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00001 /* 00002 Copyright (c) 2012, Broadcom Europe Ltd 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without 00006 modification, are permitted provided that the following conditions are met: 00007 * Redistributions of source code must retain the above copyright 00008 notice, this list of conditions and the following disclaimer. 00009 * Redistributions in binary form must reproduce the above copyright 00010 notice, this list of conditions and the following disclaimer in the 00011 documentation and/or other materials provided with the distribution. 00012 * Neither the name of the copyright holder nor the 00013 names of its contributors may be used to endorse or promote products 00014 derived from this software without specific prior written permission. 00015 00016 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 00017 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 00018 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00019 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY 00020 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 00021 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00022 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00023 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00024 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00025 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00026 */ 00027 00028 #ifndef MMAL_POOL_H 00029 #define MMAL_POOL_H 00030 00031 #ifdef __cplusplus 00032 extern "C" { 00033 #endif 00034 00038 /* @{ */ 00039 00040 #include "mmal_queue.h" 00041 00043 typedef struct MMAL_POOL_T 00044 { 00045 MMAL_QUEUE_T *queue; 00046 uint32_t headers_num; 00047 MMAL_BUFFER_HEADER_T **header; 00048 } MMAL_POOL_T; 00049 00056 typedef void *(*mmal_pool_allocator_alloc_t)(void *context, uint32_t size); 00062 typedef void (*mmal_pool_allocator_free_t)(void *context, void *mem); 00063 00082 MMAL_POOL_T *mmal_pool_create(unsigned int headers, uint32_t payload_size); 00083 00101 MMAL_POOL_T *mmal_pool_create_with_allocator(unsigned int headers, uint32_t payload_size, 00102 void *allocator_context, mmal_pool_allocator_alloc_t allocator_alloc, 00103 mmal_pool_allocator_free_t allocator_free); 00104 00115 void mmal_pool_destroy(MMAL_POOL_T *pool); 00116 00129 MMAL_STATUS_T mmal_pool_resize(MMAL_POOL_T *pool, unsigned int headers, uint32_t payload_size); 00130 00140 typedef MMAL_BOOL_T (*MMAL_POOL_BH_CB_T)(MMAL_POOL_T *pool, MMAL_BUFFER_HEADER_T *buffer, void *userdata); 00141 00149 void mmal_pool_callback_set(MMAL_POOL_T *pool, MMAL_POOL_BH_CB_T cb, void *userdata); 00150 00159 void mmal_pool_pre_release_callback_set(MMAL_POOL_T *pool, MMAL_BH_PRE_RELEASE_CB_T cb, void *userdata); 00160 00161 /* @} */ 00162 00163 #ifdef __cplusplus 00164 } 00165 #endif 00166 00167 #endif /* MMAL_POOL_H */