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/*/****************************************************************************
* name: SetMGALut** description: Keep the Current LUT, Update it on request and send it to the* RAMDAC.** designed: Bart Simpson, february 11, 1993* last modified: $Author: bleblanc $, $Date: 94/06/20 10:53:50 $** version: $Id: LUT.C 1.14 94/06/20 10:53:50 bleblanc Exp $** parameters: Far BYTE* pDevice, BYTE* pLUT, BYTE PWidth* modifies: -* calls: -* returns: -******************************************************************************/
#include "switches.h"
#include "g3dstd.h"
#include "caddi.h"
#include "def.h"
#include "mga.h"
#include "global.h"
#include "proto.h"
#include "mgai.h"
#ifdef WINDOWS_NT
#if defined(ALLOC_PRAGMA)
#pragma alloc_text(PAGE,SetMGALUT)
#endif
#if defined(ALLOC_PRAGMA)
#pragma data_seg("PAGE")
#endif
#include "video.h"
#endif /* #ifdef WINDOWS_NT */
static BYTE MGALUT[256] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255};
VOID SetMGALUT(volatile BYTE _Far *pDevice, BYTE* pLUT, BYTE PWidth, BYTE ModeType) { DWORD DST0, DST1, Info; WORD i;
if (pLUT != (BYTE*)0) /*** Update Local LUT ***/ { for (i = 0; i < 256; i++) { MGALUT[i] = *(pLUT + i); } }
/*** Get System Configuration ***/
GetMGAConfiguration(pDevice, &DST0, &DST1, &Info);
/*** Send The LUT to the RAMDAC ***/
switch (Info & (DWORD)Info_Dac_M) { case (DWORD)Info_Dac_ATT: break;
case (DWORD)Info_Dac_Sierra: break;
case (DWORD)Info_Dac_BT481: case (DWORD)Info_Dac_BT482:
mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT482_WADR_PAL), 0x00);
for (i = 0; i < 256; i++) /*** This is a 3:3:2 (RGB) LUT ***/ { mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT482_COL_PAL), MGALUT[(((i>>5)&7)*0x2492)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT482_COL_PAL), MGALUT[(((i>>2)&7)*0x2492)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT482_COL_PAL), MGALUT[(i&3)*85]); }
break;
case (DWORD)Info_Dac_BT484: case (DWORD)Info_Dac_BT485: case (DWORD)Info_Dac_PX2085: case (DWORD)Info_Dac_ATT2050:
switch (PWidth) { case (BYTE)(TITAN_PWIDTH_PW8 >> TITAN_PWIDTH_A):
mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_WADR_PAL), 0x00);
for (i = 0; i < 256; i++) /*** This is a 3:3:2 (RGB) LUT ***/ { mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), MGALUT[(((i>>5)&7)*0x2492)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), MGALUT[(((i>>2)&7)*0x2492)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), MGALUT[(i&3)*85]); }
break;
case 15: case (BYTE)(TITAN_PWIDTH_PW16 >> TITAN_PWIDTH_A):
mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_WADR_PAL), 0x00);
if(! (ModeType&0x08)) /*** ! M565 ***/ { for (i = 0; i < 256; i++) /*** This is a 5:5:5 (RGB) LUT contigously indexed ***/ { mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), MGALUT[((i&0x1f)*0x0842)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), MGALUT[((i&0x1f)*0x0842)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), MGALUT[((i&0x1f)*0x0842)>>8]); } } else { for (i = 0; i < 256; i++) /*** This is a 5:6:5 (RGB) LUT contigously indexed ***/ { mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), MGALUT[((i&0x1f)*0x0842)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), MGALUT[((i&0x3f)*0x0410)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), MGALUT[((i&0x1f)*0x0842)>>8]); } }
mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_WADR_PAL), 0x00); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), 0); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), 0); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), 0); break;
case (BYTE)(TITAN_PWIDTH_PW32 >> TITAN_PWIDTH_A):
mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_WADR_PAL), 0x00);
for (i = 0; i < 256; i++) { mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), MGALUT[i]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), MGALUT[i]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), MGALUT[i]); } mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_WADR_PAL), 0x00); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), 0); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), 0); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + BT484_COL_PAL), 0); break; }
break;
case (DWORD)Info_Dac_Chameleon: /*** UNKNOWN ***/ break;
case (DWORD)Info_Dac_TVP3026:
mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_WADR_PAL), 0);
if( (ModeType&0x10)) /*** DB Front-Back ***/ {
for (i = 0; i < 256; i++) /*** This is a 3:3:2 (RGB) LUT ***/ { mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_COL_PAL), MGALUT[(((i>>5)&7)*0x2492)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_COL_PAL), MGALUT[(((i>>2)&7)*0x2492)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_COL_PAL), MGALUT[(i&3)*85]); } } else { switch (PWidth) { case (BYTE)(TITAN_PWIDTH_PW8 >> TITAN_PWIDTH_A): for (i = 0; i < 256; i++) /*** This is a 3:3:2 (RGB) LUT ***/ { mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_COL_PAL), MGALUT[(((i>>5)&7)*0x2492)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_COL_PAL), MGALUT[(((i>>2)&7)*0x2492)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_COL_PAL), MGALUT[(i&3)*85]); } break;
case (BYTE)(TITAN_PWIDTH_PW16 >> TITAN_PWIDTH_A): case (BYTE)(TITAN_PWIDTH_PW24 >> TITAN_PWIDTH_A): case (BYTE)(TITAN_PWIDTH_PW32 >> TITAN_PWIDTH_A): { int err, count; BYTE r, g, b; err = 0; count = 0; do { mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_WADR_PAL), 0); for (i = 0; i < 256; i++) { mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_COL_PAL), MGALUT[i]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_COL_PAL), MGALUT[i]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_COL_PAL), MGALUT[i]); }
mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_RADR_PAL), 0); for (i = 0; i < 256; i++) { mgaReadBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_COL_PAL), r); mgaReadBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_COL_PAL), g); mgaReadBYTE(*(pDevice + RAMDAC_OFFSET + TVP3026_COL_PAL), b); err = err || (r != MGALUT[i]); err = err || (g != MGALUT[i]); err = err || (b != MGALUT[i]); if (err) break; } count++; } while ( err && (count < 5000) ); } break;
} } break;
case (DWORD)Info_Dac_ViewPoint: mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + VPOINT_WADR_PAL), 0x00);
switch (PWidth) { case (BYTE)(TITAN_PWIDTH_PW8 >> TITAN_PWIDTH_A):
for (i = 0; i < 256; i++) /*** This is a 3:3:2 (RGB) LUT ***/ { mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + VPOINT_COL_PAL), MGALUT[(((i>>5)&7)*0x2492)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + VPOINT_COL_PAL), MGALUT[(((i>>2)&7)*0x2492)>>8]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + VPOINT_COL_PAL), MGALUT[(i&3)*85]); }
break;
case 15: case (BYTE)(TITAN_PWIDTH_PW16 >> TITAN_PWIDTH_A):
for (i = 0; i < 256; i++) { mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + VPOINT_COL_PAL), MGALUT[i]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + VPOINT_COL_PAL), MGALUT[i]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + VPOINT_COL_PAL), MGALUT[i]); } break;
case (BYTE)(TITAN_PWIDTH_PW32 >> TITAN_PWIDTH_A):
for (i = 0; i < 256; i++) { mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + VPOINT_COL_PAL), MGALUT[i]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + VPOINT_COL_PAL), MGALUT[i]); mgaWriteBYTE(*(pDevice + RAMDAC_OFFSET + VPOINT_COL_PAL), MGALUT[i]); } break; }
break; } }
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