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Make AllocParams into POD objects

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Make allocparams into pod objects. This makes it easy to serialize,
copy, create and intersect them.
Add convenience macros for properties
Add helper function to collect object properties.
This commit is contained in:
Wim Taymans 2017-03-17 11:58:09 +01:00
parent b1f7df52e3
commit 8a6ce3b179
34 changed files with 948 additions and 1054 deletions
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59
spa/include/spa/pod.h
View file

@ -27,6 +27,8 @@ extern "C" {
#define SPA_POD_URI "http://spaplug.in/ns/pod"
#define SPA_POD_PREFIX SPA_POD_URI "#"
#include <stdarg.h>
#include <spa/defs.h>
/**
@ -57,19 +59,10 @@ typedef struct {
uint32_t type;
} SpaPOD;
#define SPA_POD_BODY_SIZE(pod) (((SpaPOD*)(pod))->size)
#define SPA_POD_TYPE(pod) (((SpaPOD*)(pod))->type)
#define SPA_POD_SIZE(pod) (sizeof(SpaPOD) + SPA_POD_BODY_SIZE(pod))
#define SPA_POD_CONTENTS_SIZE(type,pod) (SPA_POD_SIZE(pod)-sizeof(type))
#define SPA_POD_CONTENTS(type,pod) SPA_MEMBER((pod),sizeof(type),void)
#define SPA_POD_CONTENTS_CONST(type,pod) SPA_MEMBER((pod),sizeof(type),const void)
#define SPA_POD_BODY(pod) SPA_MEMBER((pod),sizeof(SpaPOD),void)
#define SPA_POD_BODY_CONST(pod) SPA_MEMBER((pod),sizeof(SpaPOD),const void)
typedef struct {
SpaPOD pod;
int32_t value;
int32_t __padding;
} SpaPODInt;
typedef SpaPODInt SpaPODBool;
@ -155,8 +148,6 @@ typedef struct {
SpaPODPropBody body;
} SpaPODProp;
#define SPA_POD_PROP_N_VALUES(prop) (((prop)->pod.size - sizeof (SpaPODPropBody)) / (prop)->body.value.size)
typedef struct {
uint32_t id;
uint32_t type;
@ -168,50 +159,6 @@ typedef struct {
SpaPODObjectBody body;
} SpaPODObject;
#define SPA_POD_ARRAY_BODY_FOREACH(body, _size, iter) \
for ((iter) = SPA_MEMBER ((body), sizeof(SpaPODArrayBody), __typeof__(*(iter))); \
(iter) < SPA_MEMBER ((body), (_size), __typeof__(*(iter))); \
(iter) = SPA_MEMBER ((iter), (body)->child.size, __typeof__(*(iter))))
#define SPA_POD_FOREACH(pod, size, iter) \
for ((iter) = (pod); \
(iter) < SPA_MEMBER ((pod), (size), SpaPOD); \
(iter) = SPA_MEMBER ((iter), SPA_ROUND_UP_N (SPA_POD_SIZE (iter), 8), SpaPOD))
#define SPA_POD_CONTENTS_FOREACH(pod, offset, iter) \
SPA_POD_FOREACH(SPA_MEMBER ((pod), (offset), SpaPOD),SPA_POD_SIZE (pod),iter)
#define SPA_POD_OBJECT_BODY_FOREACH(body, size, iter) \
for ((iter) = SPA_MEMBER ((body), sizeof (SpaPODObjectBody), SpaPOD); \
(iter) < SPA_MEMBER ((body), (size), SpaPOD); \
(iter) = SPA_MEMBER ((iter), SPA_ROUND_UP_N (SPA_POD_SIZE (iter), 8), SpaPOD))
#define SPA_POD_OBJECT_FOREACH(obj, iter) \
SPA_POD_OBJECT_BODY_FOREACH(&obj->body, SPA_POD_BODY_SIZE(obj), iter)
#define SPA_POD_PROP_ALTERNATIVE_FOREACH(body, _size, iter) \
for ((iter) = SPA_MEMBER ((body), (body)->value.size + sizeof (SpaPODPropBody), __typeof__(*iter)); \
(iter) <= SPA_MEMBER ((body), (_size)-(body)->value.size, __typeof__(*iter)); \
(iter) = SPA_MEMBER ((iter), (body)->value.size, __typeof__(*iter)))
static inline SpaPODProp *
spa_pod_contents_find_prop (const SpaPOD *pod, uint32_t offset, uint32_t key)
{
SpaPOD *res;
SPA_POD_CONTENTS_FOREACH (pod, offset, res) {
if (res->type == SPA_POD_TYPE_PROP && ((SpaPODProp*)res)->body.key == key)
return (SpaPODProp *)res;
}
return NULL;
}
static inline SpaPODProp *
spa_pod_object_find_prop (const SpaPODObject *obj, uint32_t key)
{
return spa_pod_contents_find_prop (&obj->pod, sizeof (SpaPODObject), key);
}
#ifdef __cplusplus
} /* extern "C" */
#endif