diff options
| -rw-r--r-- | src/mesa/main/ffvertex_prog.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c index 06710f405d8..d71e0c00fdb 100644 --- a/src/mesa/main/ffvertex_prog.c +++ b/src/mesa/main/ffvertex_prog.c @@ -975,19 +975,19 @@ static void emit_degenerate_lit( struct tnl_program *p, { struct ureg id = get_identity_param(p); - /* Note that result.x & result.w will not be examined. Note also that - * dots.xyzw == dots.xxxx. + /* 1, 0, 0, 1 */ + emit_op1(p, OPCODE_MOV, lit, 0, swizzle(id, Z, X, X, Z)); - /* result[1] = MAX2(in, 0) + /* 1, MAX2(in[0], 0), 0, 1 */ - emit_op2(p, OPCODE_MAX, lit, 0, id, dots); + emit_op2(p, OPCODE_MAX, lit, WRITEMASK_Y, lit, swizzle1(dots, X)); - /* result[2] = (in > 0 ? 1 : 0) + /* 1, MAX2(in[0], 0), (in[0] > 0 ? 1 : 0), 1 */ emit_op2(p, OPCODE_SLT, lit, WRITEMASK_Z, lit, /* 0 */ - dots); /* in[0] */ + swizzle1(dots, X)); /* in[0] */ } @@ -1144,13 +1144,10 @@ static void build_lighting( struct tnl_program *p ) /* Calculate dot products: */ - if (p->state->material_shininess_is_zero) { - emit_op2(p, OPCODE_DP3, dots, 0, normal, VPpli); - } - else { - emit_op2(p, OPCODE_DP3, dots, WRITEMASK_X, normal, VPpli); + emit_op2(p, OPCODE_DP3, dots, WRITEMASK_X, normal, VPpli); + + if (!p->state->material_shininess_is_zero) emit_op2(p, OPCODE_DP3, dots, WRITEMASK_Y, normal, half); - } /* Front face lighting: */ |