1 files changed, 29 insertions, 23 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_wm_fp.c b/src/mesa/drivers/dri/i965/brw_wm_fp.c
index 3870bf10fc..15a238cda6 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_fp.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_fp.c
@@ -89,6 +89,8 @@ static struct prog_src_register src_reg(GLuint file, GLuint idx)
    reg.Negate = NEGATE_NONE;
    reg.Abs = 0;
    reg.HasIndex2 = 0;
+   reg.RelAddr2 = 0;
+   reg.Index2 = 0;
    return reg;
 }
 
@@ -336,6 +338,12 @@ static struct prog_src_register get_delta_xy( struct brw_wm_compile *c )
 
 static struct prog_src_register get_pixel_w( struct brw_wm_compile *c )
 {
+   /* This is only called for producing 1/w in pre-gen6 interp.  for
+    * gen6, the interp opcodes don't use this argument.
+    */
+   if (c->func.brw->intel.gen >= 6)
+      return src_undef();
+
    if (src_is_undef(c->pixel_w)) {
       struct prog_dst_register pixel_w = get_temp(c);
       struct prog_src_register deltas = get_delta_xy(c);
@@ -363,7 +371,13 @@ static void emit_interp( struct brw_wm_compile *c,
 {
    struct prog_dst_register dst = dst_reg(PROGRAM_INPUT, idx);
    struct prog_src_register interp = src_reg(PROGRAM_PAYLOAD, idx);
-   struct prog_src_register deltas = get_delta_xy(c);
+   struct prog_src_register deltas;
+
+   if (c->func.brw->intel.gen < 6) {
+      deltas = get_delta_xy(c);
+   } else {
+      deltas = src_undef();
+   }
 
    /* Need to use PINTERP on attributes which have been
     * multiplied by 1/W in the SF program, and LINTERP on those
@@ -520,12 +534,6 @@ static struct prog_src_register search_or_add_param5(struct brw_wm_compile *c,
    tokens[2] = s2;
    tokens[3] = s3;
    tokens[4] = s4;
-   
-   for (idx = 0; idx < paramList->NumParameters; idx++) {
-      if (paramList->Parameters[idx].Type == PROGRAM_STATE_VAR &&
-	  memcmp(paramList->Parameters[idx].StateIndexes, tokens, sizeof(tokens)) == 0)
-	 return src_reg(PROGRAM_STATE_VAR, idx);
-   }
 
    idx = _mesa_add_state_reference( paramList, tokens );
 
@@ -543,28 +551,18 @@ static struct prog_src_register search_or_add_const4f( struct brw_wm_compile *c,
    GLfloat values[4];
    GLuint idx;
    GLuint swizzle;
+   struct prog_src_register reg;
 
    values[0] = s0;
    values[1] = s1;
    values[2] = s2;
    values[3] = s3;
 
-   /* Have to search, otherwise multiple compilations will each grow
-    * the parameter list.
-    */
-   for (idx = 0; idx < paramList->NumParameters; idx++) {
-      if (paramList->Parameters[idx].Type == PROGRAM_CONSTANT &&
-	  memcmp(paramList->ParameterValues[idx], values, sizeof(values)) == 0)
-
-	 /* XXX: this mimics the mesa bug which puts all constants and
-	  * parameters into the "PROGRAM_STATE_VAR" category:
-	  */
-	 return src_reg(PROGRAM_STATE_VAR, idx);
-   }
-   
    idx = _mesa_add_unnamed_constant( paramList, values, 4, &swizzle );
-   assert(swizzle == SWIZZLE_NOOP); /* Need to handle swizzle in reg setup */
-   return src_reg(PROGRAM_STATE_VAR, idx);
+   reg = src_reg(PROGRAM_STATE_VAR, idx);
+   reg.Swizzle = swizzle;
+
+   return reg;
 }
 
 
@@ -1056,6 +1054,7 @@ static void print_insns( const struct prog_instruction *insn,
  */
 void brw_wm_pass_fp( struct brw_wm_compile *c )
 {
+   struct intel_context *intel = &c->func.brw->intel;
    struct brw_fragment_program *fp = c->fp;
    GLuint insn;
 
@@ -1067,7 +1066,14 @@ void brw_wm_pass_fp( struct brw_wm_compile *c )
    }
 
    c->pixel_xy = src_undef();
-   c->delta_xy = src_undef();
+   if (intel->gen >= 6) {
+      /* The interpolation deltas come in as the perspective pixel
+       * location barycentric params.
+       */
+      c->delta_xy = src_reg(PROGRAM_PAYLOAD, PAYLOAD_DEPTH);
+   } else {
+      c->delta_xy = src_undef();
+   }
    c->pixel_w = src_undef();
    c->nr_fp_insns = 0;
    c->fp->tex_units_used = 0x0;