initial state (xorg-server 1.10.2)

1 files changed, 120 insertions, 0 deletions

diff --git a/mi/miwideline.h b/mi/miwideline.h
new file mode 100644
index 0000000..e08aa68
--- /dev/null
+++ b/mi/miwideline.h
@@ -0,0 +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) { \
+	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);
+