+++ /dev/null
-/* $XConsortium: miwideline.h,v 1.11 94/04/17 20:28:02 dpw Exp $ */
-/*
-
-Copyright (c) 1988 X Consortium
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-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 X CONSORTIUM 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 X Consortium 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 X Consortium.
-
-*/
-
-/* Author: Keith Packard, MIT X Consortium */
-
-#include "mispans.h"
-
-/*
- * interface data to span-merging polygon filler
- */
-
-typedef struct _SpanData {
- SpanGroup fgGroup, bgGroup;
-} SpanDataRec, *SpanDataPtr;
-
-#define AppendSpanGroup(pGC, pixel, spanPtr, spanData) { \
- SpanGroup *group, *othergroup = NULL; \
- if (pixel == pGC->fgPixel) \
- { \
- group = &spanData->fgGroup; \
- if (pGC->lineStyle == LineDoubleDash) \
- othergroup = &spanData->bgGroup; \
- } \
- else \
- { \
- group = &spanData->bgGroup; \
- othergroup = &spanData->fgGroup; \
- } \
- miAppendSpans (group, othergroup, spanPtr); \
-}
-
-/*
- * 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 MIPOLYRELOADLEFT if (!left_height && left_count) { \
- left_height = left->height; \
- left_x = left->x; \
- left_stepx = left->stepx; \
- left_signdx = left->signdx; \
- left_e = left->e; \
- left_dy = left->dy; \
- left_dx = left->dx; \
- --left_count; \
- ++left; \
- }
-
-#define MIPOLYRELOADRIGHT if (!right_height && right_count) { \
- right_height = right->height; \
- right_x = right->x; \
- right_stepx = right->stepx; \
- right_signdx = right->signdx; \
- right_e = right->e; \
- right_dy = right->dy; \
- right_dx = right->dx; \
- --right_count; \
- ++right; \
- }
-
-#define MIPOLYSTEPLEFT left_x += left_stepx; \
- left_e += left_dx; \
- if (left_e > 0) \
- { \
- left_x += left_signdx; \
- left_e -= left_dy; \
- }
-
-#define MIPOLYSTEPRIGHT right_x += right_stepx; \
- right_e += right_dx; \
- if (right_e > 0) \
- { \
- right_x += right_signdx; \
- right_e -= right_dy; \
- }
-
-#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); \
- } \
-}
-
-#ifdef NOINLINEICEIL
-#define ICEIL(x) ((int)ceil(x))
-#else
-#ifdef __GNUC__
-static __inline int ICEIL(x)
- double x;
-{
- int _cTmp = x;
- return ((x == _cTmp) || (x < 0.0)) ? _cTmp : _cTmp+1;
-}
-#else
-#define ICEIL(x) ((((x) == (_cTmp = (x))) || ((x) < 0.0)) ? _cTmp : _cTmp+1)
-#define ICEILTEMPDECL static int _cTmp;
-#endif
-#endif
-
-extern void miFillPolyHelper(
-#if NeedFunctionPrototypes
- DrawablePtr /*pDrawable*/,
- GCPtr /*pGC*/,
- unsigned long /*pixel*/,
- SpanDataPtr /*spanData*/,
- int /*y*/,
- int /*overall_height*/,
- PolyEdgePtr /*left*/,
- PolyEdgePtr /*right*/,
- int /*left_count*/,
- int /*right_count*/
-#endif
-);
-extern int miRoundJoinFace(
-#if NeedFunctionPrototypes
- LineFacePtr /*face*/,
- PolyEdgePtr /*edge*/,
- Bool * /*leftEdge*/
-#endif
-);
-
-extern void miRoundJoinClip(
-#if NeedFunctionPrototypes
- LineFacePtr /*pLeft*/,
- LineFacePtr /*pRight*/,
- PolyEdgePtr /*edge1*/,
- PolyEdgePtr /*edge2*/,
- int * /*y1*/,
- int * /*y2*/,
- Bool * /*left1*/,
- Bool * /*left2*/
-#endif
-);
-
-extern int miRoundCapClip(
-#if NeedFunctionPrototypes
- LineFacePtr /*face*/,
- Bool /*isInt*/,
- PolyEdgePtr /*edge*/,
- Bool * /*leftEdge*/
-#endif
-);
-
-extern void miLineProjectingCap(
-#if NeedFunctionPrototypes
- DrawablePtr /*pDrawable*/,
- GCPtr /*pGC*/,
- unsigned long /*pixel*/,
- SpanDataPtr /*spanData*/,
- LineFacePtr /*face*/,
- Bool /*isLeft*/,
- double /*xorg*/,
- double /*yorg*/,
- Bool /*isInt*/
-#endif
-);
-
-extern SpanDataPtr miSetupSpanData(
-#if NeedFunctionPrototypes
- GCPtr /*pGC*/,
- SpanDataPtr /*spanData*/,
- int /*npt*/
-#endif
-);
-
-extern void miCleanupSpanData(
-#if NeedFunctionPrototypes
- DrawablePtr /*pDrawable*/,
- GCPtr /*pGC*/,
- SpanDataPtr /*spanData*/
-#endif
-);
projects / rdpsrv / blobdiff