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Diffstat (limited to 'src/gallium/auxiliary/cso_cache/cso_cache.c')
-rw-r--r--src/gallium/auxiliary/cso_cache/cso_cache.c406
1 files changed, 406 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/cso_cache/cso_cache.c b/src/gallium/auxiliary/cso_cache/cso_cache.c
new file mode 100644
index 0000000000..6b1754ea00
--- /dev/null
+++ b/src/gallium/auxiliary/cso_cache/cso_cache.c
@@ -0,0 +1,406 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/* Authors: Zack Rusin <zack@tungstengraphics.com>
+ */
+
+#include "pipe/p_debug.h"
+
+#include "util/u_memory.h"
+
+#include "cso_cache.h"
+#include "cso_hash.h"
+
+
+struct cso_cache {
+ struct cso_hash *blend_hash;
+ struct cso_hash *depth_stencil_hash;
+ struct cso_hash *fs_hash;
+ struct cso_hash *vs_hash;
+ struct cso_hash *rasterizer_hash;
+ struct cso_hash *sampler_hash;
+ int max_size;
+
+ cso_sanitize_callback sanitize_cb;
+ void *sanitize_data;
+};
+
+#if 1
+static unsigned hash_key(const void *key, unsigned key_size)
+{
+ unsigned *ikey = (unsigned *)key;
+ unsigned hash = 0, i;
+
+ assert(key_size % 4 == 0);
+
+ /* I'm sure this can be improved on:
+ */
+ for (i = 0; i < key_size/4; i++)
+ hash ^= ikey[i];
+
+ return hash;
+}
+#else
+static unsigned hash_key(const unsigned char *p, int n)
+{
+ unsigned h = 0;
+ unsigned g;
+
+ while (n--) {
+ h = (h << 4) + *p++;
+ if ((g = (h & 0xf0000000)) != 0)
+ h ^= g >> 23;
+ h &= ~g;
+ }
+ return h;
+}
+#endif
+
+unsigned cso_construct_key(void *item, int item_size)
+{
+ return hash_key((item), item_size);
+}
+
+static struct cso_hash *_cso_hash_for_type(struct cso_cache *sc, enum cso_cache_type type)
+{
+ struct cso_hash *hash = 0;
+
+ switch(type) {
+ case CSO_BLEND:
+ hash = sc->blend_hash;
+ break;
+ case CSO_SAMPLER:
+ hash = sc->sampler_hash;
+ break;
+ case CSO_DEPTH_STENCIL_ALPHA:
+ hash = sc->depth_stencil_hash;
+ break;
+ case CSO_RASTERIZER:
+ hash = sc->rasterizer_hash;
+ break;
+ case CSO_FRAGMENT_SHADER:
+ hash = sc->fs_hash;
+ break;
+ case CSO_VERTEX_SHADER:
+ hash = sc->vs_hash;
+ break;
+ }
+
+ return hash;
+}
+
+static int _cso_size_for_type(enum cso_cache_type type)
+{
+ switch(type) {
+ case CSO_BLEND:
+ return sizeof(struct pipe_blend_state);
+ case CSO_SAMPLER:
+ return sizeof(struct pipe_sampler_state);
+ case CSO_DEPTH_STENCIL_ALPHA:
+ return sizeof(struct pipe_depth_stencil_alpha_state);
+ case CSO_RASTERIZER:
+ return sizeof(struct pipe_rasterizer_state);
+ case CSO_FRAGMENT_SHADER:
+ return sizeof(struct pipe_shader_state);
+ case CSO_VERTEX_SHADER:
+ return sizeof(struct pipe_shader_state);
+ }
+ return 0;
+}
+
+
+static void delete_blend_state(void *state, void *data)
+{
+ struct cso_blend *cso = (struct cso_blend *)state;
+ if (cso->delete_state)
+ cso->delete_state(cso->context, cso->data);
+ FREE(state);
+}
+
+static void delete_depth_stencil_state(void *state, void *data)
+{
+ struct cso_depth_stencil_alpha *cso = (struct cso_depth_stencil_alpha *)state;
+ if (cso->delete_state)
+ cso->delete_state(cso->context, cso->data);
+ FREE(state);
+}
+
+static void delete_sampler_state(void *state, void *data)
+{
+ struct cso_sampler *cso = (struct cso_sampler *)state;
+ if (cso->delete_state)
+ cso->delete_state(cso->context, cso->data);
+ FREE(state);
