llvmpipe: added simple perf/statistics counting facility

Currently counting number of tris, how many tiles of each size are
fully covered, partially covered or empty, etc.

Set LP_DEBUG=counters to enable.  Results are printed upon context
destruction.

1 files changed, 86 insertions, 0 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_perf.c b/src/gallium/drivers/llvmpipe/lp_perf.c
new file mode 100644
index 00000000000..2628d51069b
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_perf.c
@@ -0,0 +1,86 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "util/u_debug.h"
+#include "lp_debug.h"
+#include "lp_perf.h"
+
+
+
+struct lp_counters lp_count;
+
+
+void
+lp_reset_counters(void)
+{
+   memset(&lp_count, 0, sizeof(lp_count));
+}
+
+
+void
+lp_print_counters(void)
+{
+   if (LP_DEBUG & DEBUG_COUNTERS) {
+      unsigned total_64, total_16, total_4;
+      float p1, p2, p3;
+
+      debug_printf("llvmpipe: nr_triangles:               %9u\n", lp_count.nr_tris);
+      debug_printf("llvmpipe: nr_culled_triangles:        %9u\n", lp_count.nr_culled_tris);
+
+      total_64 = (lp_count.nr_empty_64 + 
+                  lp_count.nr_fully_covered_64 +
+                  lp_count.nr_partially_covered_64);
+
+      p1 = 100.0 * (float) lp_count.nr_empty_64 / (float) total_64;
+      p2 = 100.0 * (float) lp_count.nr_fully_covered_64 / (float) total_64;
+      p3 = 100.0 * (float) lp_count.nr_partially_covered_64 / (float) total_64;
+
+      debug_printf("llvmpipe: nr_empty_64x64:             %9u (%2.0f%% of %u)\n", lp_count.nr_empty_64, p1, total_64);
+      debug_printf("llvmpipe: nr_fully_covered_64x64:     %9u (%2.0f%% of %u)\n", lp_count.nr_fully_covered_64, p2, total_64);
+      debug_printf("llvmpipe: nr_partially_covered_64x64: %9u (%2.0f%% of %u)\n", lp_count.nr_partially_covered_64, p3, total_64);
+
+      total_16 = (lp_count.nr_empty_16 + 
+                  lp_count.nr_fully_covered_16 +
+                  lp_count.nr_partially_covered_16);
+
+      p1 = 100.0 * (float) lp_count.nr_empty_16 / (float) total_16;
+      p2 = 100.0 * (float) lp_count.nr_fully_covered_16 / (float) total_16;
+      p3 = 100.0 * (float) lp_count.nr_partially_covered_16 / (float) total_16;
+
+      debug_printf("llvmpipe: nr_empty_16x16:             %9u (%2.0f%% of %u)\n", lp_count.nr_empty_16, p1, total_16);
+      debug_printf("llvmpipe: nr_fully_covered_16x16:     %9u (%2.0f%% of %u)\n", lp_count.nr_fully_covered_16, p2, total_16);
+      debug_printf("llvmpipe: nr_partially_covered_16x16: %9u (%2.0f%% of %u)\n", lp_count.nr_partially_covered_16, p3, total_16);
+
+      total_4 = (lp_count.nr_empty_4 + lp_count.nr_non_empty_4);
+
+      p1 = 100.0 * (float) lp_count.nr_empty_4 / (float) total_4;
+      p2 = 100.0 * (float) lp_count.nr_non_empty_4 / (float) total_4;
+
+      debug_printf("llvmpipe: nr_empty_4x4:               %9u (%2.0f%% of %u)\n", lp_count.nr_empty_4, p1, total_4);
+      debug_printf("llvmpipe: nr_non_empty_4x4:           %9u (%2.0f%% of %u)\n", lp_count.nr_non_empty_4, p2, total_4);
+   }
+}