore_Fb library.
|
|
*
|
|
* @param name Device target name.
|
|
* @return 1 or greater on success, 0 on error.
|
|
*
|
|
* This function sets up all the Ecore_Fb library. It returns 0 on
|
|
* failure, otherwise it returns the number of times it has already
|
|
* been called.
|
|
*
|
|
* When Ecore_Fb is not used anymore, call ecore_fb_shutdown() to shut down
|
|
* the Ecore_Fb library.
|
|
*/
|
|
EAPI int
|
|
ecore_fb_init(const char *name __UNUSED__)
|
|
{
|
|
if (++_ecore_fb_init_count != 1)
|
|
return _ecore_fb_init_count;
|
|
|
|
if (!ecore_fb_vt_init())
|
|
return --_ecore_fb_init_count;
|
|
|
|
ECORE_FB_EVENT_KEY_DOWN = ecore_event_type_new();
|
|
ECORE_FB_EVENT_KEY_UP = ecore_event_type_new();
|
|
ECORE_FB_EVENT_MOUSE_BUTTON_DOWN = ecore_event_type_new();
|
|
ECORE_FB_EVENT_MOUSE_BUTTON_UP = ecore_event_type_new();
|
|
ECORE_FB_EVENT_MOUSE_MOVE = ecore_event_type_new();
|
|
ECORE_FB_EVENT_MOUSE_WHEEL = ecore_event_type_new();
|
|
_ecore_fb_size_get(&_ecore_fb_console_w, &_ecore_fb_console_h);
|
|
|
|
return _ecore_fb_init_count;
|
|
}
|
|
|
|
/**
|
|
* @brief Shut down the Ecore_Fb library.
|
|
*
|
|
* @return 0 when the library is completely shut down, 1 or
|
|
* greater otherwise.
|
|
*
|
|
* This function shuts down the Ecore_Fb library. It returns 0 when it has
|
|
* been called the same number of times than ecore_fb_init().
|
|
*/
|
|
EAPI int
|
|
ecore_fb_shutdown(void)
|
|
{
|
|
if (--_ecore_fb_init_count != 0)
|
|
return _ecore_fb_init_count;
|
|
|
|
ecore_fb_vt_shutdown();
|
|
|
|
return _ecore_fb_init_count;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Retrieve the width and height of the current frame buffer in
|
|
* pixels.
|
|
*
|
|
* @param w Pointer to an integer in which to store the width.
|
|
* @param h Pointer to an interge in which to store the height.
|
|
*
|
|
* This function retrieves the size of the current frame buffer in
|
|
* pixels. @p w and @p h can be buffers that will be filled with the
|
|
* corresponding values. If one of them is @c NULL, nothing will be
|
|
* done for that parameter.
|
|
*/
|
|
EAPI void
|
|
ecore_fb_size_get(int *w, int *h)
|
|
{
|
|
if (w) *w = _ecore_fb_console_w;
|
|
if (h) *h = _ecore_fb_console_h;
|
|
}
|
|
|
|
static void
|
|
_ecore_fb_size_get(int *w, int *h)
|
|
{
|
|
struct fb_var_screeninfo fb_var;
|
|
int fb;
|
|
|
|
fb = open("/dev/fb0", O_RDWR);
|
|
if (fb < 0)
|
|
{
|
|
if (w) *w = 0;
|
|
if (h) *h = 0;
|
|
return;
|
|
}
|
|
if (ioctl(fb, FBIOGET_VSCREENINFO, &fb_var) == -1)
|
|
{
|
|
if (w) *w = 0;
|
|
if (h) *h = 0;
|
|
close(fb);
|
|
return;
|
|
}
|
|
close(fb);
|
|
if (w) *w = fb_var.xres;
|
|
if (h) *h = fb_var.yres;
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|