mesa no longer supports swrast starting with version 21

mesa no longer supports swrast starting with version 21

[Carlos Rafael Giani]

Beginning with version 21, swrast is no more: 
https://www.phoronix.com/scan.php?page=news_item&px=Mesa-Kills-SWRAST

As a consequence, trying to build mesa with the meta-freescale bbappends 
and openembedded-core (both latest master) produces this error:

     ../mesa-21.0.1/meson.build:21:0: ERROR: Options "swrast" are not in 
allowed choices: "auto, i915, i965, r100, r200, nouveau"

Did anybody already look into this? According to the article, swrast was 
replaced with llvmpipe. It is not clear to me why swrast was ever used, 
however:

     # For parts with GPU and DRM, use osmesa, dri, and swrast
     PACKAGECONFIG_REMOVE_NXPBSP_imxgpu_imxdrm = "gallium"
     PACKAGECONFIG_APPEND_NXPBSP_imxgpu_imxdrm = "osmesa"
     DRIDRIVERS_NXPBSP_imxgpu_imxdrm           = "swrast"

Why did this need swrast for using DRM?

Re: [meta-freescale] mesa no longer supports swrast starting with version 21

[Tom Hochstein]

> -----Original Message-----
> From: meta-freescale@lists.yoctoproject.org <meta-freescale@lists.yoctoproject.org> On Behalf Of Carlos Rafael Giani via lists.yoctoproject.org
> 
> Did anybody already look into this? According to the article, swrast was replaced
> with llvmpipe. It is not clear to me why swrast was ever used,
> however:
> 
>      # For parts with GPU and DRM, use osmesa, dri, and swrast
>      PACKAGECONFIG_REMOVE_NXPBSP_imxgpu_imxdrm = "gallium"
>      PACKAGECONFIG_APPEND_NXPBSP_imxgpu_imxdrm = "osmesa"
>      DRIDRIVERS_NXPBSP_imxgpu_imxdrm           = "swrast"
> 
> Why did this need swrast for using DRM?

It seems these changes originated here [1] to fix a build issue. See [2].

[1] https://github.com/Freescale/meta-freescale/commit/3b0fc734634f8f0db1f48fc13c64cacd3d99dd92
[2] https://github.com/Freescale/meta-freescale/issues/699

Re: [meta-freescale] mesa no longer supports swrast starting with version 21

[Carlos Rafael Giani]

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Ah, right. I'm still not that used to going to Github for meta-freescale 
issues :)

On 13.04.21 16:44, Tom Hochstein wrote:
>> -----Original Message-----
>> From: meta-freescale@lists.yoctoproject.org <meta-freescale@lists.yoctoproject.org> On Behalf Of Carlos Rafael Giani via lists.yoctoproject.org
>>
>> Did anybody already look into this? According to the article, swrast was replaced
>> with llvmpipe. It is not clear to me why swrast was ever used,
>> however:
>>
>>       # For parts with GPU and DRM, use osmesa, dri, and swrast
>>       PACKAGECONFIG_REMOVE_NXPBSP_imxgpu_imxdrm = "gallium"
>>       PACKAGECONFIG_APPEND_NXPBSP_imxgpu_imxdrm = "osmesa"
>>       DRIDRIVERS_NXPBSP_imxgpu_imxdrm           = "swrast"
>>
>> Why did this need swrast for using DRM?
> It seems these changes originated here [1] to fix a build issue. See [2].
>
> [1] https://github.com/Freescale/meta-freescale/commit/3b0fc734634f8f0db1f48fc13c64cacd3d99dd92
> [2] https://github.com/Freescale/meta-freescale/issues/699
>
> 
>

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