+}
+
+static void delete_rasterizer_state(void *state, void *data)
+{
+ struct cso_rasterizer *cso = (struct cso_rasterizer *)state;
+ if (cso->delete_state)
+ cso->delete_state(cso->context, cso->data);
+ FREE(state);
+}
+
+static void delete_fs_state(void *state, void *data)
+{
+ struct cso_fragment_shader *cso = (struct cso_fragment_shader *)state;
+ if (cso->delete_state)
+ cso->delete_state(cso->context, cso->data);
+ FREE(state);
+}
+
+static void delete_vs_state(void *state, void *data)
+{
+ struct cso_vertex_shader *cso = (struct cso_vertex_shader *)state;
+ if (cso->delete_state)
+ cso->delete_state(cso->context, cso->data);
+ FREE(state);
+}
+
+
+static INLINE void delete_cso(void *state, enum cso_cache_type type)
+{
+ switch (type) {
+ case CSO_BLEND:
+ delete_blend_state(state, 0);
+ break;
+ case CSO_SAMPLER:
+ delete_sampler_state(state, 0);
+ break;
+ case CSO_DEPTH_STENCIL_ALPHA:
+ delete_depth_stencil_state(state, 0);
+ break;
+ case CSO_RASTERIZER:
+ delete_rasterizer_state(state, 0);
+ break;
+ case CSO_FRAGMENT_SHADER:
+ delete_fs_state(state, 0);
+ break;
+ case CSO_VERTEX_SHADER:
+ delete_vs_state(state, 0);
+ break;
+ default:
+ assert(0);
+ FREE(state);
+ }
+}
+
+
+static INLINE void sanitize_hash(struct cso_cache *sc,
+ struct cso_hash *hash,
+ enum cso_cache_type type,
+ int max_size)
+{
+ if (sc->sanitize_cb)
+ sc->sanitize_cb(hash, type, max_size, sc->sanitize_data);
+}
+
+
+static INLINE void sanitize_cb(struct cso_hash *hash, enum cso_cache_type type,
+ int max_size, void *user_data)
+{
+ /* if we're approach the maximum size, remove fourth of the entries
+ * otherwise every subsequent call will go through the same */
+ int hash_size = cso_hash_size(hash);
+ int max_entries = (max_size > hash_size) ? max_size : hash_size;
+ int to_remove = (max_size < max_entries) * max_entries/4;
+ if (hash_size > max_size)
+ to_remove += hash_size - max_size;
+ while (to_remove) {
+ /*remove elements until we're good */
+ /*fixme: currently we pick the nodes to remove at random*/
+ struct cso_hash_iter iter = cso_hash_first_node(hash);
+ void *cso = cso_hash_take(hash, cso_hash_iter_key(iter));
+ delete_cso(cso, type);
+ --to_remove;
+ }
+}
+
+struct cso_hash_iter
+cso_insert_state(struct cso_cache *sc,
+ unsigned hash_key, enum cso_cache_type type,
+ void *state)
+{
+ struct cso_hash *hash = _cso_hash_for_type(sc, type);
+ sanitize_hash(sc, hash, type, sc->max_size);
+
+ return cso_hash_insert(hash, hash_key, state);
+}
+
+struct cso_hash_iter
+cso_find_state(struct cso_cache *sc,
+ unsigned hash_key, enum cso_cache_type type)
+{
+ struct cso_hash *hash = _cso_hash_for_type(sc, type);
+
+ return cso_hash_find(hash, hash_key);
+}
+
+
+void *cso_hash_find_data_from_template( struct cso_hash *hash,
+ unsigned hash_key,
+ void *templ,
+ int size )
+{
+ struct cso_hash_iter iter = cso_hash_find(hash, hash_key);
+ while (!cso_hash_iter_is_null(iter)) {
+ void *iter_data = cso_hash_iter_data(iter);
+ if (!memcmp(iter_data, templ, size)) {
+ /* We found a match
+ */
+ return iter_data;
+ }
+ iter = cso_hash_iter_next(iter);
+ }
+ return NULL;
+}
+
+
+struct cso_hash_iter cso_find_state_template(struct cso_cache *sc,
+ unsigned hash_key, enum cso_cache_type type,
+ void *templ)
+{
