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// Copyright 2023 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "VideoCommon/Assets/DirectFilesystemAssetLibrary.h"
#include <algorithm>
#include <fmt/os.h>
#include "Common/FileUtil.h"
#include "Common/Logging/Log.h"
#include "Common/StringUtil.h"
#include "VideoCommon/Assets/CustomTextureData.h"
namespace VideoCommon
{
namespace
{
std::size_t GetAssetSize(const CustomTextureData& data)
{
std::size_t total = 0;
for (const auto& level : data.m_levels)
{
total += level.data.size();
}
return total;
}
} // namespace
CustomAssetLibrary::TimeType
DirectFilesystemAssetLibrary::GetLastAssetWriteTime(const AssetID& asset_id) const
{
std::lock_guard lk(m_lock);
if (auto iter = m_assetid_to_asset_map_path.find(asset_id);
iter != m_assetid_to_asset_map_path.end())
{
const auto& asset_map_path = iter->second;
CustomAssetLibrary::TimeType max_entry;
for (const auto& [key, value] : asset_map_path)
{
std::error_code ec;
const auto tp = std::filesystem::last_write_time(value, ec);
if (ec)
continue;
if (tp > max_entry)
max_entry = tp;
}
return max_entry;
}
return {};
}
CustomAssetLibrary::LoadInfo DirectFilesystemAssetLibrary::LoadTexture(const AssetID& asset_id,
CustomTextureData* data)
{
const auto asset_map = GetAssetMapForID(asset_id);
// Raw texture is expected to have one asset mapped
if (asset_map.empty() || asset_map.size() > 1)
{
ERROR_LOG_FMT(VIDEO, "Asset '{}' error - raw texture expected to have one file mapped!",
asset_id);
return {};
}
const auto& asset_path = asset_map.begin()->second;
std::error_code ec;
const auto last_loaded_time = std::filesystem::last_write_time(asset_path, ec);
if (ec)
{
ERROR_LOG_FMT(VIDEO, "Asset '{}' error - failed to get last write time with error '{}'!",
asset_id, ec);
return {};
}
auto ext = asset_path.extension().string();
Common::ToLower(&ext);
if (ext == ".dds")
{
if (!LoadDDSTexture(data, asset_path.string()))
{
ERROR_LOG_FMT(VIDEO, "Asset '{}' error - could not load dds texture!", asset_id);
return {};
}
if (!LoadMips(asset_path, data))
return {};
return LoadInfo{GetAssetSize(*data), last_loaded_time};
}
else if (ext == ".png")
{
// If we have no levels, create one to pass into LoadPNGTexture
if (data->m_levels.empty())
data->m_levels.push_back({});
if (!LoadPNGTexture(&data->m_levels[0], asset_path.string()))
{
ERROR_LOG_FMT(VIDEO, "Asset '{}' error - could not load png texture!", asset_id);
return {};
}
if (!LoadMips(asset_path, data))
return {};
return LoadInfo{GetAssetSize(*data), last_loaded_time};
}
ERROR_LOG_FMT(VIDEO, "Asset '{}' error - extension '{}' unknown!", asset_id, ext);
return {};
}
void DirectFilesystemAssetLibrary::SetAssetIDMapData(const AssetID& asset_id,
AssetMap asset_path_map)
{
std::lock_guard lk(m_lock);
m_assetid_to_asset_map_path[asset_id] = std::move(asset_path_map);
}
bool DirectFilesystemAssetLibrary::LoadMips(const std::filesystem::path& asset_path,
CustomTextureData* data)
{
if (!data) [[unlikely]]
return false;
std::string path;
std::string filename;
std::string extension;
SplitPath(asset_path.string(), &path, &filename, &extension);
std::string extension_lower = extension;
Common::ToLower(&extension_lower);
// Load additional mip levels
for (u32 mip_level = static_cast<u32>(data->m_levels.size());; mip_level++)
{
const auto mip_level_filename = filename + fmt::format("_mip{}", mip_level);
const auto full_path = path + mip_level_filename + extension;
if (!File::Exists(full_path))
return true;
VideoCommon::CustomTextureData::Level level;
if (extension_lower == ".dds")
{
if (!LoadDDSTexture(&level, full_path, mip_level))
{
ERROR_LOG_FMT(VIDEO, "Custom mipmap '{}' failed to load", mip_level_filename);
return false;
}
}
else if (extension_lower == ".png")
{
if (!LoadPNGTexture(&level, full_path))
{
ERROR_LOG_FMT(VIDEO, "Custom mipmap '{}' failed to load", mip_level_filename);
return false;
}
}
else
{
ERROR_LOG_FMT(VIDEO, "Custom mipmap '{}' has unsupported extension", mip_level_filename);
return false;
}
data->m_levels.push_back(std::move(level));
}
return true;
}
DirectFilesystemAssetLibrary::AssetMap
DirectFilesystemAssetLibrary::GetAssetMapForID(const AssetID& asset_id) const
{
std::lock_guard lk(m_lock);
if (auto iter = m_assetid_to_asset_map_path.find(asset_id);
iter != m_assetid_to_asset_map_path.end())
{
return iter->second;
}
return {};
}
} // namespace VideoCommon
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