i965/fs: Add vector float immediate infrastructure.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 0ffb07f..68305ef 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -581,6 +581,18 @@ fs_reg::fs_reg(uint32_t u)
    this->width = 1;
 }
 
+/** Vector float immediate value constructor. */
+fs_reg::fs_reg(uint8_t vf0, uint8_t vf1, uint8_t vf2, uint8_t vf3)
+{
+   init();
+   this->file = IMM;
+   this->type = BRW_REGISTER_TYPE_VF;
+   this->fixed_hw_reg.dw1.ud = (vf0 <<  0) |
+                               (vf1 <<  8) |
+                               (vf2 << 16) |
+                               (vf3 << 24);
+}
+
 /** Fixed brw_reg. */
 fs_reg::fs_reg(struct brw_reg fixed_hw_reg)
 {
@@ -3189,6 +3201,13 @@ fs_visitor::dump_instruction(backend_instruction *be_inst, FILE *file)
          case BRW_REGISTER_TYPE_UD:
             fprintf(file, "%uu", inst->src[i].fixed_hw_reg.dw1.ud);
             break;
+         case BRW_REGISTER_TYPE_VF:
+            fprintf(stderr, "[%-gF, %-gF, %-gF, %-gF]",
+                    brw_vf_to_float((inst->src[i].fixed_hw_reg.dw1.ud >>  0) & 0xff),
+                    brw_vf_to_float((inst->src[i].fixed_hw_reg.dw1.ud >>  8) & 0xff),
+                    brw_vf_to_float((inst->src[i].fixed_hw_reg.dw1.ud >> 16) & 0xff),
+                    brw_vf_to_float((inst->src[i].fixed_hw_reg.dw1.ud >> 24) & 0xff));
+            break;
          default:
             fprintf(file, "???");
             break;

diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index ee61207..4421eed 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -76,6 +76,8 @@ public:
    explicit fs_reg(float f);
    explicit fs_reg(int32_t i);
    explicit fs_reg(uint32_t u);
+   explicit fs_reg(uint8_t vf[4]);
+   explicit fs_reg(uint8_t vf0, uint8_t vf1, uint8_t vf2, uint8_t vf3);
    fs_reg(struct brw_reg fixed_hw_reg);
    fs_reg(enum register_file file, int reg);
    fs_reg(enum register_file file, int reg, enum brw_reg_type type);

diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
index 06b0f34..2a35fa9 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
@@ -1255,6 +1255,9 @@ brw_reg_from_fs_reg(fs_reg *reg)
       case BRW_REGISTER_TYPE_UD:
         brw_reg = brw_imm_ud(reg->fixed_hw_reg.dw1.ud);
         break;
+      case BRW_REGISTER_TYPE_VF:
+         brw_reg = brw_imm_vf(reg->fixed_hw_reg.dw1.ud);
+         break;
       default:
         unreachable("not reached");
       }