forked from enlightenment/efl
112 lines
2.6 KiB
C
112 lines
2.6 KiB
C
/*
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* vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "Ecore_Fb.h"
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#include "ecore_fb_private.h"
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static void _ecore_fb_size_get(int *w, int *h);
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EAPI int ECORE_FB_EVENT_KEY_DOWN = 0;
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EAPI int ECORE_FB_EVENT_KEY_UP = 0;
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EAPI int ECORE_FB_EVENT_MOUSE_BUTTON_DOWN = 0;
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EAPI int ECORE_FB_EVENT_MOUSE_BUTTON_UP = 0;
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EAPI int ECORE_FB_EVENT_MOUSE_MOVE = 0;
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EAPI int ECORE_FB_EVENT_MOUSE_WHEEL = 0;
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static int _ecore_fb_init_count = 0;
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static int _ecore_fb_console_w = 0;
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static int _ecore_fb_console_h = 0;
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static double _ecore_fb_double_click_time = 0.25;
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/**
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* @defgroup Ecore_FB_Library_Group Framebuffer Library Functions
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*
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* Functions used to set up and shut down the Ecore_Framebuffer functions.
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*/
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/**
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* Sets up the Ecore_Fb library.
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* @param name device target name
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* @return @c 0 on failure. Otherwise, the number of times the library has
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* been initialised without being shut down.
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* @ingroup Ecore_FB_Library_Group
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*/
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EAPI int
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ecore_fb_init(const char *name __UNUSED__)
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{
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if(!_ecore_fb_init_count)
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{
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if(!ecore_fb_vt_init()) return 0;
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ECORE_FB_EVENT_KEY_DOWN = ecore_event_type_new();
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ECORE_FB_EVENT_KEY_UP = ecore_event_type_new();
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ECORE_FB_EVENT_MOUSE_BUTTON_DOWN = ecore_event_type_new();
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ECORE_FB_EVENT_MOUSE_BUTTON_UP = ecore_event_type_new();
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ECORE_FB_EVENT_MOUSE_MOVE = ecore_event_type_new();
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ECORE_FB_EVENT_MOUSE_WHEEL = ecore_event_type_new();
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_ecore_fb_size_get(&_ecore_fb_console_w, &_ecore_fb_console_h);
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}
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return ++_ecore_fb_init_count;
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}
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/**
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* Shuts down the Ecore_Fb library.
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* @return @c The number of times the system has been initialised without
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* being shut down.
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* @ingroup Ecore_FB_Library_Group
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*/
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EAPI int
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ecore_fb_shutdown(void)
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{
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_ecore_fb_init_count--;
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if(!_ecore_fb_init_count)
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{
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ecore_fb_vt_shutdown();
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return 0;
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}
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return _ecore_fb_init_count;
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}
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/**
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* Retrieves the width and height of the current frame buffer in pixels.
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* @param w Pointer to an integer in which to store the width.
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* @param h Pointer to an interge in which to store the height.
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*/
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EAPI void
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ecore_fb_size_get(int *w, int *h)
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{
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if (w) *w = _ecore_fb_console_w;
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if (h) *h = _ecore_fb_console_h;
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}
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static void
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_ecore_fb_size_get(int *w, int *h)
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{
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struct fb_var_screeninfo fb_var;
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int fb;
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fb = open("/dev/fb0", O_RDWR);
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if (fb < 0)
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{
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if (w) *w = 0;
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if (h) *h = 0;
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return;
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}
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if (ioctl(fb, FBIOGET_VSCREENINFO, &fb_var) == -1)
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{
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if (w) *w = 0;
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if (h) *h = 0;
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return;
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}
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close(fb);
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if (w) *w = fb_var.xres;
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if (h) *h = fb_var.yres;
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}
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