Merge pull request #1817 from linkmauve/smdh-stuff

Improve SMDH support in loaders and frontends

9 files changed, 196 insertions, 105 deletions

diff --git a/src/core/loader/3dsx.cpp b/src/core/loader/3dsx.cpp
index 98e7ab48f..a16411e14 100644
--- a/src/core/loader/3dsx.cpp
+++ b/src/core/loader/3dsx.cpp
@@ -10,6 +10,7 @@
 #include "core/file_sys/archive_romfs.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/resource_limit.h"
+#include "core/hle/service/fs/archive.h"
 #include "core/loader/3dsx.h"
 #include "core/memory.h"
 
@@ -263,6 +264,8 @@ ResultStatus AppLoader_THREEDSX::Load() {
 
     Kernel::g_current_process->Run(48, Kernel::DEFAULT_STACK_SIZE);
 
+    Service::FS::RegisterArchiveType(std::make_unique<FileSys::ArchiveFactory_RomFS>(*this), Service::FS::ArchiveIdCode::RomFS);
+
     is_loaded = true;
     return ResultStatus::Success;
 }
diff --git a/src/core/loader/3dsx.h b/src/core/loader/3dsx.h
index 3ee686703..90b20c61c 100644
--- a/src/core/loader/3dsx.h
+++ b/src/core/loader/3dsx.h
@@ -28,6 +28,14 @@ public:
     static FileType IdentifyType(FileUtil::IOFile& file);
 
     /**
+     * Returns the type of this file
+     * @return FileType corresponding to the loaded file
+     */
+    FileType GetFileType() override {
+        return IdentifyType(file);
+    }
+
+    /**
      * Load the bootable file
      * @return ResultStatus result of function
      */
diff --git a/src/core/loader/elf.h b/src/core/loader/elf.h
index c6a5ebe99..cb3724f9d 100644
--- a/src/core/loader/elf.h
+++ b/src/core/loader/elf.h
@@ -28,6 +28,14 @@ public:
     static FileType IdentifyType(FileUtil::IOFile& file);
 
     /**
+     * Returns the type of this file
+     * @return FileType corresponding to the loaded file
+     */
+    FileType GetFileType() override {
+        return IdentifyType(file);
+    }
+
+    /**
      * Load the bootable file
      * @return ResultStatus result of function
      */
diff --git a/src/core/loader/loader.cpp b/src/core/loader/loader.cpp
index af3f62248..9719d30d5 100644
--- a/src/core/loader/loader.cpp
+++ b/src/core/loader/loader.cpp
@@ -8,9 +8,7 @@
 #include "common/logging/log.h"
 #include "common/string_util.h"
 
-#include "core/file_sys/archive_romfs.h"
 #include "core/hle/kernel/process.h"
-#include "core/hle/service/fs/archive.h"
 #include "core/loader/3dsx.h"
 #include "core/loader/elf.h"
 #include "core/loader/ncch.h"
@@ -67,6 +65,9 @@ FileType GuessFromExtension(const std::string& extension_) {
     if (extension == ".3dsx")
         return FileType::THREEDSX;
 
+    if (extension == ".cia")
+        return FileType::CIA;
+
     return FileType::Unknown;
 }
 
@@ -90,7 +91,15 @@ const char* GetFileTypeString(FileType type) {
     return "unknown";
 }
 
-std::unique_ptr<AppLoader> GetLoader(FileUtil::IOFile&& file, FileType type,
+/**
+ * Get a loader for a file with a specific type
+ * @param file The file to load
+ * @param type The type of the file
+ * @param filename the file name (without path)
+ * @param filepath the file full path (with name)
+ * @return std::unique_ptr<AppLoader> a pointer to a loader object;  nullptr for unsupported type
+ */
+static std::unique_ptr<AppLoader> GetFileLoader(FileUtil::IOFile&& file, FileType type,
     const std::string& filename, const std::string& filepath) {
     switch (type) {
 
@@ -108,15 +117,15 @@ std::unique_ptr<AppLoader> GetLoader(FileUtil::IOFile&& file, FileType type,
         return std::make_unique<AppLoader_NCCH>(std::move(file), filepath);
 
     default:
-        return std::unique_ptr<AppLoader>();
+        return nullptr;
     }
 }
 
-ResultStatus LoadFile(const std::string& filename) {
+std::unique_ptr<AppLoader> GetLoader(const std::string& filename) {
     FileUtil::IOFile file(filename, "rb");
     if (!file.IsOpen()) {
         LOG_ERROR(Loader, "Failed to load file %s", filename.c_str());
-        return ResultStatus::Error;
+        return nullptr;
     }
 
     std::string filename_filename, filename_extension;
@@ -133,44 +142,7 @@ ResultStatus LoadFile(const std::string& filename) {
 
