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42 lines
1.7 KiB
Plaintext
42 lines
1.7 KiB
Plaintext
This is a nearly verbatim copy of the GLU tessellator source code from
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SGI's OpenGL Sample Implementation at
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http://oss.sgi.com/projects/ogl-sample/ . Per
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http://oss.sgi.com/projects/FreeB/ , the code is covered under the SGI
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Free Software License B, version 2.0, a copy of which is in
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LICENSE.txt in this directory.
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The following changes were made in order to incorporate this code:
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- The addition of a simplified gluos.h to eliminate operating system
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dependencies. The entry points to the tessellator were prefixed with
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Sk_ to avoid symbol collisions with any host OS version of GLU via
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#defines in gluos.h.
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- The removal of inclusion of GL/glu.h and replacement with an
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include of sk_glu.h.
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- In tess.c, the obsolete entry points gluBeginPolygon,
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gluNextContour and gluEndPolygon in tess.c were #if 0'd out.
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Default branches were added to the switch statements in GotoState.
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- In memalloc.h, the include of malloc.h was changed to an include
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of stdlib.h.
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- In normal.c, an unused variable "w" was removed from
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__gl_projectPolygon. #if guards were placed around the definition
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of the unused Normalize function.
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- In priorityq-heap.c, an #include of <limits.h> was added.
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- In sweep.c, IsWindingInside() was given a return value to silence a
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warning-as-error in release builds.
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- In sweep.c, DoneEdgeDict()'s fixedEdges was wrapped in #indef NDEBUG, to
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silence a warning-as-error in release builds.
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- In priorityq.c, render.c, and others: the construct "if(1)...else" was
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replaced with "do{...}while(1)" to silence a warning-as-error in Mac builds.
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- rename all __gl_ functions to Sk__gl_ to avoid conflicting with other
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static linkers of this library.
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