http://bugs.freedesktop.org/show_bug.cgi?id=20850
Summary: vbo_exec_vtx_flush causes Floating point exception when
gets 0 vertsize.
Product: Mesa
Version: CVS
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: minor
Priority: low
Component: Mesa core
AssignedTo: [email protected]
ReportedBy: [email protected]
Created an attachment (id=24218)
--> (http://bugs.freedesktop.org/attachment.cgi?id=24218)
I have made small patch that hacks around this problem. It's only a hack.
Function vbo_exec_vtx_flush insrc/mesa/vbo/vbo_exec_draw.c gets Floating point
exception when it gets vertex that looks like this:
http://pastebin.com/m1e77aeb7
It have 0 size and by looking in code:
exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) /.
(exec->vtx.vertex_size * sizeof(GLfloat)));
exec->vtx.vertex_size ends as 0. Id divides by 0.
With my hack I was able to run this vertex without problems.
Tested on master and radeon-rewrite
System:
Radeon X1650pro
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