From 9cc830ecd6b4ec220a2c0cf827f2fe50223f8ade Mon Sep 17 00:00:00 2001
From: Andre Leiradella <andre@leiradella.com>
Date: Sun, 29 May 2016 11:30:04 -0300
Subject: [PATCH] fixed getting wrong alpha values from tRNS chunk

---
 libretro-common/formats/png/rpng.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libretro-common/formats/png/rpng.c b/libretro-common/formats/png/rpng.c
index 02c4f888e8..31fa0c8b00 100644
--- a/libretro-common/formats/png/rpng.c
+++ b/libretro-common/formats/png/rpng.c
@@ -1028,6 +1028,8 @@ bool rpng_iterate_image(rpng_t *rpng)
                if (chunk.size > 256)
                   goto error;
                
+               buf += 8;
+
                if (!png_read_trns(buf, rpng->palette, chunk.size))
                   goto error;
             }