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enhance to get file_size as map_size; implement GAL_CreateSurfaceForZNode

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Vincent Wei
2020-01-14 12:10:41 +08:00
parent 7b87a03ff3
commit eee8aa9836
1 changed files with 32 additions and 2 deletions
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src/newgal/surface-shared.c
+32 -2
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@@ -49,12 +49,15 @@
#include <string.h>
#include "common.h"
#include "minigui.h"
#include "constants.h"
#if IS_COMPOSITING_SCHEMA
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <unistd.h>
#include "misc.h"
#include "newgal.h"
@@ -297,7 +300,9 @@ void GAL_FreeSharedSurfaceData (GAL_Surface *surface)
surface->hwdata = NULL;
}
else {
close (surface->shared_header->fd);
// the file descriptor may have been closed.
if (surface->shared_header->fd >= 0)
close (surface->shared_header->fd);
munmap (surface->shared_header,
surface->shared_header->buf_size
+ sizeof (GAL_SharedSurfaceHeader));
@@ -323,6 +328,16 @@ GAL_Surface * GAL_AttachSharedRGBSurface (int fd, size_t map_size,
prot |= PROT_WRITE;
}
if (map_size == 0) {
struct stat statbuf;
if (fstat (fd, &statbuf)) {
_ERR_PRINTF("NEWGAL: Failed to get map size of shared RGB surface (%d): %m\n", fd);
return NULL;
}
map_size = statbuf.st_size;
}
data_map = mmap (NULL, map_size, prot, MAP_SHARED, fd, 0);
if (data_map == MAP_FAILED) {
_ERR_PRINTF("NEWGAL: Failed to map shared RGB surface: %d\n", fd);
@@ -453,5 +468,20 @@ void GAL_DettachSharedSurfaceData (GAL_Surface *surface)
surface->shared_header = NULL;
}
GAL_Surface *GAL_CreateSurfaceForZNode (int width, int height)
{
if (IsServer()) {
return GAL_CreateRGBSurface (
GAL_HWSURFACE, width, height, __gal_screen->format->BytesPerPixel,
__gal_screen->format->Rmask, __gal_screen->format->Gmask,
__gal_screen->format->Bmask, __gal_screen->format->Amask);
}
return GAL_CreateSharedRGBSurface (__gal_screen->video,
GAL_HWSURFACE, 0600, width, height, __gal_screen->format->BytesPerPixel,
__gal_screen->format->Rmask, __gal_screen->format->Gmask,
__gal_screen->format->Bmask, __gal_screen->format->Amask);
}
#endif /* IS_COMPOSITING_SCHEMA */