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84 lines
2.5 KiB
84 lines
2.5 KiB
#include "engine/assets.hpp" |
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#include <algorithm> |
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#include <cstdint> |
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#include <cstring> |
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#include "init.h" |
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#include "mpq/mpq_sdl_rwops.hpp" |
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#include "utils/file_util.h" |
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#include "utils/log.hpp" |
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#include "utils/paths.h" |
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namespace devilution { |
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namespace { |
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bool OpenMpqFile(const char *filename, MpqArchive **archive, uint32_t *fileNumber) |
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{ |
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const MpqArchive::FileHash fileHash = MpqArchive::CalculateFileHash(filename); |
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const auto at = [=](std::optional<MpqArchive> &src) -> bool { |
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if (src && src->GetFileNumber(fileHash, *fileNumber)) { |
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*archive = &(*src); |
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return true; |
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} |
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return false; |
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}; |
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return at(font_mpq) || at(lang_mpq) || at(devilutionx_mpq) |
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|| (gbIsHellfire && (at(hfvoice_mpq) || at(hfmusic_mpq) || at(hfbarb_mpq) || at(hfbard_mpq) || at(hfmonk_mpq) || at(hellfire_mpq))) || at(spawn_mpq) || at(diabdat_mpq); |
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} |
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} // namespace |
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SDL_RWops *OpenAsset(const char *filename, bool threadsafe) |
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{ |
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std::string relativePath = filename; |
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#ifndef _WIN32 |
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std::replace(relativePath.begin(), relativePath.end(), '\\', '/'); |
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#endif |
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if (relativePath[0] == '/') |
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return SDL_RWFromFile(relativePath.c_str(), "rb"); |
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SDL_RWops *rwops; |
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// SDL always logs an error in Debug mode. |
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// We check the file presence in Debug mode to avoid this. |
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const bool isDebug = SDL_LOG_PRIORITY_DEBUG >= SDL_LogGetPriority(SDL_LOG_CATEGORY_APPLICATION); |
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const auto loadFile = [&rwops, isDebug](const std::string &path) { |
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return (!isDebug || FileExists(path.c_str())) |
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&& (rwops = SDL_RWFromFile(path.c_str(), "rb")) != nullptr; |
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}; |
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// Files in the `PrefPath()` directory can override MPQ contents. |
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{ |
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const std::string path = paths::PrefPath() + relativePath; |
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if (loadFile(path)) { |
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LogVerbose("Loaded MPQ file override: {}", path); |
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return rwops; |
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} |
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} |
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// Load from all the MPQ archives. |
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MpqArchive *archive; |
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uint32_t fileNumber; |
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if (OpenMpqFile(filename, &archive, &fileNumber)) |
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return SDL_RWops_FromMpqFile(*archive, fileNumber, filename, threadsafe); |
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// Load from the `/assets` directory next to the devilutionx binary. |
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if (loadFile(paths::AssetsPath() + relativePath)) |
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return rwops; |
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#if defined(__ANDROID__) || defined(__APPLE__) |
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// Fall back to the bundled assets on supported systems. |
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// This is handled by SDL when we pass a relative path. |
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if (!paths::AssetsPath().empty() && (rwops = SDL_RWFromFile(relativePath.c_str(), "rb"))) |
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return rwops; |
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#endif |
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return nullptr; |
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} |
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} // namespace devilution
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