ref: d7ad068d56bdec30805a36a9973f5924ad00641b
dir: /src/VIDEMDEV.c/
/*
VIDEMDEV.c
Copyright (C) 2008 Paul C. Pratt
You can redistribute this file and/or modify it under the terms
of version 2 of the GNU General Public License as published by
the Free Software Foundation. You should have received a copy
of the license along with this file; see the file COPYING.
This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
license for more details.
*/
/*
VIDeo card EMulated DEVice
Emulation of video card for Macintosh II.
Written referring to:
Sample firmware code in "Designing Cards and Drivers
for Macintosh II and Macintosh SE", Apple Computer,
page 8-20.
Basilisk II source code, especially slot_rom.cpp
*/
#ifndef AllFiles
#include "SYSDEPNS.h"
#include "MYOSGLUE.h"
#include "ENDIANAC.h"
#include "EMCONFIG.h"
#include "GLOBGLUE.h"
#include "MINEM68K.h"
#include "SONYEMDV.h"
#endif
#include "VIDEMDEV.h"
/*
ReportAbnormalID unused 0x0A08 - 0x0AFF
*/
#define VID_dolog (dbglog_HAVE && 0)
LOCALVAR const ui3b VidDrvr_contents[] = {
0x4C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x2A, 0x00, 0x00, 0x00, 0xE2, 0x00, 0xEC,
0x00, 0xB6, 0x15, 0x2E, 0x44, 0x69, 0x73, 0x70,
0x6C, 0x61, 0x79, 0x5F, 0x56, 0x69, 0x64, 0x65,
0x6F, 0x5F, 0x53, 0x61, 0x6D, 0x70, 0x6C, 0x65,
0x00, 0x00, 0x24, 0x48, 0x26, 0x49, 0x70, 0x04,
0xA4, 0x40, 0x70, 0x04, 0xA7, 0x22, 0x66, 0x00,
0x00, 0x50, 0x27, 0x48, 0x00, 0x14, 0xA0, 0x29,
0x49, 0xFA, 0x00, 0x4A, 0x70, 0x10, 0xA7, 0x1E,
0x66, 0x00, 0x00, 0x3E, 0x31, 0x7C, 0x00, 0x06,
0x00, 0x04, 0x21, 0x4C, 0x00, 0x08, 0x21, 0x4B,
0x00, 0x0C, 0x70, 0x00, 0x10, 0x2B, 0x00, 0x28,
0xA0, 0x75, 0x66, 0x24, 0x22, 0x6B, 0x00, 0x14,
0x22, 0x51, 0x22, 0x88, 0x3F, 0x3C, 0x00, 0x01,
0x55, 0x4F, 0x3F, 0x3C, 0x00, 0x03, 0x41, 0xFA,
0x00, 0x9C, 0x2F, 0x18, 0x20, 0x50, 0x20, 0x8F,
0xDE, 0xFC, 0x00, 0x0A, 0x70, 0x00, 0x60, 0x02,
0x70, 0xE9, 0x4E, 0x75, 0x2F, 0x08, 0x55, 0x4F,
0x3F, 0x3C, 0x00, 0x04, 0x41, 0xFA, 0x00, 0x7E,
0x2F, 0x18, 0x20, 0x50, 0x20, 0x8F, 0x50, 0x4F,
0x20, 0x29, 0x00, 0x2A, 0xE1, 0x98, 0x02, 0x40,
0x00, 0x0F, 0x20, 0x78, 0x0D, 0x28, 0x4E, 0x90,
0x20, 0x5F, 0x70, 0x01, 0x4E, 0x75, 0x2F, 0x0B,
0x26, 0x69, 0x00, 0x14, 0x42, 0x67, 0x55, 0x4F,
0x3F, 0x3C, 0x00, 0x03, 0x41, 0xFA, 0x00, 0x4E,
0x2F, 0x18, 0x20, 0x50, 0x20, 0x8F, 0xDE, 0xFC,
0x00, 0x0A, 0x20, 0x53, 0x20, 0x50, 0xA0, 0x76,
0x20, 0x4B, 0xA0, 0x23, 0x70, 0x00, 0x26, 0x5F,
0x4E, 0x75, 0x2F, 0x08, 0x55, 0x4F, 0x3F, 0x3C,
0x00, 0x06, 0x60, 0x08, 0x2F, 0x08, 0x55, 0x4F,
0x3F, 0x3C, 0x00, 0x05, 0x41, 0xFA, 0x00, 0x1E,
0x2F, 0x18, 0x20, 0x50, 0x20, 0x8F, 0x5C, 0x4F,
