summaryrefslogtreecommitdiff
path: root/src/Type1/paths.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/Type1/paths.c')
-rw-r--r--src/Type1/paths.c211
1 files changed, 105 insertions, 106 deletions
diff --git a/src/Type1/paths.c b/src/Type1/paths.c
index 35c3e41..6291d68 100644
--- a/src/Type1/paths.c
+++ b/src/Type1/paths.c
@@ -26,6 +26,8 @@
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
* THIS SOFTWARE.
*/
+/* $XFree86: xc/lib/font/Type1/paths.c,v 1.7 2002/02/18 20:51:57 herrb Exp $ */
+
/* PATHS CWEB V0021 ******** */
/*
:h1 id=paths.PATHS Module - Path Operator Handler
@@ -42,6 +44,7 @@ The included files are:
*/
/* after the system includes (dsr) */
+#include "os.h"
#include "objects.h"
#include "spaces.h"
#include "paths.h"
@@ -51,6 +54,7 @@ The included files are:
#include "strokes.h" /* understands how to coerce stroke paths */
#include "trig.h"
+
/*
:h3.Routines Available to the TYPE1IMAGER User
@@ -112,10 +116,10 @@ text, which has some auxilliary things involved. We don't feel
competent to duplicate text in this module, so we call someone who
knows how (in the FONTS module).
*/
-struct segment *CopyPath(p0)
- register struct segment *p0; /* path to duplicate */
+struct segment *
+CopyPath(struct segment *p0) /* path to duplicate */
{
- register struct segment *p,*n,*last,*anchor;
+ register struct segment *p,*n = NULL,*last = NULL,*anchor;
for (p = p0, anchor = NULL; p != NULL; p = p->link) {
@@ -150,8 +154,8 @@ At this point we have a chain of newly allocated segments hanging off
Destroying a path is simply a matter of freeing each segment in the
linked list. Again, we let the experts handle text.
*/
-void KillPath(p)
- register struct segment *p; /* path to destroy */
+void
+KillPath(struct segment *p) /* path to destroy */
{
register struct segment *linkp; /* temp register holding next segment*/
@@ -194,15 +198,15 @@ This template is used as a generic segment structure for Allocate:
/* added reference field 1 to temporary template below 3-26-91 PNM */
static struct segment movetemplate = { MOVETYPE, 0, 1, sizeof(struct segment), 0,
- NULL, NULL, 0, 0 };
+ NULL, NULL, {0, 0} };
/*
:h3.Loc() - Create an "Invisible Line" Between (0,0) and a Point
*/
-struct segment *t1_Loc(S, x, y)
- register struct XYspace *S; /* coordinate space to interpret X,Y */
- double x,y; /* destination point */
+struct segment *
+t1_Loc(struct XYspace *S, /* coordinate space to interpret X,Y */
+ double x, double y) /* destination point */
{
register struct segment *r;
@@ -222,9 +226,9 @@ struct segment *t1_Loc(S, x, y)
:h3.ILoc() - Loc() With Integer Arguments
*/
-struct segment *ILoc(S, x, y)
- register struct XYspace *S; /* coordinate space to interpret X,Y */
- register int x,y; /* destination point */
+struct segment *
+ILoc(struct XYspace *S, /* coordinate space to interpret X,Y */
+ int x, int y) /* destination point */
{
register struct segment *r;
@@ -250,9 +254,8 @@ The symmetrical function AddLoc() is totally redundent with Join(),
so it is not provided.
*/
-struct segment *SubLoc(p1, p2)
- register struct segment *p1;
- register struct segment *p2;
+struct segment *
+SubLoc(struct segment *p1, struct segment *p2)
{
IfTrace2((MustTraceCalls),"SubLoc(%z, %z)\n", p1, p2);
@@ -277,9 +280,9 @@ conversion is unnecessary. PathSegment() is an internal routine
provided to the rest of TYPE1IMAGER for handling these cases.
*/
-struct segment *t1_PathSegment(type, x, y)
- int type; /* LINETYPE or MOVETYPE */
- fractpel x,y; /* where to go to, if known */
+struct segment *
+t1_PathSegment(int type, /* LINETYPE or MOVETYPE */
+ fractpel x, fractpel y) /* where to go to, if known */
{
register struct segment *r; /* newly created segment */
@@ -295,8 +298,8 @@ struct segment *t1_PathSegment(type, x, y)
This involves just creating and filling out a segment structure:
*/
-struct segment *Line(P)
- register struct segment *P; /* relevant coordinate space */
+struct segment *
+Line(struct segment *P) /* relevant coordinate space */
{
IfTrace1((MustTraceCalls),"..Line(%z)\n", P);
@@ -330,10 +333,10 @@ inversely related to the length |CD|. Point A is always point (0,0).
