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win32u: Keep a reference on the adapters gpu.

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Rémi Bernon 2024-02-27 14:27:33 +01:00 • committed by Alexandre Julliard
parent e5afb283cf
commit c179b269ab
1 changed files with 22 additions and 2 deletions
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24
dlls/win32u/sysparams.c
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@ -98,6 +98,7 @@ struct display_device
struct gpu
{
LONG refcount;
struct list entry;
LUID luid;
unsigned int adapter_count;
@ -110,6 +111,7 @@ struct adapter
struct display_device dev;
LUID gpu_luid;
unsigned int id;
struct gpu *gpu;
const WCHAR *config_key;
unsigned int mode_count;
DEVMODEW *modes;
@ -336,6 +338,18 @@ static void release_display_device_init_mutex( HANDLE mutex )
NtClose( mutex );
}
static struct gpu *gpu_acquire( struct gpu *gpu )
{
InterlockedIncrement( &gpu->refcount );
return gpu;
}
static void gpu_release( struct gpu *gpu )
{
if (!InterlockedDecrement( &gpu->refcount ))
free( gpu );
}
static struct adapter *adapter_acquire( struct adapter *adapter )
{
InterlockedIncrement( &adapter->refcount );
@ -346,6 +360,7 @@ static void adapter_release( struct adapter *adapter )
{
if (!InterlockedDecrement( &adapter->refcount ))
{
gpu_release( adapter->gpu );
free( adapter->modes );
free( adapter );
}
@ -1477,7 +1492,7 @@ static void clear_display_devices(void)
{
gpu = LIST_ENTRY( list_head( &gpus ), struct gpu, entry );
list_remove( &gpu->entry );
free( gpu );
gpu_release( gpu );
}
}
@ -1521,7 +1536,8 @@ static BOOL update_display_cache_from_registry(void)
if (!read_display_adapter_settings( adapter_id, adapter ))
{
adapter_release( adapter );
free( adapter->modes );
free( adapter );
break;
}
@ -1588,6 +1604,7 @@ static BOOL update_display_cache_from_registry(void)
NtClose( gpu_key );
continue;
}
gpu->refcount = 1;
if ((prop_key = reg_open_ascii_key( gpu_key, devpropkey_gpu_luidA )))
{
@ -1599,7 +1616,10 @@ static BOOL update_display_cache_from_registry(void)
LIST_FOR_EACH_ENTRY(adapter, &adapters, struct adapter, entry)
{
if (!memcmp( &adapter->gpu_luid, &gpu->luid, sizeof(LUID) ))
{
adapter->gpu = gpu_acquire( gpu );
gpu->adapter_count++;
}
}
list_add_tail( &gpus, &gpu->entry );