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Make buffer structure sharable

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Use stucture offsets instead of pointers so that we can share the buffer
structure between client and server.
We can then pass an fd wrapping the memory of the buffer to the client.
Add beginnings of a memory pool
This commit is contained in:
Wim Taymans 2016-08-03 15:59:17 +02:00
parent 3ace7e9648
commit 98993c680b
23 changed files with 456 additions and 583 deletions
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68
spa/lib/debug.c
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@ -79,6 +79,72 @@ spa_debug_port_info (const SpaPortInfo *info)
return SPA_RESULT_OK;
}
SpaResult
spa_debug_buffer (const SpaBuffer *buffer)
{
int i;
if (buffer == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
fprintf (stderr, "SpaBuffer %p:\n", buffer);
fprintf (stderr, " id: \t%08x\n", buffer->id);
fprintf (stderr, " size: \t%zd\n", buffer->size);
fprintf (stderr, " n_metas: \t%u (offset %zd)\n", buffer->n_metas, buffer->metas);
for (i = 0; i < buffer->n_metas; i++) {
SpaMeta *m = &SPA_BUFFER_METAS (buffer)[i];
fprintf (stderr, " meta %d: type %d, offset %zd, size %zd:\n", i, m->type, m->offset, m->size);
switch (m->type) {
case SPA_META_TYPE_HEADER:
{
SpaMetaHeader *h = SPA_MEMBER (buffer, m->offset, SpaMetaHeader);
fprintf (stderr, " SpaMetaHeader:\n");
fprintf (stderr, " flags: %08x\n", h->flags);
fprintf (stderr, " seq: %u\n", h->seq);
fprintf (stderr, " pts: %"PRIi64"\n", h->pts);
fprintf (stderr, " dts_offset: %"PRIi64"\n", h->dts_offset);
break;
}
case SPA_META_TYPE_POINTER:
fprintf (stderr, " SpaMetaPointer:\n");
spa_debug_dump_mem (SPA_MEMBER (buffer, m->offset, void), m->size);
break;
case SPA_META_TYPE_VIDEO_CROP:
fprintf (stderr, " SpaMetaVideoCrop:\n");
spa_debug_dump_mem (SPA_MEMBER (buffer, m->offset, void), m->size);
break;
default:
spa_debug_dump_mem (SPA_MEMBER (buffer, m->offset, void), m->size);
break;
}
}
fprintf (stderr, " n_datas: \t%u (offset %zd)\n", buffer->n_datas, buffer->datas);
for (i = 0; i < buffer->n_datas; i++) {
SpaData *d = &SPA_BUFFER_DATAS (buffer)[i];
fprintf (stderr, " data %d: type %d\n", i, d->type);
switch (d->type) {
case SPA_DATA_TYPE_MEMPTR:
fprintf (stderr, " memptr %p\n", d->ptr);
break;
case SPA_DATA_TYPE_FD:
fprintf (stderr, " fd %d\n", SPA_PTR_TO_INT (d->ptr));
break;
case SPA_DATA_TYPE_MEMID:
fprintf (stderr, " memid %d\n", SPA_PTR_TO_UINT32 (d->ptr));
break;
case SPA_DATA_TYPE_POINTER:
fprintf (stderr, " pointer %p\n", d->ptr);
break;
default:
break;
}
fprintf (stderr, " offset %zd:\n", d->offset);
fprintf (stderr, " size %zd:\n", d->size);
fprintf (stderr, " stride %zd:\n", d->stride);
}
return SPA_RESULT_OK;
}
SpaResult
spa_debug_dump_mem (void *mem, size_t size)
{
@ -90,7 +156,7 @@ spa_debug_dump_mem (void *mem, size_t size)
for (i = 0; i < size; i++) {
printf ("%02x ", t[i]);
if (i % 16 == 8 || i == size - 1)
if (i % 16 == 15 || i == size - 1)
printf ("\n");
}
return SPA_RESULT_OK;