     LOG_INFO(Loader, "Loading file %s as %s...", filename.c_str(), GetFileTypeString(type));
 
-    std::unique_ptr<AppLoader> app_loader = GetLoader(std::move(file), type, filename_filename, filename);
-
-    switch (type) {
-
-    // 3DSX file format...
-    // or NCCH/NCSD container formats...
-    case FileType::THREEDSX:
-    case FileType::CXI:
-    case FileType::CCI:
-    {
-        // Load application and RomFS
-        ResultStatus result = app_loader->Load();
-        if (ResultStatus::Success == result) {
-            Service::FS::RegisterArchiveType(std::make_unique<FileSys::ArchiveFactory_RomFS>(*app_loader), Service::FS::ArchiveIdCode::RomFS);
-            return ResultStatus::Success;
-        }
-        return result;
-    }
-
-    // Standard ELF file format...
-    case FileType::ELF:
-        return app_loader->Load();
-
-    // CIA file format...
-    case FileType::CIA:
-        return ResultStatus::ErrorNotImplemented;
-
-    // Error occurred durring IdentifyFile...
-    case FileType::Error:
-
-    // IdentifyFile could know identify file type...
-    case FileType::Unknown:
-    {
-        LOG_CRITICAL(Loader, "File %s is of unknown type.", filename.c_str());
-        return ResultStatus::ErrorInvalidFormat;
-    }
-    }
-    return ResultStatus::Error;
+    return GetFileLoader(std::move(file), type, filename_filename, filename);
 }
 
 } // namespace Loader
diff --git a/src/core/loader/loader.h b/src/core/loader/loader.h
index 9d3e9ed3b..77d87afe1 100644
--- a/src/core/loader/loader.h
+++ b/src/core/loader/loader.h
@@ -10,10 +10,8 @@
 #include <string>
 #include <vector>
 
-#include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "common/file_util.h"
-#include "common/swap.h"
 
 namespace Kernel {
 struct AddressMapping;
@@ -80,51 +78,6 @@ constexpr u32 MakeMagic(char a, char b, char c, char d) {
     return a | b << 8 | c << 16 | d << 24;
 }
 
-/// SMDH data structure that contains titles, icons etc. See https://www.3dbrew.org/wiki/SMDH
-struct SMDH {
-    u32_le magic;
-    u16_le version;
-    INSERT_PADDING_BYTES(2);
-
-    struct Title {
-        std::array<u16, 0x40> short_title;
-        std::array<u16, 0x80> long_title;
-        std::array<u16, 0x40> publisher;
-    };
-    std::array<Title, 16> titles;
-
-    std::array<u8, 16> ratings;
-    u32_le region_lockout;
-    u32_le match_maker_id;
-    u64_le match_maker_bit_id;
-    u32_le flags;
-    u16_le eula_version;
-    INSERT_PADDING_BYTES(2);
-    float_le banner_animation_frame;
-    u32_le cec_id;
-    INSERT_PADDING_BYTES(8);
-
-    std::array<u8, 0x480> small_icon;
-    std::array<u8, 0x1200> large_icon;
-
-    /// indicates the language used for each title entry
-    enum class TitleLanguage {
-        Japanese = 0,
-        English = 1,
-        French = 2,
-        German = 3,
-        Italian = 4,
-        Spanish = 5,
-        SimplifiedChinese = 6,
-        Korean= 7,
-        Dutch = 8,
-        Portuguese = 9,
-        Russian = 10,
-        TraditionalChinese = 11
-    };
-};
-static_assert(sizeof(SMDH) == 0x36C0, "SMDH structure size is wrong");
-
 /// Interface for loading an application
 class AppLoader : NonCopyable {
 public:
@@ -132,6 +85,12 @@ public:
     virtual ~AppLoader() { }
 
     /**
+     * Returns the type of this file
+     * @return FileType corresponding to the loaded file
+     */
+    virtual FileType GetFileType() = 0;
+
+    /**
      * Load the application
      * @return ResultStatus result of function
      */
@@ -197,20 +156,10 @@ protected:
 extern const std::initializer_list<Kernel::AddressMapping> default_address_mappings;
 
 /**
- * Get a loader for a file with a specific type
- * @param file The file to load
- * @param type The type of the file
- * @param filename the file name (without path)
- * @param filepath the file full path (with name)
- * @return std::unique_ptr<AppLoader> a pointer to a loader object;  nullptr for unsupported type
- */
-std::unique_ptr<AppLoader> GetLoader(FileUtil::IOFile&& file, FileType type, const std::string& filename, const std::string& filepath);
-
-/**
- * Identifies and loads a bootable file
+ * Identifies a bootable file and return a suitable loader
  * @param filename String filename of bootable file
- * @return ResultStatus result of function
+ * @return best loader for this file
  */
-ResultStatus LoadFile(const std::string& filename);
+std::unique_ptr<AppLoader> GetLoader(const std::string& filename);
 
