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path: root/src/mesa/drivers/dri/i965/brw_vs_emit.c
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Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_vs_emit.c')
-rw-r--r--src/mesa/drivers/dri/i965/brw_vs_emit.c67
1 files changed, 41 insertions, 26 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c
index 4a9541378f..80ff7437ba 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c
@@ -73,8 +73,6 @@ static void brw_vs_alloc_regs( struct brw_vs_compile *c )
c->prog_data.curb_read_length = reg - 1;
-
-
/* Allocate input regs:
*/
c->nr_inputs = 0;
@@ -84,8 +82,7 @@ static void brw_vs_alloc_regs( struct brw_vs_compile *c )
c->regs[PROGRAM_INPUT][i] = brw_vec8_grf(reg, 0);
reg++;
}
- }
-
+ }
/* Allocate outputs: TODO: could organize the non-position outputs
* to go straight into message regs.
@@ -339,6 +336,7 @@ static void emit_math1( struct brw_vs_compile *c,
}
}
+
static void emit_math2( struct brw_vs_compile *c,
GLuint function,
struct brw_reg dst,
@@ -370,7 +368,6 @@ static void emit_math2( struct brw_vs_compile *c,
release_tmp(c, tmp);
}
}
-
static void emit_exp_noalias( struct brw_vs_compile *c,
@@ -521,8 +518,6 @@ static void emit_log_noalias( struct brw_vs_compile *c,
}
-
-
/* Need to unalias - consider swizzles: r0 = DST r0.xxxx r1
*/
static void emit_dst_noalias( struct brw_vs_compile *c,
@@ -544,6 +539,7 @@ static void emit_dst_noalias( struct brw_vs_compile *c,
brw_MOV(p, brw_writemask(dst, WRITEMASK_W), arg1);
}
+
static void emit_xpd( struct brw_compile *p,
struct brw_reg dst,
struct brw_reg t,
@@ -554,7 +550,6 @@ static void emit_xpd( struct brw_compile *p,
}
-
static void emit_lit_noalias( struct brw_vs_compile *c,
struct brw_reg dst,
struct brw_reg arg0 )
@@ -596,7 +591,29 @@ 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 / sqrt(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!
@@ -634,7 +651,6 @@ static struct brw_reg get_reg( struct brw_vs_compile *c,
}
-
static struct brw_reg deref( struct brw_vs_compile *c,
struct brw_reg arg,
GLint offset)
@@ -728,8 +744,6 @@ static struct brw_reg get_dst( struct brw_vs_compile *c,
}
-
-
static void emit_swz( struct brw_vs_compile *c,
struct brw_reg dst,
struct prog_src_register src )
@@ -801,8 +815,8 @@ static void emit_swz( struct brw_vs_compile *c,
}
-
-/* Post-vertex-program processing. Send the results to the URB.
+/**
+ * Post-vertex-program processing. Send the results to the URB.
*/
static void emit_vertex_write( struct brw_vs_compile *c)
{
@@ -817,7 +831,6 @@ static void emit_vertex_write( struct brw_vs_compile *c)
get_reg(c, PROGRAM_INPUT, VERT_ATTRIB_EDGEFLAG));
}
-
/* Build ndc coords */
if (!c->key.know_w_is_one) {
ndc = get_tmp(c);
@@ -848,7 +861,6 @@ static void emit_vertex_write( struct brw_vs_compile *c)
brw_AND(p, brw_writemask(header1, WRITEMASK_W), header1, brw_imm_ud(0x7ff<<8));
}
-
for (i = 0; i < c->key.nr_userclip; i++) {
brw_set_conditionalmod(p, BRW_CONDITIONAL_L);
brw_DP4(p, brw_null_reg(), pos, c->userplane[i]);
@@ -856,7 +868,6 @@ static void emit_vertex_write( struct brw_vs_compile *c)
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
}
-
/* i965 clipping workaround:
* 1) Test for -ve rhw
* 2) If set,
@@ -888,14 +899,12 @@ static void emit_vertex_write( struct brw_vs_compile *c)
brw_MOV(p, retype(brw_message_reg(1), BRW_REGISTER_TYPE_UD), brw_imm_ud(0));
}
-
/* Emit the (interleaved) headers for the two vertices - an 8-reg
* of zeros followed by two sets of NDC coordinates:
*/
brw_set_access_mode(p, BRW_ALIGN_1);
brw_MOV(p, offset(m0, 2), ndc);
brw_MOV(p, offset(m0, 3), pos);
-
brw_urb_WRITE(p,
brw_null_reg(), /* dest */
@@ -909,9 +918,9 @@ static void emit_vertex_write( struct brw_vs_compile *c)
1, /* writes complete */
0, /* urb destination offset */
BRW_URB_SWIZZLE_INTERLEAVE);
-
}
+
static void
post_vs_emit( struct brw_vs_compile *c, struct brw_instruction *end_inst )
{
@@ -1035,6 +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;
@@ -1102,7 +1117,7 @@ void brw_vs_emit(struct brw_vs_compile *c )
break;
case OPCODE_SGT:
emit_sgt(p, dst, args[0], args[1]);
- break;
+ break;
case OPCODE_SLT:
emit_slt(p, dst, args[0], args[1]);
break;
@@ -1136,7 +1151,7 @@ void brw_vs_emit(struct brw_vs_compile *c )
brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
brw_ADD(p, brw_ip_reg(), brw_ip_reg(), brw_imm_d(1*16));
brw_set_predicate_control_flag_value(p, 0xff);
- break;
+ break;
case OPCODE_CAL:
brw_set_access_mode(p, BRW_ALIGN_1);
brw_ADD(p, deref_1d(stack_index, 0), brw_ip_reg(), brw_imm_d(3*16));
@@ -1145,7 +1160,7 @@ void brw_vs_emit(struct brw_vs_compile *c )
get_addr_reg(stack_index), brw_imm_d(4));
inst->Data = &p->store[p->nr_insn];
brw_ADD(p, brw_ip_reg(), brw_ip_reg(), brw_imm_d(1*16));
- break;
+ break;
case OPCODE_RET:
brw_ADD(p, get_addr_reg(stack_index),
get_addr_reg(stack_index), brw_imm_d(-4));
@@ -1154,17 +1169,17 @@ void brw_vs_emit(struct brw_vs_compile *c )
brw_set_access_mode(p, BRW_ALIGN_16);
case OPCODE_END:
brw_ADD(p, brw_ip_reg(), brw_ip_reg(), brw_imm_d(1*16));
- break;
+ break;
case OPCODE_PRINT:
case OPCODE_BGNSUB:
case OPCODE_ENDSUB:
+ /* 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)
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-09 20:57:19 +0000