5#ifndef SPA_BUFFER_ALLOC_H
6#define SPA_BUFFER_ALLOC_H
21#define SPA_BUFFER_ALLOC_FLAG_INLINE_META (1<<0)
22#define SPA_BUFFER_ALLOC_FLAG_INLINE_CHUNK (1<<1)
23#define SPA_BUFFER_ALLOC_FLAG_INLINE_DATA (1<<2)
24#define SPA_BUFFER_ALLOC_FLAG_INLINE_ALL 0b111
25#define SPA_BUFFER_ALLOC_FLAG_NO_DATA (1<<3)
62 uint32_t n_metas,
struct spa_meta metas[],
63 uint32_t n_datas,
struct spa_data datas[],
64 uint32_t data_aligns[])
69 info->n_metas = n_metas;
71 info->n_datas = n_datas;
73 info->data_aligns = data_aligns;
126 info->skel_size += n_datas *
sizeof(
struct spa_data);
128 for (i = 0, size = 0; i < n_metas; i++)
130 info->meta_size = size;
133 target = &info->skel_size;
135 target = &info->mem_size;
136 *target += info->meta_size;
138 info->chunk_size = n_datas *
sizeof(
struct spa_chunk);
140 target = &info->skel_size;
142 target = &info->mem_size;
143 *target += info->chunk_size;
145 for (i = 0,
size = 0; i < n_datas; i++) {
146 int64_t align = data_aligns[i];
147 info->max_align =
SPA_MAX(info->max_align, data_aligns[i]);
151 info->data_size =
size;
155 target = &info->skel_size;
157 target = &info->mem_size;
160 *target += info->data_size;
184 void *skel_mem,
void *data_mem)
189 void **dp, *skel, *data;
205 for (i = 0; i < info->n_metas; i++) {
227 for (i = 0; i < info->n_datas; i++) {
262 uint32_t n_buffers,
struct spa_buffer *buffers[],
263 void *skel_mem,
void *data_mem)
266 for (i = 0; i < n_buffers; i++) {
268 skel_mem =
SPA_PTROFF(skel_mem, info->skel_size,
void);
269 data_mem =
SPA_PTROFF(data_mem, info->mem_size,
void);
299 uint32_t data_aligns[])
304 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
309 buffers = (
struct spa_buffer **)calloc(1, info.max_align +
310 n_buffers * (
sizeof(
struct spa_buffer *) + info.skel_size));
static struct spa_buffer ** spa_buffer_alloc_array(uint32_t n_buffers, uint32_t flags, uint32_t n_metas, struct spa_meta metas[], uint32_t n_datas, struct spa_data datas[], uint32_t data_aligns[])
Allocate an array of buffers.
Definition alloc.h:306
#define SPA_BUFFER_ALLOC_FLAG_INLINE_ALL
Definition alloc.h:33
static struct spa_buffer * spa_buffer_alloc_layout(struct spa_buffer_alloc_info *info, void *skel_mem, void *data_mem)
Fill skeleton and data according to the allocation info.
Definition alloc.h:193
#define SPA_BUFFER_ALLOC_FLAG_INLINE_META
add metadata data in the skeleton
Definition alloc.h:27
static int spa_buffer_alloc_fill_info(struct spa_buffer_alloc_info *info, uint32_t n_metas, struct spa_meta metas[], uint32_t n_datas, struct spa_data datas[], uint32_t data_aligns[])
Fill buffer allocation information.
Definition alloc.h:71
static int spa_buffer_alloc_layout_array(struct spa_buffer_alloc_info *info, uint32_t n_buffers, struct spa_buffer *buffers[], void *skel_mem, void *data_mem)
Layout an array of buffers.
Definition alloc.h:271
#define SPA_BUFFER_ALLOC_FLAG_INLINE_CHUNK
add chunk data in the skeleton
Definition alloc.h:29
#define SPA_BUFFER_ALLOC_FLAG_NO_DATA
don't set data pointers
Definition alloc.h:35
#define SPA_BUFFER_ALLOC_FLAG_INLINE_DATA
add buffer data to the skeleton
Definition alloc.h:31
#define SPA_ROUND_UP_N(num, align)
Definition defs.h:342
#define SPA_PTR_ALIGN(p, align, type)
Definition defs.h:357
#define SPA_FLAG_IS_SET(field, flag)
Definition defs.h:90
#define SPA_PTROFF(ptr_, offset_, type_)
Return the address (buffer + offset) as pointer of type.
Definition defs.h:222
#define SPA_MAX(a, b)
Definition defs.h:171
information about the buffer layout
Definition alloc.h:25
size_t mem_size
size of the total memory if not inlined
Definition alloc.h:47
size_t data_size
size of the data if not inlined
Definition alloc.h:46
uint32_t n_metas
Definition alloc.h:38
uint32_t max_align
max of all alignments
Definition alloc.h:37
size_t meta_size
size of the meta if not inlined
Definition alloc.h:44
size_t chunk_size
size of the chunk if not inlined
Definition alloc.h:45
size_t skel_size
size of the struct spa_buffer and inlined meta/chunk/data
Definition alloc.h:43
struct spa_data * datas
Definition alloc.h:41
uint32_t * data_aligns
Definition alloc.h:42
uint32_t n_datas
Definition alloc.h:39
struct spa_meta * metas
Definition alloc.h:40
uint32_t flags
Definition alloc.h:36
A Buffer.
Definition buffer.h:100
uint32_t n_metas
number of metadata
Definition buffer.h:101
struct spa_meta * metas
array of metadata
Definition buffer.h:103
struct spa_data * datas
array of data members
Definition buffer.h:104
uint32_t n_datas
number of data members
Definition buffer.h:102
Chunk of memory, can change for each buffer.
Definition buffer.h:49
uint32_t size
size of valid data.
Definition buffer.h:53
Data for a buffer this stays constant for a buffer.
Definition buffer.h:68
struct spa_chunk * chunk
valid chunk of memory
Definition buffer.h:96
void * data
optional data pointer
Definition buffer.h:95
uint32_t maxsize
max size of data
Definition buffer.h:94