ref: d311c8e87038a48dc4162df0e2821c04dc0f6fa3
dir: /src/OSGLUNDS.c/
/*
OSGLUNDS.c
Copyright (C) 2012 Lazyone, 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.
*/
/*
Operating System GLUe for Nintendo DS
*/
#include "CNFGRAPI.h"
#include "SYSDEPNS.h"
#include "ENDIANAC.h"
#include "MYOSGLUE.h"
#include "STRCONST.h"
#include "FB1BPP2I.h"
#define CONSOLE_TRACE() \
fprintf(stderr, "%s() at line %d\n", __FUNCTION__, __LINE__)
/* --- some simple utilities --- */
GLOBALOSGLUPROC MyMoveBytes(anyp srcPtr, anyp destPtr, si5b byteCount)
{
(void) memcpy((char *)destPtr, (char *)srcPtr, byteCount);
}
/*
Nintendo DS port globals
*/
#define DS_ScreenWidth 256
#define DS_ScreenHeight 192
LOCALVAR volatile int VBlankCounter = 0;
LOCALVAR volatile int HBlankCounter = 0;
LOCALVAR volatile unsigned int TimerBaseMSec = 0;
LOCALVAR Keyboard* DSKeyboard = NULL;
LOCALVAR volatile int LastKeyboardKey = NOKEY;
LOCALVAR volatile int KeyboardKey = NOKEY;
LOCALVAR volatile int KeysHeld = 0;
LOCALVAR volatile int CursorX = 0;
LOCALVAR volatile int CursorY = 0;
LOCALVAR int Display_bg2_Main = 0;
/* --- control mode and internationalization --- */
#define NeedCell2PlainAsciiMap 1
#include "INTLCHAR.h"
/* --- sending debugging info to file --- */
#if dbglog_HAVE
#define dbglog_ToStdErr 1
#if ! dbglog_ToStdErr
LOCALVAR FILE *dbglog_File = NULL;
#endif
LOCALFUNC blnr dbglog_open0(void)
{
#if dbglog_ToStdErr
return trueblnr;
#else
dbglog_File = fopen("dbglog.txt", "w");
return (NULL != dbglog_File);
#endif
}
LOCALPROC dbglog_write0(char *s, uimr L)
{
#if dbglog_ToStdErr
(void) fwrite(s, 1, L, stderr);
#else
if (dbglog_File != NULL) {
(void) fwrite(s, 1, L, dbglog_File);
}
#endif
}
LOCALPROC dbglog_close0(void)
{
#if ! dbglog_ToStdErr
if (dbglog_File != NULL) {
fclose(dbglog_File);
dbglog_File = NULL;
}
#endif
}
#endif
/* --- debug settings and utilities --- */
#if ! dbglog_HAVE
#define WriteExtraErr(s)
#else
LOCALPROC WriteExtraErr(char *s)
{
dbglog_writeCStr("*** error: ");
dbglog_writeCStr(s);
dbglog_writeReturn();
}
#endif
/* --- information about the environment --- */
#define WantColorTransValid 0
#include "COMOSGLU.h"
#include "CONTROLM.h"
LOCALPROC NativeStrFromCStr(char *r, char *s)
{
ui3b ps[ClStrMaxLength];
int i;
int L;
ClStrFromSubstCStr(&L, ps, s);
for (i = 0; i < L; ++i) {
r[i] = Cell2PlainAsciiMap[ps[i]];
}
r[L] = 0;
}
/* --- drives --- */
#define NotAfileRef NULL
LOCALVAR FILE *Drives[NumDrives]; /* open disk image files */
#if IncludeSonyGetName || IncludeSonyNew
LOCALVAR char *DriveNames[NumDrives];
#endif
LOCALPROC InitDrives(void)
{
/*
This isn't really needed, Drives[i] and DriveNames[i]
need not have valid values when not vSonyIsInserted[i].
