1 line
20 KiB
C
Executable File
1 line
20 KiB
C
Executable File
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//============================================================================
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//----------------------------------------------------------------------------
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// Environ.c
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//----------------------------------------------------------------------------
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//============================================================================
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#include <LowMem.h>
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#include <Gestalt.h>
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#include <NumberFormatting.h>
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#include <Sound.h>
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#include "Externs.h"
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#include "Environ.h"
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#include <Palettes.h>
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#define kSwitchDepthAlert 130
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#define kSetMemoryAlert 180
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#define kLowMemoryAlert 181
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#define kWNETrap 0x60
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#define kSetDepthTrap 0xA2
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#define kUnimpTrap 0x9F
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#define kGestaltTrap 0xAD
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#define kDisplay9Inch 1
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#define kDisplay12Inch 2
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#define kDisplay13Inch 3
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typedef struct
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{
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short flags;
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long mem1;
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long mem2;
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} sizeType;
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//short GetThisVolumeRefNum (void);
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//long GetThisCurrentDirectoryID (void);
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//Boolean TrapExists (short);
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//Boolean DoWeHaveGestalt (void);
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//Boolean DoWeHaveWNE (void);
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//Boolean DoWeHaveColor (void);
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//Boolean DoWeHaveSystem602 (void);
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//Boolean DoWeHaveSystem605 (void);
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//Boolean DoWeHaveSystem7 (void);
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//Boolean DoWeHaveSoundManager3 (void);
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Boolean DoWeHaveQuickTime (void);
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Boolean DoWeHaveDragManager (void);
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Boolean CanWeDisplay8Bit (GDHandle);
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//Boolean CanWeDisplay4Bit (GDHandle);
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//Boolean CanWeDisplay1Bit (GDHandle);
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short HowManyUsableScreens (Boolean, Boolean, Boolean);
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void GetDeviceRect (Rect *);
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Boolean AreWeColorOrGrayscale (void);
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void SwitchDepthOrAbort (void);
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macEnviron thisMac;
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extern GDHandle thisGDevice;
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extern short isDepthPref;
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extern Boolean dontLoadMusic, dontLoadSounds;
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//============================================================== Functions
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//-------------------------------------------------------------- GetThisVolumeRefNum
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// Get a hard reference number for the current drive volume this app is on.
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/*
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short GetThisVolumeRefNum (void)
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{
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OSErr theErr;
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short vRef;
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theErr = GetVol(nil, &vRef);
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return (vRef);
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}
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*/
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//-------------------------------------------------------------- GetThisCurrentDirectoryID
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// Get a hard ID number for the current directory volume this app is in.
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/*
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long GetThisCurrentDirectoryID (void)
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{
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long dirID;
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dirID = LMGetCurDirStore();
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return (dirID);
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}
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*/
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//-------------------------------------------------------------- TrapExists
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// Returns whether or not a ToolBox trap exists for the users ROMs/System.
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/*
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Boolean TrapExists (short trapNumber)
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{
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return ((NGetTrapAddress(trapNumber, ToolTrap) !=
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NGetTrapAddress(kUnimpTrap, ToolTrap)));
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}
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*/
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//-------------------------------------------------------------- DoWeHaveGestalt
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// Specifically tests for the availablity of the Gestalt() trap.
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/*
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Boolean DoWeHaveGestalt (void)
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{
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return (TrapExists(kGestaltTrap));
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}
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*/
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//-------------------------------------------------------------- DoWeHaveWNE
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// Specifically tests for the availablity of the WaitNextEvent() trap.
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/*
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Boolean DoWeHaveWNE (void)
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{
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return (TrapExists(kWNETrap));
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}
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*/
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//-------------------------------------------------------------- DoWeHaveColor
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// Determines if ROMs support Color QuickDraw (monitor not neccessarily color).
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/*
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Boolean DoWeHaveColor (void)
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{
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SysEnvRec thisWorld;
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SysEnvirons(2, &thisWorld);
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return (thisWorld.hasColorQD);
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}
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*/
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//-------------------------------------------------------------- DoWeHaveSystem602
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// Determines if the System version is at least 6.0.2 or more recent.
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/*
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Boolean DoWeHaveSystem602 (void)
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{
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SysEnvRec thisWorld;
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Boolean haveIt;
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SysEnvirons(2, &thisWorld);
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if (thisWorld.systemVersion >= 0x0602)
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haveIt = true;
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else
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haveIt = false;
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return (haveIt);
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}
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*/
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//-------------------------------------------------------------- DoWeHaveSystem605
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// Determines if the System version is at least 6.0.5 or more recent.
