dolphin/Source/Core/VideoCommon/HiresTextures.cpp

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// Copyright 2009 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "VideoCommon/HiresTextures.h"
#include <algorithm>
#include <memory>
#include <mutex>
#include <string>
#include <string_view>
#include <thread>
#include <unordered_map>
#include <utility>
#include <vector>
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#include <xxhash.h>
#include <fmt/format.h>
#include "Common/CommonPaths.h"
#include "Common/FileSearch.h"
#include "Common/FileUtil.h"
#include "Common/Flag.h"
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#include "Common/IOFile.h"
#include "Common/Image.h"
#include "Common/Logging/Log.h"
#include "Common/MemoryUtil.h"
#include "Common/StringUtil.h"
#include "Common/Swap.h"
#include "Common/Thread.h"
#include "Common/Timer.h"
#include "Core/Config/GraphicsSettings.h"
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#include "Core/ConfigManager.h"
#include "VideoCommon/OnScreenDisplay.h"
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#include "VideoCommon/VideoConfig.h"
struct DiskTexture
{
std::string path;
bool has_arbitrary_mipmaps;
};
constexpr std::string_view s_format_prefix{"tex1_"};
static std::unordered_map<std::string, DiskTexture> s_textureMap;
static std::unordered_map<std::string, std::shared_ptr<HiresTexture>> s_textureCache;
static std::mutex s_textureCacheMutex;
static Common::Flag s_textureCacheAbortLoading;
static std::thread s_prefetcher;
void HiresTexture::Init()
{
// Note: Update is not called here so that we handle dynamic textures on startup more gracefully
}
void HiresTexture::Shutdown()
{
Clear();
}
void HiresTexture::Update()
{
if (s_prefetcher.joinable())
{
s_textureCacheAbortLoading.Set();
s_prefetcher.join();
}
if (!g_ActiveConfig.bHiresTextures)
{
Clear();
return;
}
if (!g_ActiveConfig.bCacheHiresTextures)
{
s_textureCache.clear();
}
const std::string& game_id = SConfig::GetInstance().GetGameID();
const std::set<std::string> texture_directories =
GetTextureDirectoriesWithGameId(File::GetUserPath(D_HIRESTEXTURES_IDX), game_id);
const std::vector<std::string> extensions{".png", ".dds"};
for (const auto& texture_directory : texture_directories)
{
const auto texture_paths =
Common::DoFileSearch({texture_directory}, extensions, /*recursive*/ true);
bool failed_insert = false;
for (auto& path : texture_paths)
{
std::string filename;
SplitPath(path, nullptr, &filename, nullptr);
if (filename.substr(0, s_format_prefix.length()) == s_format_prefix)
{
const size_t arb_index = filename.rfind("_arb");
const bool has_arbitrary_mipmaps = arb_index != std::string::npos;
if (has_arbitrary_mipmaps)
filename.erase(arb_index, 4);
const auto [it, inserted] =
s_textureMap.try_emplace(filename, DiskTexture{path, has_arbitrary_mipmaps});
if (!inserted)
{
failed_insert = true;
}
}
}
if (failed_insert)
{
ERROR_LOG_FMT(VIDEO, "One or more textures at path '{}' were already inserted",
texture_directory);
}
}
if (g_ActiveConfig.bCacheHiresTextures)
{
// remove cached but deleted textures
auto iter = s_textureCache.begin();
while (iter != s_textureCache.end())
{
if (s_textureMap.find(iter->first) == s_textureMap.end())
{
iter = s_textureCache.erase(iter);
}
else
{
iter++;
}
}
s_textureCacheAbortLoading.Clear();
s_prefetcher = std::thread(Prefetch);
}
}
void HiresTexture::Clear()
{
if (s_prefetcher.joinable())
{
s_textureCacheAbortLoading.Set();
s_prefetcher.join();
}
s_textureMap.clear();
s_textureCache.clear();
}
void HiresTexture::Prefetch()
{
Common::SetCurrentThreadName("Prefetcher");
size_t size_sum = 0;
const size_t sys_mem = Common::MemPhysical();
const size_t recommended_min_mem = 2 * size_t(1024 * 1024 * 1024);
// keep 2GB memory for system stability if system RAM is 4GB+ - use half of memory in other cases
const size_t max_mem =
(sys_mem / 2 < recommended_min_mem) ? (sys_mem / 2) : (sys_mem - recommended_min_mem);
const u32 start_time = Common::Timer::GetTimeMs();
for (const auto& entry : s_textureMap)
{
const std::string& base_filename = entry.first;
if (base_filename.find("_mip") == std::string::npos)
{
std::unique_lock<std::mutex> lk(s_textureCacheMutex);
auto iter = s_textureCache.find(base_filename);
if (iter == s_textureCache.end())
{
// unlock while loading a texture. This may result in a race condition where
// we'll load a texture twice, but it reduces the stuttering a lot.
