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Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_sf_emit.c')
-rw-r--r--src/mesa/drivers/dri/i965/brw_sf_emit.c169
1 files changed, 159 insertions, 10 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_sf_emit.c b/src/mesa/drivers/dri/i965/brw_sf_emit.c
index cbaf018c44..6fba8c8908 100644
--- a/src/mesa/drivers/dri/i965/brw_sf_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_sf_emit.c
@@ -59,6 +59,35 @@ static GLboolean have_attr(struct brw_sf_compile *c,
return (c->key.attrs & (1<<attr)) ? 1 : 0;
}
+/**
+ * Sets VERT_RESULT_FOGC.Y for gl_FrontFacing
+ *
+ * This is currently executed if the fragment program uses VERT_RESULT_FOGC
+ * at all, but this could be eliminated with a scan of the FP contents.
+ */
+static void
+do_front_facing( struct brw_sf_compile *c )
+{
+ struct brw_compile *p = &c->func;
+ int i;
+
+ if (!have_attr(c, VERT_RESULT_FOGC))
+ return;
+
+ brw_push_insn_state(p);
+ brw_CMP(p, brw_null_reg(),
+ c->key.frontface_ccw ? BRW_CONDITIONAL_G : BRW_CONDITIONAL_L,
+ c->det, brw_imm_f(0));
+ brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ for (i = 0; i < 3; i++) {
+ struct brw_reg fogc = get_vert_attr(c, c->vert[i],FRAG_ATTRIB_FOGC);
+ brw_MOV(p, get_element(fogc, 1), brw_imm_f(0));
+ brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
+ brw_MOV(p, get_element(fogc, 1), brw_imm_f(1));
+ brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ }
+ brw_pop_insn_state(p);
+}
/***********************************************************************
@@ -343,15 +372,19 @@ static GLboolean calculate_masks( struct brw_sf_compile *c,
-void brw_emit_tri_setup( struct brw_sf_compile *c )
+void brw_emit_tri_setup( struct brw_sf_compile *c, GLboolean allocate)
{
struct brw_compile *p = &c->func;
GLuint i;
c->nr_verts = 3;
- alloc_regs(c);
+
+ if (allocate)
+ alloc_regs(c);
+
invert_det(c);
copy_z_inv_w(c);
+ do_front_facing(c);
if (c->key.do_twoside_color)
do_twoside_color(c);
@@ -428,14 +461,17 @@ void brw_emit_tri_setup( struct brw_sf_compile *c )
-void brw_emit_line_setup( struct brw_sf_compile *c )
+void brw_emit_line_setup( struct brw_sf_compile *c, GLboolean allocate)
{
struct brw_compile *p = &c->func;
GLuint i;
c->nr_verts = 2;
- alloc_regs(c);
+
+ if (allocate)
+ alloc_regs(c);
+
invert_det(c);
copy_z_inv_w(c);
@@ -497,17 +533,103 @@ void brw_emit_line_setup( struct brw_sf_compile *c )
}
}
+void brw_emit_point_sprite_setup( struct brw_sf_compile *c, GLboolean allocate)
+{
+ struct brw_compile *p = &c->func;
+ GLuint i;
+
+ c->nr_verts = 1;
+
+ if (allocate)
+ alloc_regs(c);
+
+ copy_z_inv_w(c);
+ for (i = 0; i < c->nr_setup_regs; i++)
+ {
+ struct brw_sf_point_tex *tex = &c->point_attrs[c->idx_to_attr[2*i]];
+ struct brw_reg a0 = offset(c->vert[0], i);
+ GLushort pc, pc_persp, pc_linear;
+ GLboolean last = calculate_masks(c, i, &pc, &pc_persp, &pc_linear);
+
+ if (pc_persp)
+ {
+ if (!tex->CoordReplace) {
+ brw_set_predicate_control_flag_value(p, pc_persp);
+ brw_MUL(p, a0, a0, c->inv_w[0]);
+ }
+ }
+
+ if (tex->CoordReplace) {
+ /* Caculate 1.0/PointWidth */
+ brw_math(&c->func,
+ c->tmp,
+ BRW_MATH_FUNCTION_INV,
+ BRW_MATH_SATURATE_NONE,
+ 0,
+ c->dx0,
+ BRW_MATH_DATA_SCALAR,
+ BRW_MATH_PRECISION_FULL);
+
+ if (c->key.SpriteOrigin == GL_LOWER_LEFT) {
+ brw_MUL(p, c->m1Cx, c->tmp, c->inv_w[0]);
+ brw_MOV(p, vec1(suboffset(c->m1Cx, 1)), brw_imm_f(0.0));
+ brw_MUL(p, c->m2Cy, c->tmp, negate(c->inv_w[0]));
+ brw_MOV(p, vec1(suboffset(c->m2Cy, 0)), brw_imm_f(0.0));
+ } else {
+ brw_MUL(p, c->m1Cx, c->tmp, c->inv_w[0]);
+ brw_MOV(p, vec1(suboffset(c->m1Cx, 1)), brw_imm_f(0.0));
+ brw_MUL(p, c->m2Cy, c->tmp, c->inv_w[0]);
+ brw_MOV(p, vec1(suboffset(c->m2Cy, 0)), brw_imm_f(0.0));
+ }
+ } else {
+ brw_MOV(p, c->m1Cx, brw_imm_ud(0));
+ brw_MOV(p, c->m2Cy, brw_imm_ud(0));
+ }
+
+ {
+ brw_set_predicate_control_flag_value(p, pc);
+ if (tex->CoordReplace) {
+ if (c->key.SpriteOrigin == GL_LOWER_LEFT) {
+ brw_MUL(p, c->m3C0, c->inv_w[0], brw_imm_f(1.0));
+ brw_MOV(p, vec1(suboffset(c->m3C0, 0)), brw_imm_f(0.0));
+ }
+ else
+ brw_MOV(p, c->m3C0, brw_imm_f(0.0));
+ } else {
+ brw_MOV(p, c->m3C0, a0); /* constant value */
+ }
+
+ /* Copy m0..m3 to URB.
