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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <fmt/format.h>
#include "common/assert.h"
#include "common/common_paths.h"
#include "common/common_types.h"
#include "common/file_util.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/hle/kernel/process.h"
#include "video_core/renderer_opengl/gl_shader_cache.h"
#include "video_core/renderer_opengl/gl_shader_disk_cache.h"
namespace OpenGL {
enum class EntryKind : u32 {
Raw,
Usage,
};
constexpr u32 NativeVersion = 1;
// Making sure sizes doesn't change by accident
static_assert(sizeof(BaseBindings) == 12);
static_assert(sizeof(ShaderDiskCacheUsage) == 24);
namespace {
std::string GetTitleID() {
return fmt::format("{:016X}", Core::CurrentProcess()->GetTitleID());
}
} // namespace
ShaderDiskCacheRaw::ShaderDiskCacheRaw(FileUtil::IOFile& file) {
file.ReadBytes(&unique_identifier, sizeof(u64));
file.ReadBytes(&program_type, sizeof(u32));
u32 program_code_size{}, program_code_size_b{};
file.ReadBytes(&program_code_size, sizeof(u32));
file.ReadBytes(&program_code_size_b, sizeof(u32));
program_code.resize(program_code_size);
program_code_b.resize(program_code_size_b);
file.ReadArray(program_code.data(), program_code_size);
if (HasProgramA()) {
file.ReadArray(program_code_b.data(), program_code_size_b);
}
}
void ShaderDiskCacheRaw::Save(FileUtil::IOFile& file) const {
file.WriteObject(unique_identifier);
file.WriteObject(static_cast<u32>(program_type));
file.WriteObject(program_code_size);
file.WriteObject(program_code_size_b);
file.WriteArray(program_code.data(), program_code_size);
if (HasProgramA()) {
file.WriteArray(program_code_b.data(), program_code_size_b);
}
}
bool ShaderDiskCacheOpenGL::LoadTransferable(std::vector<ShaderDiskCacheRaw>& raws,
std::vector<ShaderDiskCacheUsage>& usages) {
FileUtil::IOFile file(GetTransferablePath(), "rb");
if (!file.IsOpen()) {
LOG_INFO(Render_OpenGL, "No transferable shader cache found for game with title id={}",
GetTitleID());
return false;
}
const u64 file_size = file.GetSize();
u32 version{};
file.ReadBytes(&version, sizeof(version));
if (version < NativeVersion) {
LOG_INFO(Render_OpenGL, "Transferable shader cache is old - removing");
file.Close();
FileUtil::Delete(GetTransferablePath());
return false;
}
if (version > NativeVersion) {
LOG_WARNING(Render_OpenGL, "Transferable shader cache was generated with a newer version "
"of the emulator - skipping");
return false;
}
// Version is valid, load the shaders
while (file.Tell() < file_size) {
EntryKind kind{};
file.ReadBytes(&kind, sizeof(u32));
switch (kind) {
case EntryKind::Raw: {
ShaderDiskCacheRaw entry{file};
transferable.insert({entry.GetUniqueIdentifier(), {}});
raws.push_back(std::move(entry));
break;
}
case EntryKind::Usage: {
ShaderDiskCacheUsage usage{};
file.ReadBytes(&usage, sizeof(usage));
usages.push_back(std::move(usage));
break;
}
default:
LOG_ERROR(Render_OpenGL, "Unknown transferable shader cache entry kind={} - aborting",
static_cast<u32>(kind));
return false;
}
}
return true;
}
void ShaderDiskCacheOpenGL::SaveRaw(const ShaderDiskCacheRaw& entry) {
const u64 id = entry.GetUniqueIdentifier();
if (transferable.find(id) != transferable.end()) {
// The shader already exists
return;
}
FileUtil::IOFile file = AppendTransferableFile();
if (!file.IsOpen()) {
return;
}
file.WriteObject(EntryKind::Raw);
entry.Save(file);
transferable.insert({id, {}});
}
void ShaderDiskCacheOpenGL::SaveUsage(const ShaderDiskCacheUsage& usage) {
const auto it = transferable.find(usage.unique_identifier);
if (it == transferable.end()) {
LOG_CRITICAL(Render_OpenGL, "Saving shader usage without storing raw previously");
UNREACHABLE();
}
auto& usages{it->second};
ASSERT(usages.find(usage) == usages.end());
usages.insert(usage);
FileUtil::IOFile file = AppendTransferableFile();
if (!file.IsOpen()) {
return;
}
file.WriteObject(EntryKind::Usage);
file.WriteObject(usage);
}
FileUtil::IOFile ShaderDiskCacheOpenGL::AppendTransferableFile() const {
if (!EnsureDirectories()) {
return {};
}
const auto transferable_path{GetTransferablePath()};
const bool existed = FileUtil::Exists(transferable_path);
FileUtil::IOFile file(transferable_path, "ab");
if (!file.IsOpen()) {
LOG_ERROR(Render_OpenGL, "Failed to open transferable cache in path={}", transferable_path);
return {};
}
if (!existed || file.GetSize() == 0) {
// If the file didn't exist, write its version
file.WriteObject(NativeVersion);
}
return file;
}
bool ShaderDiskCacheOpenGL::EnsureDirectories() const {
const auto CreateDir = [](const std::string& dir) {
if (!FileUtil::CreateDir(dir)) {
LOG_ERROR(Render_OpenGL, "Failed to create directory={}", dir);
return false;
}
return true;
};
return CreateDir(FileUtil::GetUserPath(FileUtil::UserPath::ShaderDir)) &&
CreateDir(GetBaseDir()) && CreateDir(GetTransferableDir()) &&
CreateDir(GetPrecompiledDir());
}
std::string ShaderDiskCacheOpenGL::GetTransferablePath() const {
return FileUtil::SanitizePath(GetTransferableDir() + DIR_SEP_CHR + GetTitleID() + ".bin");
}
std::string ShaderDiskCacheOpenGL::GetPrecompiledPath() const {
return FileUtil::SanitizePath(GetPrecompiledDir() + DIR_SEP_CHR + GetTitleID() + ".bin");
}
std::string ShaderDiskCacheOpenGL::GetTransferableDir() const {
return GetBaseDir() + DIR_SEP "transferable";
}
std::string ShaderDiskCacheOpenGL::GetPrecompiledDir() const {
return GetBaseDir() + DIR_SEP "precompiled";
}
std::string ShaderDiskCacheOpenGL::GetBaseDir() const {
return FileUtil::GetUserPath(FileUtil::UserPath::ShaderDir) + DIR_SEP "opengl";
}
} // namespace OpenGL
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