1 files changed, 80 insertions, 0 deletions
diff --git a/modules/woff2/src/store_bytes.h b/modules/woff2/src/store_bytes.h
new file mode 100644
index 000000000..e026cd33a
--- /dev/null
+++ b/modules/woff2/src/store_bytes.h
@@ -0,0 +1,80 @@
+// Copyright 2013 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Helper functions for storing integer values into byte streams.
+// No bounds checking is performed, that is the responsibility of the caller.
+
+#ifndef WOFF2_STORE_BYTES_H_
+#define WOFF2_STORE_BYTES_H_
+
+#include <inttypes.h>
+#include <stddef.h>
+#include <string.h>
+
+namespace woff2 {
+
+inline size_t StoreU32(uint8_t* dst, size_t offset, uint32_t x) {
+  dst[offset] = x >> 24;
+  dst[offset + 1] = x >> 16;
+  dst[offset + 2] = x >> 8;
+  dst[offset + 3] = x;
+  return offset + 4;
+}
+
+inline size_t Store16(uint8_t* dst, size_t offset, int x) {
+#if (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__))
+  uint16_t v = ((x & 0xFF) << 8) | ((x & 0xFF00) >> 8);
+  memcpy(dst + offset, &v, 2);
+#elif (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))
+  uint16_t v = static_cast<uint16_t>(x);
+  memcpy(dst + offset, &v, 2);
+#else
+  dst[offset] = x >> 8;
+  dst[offset + 1] = x;
+#endif
+  return offset + 2;
+}
+
+inline void StoreU32(uint32_t val, size_t* offset, uint8_t* dst) {
+  dst[(*offset)++] = val >> 24;
+  dst[(*offset)++] = val >> 16;
+  dst[(*offset)++] = val >> 8;
+  dst[(*offset)++] = val;
+}
+
+inline void Store16(int val, size_t* offset, uint8_t* dst) {
+#if (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__))
+  uint16_t v = ((val & 0xFF) << 8) | ((val & 0xFF00) >> 8);
+  memcpy(dst + *offset, &v, 2);
+      ((val & 0xFF) << 8) | ((val & 0xFF00) >> 8);
+  *offset += 2;
+#elif (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))
+  uint16_t v = static_cast<uint16_t>(val);
+  memcpy(dst + *offset, &v, 2);
+  *offset += 2;
+#else
+  dst[(*offset)++] = val >> 8;
+  dst[(*offset)++] = val;
+#endif
+}
+
+inline void StoreBytes(const uint8_t* data, size_t len,
+                       size_t* offset, uint8_t* dst) {
+  memcpy(&dst[*offset], data, len);
+  *offset += len;
+}
+
+} // namespace woff2
+
+#endif  // WOFF2_STORE_BYTES_H_