+ */
+ brw_urb_WRITE(p,
+ brw_null_reg(),
+ 0,
+ brw_vec8_grf(0, 0),
+ 0, /* allocate */
+ 1, /* used */
+ 4, /* msg len */
+ 0, /* response len */
+ last, /* eot */
+ last, /* writes complete */
+ i*4, /* urb destination offset */
+ BRW_URB_SWIZZLE_TRANSPOSE);
+ }
+ }
+}
/* Points setup - several simplifications as all attributes are
* constant across the face of the point (point sprites excluded!)
*/
-void brw_emit_point_setup( struct brw_sf_compile *c )
+void brw_emit_point_setup( struct brw_sf_compile *c, GLboolean allocate)
{
struct brw_compile *p = &c->func;
GLuint i;
c->nr_verts = 1;
- alloc_regs(c);
+
+ if (allocate)
+ alloc_regs(c);
+
copy_z_inv_w(c);
brw_MOV(p, c->m1Cx, brw_imm_ud(0)); /* zero - move out of loop */
@@ -561,10 +683,14 @@ void brw_emit_anyprim_setup( struct brw_sf_compile *c )
struct brw_compile *p = &c->func;
struct brw_reg ip = brw_ip_reg();
struct brw_reg payload_prim = brw_uw1_reg(BRW_GENERAL_REGISTER_FILE, 1, 0);
+ struct brw_reg payload_attr = get_element_ud(brw_vec1_reg(BRW_GENERAL_REGISTER_FILE, 1, 0), 0);
struct brw_reg primmask;
struct brw_instruction *jmp;
struct brw_reg v1_null_ud = vec1(retype(brw_null_reg(), BRW_REGISTER_TYPE_UD));
+
+ GLuint saveflag;
+ c->nr_verts = 3;
alloc_regs(c);
primmask = retype(get_element(c->tmp, 0), BRW_REGISTER_TYPE_UD);
@@ -582,8 +708,15 @@ void brw_emit_anyprim_setup( struct brw_sf_compile *c )
(1<<_3DPRIM_TRIFAN_NOSTIPPLE)));
jmp = brw_JMPI(p, ip, ip, brw_imm_w(0));
{
- brw_emit_tri_setup( c );
- /* note - thread killed in subroutine */
+ saveflag = p->flag_value;
+ brw_push_insn_state(p);
+ brw_emit_tri_setup( c, GL_FALSE );
+ brw_pop_insn_state(p);
+ p->flag_value = saveflag;
+ /* note - thread killed in subroutine, so must
+ * restore the flag which is changed when building
+ * the subroutine. fix #13240
+ */
}
brw_land_fwd_jump(p, jmp);
@@ -596,12 +729,28 @@ void brw_emit_anyprim_setup( struct brw_sf_compile *c )
(1<<_3DPRIM_LINESTRIP_CONT_BF)));
jmp = brw_JMPI(p, ip, ip, brw_imm_w(0));
{
- brw_emit_line_setup( c );
+ saveflag = p->flag_value;
+ brw_push_insn_state(p);
+ brw_emit_line_setup( c, GL_FALSE );
+ brw_pop_insn_state(p);
+ p->flag_value = saveflag;
/* note - thread killed in subroutine */
}
brw_land_fwd_jump(p, jmp);
- brw_emit_point_setup( c );
+ brw_set_conditionalmod(p, BRW_CONDITIONAL_Z);
+ brw_AND(p, v1_null_ud, payload_attr, brw_imm_ud(1<<BRW_SPRITE_POINT_ENABLE));
+ jmp = brw_JMPI(p, ip, ip, brw_imm_w(0));
+ {
+ saveflag = p->flag_value;
+ brw_push_insn_state(p);
+ brw_emit_point_sprite_setup( c, GL_FALSE );
+ brw_pop_insn_state(p);
+ p->flag_value = saveflag;
+ }
+ brw_land_fwd_jump(p, jmp);
+
+ brw_emit_point_setup( c, GL_FALSE );
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-05 20:07:17 +0000