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/* $OpenBSD: blt.c,v 1.4 2017/02/25 07:28:32 jsg Exp $ */
/*
* Written by Mark Kettenis <kettenis@openbsd.org> 2004 Public Domain
*/
#include <sys/types.h>
#include <sys/mman.h>
#include <assert.h>
#include <stddef.h>
#include <string.h>
#include <unistd.h>
typedef unsigned FbStip;
typedef unsigned FbBits;
typedef int FbStride;
typedef int Bool;
extern void fbBlt (FbBits *, FbStride, int, FbBits *, FbStride, int,
int, int, int, FbBits, int, Bool, Bool);
FbBits map[] = { 0x77ff7700, 0x11335577 };
int
main (void)
{
int pagesize;
FbBits *src;
FbBits *dst;
int srcX, dstX;
int bpp;
int alu = 1;
FbBits pm = 0xffffffff;
pagesize = getpagesize();
src = mmap(NULL, 2 * pagesize, PROT_READ|PROT_WRITE, MAP_ANON, -1, 0);
assert(src != MAP_FAILED);
dst = mmap(NULL, 2 * pagesize, PROT_READ|PROT_WRITE, MAP_ANON, -1, 0);
assert(dst != MAP_FAILED);
mprotect((char *)src + pagesize, pagesize, PROT_NONE);
src = (FbBits *)((char *)src + (pagesize - sizeof map));
memcpy (src, map, sizeof map);
for (bpp = 8; bpp <= 32; bpp += 8)
for (dstX = 0; dstX < 64; dstX += bpp)
for (srcX = 0; srcX < 32; srcX += bpp)
fbBlt(src, 1, srcX, dst, 256, dstX,
(32 - srcX), 2, alu, pm, bpp, 0, 0);
for (bpp = 8; bpp <= 32; bpp += 8)
for (dstX = 0; dstX < 64; dstX += bpp)
for (srcX = 0; srcX < 32; srcX += bpp)
fbBlt(src, 1, srcX, dst, 256, dstX,
(64 - srcX), 1, alu, pm, bpp, 0, 0);
return 0;
}
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