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