*/
tDrive i;
for (i = 0; i < NumDrives; ++i) {
Drives[i] = NotAfileRef;
#if IncludeSonyGetName || IncludeSonyNew
DriveNames[i] = NULL;
#endif
}
}
GLOBALOSGLUFUNC tMacErr vSonyTransfer(blnr IsWrite, ui3p Buffer,
tDrive Drive_No, ui5r Sony_Start, ui5r Sony_Count,
ui5r *Sony_ActCount)
{
tMacErr err = mnvm_miscErr;
FILE *refnum = Drives[Drive_No];
ui5r NewSony_Count = 0;
if (0 == fseek(refnum, Sony_Start, SEEK_SET)) {
if (IsWrite) {
NewSony_Count = fwrite(Buffer, 1, Sony_Count, refnum);
} else {
NewSony_Count = fread(Buffer, 1, Sony_Count, refnum);
}
if (NewSony_Count == Sony_Count) {
err = mnvm_noErr;
}
}
if (nullpr != Sony_ActCount) {
*Sony_ActCount = NewSony_Count;
}
return err; /*& figure out what really to return &*/
}
GLOBALOSGLUFUNC tMacErr vSonyGetSize(tDrive Drive_No, ui5r *Sony_Count)
{
tMacErr err = mnvm_miscErr;
FILE *refnum = Drives[Drive_No];
long v;
if (0 == fseek(refnum, 0, SEEK_END)) {
v = ftell(refnum);
if (v >= 0) {
*Sony_Count = v;
err = mnvm_noErr;
}
}
return err; /*& figure out what really to return &*/
}
LOCALFUNC tMacErr vSonyEject0(tDrive Drive_No, blnr deleteit)
{
FILE *refnum = Drives[Drive_No];
DiskEjectedNotify(Drive_No);
fclose(refnum);
Drives[Drive_No] = NotAfileRef; /* not really needed */
#if IncludeSonyGetName || IncludeSonyNew
{
char *s = DriveNames[Drive_No];
if (NULL != s) {
if (deleteit) {
remove(s);
}
free(s);
DriveNames[Drive_No] = NULL; /* not really needed */
}
}
#endif
return mnvm_noErr;
}
GLOBALOSGLUFUNC tMacErr vSonyEject(tDrive Drive_No)
{
return vSonyEject0(Drive_No, falseblnr);
}
#if IncludeSonyNew
GLOBALOSGLUFUNC tMacErr vSonyEjectDelete(tDrive Drive_No)
{
return vSonyEject0(Drive_No, trueblnr);
}
#endif
LOCALPROC UnInitDrives(void)
{
tDrive i;
for (i = 0; i < NumDrives; ++i) {
if (vSonyIsInserted(i)) {
(void) vSonyEject(i);
}
}
}
#if IncludeSonyGetName
GLOBALOSGLUFUNC tMacErr vSonyGetName(tDrive Drive_No, tPbuf *r)
{
char *drivepath = DriveNames[Drive_No];
if (NULL == drivepath) {
return mnvm_miscErr;
} else {
char *s = strrchr(drivepath, '/');
if (NULL == s) {
s = drivepath;
} else {
++s;
}
return NativeTextToMacRomanPbuf(s, r);
}
}
#endif
LOCALFUNC blnr Sony_Insert0(FILE *refnum, blnr locked,
char *drivepath)
{
tDrive Drive_No;
blnr IsOk = falseblnr;
if (! FirstFreeDisk(&Drive_No)) {
MacMsg(kStrTooManyImagesTitle, kStrTooManyImagesMessage,
falseblnr);
} else {
/* printf("Sony_Insert0 %d\n", (int)Drive_No); */
{
Drives[Drive_No] = refnum;
DiskInsertNotify(Drive_No, locked);
#if IncludeSonyGetName || IncludeSonyNew
{
ui5b L = strlen(drivepath);
char *p = malloc(L + 1);
if (p != NULL) {
(void) memcpy(p, drivepath, L + 1);
}
DriveNames[Drive_No] = p;
}
#endif
IsOk = trueblnr;
}
}
if (! IsOk) {
fclose(refnum);
}
return IsOk;
}
LOCALFUNC blnr Sony_Insert1(char *drivepath, blnr silentfail)
{
blnr locked = falseblnr;
/* printf("Sony_Insert1 %s\n", drivepath); */
FILE *refnum = fopen(drivepath, "rb+");
if (NULL == refnum) {
locked = trueblnr;
refnum = fopen(drivepath, "rb");
CONSOLE_TRACE();
}
if (NULL == refnum) {
if (! silentfail) {
MacMsg(kStrOpenFailTitle, kStrOpenFailMessage, falseblnr);
CONSOLE_TRACE();
}
} else {
CONSOLE_TRACE();
return Sony_Insert0(refnum, locked, drivepath);
}
return falseblnr;
}
#define Sony_Insert2(s) Sony_Insert1(s, trueblnr)
LOCALFUNC blnr Sony_InsertIth(int i)
{
blnr v;
if ((i > 9) || ! FirstFreeDisk(nullpr)) {
v = falseblnr;
} else {
char s[] = "disk?.dsk";
s[4] = '0' + i;
v = Sony_Insert2(s);
}
return v;
}
LOCALFUNC blnr LoadInitialImages(void)
{
int i;
