From 07ae4e7aebf2212787a0493ee6efab2d76bd6cc6 Mon Sep 17 00:00:00 2001
From: Andre Leiradella <andre@leiradella.com>
Date: Tue, 3 Nov 2015 15:33:49 -0200
Subject: [PATCH] added log messages for the md5 methods being used to identify
 games for cheevos

---
 cheevos.c | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/cheevos.c b/cheevos.c
index e49e081633..0c237e29c9 100644
--- a/cheevos.c
+++ b/cheevos.c
@@ -21,7 +21,6 @@
 #include <rhash.h>
 #include <retro_log.h>
 #include <rthreads/async_job.h>
-#include <retro_miscellaneous.h>
 
 #include "cheevos.h"
 #include "dynamic.h"
@@ -1510,6 +1509,19 @@ static int cheevos_deactivate_unlocks(unsigned game_id, retro_time_t *timeout)
 #define CHEEVOS_SIX_MB   (6 * 1024 * 1024)
 #define CHEEVOS_EIGHT_MB (8 * 1024 * 1024)
 
+static INLINE unsigned next_power_of_2(unsigned n)
+{
+   n--;
+   
+   n |= n >> 1;
+   n |= n >> 2;
+   n |= n >> 4;
+   n |= n >> 8;
+   n |= n >> 16;
+   
+   return n + 1;
+}
+
 static size_t cheevos_eval_md5(const struct retro_game_info *info, MD5_CTX *ctx)
 {
    MD5_Init(ctx);
@@ -1670,7 +1682,7 @@ static unsigned cheevos_find_game_id_nes(const struct retro_game_info *info, ret
       return 0;
    
    if (header.rom_size)
-      rom_size = next_pow2(header.rom_size) * 16384;
+      rom_size = next_power_of_2(header.rom_size) * 16384;
    else
       rom_size = 4194304;
    
@@ -1728,6 +1740,14 @@ int cheevos_load(const struct retro_game_info *info)
       cheevos_find_game_id_nes,
    };
    
+   static const char *finders_names[] =
+   {
+      "Genesis (6Mb padding)",
+      "Generic (plain content)",
+      "SNES (8Mb padding)",
+      "NES (discards VROM)",
+   };
+   
    retro_time_t timeout = 5000000;
    unsigned game_id = 0;
    int i;
@@ -1747,6 +1767,7 @@ int cheevos_load(const struct retro_game_info *info)
    
    for (i = 0; i < sizeof(finders) / sizeof(finders[0]); i++)
    {
+      RARCH_LOG("CHEEVOS trying method %s\n", finders_names[i]);
       game_id = finders[i](info, 5000000);
       
       if (game_id)