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List: wine-devel
Subject: Re: [1/5] wined3d: Add missing temporary variable declaration to ARB
From: Stefan_Dösinger <stefandoesinger () gmx ! at>
Date: 2011-04-29 9:49:00
Message-ID: D5D9B42B-7C8D-42D1-8F49-9BC93377068A () gmx ! at
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Am 29.04.2011 um 00:39 schrieb Matteo Bruni:
> 2011/4/29 Stefan Dösinger <stefandoesinger@gmx.at>:
>>> + shader_addline(buffer, "TEMP TB;\n");
>> Which shader instruction uses this? Afair vertex shaders should only use TA,
>> but there's no proper infrastructure that manages that.
>>
>
> AFAICS, TB could get used in shader_hw_pow():
>
> ...
> shader_arb_get_src_param(ins, &ins->src[1], 1, src1);
> ...
>
> where the '1' in the third argument means that
> shader_arb_get_src_param() is allowed to use TB as temporary storage.
> There may be other pieces of code with the same assumption, I didn't
> look deeper.
Ok
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<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; \
-webkit-line-break: after-white-space; "><br><div><div>Am 29.04.2011 um 00:39 schrieb \
Matteo Bruni:</div><br class="Apple-interchange-newline"><blockquote \
type="cite"><div>2011/4/29 Stefan Dösinger <<a \
href="mailto:stefandoesinger@gmx.at">stefandoesinger@gmx.at</a>>:<br><blockquote \
type="cite"><blockquote type="cite">+ shader_addline(buffer, "TEMP \
TB;\n");<br></blockquote></blockquote><blockquote type="cite">Which shader \
instruction uses this? Afair vertex shaders should only use \
TA,<br></blockquote><blockquote type="cite">but there's no proper infrastructure that \
manages that.<br></blockquote><blockquote type="cite"><br></blockquote><br>AFAICS, TB \
could get used in shader_hw_pow():<br><br>...<br> \
shader_arb_get_src_param(ins, &ins->src[1], 1, \
src1);<br>...<br><br>where the '1' in the third argument means \
that<br>shader_arb_get_src_param() is allowed to use TB as temporary \
storage.<br>There may be other pieces of code with the same assumption, I \
didn't<br>look deeper.<font class="Apple-style-span" color="#000000"><font \
class="Apple-style-span" \
color="#144FAE"><br></font></font></div></blockquote>Ok</div><div><br></div></body></html>
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