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use system v semphore set instead of poxis semaphore

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This commit is contained in:
Vincent Wei
2020-02-01 21:44:34 +08:00
parent ccfe97326b
commit af9e425dd0
1 changed files with 26 additions and 21 deletions
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47
src/newgal/surface-shared.c
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@@ -67,7 +67,7 @@
#include "blit.h"
/*
* Create a shared empty RGB surface of the appropriate depth
* Create a shared empty RGB surface of the appropriate depth and pixel format
*/
GAL_Surface * GAL_CreateSharedRGBSurface (GAL_VideoDevice *video,
Uint32 flags, Uint32 rw_modes, int width, int height, int depth,
@@ -75,7 +75,6 @@ GAL_Surface * GAL_CreateSharedRGBSurface (GAL_VideoDevice *video,
{
GAL_Surface *screen;
GAL_Surface *surface;
BOOL sem_inited = FALSE;
if (video == NULL) {
video = __mg_current_video;
@@ -212,7 +211,20 @@ GAL_Surface * GAL_CreateSharedRGBSurface (GAL_VideoDevice *video,
hdr->dirty_age = 0;
hdr->nr_dirty_rcs = 0;
#if 1
/* allocate semaphore from semaphore for shared surface */
if (IsServer() && __gal_fake_screen == NULL) {
// use 0 for wallpaper pattern,
// because the semaphore set manager is not ready.
hdr->sem_num = 0;
}
else {
hdr->sem_num = __mg_alloc_sem_for_shared_surf();
if (hdr->sem_num < 0) {
goto error;
}
}
#if 0
/* Use a unnamed POSIX semaphore shared between processes */
if (sem_init (&hdr->sem_lock, 1, 1) < 0) {
if (errno == ENOSYS) {
@@ -220,12 +232,7 @@ GAL_Surface * GAL_CreateSharedRGBSurface (GAL_VideoDevice *video,
}
goto error;
}
sem_inited = TRUE;
#else
hdr->semid = -1;
hdr->sem_num = __mg_alloc_mutual_sem (&hdr->semid);
if (hdr->sem_num < 0)
goto error;
BOOL sem_inited = TRUE;
#endif
surface->pixels = surface->shared_header->buf;
@@ -250,17 +257,16 @@ GAL_Surface * GAL_CreateSharedRGBSurface (GAL_VideoDevice *video,
error:
if (surface) {
if (surface->shared_header) {
#if 1
#if 0
if (sem_inited) {
sem_destroy (&surface->shared_header->sem_lock);
}
#else
if (surface->shared_header->semid >= 0) {
assert (surface->shared_header->sem_num >= 0);
__mg_free_mutual_sem (surface->shared_header->sem_num);
}
#endif
if (surface->shared_header->sem_num >= 0) {
__mg_free_sem_for_shared_surf (surface->shared_header->sem_num);
}
if (surface->shared_header->byhw) {
assert(video->FreeSharedHWSurface);
video->FreeSharedHWSurface (video, surface);
@@ -293,15 +299,14 @@ void GAL_FreeSharedSurfaceData (GAL_Surface *surface)
assert (surface->shared_header);
#if 1
#if 0
sem_destroy (&surface->shared_header->sem_lock);
#else
if (surface->shared_header->semid >= 0) {
assert (surface->shared_header->sem_num >= 0);
__mg_free_mutual_sem (surface->shared_header->sem_num);
}
#endif
if (surface->shared_header->sem_num >= 0) {
__mg_free_sem_for_shared_surf (surface->shared_header->sem_num);
}
if (surface->shared_header->byhw) {
assert (video->FreeSharedHWSurface);
video->FreeSharedHWSurface (video, surface);