From 3e6e8f0f08a351ef1d39defae19b8fd0bf4d2028 Mon Sep 17 00:00:00 2001 From: Carsten Haitzler Date: Sat, 14 May 2011 04:11:13 +0000 Subject: [PATCH] oooh evil start on trying to get real vsync interrupts from x!!!! :) SVN revision: 59376 --- legacy/ecore/src/lib/ecore_x/Ecore_X.h | 2 + legacy/ecore/src/lib/ecore_x/xlib/Makefile.am | 4 +- .../src/lib/ecore_x/xlib/ecore_x_vsync.c | 327 ++++++++++++++++++ 3 files changed, 332 insertions(+), 1 deletion(-) create mode 100644 legacy/ecore/src/lib/ecore_x/xlib/ecore_x_vsync.c diff --git a/legacy/ecore/src/lib/ecore_x/Ecore_X.h b/legacy/ecore/src/lib/ecore_x/Ecore_X.h index 1fe0bfd185..245bf56219 100644 --- a/legacy/ecore/src/lib/ecore_x/Ecore_X.h +++ b/legacy/ecore/src/lib/ecore_x/Ecore_X.h @@ -3239,6 +3239,8 @@ EAPI Eina_Bool ecore_x_image_to_argb_convert(void *src, int sbpp, EAPI Eina_Bool ecore_x_input_multi_select(Ecore_X_Window win); +EAPI Eina_Bool ecore_x_vsync_animator_tick_source_set(Ecore_X_Window win); + #ifdef __cplusplus } #endif // ifdef __cplusplus diff --git a/legacy/ecore/src/lib/ecore_x/xlib/Makefile.am b/legacy/ecore/src/lib/ecore_x/xlib/Makefile.am index 71990ec095..1668c34378 100644 --- a/legacy/ecore/src/lib/ecore_x/xlib/Makefile.am +++ b/legacy/ecore/src/lib/ecore_x/xlib/Makefile.am @@ -63,6 +63,7 @@ ecore_x_atoms.c \ ecore_x_region.c \ ecore_x_image.c \ ecore_x_xi2.c \ +ecore_x_vsync.c \ ecore_x_randr.h libecore_x_xlib_la_LIBADD = \ @@ -82,7 +83,8 @@ libecore_x_xlib_la_LIBADD = \ @x_libs@ \ $(top_builddir)/src/lib/ecore/libecore.la \ $(top_builddir)/src/lib/ecore_input/libecore_input.la \ -@EINA_LIBS@ +@EINA_LIBS@ \ +@dlopen_libs@ endif diff --git a/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_vsync.c b/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_vsync.c new file mode 100644 index 0000000000..53a9fb8bf2 --- /dev/null +++ b/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_vsync.c @@ -0,0 +1,327 @@ +#ifdef HAVE_CONFIG_H +# include +#endif /* ifdef HAVE_CONFIG_H */ + +#include "Ecore.h" +#include "ecore_x_private.h" +#include "Ecore_X.h" + +#include +#include +#include +#include +#include +#include +#include +#include + +#define ECORE_X_VSYNC_DRI2 1 + +#ifdef ECORE_X_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; + long tval_usec; +} drmVBlankReply; + +typedef union _drmVBlank +{ + drmVBlankReq request; + drmVBlankReply reply; +} drmVBlank; + +#define DRM_EVENT_CONTEXT_VERSION 2 + +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; + + +//// dri/drm data needed +static int dri2_event = 0; +static int dri2_error = 0; +static int dri2_major = 0; +static int dri2_minor = 0; +static char *device_name = 0; +static char *driver_name = 0; +static drm_magic_t drm_magic; + +static int drm_fd = -1; +static int drm_event_is_busy = 0; +static int drm_animators_interval = 1; +static drmEventContext drm_evctx; +static Ecore_Fd_Handler *dri_drm_fdh = NULL; + +static void *dri_lib = NULL; +static void *drm_lib = NULL; + +static Window dri_drm_vsync_root = 0; + +static void +_dri_drm_tick_schedule(void) +{ + drmVBlank vbl; + + vbl.request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT; + vbl.request.sequence = drm_animators_interval; + vbl.request.signal = 0; + sym_drmWaitVBlank(drm_fd, &vbl); +} + +static void +_dri_drm_tick_begin(void *data __UNUSED__) +{ + drm_event_is_busy = 