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 namespace JX {
  24
  25 class DISPLAY : public DEVICE
  26 {
  27 private:
  28         MEMORY *d_mem;
  29
  30         uint8_t vram[0x20000];
  31         uint8_t extvram[0x10000];
  32
  33         uint8_t vgarray[0x10];
  34         uint8_t palette[0x10];
  35         int vgarray_num;
  36
  37         uint8_t bankreg[16];
  38         int bankreg_num;
  39
  40         uint8_t hires_mode;
  41 //      int prev_width, prev_height;
  42         uint8_t page;
  43         uint8_t status;
  44         uint8_t* regs;
  45
  46         uint8_t screen[512][720];
  47         uint8_t *font;
  48         uint8_t *kanji;
  49         scrntype_t palette_pc[32];
  50         int cblink;
  51
  52         void draw_alpha();
  53         void draw_graph_160x200_16col();
  54         void draw_graph_320x200_4col();
  55         void draw_graph_320x200_16col();
  56         void draw_graph_640x200_2col();
  57         void draw_graph_640x200_4col();
  58         void draw_graph_720x512_2col();
  59         void draw_graph_360x512_4col();
  60
  61 public:
  62         DISPLAY(VM_TEMPLATE* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu)
  63         {
  64                 set_device_name(_T("Display"));
  65         }
  66         ~DISPLAY() {}
  67
  68         // common functions
  69         void initialize();
  70         void reset();
  71         void write_io8(uint32_t addr, uint32_t data);
  72         uint32_t read_io8(uint32_t addr);
  73         void write_signal(int id, uint32_t data, uint32_t mask);
  74         void event_frame();
  75         bool process_state(FILEIO* state_fio, bool loading);
  76
  77         // unique functions
  78         void set_context_mem(MEMORY* device)
  79         {
  80                 d_mem = device;
  81         }
  82         void set_regs_ptr(uint8_t* ptr)
  83         {
  84                 regs = ptr;
  85         }
  86         void set_font_ptr(uint8_t* ptr)
  87         {
  88                 font = ptr;
  89         }
  90         void set_kanji_ptr(uint8_t* ptr)
  91         {
  92                 kanji = ptr;
  93         }
  94         void draw_screen();
  95 };
  96
  97 }
  98 #endif
  99