On 05/23/2013 03:46 PM, Kenneth Graunke wrote:
According to the documentation: "The Cut Index is compared to the
fetched (and possibly-sign-extended) vertex index, and if these values
are equal, the current primitive topology is terminated. Note that,
for index buffers <32bpp, it is possible to set the Cut Index to a
(large) value that will never match a sign-extended vertex index."
This suggests that we should not set the value to 0xFFFFFFFF for
unsigned byte or short index buffers, but rather 0xFF or 0xFFFF.
Fixes sporadic failures in the ES 3 instanced_arrays_primitive_restart
conformance test when run in combination with other tests. No Piglit
regressions.
Cc: Ian Romanick <i...@freedesktop.org
Cc: Paul Berry <stereotype...@gmail.com>
Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
NAK on this patch. It looks like 0x133700ff is not supposed to match
0xff in GL_UNSIGNED_BYTE mode. I think i've found a bunch more bugs.
Going to write some tests and new patches...
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