i965: scale factor changes should trigger recompile

Found by inspection.

Signed-off-by: Lionel Landwerlin <[email protected]>
Fixes: 3da858a6b990c5 ("intel/compiler: add scale_factors to sampler_prog_key_data")
Reviewed-by: Tapani Pälli <[email protected]>

2 files changed, 16 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index 66fe5b3a8a0..51c3196e66a 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -1460,6 +1460,16 @@ key_debug(struct brw_context *brw, const char *name, int a, int b)
    return false;
 }
 
+static inline bool
+key_debug_float(struct brw_context *brw, const char *name, float a, float b)
+{
+   if (a != b) {
+      perf_debug("  %s %f->%f\n", name, a, b);
+      return true;
+   }
+   return false;
+}
+
 void brwInitFragProgFuncs( struct dd_function_table *functions );
 
 void brw_get_scratch_bo(struct brw_context *brw,
diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c
index 9f88d625d63..3cd8f18e794 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.c
+++ b/src/mesa/drivers/dri/i965/brw_wm.c
@@ -271,12 +271,17 @@ brw_debug_recompile_sampler_key(struct brw_context *brw,
                       old_key->ayuv_image_mask,
                       key->ayuv_image_mask);
 
-
    for (unsigned int i = 0; i < MAX_SAMPLERS; i++) {
       found |= key_debug(brw, "textureGather workarounds",
                          old_key->gen6_gather_wa[i], key->gen6_gather_wa[i]);
    }
 
+   for (unsigned int i = 0; i < MAX_SAMPLERS; i++) {
+      found |= key_debug_float(brw, "scale factor",
+                               old_key->scale_factors[i],
+                               key->scale_factors[i]);
+   }
+
    return found;
 }