1290 lines
43 KiB
C++
1290 lines
43 KiB
C++
#include "StarAssets.hpp"
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#include "StarAssetPath.hpp"
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#include "StarFile.hpp"
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#include "StarTime.hpp"
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#include "StarDirectoryAssetSource.hpp"
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#include "StarPackedAssetSource.hpp"
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#include "StarMemoryAssetSource.hpp"
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#include "StarJsonBuilder.hpp"
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#include "StarJsonExtra.hpp"
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#include "StarJsonPatch.hpp"
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#include "StarIterator.hpp"
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#include "StarImageProcessing.hpp"
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#include "StarLogging.hpp"
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#include "StarRandom.hpp"
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#include "StarFont.hpp"
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#include "StarAudio.hpp"
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#include "StarCasting.hpp"
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#include "StarLexicalCast.hpp"
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#include "StarSha256.hpp"
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#include "StarDataStreamDevices.hpp"
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#include "StarLua.hpp"
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#include "StarImageLuaBindings.hpp"
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#include "StarUtilityLuaBindings.hpp"
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namespace Star {
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static void validateBasePath(std::string_view const& basePath) {
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if (basePath.empty() || basePath[0] != '/')
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throw AssetException(strf("Path '{}' must be absolute", basePath));
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bool first = true;
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bool slashed = true;
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bool dotted = false;
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for (auto c : basePath) {
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if (c == '/') {
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if (!first) {
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if (slashed)
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throw AssetException(strf("Path '{}' contains consecutive //, not allowed", basePath));
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else if (dotted)
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throw AssetException(strf("Path '{}' '.' and '..' not allowed", basePath));
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}
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slashed = true;
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dotted = false;
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} else if (c == ':') {
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if (slashed)
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throw AssetException(strf("Path '{}' has ':' after directory", basePath));
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break;
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} else if (c == '?') {
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if (slashed)
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throw AssetException(strf("Path '{}' has '?' after directory", basePath));
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break;
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} else {
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slashed = false;
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dotted = c == '.';
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}
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first = false;
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}
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if (slashed)
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throw AssetException(strf("Path '{}' cannot be a file", basePath));
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}
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static void validatePath(AssetPath const& components, bool canContainSubPath, bool canContainDirectives) {
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validateBasePath(components.basePath.utf8());
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if (!canContainSubPath && components.subPath)
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throw AssetException::format("Path '{}' cannot contain sub-path", components);
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if (!canContainDirectives && !components.directives.empty())
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throw AssetException::format("Path '{}' cannot contain directives", components);
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}
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static void validatePath(StringView const& path, bool canContainSubPath, bool canContainDirectives) {
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std::string_view const& str = path.utf8();
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size_t end = str.find_first_of(":?");
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auto basePath = str.substr(0, end);
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validateBasePath(basePath);
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bool subPath = false;
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if (str[end] == ':') {
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size_t beg = end + 1;
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if (beg != str.size()) {
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end = str.find_first_of('?', beg);
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if (end == NPos && beg + 1 != str.size())
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subPath = true;
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else if (size_t len = end - beg)
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subPath = true;
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}
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}
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if (subPath)
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throw AssetException::format("Path '{}' cannot contain sub-path", path);
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if (end != NPos && str[end] == '?' && !canContainDirectives)
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throw AssetException::format("Path '{}' cannot contain directives", path);
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}
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Maybe<RectU> FramesSpecification::getRect(String const& frame) const {
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if (auto alias = aliases.ptr(frame)) {
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return frames.get(*alias);
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} else {
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return frames.maybe(frame);
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}
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}
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Assets::Assets(Settings settings, StringList assetSources) {
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const char* AssetsPatchSuffix = ".patch";
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const char* AssetsPatchListSuffix = ".patchlist";
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const char* AssetsLuaPatchSuffix = ".patch.lua";
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m_settings = std::move(settings);
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m_stopThreads = false;
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m_assetSources = std::move(assetSources);
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auto luaEngine = LuaEngine::create();
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m_luaEngine = luaEngine;
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auto pushGlobalContext = [&luaEngine](String const& name, LuaCallbacks && callbacks) {
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auto table = luaEngine->createTable();
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for (auto const& p : callbacks.callbacks())
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table.set(p.first, luaEngine->createWrappedFunction(p.second));
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luaEngine->setGlobal(name, table);
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};
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auto makeBaseAssetCallbacks = [this]() {
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LuaCallbacks callbacks;
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callbacks.registerCallbackWithSignature<StringSet, String>("byExtension", bind(&Assets::scanExtension, this, _1));
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callbacks.registerCallbackWithSignature<Json, String>("json", bind(&Assets::json, this, _1));
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callbacks.registerCallback("bytes", [this](String const& path) -> String {
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auto assetBytes = bytes(path);
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return String(assetBytes->ptr(), assetBytes->size());
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});
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callbacks.registerCallback("image", [this](String const& path) -> Image {
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auto assetImage = image(path);
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if (assetImage->bytesPerPixel() == 3)
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return assetImage->convert(PixelFormat::RGBA32);
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else
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return *assetImage;
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});
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callbacks.registerCallback("scan", [this](Maybe<String> const& a, Maybe<String> const& b) -> StringList {
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return b ? scan(a.value(), *b) : scan(a.value());
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});
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return callbacks;
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};
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pushGlobalContext("sb", LuaBindings::makeUtilityCallbacks());
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pushGlobalContext("assets", makeBaseAssetCallbacks());
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auto decorateLuaContext = [&](LuaContext& context, MemoryAssetSourcePtr newFiles) {
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if (newFiles) {
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// re-add the assets callbacks with more functions
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context.remove("assets");
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auto callbacks = makeBaseAssetCallbacks();
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callbacks.registerCallback("add", [newFiles](LuaEngine& engine, String const& path, LuaValue const& data) {
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ByteArray bytes;
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if (auto str = engine.luaMaybeTo<String>(data))
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bytes = ByteArray(str->utf8Ptr(), str->utf8Size());
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else if (auto image = engine.luaMaybeTo<Image>(data)) {
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newFiles->set(path, std::move(*image));
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return;
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} else {
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auto json = engine.luaTo<Json>(data).repr();
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bytes = ByteArray(json.utf8Ptr(), json.utf8Size());
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}
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newFiles->set(path, bytes);
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});
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callbacks.registerCallback("patch", [this, newFiles](String const& path, String const& patchPath) -> bool {
