| Summary: | [r300g] too many texture indirections (was: fails to compile some fragment programs of Enemy Territory: Quake Wars) | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | almos <aaalmosss> |
| Component: | Drivers/DRI/r300 | Assignee: | Default DRI bug account <dri-devel> |
| Status: | RESOLVED FIXED | QA Contact: | |
| Severity: | normal | ||
| Priority: | medium | ||
| Version: | git | ||
| Hardware: | x86 (IA32) | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Attachments: | stderr with RADEON_DEBUG=fp | ||
my gpu is an rv350 (radeon 9600xt) The failing shader:
FRAG
DCL IN[0], GENERIC[0], PERSPECTIVE
DCL IN[1], GENERIC[1], PERSPECTIVE
DCL IN[2], GENERIC[2], PERSPECTIVE
DCL IN[3], GENERIC[3], PERSPECTIVE
DCL IN[4], GENERIC[4], PERSPECTIVE
DCL IN[5], GENERIC[5], PERSPECTIVE
DCL IN[6], GENERIC[6], PERSPECTIVE
DCL IN[7], GENERIC[7], PERSPECTIVE
DCL OUT[0], COLOR
DCL SAMP[0]
DCL TEMP[0..1]
IMM FLT32 { 0.0714, 0.1071, 0.1429, 0.1786}
0: TEX TEMP[0], IN[1], SAMP[0], RECT
1: MUL TEMP[1], TEMP[0], IMM[0].yyyy
2: TEX TEMP[0], IN[0], SAMP[0], RECT
3: MAD TEMP[1], TEMP[0], IMM[0].xxxx, TEMP[1]
4: TEX TEMP[0], IN[2], SAMP[0], RECT
5: MAD TEMP[1], TEMP[0], IMM[0].zzzz, TEMP[1]
6: TEX TEMP[0], IN[3], SAMP[0], RECT
7: MAD TEMP[1], TEMP[0], IMM[0].wwww, TEMP[1]
8: TEX TEMP[0], IN[4], SAMP[0], RECT
9: MAD TEMP[1], TEMP[0], IMM[0].wwww, TEMP[1]
10: TEX TEMP[0], IN[5], SAMP[0], RECT
11: MAD TEMP[1], TEMP[0], IMM[0].zzzz, TEMP[1]
12: TEX TEMP[0], IN[6], SAMP[0], RECT
13: MAD TEMP[1], TEMP[0], IMM[0].yyyy, TEMP[1]
14: TEX TEMP[0], IN[7], SAMP[0], RECT
15: MAD OUT[0], TEMP[0], IMM[0].xxxx, TEMP[1]
16: END
If we reorder all the instructions, rename a few registers etc. we will end up with 1 TEX block. This seems to be the third TEX scheduling bug in the compiler we know about.
This should be fixed by commit 8a8e311d8c3c60982d101826a4aa013672730e6c. Can you try again with the latest git code? Fix confirmed. It doesn't print error messages, and the trees are not black anymore. OK, closing.. |
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.
Created attachment 36379 [details] stderr with RADEON_DEBUG=fp The driver prints the following: r300compiler error: r300_fragprog_emit.c::begin_tex(): Too many texture indirections r300 FP: Compiler Error: r300_fragprog_emit.c::begin_tex(): Too many texture indirections Using a dummy shader instead. The attached log is done with RADEON_DEBUG=fp. It is stderr only, because et:qw fails to start (stops at 'loading UI') if stdout is redirected as well.