source/src/vm/multi8/display.h

   1 /*
   2         MITSUBISHI Electric MULTI8 Emulator 'EmuLTI8'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2007.02.08 -
   6
   7         [ display ]
   8 */
   9
  10 #ifndef _DISPLAY_H_
  11 #define _DISPLAY_H_
  12
  13 #include "../vm.h"
  14 #include "../../emu.h"
  15 #include "../device.h"
  16
  17 #define SIG_DISPLAY_I8255_B     0
  18
  19 class DISPLAY : public DEVICE
  20 {
  21 private:
  22         uint8_t* regs;
  23         uint8_t pal[8];
  24         bool text_wide, text_color;
  25         uint8_t graph_color, graph_page;
  26         uint16_t cursor, cblink;
  27         bool hsync, vsync, display, blink;
  28
  29         uint8_t screen[200][640];
  30         uint8_t font[0x800];
  31         uint8_t* vram_b;
  32         uint8_t* vram_r;
  33         uint8_t* vram_g;
  34         uint8_t* vram_t;
  35         uint8_t* vram_a;
  36         scrntype_t palette_pc[8];
  37
  38         void draw_graph_color();
  39         void draw_graph_mono();
  40         void draw_text_wide();
  41         void draw_text_normal();
  42
  43 public:
  44         DISPLAY(VM* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu) {}
  45         ~DISPLAY() {}
  46
  47         // common functions
  48         void initialize();
  49         void write_io8(uint32_t addr, uint32_t data);
  50         uint32_t read_io8(uint32_t addr);
  51         void write_signal(int id, uint32_t data, uint32_t mask);
  52         void event_frame();
  53         void save_state(FILEIO* state_fio);
  54         bool load_state(FILEIO* state_fio);
  55
  56         // unique functions
  57         void set_vram_ptr(uint8_t* ptr)
  58         {
  59                 vram_b = ptr + 0x0000;
  60                 vram_r = ptr + 0x4000;
  61                 vram_g = ptr + 0x8000;
  62                 vram_t = ptr + 0xc000;
  63                 vram_a = ptr + 0xc800;
  64         }
  65         void set_regs_ptr(uint8_t* ptr)
  66         {
  67                 regs = ptr;
  68         }
  69         void draw_screen();
  70 };
  71
  72 #endif
  73