| Summary: |
Not specifying user data for gluTessVertex causes NULL pointer to vertex callback. |
| Product: |
Mesa
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Reporter: |
Fredrik Hultin <noname+freedesktop> |
| Component: |
GLU | Assignee: |
mesa-dev |
| Status: |
RESOLVED
NOTABUG
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QA Contact: |
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| Severity: |
normal
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| Priority: |
medium
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| Version: |
git | |
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| Hardware: |
x86-64 (AMD64) | |
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| OS: |
Linux (All) | |
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| Whiteboard: |
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i915 platform:
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i915 features:
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| Attachments: |
Reproduces bug in libtess.
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Created attachment 69647 [details] Reproduces bug in libtess. Overview When setting up a callback function for the polygon tesselator (libtess), the received pointer (which should point to a vertex) is NULL if the third argument (a pointer to user data) is NULL. Steps to reproduce 1) Create GLUtesselator object 2) Specify a GLU_TESS_VERTEX or GLU_TESS_VERTEX_DATA callback 3) Tessellate a polygon Or see attached file. Actual results Supplied vertex callback argument is NULL. Expected results Supplied vertex callback argument should point to valid vertex data. Build Date & Platform git 2012-11-06, Ubuntu Linux 12.04 Additional Information Attached test which runs the tessellation in 2 runs, first with the user data pointer set to a reference to a dummy integer (works), and then with the user data pointer set to NULL (doesn't work).