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More work on memory

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Add explicit DMABUF memory because we can't use it like an fd in v4l2.
mmap random fd memory and use userptr in v4l2 to use it.
Allocate buffer data memory in memfd when no node can allocate.
Improve debug some more
This commit is contained in:
Wim Taymans 2016-10-04 15:56:33 +02:00
parent d828073bb8
commit b8f693ceea
14 changed files with 425 additions and 329 deletions
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99
spa/lib/buffer.c
View file

@ -33,104 +33,15 @@ static const size_t header_sizes[] = {
sizeof (SpaMetaRingbuffer),
};
SpaResult
spa_alloc_params_get_header_size (SpaAllocParam **params,
unsigned int n_params,
unsigned int n_datas,
size_t *size)
size_t
spa_meta_type_get_size (SpaMetaType type)
{
unsigned int i, n_metas = 0;
if (type <= 0 || type >= SPA_N_ELEMENTS (header_sizes))
return 0;
*size = sizeof (SpaBuffer);
for (i = 0; i < n_params; i++) {
SpaAllocParam *p = params[i];
switch (p->type) {
case SPA_ALLOC_PARAM_TYPE_META_ENABLE:
{
SpaAllocParamMetaEnable *b = (SpaAllocParamMetaEnable *) p;
if (b->type > 0 && b->type < SPA_N_ELEMENTS (header_sizes)) {
n_metas++;
*size += header_sizes[b->type];
}
break;
}
default:
break;
}
}
*size += n_metas * sizeof (SpaMeta);
*size += n_datas * sizeof (SpaData);
return SPA_RESULT_OK;
return header_sizes[type];
}
SpaResult
spa_buffer_init_headers (SpaAllocParam **params,
unsigned int n_params,
unsigned int n_datas,
SpaBuffer **buffers,
unsigned int n_buffers)
{
unsigned int i;
int n_metas = 0;
for (i = 0; i < n_params; i++) {
SpaAllocParam *p = params[i];
switch (p->type) {
case SPA_ALLOC_PARAM_TYPE_META_ENABLE:
{
SpaAllocParamMetaEnable *b = (SpaAllocParamMetaEnable *) p;
if (b->type > 0 && b->type <= SPA_N_ELEMENTS (header_sizes))
n_metas++;
}
default:
break;
}
}
for (i = 0; i < n_buffers; i++) {
int mi = 0, j;
SpaBuffer *b;
void *p;
b = buffers[i];
b->id = i;
b->n_metas = n_metas;
b->metas = SPA_MEMBER (b, sizeof (SpaBuffer), SpaMeta);
b->n_datas = n_datas;
b->datas = SPA_MEMBER (b->metas, sizeof (SpaMeta) * n_metas, SpaData);
p = SPA_MEMBER (b->datas, sizeof (SpaData) * n_datas, void);
for (j = 0, mi = 0; j < n_params; j++) {
SpaAllocParam *prm = params[j];
switch (prm->type) {
case SPA_ALLOC_PARAM_TYPE_META_ENABLE:
{
SpaAllocParamMetaEnable *pme = (SpaAllocParamMetaEnable *) prm;
if (pme->type > 0 && pme->type <= SPA_N_ELEMENTS (header_sizes)) {
b->metas[mi].type = pme->type;
b->metas[mi].data = p;
b->metas[mi].size = header_sizes[pme->type];
p = SPA_MEMBER (p, header_sizes[pme->type], void);
mi++;
}
break;
}
default:
break;
}
}
}
return SPA_RESULT_OK;
}
size_t
spa_buffer_get_size (const SpaBuffer *buffer)
{