179 lines
3.9 KiB
C++
179 lines
3.9 KiB
C++
/******************************Module*Header*******************************\
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* Module Name: util.cxx
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*
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* Misc. utility functions
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*
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* Copyright (c) 1996 Microsoft Corporation
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*
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\**************************************************************************/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <windows.h>
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#include <GL/gl.h>
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#include <sys/types.h>
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#include <sys/timeb.h>
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#include <time.h>
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#include <math.h>
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#include "mtk.h"
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#include "util.hxx"
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// Debug util stuff
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#if DBG
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#define SS_DEBUG 1
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#ifdef SS_DEBUG
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long ssDebugMsg = 1;
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long ssDebugLevel = SS_LEVEL_INFO;
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#else
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long ssDebugMsg = 0;
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long ssDebugLevel = SS_LEVEL_ERROR;
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#endif
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#endif
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/******************************Public*Routine******************************\
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* ss_Rand
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*
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* Generates integer random number 0..(max-1)
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*
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\**************************************************************************/
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int ss_iRand( int max )
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{
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return (int) ( max * ( ((float)rand()) / ((float)(RAND_MAX+1)) ) );
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}
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/******************************Public*Routine******************************\
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* ss_Rand2
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*
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* Generates integer random number min..max
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*
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\**************************************************************************/
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int ss_iRand2( int min, int max )
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{
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if( min == max )
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return min;
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else if( max < min ) {
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int temp = min;
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min = max;
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max = temp;
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}
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return min + (int) ( (max-min+1) * ( ((float)rand()) / ((float)(RAND_MAX+1)) ) );
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}
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/******************************Public*Routine******************************\
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* ss_fRand
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*
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* Generates float random number min...max
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*
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\**************************************************************************/
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FLOAT ss_fRand( FLOAT min, FLOAT max )
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{
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FLOAT diff;
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diff = max - min;
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return min + ( diff * ( ((float)rand()) / ((float)(RAND_MAX)) ) );
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}
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/******************************Public*Routine******************************\
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* ss_RandInit
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*
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* Initializes the randomizer
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*
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\**************************************************************************/
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void ss_RandInit( void )
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{
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struct _timeb time;
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_ftime( &time );
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srand( time.millitm );
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for( int i = 0; i < 10; i ++ )
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rand();
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}
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/******************************Public*Routine******************************\
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* mtkQuit
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*
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* Harsh way to kill the app, just exits the process, no cleanup done
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*
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\**************************************************************************/
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void
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mtkQuit()
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{
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ExitProcess( 0 );
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}
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/******************************Public*Routine******************************\
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* mtk_ChangeDisplaySettings
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*
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* Try changing display settings.
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* If bitDepth is 0, use current bit depth
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*
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\**************************************************************************/
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BOOL
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mtk_ChangeDisplaySettings( int width, int height, int bitDepth )
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{
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int change;
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DEVMODE dm = {0};
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dm.dmSize = sizeof(dm);
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dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT;
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dm.dmPelsWidth = width;
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dm.dmPelsHeight = height;
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if( bitDepth != 0 ) {
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dm.dmFields |= DM_BITSPERPEL;
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dm.dmBitsPerPel = bitDepth;
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}
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change = ChangeDisplaySettings(&dm, CDS_FULLSCREEN);
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if( change == DISP_CHANGE_SUCCESSFUL )
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return TRUE;
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else
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return FALSE;
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}
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void
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mtk_RestoreDisplaySettings()
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{
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ChangeDisplaySettings(NULL, CDS_FULLSCREEN);
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}
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#if DBG
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/******************************Public*Routine******************************\
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* DbgPrint
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*
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* Formatted string output to the debugger.
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*
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* History:
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* 26-Jan-1996 -by- Gilman Wong [gilmanw]
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* Wrote it.
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\**************************************************************************/
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ULONG
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DbgPrint(PCH DebugMessage, ...)
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{
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va_list ap;
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char buffer[256];
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va_start(ap, DebugMessage);
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vsprintf(buffer, DebugMessage, ap);
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OutputDebugStringA(buffer);
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va_end(ap);
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return(0);
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}
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#endif
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