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author | marha <marha@users.sourceforge.net> | 2011-01-19 10:06:48 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2011-01-19 10:06:48 +0000 |
commit | 6e3cfc5bc8ca969856e4d56dec01870df709d75a (patch) | |
tree | 92d253c403ac0ecfbb1c2859c283649bd46da65b /fontconfig/src/fcmatrix.c | |
parent | fe39224c389ccc187c2232d9cc796599e150fa6b (diff) | |
download | vcxsrv-6e3cfc5bc8ca969856e4d56dec01870df709d75a.tar.gz vcxsrv-6e3cfc5bc8ca969856e4d56dec01870df709d75a.tar.bz2 vcxsrv-6e3cfc5bc8ca969856e4d56dec01870df709d75a.zip |
Added libXft-2.2.0 fontconfig-2.8.0 libXrender-0.9.6
Diffstat (limited to 'fontconfig/src/fcmatrix.c')
-rw-r--r-- | fontconfig/src/fcmatrix.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/fontconfig/src/fcmatrix.c b/fontconfig/src/fcmatrix.c new file mode 100644 index 000000000..1d6e2f6b0 --- /dev/null +++ b/fontconfig/src/fcmatrix.c @@ -0,0 +1,120 @@ +/* + * fontconfig/src/fcmatrix.c + * + * Copyright © 2000 Tuomas J. Lukka + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Tuomas Lukka not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Tuomas Lukka makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * TUOMAS LUKKA DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL TUOMAS LUKKA BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#include "fcint.h" +#include <math.h> +#include <stdlib.h> +#include <ctype.h> + +const FcMatrix FcIdentityMatrix = { 1, 0, 0, 1 }; + +FcMatrix * +FcMatrixCopy (const FcMatrix *mat) +{ + FcMatrix *r; + if(!mat) + return 0; + r = (FcMatrix *) malloc (sizeof (*r) ); + if (!r) + return 0; + FcMemAlloc (FC_MEM_MATRIX, sizeof (FcMatrix)); + *r = *mat; + return r; +} + +void +FcMatrixFree (FcMatrix *mat) +{ + if (mat != &FcIdentityMatrix) + { + FcMemFree (FC_MEM_MATRIX, sizeof (FcMatrix)); + free (mat); + } +} + +FcBool +FcMatrixEqual (const FcMatrix *mat1, const FcMatrix *mat2) +{ + if(mat1 == mat2) return FcTrue; + if(mat1 == 0 || mat2 == 0) return FcFalse; + return mat1->xx == mat2->xx && + mat1->xy == mat2->xy && + mat1->yx == mat2->yx && + mat1->yy == mat2->yy; +} + +void +FcMatrixMultiply (FcMatrix *result, const FcMatrix *a, const FcMatrix *b) +{ + FcMatrix r; + + r.xx = a->xx * b->xx + a->xy * b->yx; + r.xy = a->xx * b->xy + a->xy * b->yy; + r.yx = a->yx * b->xx + a->yy * b->yx; + r.yy = a->yx * b->xy + a->yy * b->yy; + *result = r; +} + +void +FcMatrixRotate (FcMatrix *m, double c, double s) +{ + FcMatrix r; + + /* + * X Coordinate system is upside down, swap to make + * rotations counterclockwise + */ + r.xx = c; + r.xy = -s; + r.yx = s; + r.yy = c; + FcMatrixMultiply (m, &r, m); +} + +void +FcMatrixScale (FcMatrix *m, double sx, double sy) +{ + FcMatrix r; + + r.xx = sx; + r.xy = 0; + r.yx = 0; + r.yy = sy; + FcMatrixMultiply (m, &r, m); +} + +void +FcMatrixShear (FcMatrix *m, double sh, double sv) +{ + FcMatrix r; + + r.xx = 1; + r.xy = sh; + r.yx = sv; + r.yy = 1; + FcMatrixMultiply (m, &r, m); +} +#define __fcmatrix__ +#include "fcaliastail.h" +#undef __fcmatrix__ |