diff options
Diffstat (limited to 'xorg-server/mi/miwideline.h')
| -rw-r--r-- | xorg-server/mi/miwideline.h | 236 |
1 files changed, 120 insertions, 116 deletions
diff --git a/xorg-server/mi/miwideline.h b/xorg-server/mi/miwideline.h index 1665ebfb1..05d026a38 100644 --- a/xorg-server/mi/miwideline.h +++ b/xorg-server/mi/miwideline.h @@ -1,116 +1,120 @@ -/* - -Copyright 1988, 1998 The Open Group - -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. - -The above copyright notice and this permission notice shall be included -in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR -OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, -ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR -OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of The Open Group shall -not be used in advertising or otherwise to promote the sale, use or -other dealings in this Software without prior written authorization -from The Open Group. - -*/ - -/* Author: Keith Packard, MIT X Consortium */ - -#include "mispans.h" -#include "mifpoly.h" /* for ICEIL */ - -/* - * Polygon edge description for integer wide-line routines - */ - -typedef struct _PolyEdge { - int height; /* number of scanlines to process */ - int x; /* starting x coordinate */ - int stepx; /* fixed integral dx */ - int signdx; /* variable dx sign */ - int e; /* initial error term */ - int dy; - int dx; -} PolyEdgeRec, *PolyEdgePtr; - -#define SQSECANT 108.856472512142 /* 1/sin^2(11/2) - miter limit constant */ - -/* - * types for general polygon routines - */ - -typedef struct _PolyVertex { - double x, y; -} PolyVertexRec, *PolyVertexPtr; - -typedef struct _PolySlope { - int dx, dy; - double k; /* x0 * dy - y0 * dx */ -} PolySlopeRec, *PolySlopePtr; - -/* - * Line face description for caps/joins - */ - -typedef struct _LineFace { - double xa, ya; - int dx, dy; - int x, y; - double k; -} LineFaceRec, *LineFacePtr; - -/* - * macros for polygon fillers - */ - -#define MILINESETPIXEL(pDrawable, pGC, pixel, oldPixel) { \ - oldPixel = pGC->fgPixel; \ - if (pixel != oldPixel) { \ - DoChangeGC (pGC, GCForeground, (XID *) &pixel, FALSE); \ - ValidateGC (pDrawable, pGC); \ - } \ -} -#define MILINERESETPIXEL(pDrawable, pGC, pixel, oldPixel) { \ - if (pixel != oldPixel) { \ - DoChangeGC (pGC, GCForeground, (XID *) &oldPixel, FALSE); \ - ValidateGC (pDrawable, pGC); \ - } \ -} - -extern _X_EXPORT void miRoundJoinClip( - LineFacePtr /*pLeft*/, - LineFacePtr /*pRight*/, - PolyEdgePtr /*edge1*/, - PolyEdgePtr /*edge2*/, - int * /*y1*/, - int * /*y2*/, - Bool * /*left1*/, - Bool * /*left2*/ -); - -extern _X_EXPORT int miRoundCapClip( - LineFacePtr /*face*/, - Bool /*isInt*/, - PolyEdgePtr /*edge*/, - Bool * /*leftEdge*/ -); - -extern _X_EXPORT int miPolyBuildEdge(double x0, double y0, double k, int dx, int dy, - int xi, int yi, int left, PolyEdgePtr edge); -extern _X_EXPORT int miPolyBuildPoly(PolyVertexPtr vertices, PolySlopePtr slopes, - int count, int xi, int yi, PolyEdgePtr left, - PolyEdgePtr right, int *pnleft, int *pnright, - int *h); - +/*
+
+Copyright 1988, 1998 The Open Group
+
+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.
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from The Open Group.
+
+*/
+
+/* Author: Keith Packard, MIT X Consortium */
+
+#include "mispans.h"
+#include "mifpoly.h" /* for ICEIL */
+
+/*
+ * Polygon edge description for integer wide-line routines
+ */
+
+typedef struct _PolyEdge {
+ int height; /* number of scanlines to process */
+ int x; /* starting x coordinate */
+ int stepx; /* fixed integral dx */
+ int signdx; /* variable dx sign */
+ int e; /* initial error term */
+ int dy;
+ int dx;
+} PolyEdgeRec, *PolyEdgePtr;
+
+#define SQSECANT 108.856472512142 /* 1/sin^2(11/2) - miter limit constant */
+
+/*
+ * types for general polygon routines
+ */
+
+typedef struct _PolyVertex {
+ double x, y;
+} PolyVertexRec, *PolyVertexPtr;
+
+typedef struct _PolySlope {
+ int dx, dy;
+ double k; /* x0 * dy - y0 * dx */
+} PolySlopeRec, *PolySlopePtr;
+
+/*
+ * Line face description for caps/joins
+ */
+
+typedef struct _LineFace {
+ double xa, ya;
+ int dx, dy;
+ int x, y;
+ double k;
+} LineFaceRec, *LineFacePtr;
+
+/*
+ * macros for polygon fillers
+ */
+
+#define MILINESETPIXEL(pDrawable, pGC, pixel, oldPixel) { \
+ oldPixel = pGC->fgPixel; \
+ if (pixel != oldPixel) { \
+ ChangeGCVal gcval; \
+ gcval.val = pixel; \
+ ChangeGC (NullClient, pGC, GCForeground, &gcval); \
+ ValidateGC (pDrawable, pGC); \
+ } \
+}
+#define MILINERESETPIXEL(pDrawable, pGC, pixel, oldPixel) { \
+ if (pixel != oldPixel) { \
+ ChangeGCVal gcval; \
+ gcval.val = oldPixel; \
+ ChangeGC (NullClient, pGC, GCForeground, &gcval); \
+ ValidateGC (pDrawable, pGC); \
+ } \
+}
+
+extern _X_EXPORT void miRoundJoinClip(
+ LineFacePtr /*pLeft*/,
+ LineFacePtr /*pRight*/,
+ PolyEdgePtr /*edge1*/,
+ PolyEdgePtr /*edge2*/,
+ int * /*y1*/,
+ int * /*y2*/,
+ Bool * /*left1*/,
+ Bool * /*left2*/
+);
+
+extern _X_EXPORT int miRoundCapClip(
+ LineFacePtr /*face*/,
+ Bool /*isInt*/,
+ PolyEdgePtr /*edge*/,
+ Bool * /*leftEdge*/
+);
+
+extern _X_EXPORT int miPolyBuildEdge(double x0, double y0, double k, int dx, int dy,
+ int xi, int yi, int left, PolyEdgePtr edge);
+extern _X_EXPORT int miPolyBuildPoly(PolyVertexPtr vertices, PolySlopePtr slopes,
+ int count, int xi, int yi, PolyEdgePtr left,
+ PolyEdgePtr right, int *pnleft, int *pnright,
+ int *h);
+
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