 } // namespace
diff --git a/src/core/loader/ncch.cpp b/src/core/loader/ncch.cpp
index 7391bdb26..fca091ff9 100644
--- a/src/core/loader/ncch.cpp
+++ b/src/core/loader/ncch.cpp
@@ -10,8 +10,10 @@
 #include "common/string_util.h"
 #include "common/swap.h"
 
+#include "core/file_sys/archive_romfs.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/resource_limit.h"
+#include "core/hle/service/fs/archive.h"
 #include "core/loader/ncch.h"
 #include "core/memory.h"
 
@@ -303,7 +305,12 @@ ResultStatus AppLoader_NCCH::Load() {
 
     is_loaded = true; // Set state to loaded
 
-    return LoadExec(); // Load the executable into memory for booting
+    result = LoadExec(); // Load the executable into memory for booting
+    if (ResultStatus::Success != result)
+        return result;
+
+    Service::FS::RegisterArchiveType(std::make_unique<FileSys::ArchiveFactory_RomFS>(*this), Service::FS::ArchiveIdCode::RomFS);
+    return ResultStatus::Success;
 }
 
 ResultStatus AppLoader_NCCH::ReadCode(std::vector<u8>& buffer) {
diff --git a/src/core/loader/ncch.h b/src/core/loader/ncch.h
index fd852c3de..75609ee57 100644
--- a/src/core/loader/ncch.h
+++ b/src/core/loader/ncch.h
@@ -174,6 +174,14 @@ public:
     static FileType IdentifyType(FileUtil::IOFile& file);
 
     /**
+     * Returns the type of this file
+     * @return FileType corresponding to the loaded file
+     */
+    FileType GetFileType() override {
+        return IdentifyType(file);
+    }
+
+    /**
      * Load the application
      * @return ResultStatus result of function
      */
diff --git a/src/core/loader/smdh.cpp b/src/core/loader/smdh.cpp
new file mode 100644
index 000000000..2d014054a
--- /dev/null
+++ b/src/core/loader/smdh.cpp
@@ -0,0 +1,54 @@
+// 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;
+}
+
+} // namespace
diff --git a/src/core/loader/smdh.h b/src/core/loader/smdh.h
new file mode 100644
index 000000000..2011abda2
--- /dev/null
+++ b/src/core/loader/smdh.h
@@ -0,0 +1,82 @@
+// Copyright 2016 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <vector>
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "common/swap.h"
+
+namespace Loader {
+
+/**
+ * Tests if data is a valid SMDH by its length and magic number.
+ * @param smdh_data data buffer to test
+ * @return bool test result
+ */
+bool IsValidSMDH(const std::vector<u8>& smdh_data);
+
+/// SMDH data structure that contains titles, icons etc. See https://www.3dbrew.org/wiki/SMDH
+struct SMDH {
+    u32_le magic;
+    u16_le version;
+    INSERT_PADDING_BYTES(2);
+
+    struct Title {
+        std::array<u16, 0x40> short_title;
+        std::array<u16, 0x80> long_title;
+        std::array<u16, 0x40> publisher;
+    };
+    std::array<Title, 16> titles;
+
+    std::array<u8, 16> ratings;
+    u32_le region_lockout;
+    u32_le match_maker_id;
+    u64_le match_maker_bit_id;
+    u32_le flags;
+    u16_le eula_version;
+    INSERT_PADDING_BYTES(2);
+    float_le banner_animation_frame;
+    u32_le cec_id;
+    INSERT_PADDING_BYTES(8);
+
+    std::array<u8, 0x480> small_icon;
+    std::array<u8, 0x1200> large_icon;
+
+    /// indicates the language used for each title entry
+    enum class TitleLanguage {
+        Japanese = 0,
+        English = 1,
+        French = 2,
+        German = 3,
+        Italian = 4,
+        Spanish = 5,
+        SimplifiedChinese = 6,
+        Korean= 7,
+        Dutch = 8,
+        Portuguese = 9,
+        Russian = 10,
+        TraditionalChinese = 11
+    };
+
+    /**
+     * Gets game icon from SMDH
+     * @param large If true, returns large icon (48x48), otherwise returns small icon (24x24)
+     * @return vector of RGB565 data
+     */
+    std::vector<u16> GetIcon(bool large) const;
+
+    /**
+     * Gets the short game title from SMDH
+     * @param language title language
+     * @return UTF-16 array of the short title
+     */
+    std::array<u16, 0x40> GetShortTitle(Loader::SMDH::TitleLanguage language) const;
+};
+static_assert(sizeof(SMDH) == 0x36C0, "SMDH structure size is wrong");
+
+} // namespace