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Retro68
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build C version of raytracer without using c stdlib

This commit is contained in:
Wolfgang Thaller 2017-04-21 18:01:43 +02:00
parent 6e54d4c229
commit a919b6f1af
1 changed files with 6 additions and 9 deletions
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15
Samples/Raytracer/raytracer.c
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@ -38,10 +38,7 @@
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <stdio.h>
pascal /* <- pascal calling convention, for no reason in particular except to test the comppiler */
bool hitSphere(float x0, float y0, float z0, float dx, float dy, float dz, float *t)
@ -195,7 +192,7 @@ int main()
lxn = lx*lenl, lyn = ly*lenl, lzn = lz*lenl;
long startTime = TickCount();
float *accumV = calloc(sizeof(float), r.right);
float *accumV = (float*)NewPtrClear(sizeof(float) * r.right);
for(y = 0; y < r.bottom; y++)
{
for(x = 0; x < r.right; x++)
@ -263,17 +260,17 @@ int main()
}
long endTime = TickCount();
char buf[256];
unsigned char* pstr = (unsigned char*)buf;
sprintf(buf+1, "pps = %d", (int)( (float)r.right * r.bottom / (endTime - startTime) * 60.0f ));
buf[0] = strlen(buf+1);
Str255 pstr;
NumToString( (long)( (float)r.right * r.bottom / (endTime - startTime) * 60.0f ),
pstr );
SetRect(&r, 10, 10, 10 + StringWidth(pstr) + 10, 30);
SetRect(&r, 10, 10, 10 + StringWidth("\ppps = ") + StringWidth(pstr) + 10, 30);
PaintRect(&r);
PenMode(patXor);
FrameRect(&r);
MoveTo(15,25);
TextMode(srcBic);
DrawString("\ppps = ");
DrawString(pstr);
#if TARGET_API_MAC_CARBON
QDFlushPortBuffer(GetWindowPort(win),NULL);