- /* inst->Sampler is not used by backend,
- use it for fb write target and eot */
-
- if (brw->state.nr_draw_regions > 1) {
- for (i = 0 ; i < brw->state.nr_draw_regions; i++) {
- outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DATA0 + i);
- last_inst = inst = emit_op(c,
- WM_FB_WRITE, dst_mask(dst_undef(),0), 0, 0, 0,
- outcolor, payload_r0_depth, outdepth);
- inst->Sampler = (i<<1);
- if (c->fp_fragcolor_emitted) {
- outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLR);
- last_inst = inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0),
- 0, 0, 0, outcolor, payload_r0_depth, outdepth);
- inst->Sampler = (i<<1);
- }
- }
- last_inst->Sampler |= 1; //eot
- }else {
- inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0),
- 0, 0, 0, outcolor, payload_r0_depth, outdepth);
- inst->Sampler = 1|(0<<1);
+ /* The inst->Aux field is used for FB write target and the EOT marker */
+
+ if (brw->state.nr_color_regions > 1) {
+ for (i = 0 ; i < brw->state.nr_color_regions; i++) {
+ outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DATA0 + i);
+ last_inst = inst = emit_op(c,
+ WM_FB_WRITE, dst_mask(dst_undef(),0), 0,
+ outcolor, payload_r0_depth, outdepth);
+ inst->Aux = (i<<1);
+ if (c->fp_fragcolor_emitted) {
+ outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLOR);
+ last_inst = inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0),
+ 0, outcolor, payload_r0_depth, outdepth);
+ inst->Aux = (i<<1);
+ }
+ }
+ last_inst->Aux |= 1; //eot
+ }
+ else {
+ /* if gl_FragData[0] is written, use it, else use gl_FragColor */
+ if (c->fp->program.Base.OutputsWritten & (1 << FRAG_RESULT_DATA0))
+ outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DATA0);
+ else
+ outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLOR);
+
+ inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0),
+ 0, outcolor, payload_r0_depth, outdepth);
+ inst->Aux = 1|(0<<1);