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if (auto file = m_files.ptr(path)) {
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if (newFiles->contains(patchPath)) {
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file->patchSources.append(make_pair(patchPath, newFiles));
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return true;
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} else {
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if (auto asset = m_files.ptr(patchPath)) {
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file->patchSources.append(make_pair(patchPath, asset->source));
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return true;
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}
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}
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}
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return false;
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});
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callbacks.registerCallback("erase", [this](String const& path) -> bool {
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bool erased = m_files.erase(path);
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if (erased)
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m_filesByExtension[AssetPath::extension(path).toLower()].erase(path);
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return erased;
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});
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context.setCallbacks("assets", callbacks);
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}
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};
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auto addSource = [&](String const& sourcePath, AssetSourcePtr source) {
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m_assetSourcePaths.add(sourcePath, source);
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for (auto const& filename : source->assetPaths()) {
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if (filename.contains(AssetsPatchSuffix, String::CaseInsensitive)) {
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if (filename.endsWith(AssetsPatchSuffix, String::CaseInsensitive)) {
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auto targetPatchFile = filename.substr(0, filename.size() - strlen(AssetsPatchSuffix));
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if (auto p = m_files.ptr(targetPatchFile))
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p->patchSources.append({filename, source});
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} else if (filename.endsWith(AssetsLuaPatchSuffix, String::CaseInsensitive)) {
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auto targetPatchFile = filename.substr(0, filename.size() - strlen(AssetsLuaPatchSuffix));
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if (auto p = m_files.ptr(targetPatchFile))
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p->patchSources.append({filename, source});
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} else if (filename.endsWith(AssetsPatchListSuffix, String::CaseInsensitive)) {
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auto stream = source->read(filename);
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size_t patchIndex = 0;
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for (auto const& patchPair : inputUtf8Json(stream.begin(), stream.end(), JsonParseType::Top).iterateArray()) {
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auto patches = patchPair.getArray("patches");
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for (auto& path : patchPair.getArray("paths")) {
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if (auto p = m_files.ptr(path.toString())) {
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for (size_t i = 0; i != patches.size(); ++i) {
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auto& patch = patches[i];
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if (patch.isType(Json::Type::String))
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p->patchSources.append({patch.toString(), source});
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else
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p->patchSources.append({strf("{}:[{}].patches[{}]", filename, patchIndex, i), source});
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}
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}
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}
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patchIndex++;
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}
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} else {
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for (int i = 0; i < 10; i++) {
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if (filename.endsWith(AssetsPatchSuffix + toString(i), String::CaseInsensitive)) {
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auto targetPatchFile = filename.substr(0, filename.size() - strlen(AssetsPatchSuffix) + 1);
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if (auto p = m_files.ptr(targetPatchFile))
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p->patchSources.append({filename, source});
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break;
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}
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}
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}
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}
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auto& descriptor = m_files[filename];
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descriptor.sourceName = filename;
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descriptor.source = source;
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m_filesByExtension[AssetPath::extension(filename).toLower()].insert(filename);
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}
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};
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auto runLoadScripts = [&](String const& groupName, String const& sourcePath, AssetSourcePtr source) {
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auto metadata = source->metadata();
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if (auto scripts = metadata.ptr("scripts")) {
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if (auto scriptGroup = scripts->optArray(groupName)) {
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auto memoryName = strf("{}::{}", metadata.value("name", File::baseName(sourcePath)), groupName);
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JsonObject memoryMetadata{ {"name", memoryName} };
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auto memoryAssets = make_shared<MemoryAssetSource>(memoryName, memoryMetadata);
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Logger::info("Running {} scripts {}", groupName, *scriptGroup);
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try {
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auto context = luaEngine->createContext();
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decorateLuaContext(context, memoryAssets);
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for (auto& jPath : *scriptGroup) {
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auto path = jPath.toString();
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auto script = source->read(path);
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context.load(script, path);
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}
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} catch (LuaException const& e) {
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Logger::error("Exception while running {} scripts from asset source '{}': {}", groupName, sourcePath, e.what());
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}
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if (!memoryAssets->empty())
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addSource(strf("{}::{}", sourcePath, groupName), memoryAssets);
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}
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}
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// clear any caching that may have been trigered by load scripts as they may no longer be valid
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m_framesSpecifications.clear();
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m_assetsCache.clear();
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};
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List<pair<String, AssetSourcePtr>> sources;
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for (auto& sourcePath : m_assetSources) {
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Logger::info("Loading assets from: '{}'", sourcePath);
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AssetSourcePtr source;
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if (File::isDirectory(sourcePath))
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source = std::make_shared<DirectoryAssetSource>(sourcePath, m_settings.pathIgnore);
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else
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source = std::make_shared<PackedAssetSource>(sourcePath);
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addSource(sourcePath, source);
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sources.append(make_pair(sourcePath, source));
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runLoadScripts("onLoad", sourcePath, source);
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}
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for (auto& pair : sources)
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runLoadScripts("postLoad", pair.first, pair.second);
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Sha256Hasher digest;
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for (auto const& assetPath : m_files.keys().transformed([](String const& s) {
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return s.toLower();
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}).sorted()) {
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bool digestFile = true;
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for (auto const& pattern : m_settings.digestIgnore) {
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if (assetPath.regexMatch(pattern, false, false)) {
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digestFile = false;
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break;
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}
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}
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auto const& descriptor = m_files.get(assetPath);
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if (digestFile) {
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digest.push(assetPath);
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digest.push(DataStreamBuffer::serialize(descriptor.source->open(descriptor.sourceName)->size()));
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for (auto const& pair : descriptor.patchSources)
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digest.push(DataStreamBuffer::serialize(pair.second->open(AssetPath::removeSubPath(pair.first))->size()));
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}
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}
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m_digest = digest.compute();
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int workerPoolSize = m_settings.workerPoolSize;
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for (int i = 0; i < workerPoolSize; i++)
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m_workerThreads.append(Thread::invoke("Assets::workerMain", mem_fn(&Assets::workerMain), this));
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}
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Assets::~Assets() {
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m_stopThreads = true;
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{
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// Should lock associated mutex to prevent loss of wakeups,
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MutexLocker locker(m_assetsMutex);
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// Notify all worker threads to allow them to stop
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m_assetsQueued.broadcast();
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}
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// Join them all
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m_workerThreads.clear();
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}
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StringList Assets::assetSources() const {
