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authorChristoph Bumiller <[email protected]>2009-12-30 20:54:58 +0100
committerChristoph Bumiller <[email protected]>2009-12-31 14:34:34 +0100
commitd9ae8f31d5e687fae412edf888028cce69b039f0 (patch)
treeff80a8698f3d75ea13b2a72ae19997b7f779692c /src/gallium/drivers
parentf2cca04bd87547f8a76d87f4cd9b585de0cf40de (diff)
nv50: handle TGSI_OPCODE_EXP,LOG
Not that they make much sense on nv50, but we also do LIT ...
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/nv50/nv50_program.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index 1847e8ab4cd..a85587b9869 100644
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -1840,7 +1840,9 @@ nv50_tgsi_src_mask(const struct tgsi_full_instruction *insn, int c)
case TGSI_OPCODE_DST:
return mask & (c ? 0xa : 0x6);
case TGSI_OPCODE_EX2:
+ case TGSI_OPCODE_EXP:
case TGSI_OPCODE_LG2:
+ case TGSI_OPCODE_LOG:
case TGSI_OPCODE_POW:
case TGSI_OPCODE_RCP:
case TGSI_OPCODE_RSQ:
@@ -2062,6 +2064,8 @@ nv50_tgsi_dst_revdep(unsigned op, int s, int c)
assert(0);
return 0x0;
}
+ case TGSI_OPCODE_EXP:
+ case TGSI_OPCODE_LOG:
case TGSI_OPCODE_LIT:
case TGSI_OPCODE_SCS:
case TGSI_OPCODE_TEX:
@@ -2366,6 +2370,33 @@ nv50_program_tx_insn(struct nv50_pc *pc,
emit_preex2(pc, temp, src[0][0]);
emit_flop(pc, NV50_FLOP_EX2, brdc, temp);
break;
+ case TGSI_OPCODE_EXP:
+ {
+ struct nv50_reg *t[2];
+
+ assert(!temp);
+ t[0] = temp_temp(pc);
+ t[1] = temp_temp(pc);
+
+ if (mask & 0x6)
+ emit_mov(pc, t[0], src[0][0]);
+ if (mask & 0x3)
+ emit_flr(pc, t[1], src[0][0]);
+
+ if (mask & (1 << 1))
+ emit_sub(pc, dst[1], t[0], t[1]);
+ if (mask & (1 << 0)) {
+ emit_preex2(pc, t[1], t[1]);
+ emit_flop(pc, NV50_FLOP_EX2, dst[0], t[1]);
+ }
+ if (mask & (1 << 2)) {
+ emit_preex2(pc, t[0], t[0]);
+ emit_flop(pc, NV50_FLOP_EX2, dst[2], t[0]);
+ }
+ if (mask & (1 << 3))
+ emit_mov_immdval(pc, dst[3], 1.0f);
+ }
+ break;
case TGSI_OPCODE_FLR:
for (c = 0; c < 4; c++) {
if (!(mask & (1 << c)))
@@ -2406,6 +2437,34 @@ nv50_program_tx_insn(struct nv50_pc *pc,
case TGSI_OPCODE_LG2:
emit_flop(pc, NV50_FLOP_LG2, brdc, src[0][0]);
break;
+ case TGSI_OPCODE_LOG:
+ {
+ struct nv50_reg *t[2];
+
+ t[0] = temp_temp(pc);
+ if (mask & (1 << 1))
+ t[1] = temp_temp(pc);
+ else
+ t[1] = t[0];
+
+ emit_abs(pc, t[0], src[0][0]);
+ emit_flop(pc, NV50_FLOP_LG2, t[1], t[0]);
+ if (mask & (1 << 2))
+ emit_mov(pc, dst[2], t[1]);
+ emit_flr(pc, t[1], t[1]);
+ if (mask & (1 << 0))
+ emit_mov(pc, dst[0], t[1]);
+ if (mask & (1 << 1)) {
+ t[1]->mod = NV50_MOD_NEG;
+ emit_preex2(pc, t[1], t[1]);
+ t[1]->mod = 0;
+ emit_flop(pc, NV50_FLOP_EX2, t[1], t[1]);
+ emit_mul(pc, dst[1], t[0], t[1]);
+ }
+ if (mask & (1 << 3))
+ emit_mov_immdval(pc, dst[3], 1.0f);
+ }
+ break;
case TGSI_OPCODE_LRP:
temp = temp_temp(pc);
for (c = 0; c < 4; c++) {