diff options
| author | Eric Anholt <[email protected]> | 2014-09-30 13:27:36 -0700 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2014-10-08 22:47:39 +0200 |
| commit | ef9914aa7481e483d6a12f35ed4eb46b26d17235 (patch) | |
| tree | 1d5b7d7f883586a8310c9232b7af7bf833535fc1 /src | |
| parent | 9773d4590817f3714065b2e8c301c34aa40e30c1 (diff) | |
vc4: Enable LIT lowering in TGSI instead of our own code.
This brings us the -128/128 clamping on the w component.
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/vc4/vc4_program.c | 36 |
1 files changed, 1 insertions, 35 deletions
diff --git a/src/gallium/drivers/vc4/vc4_program.c b/src/gallium/drivers/vc4/vc4_program.c index f1f014532b1..93f99566c52 100644 --- a/src/gallium/drivers/vc4/vc4_program.c +++ b/src/gallium/drivers/vc4/vc4_program.c @@ -491,40 +491,6 @@ tgsi_to_qir_mad(struct vc4_compile *c, } static struct qreg -tgsi_to_qir_lit(struct vc4_compile *c, - struct tgsi_full_instruction *tgsi_inst, - enum qop op, struct qreg *src, int i) -{ - struct qreg x = src[0 * 4 + 0]; - struct qreg y = src[0 * 4 + 1]; - struct qreg w = src[0 * 4 + 3]; - - switch (i) { - case 0: - case 3: - return qir_uniform_f(c, 1.0); - case 1: - return qir_FMAX(c, src[0 * 4 + 0], qir_uniform_f(c, 0.0)); - case 2: { - struct qreg zero = qir_uniform_f(c, 0.0); - - qir_SF(c, x); - /* XXX: Clamp w to -128..128 */ - return qir_SEL_X_0_NC(c, - qir_EXP2(c, qir_FMUL(c, - w, - qir_LOG2(c, - qir_FMAX(c, - y, - zero))))); - } - default: - assert(!"not reached"); - return c->undef; - } -} - -static struct qreg tgsi_to_qir_lrp(struct vc4_compile *c, struct tgsi_full_instruction *tgsi_inst, enum qop op, struct qreg *src, int i) @@ -1097,7 +1063,6 @@ emit_tgsi_instruction(struct vc4_compile *c, [TGSI_OPCODE_RSQ] = { QOP_RSQ, tgsi_to_qir_scalar }, [TGSI_OPCODE_EX2] = { QOP_EXP2, tgsi_to_qir_scalar }, [TGSI_OPCODE_LG2] = { QOP_LOG2, tgsi_to_qir_scalar }, - [TGSI_OPCODE_LIT] = { 0, tgsi_to_qir_lit }, [TGSI_OPCODE_LRP] = { 0, tgsi_to_qir_lrp }, [TGSI_OPCODE_TRUNC] = { 0, tgsi_to_qir_trunc }, [TGSI_OPCODE_FRC] = { 0, tgsi_to_qir_frc }, @@ -1720,6 +1685,7 @@ vc4_shader_state_create(struct pipe_context *pctx, .lower_XPD = true, .lower_SCS = true, .lower_POW = true, + .lower_LIT = true, .lower_EXP = true, .lower_LOG = true, .lower_DP4 = true, |