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use update lock (semaphore) for sharedfb schema under MiniGUI-Processes

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Vincent Wei
2021-05-05 18:42:21 +08:00
parent 47e32a812e
commit 736193d355
2 changed files with 49 additions and 1 deletions
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10
src/include/sharedres.h
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@@ -59,6 +59,10 @@
#include <sys/time.h>
#include <sys/termios.h>
#ifdef _MGSCHEMA_SHAREDFB
#include <semaphore.h>
#endif
#include "constants.h"
enum {
@@ -108,6 +112,9 @@ typedef struct tagG_RES {
char video_exdriver [LEN_EXDRIVER_NAME + 1];
Uint32 video_drm_format;
Uint32 video_dbl_buff:1;
#ifdef _MGSCHEMA_SHAREDFB
sem_t video_update_lock; /* the semaphore used for sync update */
#endif
#endif
int nr_layers;
@@ -184,6 +191,9 @@ typedef G_RES* PG_RES;
#define SHAREDRES_VIDEO_EXDRIVER (((PG_RES)mgSharedRes)->video_exdriver)
#define SHAREDRES_VIDEO_DRM_FORMAT (((PG_RES)mgSharedRes)->video_drm_format)
#define SHAREDRES_VIDEO_DBL_BUFF (((PG_RES)mgSharedRes)->video_dbl_buff)
#ifdef _MGSCHEMA_SHAREDFB
#define SHAREDRES_VIDEO_UPDATE_LOCK (&((PG_RES)mgSharedRes)->video_update_lock)
#endif
#endif
#define SHAREDRES_TIMER_COUNTER (((PG_RES)mgSharedRes)->timer_counter)

40
src/newgal/drm/drmvideo.c
View File

@@ -1248,6 +1248,15 @@ static GAL_VideoDevice *DRM_CreateDevice(int devindex)
strcasecmp (tmp, "yes") == 0) {
device->hidden->dbl_buff = 1;
}
#ifdef _MGSCHEMA_SHAREDFB
if (device->hidden->dbl_buff) {
if (sem_init (SHAREDRES_VIDEO_UPDATE_LOCK, 1, 0)) {
_WRN_PRINTF ("Failed to create update lock\n");
device->hidden->dbl_buff = 0;
}
}
#endif
}
#ifdef _MGRM_PROCESSES
else {
@@ -1257,7 +1266,7 @@ static GAL_VideoDevice *DRM_CreateDevice(int devindex)
/* override double buffering */
#if IS_COMPOSITING_SCHEMA
/* force to use double buffering to compositing schema */
/* force to use double buffering for compositing schema */
if (mgIsServer) {
device->hidden->dbl_buff = 1;
#if 0 /* test code */
@@ -1650,6 +1659,14 @@ static void DRM_VideoQuit(_THIS)
this->screen->pixels = NULL;
}
#if defined (_MGRM_PROCESSES) && defined (_MGSCHEMA_SHAREDFB)
if (mgIsServer && this->hidden->dbl_buff) {
if (sem_destroy (SHAREDRES_VIDEO_UPDATE_LOCK)) {
_ERR_PRINTF ("Failed to destroy the update lock\n");
}
}
#endif
#if 0 /* test code */
#ifdef _MBSCHEMA_COMPOSITING
if (this->hidden->update_th) {
@@ -3202,6 +3219,10 @@ static void DRM_UpdateRects (_THIS, int numrects, GAL_Rect *rects)
RECT bound;
#if IS_SHAREDFB_SCHEMA_PROCS
if (this->hidden->dbl_buff) {
sem_wait (SHAREDRES_VIDEO_UPDATE_LOCK);
}
GAL_ShadowSurfaceHeader* hdr;
if (this->hidden->shadow_screen->flags & GAL_HWSURFACE) {
hdr = (GAL_ShadowSurfaceHeader*)
@@ -3233,6 +3254,12 @@ static void DRM_UpdateRects (_THIS, int numrects, GAL_Rect *rects)
bound = GetScreenRect();
if (!IntersectRect (dirty_rc, dirty_rc, &bound))
SetRectEmpty (dirty_rc);
#if IS_SHAREDFB_SCHEMA_PROCS
if (this->hidden->dbl_buff) {
sem_post (SHAREDRES_VIDEO_UPDATE_LOCK);
}
#endif
}
static BOOL DRM_SyncUpdate (_THIS)
@@ -3242,6 +3269,10 @@ static BOOL DRM_SyncUpdate (_THIS)
RECT bound;
#if IS_SHAREDFB_SCHEMA_PROCS
if (this->hidden->dbl_buff) {
sem_wait (SHAREDRES_VIDEO_UPDATE_LOCK);
}
GAL_ShadowSurfaceHeader* hdr;
if (this->hidden->shadow_screen->flags & GAL_HWSURFACE) {
hdr = (GAL_ShadowSurfaceHeader*)
@@ -3344,7 +3375,14 @@ static BOOL DRM_SyncUpdate (_THIS)
}
SetRectEmpty (dirty_rc);
ret:
#if IS_SHAREDFB_SCHEMA_PROCS
if (this->hidden->dbl_buff) {
sem_post (SHAREDRES_VIDEO_UPDATE_LOCK);
}
#endif
return retval;
}