-static void emit_trunc( struct brw_wm_compile *c,
- const struct prog_instruction *inst)
-{
- int i;
- struct brw_compile *p = &c->func;
- GLuint mask = inst->DstReg.WriteMask;
- brw_set_saturate(p, inst->SaturateMode != SATURATE_OFF);
- for (i = 0; i < 4; i++) {
- if (mask & (1<<i)) {
- struct brw_reg src, dst;
- dst = get_dst_reg(c, inst, i);
- src = get_src_reg(c, inst, 0, i);
- brw_RNDZ(p, dst, src);
- }
- }
- brw_set_saturate(p, 0);
-}
-
-static void emit_mov( struct brw_wm_compile *c,
- const struct prog_instruction *inst)
-{
- int i;
- struct brw_compile *p = &c->func;
- GLuint mask = inst->DstReg.WriteMask;
- brw_set_saturate(p, inst->SaturateMode != SATURATE_OFF);
- for (i = 0; i < 4; i++) {
- if (mask & (1<<i)) {
- struct brw_reg src, dst;
- dst = get_dst_reg(c, inst, i);
- /* XXX some moves from immediate value don't work reliably!!! */
- /*src = get_src_reg_imm(c, inst, 0, i);*/
- src = get_src_reg(c, inst, 0, i);
- brw_MOV(p, dst, src);
- }
- }
- brw_set_saturate(p, 0);
-}
-
-static void emit_pixel_xy(struct brw_wm_compile *c,
- const struct prog_instruction *inst)
-{
- struct brw_reg r1 = brw_vec1_grf(1, 0);
- struct brw_reg r1_uw = retype(r1, BRW_REGISTER_TYPE_UW);
-
- struct brw_reg dst0, dst1;
- struct brw_compile *p = &c->func;
- GLuint mask = inst->DstReg.WriteMask;
-
- dst0 = get_dst_reg(c, inst, 0);
- dst1 = get_dst_reg(c, inst, 1);
- /* Calculate pixel centers by adding 1 or 0 to each of the
- * micro-tile coordinates passed in r1.
- */
- if (mask & WRITEMASK_X) {
- brw_ADD(p,
- vec8(retype(dst0, BRW_REGISTER_TYPE_UW)),
- stride(suboffset(r1_uw, 4), 2, 4, 0),
- brw_imm_v(0x10101010));
- }
-
- if (mask & WRITEMASK_Y) {
- brw_ADD(p,
- vec8(retype(dst1, BRW_REGISTER_TYPE_UW)),
- stride(suboffset(r1_uw, 5), 2, 4, 0),
- brw_imm_v(0x11001100));
- }
-}
-
-static void emit_delta_xy(struct brw_wm_compile *c,
- const struct prog_instruction *inst)
-{
- struct brw_reg r1 = brw_vec1_grf(1, 0);
- struct brw_reg dst0, dst1, src0, src1;
- struct brw_compile *p = &c->func;
- GLuint mask = inst->DstReg.WriteMask;
-
- dst0 = get_dst_reg(c, inst, 0);
- dst1 = get_dst_reg(c, inst, 1);
- src0 = get_src_reg(c, inst, 0, 0);
- src1 = get_src_reg(c, inst, 0, 1);
- /* Calc delta X,Y by subtracting origin in r1 from the pixel
- * centers.
- */
- if (mask & WRITEMASK_X) {
- brw_ADD(p,
- dst0,
- retype(src0, BRW_REGISTER_TYPE_UW),
- negate(r1));
- }
-
- if (mask & WRITEMASK_Y) {
- brw_ADD(p,
- dst1,
- retype(src1, BRW_REGISTER_TYPE_UW),
- negate(suboffset(r1,1)));
-
- }
-}
-
-static void fire_fb_write( struct brw_wm_compile *c,
- GLuint base_reg,
- GLuint nr,
- GLuint target,
- GLuint eot)
-{
- struct brw_compile *p = &c->func;
- /* Pass through control information:
- */
- /* mov (8) m1.0<1>:ud r1.0<8;8,1>:ud { Align1 NoMask } */
- {
- brw_push_insn_state(p);
- brw_set_mask_control(p, BRW_MASK_DISABLE); /* ? */
- brw_MOV(p,
- brw_message_reg(base_reg + 1),
- brw_vec8_grf(1, 0));
- brw_pop_insn_state(p);
- }
- /* Send framebuffer write message: */
- brw_fb_WRITE(p,
- retype(vec8(brw_null_reg()), BRW_REGISTER_TYPE_UW),
- base_reg,
- retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW),
- target,
- nr,
- 0,
- eot);
-}
-
-static void emit_fb_write(struct brw_wm_compile *c,
- const struct prog_instruction *inst)
-{
- struct brw_compile *p = &c->func;
- int nr = 2;
- int channel;
- GLuint target, eot;
- struct brw_reg src0;
-
- /* Reserve a space for AA - may not be needed:
- */
- if (c->key.aa_dest_stencil_reg)
- nr += 1;
-
- brw_push_insn_state(p);
- for (channel = 0; channel < 4; channel++) {
- src0 = get_src_reg(c, inst, 0, channel);
- /* mov (8) m2.0<1>:ud r28.0<8;8,1>:ud { Align1 } */
- /* mov (8) m6.0<1>:ud r29.0<8;8,1>:ud { Align1 SecHalf } */
- brw_MOV(p, brw_message_reg(nr + channel), src0);
- }
- /* skip over the regs populated above: */
- nr += 8;
- brw_pop_insn_state(p);
-
- if (c->key.source_depth_to_render_target) {
- if (c->key.computes_depth) {
- src0 = get_src_reg(c, inst, 2, 2);
- brw_MOV(p, brw_message_reg(nr), src0);
- }
- else {
- src0 = get_src_reg(c, inst, 1, 1);
- brw_MOV(p, brw_message_reg(nr), src0);
- }
-
- nr += 2;
- }
-
- if (c->key.dest_depth_reg) {
- const GLuint comp = c->key.dest_depth_reg / 2;
- const GLuint off = c->key.dest_depth_reg % 2;
-
- if (off != 0) {
- /* XXX this code needs review/testing */
- struct brw_reg arg1_0 = get_src_reg(c, inst, 1, comp);
- struct brw_reg arg1_1 = get_src_reg(c, inst, 1, comp+1);
-
- brw_push_insn_state(p);
- brw_set_compression_control(p, BRW_COMPRESSION_NONE);
-
- brw_MOV(p, brw_message_reg(nr), offset(arg1_0, 1));
- /* 2nd half? */
- brw_MOV(p, brw_message_reg(nr+1), arg1_1);
- brw_pop_insn_state(p);
- }
- else
- {
- struct brw_reg src = get_src_reg(c, inst, 1, 1);
- brw_MOV(p, brw_message_reg(nr), src);
- }
- nr += 2;
- }
-
- target = inst->Aux >> 1;
- eot = inst->Aux & 1;
- fire_fb_write(c, 0, nr, target, eot);
-}
-
-static void emit_pixel_w( struct brw_wm_compile *c,
- const struct prog_instruction *inst)