nv50: delayed write of fragprog result regs until end of program

diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index 936a8ef9b35bdd47e4467c45ff4f935ec23a41ad..1733cf97b76f065c9e40eed3208ee219e7363da0 100644 (file)
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -27,6 +27,8 @@
  *
  * FUCK! watch dst==src vectors, can overwrite components that are needed.
  *     ie. SUB R0, R0.yzxw, R0
+ *
+ * NV50_PROG* -> PIPE_SHADER*
  */
 struct nv50_reg {
        enum {
@@ -1198,11 +1200,13 @@ nv50_program_tx_prep(struct nv50_pc *pc)
 
                for (i = 0; i < pc->result_nr; i++) {
                        for (c = 0; c < 4; c++) {
-                               if (pc->p->type == NV50_PROG_FRAGMENT)
+                               if (pc->p->type == NV50_PROG_FRAGMENT) {
                                        pc->result[i*4+c].type = P_TEMP;
-                               else
+                                       pc->result[i*4+c].hw = -1;
+                               } else {
                                        pc->result[i*4+c].type = P_RESULT;
-                               pc->result[i*4+c].hw = rid++;
+                                       pc->result[i*4+c].hw = rid++;
+                               }
                                pc->result[i*4+c].index = i;
                        }
                }
@@ -1281,6 +1285,14 @@ nv50_program_tx(struct nv50_program *p)
                }
        }
 
+       if (p->type == NV50_PROG_FRAGMENT) {
+               struct nv50_reg out;
+
+               out.type = P_TEMP;
+               for (out.hw = 0; out.hw < pc->result_nr * 4; out.hw++)
+                       emit_mov(pc, &out, &pc->result[out.hw]);
+       }
+
        p->immd_nr = pc->immd_nr * 4;
        p->immd = pc->immd_buf;