| /************************************************************************** |
| * |
| * Copyright 2007-2008 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. |
| * |
| **************************************************************************/ |
| |
| /** |
| * \file |
| * Allocate buffers from two alternative buffer providers. |
| * |
| * \author Jose Fonseca <jrfonseca@tungstengraphics.com> |
| */ |
| |
| |
| #include "pipe/p_compiler.h" |
| #include "util/u_debug.h" |
| #include "util/u_memory.h" |
| |
| #include "pb_buffer.h" |
| #include "pb_bufmgr.h" |
| |
| |
| struct pb_alt_manager |
| { |
| struct pb_manager base; |
| |
| struct pb_manager *provider1; |
| struct pb_manager *provider2; |
| }; |
| |
| |
| static INLINE struct pb_alt_manager * |
| pb_alt_manager(struct pb_manager *mgr) |
| { |
| assert(mgr); |
| return (struct pb_alt_manager *)mgr; |
| } |
| |
| |
| static struct pb_buffer * |
| pb_alt_manager_create_buffer(struct pb_manager *_mgr, |
| pb_size size, |
| const struct pb_desc *desc) |
| { |
| struct pb_alt_manager *mgr = pb_alt_manager(_mgr); |
| struct pb_buffer *buf; |
| |
| buf = mgr->provider1->create_buffer(mgr->provider1, size, desc); |
| if(buf) |
| return buf; |
| |
| buf = mgr->provider2->create_buffer(mgr->provider2, size, desc); |
| return buf; |
| } |
| |
| |
| static void |
| pb_alt_manager_flush(struct pb_manager *_mgr) |
| { |
| struct pb_alt_manager *mgr = pb_alt_manager(_mgr); |
| |
| assert(mgr->provider1->flush); |
| if(mgr->provider1->flush) |
| mgr->provider1->flush(mgr->provider1); |
| |
| assert(mgr->provider2->flush); |
| if(mgr->provider2->flush) |
| mgr->provider2->flush(mgr->provider2); |
| } |
| |
| |
| static void |
| pb_alt_manager_destroy(struct pb_manager *mgr) |
| { |
| FREE(mgr); |
| } |
| |
| |
| struct pb_manager * |
| pb_alt_manager_create(struct pb_manager *provider1, |
| struct pb_manager *provider2) |
| { |
| struct pb_alt_manager *mgr; |
| |
| if(!provider1 || !provider2) |
| return NULL; |
| |
| mgr = CALLOC_STRUCT(pb_alt_manager); |
| if (!mgr) |
| return NULL; |
| |
| mgr->base.destroy = pb_alt_manager_destroy; |
| mgr->base.create_buffer = pb_alt_manager_create_buffer; |
| mgr->base.flush = pb_alt_manager_flush; |
| mgr->provider1 = provider1; |
| mgr->provider2 = provider2; |
| |
| return &mgr->base; |
| } |