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/*
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Boolean DoWeHaveSystem605 (void)
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{
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SysEnvRec thisWorld;
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Boolean haveIt;
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SysEnvirons(2, &thisWorld);
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if (thisWorld.systemVersion >= 0x0605)
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haveIt = true;
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else
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haveIt = false;
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return (haveIt);
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}
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/
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//-------------------------------------------------------------- DoWeHaveSystem7
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// Determines if the System version is at least 7.0.0 or more recent.
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Boolean DoWeHaveSystem7 (void)
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{
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SysEnvRec thisWorld;
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Boolean haveIt;
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SysEnvirons(2, &thisWorld);
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if (thisWorld.systemVersion >= 0x0700)
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haveIt = true;
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else
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haveIt = false;
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return (haveIt);
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}
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//-------------------------------------------------------------- DoWeHaveSoundManager3
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// Determines if the Sound Manager version is at least 3.0.0 or more recent.
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/*
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Boolean DoWeHaveSoundManager3 (void)
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{
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// NumVersion version;
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Boolean hasIt;
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hasIt = true;
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version = SndSoundManagerVersion();
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hasIt = (version.majorRev >= 3);
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return hasIt;
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}
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*/
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//-------------------------------------------------------------- DoWeHaveQuickTime
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Boolean DoWeHaveQuickTime (void)
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{
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long theResponse;
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OSErr theErr;
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Boolean haveIt;
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theErr = Gestalt(gestaltQuickTime, &theResponse);
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if (theErr == noErr)
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haveIt = true;
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else
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haveIt = false;
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return (haveIt);
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}
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//-------------------------------------------------------------- DoWeHaveDragManager
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Boolean DoWeHaveDragManager (void)
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{
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long theResponse;
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OSErr theErr;
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Boolean haveIt;
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theErr = Gestalt(gestaltDragMgrAttr, &theResponse);
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if ((theErr == noErr) && ((theResponse & (1L << gestaltDragMgrPresent)) != 0))
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haveIt = true;
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else
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haveIt = false;
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return (haveIt);
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}
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//-------------------------------------------------------------- WhatsOurDepth
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// Determines the pixel bit depth for current device (monitor).
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short WhatsOurDepth (void)
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{
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short thisDepth;
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char wasState;
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if (thisMac.hasColor)
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{
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if (thisGDevice != nil)
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{
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wasState = HGetState((Handle)thisGDevice);
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HLock((Handle)thisGDevice);
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thisDepth = (**(**thisGDevice).gdPMap).pixelSize;
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HSetState((Handle)thisGDevice, wasState);
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}
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else
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RedAlert(kErrUnnaccounted);
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}
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else
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thisDepth = 1;
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return (thisDepth);
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}
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//-------------------------------------------------------------- CanWeDisplay8Bit
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// Determines if device (monitor) capable of supporting 8 bit (256 colors/grays).
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Boolean CanWeDisplay8Bit (GDHandle theDevice)
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{
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short canDepth;
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Boolean canDo;
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canDo = false;
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canDepth = HasDepth(theDevice, 8, 1, 0);
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if (canDepth != 0)
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canDo = true;
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return (canDo);
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}
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//-------------------------------------------------------------- CanWeDisplay4Bit
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// Determines if device (monitor) capable of supporting 4 bit (16 colors/grays).
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/*
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Boolean CanWeDisplay4Bit (GDHandle theDevice)
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{
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short canDepth;
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Boolean canDo;
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canDo = false;
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canDepth = HasDepth(theDevice, 4, 1, 0);
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if (canDepth != 0)
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canDo = true;
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return (canDo);
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}
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*/
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//-------------------------------------------------------------- CanWeDisplay1Bit
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// Determines if device (monitor) capable of supporting 1 bit (black & white).
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/*
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Boolean CanWeDisplay1Bit (GDHandle theDevice)
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{
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short canDepth;
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Boolean canDo;
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canDo = false;
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canDepth = HasDepth(theDevice, 1, 1, 0);
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if (canDepth != 0)
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canDo = true;
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return (canDo);
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}
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*/
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//-------------------------------------------------------------- HowManyUsableScreens
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// Counts the number of monitors that meet the depth criteria passed in.