This is just a simple matter of filling out a 'beziersegment' structure:
*/
-struct beziersegment *Bezier(B, C, D)
- register struct segment *B; /* second control point */
- register struct segment *C; /* third control point */
- register struct segment *D; /* fourth control point (ending point) */
+struct beziersegment *
+Bezier(struct segment *B, /* second control point */
+ struct segment *C, /* third control point */
+ struct segment *D) /* fourth control point (ending point) */
{
/* added reference field of 1 to temporary template below 3-26-91 PNM */
static struct beziersegment template =
@@ -371,15 +374,10 @@ This is temporary code while we experiment with hints.
*/
/*SHARED LINE(S) ORIGINATED HERE*/
-struct hintsegment *Hint(S, ref, width, orientation, hinttype, adjusttype, direction, label)
- struct XYspace *S;
- float ref;
- float width;
- char orientation;
- char hinttype;
- char adjusttype;
- char direction;
- int label;
+struct hintsegment *
+Hint(struct XYspace *S, float ref, float width,
+ char orientation, char hinttype, char adjusttype, char direction,
+ int label)
{
/* added reference field of 1 to hintsegment template below 3-26-91 PNM */
static struct hintsegment template = { HINTTYPE, 0, 1, sizeof(struct hintsegment), 0,
@@ -446,8 +444,8 @@ types other than paths, and also check for certain path consistency
rules.
*/
-struct segment *Join(p1, p2)
- register struct segment *p1,*p2;
+struct segment *
+Join(struct segment *p1, struct segment *p2)
{
IfTrace2((MustTraceCalls && PathDebug > 1),"..Join(%z, %z)\n", p1, p2);
IfTrace2((MustTraceCalls && PathDebug <=1),"..Join(%x, %x)\n", p1, p2);
@@ -570,11 +568,11 @@ This internal function is quicker than a full-fledged join because
it can do much less checking.
*/
-struct segment *t1_JoinSegment(before, type, x, y, after)
- register struct segment *before; /* path to join before new segment */
- int type; /* type of new segment (MOVETYPE or LINETYPE) */
- fractpel x,y; /* x,y of new segment */
- register struct segment *after; /* path to join after new segment */
+struct segment *
+t1_JoinSegment(struct segment *before, /* path to join before new segment */
+ int type, /* type of new segment (MOVETYPE or LINETYPE) */
+ fractpel x, fractpel y, /* x,y of new segment */
+ struct segment *after) /* path to join after new segment */
{
register struct segment *r; /* returned path built here */
@@ -596,14 +594,14 @@ struct segment *t1_JoinSegment(before, type, x, y, after)
*/
-struct segment *t1_ClosePath(p0,lastonly)
- register struct segment *p0; /* path to close */
- register int lastonly; /* flag deciding to close all subpaths or... */
+struct segment *
+t1_ClosePath(struct segment *p0, /* path to close */
+ int lastonly) /* flag deciding to close all subpaths or... */
{
- register struct segment *p,*last,*start; /* used in looping through path */
+ register struct segment *p,*last = NULL,*start; /* used in looping through path */
register fractpel x,y; /* current position in path */
- register fractpel firstx,firsty; /* start position of sub path */
- register struct segment *lastnonhint; /* last non-hint segment in path */
+ register fractpel firstx = 0,firsty = 0; /* start position of sub path */
+ register struct segment *lastnonhint = NULL; /* last non-hint segment in path */
IfTrace1((MustTraceCalls),"ClosePath(%z)\n", p0);
if (p0 != NULL && p0->type == TEXTTYPE)
@@ -689,18 +687,22 @@ etc.
We need three subroutines:
*/
-static struct segment *SplitPath(); /* break a path at any point */
-static struct segment *DropSubPath(); /* breaks a path after first sub-path */
-static struct segment *ReverseSubPath(); /* reverses a single sub-path */
-
+/* break a path at any point */
+static struct segment *SplitPath ( struct segment *anchor,
+ struct segment *before );
+/* breaks a path after first sub-path */
+static struct segment *DropSubPath ( struct segment *p0 );
+/* reverses a single sub-path */
+static struct segment *ReverseSubPath ( struct segment *p );
+
/*
:h3.Reverse() - User Operator to Reverse a Path
This operator reverses the entire path.
*/
-struct segment *Reverse(p)
- register struct segment *p; /* full path to reverse */
+struct segment *
+Reverse(struct segment *p) /* full path to reverse */
{
register struct segment *r; /* output path built here */
register struct segment *nextp; /* contains next sub-path */
@@ -733,8 +735,8 @@ struct segment *Reverse(p)
:h4.ReverseSubPath() - Subroutine to Reverse a Single Sub-Path
*/
-static struct segment *ReverseSubPath(p)
- register struct segment *p; /* input path */
+static struct segment *
+ReverseSubPath(struct segment *p) /* input path */
{
register struct segment *r; /* reversed path will be created here */
register struct segment *nextp; /* temporary variable used in loop */
@@ -790,7 +792,7 @@ So, we add "dest" instead of subtracting it:
break;
default:
- abort("Reverse: bad path segment");
+ Abort("Reverse: bad path segment");
}
/*
We need to reverse the order of segments too, so we break this segment
@@ -821,8 +823,8 @@ breaks the input path after the first sub-path so that a pointer to
the original path now contains the first sub-path only.