CONSOLE_TRACE();
for (i = 1; Sony_InsertIth(i); ++i) {
/* stop on first error (including file not found) */
}
return trueblnr;
}
#if IncludeSonyNew
LOCALFUNC blnr WriteZero(FILE *refnum, ui5b L)
{
#define ZeroBufferSize 2048
ui5b i;
ui3b buffer[ZeroBufferSize];
memset(&buffer, 0, ZeroBufferSize);
while (L > 0) {
i = (L > ZeroBufferSize) ? ZeroBufferSize : L;
if (fwrite(buffer, 1, i, refnum) != i) {
return falseblnr;
}
L -= i;
}
return trueblnr;
}
#endif
#if IncludeSonyNew
LOCALPROC MakeNewDisk(ui5b L, char *drivepath)
{
blnr IsOk = falseblnr;
FILE *refnum = fopen(drivepath, "wb+");
if (NULL == refnum) {
MacMsg(kStrOpenFailTitle, kStrOpenFailMessage, falseblnr);
} else {
if (WriteZero(refnum, L)) {
IsOk = Sony_Insert0(refnum, falseblnr, drivepath);
refnum = NULL;
}
if (refnum != NULL) {
fclose(refnum);
}
if (! IsOk) {
(void) remove(drivepath);
}
}
}
#endif
#if IncludeSonyNew
LOCALPROC MakeNewDiskAtDefault(ui5b L)
{
char s[ClStrMaxLength + 1];
NativeStrFromCStr(s, "untitled.dsk");
MakeNewDisk(L, s);
}
#endif
/* --- ROM --- */
LOCALFUNC tMacErr LoadMacRomFrom(char *path)
{
tMacErr err;
FILE *ROM_File;
int File_Size;
ROM_File = fopen(path, "rb");
if (NULL == ROM_File) {
err = mnvm_fnfErr;
} else {
File_Size = fread(ROM, 1, kROM_Size, ROM_File);
if (kROM_Size != File_Size) {
if (feof(ROM_File)) {
MacMsgOverride(kStrShortROMTitle,
kStrShortROMMessage);
err = mnvm_eofErr;
} else {
MacMsgOverride(kStrNoReadROMTitle,
kStrNoReadROMMessage);
err = mnvm_miscErr;
}
} else {
err = ROM_IsValid();
}
fclose(ROM_File);
}
return err;
}
LOCALFUNC blnr LoadMacRom(void)
{
tMacErr err;
if (mnvm_fnfErr == (err = LoadMacRomFrom(RomFileName)))
{
}
return trueblnr; /* keep launching Mini vMac, regardless */
}
/* --- video out --- */
#if MayFullScreen
LOCALVAR short hOffset;
LOCALVAR short vOffset;
#endif
#if VarFullScreen
LOCALVAR blnr UseFullScreen = (WantInitFullScreen != 0);
#endif
#if EnableMagnify
LOCALVAR blnr UseMagnify = (WantInitMagnify != 0);
#endif
LOCALVAR blnr CurSpeedStopped = trueblnr;
#if EnableMagnify
#define MaxScale MyWindowScale
#else
#define MaxScale 1
#endif
LOCALPROC HaveChangedScreenBuff(ui4r top, ui4r left,
ui4r bottom, ui4r right)
{
/*
Oh god, clean this up.
*/
u8 *octpix = NULL;
u32 *vram = NULL;
octpix = (u8 *)GetCurDrawBuff();
vram = (u32 *)BG_BMP_RAM(0);
octpix += ((top * vMacScreenWidth ) >> 3);
vram += ((top * vMacScreenWidth ) >> 2);
FB1BPPtoIndexed(vram, octpix,
((bottom - top) * vMacScreenWidth) >> 3);
}
LOCALPROC MyDrawChangesAndClear(void)
{
if (ScreenChangedBottom > ScreenChangedTop) {
HaveChangedScreenBuff(ScreenChangedTop, ScreenChangedLeft,
ScreenChangedBottom, ScreenChangedRight);
ScreenClearChanges();
}
}
GLOBALOSGLUPROC DoneWithDrawingForTick(void)
{
#if 0 && EnableFSMouseMotion
if (HaveMouseMotion) {
AutoScrollScreen();
}
#endif
MyDrawChangesAndClear();
}
/* --- mouse --- */
/* cursor state */
LOCALPROC CheckMouseState(void)
{
si5b MotionX;
si5b MotionY;
/*
TODO:
- Don't hardcode motion values
- Acceleration?
- Allow key remapping
- Handle touchscreen input (non-mouse motion)
- Handle touchscreen input (trackpad style mouse motion)
*/
if (0 != (KeysHeld & KEY_LEFT)) {
MotionX = -4;
} else if (0 != (KeysHeld & KEY_RIGHT)) {
MotionX = 4;
}
if (0 != (KeysHeld & KEY_UP)) {
MotionY = -4;
} else if (0 != (KeysHeld & KEY_DOWN)) {
MotionY = 4;
}
HaveMouseMotion = trueblnr;
MyMousePositionSetDelta(MotionX, MotionY);
MyMouseButtonSet(0 != (KeysHeld & KEY_A));
}
/* --- keyboard input --- */
LOCALVAR ui3b KC2MKC[256];
/*
AHA!
