1 files changed, 126 insertions, 0 deletions
diff --git a/source/blender/depsgraph/intern/debug/deg_debug_stats_gnuplot.cc b/source/blender/depsgraph/intern/debug/deg_debug_stats_gnuplot.cc
new file mode 100644
index 00000000000..ecef4ff55a7
--- /dev/null
+++ b/source/blender/depsgraph/intern/debug/deg_debug_stats_gnuplot.cc
@@ -0,0 +1,126 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2017 Blender Foundation.
+ * All rights reserved.
+ *
+ * Original Author: Sergey Sharybin
+ * Contributor(s): None Yet
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/depsgraph/intern/debug/deg_debug_stats_gnuplot.cc
+ *  \ingroup depsgraph
+ */
+
+#include "DEG_depsgraph_debug.h"
+
+#include <stdarg.h>
+
+#include "BLI_compiler_attrs.h"
+
+#include "intern/depsgraph.h"
+#include "intern/nodes/deg_node_id.h"
+
+#include "util/deg_util_foreach.h"
+
+extern "C" {
+#include "DNA_ID.h"
+} /* extern "C" */
+
+#define NL "\r\n"
+
+namespace DEG {
+namespace {
+
+struct DebugContext {
+	FILE *file;
+	const Depsgraph *graph;
+	const char *label;
+	const char *output_filename;
+};
+
+/* TODO(sergey): De-duplicate with graphviz relation debugger. */
+static void deg_debug_fprintf(const DebugContext &ctx,
+                              const char *fmt,
+                              ...) ATTR_PRINTF_FORMAT(2, 3);
+static void deg_debug_fprintf(const DebugContext &ctx, const char *fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	vfprintf(ctx.file, fmt, args);
+	va_end(args);
+}
+
+void write_stats_data(const DebugContext& ctx)
+{
+	deg_debug_fprintf(ctx, "$data << EOD" NL);
+	// TODO(sergey): Sort nodes by time.
+	foreach (const IDDepsNode *id_node, ctx.graph->id_nodes) {
+		// TODO(sergey): Figure out a nice way to define which exact time
+		// we want to show.
+		const double time = id_node->stats.current_time;
+		if (time == 0.0) {
+			continue;
+		}
+		deg_debug_fprintf(ctx, "\"%s\",%f" NL,
+		                  id_node->id->name + 2,
+		                  time);
+	}
+	deg_debug_fprintf(ctx, "EOD" NL);
+}
+
+void deg_debug_stats_gnuplot(const DebugContext& ctx)
+{
+	// Data itself.
+	write_stats_data(ctx);
+	// Optional label.
+	if (ctx.label && ctx.label[0]) {
+		deg_debug_fprintf(ctx, "set title \"%s\"" NL, ctx.label);
+	}
+	// Rest of the commands.
+	// TODO(sergey): Need to decide on the resolution somehow.
+	deg_debug_fprintf(ctx, "set terminal pngcairo size 1920,1080" NL);
+	deg_debug_fprintf(ctx, "set output \"%s\"" NL, ctx.output_filename);
+	deg_debug_fprintf(ctx, "set grid" NL);
+	deg_debug_fprintf(ctx, "set datafile separator ','" NL);
+	deg_debug_fprintf(ctx, "set style fill solid" NL);
+	deg_debug_fprintf(ctx, "plot \"$data\" using " \
+	                       "($2*0.5):0:($2*0.5):(0.2):yticlabels(1) "
+	                       "with boxxyerrorbars t '' lt rgb \"#406090\"" NL);
+
+}
+
+}  // namespace
+}  // namespace DEG
+
+void DEG_debug_stats_gnuplot(const Depsgraph *depsgraph,
+                             FILE *f,
+                             const char *label,
+                             const char *output_filename)
+{
+	if (depsgraph == NULL) {
+		return;
+	}
+	DEG::DebugContext ctx;
+	ctx.file = f;
+	ctx.graph = (DEG::Depsgraph *)depsgraph;
+	ctx.label = label;
+	ctx.output_filename = output_filename;
+	DEG::deg_debug_stats_gnuplot(ctx);
+}