0x30, 0x1F, 0x20, 0x5F, 0x08, 0x28, 0x00, 0x09,
0x00, 0x06, 0x67, 0x02, 0x4E, 0x75, 0x20, 0x78,
0x08, 0xFC, 0x4E, 0xD0
};
LOCALPROC ChecksumSlotROM(void)
{
/* Calculate CRC */
/* assuming check sum field initialized to zero */
int i;
ui3p p = VidROM;
ui5b crc = 0;
for (i = kVidROM_Size; --i >= 0; ) {
crc = ((crc << 1) | (crc >> 31)) + *p++;
}
do_put_mem_long(p - 12, crc);
}
LOCALVAR ui3p pPatch;
LOCALPROC PatchAByte(ui3b v)
{
*pPatch++ = v;
}
LOCALPROC PatchAWord(ui4r v)
{
PatchAByte(v >> 8);
PatchAByte(v & 0x00FF);
}
LOCALPROC PatchALong(ui5r v)
{
PatchAWord(v >> 16);
PatchAWord(v & 0x0000FFFF);
}
#if 0
LOCALPROC PatchAOSLstEntry0(ui3r Id, ui5r Offset)
{
PatchALong((Id << 24) | (Offset & 0x00FFFFFF));
}
#endif
LOCALPROC PatchAOSLstEntry(ui3r Id, ui3p Offset)
{
PatchALong((Id << 24) | ((Offset - pPatch) & 0x00FFFFFF));
}
LOCALFUNC ui3p ReservePatchOSLstEntry(void)
{
ui3p v = pPatch;
pPatch += 4;
return v;
}
LOCALPROC PatchAReservedOSLstEntry(ui3p p, ui3r Id)
{
ui3p pPatchSave = pPatch;
pPatch = p;
PatchAOSLstEntry(Id, pPatchSave);
pPatch = pPatchSave;
}
LOCALPROC PatchADatLstEntry(ui3r Id, ui5r Data)
{
PatchALong((Id << 24) | (Data & 0x00FFFFFF));
}
LOCALPROC PatchAnEndOfLst(void)
{
PatchADatLstEntry(0xFF /* endOfList */, 0x00000000);
}
GLOBALFUNC blnr Vid_Init(void)
{
int i;
ui5r UsedSoFar;
ui3p pAt_sRsrcDir;
ui3p pTo_sRsrc_Board;
ui3p pTo_BoardType;
ui3p pTo_BoardName;
ui3p pTo_VenderInfo;
ui3p pTo_VendorID;
ui3p pTo_RevLevel;
ui3p pTo_PartNum;
ui3p pTo_sRsrc_Video;
ui3p pTo_VideoType;
ui3p pTo_VideoName;
ui3p pTo_MinorBase;
ui3p pTo_MinorLength;
#if 0
ui3p pTo_MajorBase;
ui3p pTo_MajorLength;
#endif
ui3p pTo_VidDrvrDir;
ui3p pTo_sMacOS68020;
ui3p pTo_OneBitMode;
ui3p pTo_OneVidParams;
#if 0 != vMacScreenDepth
ui3p pTo_ColorBitMode = nullpr;
ui3p pTo_ColorVidParams;
#endif
pPatch = VidROM;
pAt_sRsrcDir = pPatch;
pTo_sRsrc_Board = ReservePatchOSLstEntry();
pTo_sRsrc_Video = ReservePatchOSLstEntry();
PatchAnEndOfLst();
PatchAReservedOSLstEntry(pTo_sRsrc_Board, 0x01 /* sRsrc_Board */);
pTo_BoardType = ReservePatchOSLstEntry();
pTo_BoardName = ReservePatchOSLstEntry();
PatchADatLstEntry(0x20 /* BoardId */, 0x0000764D);
/* 'vM', for Mini vMac */
pTo_VenderInfo = ReservePatchOSLstEntry();
PatchAnEndOfLst();
PatchAReservedOSLstEntry(pTo_BoardType, 0x01 /* sRsrcType */);
PatchAWord(0x0001);
PatchAWord(0x0000);
PatchAWord(0x0000);
PatchAWord(0x0000);
PatchAReservedOSLstEntry(pTo_BoardName, 0x02 /* sRsrcName */);
/*
'Mini vMac video card' as ascii c string
(null terminated), and
zero padded to end aligned long.
