summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--src/mesa/state_tracker/st_atifs_to_tgsi.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/src/mesa/state_tracker/st_atifs_to_tgsi.c b/src/mesa/state_tracker/st_atifs_to_tgsi.c
index 9c4218e6723..64879f1b277 100644
--- a/src/mesa/state_tracker/st_atifs_to_tgsi.c
+++ b/src/mesa/state_tracker/st_atifs_to_tgsi.c
@@ -619,7 +619,6 @@ struct tgsi_atifs_transform {
const struct st_fp_variant_key *key;
bool first_instruction_emitted;
unsigned fog_factor_temp;
- unsigned fog_clamp_imm;
};
static inline struct tgsi_atifs_transform *
@@ -676,10 +675,6 @@ transform_instr(struct tgsi_transform_context *tctx,
/* add a new temp for the fog factor */
ctx->fog_factor_temp = ctx->info.file_max[TGSI_FILE_TEMPORARY] + 1;
tgsi_transform_temp_decl(tctx, ctx->fog_factor_temp);
-
- /* add immediates for clamp */
- ctx->fog_clamp_imm = ctx->info.immediate_count;
- tgsi_transform_immediate_decl(tctx, 1.0f, 0.0f, 0.0f, 0.0f);
}
transform_inst:
@@ -790,17 +785,16 @@ transform_inst:
inst.Src[0].Register.Negate ^= 1;
tctx->emit_instruction(tctx, &inst);
}
- /* f = CLAMP(f, 0.0, 1.0) */
+ /* f = saturate(f) */
inst = tgsi_default_full_instruction();
- inst.Instruction.Opcode = TGSI_OPCODE_CLAMP;
+ inst.Instruction.Opcode = TGSI_OPCODE_MOV;
inst.Instruction.NumDstRegs = 1;
+ inst.Instruction.Saturate = 1;
inst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
inst.Dst[0].Register.Index = ctx->fog_factor_temp;
inst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_XYZW;
- inst.Instruction.NumSrcRegs = 3;
+ inst.Instruction.NumSrcRegs = 1;
SET_SRC(&inst, 0, TGSI_FILE_TEMPORARY, ctx->fog_factor_temp, X, Y, Z, W);
- SET_SRC(&inst, 1, TGSI_FILE_IMMEDIATE, ctx->fog_clamp_imm, Y, Y, Y, Y); // 0.0
- SET_SRC(&inst, 2, TGSI_FILE_IMMEDIATE, ctx->fog_clamp_imm, X, X, X, X); // 1.0
tctx->emit_instruction(tctx, &inst);
/* REG0 = LRP(f, REG0, fogcolor) */