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hide cso cache definition and add some initial code for size limiting

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the caches
This commit is contained in:
Zack Rusin 2008-02-26 00:15:55 -05:00
parent 6abb82da7e
commit bf1c2f3602
2 changed files with 33 additions and 17 deletions
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22
src/gallium/auxiliary/cso_cache/cso_cache.c
View file

@ -33,6 +33,17 @@
#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;
};
#if 1
static unsigned hash_key(const void *key, unsigned key_size)
{
@ -180,6 +191,7 @@ struct cso_cache *cso_cache_create(void)
{
struct cso_cache *sc = MALLOC_STRUCT(cso_cache);
sc->max_size = 4096;
sc->blend_hash = cso_hash_create();
sc->sampler_hash = cso_hash_create();
sc->depth_stencil_hash = cso_hash_create();
@ -289,3 +301,13 @@ void cso_cache_delete(struct cso_cache *sc)
FREE(sc);
}
void cso_set_maximum_cache_size(struct cso_cache *sc, int number)
{
sc->max_size = number;
}
int cso_maximum_cache_size(const struct cso_cache *sc)
{
return sc->max_size;
}

28
src/gallium/auxiliary/cso_cache/cso_cache.h
View file

@ -28,7 +28,7 @@
/**
* @file
* Constant State Object (CSO) cache.
*
*
* The basic idea is that the states are created via the
* create_state/bind_state/delete_state semantics. The driver is expected to
* perform as much of the Gallium state translation to whatever its internal
@ -36,15 +36,15 @@
* mechanism where it stores the created states. When the pipeline needs an
* actual state change, a bind call is issued. In the bind call the driver
* gets its already translated representation.
*
*
* Those semantics mean that the driver doesn't do the repeated translations
* of states on every frame, but only once, when a new state is actually
* created.
*
*
* Even on hardware that doesn't do any kind of state cache, it makes the
* driver look a lot neater, plus it avoids all the redundant state
* translations on every frame.
*
*
* Currently our constant state objects are:
* - alpha test
* - blend
@ -53,7 +53,7 @@
* - rasterizer (old setup)
* - sampler
* - vertex shader
*
*
* Things that are not constant state objects include:
* - blend_color
* - clip_state
@ -65,7 +65,7 @@
* - scissor_state
* - texture_state
* - viewport_state
*
*
* @author Zack Rusin <zack@tungstengraphics.com>
*/
@ -75,24 +75,16 @@
#include "pipe/p_context.h"
#include "pipe/p_state.h"
/* cso_hash.h is necessary for cso_hash_iter, as MSVC requires structures
/* cso_hash.h is necessary for cso_hash_iter, as MSVC requires structures
* returned by value to be fully defined */
#include "cso_hash.h"
#include "cso_hash.h"
#ifdef __cplusplus
extern "C" {
#endif
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;
};
struct cso_cache;
struct cso_blend {
struct pipe_blend_state state;
@ -164,6 +156,8 @@ void cso_for_each_state(struct cso_cache *sc, enum cso_cache_type type,
void * cso_take_state(struct cso_cache *sc, unsigned hash_key,
enum cso_cache_type type);
void cso_set_maximum_cache_size(struct cso_cache *sc, int number);
int cso_maximum_cache_size(const struct cso_cache *sc);
#ifdef __cplusplus
}