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freedreno/ir3: fix GETLOD for negative LODs

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Note: for output type U32, negative LOD is not sign extended from 16 bits

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Rob Clark <robclark@gmail.com>
This commit is contained in:
Jonathan Marek
2019-10-07 16:21:09 -04:00
parent cfc6a3e394
commit 3cfd5ffb8c
1 changed files with 2 additions and 2 deletions
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src/freedreno/ir3/ir3_compiler_nir.c
+2 -2
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@@ -1918,7 +1918,7 @@ emit_tex(struct ir3_context *ctx, nir_tex_instr *tex)
}
if (opc == OPC_GETLOD)
type = TYPE_U32;
type = TYPE_S32;
struct ir3_instruction *samp_tex;
@@ -1970,7 +1970,7 @@ emit_tex(struct ir3_context *ctx, nir_tex_instr *tex)
compile_assert(ctx, tex->dest_type == nir_type_float);
for (i = 0; i < 2; i++) {
dst[i] = ir3_MUL_F(b, ir3_COV(b, dst[i], TYPE_U32, TYPE_F32), 0,
dst[i] = ir3_MUL_F(b, ir3_COV(b, dst[i], TYPE_S32, TYPE_F32), 0,
factor, 0);
}
}