7eb492e839
library build target to the .gyp file (not required by any executable yet). Fix some build errors with SampleApp on Linux and Win32. Add a gyp_skia python script which invokes gyp with the correct arguments, and is recursively callable by the Makefile when skia.gyp is changed. Review URL: http://codereview.appspot.com/4280069/ git-svn-id: http://skia.googlecode.com/svn/trunk@1007 2bbb7eff-a529-9590-31e7-b0007b416f81
85 lines
3.7 KiB
C
85 lines
3.7 KiB
C
/*
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** License Applicability. Except to the extent portions of this file are
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** made subject to an alternative license as permitted in the SGI Free
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** Software License B, Version 1.1 (the "License"), the contents of this
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** file are subject only to the provisions of the License. You may not use
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** this file except in compliance with the License. You may obtain a copy
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** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
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** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
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**
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** http://oss.sgi.com/projects/FreeB
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**
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** Note that, as provided in the License, the Software is distributed on an
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** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
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** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
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** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
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** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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**
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** Original Code. The Original Code is: OpenGL Sample Implementation,
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** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
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** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
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** Copyright in any portions created by third parties is as indicated
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** elsewhere herein. All Rights Reserved.
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**
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** Additional Notice Provisions: The application programming interfaces
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** established by SGI in conjunction with the Original Code are The
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** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
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** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
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** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
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** Window System(R) (Version 1.3), released October 19, 1998. This software
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** was created using the OpenGL(R) version 1.2.1 Sample Implementation
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** published by SGI, but has not been independently verified as being
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** compliant with the OpenGL(R) version 1.2.1 Specification.
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**
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*/
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/*
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** Author: Eric Veach, July 1994.
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**
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** $Date$ $Revision$
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** $Header: //depot/main/gfx/lib/glu/libtess/sweep.h#5 $
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*/
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#ifndef __sweep_h_
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#define __sweep_h_
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#include "mesh.h"
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/* __gl_computeInterior( tess ) computes the planar arrangement specified
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* by the given contours, and further subdivides this arrangement
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* into regions. Each region is marked "inside" if it belongs
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* to the polygon, according to the rule given by tess->windingRule.
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* Each interior region is guaranteed be monotone.
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*/
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int __gl_computeInterior( GLUtesselator *tess );
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/* The following is here *only* for access by debugging routines */
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#include "dict.h"
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/* For each pair of adjacent edges crossing the sweep line, there is
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* an ActiveRegion to represent the region between them. The active
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* regions are kept in sorted order in a dynamic dictionary. As the
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* sweep line crosses each vertex, we update the affected regions.
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*/
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struct ActiveRegion {
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GLUhalfEdge *eUp; /* upper edge, directed right to left */
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DictNode *nodeUp; /* dictionary node corresponding to eUp */
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int windingNumber; /* used to determine which regions are
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* inside the polygon */
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GLboolean inside; /* is this region inside the polygon? */
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GLboolean sentinel; /* marks fake edges at t = +/-infinity */
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GLboolean dirty; /* marks regions where the upper or lower
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* edge has changed, but we haven't checked
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* whether they intersect yet */
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GLboolean fixUpperEdge; /* marks temporary edges introduced when
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* we process a "right vertex" (one without
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* any edges leaving to the right) */
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};
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#define RegionBelow(r) ((ActiveRegion *) dictKey(dictPred((r)->nodeUp)))
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#define RegionAbove(r) ((ActiveRegion *) dictKey(dictSucc((r)->nodeUp)))
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#endif
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