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- /*
- * Copyright (C) 2023 Christopher J. Howard
- *
- * This file is part of Antkeeper source code.
- *
- * Antkeeper source code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Antkeeper source code is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
- */
-
- #include "resources/deserialize-context.hpp"
- #include "resources/deserialize-error.hpp"
- #include <physfs.h>
-
- deserialize_context::deserialize_context(void* handle):
- handle(handle),
- m_eof(false),
- m_error(false)
- {}
-
- std::size_t deserialize_context::read8(std::byte* data, std::size_t count)
- {
- const PHYSFS_sint64 status = PHYSFS_readBytes(reinterpret_cast<PHYSFS_File*>(handle), data, count);
-
- if (status < 0)
- {
- m_error = true;
- throw deserialize_error(PHYSFS_getLastError());
- //return 0;
- }
-
- if (status != count)
- {
- m_eof = true;
- m_error = true;
- throw deserialize_error(PHYSFS_getLastError());
- //return static_cast<std::size_t>(count);
- }
-
- return count;
- }
-
- std::size_t deserialize_context::read16_le(std::byte* data, std::size_t count)
- {
- PHYSFS_File* file = reinterpret_cast<PHYSFS_File*>(handle);
- PHYSFS_uint16* data16 = reinterpret_cast<PHYSFS_uint16*>(data);
-
- for (std::size_t i = 0; i < count; ++i)
- {
- if (!PHYSFS_readULE16(file, data16))
- {
- m_eof = (PHYSFS_eof(file) != 0);
- m_error = true;
- throw deserialize_error(PHYSFS_getLastError());
- //return i;
- }
-
- ++data16;
- }
-
- return count;
- }
-
- std::size_t deserialize_context::read16_be(std::byte* data, std::size_t count)
- {
- PHYSFS_File* file = reinterpret_cast<PHYSFS_File*>(handle);
- PHYSFS_uint16* data16 = reinterpret_cast<PHYSFS_uint16*>(data);
-
- for (std::size_t i = 0; i < count; ++i)
- {
- if (!PHYSFS_readUBE16(file, data16))
- {
- m_eof = (PHYSFS_eof(file) != 0);
- m_error = true;
- throw deserialize_error(PHYSFS_getLastError());
- //return i;
- }
-
- ++data16;
- }
-
- return count;
- }
-
- std::size_t deserialize_context::read32_le(std::byte* data, std::size_t count)
- {
- PHYSFS_File* file = reinterpret_cast<PHYSFS_File*>(handle);
- PHYSFS_uint32* data32 = reinterpret_cast<PHYSFS_uint32*>(data);
-
- for (std::size_t i = 0; i < count; ++i)
- {
- if (!PHYSFS_readULE32(file, data32))
- {
- m_eof = (PHYSFS_eof(file) != 0);
- m_error = true;
- throw deserialize_error(PHYSFS_getLastError());
- //return i;
- }
-
- ++data32;
- }
-
- return count;
- }
-
- std::size_t deserialize_context::read32_be(std::byte* data, std::size_t count)
- {
- PHYSFS_File* file = reinterpret_cast<PHYSFS_File*>(handle);
- PHYSFS_uint32* data32 = reinterpret_cast<PHYSFS_uint32*>(data);
-
- for (std::size_t i = 0; i < count; ++i)
- {
- if (!PHYSFS_readUBE32(file, data32))
- {
- m_eof = (PHYSFS_eof(file) != 0);
- m_error = true;
- throw deserialize_error(PHYSFS_getLastError());
- //return i;
- }
-
- ++data32;
- }
-
- return count;
- }
-
- std::size_t deserialize_context::read64_le(std::byte* data, std::size_t count)
- {
- PHYSFS_File* file = reinterpret_cast<PHYSFS_File*>(handle);
- PHYSFS_uint64* data64 = reinterpret_cast<PHYSFS_uint64*>(data);
-
- for (std::size_t i = 0; i < count; ++i)
- {
- if (!PHYSFS_readULE64(file, data64))
- {
- m_eof = (PHYSFS_eof(file) != 0);
- m_error = true;
- throw deserialize_error(PHYSFS_getLastError());
- //return i;
- }
-
- ++data64;
- }
-
- return count;
- }
-
- std::size_t deserialize_context::read64_be(std::byte* data, std::size_t count)
- {
- PHYSFS_File* file = reinterpret_cast<PHYSFS_File*>(handle);
- PHYSFS_uint64* data64 = reinterpret_cast<PHYSFS_uint64*>(data);
-
- for (std::size_t i = 0; i < count; ++i)
- {
- if (!PHYSFS_readUBE64(file, data64))
- {
- m_eof = (PHYSFS_eof(file) != 0);
- m_error = true;
- throw deserialize_error(PHYSFS_getLastError());
- //return i;
- }
-
- ++data64;
- }
-
- return count;
- }
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