Merge commit 'origin/7.8'

[mesa.git] / src / mesa / drivers / dri / i965 / brw_wm_emit.c

diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c
index 05e464d4b61726693af09a639dba25487234af26..f79de5dbffc8c62c58aeb93220efbdd2c588e2ce 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_wm_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c
@@ -61,6 +61,44 @@ static INLINE struct brw_reg sechalf( struct brw_reg reg )
    return reg;
 }
 
+/* Return the SrcReg index of the channels that can be immediate float operands
+ * instead of usage of PROGRAM_CONSTANT values through push/pull.
+ */
+GLboolean
+brw_wm_arg_can_be_immediate(enum prog_opcode opcode, int arg)
+{
+   int opcode_array[] = {
+      [OPCODE_ADD] = 2,
+      [OPCODE_CMP] = 3,
+      [OPCODE_DP3] = 2,
+      [OPCODE_DP4] = 2,
+      [OPCODE_DPH] = 2,
+      [OPCODE_MAX] = 2,
+      [OPCODE_MIN] = 2,
+      [OPCODE_MOV] = 1,
+      [OPCODE_MUL] = 2,
+      [OPCODE_SEQ] = 2,
+      [OPCODE_SGE] = 2,
+      [OPCODE_SGT] = 2,
+      [OPCODE_SLE] = 2,
+      [OPCODE_SLT] = 2,
+      [OPCODE_SNE] = 2,
+      [OPCODE_XPD] = 2,
+   };
+
+   /* These opcodes get broken down in a way that allow two
+    * args to be immediates.
+    */
+   if (opcode == OPCODE_MAD || opcode == OPCODE_LRP) {
+      if (arg == 1 || arg == 2)
+        return GL_TRUE;
+   }
+
+   if (opcode > ARRAY_SIZE(opcode_array))
+      return GL_FALSE;
+
+   return arg == opcode_array[opcode] - 1;
+}
 
 /**
  * Computes the screen-space x,y position of the pixels.
@@ -545,8 +583,11 @@ void emit_sop(struct brw_compile *p,
    for (i = 0; i < 4; i++) {
       if (mask & (1<<i)) {     
         brw_push_insn_state(p);
-        brw_CMP(p, brw_null_reg(), cond, arg1[i], arg0[i]);
-        brw_SEL(p, dst[i], brw_null_reg(), brw_imm_f(1.0));
+        brw_CMP(p, brw_null_reg(), cond, arg0[i], arg1[i]);
+        brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+        brw_MOV(p, dst[i], brw_imm_f(0));
+        brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
+        brw_MOV(p, dst[i], brw_imm_f(1.0));
         brw_pop_insn_state(p);
       }
    }
@@ -617,14 +658,10 @@ void emit_cmp(struct brw_compile *p,
 
    for (i = 0; i < 4; i++) {
       if (mask & (1<<i)) {     
-        brw_set_saturate(p, (mask & SATURATE) ? 1 : 0);
-        brw_MOV(p, dst[i], arg2[i]);
-        brw_set_saturate(p, 0);
-
         brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_L, arg0[i], brw_imm_f(0));
 
         brw_set_saturate(p, (mask & SATURATE) ? 1 : 0);
-        brw_MOV(p, dst[i], arg1[i]);
+        brw_SEL(p, dst[i], arg1[i], arg2[i]);
         brw_set_saturate(p, 0);
         brw_set_predicate_control_flag_value(p, 0xff);
       }