Attachment 3097 Details for Bug 3822 – Standalone testcase for the fbBlt() bug; link with /usr/X11R6/lib/modules/libfb.a

Standalone testcase for the fbBlt() bug; link with /usr/X11R6/lib/modules/libfb.a

blt.c (text/plain), 1.30 KB, created by Mark Kettenis on 2005-08-29 00:36:45 UTC

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Creator: Mark Kettenis

Created: 2005-08-29 00:36:45 UTC

Size: 1.30 KB

patch

obsolete

>/*	$OpenBSD$	*/
>/*
> *	Written by Mark Kettenis <kettenis@openbsd.org> 2004 Public Domain
> */
>
>#include <sys/types.h>
>#include <sys/mman.h>
>
>#include <assert.h>
>#include <stddef.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);
>
>	dst = mmap(NULL, 2 * pagesize, PROT_READ|PROT_WRITE, MAP_ANON, -1, 0);
>	assert(dst);
>
>	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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Attachments on bug 3822: 2877 | 2878 | 3097 | 3098

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