git.sesse.net Git - pistorm/blob - platforms/amiga/rtg/rtg_enums.h

   1 // SPDX-License-Identifier: MIT
   2
   3 // "Register" offsets for sending data to the RTG.
   4 enum pi_regs {
   5   RTG_COMMAND   = 0x00,
   6   RTG_X1        = 0x02,
   7   RTG_X2        = 0x04,
   8   RTG_X3        = 0x06,
   9   RTG_Y1        = 0x08,
  10   RTG_Y2        = 0x0A,
  11   RTG_Y3        = 0x0C,
  12   RTG_FORMAT    = 0x0E,
  13   RTG_RGB1      = 0x10,
  14   RTG_RGB2      = 0x14,
  15   RTG_ADDR1     = 0x18,
  16   RTG_ADDR2     = 0x1C,
  17   RTG_U81       = 0x20,
  18   RTG_U82       = 0x21,
  19   RTG_U83       = 0x22,
  20   RTG_U84       = 0x23,
  21   RTG_X4        = 0x24,
  22   RTG_X5        = 0x26,
  23   RTG_Y4        = 0x28,
  24   RTG_Y5        = 0x2A,
  25   RTG_U1        = 0x2C,
  26   RTG_U2        = 0x2E,
  27   RTG_ADDR3     = 0x30,
  28   RTG_ADDR4     = 0x34,
  29   RTG_DEBUGME   = 0x50,
  30   IRTG_COMMAND  = 0x60,
  31 };
  32
  33 enum rtg_cmds {
  34   RTGCMD_SETGC,
  35   RTGCMD_SETPAN,
  36   RTGCMD_SETCLUT,
  37   RTGCMD_ENABLE,
  38   RTGCMD_SETDISPLAY,
  39   RTGCMD_SETSWITCH,
  40   RTGCMD_FILLRECT,
  41   RTGCMD_BLITRECT,
  42   RTGCMD_BLITRECT_NOMASK_COMPLETE,
  43   RTGCMD_BLITPATTERN,
  44   RTGCMD_BLITTEMPLATE,
  45   RTGCMD_INVERTRECT,
  46   RTGCMD_DRAWLINE,
  47   RTGCMD_P2C,
  48   RTGCMD_P2D,
  49   RTGCMD_SETSPRITE,
  50   RTGCMD_SETSPRITEPOS,
  51   RTGCMD_SETSPRITECOLOR,
  52   RTGCMD_SETSPRITEIMAGE,
  53   RTGCMD_DEBUGME,
  54 };
  55
  56 enum rtg_formats {
  57   RTGFMT_8BIT,
  58   RTGFMT_RBG565,
  59   RTGFMT_RGB32,
  60   RTGFMT_RGB555,
  61   RTGFMT_NUM,
  62 };
  63
  64 enum gfx_minterm_modes {
  65         MINTERM_FALSE,
  66         MINTERM_NOR,
  67         MINTERM_ONLYDST,
  68         MINTERM_NOTSRC,
  69         MINTERM_ONLYSRC,
  70         MINTERM_INVERT,
  71         MINTERM_EOR,
  72         MINTERM_NAND,
  73         MINTERM_AND,
  74         MINTERM_NEOR,
  75         MINTERM_DST,
  76         MINTERM_NOTONLYSRC,
  77         MINTERM_SRC,
  78         MINTERM_NOTONLYDST,
  79         MINTERM_OR,
  80         MINTERM_TRUE,
  81 };
  82
  83 enum gfx_draw_modes {
  84     DRAWMODE_JAM1 = 0,
  85     DRAWMODE_JAM2 = 1,
  86     DRAWMODE_COMPLEMENT = 2,
  87     DRAWMODE_INVERSVID = 4,
  88 };
  89
  90 static const unsigned short rgbf_to_rtg[16] = {
  91   RTGFMT_8BIT,      // 0x00
  92   RTGFMT_8BIT,      // 0x01
  93   0,                // 0x02
  94   0,                // 0x03
  95   0,                // 0x04
  96   RTGFMT_RGB555,    // 0x05
  97   0,                // 0x06
  98   0,                // 0x07
  99   RTGFMT_RGB32,     // 0x08
 100   RTGFMT_RGB32,     // 0x09
 101   RTGFMT_RBG565,    // 0x0A
 102   RTGFMT_RGB555,    // 0x0B
 103   0,                // 0x0C
 104   RTGFMT_RGB555,    // 0x0D
 105   0,                // 0x0E
 106   0,                // 0x0F
 107 };