*/
-static struct segment *DropSubPath(p0)
- register struct segment *p0; /* original path */
+static struct segment *
+DropSubPath(struct segment *p0) /* original path */
{
register struct segment *p; /* returned remainder here */
@@ -834,9 +836,8 @@ static struct segment *DropSubPath(p0)
return(SplitPath(p0, p));
}
-static struct segment *SplitPath(anchor, before)
- register struct segment *anchor;
- register struct segment *before;
+static struct segment *
+SplitPath(struct segment *anchor, struct segment *before)
{
register struct segment *r;
@@ -852,15 +853,14 @@ static struct segment *SplitPath(anchor, before)
}
static void
-UnClose(p0)
- register struct segment *p0;
+UnClose(struct segment *p0)
{
register struct segment *p;
for (p=p0; p->link->link != NULL; p=p->link) { ; }
if (!LASTCLOSED(p->link->flag))
- abort("UnClose: no LASTCLOSED");
+ Abort("UnClose: no LASTCLOSED");
Free(SplitPath(p0, p));
p0->flag &= ~ISCLOSED(ON);
@@ -874,8 +874,8 @@ This user operator reverses the sub-paths in a path, but leaves the
already established.
*/
-struct segment *ReverseSubPaths(p)
- register struct segment *p; /* input path */
+struct segment *
+ReverseSubPaths(struct segment *p) /* input path */
{
register struct segment *r; /* reversed path will be created here */
register struct segment *nextp; /* temporary variable used in loop */
@@ -951,9 +951,9 @@ The transform is described as a "space", that way we can use our
old friend the "iconvert" function, which should be very efficient.
*/
-struct segment *PathTransform(p0, S)
- register struct segment *p0; /* path to transform */
- register struct XYspace *S; /* pseudo space to transform in */
+struct segment *
+PathTransform(struct segment *p0, /* path to transform */
+ struct XYspace *S) /* pseudo space to transform in */
{
register struct segment *p; /* to loop through path with */
register fractpel newx,newy; /* current transformed position in path */
@@ -1025,7 +1025,7 @@ struct segment *PathTransform(p0, S)
default:
IfTrace1(TRUE,"path = %z\n", p);
- abort("PathTransform: invalid segment");
+ Abort("PathTransform: invalid segment");
}
oldx += savex;
oldy += savey;
@@ -1039,9 +1039,9 @@ struct segment *PathTransform(p0, S)
:h3.PathDelta() - Return a Path's Ending Point
*/
-void PathDelta(p, pt)
- register struct segment *p; /* input path */
- register struct fractpoint *pt; /* pointer to x,y to set */
+void
+PathDelta(struct segment *p, /* input path */
+ struct fractpoint *pt) /* pointer to x,y to set */
{
struct fractpoint mypoint; /* I pass this to TextDelta */
register fractpel x,y; /* working variables for path current point */
@@ -1067,8 +1067,8 @@ This function is called by image code, when we know the size of the
image in pels, and need to get a bounding box path that surrounds it.
The starting/ending handle is in the lower right hand corner.
*/
-struct segment *BoundingBox(h, w)
- register pel h,w; /* size of box */
+struct segment *
+BoundingBox(pel h, pel w) /* size of box */
{
register struct segment *path;
@@ -1086,10 +1086,10 @@ struct segment *BoundingBox(h, w)
:h3.QueryLoc() - Return the X,Y of a Locition
*/
-void QueryLoc(P, S, xP, yP)
- register struct segment *P; /* location to query, not consumed */
- register struct XYspace *S; /* XY space to return coordinates in */
- register double *xP,*yP; /* coordinates returned here */
+void
+QueryLoc(struct segment *P, /* location to query, not consumed */
+ struct XYspace *S, /* XY space to return coordinates in */
+ double *xP, double *yP) /* coordinates returned here */
{
IfTrace4((MustTraceCalls),"QueryLoc(P=%z, S=%z, (%x, %x))\n",
P, S, xP, yP);
@@ -1114,13 +1114,13 @@ a move segment, for example, he only needs to pass pointers to return
one control point.