GCC Was turning this into a macro of some sort which of course
broke horribly with libnds's keyboard having some negative values.
*/
LOCALPROC AssignKeyToMKC(int UKey, int LKey, ui3r MKC)
{
if (UKey != NOKEY) {
KC2MKC[UKey] = MKC;
}
if (LKey != NOKEY) {
KC2MKC[LKey] = MKC;
}
}
LOCALFUNC blnr KC2MKCInit(void)
{
int i;
for (i = 0; i < 256; ++i) {
KC2MKC[i] = MKC_None;
}
AssignKeyToMKC('A', 'a', MKC_A);
AssignKeyToMKC('B', 'b', MKC_B);
AssignKeyToMKC('C', 'c', MKC_C);
AssignKeyToMKC('D', 'd', MKC_D);
AssignKeyToMKC('E', 'e', MKC_E);
AssignKeyToMKC('F', 'f', MKC_F);
AssignKeyToMKC('G', 'g', MKC_G);
AssignKeyToMKC('H', 'h', MKC_H);
AssignKeyToMKC('I', 'i', MKC_I);
AssignKeyToMKC('J', 'j', MKC_J);
AssignKeyToMKC('K', 'k', MKC_K);
AssignKeyToMKC('L', 'l', MKC_L);
AssignKeyToMKC('M', 'm', MKC_M);
AssignKeyToMKC('N', 'n', MKC_N);
AssignKeyToMKC('O', 'o', MKC_O);
AssignKeyToMKC('P', 'p', MKC_P);
AssignKeyToMKC('Q', 'q', MKC_Q);
AssignKeyToMKC('R', 'r', MKC_R);
AssignKeyToMKC('S', 's', MKC_S);
AssignKeyToMKC('T', 't', MKC_T);
AssignKeyToMKC('U', 'u', MKC_U);
AssignKeyToMKC('V', 'v', MKC_V);
AssignKeyToMKC('W', 'w', MKC_W);
AssignKeyToMKC('X', 'x', MKC_X);
AssignKeyToMKC('Y', 'y', MKC_Y);
AssignKeyToMKC('Z', 'z', MKC_Z);
AssignKeyToMKC(')', '0', MKC_0);
AssignKeyToMKC('!', '1', MKC_1);
AssignKeyToMKC('@', '2', MKC_2);
AssignKeyToMKC('#', '3', MKC_3);
AssignKeyToMKC('$', '4', MKC_4);
AssignKeyToMKC('%', '5', MKC_5);
AssignKeyToMKC('^', '6', MKC_6);
AssignKeyToMKC('&', '7', MKC_7);
AssignKeyToMKC('*', '8', MKC_8);
AssignKeyToMKC('(', '9', MKC_9);
AssignKeyToMKC('~', '`', MKC_formac_Grave);
AssignKeyToMKC('_', '-', MKC_Minus);
AssignKeyToMKC('+', '=', MKC_Equal);
AssignKeyToMKC(':', ';', MKC_SemiColon);
AssignKeyToMKC('\"', '\'', MKC_SingleQuote);
AssignKeyToMKC('{', '[', MKC_LeftBracket);
AssignKeyToMKC('}', ']', MKC_RightBracket);
AssignKeyToMKC('|', '\\', MKC_formac_BackSlash);
AssignKeyToMKC('<', ',', MKC_Comma);
AssignKeyToMKC('>', '.', MKC_Period);
AssignKeyToMKC('?', '/', MKC_formac_Slash);
AssignKeyToMKC(NOKEY, DVK_SPACE, MKC_Space);
AssignKeyToMKC(NOKEY, DVK_BACKSPACE, MKC_BackSpace);
AssignKeyToMKC(NOKEY, DVK_ENTER, MKC_formac_Enter);
AssignKeyToMKC(NOKEY, DVK_TAB, MKC_Tab);
InitKeyCodes();
return trueblnr;
}
LOCALPROC DoKeyCode0(int i, blnr down)
{
ui3r key = KC2MKC[i];
if (MKC_None != key) {
fprintf(stderr, "%s() :: %c (%d) == %d\n",
__FUNCTION__, (char) i, key, down);
Keyboard_UpdateKeyMap2(key, down);
}
}
LOCALPROC DoKeyCode(int i, blnr down)
{
if ((i >= 0) && (i < 256)) {
DoKeyCode0(i, down);
}
}
/*
TODO:
Rethink keyboard input...
Especially shift and capslock, the libnds keyboard
is weird about those.
