diff options
Diffstat (limited to 'xorg-server/mi/miwideline.h')
| -rw-r--r-- | xorg-server/mi/miwideline.h | 239 |
1 files changed, 119 insertions, 120 deletions
diff --git a/xorg-server/mi/miwideline.h b/xorg-server/mi/miwideline.h index 05d026a38..110541120 100644 --- a/xorg-server/mi/miwideline.h +++ b/xorg-server/mi/miwideline.h @@ -1,120 +1,119 @@ -/*
-
-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);
-
+/* + +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); |