diff options
| author | Brian Paul <[email protected]> | 2008-12-31 16:49:58 -0700 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2009-01-01 14:05:30 -0700 |
| commit | 131ac5b465d1f676ca2e592e4fecfcbc14b23b49 (patch) | |
| tree | dedecb452ec6bd991b56c9c6a32b9759b55c2dcd | |
| parent | 23b0ad4d7e9130a07fec1e968777dfa59bc1d54e (diff) | |
i965: implement OPCODE_NRM3/NRM4
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vs_emit.c | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c index ebd8a17f795..10f3e281908 100644 --- a/src/mesa/drivers/dri/i965/brw_vs_emit.c +++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c @@ -591,6 +591,31 @@ static void emit_lit_noalias( struct brw_vs_compile *c, } +/** 3 or 4-component vector normalization */ +static void emit_nrm( struct brw_vs_compile *c, + struct brw_reg dst, + struct brw_reg arg0, + int num_comps) +{ + struct brw_compile *p = &c->func; + struct brw_reg tmp = get_tmp(c); + + /* tmp = dot(arg0, arg0) */ + if (num_comps == 3) + brw_DP3(p, tmp, arg0, arg0); + else + brw_DP4(p, tmp, arg0, arg0); + + /* tmp = 1 / tmp */ + emit_math1(c, BRW_MATH_FUNCTION_RSQ, tmp, tmp, BRW_MATH_PRECISION_FULL); + + /* dst = arg0 * tmp */ + brw_MUL(p, dst, arg0, tmp); + + release_tmp(c, tmp); +} + + /* TODO: relative addressing! */ static struct brw_reg get_reg( struct brw_vs_compile *c, @@ -1019,6 +1044,12 @@ void brw_vs_emit(struct brw_vs_compile *c ) case OPCODE_DPH: brw_DPH(p, dst, args[0], args[1]); break; + case OPCODE_NRM3: + emit_nrm(c, dst, args[0], 3); + break; + case OPCODE_NRM4: + emit_nrm(c, dst, args[0], 4); + break; case OPCODE_DST: unalias2(c, dst, args[0], args[1], emit_dst_noalias); break; @@ -1145,11 +1176,10 @@ void brw_vs_emit(struct brw_vs_compile *c ) /* no-op instructions */ break; default: - _mesa_printf("Unsupported opcode %i (%s) in vertex shader\n", - inst->Opcode, inst->Opcode < MAX_OPCODE ? + _mesa_problem(NULL, "Unsupported opcode %i (%s) in vertex shader", + inst->Opcode, inst->Opcode < MAX_OPCODE ? _mesa_opcode_string(inst->Opcode) : "unknown"); - break; } if ((inst->DstReg.File == PROGRAM_OUTPUT) |