1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <X11/extensions/Xv.h>
#include "xf86xv.h"
#include "xv_attribute.h"
static const struct xv_attr_data *xv_attr_find_attribute(
const struct xv_attr_data *attrs, size_t n_attr, Atom attribute)
{
while (n_attr--) {
if (attribute == attrs->x_atom)
return attrs;
attrs++;
}
return NULL;
}
int xv_attr_SetPortAttribute(const struct xv_attr_data *attrs,
size_t n_attr, ScrnInfoPtr pScrn, Atom attribute,
INT32 value, pointer data)
{
const struct xv_attr_data *attr =
xv_attr_find_attribute(attrs, n_attr, attribute);
if (!attr || !attr->set || !(attr->attr->flags & XvSettable))
return BadMatch;
if (value < attr->attr->min_value ||
value > attr->attr->max_value)
return BadValue;
return attr->set(pScrn, attr, value + attr->offset, data);
}
int xv_attr_GetPortAttribute(const struct xv_attr_data *attrs,
size_t n_attr, ScrnInfoPtr pScrn, Atom attribute,
INT32 *value, pointer data)
{
const struct xv_attr_data *attr =
xv_attr_find_attribute(attrs, n_attr, attribute);
int ret;
if (!attr || !attr->get || !(attr->attr->flags & XvGettable))
return BadMatch;
ret = attr->get(pScrn, attr, value, data);
if (ret == Success)
*value -= attr->offset;
return ret;
}
#define MAKE_ATOM(a) MakeAtom(a, strlen(a), TRUE)
Bool xv_attr_init(struct xv_attr_data *attrs, size_t n_attr)
{
if (attrs->x_atom)
return TRUE;
while (n_attr--) {
attrs->x_atom = MAKE_ATOM(attrs->attr->name);
if (attrs->x_atom == BAD_RESOURCE)
return FALSE;
attrs++;
}
return TRUE;
}
|
