source/src/vm/jx/display.h

   1 /*
   2         IBM Japan Ltd PC/JX Emulator 'eJX'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2011.05.09-
   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_ENABLE      0
  18 #define SIG_DISPLAY_VBLANK      1
  19 #define SIG_DISPLAY_PIO         2
  20
  21 class MEMORY;
  22
  23 class DISPLAY : public DEVICE
  24 {
  25 private:
  26         MEMORY *d_mem;
  27
  28         uint8_t vram[0x20000];
  29         uint8_t extvram[0x10000];
  30
  31         uint8_t vgarray[0x10];
  32         uint8_t palette[0x10];
  33         int vgarray_num;
  34
  35         uint8_t bankreg[16];
  36         int bankreg_num;
  37
  38         uint8_t hires_mode;
  39 //      int prev_width, prev_height;
  40         uint8_t page;
  41         uint8_t status;
  42         uint8_t* regs;
  43
  44         uint8_t screen[512][720];
  45         uint8_t *font;
  46         uint8_t *kanji;
  47         scrntype_t palette_pc[32];
  48         int cblink;
  49
  50         void draw_alpha();
  51         void draw_graph_160x200_16col();
  52         void draw_graph_320x200_4col();
  53         void draw_graph_320x200_16col();
  54         void draw_graph_640x200_2col();
  55         void draw_graph_640x200_4col();
  56         void draw_graph_720x512_2col();
  57         void draw_graph_360x512_4col();
  58
  59 public:
  60         DISPLAY(VM_TEMPLATE* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu)
  61         {
  62                 set_device_name(_T("Display"));
  63         }
  64         ~DISPLAY() {}
  65
  66         // common functions
  67         void initialize();
  68         void reset();
  69         void write_io8(uint32_t addr, uint32_t data);
  70         uint32_t read_io8(uint32_t addr);
  71         void write_signal(int id, uint32_t data, uint32_t mask);
  72         void event_frame();
  73         bool process_state(FILEIO* state_fio, bool loading);
  74
  75         // unique functions
  76         void set_context_mem(MEMORY* device)
  77         {
  78                 d_mem = device;
  79         }
  80         void set_regs_ptr(uint8_t* ptr)
  81         {
  82                 regs = ptr;
  83         }
  84         void set_font_ptr(uint8_t* ptr)
  85         {
  86                 font = ptr;
  87         }
  88         void set_kanji_ptr(uint8_t* ptr)
  89         {
  90                 kanji = ptr;
  91         }
  92         void draw_screen();
  93 };
  94
  95 #endif
  96