*/
-void QueryPath(path, typeP, Bp, Cp, Dp, fP)
- register struct segment *path; /* path to check */
- register int *typeP; /* return the type of path here */
- register struct segment **Bp; /* return location of first point */
- register struct segment **Cp; /* return location of second point */
- register struct segment **Dp; /* return location of third point */
- register double *fP; /* return Conic sharpness */
+void
+QueryPath(struct segment *path, /* path to check */
+ int *typeP, /* return the type of path here */
+ struct segment **Bp, /* return location of first point */
+ struct segment **Cp, /* return location of second point */
+ struct segment **Dp, /* return location of third point */
+ double *fP) /* return Conic sharpness */
{
register int coerced = FALSE; /* did I coerce a text path? */
@@ -1177,7 +1177,7 @@ void QueryPath(path, typeP, Bp, Cp, Dp, fP)
break;
default:
- abort("QueryPath: unknown segment");
+ Abort("QueryPath: unknown segment");
}
if (coerced)
KillPath(path);
@@ -1188,11 +1188,13 @@ void QueryPath(path, typeP, Bp, Cp, Dp, fP)
Returns the bounding box by setting the user's variables.
*/
-void QueryBounds(p0, S, xminP, yminP, xmaxP, ymaxP)
- register struct segment *p0; /* object to check for bound */
- struct XYspace *S; /* coordinate space of returned values */
- double *xminP,*yminP; /* lower left hand corner (set by routine) */
- double *xmaxP,*ymaxP; /* upper right hand corner (set by routine) */
+void
+QueryBounds(struct segment *p0, /* object to check for bound */
+ struct XYspace *S, /* coordinate space of returned values */
+ double *xminP, /* lower left hand corner (set by routine) */
+ double *yminP,
+ double *xmaxP, /* upper right hand corner (set by routine) */
+ double *ymaxP)
{
register struct segment *path; /* loop variable for path segments */
register fractpel lastx,lasty; /* loop variables: previous endingpoint */
@@ -1219,7 +1221,7 @@ void QueryBounds(p0, S, xminP, yminP, xmaxP, ymaxP)
p0 = (struct segment *) DoStroke(Dup(p0));
/* no break here, we have a region in p0 */
case REGIONTYPE:
- p0 = RegionBounds(p0);
+ p0 = RegionBounds((struct region *)p0);
break;
case PICTURETYPE:
@@ -1317,7 +1319,7 @@ void QueryBounds(p0, S, xminP, yminP, xmaxP, ymaxP)
case HINTTYPE:
break;
default:
- abort("QueryBounds: unknown type");
+ Abort("QueryBounds: unknown type");
}
if (x < min.x) min.x = x;
@@ -1356,9 +1358,8 @@ done:
/*
:h3.BoxPath()
*/
-struct segment *BoxPath(S, h, w)
- struct XYspace *S;
- int h,w;
+struct segment *
+BoxPath(struct XYspace *S, int h, int w)
{
struct segment *path;
@@ -1375,8 +1376,8 @@ shorter. It can be used in conjunction with QueryPath(), for example,
to ask about an entire path.
*/
-struct segment *DropSegment(path)
- register struct segment *path;
+struct segment *
+DropSegment(struct segment *path)
{
IfTrace1((MustTraceCalls),"DropSegment(%z)\n", path);
if (path != NULL && path->type == STROKEPATHTYPE)
@@ -1397,8 +1398,8 @@ This routine takes the path and returns a new path consists of the
first segment only.
*/
-struct segment *HeadSegment(path)
- register struct segment *path; /* input path */
+struct segment *
+HeadSegment(struct segment *path) /* input path */
{
IfTrace1((MustTraceCalls),"HeadSegment(%z)\n", path);
if (path == NULL)
@@ -1423,8 +1424,8 @@ struct segment *HeadSegment(path)
:h3.DumpPath() - Display a Path on the Trace File
*/
-void DumpPath(p)
- register struct segment *p;
+void
+DumpPath(struct segment *p)
{
register fractpel x,y;
register fractpel lastx,lasty;
@@ -1466,8 +1467,6 @@ void DumpPath(p)
case BEZIERTYPE:
{
- register struct beziersegment *bp = (struct beziersegment *) p;
-
IfTrace4(TRUE,". bezier to (%p,%p), B=(%p,%p)",
x + lastx, y + lasty,
bp->B.x + lastx, bp->B.y + lasty);
@@ -1478,8 +1477,6 @@ void DumpPath(p)
case HINTTYPE:
{
- register struct hintsegment *hp = (struct hintsegment *) p;
-
IfTrace4(TRUE,". hint ref=(%p,%p), width=(%p,%p)",
hp->ref.x + lastx, hp->ref.y + lasty,
hp->width.x, hp->width.y);
@@ -1491,7 +1488,9 @@ void DumpPath(p)
break;
case TEXTTYPE:
+#ifdef notyet
DumpText(p);
+#endif
break;
default:
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 03:11:59 +0000