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#include "ecore_xcb_private.h"
# include <fcntl.h>
# include <dlfcn.h>
# include <X11/Xlib-xcb.h>
#define ECORE_XCB_VSYNC_DRI2 1
#define DRM_EVENT_CONTEXT_VERSION 2
#ifdef ECORE_XCB_VSYNC_DRI2
/* relevant header bits of dri/drm inlined here to avoid needing external */
/* headers to build drm */
typedef unsigned int drm_magic_t;
typedef enum
{
DRM_VBLANK_ABSOLUTE = 0x00000000,
DRM_VBLANK_RELATIVE = 0x00000001,
DRM_VBLANK_EVENT = 0x04000000,
DRM_VBLANK_FLIP = 0x08000000,
DRM_VBLANK_NEXTONMISS = 0x10000000,
DRM_VBLANK_SECONDARY = 0x20000000,
DRM_VBLANK_SIGNAL = 0x40000000
} drmVBlankSeqType;
typedef struct _drmVBlankReq
{
drmVBlankSeqType type;
unsigned int sequence;
unsigned long signal;
} drmVBlankReq;
typedef struct _drmVBlankReply
{
drmVBlankSeqType type;
unsigned int sequence;
long tval_sec, tval_usec;
} drmVBlankReply;
typedef union _drmVBlank
{
drmVBlankReq request;
drmVBlankReply reply;
} drmVBlank;
typedef struct _drmEventContext
{
int version;
void (*vblank_handler)(int fd,
unsigned int sequence,
unsigned int tv_sec,
unsigned int tv_usec,
void *user_data);
void (*page_flip_handler)(int fd,
unsigned int sequence,
unsigned int tv_sec,
unsigned int tv_usec,
void *user_data);
} drmEventContext;
static int (*sym_drmClose)(int fd) = NULL;
static int (*sym_drmGetMagic)(int fd,
drm_magic_t *magic) = NULL;
static int (*sym_drmWaitVBlank)(int fd,
drmVBlank *vbl) = NULL;
static int (*sym_drmHandleEvent)(int fd,
drmEventContext *evctx) = NULL;
/* dri */
static Bool (*sym_DRI2QueryExtension)(Display *display,
int *eventBase,
int *errorBase) = NULL;
static Bool (*sym_DRI2QueryVersion)(Display *display,
int *major,
int *minor) = NULL;
static Bool (*sym_DRI2Connect)(Display *display,
XID window,
char **driverName,
char **deviceName) = NULL;
static Bool (*sym_DRI2Authenticate)(Display *display,
XID window,
drm_magic_t magic) = NULL;
/* local function prototypes */
static Eina_Bool _ecore_xcb_dri_link(void);
static Eina_Bool _ecore_xcb_dri_start(void);
static void _ecore_xcb_dri_shutdown(void);
static Eina_Bool _ecore_xcb_dri_cb(void *data __UNUSED__,
Ecore_Fd_Handler *fdh __UNUSED__);
static void _ecore_xcb_dri_tick_begin(void *data __UNUSED__);
static void _ecore_xcb_dri_tick_end(void *data __UNUSED__);
static void _ecore_xcb_dri_tick_schedule(void);
static void _ecore_xcb_dri_vblank_handler(int fd __UNUSED__,
unsigned int frame __UNUSED__,
unsigned int sec __UNUSED__,
unsigned int usec __UNUSED__,
void *data __UNUSED__);
/* local variables */
static Ecore_X_Window _vsync_root = 0;
static int _drm_fd = -1;
static Ecore_Fd_Handler *_drm_fdh = NULL;
static unsigned int _drm_magic = 0;
static Eina_Bool _drm_event_busy = EINA_FALSE;
static void *_drm_lib = NULL;
static void *_dri_lib = NULL;
static drmEventContext _drm_evctx;
#endif
void
_ecore_xcb_dri_init(void)
{
LOGFN(__FILE__, __LINE__, __FUNCTION__);
}
void
_ecore_xcb_dri_finalize(void)
{
LOGFN(__FILE__, __LINE__, __FUNCTION__);
}
EAPI Eina_Bool
ecore_x_vsync_animator_tick_source_set(Ecore_X_Window win)
{
#ifdef ECORE_XCB_VSYNC_DRI2
Ecore_X_Window root;
#endif
LOGFN(__FILE__, __LINE__, __FUNCTION__);
CHECK_XCB_CONN;
#ifdef ECORE_XCB_VSYNC_DRI2
root = ecore_x_window_root_get(win);
if (root != _vsync_root)
{
_vsync_root = root;
if (_vsync_root)
{
if (!_ecore_xcb_dri_link())
{
ecore_animator_source_set(ECORE_ANIMATOR_SOURCE_TIMER);
return EINA_FALSE;
}
_ecore_xcb_dri_shutdown();
if (!_ecore_xcb_dri_start())
{
_vsync_root = 0;
ecore_animator_source_set(ECORE_ANIMATOR_SOURCE_TIMER);
return EINA_FALSE;
}
ecore_animator_custom_source_tick_begin_callback_set
(_ecore_xcb_dri_tick_begin, NULL);
ecore_animator_custom_source_tick_end_callback_set
(_ecore_xcb_dri_tick_end, NULL);
ecore_animator_source_set(ECORE_ANIMATOR_SOURCE_CUSTOM);
}
else
{
if (_drm_fd >= 0)
{
