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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_BUFFER_PRIVATE_H 00029 #define MMAL_BUFFER_PRIVATE_H 00030 00032 typedef struct MMAL_DRIVER_BUFFER_T MMAL_DRIVER_BUFFER_T; 00033 00035 #define MMAL_DRIVER_BUFFER_SIZE 32 00036 00038 typedef struct MMAL_BUFFER_HEADER_PRIVATE_T 00039 { 00042 MMAL_BH_PRE_RELEASE_CB_T pf_pre_release; 00043 void *pre_release_userdata; 00044 00047 void (*pf_release)(struct MMAL_BUFFER_HEADER_T *header); 00048 void *owner; 00051 int32_t refcount; 00054 MMAL_BUFFER_HEADER_T *reference; 00058 void (*pf_payload_free)(void *payload_context, void *payload); 00059 void *payload; 00060 void *payload_context; 00061 uint32_t payload_size; 00063 void *component_data; 00064 void *payload_handle; 00066 uint8_t driver_area[MMAL_DRIVER_BUFFER_SIZE]; 00067 00068 } MMAL_BUFFER_HEADER_PRIVATE_T; 00069 00071 unsigned int mmal_buffer_header_size(MMAL_BUFFER_HEADER_T *header); 00072 00074 MMAL_BUFFER_HEADER_T *mmal_buffer_header_initialise(void *mem, unsigned int length); 00075 00078 MMAL_DRIVER_BUFFER_T *mmal_buffer_header_driver_data(MMAL_BUFFER_HEADER_T *); 00079 00084 MMAL_BUFFER_HEADER_T *mmal_buffer_header_reference(MMAL_BUFFER_HEADER_T *header); 00085 00086 #endif /* MMAL_BUFFER_PRIVATE_H */