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short HowManyUsableScreens (Boolean use1Bit, Boolean use4Bit, Boolean use8Bit)
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{
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GDHandle tempGDevice;
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short count;
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count = 0;
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tempGDevice = GetDeviceList();
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while (tempGDevice != nil)
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{
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if (TestDeviceAttribute(tempGDevice, screenDevice))
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{
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// if ((use1Bit && CanWeDisplay1Bit(tempGDevice)) ||
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// (use4Bit && CanWeDisplay4Bit(tempGDevice)) ||
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// (use8Bit && CanWeDisplay8Bit(tempGDevice)))
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count = count + 1;
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}
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tempGDevice = GetNextDevice(tempGDevice);
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}
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return (count);
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}
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//-------------------------------------------------------------- GetDeviceRect
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// Returns the bounding rectangle for the current device (monitor).
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void GetDeviceRect (Rect *theRect)
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{
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char wasState;
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wasState = HGetState((Handle)thisGDevice);
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HLock((Handle)thisGDevice);
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*theRect = (*thisGDevice)->gdRect;
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HSetState((Handle)thisGDevice, wasState);
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}
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//-------------------------------------------------------------- AreWeColorOrGrayscale
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// Determines if the current device (monitor) is in colors or grayscale.
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Boolean AreWeColorOrGrayscale (void)
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{
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char wasState;
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Boolean colorOrGray;
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wasState = HGetState((Handle)thisGDevice);
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HLock((Handle)thisGDevice);
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colorOrGray = (**thisGDevice).gdFlags & 0x0001;
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HSetState((Handle)thisGDevice, wasState);
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if (thisMac.hasColor)
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{
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wasState = HGetState((Handle)thisGDevice);
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HLock((Handle)thisGDevice);
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colorOrGray = (**thisGDevice).gdFlags & 0x0001;
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HSetState((Handle)thisGDevice, wasState);
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return (colorOrGray);
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}
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else
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return (false);
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}
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//-------------------------------------------------------------- SwitchToDepth
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// Switches the current device (monitor) to a specific bit depth.
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void SwitchToDepth (short newDepth, Boolean doColor)
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{
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OSErr theErr;
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short colorFlag;
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char tagByte;
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if (doColor)
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colorFlag = 1;
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else
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colorFlag = 0;
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if (thisGDevice != nil)
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{
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tagByte = HGetState((Handle)thisGDevice);
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HLock((Handle)thisGDevice);
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theErr = SetDepth(thisGDevice, newDepth, 1, colorFlag);
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HSetState((Handle)thisGDevice, tagByte);
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if (theErr != noErr)
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RedAlert(kErrUnnaccounted);
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else
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thisMac.isDepth = newDepth;
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}
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else
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RedAlert(kErrUnnaccounted);
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}
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//-------------------------------------------------------------- SwitchDepthOrAbort
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// Brings up a dialog allowing user to select bit depth or exit to shell.
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void SwitchDepthOrAbort (void)
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{
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short usersDecision;
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if (thisMac.canSwitch)
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{
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InitCursor();
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// CenterAlert(kSwitchDepthAlert);
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usersDecision = Alert(kSwitchDepthAlert, nil);
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switch (usersDecision)
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{
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case 1:
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SwitchToDepth(8, true);
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break;
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case 2:
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SwitchToDepth(4, false);
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break;
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case 3:
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ExitToShell();
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break;
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}
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}
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else
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RedAlert(kErrUnnaccounted);
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}
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//-------------------------------------------------------------- CheckOurEnvirons
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// Calls all the above functions in order to fill out a sort of "spec sheet"<22>
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// for the current Mac.
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void CheckOurEnvirons (void)
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{
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RgnHandle grayRegion;
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char wasState;
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thisMac.thisResFile = CurResFile();
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thisMac.vRefNum = 0; // TEMP
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thisMac.dirID = 0; // TEMP
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thisMac.hasGestalt = true; // TEMP
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thisMac.hasWNE = true; // TEMP
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thisMac.hasColor = true; // TEMP
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thisMac.canSwitch = true; // TEMP
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thisMac.hasSystem7 = true; // TEMP
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thisMac.hasSM3 = true; // TEMP
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thisMac.hasQT = DoWeHaveQuickTime();
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thisMac.hasDrag = DoWeHaveDragManager();
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FindOurDevice();
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wasState = HGetState((Handle)thisGDevice);
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HLock((Handle)thisGDevice);
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thisMac.can1Bit = true;
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thisMac.can4Bit = true;
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thisMac.can8Bit = true;
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HSetState((Handle)thisGDevice, wasState);
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thisMac.numScreens = HowManyUsableScreens(false, true, true);
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GetDeviceRect(&thisMac.screen);
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thisMac.wasDepth = WhatsOurDepth();
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thisMac.wasColorOrGray = AreWeColorOrGrayscale();
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grayRegion = GetGrayRgn();
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(void) GetRegionBounds(grayRegion, &(thisMac.gray));
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}
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//-------------------------------------------------------------- ReflectMonitor2Environs
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// Tests second monitor (if available) for specific bit depth capabilities.
