+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2007-2008 VMware, Inc.
- * 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 VMWARE 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 <jfonseca@vmware.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;
-}