Add LoadFromPointer routine

src/app/rom.cc

@@ -52,6 +52,8 @@ void ROM::LoadFromFile(const std::string &path) {
   is_loaded_ = true;
 }
 
+void ROM::LoadFromPointer(uchar *data) { current_rom_ = data; }
+
 uchar *ROM::DecompressGraphics(int pos, int size) {
   return Decompress(pos, size, false);
 }
@@ -152,12 +154,10 @@ uchar *ROM::SNES3bppTo8bppSheet(uchar *buffer_in, int sheet_id, int size) {
     for (int y = 0; y < 8; y++) {
       //[0] + [1] + [16]
       for (int x = 0; x < 8; x++) {
-        auto b1 =
-            (uchar)((buffer_in[(y * 2) + (24 * pos)] & (kGraphicsBitmap[x])));
-        auto b2 = (uchar)(buffer_in[((y * 2) + (24 * pos)) + 1] &
-                          (kGraphicsBitmap[x]));
-        auto b3 =
-            (uchar)(buffer_in[(16 + y) + (24 * pos)] & (kGraphicsBitmap[x]));
+        auto b1 = ((buffer_in[(y * 2) + (24 * pos)] & (kGraphicsBitmap[x])));
+        auto b2 =
+            (buffer_in[((y * 2) + (24 * pos)) + 1] & (kGraphicsBitmap[x]));
+        auto b3 = (buffer_in[(16 + y) + (24 * pos)] & (kGraphicsBitmap[x]));
         unsigned char b = 0;
         if (b1 != 0) {
           b |= 1;

src/app/rom.h

@@ -28,10 +28,12 @@ class ROM {
   void Close();
   void SetupRenderer(std::shared_ptr<SDL_Renderer> renderer);
   void LoadFromFile(const std::string& path);
+  void LoadFromPointer(uchar *data);
 
   uchar* DecompressGraphics(int pos, int size);
   uchar* DecompressOverworld(int pos, int size);
   uchar* Decompress(int pos, int size = 0x800, bool reversed = false);
+
   uchar* SNES3bppTo8bppSheet(uchar* buffer_in, int sheet_id = 0,
                              int size = 0x1000);
   uint GetGraphicsAddress(uint8_t id) const;
@@ -48,10 +50,8 @@ class ROM {
 
  private:
   bool is_loaded_ = false;
-  bool has_header_ = false;
-  long size_ = 0;
   int num_sheets_ = 0;
-  uint compressed_size_;
+  long size_ = 0;
   uchar* current_rom_;
   uchar title[21] = "ROM Not Loaded";
   enum rom_type type_ = LoROM;