view Xcode-iPhoneOS/Demos/src/common.c @ 3495:1b22878e04d0

Adam Strzelecki to SDL D3D renderer shall try mapping YV12 and I420 (IYUV) to D3D texture formats via FOURCC. This will enable HW acceleration for those formats when driver is capable (most of them are). Note that SDL's IYUV maps I420 FOURCC on Woe.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 27 Nov 2009 03:11:26 +0000
parents 20326ba2bda2
children
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/*
 *	common.c
 *	written by Holmes Futrell
 *	use however you want
 */

#include "common.h"
#include "SDL.h"
#include <stdlib.h>

/*
	Produces a random int x, min <= x <= max 
	following a uniform distribution
*/
int
randomInt(int min, int max)
{
    return min + rand() % (max - min + 1);
}

/*
	Produces a random float x, min <= x <= max 
	following a uniform distribution
 */
float
randomFloat(float min, float max)
{
    return rand() / (float) RAND_MAX *(max - min) + min;
}

void
fatalError(const char *string)
{
    printf("%s: %s\n", string, SDL_GetError());
    exit(1);
}