These helpers will be used for handling dynamic arrays of resident
texture/image handles.
Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com>
---
src/gallium/auxiliary/util/u_dynarray.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/src/gallium/auxiliary/util/u_dynarray.h
b/src/gallium/auxiliary/util/u_dynarray.h
index 7b7a093d82..d6f3d5c901 100644
--- a/src/gallium/auxiliary/util/u_dynarray.h
+++ b/src/gallium/auxiliary/util/u_dynarray.h
@@ -109,6 +109,26 @@ util_dynarray_trim(struct util_dynarray *buf)
#define util_dynarray_element(buf, type, idx) ((type*)(buf)->data + (idx))
#define util_dynarray_begin(buf) ((buf)->data)
#define util_dynarray_end(buf) ((void*)util_dynarray_element((buf), char,
(buf)->size))
+#define util_dynarray_shrink(buf, type, begin, end) \
+ do { \
+ void *__begin = util_dynarray_element((buf), type, (begin)); \
+ void *__end = util_dynarray_element((buf), type, (end)); \
+ if ((end) * sizeof(type) < (buf)->size) \
+ memmove(__begin, __end, (buf)->size - ((end) * sizeof(type))); \
+ (buf)->size = (buf)->size - ((end) - (begin)) * sizeof(type); \
+ } while (0)
+#define util_dynarray_delete(buf, type, v) \
+ do { \
+ unsigned num_elements = (buf)->size / sizeof(type); \
+ unsigned i; \
+ for (i = 0; i < num_elements; i++) { \
+ type __v = *util_dynarray_element((buf), type, (i)); \
+ if (v == __v) { \
+ util_dynarray_shrink((buf), type, i, i + 1); \
+ break; \
+ } \
+ } \
+ } while (0)
#endif /* U_DYNARRAY_H */
--
2.13.0
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