1; + _dri_drm_tick_schedule(); +} + +static void +_dri_drm_tick_end(void *data __UNUSED__) +{ + drm_event_is_busy = 0; +} + +static void +_dri_drm_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_is_busy) _dri_drm_tick_schedule(); +} + +static Eina_Bool +_dri_drm_cb(void *data __UNUSED__, Ecore_Fd_Handler *fd_handler __UNUSED__) +{ + sym_drmHandleEvent(drm_fd, &drm_evctx); + return ECORE_CALLBACK_RENEW; +} + +// yes. most evil. we dlopen libdrm and libGL etc. to manually find smbols +// so we can be as compatible as possible given the whole mess of the +// gl/dri/drm etc. world. and handle graceful failure at runtime not +// compile time +static int +_dri_drm_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, fail; +#define SYM(lib, xx) \ + do { \ + sym_ ## xx = dlsym(lib, #xx); \ + if (!(sym_ ## xx)) { \ + fprintf(stderr, "%s\n", dlerror()); \ + fail = 1; \ + } \ + } while (0) + + if (dri_lib) return 1; + 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, drmWaitVBlank); + SYM(drm_lib, drmHandleEvent); + if (fail) + { + dlclose(drm_lib); + drm_lib = NULL; + } + else break; + } + } + if (!drm_lib) return 0; + for (i = 0; dri_libs[i]; i++) + { + dri_lib = dlopen(dri_libs[i], RTLD_LOCAL | RTLD_LAZY); + if (dri_lib) + { + 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 0; + } + return 1; +} + +static int +_dri_drm_init(void) +{ + if (!sym_DRI2QueryExtension(_ecore_x_disp, &dri2_event, &dri2_error)) + return 0; + if (!sym_DRI2QueryVersion(_ecore_x_disp, &dri2_major, &dri2_minor)) + return 0; + if (dri2_major < 2) + return 0; + if (!sym_DRI2Connect(_ecore_x_disp, dri_drm_vsync_root, &driver_name, &device_name)) + return 0; + drm_fd = open(device_name, O_RDWR); + if (drm_fd < 0) + return 0; + sym_drmGetMagic(drm_fd, &drm_magic); + if (!sym_DRI2Authenticate(_ecore_x_disp, dri_drm_vsync_root, drm_magic)) + { + close(drm_fd); + drm_fd = -1; + return 0; + } + memset(&drm_evctx, 0, sizeof(drm_evctx)); + drm_evctx.version = DRM_EVENT_CONTEXT_VERSION; + drm_evctx.vblank_handler = _dri_drm_vblank_handler; + drm_evctx.page_flip_handler = NULL; + + dri_drm_fdh = ecore_main_fd_handler_add(drm_fd, ECORE_FD_READ, + _dri_drm_cb, NULL, NULL, NULL); + if (!dri_drm_fdh) + { + close(drm_fd); + drm_fd = -1; + return 0; + } + return 1; +} + +static void +_dri_drm_shutdown(void) +{ + if (drm_fd >= 0) + { + close(drm_fd); + drm_fd = -1; + } + if (dri_drm_fdh) + { + ecore_main_fd_handler_del(dri_drm_fdh); + dri_drm_fdh = NULL; + } +} +#endif + +EAPI Eina_Bool +ecore_x_vsync_animator_tick_source_set(Ecore_X_Window win) +{ +#ifdef ECORE_X_VSYNC_DRI2 + Ecore_X_Window root; + + root = ecore_x_window_root_get(win); + if (root != dri_drm_vsync_root) + { + dri_drm_vsync_root = root; + if (dri_drm_vsync_root) + { + if (!_dri_drm_link()) + { + ecore_animator_source_set(ECORE_ANIMATOR_SOURCE_TIMER); + return EINA_FALSE; + } + _dri_drm_shutdown(); + if (!_dri_drm_init()) + { + dri_drm_vsync_root = 0; + ecore_animator_source_set(ECORE_ANIMATOR_SOURCE_TIMER); + return EINA_FALSE; + } + ecore_animator_custom_source_tick_begin_callback_set + (_dri_drm_tick_begin, NULL); + ecore_animator_custom_source_tick_end_callback_set + (_dri_drm_tick_end, NULL); + ecore_animator_source_set(ECORE_ANIMATOR_SOURCE_CUSTOM); + } + else + { + if (drm_fd >= 0) + { + _dri_drm_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 +}