lk.unlock();
std::unique_ptr<HiresTexture> texture = Load(base_filename, 0, 0);
lk.lock();
if (texture)
{
std::shared_ptr<HiresTexture> ptr(std::move(texture));
iter = s_textureCache.insert(iter, std::make_pair(base_filename, ptr));
}
}
if (iter != s_textureCache.end())
{
for (const Level& l : iter->second->m_levels)
size_sum += l.data.size();
}
}
if (s_textureCacheAbortLoading.IsSet())
{
return;
}
if (size_sum > max_mem)
{
Config::SetCurrent(Config::GFX_HIRES_TEXTURES, false);
OSD::AddMessage(
fmt::format(
"Custom Textures prefetching after {:.1f} MB aborted, not enough RAM available",
size_sum / (1024.0 * 1024.0)),
10000);
return;
}
}
const u32 stop_time = Common::Timer::GetTimeMs();
OSD::AddMessage(fmt::format("Custom Textures loaded, {:.1f} MB in {:.1f}s",
size_sum / (1024.0 * 1024.0), (stop_time - start_time) / 1000.0),
10000);
}
std::string HiresTexture::GenBaseName(TextureInfo& texture_info, bool dump)
{
if (!dump && s_textureMap.empty())
return "";
const auto texture_name_details = texture_info.CalculateTextureName();
// look for an exact match first
const std::string full_name = texture_name_details.GetFullName();
if (dump || s_textureMap.find(full_name) != s_textureMap.end())
return full_name;
// else try and find a wildcard
if (!dump)
{
// Single wildcard ignoring the tlut hash
const std::string texture_name_single_wildcard_tlut =
fmt::format("{}_{}_$_{}", texture_name_details.base_name, texture_name_details.texture_name,
texture_name_details.format_name);
if (s_textureMap.find(texture_name_single_wildcard_tlut) != s_textureMap.end())
return texture_name_single_wildcard_tlut;
// Single wildcard ignoring the texture hash
const std::string texture_name_single_wildcard_tex =
fmt::format("{}_${}_{}", texture_name_details.base_name, texture_name_details.tlut_name,
texture_name_details.format_name);
if (s_textureMap.find(texture_name_single_wildcard_tex) != s_textureMap.end())
return texture_name_single_wildcard_tex;
}
return "";
}
u32 HiresTexture::CalculateMipCount(u32 width, u32 height)
{
u32 mip_width = width;
u32 mip_height = height;
u32 mip_count = 1;
while (mip_width > 1 || mip_height > 1)
{
mip_width = std::max(mip_width / 2, 1u);
mip_height = std::max(mip_height / 2, 1u);
mip_count++;
}
return mip_count;
}
std::shared_ptr<HiresTexture> HiresTexture::Search(TextureInfo& texture_info)
{
const std::string base_filename = GenBaseName(texture_info);
std::lock_guard<std::mutex> lk(s_textureCacheMutex);
auto iter = s_textureCache.find(base_filename);
if (iter != s_textureCache.end())
{
return iter->second;
}
std::shared_ptr<HiresTexture> ptr(
Load(base_filename, texture_info.GetRawWidth(), texture_info.GetRawHeight()));
if (ptr && g_ActiveConfig.bCacheHiresTextures)
{
s_textureCache[base_filename] = ptr;
}
return ptr;
}
std::unique_ptr<HiresTexture> HiresTexture::Load(const std::string& base_filename, u32 width,
u32 height)
{
// We need to have a level 0 custom texture to even consider loading.
auto filename_iter = s_textureMap.find(base_filename);
if (filename_iter == s_textureMap.end())
return nullptr;
// Try to load level 0 (and any mipmaps) from a DDS file.
// If this fails, it's fine, we'll just load level0 again using SOIL.
// Can't use make_unique due to private constructor.
std::unique_ptr<HiresTexture> ret = std::unique_ptr<HiresTexture>(new HiresTexture());
const DiskTexture& first_mip_file = filename_iter->second;
ret->m_has_arbitrary_mipmaps = first_mip_file.has_arbitrary_mipmaps;
LoadDDSTexture(ret.get(), first_mip_file.path);
// Load remaining mip levels, or from the start if it's not a DDS texture.
for (u32 mip_level = static_cast<u32>(ret->m_levels.size());; mip_level++)
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{
std::string filename = base_filename;
if (mip_level != 0)
filename += fmt::format("_mip{}", mip_level);
filename_iter = s_textureMap.find(filename);
if (filename_iter == s_textureMap.end())
break;
// Try loading DDS textures first, that way we maintain compression of DXT formats.
// TODO: Reduce the number of open() calls here. We could use one fd.
