1v13d/src/FxEngine/zbuffer.c

#include "zbuffer.h"
#include <stdbool.h>
#include <gint/display.h>
#include <gint/std/stdio.h>
#include <gint/std/stdlib.h>
#include <gint/keyboard.h>
static const int size_uint32 = 128*64;
static const int size_octets = size_uint32*sizeof(uint32_t);

static uint32_t* address=0;

void FE_zbuffer_clear()
{
	while (address==0)
	{
		address=malloc(size_octets);
		if (address==0)
		{
			dclear(C_WHITE);
			dtext(1,1,"Not enough RAM...",C_BLACK,C_NONE);
		}
	}
	uint32_t indice=0;
	// TODO ** ajouter le DMA pour les architectures sh4
	for (indice=0; indice<size_uint32; indice++)
		address[indice]=3000;
}

bool FE_zbuffer_set_dist(int x, int y, int dist)
{
	x%=FE_ZB_SIZE_X;
	y%=FE_ZB_SIZE_Y;
	const int indice=x*64+y;
	if (address[indice]>dist&&dist>0)
	{
		address[indice]=dist;
		return true;
	}
	else
		return false;
}