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r300: Print warning when stubbing derivatives

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Fixes: e1c640c3a4
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14669>
(cherry picked from commit d48c10fab3)
This commit is contained in:
Filip Gawin 2022-01-23 17:41:43 +01:00 • committed by Dylan Baker
parent af570d37a7
commit 08e22fff13
2 changed files with 6 additions and 1 deletions
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2
.pick_status.json
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@ -31,7 +31,7 @@
"description": "r300: Print warning when stubbing derivatives",
"nominated": true,
"nomination_type": 1,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": "e1c640c3a43d741719864b35cbf855aa82be0611"
},

5
src/gallium/drivers/r300/compiler/radeon_program_alu.c
View file

@ -38,6 +38,7 @@
#include "radeon_compiler.h"
#include "radeon_compiler_util.h"
#include "util/log.h"
static struct rc_instruction *emit1(
struct radeon_compiler * c, struct rc_instruction * after,
@ -1100,6 +1101,10 @@ int radeonStubDeriv(struct radeon_compiler* c,
inst->U.I.Opcode = RC_OPCODE_MOV;
inst->U.I.SrcReg[0].Swizzle = RC_SWIZZLE_0000;
mesa_logw_once("r300: WARNING: Shader is trying to use derivatives, "
"but the hardware doesn't support it. "
"Expect possible misrendering (it's not a bug, do not report it).");
return 1;
}