oldies.c: Add Thomson MOTO functions

src/oldies.h

@@ -19,7 +19,7 @@
 */
 
 ///@file oldies.h
-/// C64 FLI functions
+/// functions relative to old computers (Commodore 64, Thomsons MO/TO, Amstrad CPC, ZX Spectrum, etc.)
 
 /**
  * Save a 3 layer picture to C64 FLI format
@@ -34,3 +34,40 @@ int C64_FLI(byte *bitmap, byte *screen_ram, byte *color_ram, byte *background);
 
 int C64_FLI_enforcer(void);
 
+/**
+ * Add a chunk to a Thomson MO/TO binary file
+ *
+ * @param f open file
+ * @param size size of the memory chunk
+ * @param address load address of the memory chunk
+ * @param data data to add in memory chunk
+ * @return true for success
+ */
+int MOTO_BIN_Add_Chunk(FILE * f, word size, word address, const byte * data);
+
+/**
+ * Add a chunk to a Thomson MO/TO binary file
+ *
+ * @param f open file
+ * @param address run address of the binary file (LOADM,,R)
+ * @return true for success
+ */
+int MOTO_BIN_Add_End(FILE * f, word address);
+
+/**
+ * Checks if the file is a Thomson binary file (SAVEM/LOADM format)
+ *
+ * @param f a file open for reading
+ * @return 0 if this is not a binary file
+ * @return >0 if this is a binary file :
+ * @return 1 no further details found
+ * @return 2 This is likely a MAP file (SAVEP/LOADP format)
+ * @return 3 This is likely a TO autoloading picture
+ * @return 4 This is likely a MO5/MO6 autoloading picture
+ */
+int MOTO_Check_binary_file(FILE * f);
+
+/**
+ * Convert a RGB value to Thomson BGR value with gamma correction.
+ */
+word MOTO_gamma_correct_RGB_to_MOTO(T_Components * color);