_ecore_xcb_dri_shutdown();
ecore_animator_custom_source_tick_begin_callback_set
(NULL, NULL);
ecore_animator_custom_source_tick_end_callback_set
(NULL, NULL);
ecore_animator_source_set(ECORE_ANIMATOR_SOURCE_TIMER);
}
}
}
return EINA_TRUE;
#else
return EINA_FALSE;
win = 0;
#endif
}
/* local functions */
#ifdef ECORE_XCB_VSYNC_DRI2
static Eina_Bool
_ecore_xcb_dri_link(void)
{
const char *_drm_libs[] =
{
"libdrm.so.2",
"libdrm.so.1",
"libdrm.so.0",
"libdrm.so",
NULL,
};
const char *_dri_libs[] =
{
"libdri2.so.2",
"libdri2.so.1",
"libdri2.so.0",
"libdri2.so",
"libGL.so.4",
"libGL.so.3",
"libGL.so.2",
"libGL.so.1",
"libGL.so.0",
"libGL.so",
NULL,
};
int i = 0, fail = 0;
LOGFN(__FILE__, __LINE__, __FUNCTION__);
# define SYM(lib, xx) \
do { \
sym_## xx = dlsym(lib, #xx); \
if (!(sym_## xx)) { \
fprintf(stderr, "%s\n", dlerror()); \
fail = 1; \
} \
} while (0);
if (_drm_lib) return EINA_TRUE;
for (i = 0; _drm_libs[i]; i++)
{
_drm_lib = dlopen(_drm_libs[i], (RTLD_LOCAL | RTLD_LAZY));
if (_drm_lib)
{
fail = 0;
SYM(_drm_lib, drmClose);
SYM(_drm_lib, drmGetMagic);
SYM(_drm_lib, drmWaitVBlank);
SYM(_drm_lib, drmHandleEvent);
if (fail)
{
dlclose(_drm_lib);
_drm_lib = NULL;
}
else
break;
}
}
if (!_drm_lib) return EINA_FALSE;
for (i = 0; _dri_libs[i]; i++)
{
if ((_dri_lib = dlopen(_dri_libs[i], (RTLD_LOCAL | RTLD_LAZY))))
{
fail = 0;
SYM(_dri_lib, DRI2QueryExtension);
SYM(_dri_lib, DRI2QueryVersion);
SYM(_dri_lib, DRI2Connect);
SYM(_dri_lib, DRI2Authenticate);
if (fail)
{
dlclose(_dri_lib);
_dri_lib = NULL;
}
else
break;
}
}
if (!_dri_lib)
{
dlclose(_drm_lib);
_drm_lib = NULL;
return EINA_FALSE;
}
return EINA_TRUE;
}
static Eina_Bool
_ecore_xcb_dri_start(void)
{
Ecore_X_Display *disp;
int _dri2_event = 0, _dri2_error = 0;
int _dri2_major = 0, _dri2_minor = 0;
char *device = NULL, *driver = NULL;
disp = ecore_x_display_get();
if (!sym_DRI2QueryExtension(disp, &_dri2_event, &_dri2_error))
return 0;
if (!sym_DRI2QueryVersion(disp, &_dri2_major, &_dri2_minor))
return 0;
if (_dri2_major < 2) return 0;
if (!sym_DRI2Connect(disp, _vsync_root, &driver, &device))
return 0;
_drm_fd = open(device, O_RDWR);
if (_drm_fd < 0) return 0;
sym_drmGetMagic(_drm_fd, &_drm_magic);
if (!sym_DRI2Authenticate(disp, _vsync_root, _drm_magic))
{
close(_drm_fd);
_drm_fd = -1;
return EINA_FALSE;
}
memset(&_drm_evctx, 0, sizeof(_drm_evctx));
_drm_evctx.version = DRM_EVENT_CONTEXT_VERSION;
_drm_evctx.vblank_handler = _ecore_xcb_dri_vblank_handler;
_drm_evctx.page_flip_handler = NULL;
_drm_fdh = ecore_main_fd_handler_add(_drm_fd, ECORE_FD_READ,
_ecore_xcb_dri_cb, NULL, NULL, NULL);
if (!_drm_fdh)
{
close(_drm_fd);
_drm_fd = -1;
return EINA_FALSE;
}
return EINA_TRUE;
}
static void
_ecore_xcb_dri_shutdown(void)
{
if (_drm_fd >= 0)
{
close(_drm_fd);
_drm_fd = -1;
}
if (_drm_fdh)
{
ecore_main_fd_handler_del(_drm_fdh);
_drm_fdh = NULL;
}
}
static Eina_Bool
_ecore_xcb_dri_cb(void *data __UNUSED__,
Ecore_Fd_Handler *fdh __UNUSED__)
{
sym_drmHandleEvent(_drm_fd, &_drm_evctx);
return ECORE_CALLBACK_RENEW;
}
static void
_ecore_xcb_dri_tick_begin(void *data __UNUSED__)
{
_drm_event_busy = EINA_TRUE;
_ecore_xcb_dri_tick_schedule();
}
static void
_ecore_xcb_dri_tick_end(void *data __UNUSED__)
{
_drm_event_busy = EINA_FALSE;
}
static void
_ecore_xcb_dri_tick_schedule(void)
{
drmVBlank vbl;
LOGFN(__FILE__, __LINE__, __FUNCTION__);
CHECK_XCB_CONN;
vbl.request.type = (DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT);
vbl.request.sequence = 1;
vbl.request.signal = 0;
sym_drmWaitVBlank(_drm_fd, &vbl);
}
static void
_ecore_xcb_dri_vblank_handler(int fd __UNUSED__,
unsigned int frame __UNUSED__,
unsigned int sec __UNUSED__,
unsigned int usec __UNUSED__,
void *data __UNUSED__)
{
ecore_animator_custom_tick();
if (_drm_event_busy) _ecore_xcb_dri_tick_schedule();
}
#endif
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