*/
LOCALVAR blnr DS_Keystate_Menu = falseblnr;
LOCALVAR blnr DS_Keystate_Shift = falseblnr;
LOCALPROC DS_HandleKey(si5b Key, blnr Down)
{
if (Key == NOKEY) {
return;
}
switch (Key) {
case DVK_UP:
Keyboard_UpdateKeyMap2(MKC_Up, Down);
break;
case DVK_DOWN:
Keyboard_UpdateKeyMap2(MKC_Down, Down);
break;
case DVK_LEFT:
Keyboard_UpdateKeyMap2(MKC_Left, Down);
break;
case DVK_RIGHT:
Keyboard_UpdateKeyMap2(MKC_Right, Down);
break;
case DVK_SHIFT:
Keyboard_UpdateKeyMap2(MKC_formac_Shift, trueblnr);
break;
default:
if (Key > 0) {
DoKeyCode(Key, Down);
Keyboard_UpdateKeyMap2(MKC_formac_Shift, falseblnr);
}
break;
}
}
LOCALPROC DS_HandleKeyboard(void)
{
LastKeyboardKey = KeyboardKey;
KeyboardKey = keyboardUpdate();
if ((KeyboardKey == NOKEY) && (LastKeyboardKey != NOKEY)) {
DS_HandleKey(LastKeyboardKey, falseblnr);
LastKeyboardKey = NOKEY;
} else {
DS_HandleKey(KeyboardKey, trueblnr);
LastKeyboardKey = KeyboardKey;
}
}
/* --- time, date, location --- */
LOCALVAR ui5b TrueEmulatedTime = 0;
#include "DATE2SEC.h"
#define TicksPerSecond 1000000
/* #define TicksPerSecond 1000 */
LOCALVAR blnr HaveTimeDelta = falseblnr;
LOCALVAR ui5b TimeDelta;
LOCALVAR ui5b NewMacDateInSeconds;
LOCALVAR ui5b LastTimeSec;
LOCALVAR ui5b LastTimeUsec;
LOCALPROC GetCurrentTicks(void)
{
struct timeval t;
gettimeofday(&t, NULL);
/*
HACKHACKHACK
*/
t.tv_usec = TimerBaseMSec + TIMER1_DATA;
t.tv_usec = t.tv_usec * 1000;
if (! HaveTimeDelta) {
time_t Current_Time;
struct tm *s;
(void) time(&Current_Time);
s = localtime(&Current_Time);
TimeDelta = Date2MacSeconds(s->tm_sec, s->tm_min, s->tm_hour,
s->tm_mday, 1 + s->tm_mon, 1900 + s->tm_year) - t.tv_sec;
#if 0 && AutoTimeZone /* how portable is this ? */
CurMacDelta = ((ui5b)(s->tm_gmtoff) & 0x00FFFFFF)
| ((s->tm_isdst ? 0x80 : 0) << 24);
#endif
HaveTimeDelta = trueblnr;
}
NewMacDateInSeconds = t.tv_sec + TimeDelta;
LastTimeSec = (ui5b)t.tv_sec;
LastTimeUsec = (ui5b)t.tv_usec;
}
/* #define MyInvTimeStep 16626 */ /* TicksPerSecond / 60.14742 */
#define MyInvTimeStep 17
LOCALVAR ui5b NextTimeSec;
LOCALVAR ui5b NextTimeUsec;
LOCALPROC IncrNextTime(void)
{
NextTimeUsec += MyInvTimeStep;
if (NextTimeUsec >= TicksPerSecond) {
NextTimeUsec -= TicksPerSecond;
NextTimeSec += 1;
}
}
LOCALPROC InitNextTime(void)
{
NextTimeSec = LastTimeSec;
NextTimeUsec = LastTimeUsec;
IncrNextTime();
}
LOCALPROC StartUpTimeAdjust(void)
{
GetCurrentTicks();
InitNextTime();
}
LOCALFUNC si5b GetTimeDiff(void)
{
return ((si5b)(LastTimeSec - NextTimeSec)) * TicksPerSecond
+ ((si5b)(LastTimeUsec - NextTimeUsec));
}
LOCALPROC UpdateTrueEmulatedTime(void)
{
si5b TimeDiff;
GetCurrentTicks();
TimeDiff = GetTimeDiff();
if (TimeDiff >= 0) {
if (TimeDiff > 4 * MyInvTimeStep) {
/* emulation interrupted, forget it */
++TrueEmulatedTime;
InitNextTime();
} else {
do {
++TrueEmulatedTime;
IncrNextTime();
TimeDiff -= TicksPerSecond;
} while (TimeDiff >= 0);
}
} else if (TimeDiff < - 2 * MyInvTimeStep) {
/* clock goofed if ever get here, reset */
InitNextTime();
}
}
LOCALFUNC blnr CheckDateTime(void)
{
if (CurMacDateInSeconds != NewMacDateInSeconds) {
CurMacDateInSeconds = NewMacDateInSeconds;
return trueblnr;
} else {
return falseblnr;
}
}
LOCALFUNC blnr InitLocationDat(void)
{
GetCurrentTicks();
CurMacDateInSeconds = NewMacDateInSeconds;
return trueblnr;
}
/* --- basic dialogs --- */
LOCALPROC CheckSavedMacMsg(void)
{
/* called only on quit, if error saved but not yet reported */
if (nullpr != SavedBriefMsg) {
char briefMsg0[ClStrMaxLength + 1];
char longMsg0[ClStrMaxLength + 1];
NativeStrFromCStr(briefMsg0, SavedBriefMsg);
NativeStrFromCStr(longMsg0, SavedLongMsg);
fprintf(stderr, "%s\n", briefMsg0);
fprintf(stderr, "%s\n", longMsg0);
SavedBriefMsg = nullpr;
}
}
/* --- main window creation and disposal --- */
/*
Screen_Init
Mode 5 gives us 2 text backgrounds 0-1 (tiled mode) and
2 extended rotation backgrounds 2-3. (linear fb)
Also we need to map 2 banks of vram so we have enough space for
our 512x512 surface.
