GLTeapot crashed at 8-bit/pixel setting

[cocobean]

When changing Screen color setting preferences to 8-bits/pixel, GLTeapot crashed.

NOTE: No issues with 15/16/32 bits/pixel color setting. This works fine using the Intel and VESA video drivers.

[kallisti5]

hm. I remember seeing this one in the past.

The Mesa 21 rewrite is likely even worse as a lot of 8bpp pixel mapping code was removed (legacy API's going away, changing, etc)

Not sure there's much we can do for this one before R1/beta3

[cocobean]

GLTeapot crash report on hrev55022 x86_gcc2

[cocobean]

GLTeapot reports 'Unsupported OpenGL color space' in the crash report. NOte: Mesa no longer supports 8bpp color depth (i.e. by default).

[rudolfc]

Hi, I agree (not sure this can be helped). This might very well be -not- an error of the driver after all (how often did you test this with other drivers recently?)

[cocobean]

R1B3 tested. Haiku desktop switches to 8 bits/pixel color selection without issue.

[X512]

If nothing was changed, BDirectWindow with direct rendering enabled supports only 32 bit mode. Non-32 bit modes require color conversion code. Maybe some existing Haiku code can be reused. Also Mesa may support native non-32 bit back buffer format, but I didn't tested.

[cocobean]

Resolved. GLTeapot does not support 8bpp at all, on any video driver.

1. Originally, I tested with the GLTeapot already running when I changed the video driver's color space setting. GLTeapot remained functional on some video drivers, but triggerred the error on the Nvidia video driver.

2. Second test. If GLTeapot is (re)started with the video driver's color space setting is 8bpp - GLTeapot crashes immediately with the same error (using any of the mentioned video drivers). GLTeapot works fine in the 16bpp/32bpp color settings with the same video drivers.

[kallisti5]

Like I said... this isn't a video card driver issue. This is a mesa issue. Mesa (llvmsoftpipe) works the same on intel vs vesa vs radeon_hd.

[rudolfc]

So, Shall I close this ticket or can someone reassign/update it to reflect the real problem? Thank you for updating the status! :-)

[cocobean]

Resolved with Haiku's Mesa 21.2.0. No further issues. Please close this ticket.