[Mesa-dev] [PATCH 0/5] Head-up display for Gallium DRI2 drivers

[Marek Olšák]

I think this should be fixed in drivers.

Marek

On Tue, Mar 26, 2013 at 7:38 PM, Ondrej Holecek <aaannz at gmail.com> wrote:
> On Tuesday 26 of March 2013 15:18:06 Vadim Girlin wrote:
>> On 03/26/2013 02:00 AM, Marek Olšák wrote:
>> > On Mon, Mar 25, 2013 at 10:38 PM, Ondrej Holecek <aaannz at gmail.com> wrote:
>> >> On Saturday 23 of March 2013 00:50:59 Marek Olšák wrote:
>> ....
>> >
>> >> The third issue is that on both 32bit and 64bit build fonts are not
>> >> displayed in HUD. I see graphs and transparent background rectangles for
>> >> text but no text is visible. This one I did not yet solve.
>> >
>> > Your driver must support the I8_UNORM texture format.
>>
>> I think this also may be related to unexpected by some drivers TGSI
>> declaration of vertex shader inputs:
>>
>> DCL IN[0..1]
>>
> I can confirm that rewriting it into two separate declarations fixed the font
> issue for me, using r600 on rv770 hw.
>
>> At least r600g expects the separate declaration for each input, though
>> fortunately it still works in this case because parsed declarations of
>> VS inputs aren't really used in r600g. I noticed exactly the same issue
>> (missing text) with my r600-sb branch because it relies on the number of
>> the parsed inputs from r600g's tgsi translator. It's 1 in this case
>> instead of 2, so second input register is considered undefined and
>> optimized away.
>>
>> I suspect that some other drivers may also handle this declaration
>> incorrectly and this may explain the issue.
>>
>> Vadim
>>
>
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