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common/compression: Roll back std::span changes

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Seems like all compilers don't support std::span yet.
This commit is contained in:
Lioncash 2020-08-15 05:25:28 -04:00
parent df72480395
commit 1ee060ca0d
5 changed files with 45 additions and 38 deletions
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35
src/common/lz4_compression.cpp
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@ -10,52 +10,53 @@
namespace Common::Compression {
std::vector<u8> CompressDataLZ4(std::span<const u8> source) {
ASSERT_MSG(source.size() <= LZ4_MAX_INPUT_SIZE, "Source size exceeds LZ4 maximum input size");
std::vector<u8> CompressDataLZ4(const u8* source, std::size_t source_size) {
ASSERT_MSG(source_size <= LZ4_MAX_INPUT_SIZE, "Source size exceeds LZ4 maximum input size");
const auto source_size_int = static_cast<int>(source.size());
const int max_compressed_size = LZ4_compressBound(source_size_int);
const auto source_size_int = static_cast<int>(source_size);
const auto max_compressed_size = static_cast<std::size_t>(LZ4_compressBound(source_size_int));
std::vector<u8> compressed(max_compressed_size);
const int compressed_size = LZ4_compress_default(reinterpret_cast<const char*>(source.data()),
reinterpret_cast<char*>(compressed.data()),
source_size_int, max_compressed_size);
const int compressed_size = LZ4_compress_default(
reinterpret_cast<const char*>(source), reinterpret_cast<char*>(compressed.data()),
source_size_int, static_cast<int>(max_compressed_size));
if (compressed_size <= 0) {
// Compression failed
return {};
}
compressed.resize(compressed_size);
compressed.resize(static_cast<std::size_t>(compressed_size));
return compressed;
}
std::vector<u8> CompressDataLZ4HC(std::span<const u8> source, s32 compression_level) {
ASSERT_MSG(source.size() <= LZ4_MAX_INPUT_SIZE, "Source size exceeds LZ4 maximum input size");
std::vector<u8> CompressDataLZ4HC(const u8* source, std::size_t source_size,
s32 compression_level) {
ASSERT_MSG(source_size <= LZ4_MAX_INPUT_SIZE, "Source size exceeds LZ4 maximum input size");
compression_level = std::clamp(compression_level, LZ4HC_CLEVEL_MIN, LZ4HC_CLEVEL_MAX);
const auto source_size_int = static_cast<int>(source.size());
const int max_compressed_size = LZ4_compressBound(source_size_int);
const auto source_size_int = static_cast<int>(source_size);
const auto max_compressed_size = static_cast<std::size_t>(LZ4_compressBound(source_size_int));
std::vector<u8> compressed(max_compressed_size);
const int compressed_size = LZ4_compress_HC(
reinterpret_cast<const char*>(source.data()), reinterpret_cast<char*>(compressed.data()),
source_size_int, max_compressed_size, compression_level);
reinterpret_cast<const char*>(source), reinterpret_cast<char*>(compressed.data()),
source_size_int, static_cast<int>(max_compressed_size), compression_level);
if (compressed_size <= 0) {
// Compression failed
return {};
}
compressed.resize(compressed_size);
compressed.resize(static_cast<std::size_t>(compressed_size));
return compressed;
}
std::vector<u8> CompressDataLZ4HCMax(std::span<const u8> source) {
return CompressDataLZ4HC(source, LZ4HC_CLEVEL_MAX);
std::vector<u8> CompressDataLZ4HCMax(const u8* source, std::size_t source_size) {
return CompressDataLZ4HC(source, source_size, LZ4HC_CLEVEL_MAX);
}
std::vector<u8> DecompressDataLZ4(const std::vector<u8>& compressed,