+ struct cso_hash_iter iter = cso_find_state(sc, hash_key, type);
+ int size = _cso_size_for_type(type);
+ while (!cso_hash_iter_is_null(iter)) {
+ void *iter_data = cso_hash_iter_data(iter);
+ if (!memcmp(iter_data, templ, size))
+ return iter;
+ iter = cso_hash_iter_next(iter);
+ }
+ return iter;
+}
+
+void * cso_take_state(struct cso_cache *sc,
+ unsigned hash_key, enum cso_cache_type type)
+{
+ struct cso_hash *hash = _cso_hash_for_type(sc, type);
+ return cso_hash_take(hash, hash_key);
+}
+
+struct cso_cache *cso_cache_create(void)
+{
+ struct cso_cache *sc = MALLOC_STRUCT(cso_cache);
+ if (sc == NULL)
+ return NULL;
+
+ sc->max_size = 4096;
+ sc->blend_hash = cso_hash_create();
+ sc->sampler_hash = cso_hash_create();
+ sc->depth_stencil_hash = cso_hash_create();
+ sc->rasterizer_hash = cso_hash_create();
+ sc->fs_hash = cso_hash_create();
+ sc->vs_hash = cso_hash_create();
+ sc->sanitize_cb = sanitize_cb;
+ sc->sanitize_data = 0;
+
+ return sc;
+}
+
+void cso_for_each_state(struct cso_cache *sc, enum cso_cache_type type,
+ cso_state_callback func, void *user_data)
+{
+ struct cso_hash *hash = 0;
+ struct cso_hash_iter iter;
+
+ switch (type) {
+ case CSO_BLEND:
+ hash = sc->blend_hash;
+ break;
+ case CSO_SAMPLER:
+ hash = sc->sampler_hash;
+ break;
+ case CSO_DEPTH_STENCIL_ALPHA:
+ hash = sc->depth_stencil_hash;
+ break;
+ case CSO_RASTERIZER:
+ hash = sc->rasterizer_hash;
+ break;
+ case CSO_FRAGMENT_SHADER:
+ hash = sc->fs_hash;
+ break;
+ case CSO_VERTEX_SHADER:
+ hash = sc->vs_hash;
+ break;
+ }
+
+ iter = cso_hash_first_node(hash);
+ while (!cso_hash_iter_is_null(iter)) {
+ void *state = cso_hash_iter_data(iter);
+ iter = cso_hash_iter_next(iter);
+ if (state) {
+ func(state, user_data);
+ }
+ }
+}
+
+void cso_cache_delete(struct cso_cache *sc)
+{
+ assert(sc);
+ /* delete driver data */
+ cso_for_each_state(sc, CSO_BLEND, delete_blend_state, 0);
+ cso_for_each_state(sc, CSO_DEPTH_STENCIL_ALPHA, delete_depth_stencil_state, 0);
+ cso_for_each_state(sc, CSO_FRAGMENT_SHADER, delete_fs_state, 0);
+ cso_for_each_state(sc, CSO_VERTEX_SHADER, delete_vs_state, 0);
+ cso_for_each_state(sc, CSO_RASTERIZER, delete_rasterizer_state, 0);
+ cso_for_each_state(sc, CSO_SAMPLER, delete_sampler_state, 0);
+
+ cso_hash_delete(sc->blend_hash);
+ cso_hash_delete(sc->sampler_hash);
+ cso_hash_delete(sc->depth_stencil_hash);
+ cso_hash_delete(sc->rasterizer_hash);
+ cso_hash_delete(sc->fs_hash);
+ cso_hash_delete(sc->vs_hash);
+ FREE(sc);
+}
+
+void cso_set_maximum_cache_size(struct cso_cache *sc, int number)
+{
+ sc->max_size = number;
+
+ sanitize_hash(sc, sc->blend_hash, CSO_BLEND, sc->max_size);
+ sanitize_hash(sc, sc->depth_stencil_hash, CSO_DEPTH_STENCIL_ALPHA,
+ sc->max_size);
+ sanitize_hash(sc, sc->fs_hash, CSO_FRAGMENT_SHADER, sc->max_size);
+ sanitize_hash(sc, sc->vs_hash, CSO_VERTEX_SHADER, sc->max_size);
+ sanitize_hash(sc, sc->rasterizer_hash, CSO_RASTERIZER, sc->max_size);
+ sanitize_hash(sc, sc->sampler_hash, CSO_SAMPLER, sc->max_size);
+}
+
+int cso_maximum_cache_size(const struct cso_cache *sc)
+{
+ return sc->max_size;
+}
+
+void cso_cache_set_sanitize_callback(struct cso_cache *sc,
+ cso_sanitize_callback cb,
+ void *user_data)
+{
+ sc->sanitize_cb = cb;
+ sc->sanitize_data = user_data;
+}
+
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