[Bug 43096] New: r300g: r300_emit_draw_elements() refusing to render when max_index = 0xffffffff
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Sat Nov 19 13:26:32 PST 2011
https://bugs.freedesktop.org/show_bug.cgi?id=43096
Bug #: 43096
Summary: r300g: r300_emit_draw_elements() refusing to render
when max_index = 0xffffffff
Classification: Unclassified
Product: Mesa
Version: git
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/Gallium/r300
AssignedTo: dri-devel at lists.freedesktop.org
ReportedBy: tstellar at gmail.com
Created attachment 53692
--> https://bugs.freedesktop.org/attachment.cgi?id=53692
Callstack from error message
I'm not exactly sure if this is a bug in r300g or st/mesa, but none of the
leader portraits are rendered in Civ4 and this error message is being printed:
r300: Got a huge number of vertices: 310, refusing to render (max_index: -1).
The reason this error message is being printed is because max_index is
0xffffffff, so this if statement at r300_render.c:448 evaluates to true:
if (count >= (1 << 24) || max_index >= (1 << 24)) {
fprintf(stderr, "r300: Got a huge number of vertices: %i, "
"refusing to render (max_index: %i).\n", count, max_index);
return;
}
I'm not sure if the state tracker is wrong for passing 0xffffffff as the
max_index or if the driver needs to handle a max_index of 0xffffffff as a
special case, because it is the default value for pipe_draw_info->max_index. I
have captured the call stack when this error message is printed and attached it
to this bug report.
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