From 8fb0f7c5551ed450ef3ed56615e0d86f1b56739d Mon Sep 17 00:00:00 2001
From: Glenn <glenn.hevey@gmail.com>
Date: Sun, 10 Dec 2017 23:25:01 +1100
Subject: [PATCH] Fixed building for arm64 (iOS)

---
 Makefile.libretro |  7 +++++++
 frontend/cspace.c | 22 ++++++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/Makefile.libretro b/Makefile.libretro
index fb136577..de818aae 100644
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -53,6 +53,13 @@ else ifeq ($(platform), osx)
 	fpic += -mmacosx-version-min=10.1
 
 # iOS
+else ifeq ($(platform),$(filter $(platform),ios9 ios-arm64))
+    ARCH := arm64
+    USE_DYNAREC = 0
+    HAVE_NEON = 0
+    BUILTIN_GPU = peops
+    TARGET := $(TARGET_NAME)_libretro_ios.dylib
+
 else ifneq (,$(findstring ios,$(platform)))
 	ARCH := arm
 	USE_DYNAREC ?= 1
diff --git a/frontend/cspace.c b/frontend/cspace.c
index 33a981df..26f311ff 100644
--- a/frontend/cspace.c
+++ b/frontend/cspace.c
@@ -34,6 +34,28 @@ void bgr555_to_rgb565(void *dst_, const void *src_, int bytes)
 
 #endif
 
+#ifndef __ARM64__
+
+void bgr888_to_rgb565(void *dst_, const void *src_, int bytes)
+{
+    const unsigned char *src = src_;
+    unsigned int *dst = dst_;
+    unsigned int r1, g1, b1, r2, g2, b2;
+
+    for (; bytes >= 6; bytes -= 6, src += 6, dst++) {
+        r1 = src[0] & 0xf8;
+        g1 = src[1] & 0xfc;
+        b1 = src[2] & 0xf8;
+        r2 = src[3] & 0xf8;
+        g2 = src[4] & 0xfc;
+        b2 = src[5] & 0xf8;
+        *dst = (r2 << 24) | (g2 << 19) | (b2 << 13) |
+               (r1 << 8) | (g1 << 3) | (b1 >> 3);
+    }
+}
+
+#endif
+
 #ifndef __ARM_NEON__
 
 void bgr888_to_rgb565(void *dst_, const void *src_, int bytes)
-- 
2.39.5