*/
PatchALong(0x4D696E69);
PatchALong(0x20764D61);
PatchALong(0x63207669);
PatchALong(0x64656F20);
PatchALong(0x63617264);
PatchALong(0x00000000);
PatchAReservedOSLstEntry(pTo_VenderInfo, 0x24 /* vendorInfo */);
pTo_VendorID = ReservePatchOSLstEntry();
pTo_RevLevel = ReservePatchOSLstEntry();
pTo_PartNum = ReservePatchOSLstEntry();
PatchAnEndOfLst();
PatchAReservedOSLstEntry(pTo_VendorID, 0x01 /* vendorId */);
/*
'Paul C. Pratt' as ascii c string
(null terminated), and
zero padded to end aligned long.
*/
PatchALong(0x5061756C);
PatchALong(0x20432E20);
PatchALong(0x50726174);
PatchALong(0x74000000);
PatchAReservedOSLstEntry(pTo_RevLevel, 0x03 /* revLevel */);
/*
'1.0' as ascii c string
(null terminated), and
zero padded to end aligned long.
*/
PatchALong(0x312E3000);
PatchAReservedOSLstEntry(pTo_PartNum, 0x04 /* partNum */);
/*
'TFB-1' as ascii c string
(null terminated), and
zero padded to end aligned long.
*/
PatchALong(0x5446422D);
PatchALong(0x31000000);
PatchAReservedOSLstEntry(pTo_sRsrc_Video, 0x80 /* sRsrc_Video */);
pTo_VideoType = ReservePatchOSLstEntry();
pTo_VideoName = ReservePatchOSLstEntry();
pTo_VidDrvrDir = ReservePatchOSLstEntry();
PatchADatLstEntry(0x08 /* sRsrcHWDevId */, 0x00000001);
pTo_MinorBase = ReservePatchOSLstEntry();
pTo_MinorLength = ReservePatchOSLstEntry();
#if 0
pTo_MajorBase = ReservePatchOSLstEntry();
pTo_MajorLength = ReservePatchOSLstEntry();
#endif
pTo_OneBitMode = ReservePatchOSLstEntry();
#if 0 != vMacScreenDepth
if (ColorModeWorks) {
pTo_ColorBitMode = ReservePatchOSLstEntry();
}
#endif
PatchAnEndOfLst();
PatchAReservedOSLstEntry(pTo_VideoType, 0x01 /* sRsrcType */);
PatchAWord(0x0003); /* catDisplay */
PatchAWord(0x0001); /* typVideo */
PatchAWord(0x0001); /* drSwApple */
PatchAWord(0x0001); /* drHwTFB */
PatchAReservedOSLstEntry(pTo_VideoName, 0x02 /* sRsrcName */);
/*
'Display_Video_Apple_TFB' as ascii c string
(null terminated), and
zero padded to end aligned long.
