citra/src/core/custom_tex_cache.cpp

111 lines
3.9 KiB
C++

// Copyright 2019 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <fmt/format.h>
#include "common/file_util.h"
#include "common/texture.h"
#include "core.h"
#include "core/custom_tex_cache.h"
namespace Core {
CustomTexCache::CustomTexCache() = default;
CustomTexCache::~CustomTexCache() = default;
bool CustomTexCache::IsTextureDumped(u64 hash) const {
return dumped_textures.count(hash);
}
void CustomTexCache::SetTextureDumped(const u64 hash) {
dumped_textures.insert(hash);
}
bool CustomTexCache::IsTextureCached(u64 hash) const {
return custom_textures.count(hash);
}
const CustomTexInfo& CustomTexCache::LookupTexture(u64 hash) const {
return custom_textures.at(hash);
}
void CustomTexCache::CacheTexture(u64 hash, const std::vector<u8>& tex, u32 width, u32 height) {
custom_textures[hash] = {width, height, tex};
}
void CustomTexCache::AddTexturePath(u64 hash, const std::string& path) {
if (custom_texture_paths.count(hash))
LOG_ERROR(Core, "Textures {} and {} conflict!", custom_texture_paths[hash].path, path);
else
custom_texture_paths[hash] = {path, hash};
}
void CustomTexCache::FindCustomTextures() {
// Custom textures are currently stored as
// [TitleID]/tex1_[width]x[height]_[64-bit hash]_[format].png
const std::string load_path =
fmt::format("{}textures/{:016X}/", FileUtil::GetUserPath(FileUtil::UserPath::LoadDir),
Core::System::GetInstance().Kernel().GetCurrentProcess()->codeset->program_id);
if (FileUtil::Exists(load_path)) {
FileUtil::FSTEntry texture_dir;
std::vector<FileUtil::FSTEntry> textures;
// 64 nested folders should be plenty for most cases
FileUtil::ScanDirectoryTree(load_path, texture_dir, 64);
FileUtil::GetAllFilesFromNestedEntries(texture_dir, textures);
for (const auto& file : textures) {
if (file.isDirectory)
continue;
if (file.virtualName.substr(0, 5) != "tex1_")
continue;
u32 width;
u32 height;
u64 hash;
u32 format; // unused
// TODO: more modern way of doing this
if (std::sscanf(file.virtualName.c_str(), "tex1_%ux%u_%llX_%u.png", &width, &height,
&hash, &format) == 4) {
AddTexturePath(hash, file.physicalName);
}
}
}
}
void CustomTexCache::PreloadTextures() {
for (const auto& path : custom_texture_paths) {
const auto& image_interface = Core::System::GetInstance().GetImageInterface();
const auto& path_info = path.second;
Core::CustomTexInfo tex_info;
if (image_interface->DecodePNG(tex_info.tex, tex_info.width, tex_info.height,
path_info.path)) {
// Make sure the texture size is a power of 2
std::bitset<32> width_bits(tex_info.width);
std::bitset<32> height_bits(tex_info.height);
if (width_bits.count() == 1 && height_bits.count() == 1) {
LOG_DEBUG(Render_OpenGL, "Loaded custom texture from {}", path_info.path);
Common::FlipRGBA8Texture(tex_info.tex, tex_info.width, tex_info.height);
CacheTexture(path_info.hash, tex_info.tex, tex_info.width, tex_info.height);
} else {
LOG_ERROR(Render_OpenGL, "Texture {} size is not a power of 2", path_info.path);
}
} else {
LOG_ERROR(Render_OpenGL, "Failed to load custom texture {}", path_info.path);
}
}
}
bool CustomTexCache::CustomTextureExists(u64 hash) const {
return custom_texture_paths.count(hash);
}
const CustomTexPathInfo& CustomTexCache::LookupTexturePathInfo(u64 hash) const {
return custom_texture_paths.at(hash);
}
bool CustomTexCache::IsTexturePathMapEmpty() const {
return custom_texture_paths.size() == 0;
}
} // namespace Core