Split opts_check_arm.cpp into per-class files

src/opts/SkUtils_opts_arm.cpp

+/*
+ * Copyright 2014 ARM Ltd.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkUtils.h"
+#include "SkUtilsArm.h"
+
+#if defined(SK_CPU_LENDIAN) && !SK_ARM_NEON_IS_NONE
+extern "C" void memset16_neon(uint16_t dst[], uint16_t value, int count);
+extern "C" void memset32_neon(uint32_t dst[], uint32_t value, int count);
+#endif
+
+#if defined(SK_CPU_LENDIAN)
+extern "C" void arm_memset16(uint16_t* dst, uint16_t value, int count);
+extern "C" void arm_memset32(uint32_t* dst, uint32_t value, int count);
+#endif
+
+SkMemset16Proc SkMemset16GetPlatformProc() {
+    // FIXME: memset.arm.S is using syntax incompatible with XCode
+#if !defined(SK_CPU_LENDIAN) || defined(SK_BUILD_FOR_IOS)
+    return NULL;
+#elif SK_ARM_NEON_IS_DYNAMIC
+    if (sk_cpu_arm_has_neon()) {
+        return memset16_neon;
+    } else {
+        return arm_memset16;
+    }
+#elif SK_ARM_NEON_IS_ALWAYS
+    return memset16_neon;
+#else
+    return arm_memset16;
+#endif
+}
+
+SkMemset32Proc SkMemset32GetPlatformProc() {
+    // FIXME: memset.arm.S is using syntax incompatible with XCode
+#if !defined(SK_CPU_LENDIAN) || defined(SK_BUILD_FOR_IOS)
+    return NULL;
+#elif SK_ARM_NEON_IS_DYNAMIC
+    if (sk_cpu_arm_has_neon()) {
+        return memset32_neon;
+    } else {
+        return arm_memset32;
+    }
+#elif SK_ARM_NEON_IS_ALWAYS
+    return memset32_neon;
+#else
+    return arm_memset32;
+#endif
+}