*/
LOCALFUNC blnr Screen_Init(void)
{
videoSetMode(MODE_5_2D);
vramSetBankA(VRAM_A_MAIN_BG_0x06000000);
vramSetBankB(VRAM_B_MAIN_BG_0x06020000);
Display_bg2_Main = bgInit(2, BgType_Bmp8, BgSize_B8_512x512, 0, 0);
BG_PALETTE[0] = RGB15(31, 31, 31);
BG_PALETTE[1] = RGB15(0, 0, 0);
return trueblnr;
}
#if VarFullScreen
LOCALPROC ToggleWantFullScreen(void)
{
WantFullScreen = ! WantFullScreen;
}
#endif
/* --- SavedTasks --- */
LOCALPROC LeaveSpeedStopped(void)
{
#if MySoundEnabled
MySound_Start();
#endif
StartUpTimeAdjust();
}
LOCALPROC EnterSpeedStopped(void)
{
#if MySoundEnabled
MySound_Stop();
#endif
}
LOCALPROC CheckForSavedTasks(void)
{
if (MyEvtQNeedRecover) {
MyEvtQNeedRecover = falseblnr;
/* attempt cleanup, MyEvtQNeedRecover may get set again */
MyEvtQTryRecoverFromFull();
}
if (RequestMacOff) {
RequestMacOff = falseblnr;
if (AnyDiskInserted()) {
MacMsgOverride(kStrQuitWarningTitle,
kStrQuitWarningMessage);
} else {
ForceMacOff = trueblnr;
}
}
if (ForceMacOff) {
return;
}
if (CurSpeedStopped != SpeedStopped) {
CurSpeedStopped = ! CurSpeedStopped;
if (CurSpeedStopped) {
EnterSpeedStopped();
} else {
LeaveSpeedStopped();
}
}
#if IncludeSonyNew
if (vSonyNewDiskWanted) {
#if IncludeSonyNameNew
if (vSonyNewDiskName != NotAPbuf) {
ui3p NewDiskNameDat;
if (MacRomanTextToNativePtr(vSonyNewDiskName, trueblnr,
&NewDiskNameDat))
{
MakeNewDisk(vSonyNewDiskSize, (char *)NewDiskNameDat);
free(NewDiskNameDat);
}
PbufDispose(vSonyNewDiskName);
vSonyNewDiskName = NotAPbuf;
} else
#endif
{
MakeNewDiskAtDefault(vSonyNewDiskSize);
}
vSonyNewDiskWanted = falseblnr;
/* must be done after may have gotten disk */
}
#endif
if ((nullpr != SavedBriefMsg) & ! MacMsgDisplayed) {
MacMsgDisplayOn();
}
if (NeedWholeScreenDraw) {
NeedWholeScreenDraw = falseblnr;
ScreenChangedAll();
}
#if NeedRequestIthDisk
if (0 != RequestIthDisk) {
Sony_InsertIth(RequestIthDisk);
RequestIthDisk = 0;
}
#endif
}
/* --- main program flow --- */
GLOBALOSGLUFUNC blnr ExtraTimeNotOver(void)
{
UpdateTrueEmulatedTime();
return TrueEmulatedTime == OnTrueTime;
}
LOCALPROC WaitForTheNextEvent(void)
{
}
LOCALPROC CheckForSystemEvents(void)
{
DS_HandleKeyboard();
}
GLOBALOSGLUPROC WaitForNextTick(void)
{
label_retry:
CheckForSystemEvents();
CheckForSavedTasks();
if (ForceMacOff) {
return;
}
if (CurSpeedStopped) {
MyDrawChangesAndClear();
WaitForTheNextEvent();
goto label_retry;
}
if (ExtraTimeNotOver()) {
si5b TimeDiff = GetTimeDiff();
if (TimeDiff < 0) {
/*
FIXME:
Implement this?