*/
PatchALong(0x44697370);
PatchALong(0x6C61795F);
PatchALong(0x56696465);
PatchALong(0x6F5F4170);
PatchALong(0x706C655F);
PatchALong(0x54464200);
PatchAReservedOSLstEntry(pTo_MinorBase, 0x0A /* MinorBaseOS */);
PatchALong(0x00000000);
PatchAReservedOSLstEntry(pTo_MinorLength, 0x0B /* MinorLength */);
PatchALong(kVidMemRAM_Size);
#if 0
PatchAReservedOSLstEntry(pTo_MajorBase, 0x0C /* MinorBaseOS */);
PatchALong(0x00000000);
PatchAReservedOSLstEntry(pTo_MajorLength, 0x0D /* MinorLength */);
PatchALong(kVidMemRAM_Size);
#endif
PatchAReservedOSLstEntry(pTo_VidDrvrDir, 0x04 /* sRsrcDrvrDir */);
pTo_sMacOS68020 = ReservePatchOSLstEntry();
PatchAnEndOfLst();
PatchAReservedOSLstEntry(pTo_sMacOS68020, 0x02 /* sMacOS68020 */);
PatchALong(4 + sizeof(VidDrvr_contents) + 8);
MyMoveBytes((ui3p)VidDrvr_contents,
pPatch, sizeof(VidDrvr_contents));
pPatch += sizeof(VidDrvr_contents);
PatchAWord(kcom_callcheck);
PatchAWord(kExtnVideo);
PatchALong(kExtn_Block_Base);
PatchAReservedOSLstEntry(pTo_OneBitMode, 0x80 /* oneBitMode */);
pTo_OneVidParams = ReservePatchOSLstEntry();
PatchADatLstEntry(0x03 /* mVidParams */, 0x00000001);
PatchADatLstEntry(0x04 /* mDevType */, 0x00000000);
PatchAnEndOfLst();
PatchAReservedOSLstEntry(pTo_OneVidParams, 0x01 /* mVidParams */);
PatchALong(0x0000002E); /* physical Block Size */
PatchALong(0x00000000); /* defmBaseOffset */
PatchAWord(vMacScreenWidth / 8);
/* (Bounds.R-Bounds.L)*PixelSize/8 */
PatchAWord(0x0000); /* Bounds.T */
PatchAWord(0x0000); /* Bounds.L */
PatchAWord(vMacScreenHeight); /* Bounds.B */
PatchAWord(vMacScreenWidth); /* Bounds.R */
PatchAWord(0x0000); /* bmVersion */
PatchAWord(0x0000); /* packType not used */
PatchALong(0x00000000); /* packSize not used */
PatchALong(0x00480000); /* bmHRes */
PatchALong(0x00480000); /* bmVRes */
PatchAWord(0x0000); /* bmPixelType */
PatchAWord(0x0001); /* bmPixelSize */
PatchAWord(0x0001); /* bmCmpCount */
PatchAWord(0x0001); /* bmCmpSize */
PatchALong(0x00000000); /* bmPlaneBytes */
#if 0 != vMacScreenDepth
if (ColorModeWorks) {
PatchAReservedOSLstEntry(pTo_ColorBitMode, 0x81);
pTo_ColorVidParams = ReservePatchOSLstEntry();
PatchADatLstEntry(0x03 /* mVidParams */, 0x00000001);
PatchADatLstEntry(0x04 /* mDevType */,
(vMacScreenDepth < 4) ? 0x00000000 : 0x00000002);
/* 2 for direct devices, according to Basilisk II */
PatchAnEndOfLst();
PatchAReservedOSLstEntry(pTo_ColorVidParams, 0x01);
PatchALong(0x0000002E); /* physical Block Size */
PatchALong(0x00000000); /* defmBaseOffset */
PatchAWord(vMacScreenByteWidth);
PatchAWord(0x0000); /* Bounds.T */
PatchAWord(0x0000); /* Bounds.L */
