diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/core-files.json | 1 | ||||
-rw-r--r-- | src/mbgl/util/compression.cpp | 104 |
2 files changed, 0 insertions, 105 deletions
diff --git a/src/core-files.json b/src/core-files.json index 4867bd3dc4..d881e6259d 100644 --- a/src/core-files.json +++ b/src/core-files.json @@ -284,7 +284,6 @@ "src/mbgl/tile/vector_tile_data.cpp", "src/mbgl/util/chrono.cpp", "src/mbgl/util/color.cpp", - "src/mbgl/util/compression.cpp", "src/mbgl/util/constants.cpp", "src/mbgl/util/convert.cpp", "src/mbgl/util/dtoa.cpp", diff --git a/src/mbgl/util/compression.cpp b/src/mbgl/util/compression.cpp deleted file mode 100644 index 1742898f9e..0000000000 --- a/src/mbgl/util/compression.cpp +++ /dev/null @@ -1,104 +0,0 @@ -#include <mbgl/util/compression.hpp> - -#if defined(__QT__) && defined(_WIN32) && !defined(__GNUC__) -#include <QtZlib/zlib.h> -#else -#include <zlib.h> -#endif - -#include <cstdio> -#include <cstring> -#include <stdexcept> - -// Check zlib library version. -const static bool zlibVersionCheck __attribute__((unused)) = []() { - const char *const version = zlibVersion(); - if (version[0] != ZLIB_VERSION[0]) { - char message[96]; - snprintf(message, 96, "zlib version mismatch: headers report %s, but library reports %s", - ZLIB_VERSION, version); - throw std::runtime_error(message); - } - - return true; -}(); - -namespace mbgl { -namespace util { - -// Needed when using a zlib compiled with -DZ_PREFIX -// because it will mess with this function name and -// cause a link error. -#undef compress - -std::string compress(const std::string &raw) { - z_stream deflate_stream; - memset(&deflate_stream, 0, sizeof(deflate_stream)); - - // TODO: reuse z_streams - if (deflateInit(&deflate_stream, Z_DEFAULT_COMPRESSION) != Z_OK) { - throw std::runtime_error("failed to initialize deflate"); - } - - deflate_stream.next_in = (Bytef *)raw.data(); - deflate_stream.avail_in = uInt(raw.size()); - - std::string result; - char out[16384]; - - int code; - do { - deflate_stream.next_out = reinterpret_cast<Bytef *>(out); - deflate_stream.avail_out = sizeof(out); - code = deflate(&deflate_stream, Z_FINISH); - if (result.size() < deflate_stream.total_out) { - // append the block to the output string - result.append(out, deflate_stream.total_out - result.size()); - } - } while (code == Z_OK); - - deflateEnd(&deflate_stream); - - if (code != Z_STREAM_END) { - throw std::runtime_error(deflate_stream.msg); - } - - return result; -} - -std::string decompress(const std::string &raw) { - z_stream inflate_stream; - memset(&inflate_stream, 0, sizeof(inflate_stream)); - - // TODO: reuse z_streams - if (inflateInit(&inflate_stream) != Z_OK) { - throw std::runtime_error("failed to initialize inflate"); - } - - inflate_stream.next_in = (Bytef *)raw.data(); - inflate_stream.avail_in = uInt(raw.size()); - - std::string result; - char out[15384]; - - int code; - do { - inflate_stream.next_out = reinterpret_cast<Bytef *>(out); - inflate_stream.avail_out = sizeof(out); - code = inflate(&inflate_stream, 0); - // result.append(out, sizeof(out) - inflate_stream.avail_out); - if (result.size() < inflate_stream.total_out) { - result.append(out, inflate_stream.total_out - result.size()); - } - } while (code == Z_OK); - - inflateEnd(&inflate_stream); - - if (code != Z_STREAM_END) { - throw std::runtime_error(inflate_stream.msg ? inflate_stream.msg : "decompression error"); - } - - return result; -} -} // namespace util -} // namespace mbgl |