struct timespec rqt;
struct timespec rmt;
rqt.tv_sec = 0;
rqt.tv_nsec = (- TimeDiff) * 1000;
(void) nanosleep(&rqt, &rmt);
*/
}
goto label_retry;
}
if (CheckDateTime()) {
#if MySoundEnabled
MySound_SecondNotify();
#endif
#if EnableDemoMsg
DemoModeSecondNotify();
#endif
}
CheckMouseState();
OnTrueTime = TrueEmulatedTime;
}
/*
DS_ScrollBackground:
Positions the screen as to center it over the emulated cursor.
*/
LOCALPROC DS_ScrollBackground(void)
{
int ScrollX = 0;
int ScrollY = 0;
int Scale = 0;
/*
TODO:
Lots of magic numbers here.
*/
#if EnableMagnify
if (WantMagnify) {
ScrollX = ((int) CurMouseH) - (DS_ScreenWidth / 4);
ScrollY = ((int) CurMouseV) - (DS_ScreenHeight / 4);
Scale = 128;
ScrollX = ScrollX > vMacScreenWidth - (DS_ScreenWidth / 2)
? vMacScreenWidth - (DS_ScreenWidth / 2)
: ScrollX;
ScrollY = ScrollY > vMacScreenHeight - (DS_ScreenHeight / 2)
? vMacScreenHeight - (DS_ScreenHeight / 2)
: ScrollY;
} else
#endif
{
ScrollX = ((int) CurMouseH) - (DS_ScreenWidth / 2);
ScrollY = ((int) CurMouseV) - (DS_ScreenHeight / 2);
Scale = 256;
ScrollX = ScrollX > vMacScreenWidth - DS_ScreenWidth
? vMacScreenWidth - DS_ScreenWidth
: ScrollX;
ScrollY = ScrollY > vMacScreenHeight - DS_ScreenHeight
? vMacScreenHeight - DS_ScreenHeight
: ScrollY;
}
ScrollX = ScrollX < 0 ? 0 : ScrollX;
ScrollY = ScrollY < 0 ? 0 : ScrollY;
if (Display_bg2_Main) {
bgSetScale(Display_bg2_Main, Scale, Scale);
bgSetScroll(Display_bg2_Main, ScrollX, ScrollY);
}
}
/*
DS_Timer1_IRQ
Called when TIMER0_DATA overflows.
*/
LOCALPROC DS_Timer1_IRQ(void)
{
TimerBaseMSec += 65536;
}
/*
DS_VBlank_IRQ
Vertical blank interrupt callback.
*/
LOCALPROC DS_VBlank_IRQ(void)
{
scanKeys();
KeysHeld = keysHeld();
if (++VBlankCounter == 60) {
VBlankCounter = 0;
}
/*
TODO:
Rewrite this at some point, I'm not sure I like it.
*/
if (0 != (KeysHeld & KEY_LEFT)) {
--CursorX;
} else if (0 != (KeysHeld & KEY_RIGHT)) {
++CursorX;
}
if (0 != (KeysHeld & KEY_UP)) {
--CursorY;
} else if (0 != (KeysHeld & KEY_DOWN)) {
++CursorY;
}
CursorX = CursorX < 0 ? 0 : CursorX;
CursorX = CursorX > vMacScreenWidth ? vMacScreenWidth : CursorX;
CursorY = CursorY < 0 ? 0 : CursorY;
CursorY = CursorY > vMacScreenHeight ? vMacScreenHeight : CursorY;
DS_ScrollBackground();
bgUpdate();
}
/*
DS_HBlank_IRQ
Called at the start of the horizontal blanking period.
This is here mainly as a simple performance test.
*/
LOCALPROC DS_HBlank_IRQ(void)
{
++HBlankCounter;
}
/*
DS_SysInit
Initializes DS specific system hardware and interrupts.
*/
LOCALPROC DS_SysInit(void)
{
defaultExceptionHandler();
powerOn(POWER_ALL_2D);
lcdMainOnTop();
irqSet(IRQ_VBLANK, DS_VBlank_IRQ);
irqSet(IRQ_HBLANK, DS_HBlank_IRQ);
irqSet(IRQ_TIMER1, DS_Timer1_IRQ);
irqEnable(IRQ_VBLANK);
irqEnable(IRQ_HBLANK);
irqEnable(IRQ_TIMER1);
/*
This sets up 2 timers as a milisecond counter.