PatchAWord(vMacScreenHeight); /* Bounds.B */
PatchAWord(vMacScreenWidth); /* Bounds.R */
PatchAWord(0x0000); /* bmVersion */
PatchAWord(0x0000); /* packType not used */
PatchALong(0x00000000); /* packSize not used */
PatchALong(0x00480000); /* bmHRes */
PatchALong(0x00480000); /* bmVRes */
PatchAWord((vMacScreenDepth < 4) ? 0x0000 : 0x0010);
/* bmPixelType */
PatchAWord(1 << vMacScreenDepth); /* bmPixelSize */
PatchAWord((vMacScreenDepth < 4) ? 0x0001 : 0x0003);
/* bmCmpCount */
#if 4 == vMacScreenDepth
PatchAWord(0x0005); /* bmCmpSize */
#elif 5 == vMacScreenDepth
PatchAWord(0x0008); /* bmCmpSize */
#else
PatchAWord(1 << vMacScreenDepth); /* bmCmpSize */
#endif
PatchALong(0x00000000); /* bmPlaneBytes */
}
#endif
UsedSoFar = (pPatch - VidROM) + 20;
if (UsedSoFar > kVidROM_Size) {
ReportAbnormalID(0x0A01, "kVidROM_Size to small");
return falseblnr;
}
for (i = kVidROM_Size - UsedSoFar; --i >= 0; ) {
PatchAByte(0);
}
pPatch = (kVidROM_Size - 20) + VidROM;
PatchALong((pAt_sRsrcDir - pPatch) & 0x00FFFFFF);
PatchALong(/* 0x0000041E */ kVidROM_Size);
PatchALong(0x00000000);
PatchAByte(0x01);
PatchAByte(0x01);
PatchALong(0x5A932BC7);
PatchAByte(0x00);
PatchAByte(0x0F);
ChecksumSlotROM();
#if (0 != vMacScreenDepth) && (vMacScreenDepth < 4)
CLUT_reds[0] = 0xFFFF;
CLUT_greens[0] = 0xFFFF;
CLUT_blues[0] = 0xFFFF;
CLUT_reds[CLUT_size - 1] = 0;
CLUT_greens[CLUT_size - 1] = 0;
CLUT_blues[CLUT_size - 1] = 0;
#endif
return trueblnr;
}
IMPORTPROC Vid_VBLinterrupt_PulseNotify(void);
GLOBALPROC Vid_Update(void)
{
if (! Vid_VBLintunenbl) {
Vid_VBLinterrupt = 0;
Vid_VBLinterrupt_PulseNotify();
}
}
LOCALFUNC ui4r Vid_GetMode(void)
{
return
#if 0 != vMacScreenDepth
UseColorMode ? 129 :
#endif
128;
}
LOCALFUNC tMacErr Vid_SetMode(ui4r v)
{
#if 0 == vMacScreenDepth
UnusedParam(v);
#else
if (UseColorMode != ((v != 128) && ColorModeWorks)) {
UseColorMode = ! UseColorMode;
ColorMappingChanged = trueblnr;
}
#endif
return mnvm_noErr;
}
GLOBALFUNC ui4r Vid_Reset(void)
{
#if 0 != vMacScreenDepth
UseColorMode = falseblnr;
#endif
return 128;
}
#define kCmndVideoFeatures 1
#define kCmndVideoGetIntEnbl 2
#define kCmndVideoSetIntEnbl 3
#define kCmndVideoClearInt 4
#define kCmndVideoStatus 5
#define kCmndVideoControl 6
#define CntrlParam_csCode 0x1A /* control/status code [word] */
#define CntrlParam_csParam 0x1C /* operation-defined parameters */
#define VDPageInfo_csMode 0
#define VDPageInfo_csData 2
#define VDPageInfo_csPage 6
#define VDPageInfo_csBaseAddr 8
#define VDSetEntryRecord_csTable 0
#define VDSetEntryRecord_csStart 4
#define VDSetEntryRecord_csCount 6