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MutexLocker assetsLocker(m_assetsMutex);
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return m_assetSources;
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}
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JsonObject Assets::assetSourceMetadata(String const& sourceName) const {
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MutexLocker assetsLocker(m_assetsMutex);
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return m_assetSourcePaths.getRight(sourceName)->metadata();
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}
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ByteArray Assets::digest() const {
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MutexLocker assetsLocker(m_assetsMutex);
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return m_digest;
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}
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bool Assets::assetExists(String const& path) const {
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MutexLocker assetsLocker(m_assetsMutex);
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return m_files.contains(path);
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}
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Maybe<Assets::AssetFileDescriptor> Assets::assetDescriptor(String const& path) const {
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MutexLocker assetsLocker(m_assetsMutex);
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return m_files.maybe(path);
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}
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String Assets::assetSource(String const& path) const {
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MutexLocker assetsLocker(m_assetsMutex);
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if (auto p = m_files.ptr(path))
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return m_assetSourcePaths.getLeft(p->source);
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throw AssetException(strf("No such asset '{}'", path));
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}
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Maybe<String> Assets::assetSourcePath(AssetSourcePtr const& source) const {
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MutexLocker assetsLocker(m_assetsMutex);
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return m_assetSourcePaths.maybeLeft(source);
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}
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StringList Assets::scan(String const& suffix) const {
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if (suffix.beginsWith(".") && !suffix.substr(1).hasChar('.')) {
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return scanExtension(suffix).values();
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} else if (suffix.empty()) {
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return m_files.keys();
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} else {
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StringList result;
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for (auto const& fileEntry : m_files) {
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String const& file = fileEntry.first;
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if (file.endsWith(suffix, String::CaseInsensitive))
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result.append(file);
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}
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return result;
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}
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}
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StringList Assets::scan(String const& prefix, String const& suffix) const {
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StringList result;
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if (suffix.beginsWith(".") && !suffix.substr(1).hasChar('.')) {
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auto& filesWithExtension = scanExtension(suffix);
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for (auto const& file : filesWithExtension) {
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if (file.beginsWith(prefix, String::CaseInsensitive))
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result.append(file);
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}
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} else {
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for (auto const& fileEntry : m_files) {
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String const& file = fileEntry.first;
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if (file.beginsWith(prefix, String::CaseInsensitive) && file.endsWith(suffix, String::CaseInsensitive))
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result.append(file);
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}
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}
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return result;
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}
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const CaseInsensitiveStringSet NullExtensionScan;
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CaseInsensitiveStringSet const& Assets::scanExtension(String const& extension) const {
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auto find = m_filesByExtension.find(extension.beginsWith(".") ? extension.substr(1) : extension);
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return find != m_filesByExtension.end() ? find->second : NullExtensionScan;
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}
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Json Assets::json(String const& path) const {
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auto components = AssetPath::split(path);
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validatePath(components, true, false);
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return as<JsonData>(getAsset(AssetId{AssetType::Json, std::move(components)}))->json;
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}
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Json Assets::fetchJson(Json const& v, String const& dir) const {
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if (v.isType(Json::Type::String))
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return Assets::json(AssetPath::relativeTo(dir, v.toString()));
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else
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return v;
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}
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void Assets::queueJsons(StringList const& paths) const {
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queueAssets(paths.transformed([](String const& path) {
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auto components = AssetPath::split(path);
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validatePath(components, true, false);
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return AssetId{AssetType::Json, {components.basePath, {}, {}}};
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}));
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}
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void Assets::queueJsons(CaseInsensitiveStringSet const& paths) const {
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MutexLocker assetsLocker(m_assetsMutex);
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for (String const& path : paths) {
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auto components = AssetPath::split(path);
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validatePath(components, true, false);
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queueAsset(AssetId{AssetType::Json, {components.basePath, {}, {}}});
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};
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}
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ImageConstPtr Assets::image(AssetPath const& path) const {
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return as<ImageData>(getAsset(AssetId{AssetType::Image, path}))->image;
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}
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void Assets::queueImages(StringList const& paths) const {
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queueAssets(paths.transformed([](String const& path) {
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auto components = AssetPath::split(path);
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validatePath(components, true, true);
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return AssetId{AssetType::Image, std::move(components)};
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}));
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}
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void Assets::queueImages(CaseInsensitiveStringSet const& paths) const {
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MutexLocker assetsLocker(m_assetsMutex);
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for (String const& path : paths) {
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auto components = AssetPath::split(path);
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validatePath(components, true, true);
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queueAsset(AssetId{AssetType::Image, std::move(components)});
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};
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}
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ImageConstPtr Assets::tryImage(AssetPath const& path) const {
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validatePath(path, true, true);
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if (auto imageData = as<ImageData>(tryAsset(AssetId{AssetType::Image, path})))
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return imageData->image;
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else
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return {};
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}
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FramesSpecificationConstPtr Assets::imageFrames(String const& path) const {
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auto components = AssetPath::split(path);
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validatePath(components, false, false);
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MutexLocker assetsLocker(m_assetsMutex);
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return bestFramesSpecification(path);
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}
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AudioConstPtr Assets::audio(String const& path) const {
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auto components = AssetPath::split(path);
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validatePath(components, false, false);
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return as<AudioData>(getAsset(AssetId{AssetType::Audio, std::move(components)}))->audio;
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}
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|
|
|
void Assets::queueAudios(StringList const& paths) const {
|
|
queueAssets(paths.transformed([](String const& path) {
|
|
auto components = AssetPath::split(path);
|
|
validatePath(components, false, false);
|
|
|
|
return AssetId{AssetType::Audio, std::move(components)};
|
|
}));
|
|
}
|
|
|
|
void Assets::queueAudios(CaseInsensitiveStringSet const& paths) const {
|
|
MutexLocker assetsLocker(m_assetsMutex);
|
|
for (String const& path : paths) {
|
|
auto components = AssetPath::split(path);
|
|
validatePath(components, false, true);
|
|
|
|
queueAsset(AssetId{AssetType::Audio, std::move(components)});
|
|
};
|
|
}
|
|
|
|
AudioConstPtr Assets::tryAudio(String const& path) const {
|
|
auto components = AssetPath::split(path);
|
|
validatePath(components, false, false);
|
|
|
|
if (auto audioData = as<AudioData>(tryAsset(AssetId{AssetType::Audio, std::move(components)})))
|
|
return audioData->audio;
|
|
else
|
|
return {};
|
|
}
|
|
|
|
FontConstPtr Assets::font(String const& path) const {
|
|
auto components = AssetPath::split(path);
|
|
validatePath(components, false, false);
|
|
|
|
return as<FontData>(getAsset(AssetId{AssetType::Font, std::move(components)}))->font;
|
|
}
|
|
|
|
ByteArrayConstPtr Assets::bytes(String const& path) const {
|
|
auto components = AssetPath::split(path);
|
|
validatePath(components, false, false);
|
|
|
|
return as<BytesData>(getAsset(AssetId{AssetType::Bytes, std::move(components)}))->bytes;
|
|
}
|
|
|
|
IODevicePtr Assets::openFile(String const& path) const {
|
|
return open(path);
|
|
}
|
|
|
|
void Assets::clearCache() {
|
|
MutexLocker assetsLocker(m_assetsMutex);
|
|
|
|
// Clear all assets that are not queued or broken.
