citra/src/core/loader/smdh.cpp
2018-05-01 19:57:01 +02:00

67 lines
1.7 KiB
C++

// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cstring>
#include <vector>
#include "common/common_types.h"
#include "core/loader/loader.h"
#include "core/loader/smdh.h"
#include "video_core/utils.h"
namespace Loader {
bool IsValidSMDH(const std::vector<u8>& smdh_data) {
if (smdh_data.size() < sizeof(Loader::SMDH))
return false;
u32 magic;
memcpy(&magic, smdh_data.data(), sizeof(u32));
return Loader::MakeMagic('S', 'M', 'D', 'H') == magic;
}
std::vector<u16> SMDH::GetIcon(bool large) const {
u32 size;
const u8* icon_data;
if (large) {
size = 48;
icon_data = large_icon.data();
} else {
size = 24;
icon_data = small_icon.data();
}
std::vector<u16> icon(size * size);
for (u32 x = 0; x < size; ++x) {
for (u32 y = 0; y < size; ++y) {
u32 coarse_y = y & ~7;
const u8* pixel = icon_data + VideoCore::GetMortonOffset(x, y, 2) + coarse_y * size * 2;
icon[x + size * y] = (pixel[1] << 8) + pixel[0];
}
}
return icon;
}
std::array<u16, 0x40> SMDH::GetShortTitle(Loader::SMDH::TitleLanguage language) const {
return titles[static_cast<int>(language)].short_title;
}
SMDH::GameRegion SMDH::GetRegion() const {
if (region_lockout == 0x7fffffff) {
return GameRegion::RegionFree;
}
constexpr u32 REGION_COUNT = 7;
u32 region = 0;
for (; region < REGION_COUNT; ++region) {
if (region_lockout & (1 << region)) {
return static_cast<GameRegion>(region);
}
}
return GameRegion::Invalid;
}
} // namespace Loader