#define VDGammaRecord_csGTable 0
#define VidBaseAddr 0xF9900000
/* appears to be completely ignored */
LOCALVAR blnr UseGrayTones = falseblnr;
LOCALPROC FillScreenWithGrayPattern(void)
{
int i;
int j;
ui5b *p1 = (ui5b *)VidMem;
#if 0 != vMacScreenDepth
if (UseColorMode) {
#if 1 == vMacScreenDepth
ui5b pat = 0xCCCCCCCC;
#elif 2 == vMacScreenDepth
ui5b pat = 0xF0F0F0F0;
#elif 3 == vMacScreenDepth
ui5b pat = 0xFF00FF00;
#elif 4 == vMacScreenDepth
ui5b pat = 0x00007FFF;
#elif 5 == vMacScreenDepth
ui5b pat = 0x00000000;
#endif
for (i = vMacScreenHeight; --i >= 0; ) {
for (j = vMacScreenByteWidth >> 2; --j >= 0; ) {
*p1++ = pat;
#if 5 == vMacScreenDepth
pat = (~ pat) & 0x00FFFFFF;
#endif
}
pat = (~ pat)
#if 4 == vMacScreenDepth
& 0x7FFF7FFF
#elif 5 == vMacScreenDepth
& 0x00FFFFFF
#endif
;
}
} else
#endif
{
ui5b pat = 0xAAAAAAAA;
for (i = vMacScreenHeight; --i >= 0; ) {
for (j = vMacScreenMonoByteWidth >> 2; --j >= 0; ) {
*p1++ = pat;
}
pat = ~ pat;
}
}
}
GLOBALPROC ExtnVideo_Access(CPTR p)
{
tMacErr result = mnvm_controlErr;
switch (get_vm_word(p + ExtnDat_commnd)) {
case kCmndVersion:
#if VID_dolog
dbglog_WriteNote("Video_Access kCmndVersion");
#endif
put_vm_word(p + ExtnDat_version, 1);
result = mnvm_noErr;
break;
case kCmndVideoGetIntEnbl:
#if VID_dolog
dbglog_WriteNote("Video_Access kCmndVideoGetIntEnbl");
#endif
put_vm_word(p + 8,
Vid_VBLintunenbl ? 0 : 1);
result = mnvm_noErr;
break;
case kCmndVideoSetIntEnbl:
#if VID_dolog
dbglog_WriteNote("Video_Access kCmndVideoSetIntEnbl");
#endif
Vid_VBLintunenbl =
(0 == get_vm_word(p + 8))
? 1 : 0;
result = mnvm_noErr;
break;
case kCmndVideoClearInt:
#if VID_dolog && 0 /* frequent */
dbglog_WriteNote("Video_Access kCmndVideoClearInt");
#endif
Vid_VBLinterrupt = 1;
result = mnvm_noErr;
break;
case kCmndVideoControl:
{
CPTR CntrlParams = get_vm_long(p + 8);
CPTR csParam =
get_vm_long(CntrlParams + CntrlParam_csParam);
ui4r csCode =
get_vm_word(CntrlParams + CntrlParam_csCode);
switch (csCode) {
case 0: /* VidReset */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoControl, VidReset");
#endif
put_vm_word(csParam + VDPageInfo_csMode,
Vid_GetMode());
put_vm_word(csParam + VDPageInfo_csPage, 0);
/* page is always 0 */
put_vm_long(csParam + VDPageInfo_csBaseAddr,
VidBaseAddr);
result = mnvm_noErr;
break;
case 1: /* KillIO */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoControl, KillIO");
#endif
result = mnvm_noErr;
break;
case 2: /* SetVidMode */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoControl, "
"SetVidMode");
#endif
if (0 != get_vm_word(
csParam + VDPageInfo_csPage))
{
