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authorMaarten Lankhorst <[email protected]>2014-02-12 14:56:53 +0100
committerMaarten Lankhorst <[email protected]>2014-02-12 14:57:25 +0100
commitfee0686c21c631d96d6042741267a3c218c23ffc (patch)
tree96cb24b8377f9e0058d1786d24885b078bb9af63 /src/gallium/winsys/nouveau
parent572a8345bfd1d6289a91b64eef92565ef9b3ee55 (diff)
nouveau: create only 1 shared screen between vdpau and opengl
This fixes bug 73200 "vdpau-GL interop fails due to different screen objects" in the same way radeon does. Signed-off-by: Maarten Lankhorst <[email protected]> Reviewed-by: Emil Velikov <[email protected]>
Diffstat (limited to 'src/gallium/winsys/nouveau')
-rw-r--r--src/gallium/winsys/nouveau/drm/nouveau_drm_winsys.c78
1 files changed, 74 insertions, 4 deletions
diff --git a/src/gallium/winsys/nouveau/drm/nouveau_drm_winsys.c b/src/gallium/winsys/nouveau/drm/nouveau_drm_winsys.c
index e4f27f6cb24..a077c48c206 100644
--- a/src/gallium/winsys/nouveau/drm/nouveau_drm_winsys.c
+++ b/src/gallium/winsys/nouveau/drm/nouveau_drm_winsys.c
@@ -1,24 +1,83 @@
+#include <sys/stat.h>
#include "pipe/p_context.h"
#include "pipe/p_state.h"
#include "util/u_format.h"
#include "util/u_memory.h"
#include "util/u_inlines.h"
+#include "util/u_hash_table.h"
+#include "os/os_thread.h"
#include "nouveau_drm_public.h"
#include "nouveau/nouveau_winsys.h"
#include "nouveau/nouveau_screen.h"
-struct pipe_screen *
+static struct util_hash_table *fd_tab = NULL;
+
+pipe_static_mutex(nouveau_screen_mutex);
+
+boolean nouveau_drm_screen_unref(struct nouveau_screen *screen)
+{
+ int ret;
+ if (screen->refcount == -1)
+ return true;
+
+ pipe_mutex_lock(nouveau_screen_mutex);
+ ret = --screen->refcount;
+ assert(ret >= 0);
+ if (ret == 0)
+ util_hash_table_remove(fd_tab, intptr_to_pointer(screen->device->fd));
+ pipe_mutex_unlock(nouveau_screen_mutex);
+ return ret == 0;
+}
+
+static unsigned hash_fd(void *key)
+{
+ int fd = pointer_to_intptr(key);
+ struct stat stat;
+ fstat(fd, &stat);
+
+ return stat.st_dev ^ stat.st_ino ^ stat.st_rdev;
+}
+
+static int compare_fd(void *key1, void *key2)
+{
+ int fd1 = pointer_to_intptr(key1);
+ int fd2 = pointer_to_intptr(key2);
+ struct stat stat1, stat2;
+ fstat(fd1, &stat1);
+ fstat(fd2, &stat2);
+
+ return stat1.st_dev != stat2.st_dev ||
+ stat1.st_ino != stat2.st_ino ||
+ stat1.st_rdev != stat2.st_rdev;
+}
+
+PUBLIC struct pipe_screen *
nouveau_drm_screen_create(int fd)
{
struct nouveau_device *dev = NULL;
struct pipe_screen *(*init)(struct nouveau_device *);
+ struct nouveau_screen *screen;
int ret;
+ pipe_mutex_lock(nouveau_screen_mutex);
+ if (!fd_tab) {
+ fd_tab = util_hash_table_create(hash_fd, compare_fd);
+ if (!fd_tab)
+ goto err;
+ }
+
+ screen = util_hash_table_get(fd_tab, intptr_to_pointer(fd));
+ if (screen) {
+ screen->refcount++;
+ pipe_mutex_unlock(nouveau_screen_mutex);
+ return &screen->base;
+ }
+
ret = nouveau_device_wrap(fd, 0, &dev);
if (ret)
- return NULL;
+ goto err;
switch (dev->chipset & ~0xf) {
case 0x30:
@@ -42,8 +101,19 @@ nouveau_drm_screen_create(int fd)
default:
debug_printf("%s: unknown chipset nv%02x\n", __func__,
dev->chipset);
- return NULL;
+ goto err;
}
- return init(dev);
+ screen = (struct nouveau_screen*)init(dev);
+ if (!screen)
+ goto err;
+
+ util_hash_table_set(fd_tab, intptr_to_pointer(fd), screen);
+ screen->refcount = 1;
+ pipe_mutex_unlock(nouveau_screen_mutex);
+ return &screen->base;
+
+err:
+ pipe_mutex_unlock(nouveau_screen_mutex);
+ return NULL;
}