Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 45 insertions, 0 deletions

diff --git a/gfx/skia/skia/src/core/SkMD5.h b/gfx/skia/skia/src/core/SkMD5.h
new file mode 100644
index 0000000000..10cacf188b
--- /dev/null
+++ b/gfx/skia/skia/src/core/SkMD5.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkMD5_DEFINED
+#define SkMD5_DEFINED
+
+#include "include/core/SkStream.h"
+#include "include/private/base/SkTo.h"
+
+#include <cstdint>
+#include <cstring>
+
+/* Calculate a 128-bit MD5 message-digest of the bytes sent to this stream. */
+class SkMD5 : public SkWStream {
+public:
+    SkMD5();
+
+    /** Processes input, adding it to the digest.
+        Calling this after finish is undefined.  */
+    bool write(const void* buffer, size_t size) final;
+
+    size_t bytesWritten() const final { return SkToSizeT(this->byteCount); }
+
+    struct Digest {
+        uint8_t data[16];
+        bool operator ==(Digest const& other) const {
+            return 0 == memcmp(data, other.data, sizeof(data));
+        }
+        bool operator !=(Digest const& other) const { return !(*this == other); }
+    };
+
+    /** Computes and returns the digest. */
+    Digest finish();
+
+private:
+    uint64_t byteCount;  // number of bytes, modulo 2^64
+    uint32_t state[4];   // state (ABCD)
+    uint8_t buffer[64];  // input buffer
+};
+
+#endif