/* return mnvm_controlErr, page must be 0 */
ReportAbnormalID(0x0A02,
"SetVidMode not page 0");
} else {
result = Vid_SetMode(get_vm_word(
csParam + VDPageInfo_csMode));
put_vm_long(csParam + VDPageInfo_csBaseAddr,
VidBaseAddr);
}
break;
case 3: /* SetEntries */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoControl, "
"SetEntries");
#endif
#if (0 != vMacScreenDepth) && (vMacScreenDepth < 4)
if (UseColorMode) {
CPTR csTable = get_vm_long(
csParam + VDSetEntryRecord_csTable);
ui4r csStart = get_vm_word(
csParam + VDSetEntryRecord_csStart);
ui4r csCount = 1 + get_vm_word(
csParam + VDSetEntryRecord_csCount);
if (((ui4r) 0xFFFF) == csStart) {
int i;
result = mnvm_noErr;
for (i = 0; i < csCount; ++i) {
ui4r j = get_vm_word(csTable + 0);
if (j == 0) {
/* ignore input, leave white */
} else
if (j == CLUT_size - 1) {
/* ignore input, leave black */
} else
if (j >= CLUT_size) {
/* out of range */
result = mnvm_paramErr;
} else
{
ui4r r =
get_vm_word(csTable + 2);
ui4r g =
get_vm_word(csTable + 4);
ui4r b =
get_vm_word(csTable + 6);
CLUT_reds[j] = r;
CLUT_greens[j] = g;
CLUT_blues[j] = b;
}
csTable += 8;
}
ColorMappingChanged = trueblnr;
} else
if (csStart + csCount < csStart) {
/* overflow */
result = mnvm_paramErr;
} else
if (csStart + csCount > CLUT_size) {
result = mnvm_paramErr;
} else
{
int i;
for (i = 0; i < csCount; ++i) {
int j = i + csStart;
if (j == 0) {
/* ignore input, leave white */
} else
if (j == CLUT_size - 1) {
/* ignore input, leave black */
} else
{
ui4r r =
get_vm_word(csTable + 2);
ui4r g =
get_vm_word(csTable + 4);
ui4r b =
get_vm_word(csTable + 6);
CLUT_reds[j] = r;
CLUT_greens[j] = g;
CLUT_blues[j] = b;
}
csTable += 8;
}
ColorMappingChanged = trueblnr;
result = mnvm_noErr;
}
} else
#endif
{
/* not implemented */
}
break;
case 4: /* SetGamma */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoControl, SetGamma");
#endif
{
#if 0
CPTR csTable = get_vm_long(
csParam + VDGammaRecord_csGTable);
/* not implemented */
#endif
}
#if 0
ReportAbnormalID(0x0A03,
"Video_Access SetGamma not implemented");
#else
result = mnvm_noErr;
#endif
break;
case 5: /* GrayScreen */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoControl, "
"GrayScreen");
#endif
{
#if 0
ui4r csPage = get_vm_word(
csParam + VDPageInfo_csPage);
/* not implemented */
#endif
FillScreenWithGrayPattern();
result = mnvm_noErr;
}
break;
case 6: /* SetGray */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoControl, SetGray");
#endif
{
ui3r csMode = get_vm_byte(
csParam + VDPageInfo_csMode);
/*
"Designing Cards and Drivers" book
says this is a word, but it seems
to be a byte.