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/*
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void ReflectSecondMonitorEnvirons (Boolean use1Bit, Boolean use4Bit, Boolean use8Bit)
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{
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GDHandle tempGDevice;
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tempGDevice = GetDeviceList();
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while (tempGDevice != nil)
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{
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if (TestDeviceAttribute(tempGDevice, screenDevice))
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if ((use1Bit && CanWeDisplay1Bit(tempGDevice)) ||
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(use4Bit && CanWeDisplay4Bit(tempGDevice)) ||
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(use8Bit && CanWeDisplay8Bit(tempGDevice)))
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if (!TestDeviceAttribute(tempGDevice, mainScreen))
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{
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thisGDevice = tempGDevice;
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thisMac.can1Bit = CanWeDisplay1Bit(thisGDevice);
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thisMac.can4Bit = CanWeDisplay4Bit(thisGDevice);
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thisMac.can8Bit = CanWeDisplay8Bit(thisGDevice);
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thisMac.wasDepth = WhatsOurDepth();
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thisMac.wasColorOrGray = AreWeColorOrGrayscale();
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GetDeviceRect(&thisMac.screen);
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break;
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}
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tempGDevice = GetNextDevice(tempGDevice);
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}
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}
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*/
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//-------------------------------------------------------------- HandleDepthSwitching
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// Handles setting up a monitor's depth to play on.
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void HandleDepthSwitching (void)
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{
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if (thisMac.hasColor)
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{
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switch (isDepthPref)
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{
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case kSwitchIfNeeded:
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if ((thisMac.wasDepth != 8) &&
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((thisMac.wasDepth != 4) || (thisMac.wasColorOrGray)))
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SwitchDepthOrAbort();
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break;
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case kSwitchTo256Colors:
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if (thisMac.wasDepth != 8)
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{
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if (thisMac.can8Bit)
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SwitchToDepth(8, true);
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else
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SwitchDepthOrAbort();
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}
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break;
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case kSwitchTo16Grays:
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if ((thisMac.wasDepth != 4) || (thisMac.wasColorOrGray))
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{
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if (thisMac.can4Bit)
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SwitchToDepth(4, false);
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else
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SwitchDepthOrAbort();
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}
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break;
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default:
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break;
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}
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}
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thisMac.isDepth = WhatsOurDepth();
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}
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//-------------------------------------------------------------- RestoreColorDepth
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// Restores a monitor to its previous depth when we quit (if we changed it).
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void RestoreColorDepth (void)
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{
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if ((thisMac.hasColor) && ((thisMac.wasDepth != thisMac.isDepth) ||
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(thisMac.wasColorOrGray != AreWeColorOrGrayscale())))
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SwitchToDepth(thisMac.wasDepth, true);
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}
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//-------------------------------------------------------------- CheckMemorySize
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// Tests for a specific amount of memory available. If the required memory<72>
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// is not available, attempts to turn off various game features (music, etc.)<29>
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// in order to accomodate the constrained memory available.