|
|
auto it = makeSMutableMapIterator(m_assetsCache);
|
|
while (it.hasNext()) {
|
|
auto const& pair = it.next();
|
|
// Don't clean up queued, persistent, or broken assets.
|
|
if (pair.second && !pair.second->shouldPersist() && !m_queue.contains(pair.first))
|
|
it.remove();
|
|
}
|
|
}
|
|
|
|
void Assets::cleanup() {
|
|
MutexLocker assetsLocker(m_assetsMutex);
|
|
|
|
double time = Time::monotonicTime();
|
|
|
|
auto it = makeSMutableMapIterator(m_assetsCache);
|
|
while (it.hasNext()) {
|
|
auto pair = it.next();
|
|
// Don't clean up broken assets or queued assets.
|
|
if (pair.second && !m_queue.contains(pair.first)) {
|
|
double liveTime = time - pair.second->time;
|
|
if (liveTime > m_settings.assetTimeToLive) {
|
|
// If the asset should persist, just refresh the access time.
|
|
if (pair.second->shouldPersist())
|
|
pair.second->time = time;
|
|
else
|
|
it.remove();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool Assets::AssetId::operator==(AssetId const& assetId) const {
|
|
return tie(type, path) == tie(assetId.type, assetId.path);
|
|
}
|
|
|
|
size_t Assets::AssetIdHash::operator()(AssetId const& id) const {
|
|
return hashOf(id.type, id.path.basePath, id.path.subPath, id.path.directives);
|
|
}
|
|
|
|
bool Assets::JsonData::shouldPersist() const {
|
|
return !json.unique();
|
|
}
|
|
|
|
bool Assets::ImageData::shouldPersist() const {
|
|
return !alias && !image.unique();
|
|
}
|
|
|
|
bool Assets::AudioData::shouldPersist() const {
|
|
return !audio.unique();
|
|
}
|
|
|
|
bool Assets::FontData::shouldPersist() const {
|
|
return !font.unique();
|
|
}
|
|
|
|
bool Assets::BytesData::shouldPersist() const {
|
|
return !bytes.unique();
|
|
}
|
|
|
|
FramesSpecification Assets::parseFramesSpecification(Json const& frameConfig, String path) {
|
|
FramesSpecification framesSpecification;
|
|
|
|
framesSpecification.framesFile = std::move(path);
|
|
|
|
if (frameConfig.contains("frameList")) {
|
|
for (auto const& pair : frameConfig.get("frameList").toObject()) {
|
|
String frameName = pair.first;
|
|
RectU rect = RectU(jsonToRectI(pair.second));
|
|
if (rect.isEmpty())
|
|
throw AssetException(
|
|
strf("Empty rect in frame specification in image {} frame {}", framesSpecification.framesFile, frameName));
|
|
else
|
|
framesSpecification.frames[frameName] = rect;
|
|
}
|
|
}
|
|
|
|
if (frameConfig.contains("frameGrid")) {
|
|
auto grid = frameConfig.get("frameGrid").toObject();
|
|
|
|
Vec2U begin(jsonToVec2I(grid.value("begin", jsonFromVec2I(Vec2I()))));
|
|
Vec2U size(jsonToVec2I(grid.get("size")));
|
|
Vec2U dimensions(jsonToVec2I(grid.get("dimensions")));
|
|
|
|
if (dimensions[0] == 0 || dimensions[1] == 0)
|
|
throw AssetException(strf("Image {} \"dimensions\" in frameGrid cannot be zero", framesSpecification.framesFile));
|
|
|
|
if (grid.contains("names")) {
|
|
auto nameList = grid.get("names");
|
|
for (size_t y = 0; y < nameList.size(); ++y) {
|
|
if (y >= dimensions[1])
|
|
throw AssetException(strf("Image {} row {} is out of bounds for y-dimension {}",
|
|
framesSpecification.framesFile,
|
|
y + 1,
|
|
dimensions[1]));
|
|
auto rowList = nameList.get(y);
|
|
if (rowList.isNull())
|
|
continue;
|
|
for (unsigned x = 0; x < rowList.size(); ++x) {
|
|
if (x >= dimensions[0])
|
|
throw AssetException(strf("Image {} column {} is out of bounds for x-dimension {}",
|
|
framesSpecification.framesFile,
|
|
x + 1,
|
|
dimensions[0]));
|
|
|
|
auto frame = rowList.get(x);
|
|
if (frame.isNull())
|
|
continue;
|
|
auto frameName = frame.toString();
|
|
if (!frameName.empty())
|
|
framesSpecification.frames[frameName] =
|
|
RectU::withSize(Vec2U(begin[0] + x * size[0], begin[1] + y * size[1]), size);
|
|
}
|
|
}
|
|
} else {
|
|
// If "names" not specified, use auto naming algorithm
|
|
for (size_t y = 0; y < dimensions[1]; ++y)
|
|
for (size_t x = 0; x < dimensions[0]; ++x)
|
|
framesSpecification.frames[toString(y * dimensions[0] + x)] =
|
|
RectU::withSize(Vec2U(begin[0] + x * size[0], begin[1] + y * size[1]), size);
|
|
}
|
|
}
|
|
|
|
if (auto aliasesConfig = frameConfig.opt("aliases")) {
|
|
auto aliases = aliasesConfig->objectPtr();
|
|
for (auto const& pair : *aliases) {
|
|
String const& key = pair.first;
|
|
String value = pair.second.toString();
|
|
|
|
// Resolve aliases to aliases by checking to see if the alias value in
|
|
// the alias map itself. Don't do this more than aliases.size() times to
|
|
// avoid infinite cycles.
