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62 lines
1.7 KiB
62 lines
1.7 KiB
2 years ago
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// Copyright 2013 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Helper functions for storing integer values into byte streams.
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// No bounds checking is performed, that is the responsibility of the caller.
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#ifndef WOFF2_STORE_BYTES_H_
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#define WOFF2_STORE_BYTES_H_
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#include <inttypes.h>
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#include <stddef.h>
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#include <string.h>
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namespace woff2 {
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inline size_t StoreU32(uint8_t* dst, size_t offset, uint32_t x) {
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dst[offset] = x >> 24;
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dst[offset + 1] = x >> 16;
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dst[offset + 2] = x >> 8;
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dst[offset + 3] = x;
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return offset + 4;
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}
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inline size_t Store16(uint8_t* dst, size_t offset, int x) {
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dst[offset] = x >> 8;
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dst[offset + 1] = x;
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return offset + 2;
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}
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inline void StoreU32(uint32_t val, size_t* offset, uint8_t* dst) {
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dst[(*offset)++] = val >> 24;
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dst[(*offset)++] = val >> 16;
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dst[(*offset)++] = val >> 8;
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dst[(*offset)++] = val;
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}
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inline void Store16(int val, size_t* offset, uint8_t* dst) {
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dst[(*offset)++] = val >> 8;
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dst[(*offset)++] = val;
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}
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inline void StoreBytes(const uint8_t* data, size_t len,
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size_t* offset, uint8_t* dst) {
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memcpy(&dst[*offset], data, len);
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*offset += len;
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}
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} // namespace woff2
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#endif // WOFF2_STORE_BYTES_H_
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