3 files changed, 136 insertions, 47 deletions

diff --git a/src/core/loader/loader.h b/src/core/loader/loader.h
index 39aedfeeb..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:
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