Level level;
if (!LoadDDSTexture(level, filename_iter->second.path, mip_level))
{
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File::IOFile file;
file.Open(filename_iter->second.path, "rb");
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std::vector<u8> buffer(file.GetSize());
file.ReadBytes(buffer.data(), file.GetSize());
if (!LoadTexture(level, buffer))
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{
ERROR_LOG_FMT(VIDEO, "Custom texture {} failed to load", filename);
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break;
}
}
ret->m_levels.push_back(std::move(level));
}
// If we failed to load any mip levels, we can't use this texture at all.
if (ret->m_levels.empty())
return nullptr;
// Verify that the aspect ratio of the texture hasn't changed, as this could have side-effects.
const Level& first_mip = ret->m_levels[0];
if (first_mip.width * height != first_mip.height * width)
{
ERROR_LOG_FMT(VIDEO,
"Invalid custom texture size {}x{} for texture {}. The aspect differs "
"from the native size {}x{}.",
first_mip.width, first_mip.height, first_mip_file.path, width, height);
}
// Same deal if the custom texture isn't a multiple of the native size.
if (width != 0 && height != 0 && (first_mip.width % width || first_mip.height % height))
{
ERROR_LOG_FMT(VIDEO,
"Invalid custom texture size {}x{} for texture {}. Please use an integer "
"upscaling factor based on the native size {}x{}.",
first_mip.width, first_mip.height, first_mip_file.path, width, height);
}
// Verify that each mip level is the correct size (divide by 2 each time).
u32 current_mip_width = first_mip.width;
u32 current_mip_height = first_mip.height;
for (u32 mip_level = 1; mip_level < static_cast<u32>(ret->m_levels.size()); mip_level++)
{
if (current_mip_width != 1 || current_mip_height != 1)
{
current_mip_width = std::max(current_mip_width / 2, 1u);
current_mip_height = std::max(current_mip_height / 2, 1u);
const Level& level = ret->m_levels[mip_level];
if (current_mip_width == level.width && current_mip_height == level.height)
continue;
ERROR_LOG_FMT(
VIDEO, "Invalid custom texture size {}x{} for texture {}. Mipmap level {} must be {}x{}.",
level.width, level.height, first_mip_file.path, mip_level, current_mip_width,
current_mip_height);
}
else
{
// It is invalid to have more than a single 1x1 mipmap.
ERROR_LOG_FMT(VIDEO, "Custom texture {} has too many 1x1 mipmaps. Skipping extra levels.",
first_mip_file.path);
}
// Drop this mip level and any others after it.
while (ret->m_levels.size() > mip_level)
ret->m_levels.pop_back();
}
// All levels have to have the same format.
if (std::any_of(ret->m_levels.begin(), ret->m_levels.end(),
[&ret](const Level& l) { return l.format != ret->m_levels[0].format; }))
{
ERROR_LOG_FMT(VIDEO, "Custom texture {} has inconsistent formats across mip levels.",
first_mip_file.path);
return nullptr;
}
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return ret;
}
bool HiresTexture::LoadTexture(Level& level, const std::vector<u8>& buffer)
{
if (!Common::LoadPNG(buffer, &level.data, &level.width, &level.height))
return false;
if (level.data.empty())
return false;
// Loaded PNG images are converted to RGBA.
level.format = AbstractTextureFormat::RGBA8;
level.row_length = level.width;
return true;
}
std::set<std::string> GetTextureDirectoriesWithGameId(const std::string& root_directory,
const std::string& game_id)
{
std::set<std::string> result;
const std::string texture_directory = root_directory + game_id;
if (File::Exists(texture_directory))
{
result.insert(texture_directory);
}
else
{
// If there's no directory with the region-specific ID, look for a 3-character region-free one
const std::string region_free_directory = root_directory + game_id.substr(0, 3);
if (File::Exists(region_free_directory))
{
result.insert(region_free_directory);
}
}
const auto match_gameid = [game_id](const std::string& filename) {
std::string basename;
SplitPath(filename, nullptr, &basename, nullptr);
return basename == game_id || basename == game_id.substr(0, 3);
};
// Look for any other directories that might be specific to the given gameid
const auto files = Common::DoFileSearch({root_directory}, {".txt"}, true);
for (const auto& file : files)
{
if (match_gameid(file))
{
// The following code is used to calculate the top directory
// of a found gameid.txt file
// ex: <root directory>/My folder/gameids/<gameid>.txt
// would insert "<root directory>/My folder"
const auto directory_path = file.substr(root_directory.size());
const std::size_t first_path_separator_position = directory_path.find_first_of(DIR_SEP_CHR);
result.insert(root_directory + directory_path.substr(0, first_path_separator_position));
}
}
return result;
}
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HiresTexture::~HiresTexture()
{
}
AbstractTextureFormat HiresTexture::GetFormat() const
{
return m_levels.at(0).format;
}
bool HiresTexture::HasArbitraryMipmaps() const
{
return m_has_arbitrary_mipmaps;
}