diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_sf_emit.c')
-rw-r--r-- | src/mesa/drivers/dri/i965/brw_sf_emit.c | 95 |
1 files changed, 95 insertions, 0 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..5e86e428fa 100644 --- a/src/mesa/drivers/dri/i965/brw_sf_emit.c +++ b/src/mesa/drivers/dri/i965/brw_sf_emit.c @@ -497,6 +497,86 @@ void brw_emit_line_setup( struct brw_sf_compile *c ) } } +void brw_emit_point_sprite_setup( struct brw_sf_compile *c ) +{ + struct brw_compile *p = &c->func; + GLuint i; + + c->nr_verts = 1; + 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_UPPER_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_UPPER_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!) @@ -561,6 +641,7 @@ 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)); @@ -582,7 +663,9 @@ 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_push_insn_state(p); brw_emit_tri_setup( c ); + brw_pop_insn_state(p); /* note - thread killed in subroutine */ } brw_land_fwd_jump(p, jmp); @@ -596,11 +679,23 @@ 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_push_insn_state(p); brw_emit_line_setup( c ); + brw_pop_insn_state(p); /* note - thread killed in subroutine */ } brw_land_fwd_jump(p, jmp); + 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)); + { + brw_push_insn_state(p); + brw_emit_point_sprite_setup( c ); + brw_pop_insn_state(p); + } + brw_land_fwd_jump(p, jmp); + brw_emit_point_setup( c ); } |