forked from KolibriOS/kolibrios
102 lines
3.4 KiB
C
102 lines
3.4 KiB
C
/**************************************************************************
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*
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* Copyright 2010 Luca Barbieri
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef U_SURFACES_H_
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#define U_SURFACES_H_
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#include "pipe/p_compiler.h"
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#include "pipe/p_state.h"
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#include "util/u_atomic.h"
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#include "cso_cache/cso_hash.h"
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struct util_surfaces
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{
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union
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{
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struct cso_hash *hash;
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struct pipe_surface **array;
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void* pv;
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} u;
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};
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/* Return value indicates if the pipe surface result is new */
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boolean
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util_surfaces_do_get(struct util_surfaces *us, unsigned surface_struct_size,
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struct pipe_context *ctx, struct pipe_resource *pt,
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unsigned level, unsigned layer,
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struct pipe_surface **res);
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/* fast inline path for the very common case */
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static INLINE boolean
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util_surfaces_get(struct util_surfaces *us, unsigned surface_struct_size,
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struct pipe_context *ctx, struct pipe_resource *pt,
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unsigned level, unsigned layer,
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struct pipe_surface **res)
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{
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if(likely((pt->target == PIPE_TEXTURE_2D || pt->target == PIPE_TEXTURE_RECT) && us->u.array))
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{
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struct pipe_surface *ps = us->u.array[level];
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if(ps && ps->context == ctx)
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{
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p_atomic_inc(&ps->reference.count);
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*res = ps;
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return FALSE;
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}
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}
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return util_surfaces_do_get(us, surface_struct_size, ctx, pt, level, layer, res);
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}
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static INLINE struct pipe_surface *
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util_surfaces_peek(struct util_surfaces *us, struct pipe_resource *pt, unsigned level, unsigned layer)
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{
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if(!us->u.pv)
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return 0;
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if(unlikely(pt->target == PIPE_TEXTURE_3D || pt->target == PIPE_TEXTURE_CUBE))
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return cso_hash_iter_data(cso_hash_find(us->u.hash, (layer << 8) | level));
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else
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return us->u.array[level];
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}
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void util_surfaces_do_detach(struct util_surfaces *us, struct pipe_surface *ps);
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static INLINE void
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util_surfaces_detach(struct util_surfaces *us, struct pipe_surface *ps)
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{
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if(likely(ps->texture->target == PIPE_TEXTURE_2D || ps->texture->target == PIPE_TEXTURE_RECT))
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{
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us->u.array[ps->u.tex.level] = 0;
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return;
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}
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util_surfaces_do_detach(us, ps);
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}
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void util_surfaces_destroy(struct util_surfaces *us, struct pipe_resource *pt, void (*destroy_surface) (struct pipe_surface *));
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#endif
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