| /************************************************************************** |
| * |
| * Copyright 2010 Luca Barbieri |
| * |
| * 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, sublicense, 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 NONINFRINGEMENT. |
| * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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. |
| * |
| **************************************************************************/ |
| |
| #include "u_surfaces.h" |
| #include "util/u_hash_table.h" |
| #include "util/u_inlines.h" |
| #include "util/u_memory.h" |
| |
| boolean |
| util_surfaces_do_get(struct util_surfaces *us, unsigned surface_struct_size, |
| struct pipe_context *ctx, struct pipe_resource *pt, |
| unsigned level, unsigned layer, unsigned flags, |
| struct pipe_surface **res) |
| { |
| struct pipe_surface *ps; |
| |
| if(pt->target == PIPE_TEXTURE_3D || pt->target == PIPE_TEXTURE_CUBE) |
| { /* or 2D array */ |
| if(!us->u.hash) |
| us->u.hash = cso_hash_create(); |
| |
| ps = cso_hash_iter_data(cso_hash_find(us->u.hash, (layer << 8) | level)); |
| } |
| else |
| { |
| if(!us->u.array) |
| us->u.array = CALLOC(pt->last_level + 1, sizeof(struct pipe_surface *)); |
| ps = us->u.array[level]; |
| } |
| |
| if(ps && ps->context == ctx) |
| { |
| p_atomic_inc(&ps->reference.count); |
| *res = ps; |
| return FALSE; |
| } |
| |
| ps = (struct pipe_surface *)CALLOC(1, surface_struct_size); |
| if(!ps) |
| { |
| *res = NULL; |
| return FALSE; |
| } |
| |
| pipe_surface_init(ctx, ps, pt, level, layer, flags); |
| |
| if(pt->target == PIPE_TEXTURE_3D || pt->target == PIPE_TEXTURE_CUBE) |
| cso_hash_insert(us->u.hash, (layer << 8) | level, ps); |
| else |
| us->u.array[level] = ps; |
| |
| *res = ps; |
| return TRUE; |
| } |
| |
| void |
| util_surfaces_do_detach(struct util_surfaces *us, struct pipe_surface *ps) |
| { |
| struct pipe_resource *pt = ps->texture; |
| if(pt->target == PIPE_TEXTURE_3D || pt->target == PIPE_TEXTURE_CUBE) |
| { /* or 2D array */ |
| cso_hash_erase(us->u.hash, cso_hash_find(us->u.hash, (ps->u.tex.first_layer << 8) | ps->u.tex.level)); |
| } |
| else |
| us->u.array[ps->u.tex.level] = 0; |
| } |
| |
| void |
| util_surfaces_destroy(struct util_surfaces *us, struct pipe_resource *pt, void (*destroy_surface) (struct pipe_surface *)) |
| { |
| if(pt->target == PIPE_TEXTURE_3D || pt->target == PIPE_TEXTURE_CUBE) |
| { /* or 2D array */ |
| if(us->u.hash) |
| { |
| struct cso_hash_iter iter; |
| iter = cso_hash_first_node(us->u.hash); |
| while (!cso_hash_iter_is_null(iter)) { |
| destroy_surface(cso_hash_iter_data(iter)); |
| iter = cso_hash_iter_next(iter); |
| } |
| |
| cso_hash_delete(us->u.hash); |
| us->u.hash = NULL; |
| } |
| } |
| else |
| { |
| if(us->u.array) |
| { |
| unsigned i; |
| for(i = 0; i <= pt->last_level; ++i) |
| { |
| struct pipe_surface *ps = us->u.array[i]; |
| if(ps) |
| destroy_surface(ps); |
| } |
| FREE(us->u.array); |
| us->u.array = NULL; |
| } |
| } |
| } |