summaryrefslogtreecommitdiffstats
path: root/src/gallium
diff options
context:
space:
mode:
authorEric Anholt <[email protected]>2014-07-16 08:44:50 -0700
committerEric Anholt <[email protected]>2014-08-08 18:59:47 -0700
commit63e49da0a58d6579162f12b4c8e68696eeb6c833 (patch)
tree780051ba7de0abcb408d049441029b6e18292372 /src/gallium
parent0e182e7d8f6de9eef7e9b2fe5288072b7d9a6093 (diff)
vc4: Add support for the POW opcode
v2: Rebase on helpers.
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/drivers/vc4/vc4_program.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/gallium/drivers/vc4/vc4_program.c b/src/gallium/drivers/vc4/vc4_program.c
index c82e0cc17c2..005b986829a 100644
--- a/src/gallium/drivers/vc4/vc4_program.c
+++ b/src/gallium/drivers/vc4/vc4_program.c
@@ -244,6 +244,20 @@ tgsi_to_qir_lrp(struct tgsi_to_qir *trans,
}
static struct qreg
+tgsi_to_qir_pow(struct tgsi_to_qir *trans,
+ struct tgsi_full_instruction *tgsi_inst,
+ enum qop op, struct qreg *src, int i)
+{
+ struct qcompile *c = trans->c;
+
+ /* Note that this instruction replicates its result from the x channel
+ */
+ return qir_EXP2(c, qir_FMUL(c,
+ src[1 * 4 + 0],
+ qir_LOG2(c, src[0 * 4 + 0])));
+}
+
+static struct qreg
tgsi_to_qir_dp(struct tgsi_to_qir *trans,
struct tgsi_full_instruction *tgsi_inst,
int num, struct qreg *src, int i)
@@ -360,6 +374,7 @@ emit_tgsi_instruction(struct tgsi_to_qir *trans,
[TGSI_OPCODE_LG2] = { QOP_LOG2, tgsi_to_qir_alu },
[TGSI_OPCODE_LIT] = { QOP_MOV, tgsi_to_qir_alu }, /* XXX */
[TGSI_OPCODE_LRP] = { 0, tgsi_to_qir_lrp },
+ [TGSI_OPCODE_POW] = { 0, tgsi_to_qir_pow },
};
static int asdf = 0;
uint32_t tgsi_op = tgsi_inst->Instruction.Opcode;