From 8329d42d3e592f4cd42cdfa586e2325ddc76c898 Mon Sep 17 00:00:00 2001
From: aura <nw@moneybot.cc>
Date: Tue, 10 Mar 2026 01:35:50 +0100
Subject: perf profiler, simplify 2d render, string struct, many small things

---
 src/util/allocator.h | 37 +++++++++++++++++++++++++++++++++++--
 1 file changed, 35 insertions(+), 2 deletions(-)

(limited to 'src/util/allocator.h')

diff --git a/src/util/allocator.h b/src/util/allocator.h
index 27b21c0..64bad23 100644
--- a/src/util/allocator.h
+++ b/src/util/allocator.h
@@ -5,10 +5,23 @@
 #include <functional>
 #include "typedef.h"
 
-template < typename T >
+template <typename T>
+struct LIST_ITERATOR {
+  T* ptr;
+
+  LIST_ITERATOR( T* ptr ) : ptr( ptr ) {}
+  T& operator*() { return *ptr; }
+  T* operator->() { return ptr; }
+  LIST_ITERATOR& operator++() { ptr++; return *this; }
+  LIST_ITERATOR operator+=( U8 n ) { ptr += n; return *this; }
+  bool operator==( const LIST_ITERATOR& other ) { return ptr == other.ptr; }
+  bool operator!=( const LIST_ITERATOR& other ) { return ptr != other.ptr; }
+};
+
+template <typename T>
 using QSORT_FN = std::function< U8( T*, T* ) >;
 
-template < typename T >
+template <typename T>
 static U8 qsort_basic_sort( T* t1, T* t2 ) {
   return (*t1 > *t2);
 }
@@ -63,6 +76,13 @@ struct LIST {
     size = 0;
   }
 
+  LIST( U32 _size, const T* data ) {
+    data = (T*)malloc( sizeof( T ) * _size );
+    memcpy( data, data, _size * sizeof( T ) );
+    size     = _size;
+    capacity = _size;
+  }
+
   LIST( const LIST<T>& other ) {
     if( !other.capacity || !other.size ) {
       capacity = 1;
@@ -91,6 +111,7 @@ struct LIST {
       capacity = 1;
       size     = 0;
       data     = (T*)malloc( sizeof( T ) );
+      memset( data, 0, sizeof( T ) );
       return *this;
     }
 
@@ -106,6 +127,10 @@ struct LIST {
     free( data );
   }
 
+  T at( U32 index ) {
+    return data[index];
+  }
+
   void reserve( U32 count ) {
     if( capacity >= count )
       return;
@@ -320,4 +345,12 @@ struct LIST {
     ret.sort( fn );
     return ret;
   }
+
+  LIST_ITERATOR<T> begin() {
+    return LIST_ITERATOR<T>( data );
+  }
+
+  LIST_ITERATOR<T> end() {
+    return LIST_ITERATOR<T>( data + size );
+  }
 };
-- 
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