some of buffer

1 files changed, 41 insertions, 0 deletions

diff --git a/src/base64/fastavxbase64.h b/src/base64/fastavxbase64.h
new file mode 100644
index 000000000..d1064a5d1
--- /dev/null
+++ b/src/base64/fastavxbase64.h
@@ -0,0 +1,41 @@
+#if defined(__GNUC__) && (defined(__x86_64__) || defined(__i386__))
+
+#ifndef EXPAVX_B64
+#define EXPAVX_B64
+
+/**
+ * Assumes recent x64 hardware with AVX2 instructions.
+ */
+
+#include "chromiumbase64.h"
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/**
+ * This code extends Nick Galbreath's high performance base 64decoder (used in
+ * Chromium), the API is the same effectively, see chromium64.h.
+ */
+
+/*
+ * AVX2 accelerated version of Galbreath's chromium_base64_decode function
+ * Usage remains the same, see chromium.h.
+ */
+size_t fast_avx2_base64_decode(char *out, const char *src, size_t srclen,
+                               size_t *outlen);
+
+/*
+ * AVX2 accelerated version of Galbreath's chromium_base64_encode function
+ * Usage remains the same, see chromium.h.
+ */
+size_t fast_avx2_base64_encode(char *dest, const char *str, size_t len);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif
+#endif
\ No newline at end of file