fish/surf/scrnio.c

   1 /* main program */
   2
   3 #include <aros/oldprograms.h>
   4 #include "scrnio.ih"
   5 #ifdef MANX
   6 #include <functions.h>
   7 #endif /* MANX */
   8
   9 #include "scrndef.h"
  10 #include "scrnio.h"
  11 #include "gadgetdef.h"
  12 #include "menudef.h"
  13
  14 struct Screen *SurfScrn = NULL;
  15 struct Window *SurfWin = NULL;
  16 struct Window *CntrlWin = NULL;
  17 struct Window *GadWin = NULL;
  18 /*
  19  * bit masks for waiting for signals
  20  */
  21 short CntrlSigBit, SurfSigBit, GadSigBit;
  22 long SignalMask = 0;
  23
  24 struct RastPort *rp;
  25 struct ViewPort *vp;
  26
  27 struct GfxBase *GfxBase = 0;
  28 struct IntuitionBase *IntuitionBase = 0;
  29
  30 void OutErr(char *);
  31 void MenuSetColMap();
  32 void MenuSetScrn();
  33
  34 int XOR = COMPLEMENT, /* so my other modules don't need to */
  35     WRITE = JAM1;     /* include so many amiga includes */
  36
  37 int WinHOrig, WinVOrig;
  38 int WinFgCol;
  39 int ColorMax;
  40 int NumColors;
  41
  42 /*
  43  * data structures needed to use amiga polygons routines
  44  */
  45 static WORD PolyArea[5*5];
  46 static struct AreaInfo PolyInfo;
  47 static PLANEPTR PolyWorkSpace;
  48 static struct TmpRas PolyTmpRas;
  49
  50
  51
  52 static void ResetWinDat() {
  53
  54     WinHOrig = SurfWinDef.Width >>1;
  55     WinVOrig = SurfWinDef.Height >>1;
  56
  57
  58     rp = SurfWin->RPort;
  59     SetDrMd( rp,  JAM1 );
  60 }
  61
  62
  63
  64 /*
  65  * open surface window/screen
  66  */
  67 void OpenSurf() {
  68     NumColors = 1 << SurfScrnDef.Depth;
  69     ColorMax = ( NumColors -1) * DitherLevels + 1;
  70     WinFgCol = (NumColors - 1) & 0x1f;
  71
  72     SurfScrnDef.BlockPen = ( WinFgCol *3) /4;
  73     SurfScrnDef.DetailPen = WinFgCol>>2;
  74
  75     SurfScrn = OpenScreen( &SurfScrnDef );
  76     MenuSetColMap();
  77     SurfWinDef.Screen = GadWinDef.Screen = SurfScrn;
  78     SurfWinDef.Width = GadWinDef.Width = SurfScrnDef.Width;
  79     SurfWinDef.Height = SurfScrnDef.Height - ButHeight;
  80
  81     SurfWin = OpenWindow( &SurfWinDef );
  82     GadWin = OpenWindow( &GadWinDef );
  83     SurfSigBit = SurfWin->UserPort->mp_SigBit;
  84     GadSigBit = GadWin->UserPort->mp_SigBit;
  85     SignalMask = (1<<CntrlSigBit) | (1<<SurfSigBit)| (1<<GadSigBit);
  86
  87     ResetWinDat();
  88     ShowTitle( SurfScrn, 0L ); /* hide screen title behind backdrop */
  89
  90     InitArea( &PolyInfo, PolyArea, 5);
  91     rp->AreaInfo = &PolyInfo;
  92
  93     PolyWorkSpace = AllocRaster( SurfWinDef.Width, SurfWinDef.Height);
  94
  95     if( !PolyWorkSpace ) {
  96         CloseDisplay();
  97         OutErr("no space for temporary rastern");
  98         exit(0);
  99     }
 100     else {
 101         InitTmpRas( &PolyTmpRas, PolyWorkSpace,
 102                     RASSIZE( SurfWinDef.Width, SurfWinDef.Height ));
 103         rp->TmpRas = &PolyTmpRas;
 104     }
 105 }
 106
 107
 108 void InitWindow()
 109 {
 110     GfxBase = (struct GfxBase *)OpenLibrary("graphics.library",0);
 111     if( GfxBase == 0 ) {
 112         OutErr("graphics library won't open");
 113         exit(10);
 114     }
 115
 116     IntuitionBase = (struct IntuitionBase *)OpenLibrary("intuition.library",0);
 117     if( IntuitionBase == 0 ) {
 118         OutErr("intuition library won't open");
 119         exit(10);
 120     }
 121
 122     InitGadgets();
 123     CntrlWin = OpenWindow( &CntrlWinDef );
 124     CntrlSigBit = CntrlWin->UserPort->mp_SigBit;
 125
 126     MenuSetScrn();
 127
 128     if( !SurfScrn || !SurfWin || !CntrlWin ) {
 129         OutErr("couldn't open at least one window or screen");
 130         CloseDisplay();
 131         exit( 0 );
 132     }
 133
 134     SetMenuStrip(CntrlWin, menu );
 135 }
 136
 137
 138 /*
 139  * remove surface window/screen
 140  */
 141 void CloseSurf() {
 142
 143     if( PolyWorkSpace)
 144         FreeRaster( PolyWorkSpace, SurfWinDef.Width, SurfWinDef.Height );
 145
 146     if( SurfWin )
 147         CloseWindow( SurfWin );
 148
 149     if( GadWin )
 150         CloseWindow( GadWin );
 151
 152     if( SurfScrn )
 153         CloseScreen( SurfScrn );
 154 }
 155
 156
 157 void CloseDisplay()
 158 {
 159
 160     CloseSurf();
 161
 162
 163     if( CntrlWin ) {
 164         ClearMenuStrip( CntrlWin );
 165         CloseWindow( CntrlWin );
 166     }
 167
 168     EndGadgets();
 169
 170     if ( IntuitionBase )
 171         CloseLibrary((struct Library *)IntuitionBase);
 172
 173     if ( GfxBase )
 174         CloseLibrary((struct Library *)GfxBase);
 175 }
 176
 177