| Bug ID | 93936 |
|---|---|
| Summary | Snail shadertoy displays black quad |
| Product | Mesa |
| Version | 11.0 |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/Gallium/r600 |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | pavol@klacansky.com |
| QA Contact | dri-devel@lists.freedesktop.org |
The following shader displays black quad on AMD 3650 Mobility. I used Firefox 44. https://www.shadertoy.com/view/ld3Gz2h
Correct link https://www.shadertoy.com/view/ld3Gz2
Seems to work fine with radeonsi FWIW. Is there anything interesting in Firefox's stderr output? Maybe the r600 driver is failing to compile a shader.
This prints forever: EE /var/tmp/portage/media-libs/mesa-11.1.1/work/mesa-11.1.1/src/gallium/drivers/r600/r600_state_common.c:815 r600_shader_select - Failed to build shader variant (type=1) -1 EE /var/tmp/portage/media-libs/mesa-11.1.1/work/mesa-11.1.1/src/gallium/drivers/r600/r600_shader.c:161 r600_pipe_shader_create - translation from TGSI failed !
Same problem here, i see in logs -> also i saw that the hardcoded value for registers is 124, any reason for su= ch small number? r600_shader.c:3662 r600_shader_from_tgsi - GPR limit exceeded - shader requ= ires 230 registers
Some new register allocation in TGSI landed in v17.3 and was l= ater further improved. Could you recheck with version 17.3+ or, if that doesn't work, wi= th the current git?=20 On AMD 5450 and 6870 it works (the register limit is the same).
| What | Removed | Added |
|---|---|---|
| Status | NEW | RESOLVED |
| Resolution | --- | MOVED |
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this = link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/573.