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#ifndef U_SURFACES_H_
#define U_SURFACES_H_
#include "pipe/p_compiler.h"
#include "pipe/p_state.h"
#include "util/u_atomic.h"
#include "cso_cache/cso_hash.h"
struct util_surfaces
{
union
{
struct cso_hash *hash;
struct pipe_surface **array;
void* pv;
} u;
};
struct pipe_surface *util_surfaces_do_get(struct util_surfaces *us, unsigned surface_struct_size, struct pipe_screen *pscreen, struct pipe_resource *pt, unsigned face, unsigned level, unsigned zslice, unsigned flags);
/* fast inline path for the very common case */
static INLINE struct pipe_surface *
util_surfaces_get(struct util_surfaces *us, unsigned surface_struct_size, struct pipe_screen *pscreen, struct pipe_resource *pt, unsigned face, unsigned level, unsigned zslice, unsigned flags)
{
if(likely((pt->target == PIPE_TEXTURE_2D || pt->target == PIPE_TEXTURE_RECT) && us->u.array))
{
struct pipe_surface *ps = us->u.array[level];
if(ps)
{
p_atomic_inc(&ps->reference.count);
return ps;
}
}
return util_surfaces_do_get(us, surface_struct_size, pscreen, pt, face, level, zslice, flags);
}
static INLINE struct pipe_surface *
util_surfaces_peek(struct util_surfaces *us, struct pipe_resource *pt, unsigned face, unsigned level, unsigned zslice)
{
if(!us->u.pv)
return 0;
if(unlikely(pt->target == PIPE_TEXTURE_3D || pt->target == PIPE_TEXTURE_CUBE))
return cso_hash_iter_data(cso_hash_find(us->u.hash, ((zslice + face) << 8) | level));
else
return us->u.array[level];
}
void util_surfaces_do_detach(struct util_surfaces *us, struct pipe_surface *ps);
static INLINE void
util_surfaces_detach(struct util_surfaces *us, struct pipe_surface *ps)
{
if(likely(ps->texture->target == PIPE_TEXTURE_2D || ps->texture->target == PIPE_TEXTURE_RECT))
{
us->u.array[ps->level] = 0;
return;
}
util_surfaces_do_detach(us, ps);
}
void util_surfaces_destroy(struct util_surfaces *us, struct pipe_resource *pt, void (*destroy_surface) (struct pipe_surface *));
#endif
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