|
|
for (size_t i = 0; i <= aliases->size(); ++i) {
|
|
auto it = aliases->find(value);
|
|
if (it != aliases->end()) {
|
|
if (i == aliases->size())
|
|
throw AssetException(strf("Infinite alias loop detected for alias '{}'", key));
|
|
|
|
value = it->second.toString();
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!framesSpecification.frames.contains(value))
|
|
throw AssetException(strf("No such frame '{}' found for alias '{}'", value, key));
|
|
framesSpecification.aliases[key] = std::move(value);
|
|
}
|
|
}
|
|
|
|
return framesSpecification;
|
|
}
|
|
|
|
void Assets::queueAssets(List<AssetId> const& assetIds) const {
|
|
MutexLocker assetsLocker(m_assetsMutex);
|
|
|
|
for (auto const& id : assetIds)
|
|
queueAsset(id);
|
|
}
|
|
|
|
void Assets::queueAsset(AssetId const& assetId) const {
|
|
auto i = m_assetsCache.find(assetId);
|
|
if (i != m_assetsCache.end()) {
|
|
if (i->second)
|
|
freshen(i->second);
|
|
} else {
|
|
auto j = m_queue.find(assetId);
|
|
if (j == m_queue.end()) {
|
|
m_queue[assetId] = QueuePriority::Load;
|
|
m_assetsQueued.signal();
|
|
}
|
|
}
|
|
}
|
|
|
|
shared_ptr<Assets::AssetData> Assets::tryAsset(AssetId const& id) const {
|
|
MutexLocker assetsLocker(m_assetsMutex);
|
|
|
|
auto i = m_assetsCache.find(id);
|
|
if (i != m_assetsCache.end()) {
|
|
if (i->second) {
|
|
freshen(i->second);
|
|
return i->second;
|
|
} else {
|
|
throw AssetException::format("Error loading asset {}", id.path);
|
|
}
|
|
} else {
|
|
auto j = m_queue.find(id);
|
|
if (j == m_queue.end()) {
|
|
m_queue[id] = QueuePriority::Load;
|
|
m_assetsQueued.signal();
|
|
}
|
|
return {};
|
|
}
|
|
}
|
|
|
|
shared_ptr<Assets::AssetData> Assets::getAsset(AssetId const& id) const {
|
|
MutexLocker assetsLocker(m_assetsMutex);
|
|
|
|
while (true) {
|
|
auto j = m_assetsCache.find(id);
|
|
if (j != m_assetsCache.end()) {
|
|
if (j->second) {
|
|
auto asset = j->second;
|
|
freshen(asset);
|
|
return asset;
|
|
} else {
|
|
throw AssetException::format("Error loading asset {}", id.path);
|
|
}
|
|
} else {
|
|
// Try to load the asset in-thread, if we cannot, then the asset has been
|
|
// queued so wait for a worker thread to finish it.
|
|
if (!doLoad(id))
|
|
m_assetsDone.wait(m_assetsMutex);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Assets::workerMain() {
|
|
while (true) {
|
|
if (m_stopThreads)
|
|
break;
|
|
|
|
MutexLocker assetsLocker(m_assetsMutex);
|
|
|
|
AssetId assetId;
|
|
QueuePriority queuePriority = QueuePriority::None;
|
|
|
|
// Find the highest priority queue entry
|
|
for (auto const& pair : m_queue) {
|
|
if (pair.second == QueuePriority::Load || pair.second == QueuePriority::PostProcess) {
|
|
assetId = pair.first;
|
|
queuePriority = pair.second;
|
|
if (pair.second == QueuePriority::Load)
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (queuePriority != QueuePriority::Load && queuePriority != QueuePriority::PostProcess) {
|
|
// Nothing in the queue that needs work
|
|
m_assetsQueued.wait(m_assetsMutex);
|
|
continue;
|
|
}
|
|
|
|
bool workIsBlocking;
|
|
if (queuePriority == QueuePriority::PostProcess)
|
|
workIsBlocking = !doPost(assetId);
|
|
else
|
|
workIsBlocking = !doLoad(assetId);
|
|
|
|
if (workIsBlocking) {
|
|
// We are blocking on some sort of busy asset, so need to wait on
|
|
// something to complete here, rather than spinning and burning cpu.
|
|
m_assetsDone.wait(m_assetsMutex);
|
|
continue;
|
|
}
|
|
|
|
// After processing an asset, unlock the main asset mutex and yield so we
|
|
// don't starve other threads.