*/
UseGrayTones = (csMode != 0);
result = mnvm_noErr;
}
break;
case 9: /* SetDefaultMode */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoControl, "
"SetDefaultMode");
#endif
/* not handled yet */
/*
seen when close Monitors control panel
in system 7.5.5
*/
break;
case 16: /* SavePreferredConfiguration */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoControl, "
"SavePreferredConfiguration");
#endif
/* not handled yet */
/*
seen when close Monitors control panel
in system 7.5.5
*/
break;
default:
ReportAbnormalID(0x0A04,
"kCmndVideoControl, unknown csCode");
#if dbglog_HAVE
dbglog_writelnNum("csCode", csCode);
#endif
break;
}
}
break;
case kCmndVideoStatus:
{
CPTR CntrlParams = get_vm_long(p + 8);
CPTR csParam = get_vm_long(
CntrlParams + CntrlParam_csParam);
ui4r csCode = get_vm_word(
CntrlParams + CntrlParam_csCode);
result = mnvm_statusErr;
switch (csCode) {
case 2: /* GetMode */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, GetMode");
#endif
put_vm_word(csParam + VDPageInfo_csMode,
Vid_GetMode());
put_vm_word(csParam + VDPageInfo_csPage, 0);
/* page is always 0 */
put_vm_long(csParam + VDPageInfo_csBaseAddr,
VidBaseAddr);
result = mnvm_noErr;
break;
case 3: /* GetEntries */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, "
"GetEntries");
#endif
{
#if 0
CPTR csTable = get_vm_long(
csParam + VDSetEntryRecord_csTable);
put_vm_word(
csParam + VDSetEntryRecord_csStart,
csStart);
put_vm_word(
csParam + VDSetEntryRecord_csCount,
csCount);
#endif
ReportAbnormalID(0x0A05,
"GetEntries not implemented");
}
break;
case 4: /* GetPages */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, GetPages");
#endif
put_vm_word(csParam + VDPageInfo_csPage, 1);
/* always 1 page */
result = mnvm_noErr;
break;
case 5: /* GetPageAddr */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus,"
" GetPageAddr");
#endif
{
ui4r csPage = get_vm_word(
csParam + VDPageInfo_csPage);
if (0 != csPage) {
/*
return mnvm_statusErr,
page must be 0
*/
} else {
put_vm_long(
csParam + VDPageInfo_csBaseAddr,
VidBaseAddr);
result = mnvm_noErr;
}
}
break;
case 6: /* GetGray */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, GetGray");
#endif
put_vm_word(csParam + VDPageInfo_csMode,
UseGrayTones ? 0x0100 : 0);
/*
"Designing Cards and Drivers" book
says this is a word, but it seems
to be a byte.
*/
result = mnvm_noErr;
break;
case 8: /* GetGamma */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, "
"GetGamma");
#endif
/* not handled yet */
/*
seen when close Monitors control panel
in system 7.5.5
*/
break;
case 9: /* GetDefaultMode */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, "
"GetDefaultMode");
#endif
/* not handled yet */
/* seen in System 7.5.5 boot */
break;
case 10: /* GetCurrentMode */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, "
"GetCurrentMode");
#endif
#if 0
put_vm_word(csParam + VDPageInfo_csMode,
Vid_GetMode());
put_vm_long(csParam + VDPageInfo_csData, 0);
/* what is this ? */
put_vm_word(csParam + VDPageInfo_csPage, 0);
/* page is always 0 */
put_vm_long(csParam + VDPageInfo_csBaseAddr,
VidBaseAddr);
result = mnvm_noErr;
#endif
break;
case 12: /* GetConnection */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, "
"GetConnection");
#endif
/* not handled yet */
/* seen in System 7.5.5 boot */
break;
case 13: /* GetCurrentMode */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, "
"GetCurrentMode");
#endif
/* not handled yet */
/* seen in System 7.5.5 boot */
break;
case 14: /* GetModeBaseAddress */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, "
"GetModeBaseAddress");
#endif
/* not handled yet */
/*
seen in System 7.5.5 Monitors control panel
*/
break;
case 16: /* GetPreferredConfiguration */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, "
"GetPreferredConfiguration");
#endif
/* not handled yet */
/* seen in System 7.5.5 boot */
break;
case 17: /* GetNextResolution */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, "
"GetNextResolution");
#endif
/* not handled yet */
/*
seen in System 7.5.5 monitors control panel
option button
*/
break;
case 18: /* GetVideoParameters */
#if VID_dolog
dbglog_WriteNote(
"Video_Access kCmndVideoStatus, "
"GetVideoParameters");
#endif
/* not handled yet */
/* seen in System 7.5.5 boot */
break;
default:
ReportAbnormalID(0x0A06,
"Video_Access kCmndVideoStatus, "
"unknown csCode");
#if dbglog_HAVE
dbglog_writelnNum("csCode", csCode);
#endif
break;
}
}
break;
default:
ReportAbnormalID(0x0A07,
"Video_Access, unknown commnd");
break;
}
put_vm_word(p + ExtnDat_result, result);
}