diff options
Diffstat (limited to 'src/gallium/auxiliary/cso_cache/cso_cache.c')
| -rw-r--r-- | src/gallium/auxiliary/cso_cache/cso_cache.c | 406 |
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 00000000000..6b1754ea002 --- /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 <[email protected]> + */ + +#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; +} + |