|
|
assetsLocker.unlock();
|
|
Thread::yield();
|
|
}
|
|
}
|
|
|
|
template <typename Function>
|
|
decltype(auto) Assets::unlockDuring(Function f) const {
|
|
m_assetsMutex.unlock();
|
|
try {
|
|
auto r = f();
|
|
m_assetsMutex.lock();
|
|
return r;
|
|
} catch (...) {
|
|
m_assetsMutex.lock();
|
|
throw;
|
|
}
|
|
}
|
|
|
|
FramesSpecificationConstPtr Assets::bestFramesSpecification(String const& image) const {
|
|
if (auto framesSpecification = m_framesSpecifications.maybe(image)) {
|
|
return *framesSpecification;
|
|
}
|
|
|
|
String framesFile;
|
|
|
|
if (auto bestFramesFile = m_bestFramesFiles.maybe(image)) {
|
|
framesFile = *bestFramesFile;
|
|
|
|
} else {
|
|
String searchPath = AssetPath::directory(image);
|
|
String filePrefix = AssetPath::filename(image);
|
|
filePrefix = filePrefix.substr(0, filePrefix.findLast('.'));
|
|
|
|
auto subdir = [](String const& dir) -> String {
|
|
auto dirsplit = dir.substr(0, dir.size() - 1).rsplit("/", 1);
|
|
if (dirsplit.size() < 2)
|
|
return "";
|
|
else
|
|
return dirsplit[0] + "/";
|
|
};
|
|
|
|
Maybe<String> foundFramesFile;
|
|
|
|
// look for <full-path-minus-extension>.frames or default.frames up to root
|
|
while (!searchPath.empty()) {
|
|
String framesPath = searchPath + filePrefix + ".frames";
|
|
if (m_files.contains(framesPath)) {
|
|
foundFramesFile = framesPath;
|
|
break;
|
|
}
|
|
|
|
framesPath = searchPath + "default.frames";
|
|
if (m_files.contains(framesPath)) {
|
|
foundFramesFile = framesPath;
|
|
break;
|
|
}
|
|
|
|
searchPath = subdir(searchPath);
|
|
}
|
|
|
|
if (foundFramesFile) {
|
|
framesFile = foundFramesFile.take();
|
|
m_bestFramesFiles[image] = framesFile;
|
|
|
|
} else {
|
|
return {};
|
|
}
|
|
}
|
|
|
|
auto framesSpecification = unlockDuring([&]() {
|
|
return make_shared<FramesSpecification>(parseFramesSpecification(readJson(framesFile), framesFile));
|
|
});
|
|
m_framesSpecifications[image] = framesSpecification;
|
|
|
|
return framesSpecification;
|
|
}
|
|
|
|
IODevicePtr Assets::open(String const& path) const {
|
|
if (auto p = m_files.ptr(path))
|
|
return p->source->open(p->sourceName);
|
|
throw AssetException(strf("No such asset '{}'", path));
|
|
}
|
|
|
|
ByteArray Assets::read(String const& path) const {
|
|
if (auto p = m_files.ptr(path))
|
|
return p->source->read(p->sourceName);
|
|
throw AssetException(strf("No such asset '{}'", path));
|
|
}
|
|
|
|
ImageConstPtr Assets::readImage(String const& path) const {
|
|
if (auto p = m_files.ptr(path)) {
|
|
ImageConstPtr image;
|
|
if (auto memorySource = as<MemoryAssetSource>(p->source))
|
|
image = memorySource->image(p->sourceName);
|
|
if (!image)
|
|
image = make_shared<Image>(Image::readPng(p->source->open(p->sourceName)));
|
|
|
|
if (!p->patchSources.empty()) {
|
|
RecursiveMutexLocker luaLocker(m_luaMutex);
|
|
LuaEngine* luaEngine = as<LuaEngine>(m_luaEngine.get());
|
|
LuaValue result = luaEngine->createUserData(*image);
|
|
luaLocker.unlock();
|
|
for (auto const& pair : p->patchSources) {
|
|
auto& patchPath = pair.first;
|
|
auto& patchSource = pair.second;
|
|
auto patchStream = patchSource->read(patchPath);
|
|
if (patchPath.endsWith(".lua")) {
|
|
luaLocker.lock();
|
|
LuaContextPtr& context = m_patchContexts[patchPath];
|
|
if (!context) {
|
|
context = make_shared<LuaContext>(luaEngine->createContext());
|
|
context->load(patchStream, patchPath);
|
|
}
|
|
auto newResult = context->invokePath<LuaValue>("patch", result, path);
|
|
if (!newResult.is<LuaNilType>()) {
|
|
if (auto ud = newResult.ptr<LuaUserData>()) {
|
|
if (ud->is<Image>())
|
|
result = std::move(newResult);
|
|
else
|
|
Logger::warn("Patch '{}' for image '{}' returned a non-Image userdata value, ignoring");
|
|
} else {
|
|
Logger::warn("Patch '{}' for image '{}' returned a non-Image value, ignoring");
|
|
}
|
|
}
|
|
luaLocker.unlock();
|
|
} else {
|
|
Logger::warn("Patch '{}' for image '{}' isn't a Lua script, ignoring", patchPath, path);
|
|
}
|
|
}
|
|
image = make_shared<Image>(std::move(result.get<LuaUserData>().get<Image>()));
|
|
}
|
|
|
|
return image;
|
|
}
|
|
throw AssetException(strf("No such asset '{}'", path));
|
|
}
|
|
|
|
|
|
Json Assets::checkPatchArray(String const& path, AssetSourcePtr const& source, Json const result, JsonArray const patchData, Maybe<Json> const external) const {
|
|
auto externalRef = external.value();
|
|
auto newResult = result;
|
|
for (auto const& patch : patchData) {
|
|
switch(patch.type()) {
|
|
case Json::Type::Array: // if the patch is an array, go down recursively until we get objects
|
|
try {
|
|
newResult = checkPatchArray(path, source, newResult, patch.toArray(), externalRef);
|
|
} catch (JsonPatchTestFail const& e) {
|
|
Logger::debug("Patch test failure from file {} in source: '{}' at '{}'. Caused by: {}", path, source->metadata().value("name", ""), m_assetSourcePaths.getLeft(source), e.what());
|
|
} catch (JsonPatchException const& e) {
|
|
Logger::error("Could not apply patch from file {} in source: '{}' at '{}'. Caused by: {}", path, source->metadata().value("name", ""), m_assetSourcePaths.getLeft(source), e.what());
|
|
}
|
|
break;
|
|
case Json::Type::Object: // if its an object, check for operations, or for if an external file is needed for patches to reference
|
|
newResult = JsonPatching::applyOperation(newResult, patch, externalRef);
|
|
break;
|
|
case Json::Type::String:
|
|
try {
|
|
externalRef = json(patch.toString());
|
|
} catch (...) {
|
|
throw JsonPatchTestFail(strf("Unable to load reference asset: {}", patch.toString()));
|
|
}
|
|
break;
|
|
default:
|
|
throw JsonPatchException(strf("Patch data is wrong type: {}", Json::typeName(patch.type())));
|
|
break;
|
|
}
|
|
}
|
|
return newResult;
|
|
}
|
|
|
|
Json Assets::readJson(String const& path) const {
|
|
ByteArray streamData = read(path);
|
|
try {
|
|
Json result = inputUtf8Json(streamData.begin(), streamData.end(), JsonParseType::Top);
|
|
for (auto const& pair : m_files.get(path).patchSources) {
|
|
auto patchAssetPath = AssetPath::split(pair.first);
|
|
auto& patchBasePath = patchAssetPath.basePath;
|
|
auto& patchSource = pair.second;
|
|
auto patchStream = patchSource->read(patchBasePath);
|
|
if (patchBasePath.endsWith(".lua")) {
|
|
RecursiveMutexLocker luaLocker(m_luaMutex);
|
|
// Kae: i don't like that lock. perhaps have a LuaEngine and patch context cache per worker thread later on?
