source/src/vm/mz2800/crtc.h

   1 /*\r
   2         SHARP MZ-2800 Emulator 'EmuZ-2800'\r
   3 \r
   4         Author : Takeda.Toshiya\r
   5         Date   : 2007.08.13 -\r
   6 \r
   7         [ crtc ]\r
   8 */\r
   9 \r
  10 #ifndef _CRTC_H_\r
  11 #define _CRTC_H_\r
  12 \r
  13 #include "../vm.h"\r
  14 #include "../../emu.h"\r
  15 #include "../device.h"\r
  16 \r
  17 #define SIG_CRTC_COLUMN_SIZE    0\r
  18 #define SIG_CRTC_PALLETE        1\r
  19 #define SIG_CRTC_MASK           2\r
  20 \r
  21 class CRTC : public DEVICE\r
  22 {\r
  23 private:\r
  24         DEVICE *d_pic, *d_pio;\r
  25         \r
  26         // vram\r
  27         uint8 *vram_b, *vram_r, *vram_g, *vram_i;\r
  28         uint8 *tvram;\r
  29         // kanji rom, pcg\r
  30         uint8 *kanji1, *kanji2;\r
  31         uint8 *pcg0, *pcg1, *pcg2, *pcg3;\r
  32         \r
  33         // crtc\r
  34         void set_hsync(int h);\r
  35         uint8 textreg_num, textreg[16];\r
  36         uint8 rmwreg_num[2], rmwreg[2][32];\r
  37         uint8 cgreg_num, cgreg[32];\r
  38         uint8 scrn_size, cg_mask;\r
  39         bool font_size, column_size;\r
  40         uint8 latch[2][4];\r
  41         uint16 GDEVS, GDEVE;\r
  42         uint8 GDEHS, GDEHE;\r
  43         int GDEHSC, GDEHEC;\r
  44         bool blank, hblank, vblank, blink;\r
  45         uint8 clear_flag;\r
  46         uint8 palette_reg[16];\r
  47         bool pal_select;\r
  48         bool screen_mask;\r
  49         \r
  50         // priority and palette\r
  51         uint8 priority16[16][9];\r
  52         scrntype palette16[16+8], palette4096[16];\r
  53         uint8 palette4096r[16], palette4096g[16], palette4096b[16];\r
  54         scrntype palette16txt[9], palette4096txt[9];\r
  55         scrntype palette16pri[16][9], palette4096pri[16][9];\r
  56         scrntype palette65536[0x10000]; // BRGI\r
  57         uint8 prev16;\r
  58         bool update16;\r
  59         \r
  60         // draw text\r
  61         void draw_text();\r
  62         void draw_80column_screen();\r
  63         void draw_40column_screen();\r
  64         void draw_80column_font(uint16 src, int dest, int y);\r
  65         void draw_40column_font(uint16 src, int dest, int y);\r
  66         uint8 text[640*480*2];\r
  67         \r
  68         // draw cg\r
  69         void draw_cg();\r
  70         uint16 cg[640*400*2];\r
  71         uint32 map_addr[400][80];\r
  72         uint8 map_hdsc[400][80];\r
  73         \r
  74         // speed optimize\r
  75         uint8 cg_matrix0[256][256][8];\r
  76         uint8 cg_matrix1[256][256][8];\r
  77         uint8 cg_matrix2[256][256][8];\r
  78         uint8 cg_matrix3[256][256][8];\r
  79         uint8 text_matrix[256][8][8];\r
  80         uint8 text_matrixw[256][8][16];\r
  81         uint8 trans_color;\r
  82         bool map_init, trans_init;\r
  83         \r
  84 public:\r
  85         CRTC(VM* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu) {}\r
  86         ~CRTC() {}\r
  87         \r
  88         // common functions\r
  89         void initialize();\r
  90         void write_data8(uint32 addr, uint32 data);\r
  91         uint32 read_data8(uint32 addr);\r
  92         void write_io8(uint32 addr, uint32 data);\r
  93         void write_signal(int id, uint32 data, uint32 mask);\r
  94         void event_callback(int event_id, int err);\r
  95         void event_vline(int v, int clock);\r
  96         \r
  97         // unique function\r
  98         void set_context_pic(DEVICE* device)\r
  99         {\r
 100                 d_pic = device;\r
 101         }\r
 102         void set_context_pio(DEVICE* device)\r
 103         {\r
 104                 d_pio = device;\r
 105         }\r
 106         void set_vram_ptr(uint8* ptr)\r
 107         {\r
 108                 vram_b = ptr + 0x00000;\r
 109                 vram_r = ptr + 0x20000;\r
 110                 vram_g = ptr + 0x40000;\r
 111                 vram_i = ptr + 0x60000;\r
 112         }\r
 113         void set_tvram_ptr(uint8* ptr)\r
 114         {\r
 115                 tvram = ptr;\r
 116         }\r
 117         void set_kanji_ptr(uint8* ptr)\r
 118         {\r
 119                 kanji1 = ptr + 0x00000;\r
 120                 kanji2 = ptr + 0x40000;\r
 121         }\r
 122         void set_pcg_ptr(uint8* ptr)\r
 123         {\r
 124                 pcg0 = ptr + 0x0000;\r
 125                 pcg1 = ptr + 0x1000;\r
 126                 pcg2 = ptr + 0x2000;\r
 127                 pcg3 = ptr + 0x3000;\r
 128         }\r
 129         void draw_screen();\r
 130 };\r
 131 \r
 132 #endif\r
 133 \r