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void CheckMemorySize (void)
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{
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#define kBaseBytesNeeded 614400L // 600K Base memory
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#define kPaddingBytes 204800L // 200K Padding
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long bytesNeeded, bytesAvail;
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long soundBytes, musicBytes;
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short hitWhat;
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Str255 sizeStr;
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dontLoadMusic = false;
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dontLoadSounds = false;
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bytesNeeded = kBaseBytesNeeded; // base memory
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soundBytes = SoundBytesNeeded(); // sound memory
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if (soundBytes <= 0L)
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RedAlert(kErrNoMemory);
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else
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bytesNeeded += soundBytes;
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musicBytes = MusicBytesNeeded(); // music memory
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if (musicBytes <= 0L)
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RedAlert(kErrNoMemory);
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else
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bytesNeeded += musicBytes;
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bytesNeeded += 4L * (long)thisMac.screen.bottom; // main screen
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bytesNeeded += (((long)houseRect.right - (long)houseRect.left) *
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((long)houseRect.bottom + 1 - (long)houseRect.top) *
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(long)thisMac.isDepth) / 8L; // work map
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bytesNeeded += 4L * (long)houseRect.bottom;
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bytesNeeded += (((long)houseRect.right - (long)houseRect.left) *
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((long)houseRect.bottom + 1 - (long)houseRect.top) *
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(long)thisMac.isDepth) / 8L; // back map
|
||
bytesNeeded += 4L * houseRect.bottom;
|
||
bytesNeeded += (((long)houseRect.right - (long)houseRect.left) * 21 *
|
||
(long)thisMac.isDepth) / 8L; // scoreboard map
|
||
bytesNeeded += (6396L * (long)thisMac.isDepth) / 8L; // more scoreboard
|
||
bytesNeeded += (32112L * (long)thisMac.isDepth) / 8L; // glider map
|
||
bytesNeeded += (32112L * (long)thisMac.isDepth) / 8L; // glider2 map
|
||
bytesNeeded += 32064L / 8L; // glider mask
|
||
bytesNeeded += (912L * (long)thisMac.isDepth) / 8L; // glider shadow
|
||
bytesNeeded += 864L / 8L; // shadow mask
|
||
bytesNeeded += (304L * (long)thisMac.isDepth) / 8L; // rubber bands
|
||
bytesNeeded += 288L / 8L; // bands mask
|
||
bytesNeeded += (19344L * (long)thisMac.isDepth) / 8L; // blower map
|
||
bytesNeeded += 19344L / 8L; // blower mask
|
||
bytesNeeded += (17856L * (long)thisMac.isDepth) / 8L; // furniture map
|
||
bytesNeeded += 17792L / 8L; // furniture mask
|
||
bytesNeeded += (33264L * (long)thisMac.isDepth) / 8L; // prizes map
|
||
bytesNeeded += 33176L / 8L; // prizes mask
|
||
bytesNeeded += (2904L * (long)thisMac.isDepth) / 8L; // points map
|
||
bytesNeeded += 2880L / 8L; // points mask
|
||
bytesNeeded += (1848L * (long)thisMac.isDepth) / 8L; // transport map
|
||
bytesNeeded += 1792L / 8L; // transport mask
|
||
bytesNeeded += (3360L * (long)thisMac.isDepth) / 8L; // switches map
|
||
bytesNeeded += (9144L * (long)thisMac.isDepth) / 8L; // lights map
|
||
bytesNeeded += 9072L / 8L; // lights mask
|
||
bytesNeeded += (21600L * (long)thisMac.isDepth) / 8L; // appliances map
|
||
bytesNeeded += 21520L / 8L; // appliances mask
|
||
bytesNeeded += (5600L * (long)thisMac.isDepth) / 8L; // toast map
|
||
bytesNeeded += 5568L / 8L; // toast mask
|
||