|
|
LuaContextPtr& context = m_patchContexts[patchBasePath];
|
|
if (!context) {
|
|
context = make_shared<LuaContext>(as<LuaEngine>(m_luaEngine.get())->createContext());
|
|
context->load(patchStream, patchBasePath);
|
|
}
|
|
auto newResult = context->invokePath<Json>("patch", result, path);
|
|
if (newResult)
|
|
result = std::move(newResult);
|
|
} else {
|
|
auto patchJson = inputUtf8Json(patchStream.begin(), patchStream.end(), JsonParseType::Top);
|
|
if (patchAssetPath.subPath)
|
|
patchJson = patchJson.query(*patchAssetPath.subPath);
|
|
if (patchJson.isType(Json::Type::Array)) {
|
|
auto patchData = patchJson.toArray();
|
|
try {
|
|
result = checkPatchArray(pair.first, patchSource, result, patchData, {});
|
|
} catch (JsonPatchTestFail const& e) {
|
|
Logger::debug("Patch test failure from file {} in source: '{}' at '{}'. Caused by: {}", pair.first, patchSource->metadata().value("name", ""), m_assetSourcePaths.getLeft(patchSource), e.what());
|
|
} catch (JsonPatchException const& e) {
|
|
Logger::error("Could not apply patch from file {} in source: '{}' at '{}'. Caused by: {}", pair.first, patchSource->metadata().value("name", ""), m_assetSourcePaths.getLeft(patchSource), e.what());
|
|
}
|
|
} else if (patchJson.isType(Json::Type::Object)) {
|
|
result = jsonMergeNulling(result, patchJson.toObject());
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
} catch (std::exception const& e) {
|
|
throw JsonParsingException(strf("Cannot parse json file: {}", path), e);
|
|
}
|
|
}
|
|
|
|
|
|
bool Assets::doLoad(AssetId const& id) const {
|
|
try {
|
|
// loadAsset automatically manages the queue and freshens the asset
|
|
// data.
|
|
return (bool)loadAsset(id);
|
|
} catch (std::exception const& e) {
|
|
Logger::error("Exception caught loading asset: {}, {}", id.path, outputException(e, true));
|
|
} catch (...) {
|
|
Logger::error("Unknown exception caught loading asset: {}", id.path);
|
|
}
|
|
|
|
// There was an exception, remove the asset from the queue and fill the cache
|
|
// with null so that getAsset will throw.
|
|
m_assetsCache[id] = {};
|
|
m_assetsDone.broadcast();
|
|
m_queue.remove(id);
|
|
return true;
|
|
}
|
|
|
|
bool Assets::doPost(AssetId const& id) const {
|
|
shared_ptr<AssetData> assetData;
|
|
try {
|
|
assetData = m_assetsCache.get(id);
|
|
if (id.type == AssetType::Audio)
|
|
assetData = postProcessAudio(assetData);
|
|
} catch (std::exception const& e) {
|
|
Logger::error("Exception caught post-processing asset: {}, {}", id.path, outputException(e, true));
|
|
} catch (...) {
|
|
Logger::error("Unknown exception caught post-processing asset: {}", id.path);
|
|
}
|
|
|
|
m_queue.remove(id);
|
|
if (assetData) {
|
|
assetData->needsPostProcessing = false;
|
|
m_assetsCache[id] = assetData;
|
|
freshen(assetData);
|
|
m_assetsDone.broadcast();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
shared_ptr<Assets::AssetData> Assets::loadAsset(AssetId const& id) const {
|
|
if (auto asset = m_assetsCache.value(id))
|
|
return asset;
|
|
|
|
if (m_queue.value(id, QueuePriority::None) == QueuePriority::Working)
|
|
return {};
|
|
|
|
try {
|
|
m_queue[id] = QueuePriority::Working;
|
|
shared_ptr<AssetData> assetData;
|
|
|
|
try {
|
|
if (id.type == AssetType::Json) {
|
|
assetData = loadJson(id.path);
|
|
} else if (id.type == AssetType::Image) {
|
|
assetData = loadImage(id.path);
|
|
} else if (id.type == AssetType::Audio) {
|
|
assetData = loadAudio(id.path);
|
|
} else if (id.type == AssetType::Font) {
|
|
assetData = loadFont(id.path);
|
|
} else if (id.type == AssetType::Bytes) {
|
|
assetData = loadBytes(id.path);
|
|
}
|
|
|
|
} catch (StarException const& e) {
|
|
if (id.type == AssetType::Image && m_settings.missingImage) {
|
|
Logger::error("Could not load image asset '{}', using placeholder default.\n{}", id.path, outputException(e, false));
|
|
assetData = loadImage({*m_settings.missingImage, {}, {}});
|
|
} else if (id.type == AssetType::Audio && m_settings.missingAudio) {
|
|
Logger::error("Could not load audio asset '{}', using placeholder default.\n{}", id.path, outputException(e, false));
|
|
assetData = loadAudio({*m_settings.missingAudio, {}, {}});
|
|
} else {
|
|
throw;
|
|
}
|
|
}
|
|
|
|
if (assetData) {
|
|
if (assetData->needsPostProcessing)
|
|
m_queue[id] = QueuePriority::PostProcess;
|
|
else
|
|
m_queue.remove(id);
|
|
m_assetsCache[id] = assetData;
|
|
m_assetsDone.broadcast();
|
|
freshen(assetData);
|
|
|
|
} else {
|
|
// We have failed to load an asset because it depends on an asset
|
|
// currently being worked on. Mark it as needing loading and move it to
|
|
// the end of the queue.
