From 59d59bad72ade2c85c5d97941694f25a11a6a317 Mon Sep 17 00:00:00 2001
From: sezero <sezero@users.sourceforge.net>
Date: Wed, 8 Aug 2018 11:06:51 +0300
Subject: [PATCH] h5, minihwc.c: VC6 doesn't have _aligned_malloc(). locally
 implemented.

---
 glide3x/h5/minihwc/minihwc.c | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/glide3x/h5/minihwc/minihwc.c b/glide3x/h5/minihwc/minihwc.c
index ef1edf1..8595bc4 100644
--- a/glide3x/h5/minihwc/minihwc.c
+++ b/glide3x/h5/minihwc/minihwc.c
@@ -865,13 +865,30 @@ typedef struct sli_aa_request {
 #define _aligned_free free
 /* don't like macros, because of side-effects */
 #ifndef __WATCOMC__
-static __inline int min (int x, int y)
-{
+static __inline int min(int x, int y) {
  return (x > y) ? y : x;
 }
 #endif
 #endif
 
+#if defined(_MSC_VER) && (_MSC_VER < 1300)
+/* code here only uses 8 byte alignment */
+#define _aligned_malloc(a,b) _aligned_malloc8(a)
+#define _aligned_free _aligned_free8
+static void *_aligned_malloc8(size_t sz) {
+    const size_t align = 7;
+    void *got, **ret;
+    if (!(got = malloc(sizeof(void*) + align + sz))) return NULL;
+    ret = (void **) (((long)got + sizeof(void*) + align) & ~align);
+    ret[-1] = got;
+    return ret;
+}
+static void _aligned_free8(void *ptr) {
+    if (!ptr) return;
+    free (((void**)ptr) [-1]);
+}
+#endif
+
 #ifdef __GNUC__
 
 #define MMX_RESET() __asm __volatile ("emms")