Hugin: Fix segfault on x86_64.
svn path=/nixpkgs/trunk/; revision=16340
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@ -9,6 +9,8 @@ stdenv.mkDerivation {
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sha256 = "0nbrvzz94gqgk2v1900lly101g0wjz4zksnh5718226n2g8zlccf";
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};
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patches = [ ./levmar-64-bit-alignment.patch ];
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NIX_CFLAGS_COMPILE = "-I${ilmbase}/include/OpenEXR";
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NIX_LDFLAGS = "-lrt";
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@ -0,0 +1,64 @@
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This patch fixes alignment issues on 64-bit machines. It was taken
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from http://www.mail-archive.com/hugin-ptx@googlegroups.com/msg02976.html .
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See also http://thread.gmane.org/gmane.linux.distributions.nixos/2352 .
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--- hugin/src/foreign/levmar/misc_core.c 2009-04-28 13:30:33.000000000 +0200 # SVN 3799
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+++ hugin/src/foreign/levmar/misc_core.c 2009-05-04 07:49:00.000000000 +0200 # Merged patch.pt and fix_alias.diff
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@@ -332,7 +332,7 @@
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a_sz=m*m;
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u_sz=m*m; s_sz=m; vt_sz=m*m;
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- tot_sz=iworksz*sizeof(int) + (a_sz + u_sz + s_sz + vt_sz + worksz)*sizeof(LM_REAL);
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+ tot_sz=(a_sz + u_sz + s_sz + vt_sz + worksz)*sizeof(LM_REAL) + iworksz*sizeof(int); /* should be arranged in that order for proper doubles alignment */
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buf_sz=tot_sz;
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buf=(LM_REAL *)malloc(buf_sz);
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@@ -414,25 +414,27 @@
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int buf_sz=0;
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register int i, j, k, l;
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-int *idx, maxi=-1, idx_sz, a_sz, x_sz, work_sz, tot_sz;
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+int *idxbuf, *idx, maxi=-1, idx_sz, a_sz, x_sz, work_sz, tot_sz;
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LM_REAL *a, *x, *work, max, sum, tmp;
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/* calculate required memory size */
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idx_sz=m;
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+ idxbuf=(void *)malloc(idx_sz*sizeof(int));
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+
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a_sz=m*m;
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x_sz=m;
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work_sz=m;
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- tot_sz=idx_sz*sizeof(int) + (a_sz+x_sz+work_sz)*sizeof(LM_REAL);
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+ tot_sz=(a_sz + x_sz + work_sz)*sizeof(LM_REAL) + idx_sz*sizeof(int); /* should be arranged in that order for proper doubles alignment */
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buf_sz=tot_sz;
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buf=(void *)malloc(tot_sz);
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- if(!buf){
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+ if(!buf || !idxbuf){
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fprintf(stderr, RCAT("memory allocation in ", LEVMAR_LUINVERSE) "() failed!\n");
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exit(1);
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}
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- idx=(int *)buf;
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- a=(LM_REAL *)(idx + idx_sz);
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+ idx=(int *)idxbuf;
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+ a=(LM_REAL *)buf;
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x=a + a_sz;
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work=x + x_sz;
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@@ -448,6 +450,7 @@
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if(max==0.0){
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fprintf(stderr, RCAT("Singular matrix A in ", LEVMAR_LUINVERSE) "()!\n");
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free(buf);
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+ free(idxbuf);
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return 0;
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}
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@@ -522,6 +525,7 @@
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}
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free(buf);
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+ free(idxbuf);
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return 1;
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}
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