|
|
m_queue[id] = QueuePriority::Load;
|
|
m_assetsQueued.signal();
|
|
m_queue.toBack(id);
|
|
}
|
|
|
|
return assetData;
|
|
|
|
} catch (...) {
|
|
m_queue.remove(id);
|
|
m_assetsCache[id] = {};
|
|
m_assetsDone.broadcast();
|
|
throw;
|
|
}
|
|
}
|
|
|
|
shared_ptr<Assets::AssetData> Assets::loadJson(AssetPath const& path) const {
|
|
Json json;
|
|
|
|
if (path.subPath) {
|
|
auto topJson =
|
|
as<JsonData>(loadAsset(AssetId{AssetType::Json, {path.basePath, {}, {}}}));
|
|
if (!topJson)
|
|
return {};
|
|
|
|
try {
|
|
auto newData = make_shared<JsonData>();
|
|
newData->json = topJson->json.query(*path.subPath);
|
|
return newData;
|
|
} catch (StarException const& e) {
|
|
throw AssetException(strf("Could not read JSON value {}", path), e);
|
|
}
|
|
} else {
|
|
return unlockDuring([&]() {
|
|
try {
|
|
auto newData = make_shared<JsonData>();
|
|
newData->json = readJson(path.basePath);
|
|
return newData;
|
|
} catch (StarException const& e) {
|
|
throw AssetException(strf("Could not read JSON asset {}", path), e);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
shared_ptr<Assets::AssetData> Assets::loadImage(AssetPath const& path) const {
|
|
validatePath(path, true, true);
|
|
if (!path.directives.empty()) {
|
|
shared_ptr<ImageData> source =
|
|
as<ImageData>(loadAsset(AssetId{AssetType::Image, {path.basePath, path.subPath, {}}}));
|
|
if (!source)
|
|
return {};
|
|
StringMap<ImageConstPtr> references;
|
|
StringList referencePaths;
|
|
|
|
for (auto& directives : path.directives.list())
|
|
directives.loadOperations();
|
|
|
|
path.directives.forEach([&](auto const& entry, Directives const&) {
|
|
addImageOperationReferences(entry.operation, referencePaths);
|
|
}); // TODO: This can definitely be better, was changed quickly to support the new Directives.
|
|
|
|
|
|
for (auto const& ref : referencePaths) {
|
|
auto components = AssetPath::split(ref);
|
|
validatePath(components, true, false);
|
|
auto refImage = as<ImageData>(loadAsset(AssetId{AssetType::Image, std::move(components)}));
|
|
if (!refImage)
|
|
return {};
|
|
references[ref] = refImage->image;
|
|
}
|
|
|
|
return unlockDuring([&]() {
|
|
auto newData = make_shared<ImageData>();
|
|
Image newImage = *source->image;
|
|
path.directives.forEach([&](Directives::Entry const& entry, Directives const&) {
|
|
if (auto error = entry.operation.ptr<ErrorImageOperation>())
|
|
if (auto string = error->cause.ptr<std::string>())
|
|
throw DirectivesException::format("ImageOperation parse error: {}", *string);
|
|
else
|
|
std::rethrow_exception(error->cause.get<std::exception_ptr>());
|
|
else
|
|
processImageOperation(entry.operation, newImage, [&](String const& ref) { return references.get(ref).get(); });
|
|
});
|
|
newData->image = make_shared<Image>(std::move(newImage));
|
|
return newData;
|
|
});
|
|
|
|
} else if (path.subPath) {
|
|
auto imageData = as<ImageData>(loadAsset(AssetId{AssetType::Image, {path.basePath, {}, {}}}));
|
|
if (!imageData)
|
|
return {};
|
|
|
|
// Base image must have frames data associated with it.
|
|
if (!imageData->frames)
|
|
throw AssetException::format("No associated frames file found for image '{}' while resolving image frame '{}'", path.basePath, path);
|
|
|
|
if (auto alias = imageData->frames->aliases.ptr(*path.subPath)) {
|
|
imageData = as<ImageData>(loadAsset(AssetId{AssetType::Image, {path.basePath, *alias, path.directives}}));
|
|
if (!imageData)
|
|
return {};
|
|
|
|
auto newData = make_shared<ImageData>();
|
|
newData->image = imageData->image;
|
|
newData->alias = true;
|
|
return newData;
|
|
|
|
} else {
|
|
auto frameRect = imageData->frames->frames.ptr(*path.subPath);
|
|
if (!frameRect)
|
|
throw AssetException(strf("No such frame {} in frames spec {}", *path.subPath, imageData->frames->framesFile));
|
|
|
|
return unlockDuring([&]() {
|
|
// Need to flip frame coordinates because frame configs assume top
|
|
// down image coordinates
|
|
auto newData = make_shared<ImageData>();
|
|
newData->image = make_shared<Image>(imageData->image->subImage(
|
|
Vec2U(frameRect->xMin(), imageData->image->height() - frameRect->yMax()), frameRect->size()));
|
|
return newData;
|
|
});
|
|
}
|
|
|
|
} else {
|
|
auto imageData = make_shared<ImageData>();
|
|
imageData->image = unlockDuring([&]() {
|
|
return readImage(path.basePath);
|
|
});
|
|
imageData->frames = bestFramesSpecification(path.basePath);
|
|
|
|
return imageData;
|
|
}
|
|
}
|
|
|
|
shared_ptr<Assets::AssetData> Assets::loadAudio(AssetPath const& path) const {
|
|
return unlockDuring([&]() {
|
|
auto newData = make_shared<AudioData>();
|
|
newData->audio = make_shared<Audio>(open(path.basePath));
|
|
newData->needsPostProcessing = newData->audio->compressed();
|
|
return newData;
|
|
});
|
|
}
|
|
|
|
shared_ptr<Assets::AssetData> Assets::loadFont(AssetPath const& path) const {
|
|
return unlockDuring([&]() {
|
|
auto newData = make_shared<FontData>();
|
|
newData->font = Font::loadFont(make_shared<ByteArray>(read(path.basePath)));
|
|
return newData;
|
|
});
|
|
}
|
|
|
|
shared_ptr<Assets::AssetData> Assets::loadBytes(AssetPath const& path) const {
|
|
return unlockDuring([&]() {
|
|
auto newData = make_shared<BytesData>();
|
|
newData->bytes = make_shared<ByteArray>(read(path.basePath));
|
|
return newData;
|
|
});
|
|
}
|
|
|
|
shared_ptr<Assets::AssetData> Assets::postProcessAudio(shared_ptr<AssetData> const& original) const {
|
|
return unlockDuring([&]() -> shared_ptr<AssetData> {
|
|
if (auto audioData = as<AudioData>(original)) {
|
|
if (audioData->audio->totalTime() < m_settings.audioDecompressLimit) {
|
|
auto audio = make_shared<Audio>(*audioData->audio);
|
|
audio->uncompress();
|
|
|
|
auto newData = make_shared<AudioData>();
|
|
newData->audio = audio;
|
|
return newData;
|
|
} else {
|
|
return audioData;
|
|
}
|
|
} else {
|
|
return {};
|
|
}
|
|
});
|
|
}
|
|
|
|
void Assets::freshen(shared_ptr<AssetData> const& asset) const {
|
|
asset->time = Time::monotonicTime();
|
|
}
|
|
|
|
}
|