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vkd3d: Implement vkd3d_shader_cache_get.

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This commit is contained in:
Stefan Dösinger
2024-04-05 17:21:53 +03:00
committed by Alexandre Julliard
parent aad76f4ed2
commit 71f1955cd6
Notes: Alexandre Julliard 2024-04-25 00:16:00 +02:00 
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/791
5 changed files with 77 additions and 2 deletions
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51
libs/vkd3d/cache.c
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@@ -179,3 +179,54 @@ int vkd3d_shader_cache_put(struct vkd3d_shader_cache *cache,
done:
return ret;
}
int vkd3d_shader_cache_get(struct vkd3d_shader_cache *cache,
const void *key, size_t key_size, void *value, size_t *value_size)
{
struct shader_cache_entry *e;
struct shader_cache_key k;
struct rb_entry *entry;
enum vkd3d_result ret;
size_t size_in;
TRACE("%p, %p, %#zx, %p, %p.\n", cache, key, key_size, value, value_size);
size_in = *value_size;
k.hash = vkd3d_shader_cache_hash_key(key, key_size);
k.key = key;
k.key_size = key_size;
entry = rb_get(&cache->tree, &k);
if (!entry)
{
WARN("Entry not found.\n");
ret = VKD3D_ERROR_NOT_FOUND;
goto done;
}
e = RB_ENTRY_VALUE(entry, struct shader_cache_entry, entry);
*value_size = e->h.value_size;
if (!value)
{
TRACE("Found item %#"PRIx64", returning needed size %#"PRIx64".\n",
e->h.hash, e->h.value_size);
ret = VKD3D_OK;
goto done;
}
if (size_in < e->h.value_size)
{
WARN("Output buffer is too small for item %#"PRIx64", got %#zx want %#"PRIx64".\n",
e->h.hash, size_in, e->h.value_size);
ret = VKD3D_ERROR_MORE_DATA;
goto done;
}
memcpy(value, e->payload + e->h.key_size, e->h.value_size);
ret = VKD3D_OK;
TRACE("Returning cached item %#"PRIx64".\n", e->h.hash);
done:
return ret;
}