Extend renderbatch_add to handle multiple models

1 files changed, 15 insertions, 1 deletions

diff --git a/src/rendering/src/rendering.c b/src/rendering/src/rendering.c
index 0c1052a..06880fd 100644
--- a/src/rendering/src/rendering.c
+++ b/src/rendering/src/rendering.c
@@ -85,7 +85,21 @@ ShaderBuffer* shaderbuffer_cat(ShaderBuffer* dst, ShaderBuffer *restrict src) {
 
   // Assume that we single-handedly control the pointer to the data, copy and
   // free the stuff.
-  //
+
+  // Verify the size
+  const isize sz_src = src->size_elem * src->count;
+  const isize sz_dst = dst->size_elem * dst->count;
+  if (sz_src + sz_dst >= dst->size) {
+    const isize sz_new = (1 + ((sz_src + sz_dst) / 4096)) * 4096;
+    // Resize dst size
+    dst->data = realloc(dst->data, sz_new);
+    dst->size = sz_new;
+  }
+
+  memcpy(dst->data + sz_dst, src->data, sz_src);
+
+  dst->count += src->count;
+
   return dst;
 }