Sliding window array implementation

1 files changed, 23 insertions, 0 deletions

diff --git a/src/vec2sw.c b/src/vec2sw.c
new file mode 100644
index 0000000..0e1aec0
--- /dev/null
+++ b/src/vec2sw.c
@@ -0,0 +1,23 @@
+#include "vec2sw.h"
+#include "slidingwindow.h"
+#include "vec2.h"
+
+vec2d_sw_soa_t vec2d_sw_soa(smrt_arena_t *arena, u64 size) {
+    vec2d_sw_soa_t vs = { .size=size };
+    vs.xs = SMRTA_ALLOC_SLIDINGWINDOW(arena, f64, size);
+    vs.ys = SMRTA_ALLOC_SLIDINGWINDOW(arena, f64, size);
+    return vs;
+}
+
+void vec2d_sw_soa_insert(vec2d_sw_soa_t sw_vs, vec2d_t v) {
+    sw_insert(sw_vs.xs, (void*)&v.x);
+    sw_insert(sw_vs.ys, (void*)&v.y);
+}
+
+vec2d_soa_t vec2d_sw_soa_get(vec2d_sw_soa_t sw_vs) {
+    return (vec2d_soa_t){
+        .size = sw_vs.xs->num_elements,
+        .xs = SLIDINGWINDOW_GET(sw_vs.xs, f64),
+        .ys = SLIDINGWINDOW_GET(sw_vs.ys, f64),
+    };
+}