diff options
Diffstat (limited to 'fontconfig/src/fcmatrix.c')
-rw-r--r-- | fontconfig/src/fcmatrix.c | 240 |
1 files changed, 120 insertions, 120 deletions
diff --git a/fontconfig/src/fcmatrix.c b/fontconfig/src/fcmatrix.c index 2daa0044f..f0c613918 100644 --- a/fontconfig/src/fcmatrix.c +++ b/fontconfig/src/fcmatrix.c @@ -1,120 +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__
+/* + * 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__ |