TIMER0_DATA Will overflow roughly every 1 msec into TIMER1_DATA.
When TIMER1_DATA overflows an interrupt will be generated
and DS_Timer1_IRQ will be called.
*/
TIMER0_DATA = 32768;
TIMER0_CR = TIMER_DIV_1 | TIMER_ENABLE;
TIMER1_DATA = 0;
TIMER1_CR = TIMER_ENABLE | TIMER_CASCADE | TIMER_IRQ_REQ;
/*
Testing.
*/
consoleDemoInit();
consoleDebugInit(DebugDevice_NOCASH);
/*
Use the default keyboard until I design a (good) UI...
*/
DSKeyboard = keyboardDemoInit();
keyboardShow();
/*
Drop back to a read only filesystem embedded in the
Mini vMac binary if we cannot open a media device.
*/
if (! fatInitDefault()) {
nitroFSInit();
}
}
/*
DS_ClearVRAM:
Make sure all of the video memory and background/object palettes
are zeroed out just in-case the loader doesn't do it for us.
*/
LOCALPROC DS_ClearVRAM(void)
{
vramSetPrimaryBanks(VRAM_A_LCD, VRAM_B_LCD, VRAM_C_LCD, VRAM_D_LCD);
dmaFillWords(0, (void *) VRAM_A, 128 * 1024 * 4);
dmaFillWords(0, (void *) BG_PALETTE, 256 * 2);
dmaFillWords(0, (void *) BG_PALETTE_SUB, 256 * 2);
dmaFillWords(0, (void *) SPRITE_PALETTE, 256 * 2);
dmaFillWords(0, (void *) SPRITE_PALETTE_SUB, 256 * 2);
vramDefault();
}
/* --- platform independent code can be thought of as going here --- */
#include "PROGMAIN.h"
LOCALPROC ReserveAllocAll(void)
{
#if dbglog_HAVE
dbglog_ReserveAlloc();
#endif
ReserveAllocOneBlock(&ROM, kROM_Size, 5, falseblnr);
ReserveAllocOneBlock(&screencomparebuff,
vMacScreenNumBytes, 5, trueblnr);
#if UseControlKeys
ReserveAllocOneBlock(&CntrlDisplayBuff,
vMacScreenNumBytes, 5, falseblnr);
#endif
#if MySoundEnabled
ReserveAllocOneBlock((ui3p *)&TheSoundBuffer,
dbhBufferSize, 5, falseblnr);
#endif
EmulationReserveAlloc();
}
LOCALFUNC blnr AllocMyMemory(void)
{
uimr n;
blnr IsOk = falseblnr;
ReserveAllocOffset = 0;
ReserveAllocBigBlock = nullpr;
ReserveAllocAll();
n = ReserveAllocOffset;
ReserveAllocBigBlock = (ui3p)calloc(1, n);
if (NULL == ReserveAllocBigBlock) {
MacMsg(kStrOutOfMemTitle, kStrOutOfMemMessage, trueblnr);
} else {
ReserveAllocOffset = 0;
ReserveAllocAll();
if (n != ReserveAllocOffset) {
/* oops, program error */
} else {
IsOk = trueblnr;
}
}
return IsOk;
}
LOCALPROC UnallocMyMemory(void)
{
if (nullpr != ReserveAllocBigBlock) {
free((char *)ReserveAllocBigBlock);
}
}
LOCALPROC ZapOSGLUVars(void)
{
InitDrives();
DS_ClearVRAM();
}
LOCALFUNC blnr InitOSGLU(void)
{
DS_SysInit();
if (AllocMyMemory())
#if dbglog_HAVE
if (dbglog_open())
#endif
if (LoadMacRom())
if (LoadInitialImages())
if (InitLocationDat())
#if MySoundEnabled
if (MySound_Init())
#endif
if (Screen_Init())
if (KC2MKCInit())
if (WaitForRom())
{
return trueblnr;
}
return falseblnr;
}
LOCALPROC UnInitOSGLU(void)
{
if (MacMsgDisplayed) {
MacMsgDisplayOff();
}
#if MySoundEnabled
MySound_Stop();
#endif
#if MySoundEnabled
MySound_UnInit();
#endif
UnInitDrives();
#if dbglog_HAVE
dbglog_close();
#endif
UnallocMyMemory();
CheckSavedMacMsg();
}
int main(int argc, char **argv)
{
ZapOSGLUVars();
if (InitOSGLU()) {
iprintf("Entering ProgramMain...\n");
ProgramMain();
iprintf("Leaving ProgramMain...\n");
}
UnInitOSGLU();
/*
On some homebrew launchers this could return to
the menu by default.
*/
exit(1);
while (1) {
swiWaitForVBlank();
}
return 0;
}