bytesNeeded += (1440L * (long)thisMac.isDepth) / 8L; // shredded map
|
||
bytesNeeded += 1400L / 8L; // shredded mask
|
||
bytesNeeded += (5784L * (long)thisMac.isDepth) / 8L; // balloon map
|
||
bytesNeeded += 5760L / 8L; // balloon mask
|
||
bytesNeeded += (9632L * (long)thisMac.isDepth) / 8L; // copter map
|
||
bytesNeeded += 9600L / 8L; // copter mask
|
||
bytesNeeded += (4928L * (long)thisMac.isDepth) / 8L; // dart map
|
||
bytesNeeded += 4864L / 8L; // dart mask
|
||
bytesNeeded += (2080L * (long)thisMac.isDepth) / 8L; // ball map
|
||
bytesNeeded += 2048L / 8L; // ball mask
|
||
bytesNeeded += (1168L * (long)thisMac.isDepth) / 8L; // drip map
|
||
bytesNeeded += 1152L / 8L; // drip mask
|
||
bytesNeeded += (1224L * (long)thisMac.isDepth) / 8L; // enemy map
|
||
bytesNeeded += 1188L / 8L; // enemy mask
|
||
bytesNeeded += (2064L * (long)thisMac.isDepth) / 8L; // fish map
|
||
bytesNeeded += 2048L / 8L; // fish mask
|
||
bytesNeeded += (8960L * (long)thisMac.isDepth) / 8L; // clutter map
|
||
bytesNeeded += 8832L / 8L; // clutter mask
|
||
bytesNeeded += (23040L * (long)thisMac.isDepth) / 8L; // support map
|
||
bytesNeeded += (4320L * (long)thisMac.isDepth) / 8L; // angel map
|
||
bytesNeeded += 4224L / 8L; // angel mask
|
||
bytesNeeded += sizeof(roomType);
|
||
bytesNeeded += sizeof(hotObject) * kMaxHotSpots;
|
||
bytesNeeded += sizeof(sparkleType) * kMaxSparkles;
|
||
bytesNeeded += sizeof(flyingPtType) * kMaxFlyingPts;
|
||
bytesNeeded += sizeof(flameType) * kMaxCandles;
|
||
bytesNeeded += sizeof(flameType) * kMaxTikis;
|
||
bytesNeeded += sizeof(flameType) * kMaxCoals;
|
||
bytesNeeded += sizeof(pendulumType) * kMaxPendulums;
|
||
bytesNeeded += sizeof(savedType) * kMaxSavedMaps;
|
||
bytesNeeded += sizeof(bandType) * kMaxRubberBands;
|
||
bytesNeeded += sizeof(greaseType) * kMaxGrease;
|
||
bytesNeeded += sizeof(starType) * kMaxStars;
|
||
bytesNeeded += sizeof(shredType) * kMaxShredded;
|
||
bytesNeeded += sizeof(dynaType) * kMaxDynamicObs;
|
||
bytesNeeded += sizeof(objDataType) * kMaxMasterObjects;
|
||
bytesNeeded += kDemoLength; SpinCursor(1);
|
||
|
||
bytesAvail = FreeMem(); SpinCursor(1);
|
||
|
||
if (bytesAvail < bytesNeeded)
|
||
{
|
||
InitCursor();
|
||
if (bytesAvail >= (bytesNeeded - musicBytes))
|
||
{ // if we don't load the music we can run
|
||
TellHerNoMusic();
|
||
dontLoadMusic = true;
|
||
return;
|
||
}
|
||
else if (bytesAvail >= (bytesNeeded - (musicBytes + soundBytes)))
|
||
{ // if we don't load the music AND sounds, we can run
|
||
TellHerNoSounds();
|
||
dontLoadMusic = true;
|
||
dontLoadSounds = true;
|
||
return;
|
||
}
|
||
|
||
#ifdef COMPILEDEMO
|
||
// CenterAlert(kLowMemoryAlert);
|
||
NumToString((bytesNeeded + kPaddingBytes) / 1024L, sizeStr);
|
||
ParamText(sizeStr, "\p", "\p", "\p");
|
||
hitWhat = Alert(kLowMemoryAlert, nil);
|
||
#else
|
||
// CenterAlert(kSetMemoryAlert);
|
||
NumToString((bytesNeeded + kPaddingBytes) / 1024L, sizeStr);
|
||
ParamText(sizeStr, "\p", "\p", "\p");
|
||
hitWhat = Alert(kSetMemoryAlert, nil);
|
||
// SetAppMemorySize(bytesNeeded + kPaddingBytes);
|
||
#endif
|
||
ExitToShell();
|
||
}
|
||
}
|
||
|
||
//-------------------------------------------------------------- SetAppMemorySize
|
||
|
||
// Physically changes the 'SIZE' resource of the app so that when launched again,<2C>
|
||
// the Finder will give us enough memory to fully run the game (God, we hope!).
|
||
|
||
void SetAppMemorySize (long newSize)
|
||
{
|
||
Handle tempResource;
|
||
short oldResFile;
|
||
short i;
|
||
|
||
oldResFile = CurResFile();
|
||
UseResFile(thisMac.thisResFile);
|
||
|
||
for (i = 0; i < 2; i++)
|
||
{
|
||
tempResource = Get1Resource('SIZE', i);
|
||
if (tempResource != nil)
|
||
{
|
||
RemoveResource(tempResource);
|
||
if (ResError() != noErr)
|
||
DisposeHandle(tempResource);
|
||
}
|
||
}
|
||
|
||
tempResource = Get1Resource('SIZE', -1);
|
||
if (tempResource != nil)
|
||
{
|
||
HLock(tempResource);
|
||
((sizeType*)(*tempResource))->mem1 = newSize;
|
||
((sizeType*)(*tempResource))->mem2 = newSize;
|
||
ChangedResource(tempResource);
|
||
WriteResource(tempResource);
|
||
ReleaseResource(tempResource);
|
||
}
|
||
|
||
UpdateResFile(thisMac.thisResFile);
|
||
FlushVol(nil, 0);
|
||
UseResFile(oldResFile);
|
||
}
|
||
|