ANGLE D3D11: Fix internal index buffer for level 9 hardware

Some level 9 hardware does not support 32-bit indices, and in most
places this is already checked. It would appear that most phone
hardware actually does support 32-bit indices, and so this bug wasn't
caught until testing on the Surface RT. This is not surprising, as some
level 9 resources are only a minimum for the hardware spec, not the
true limit of the device/driver.

This patch provides the general fix to use 16-bit indices on such
hardware, but a whitelist of known good GPUs should be added to enable
32-bit indices where available.

Change-Id: I282ede5dd4a323037ade6c44b7cfac2c6445b491
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@digia.com>

0 files changed, 0 insertions, 0 deletions