i965/gen6: Add state dumping for the VS constants.

This is quite a bit of spam, but I think it's useful to have in a full
INTEL_DEBUG=batch dump.  And a lot of this spam on glxgears is just
because we're awful at handling our constants :/

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

src/mesa/drivers/dri/i965/brw_context.h

@@ -211,6 +211,7 @@ enum state_struct_type {
    AUB_TRACE_NO_TYPE =			0x100,
    AUB_TRACE_BINDING_TABLE =		0x101,
    AUB_TRACE_SURFACE_STATE =		0x102,
+   AUB_TRACE_VS_CONSTANTS =		0x103,
 };
 
 /** Subclass of Mesa vertex program */

src/mesa/drivers/dri/i965/brw_state_dump.c

@@ -367,6 +367,23 @@ dump_scissor(struct brw_context *brw, uint32_t offset)
 	     scissor->xmax, scissor->ymax);
 }
 
+static void
+dump_vs_constants(struct brw_context *brw, uint32_t offset, uint32_t size)
+{
+   const char *name = "VS_CONST";
+   struct intel_context *intel = &brw->intel;
+   uint32_t *as_uint = intel->batch.bo->virtual + offset;
+   float *as_float = intel->batch.bo->virtual + offset;
+   int i;
+
+   for (i = 0; i < size / 4; i += 4) {
+      batch_out(brw, name, offset, i, "%3d: (% f % f % f % f) (0x%08x 0x%08x 0x%08x 0x%08x)\n",
+		i / 4,
+		as_float[i], as_float[i + 1], as_float[i + 2], as_float[i + 3],
+		as_uint[i], as_uint[i + 1], as_uint[i + 2], as_uint[i + 3]);
+   }
+}
+
 static void dump_binding_table(struct brw_context *brw, uint32_t offset,
 			       uint32_t size)
 {
@@ -493,6 +510,9 @@ dump_state_batch(struct brw_context *brw)
       case AUB_TRACE_SCISSOR_STATE:
 	 dump_scissor(brw, offset);
 	 break;
+      case AUB_TRACE_VS_CONSTANTS:
+	 dump_vs_constants(brw, offset, size);
+	 break;
       default:
 	 break;
       }

src/mesa/drivers/dri/i965/gen6_vs_state.c

@@ -60,7 +60,7 @@ gen6_prepare_vs_push_constants(struct brw_context *brw)
       float *param;
       int i;
 
-      param = brw_state_batch(brw, AUB_TRACE_NO_TYPE,
+      param = brw_state_batch(brw, AUB_TRACE_VS_CONSTANTS,
 			      (MAX_CLIP_PLANES + nr_params) *
 			      4 * sizeof(float),
 			      32, &brw->vs.push_const_offset);