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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2017 Blender Foundation. All rights reserved. */
/** \file
* \ingroup depsgraph
*/
#include "DEG_depsgraph_debug.h"
#include <algorithm>
#include <cstdarg>
#include "BLI_compiler_attrs.h"
#include "BLI_math_base.h"
#include "intern/depsgraph.h"
#include "intern/node/deg_node_id.h"
#include "DNA_ID.h"
#define NL "\r\n"
namespace deg = blender::deg;
namespace blender::deg {
namespace {
struct DebugContext {
FILE *file;
const Depsgraph *graph;
const char *label;
const char *output_filename;
};
struct StatsEntry {
const IDNode *id_node;
double time;
};
/* TODO(sergey): De-duplicate with graphviz relation debugger. */
void deg_debug_fprintf(const DebugContext &ctx, const char *fmt, ...) ATTR_PRINTF_FORMAT(2, 3);
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);
}
inline double get_node_time(const DebugContext & /*ctx*/, const Node *node)
{
/* TODO(sergey): Figure out a nice way to define which exact time
* we want to show. */
return node->stats.current_time;
}
bool stat_entry_comparator(const StatsEntry &a, const StatsEntry &b)
{
return a.time > b.time;
}
string gnuplotify_id_code(const string &name)
{
return string("") + name[0] + name[1];
}
string gnuplotify_name(const string &name)
{
string result;
const int length = name.length();
for (int i = 0; i < length; i++) {
const char ch = name[i];
if (ch == '_') {
result += R"(\\\)";
}
result += ch;
}
return result;
}
void write_stats_data(const DebugContext &ctx)
{
/* Fill in array of all stats which are to be displayed. */
Vector<StatsEntry> stats;
stats.reserve(ctx.graph->id_nodes.size());
for (const IDNode *id_node : ctx.graph->id_nodes) {
const double time = get_node_time(ctx, id_node);
if (time == 0.0) {
continue;
}
StatsEntry entry;
entry.id_node = id_node;
entry.time = time;
stats.append(entry);
}
/* Sort the data. */
std::sort(stats.begin(), stats.end(), stat_entry_comparator);
/* We limit number of entries, otherwise things become unreadable. */
stats.resize(min_ii(stats.size(), 32));
std::reverse(stats.begin(), stats.end());
/* Print data to the file stream. */
deg_debug_fprintf(ctx, "$data << EOD" NL);
for (const StatsEntry &entry : stats) {
deg_debug_fprintf(ctx,
"\"[%s] %s\",%f" NL,
gnuplotify_id_code(entry.id_node->id_orig->name).c_str(),
gnuplotify_name(entry.id_node->id_orig->name + 2).c_str(),
entry.time);
}
deg_debug_fprintf(ctx, "EOD" NL);
}
void deg_debug_stats_gnuplot(const DebugContext &ctx)
{
/* Data itself. */
write_stats_data(ctx);
/* Optional label. */
if (ctx.label && ctx.label[0]) {
deg_debug_fprintf(ctx, "set title \"%s\"" NL, ctx.label);
}
/* Rest of the commands.
* TODO(sergey): Need to decide on the resolution somehow. */
deg_debug_fprintf(ctx, "set terminal pngcairo size 1920,1080" NL);
deg_debug_fprintf(ctx, "set output \"%s\"" NL, ctx.output_filename);
deg_debug_fprintf(ctx, "set grid" NL);
deg_debug_fprintf(ctx, "set datafile separator ','" NL);
deg_debug_fprintf(ctx, "set style fill solid" NL);
deg_debug_fprintf(ctx,
"plot \"$data\" using "
"($2*0.5):0:($2*0.5):(0.2):yticlabels(1) "
"with boxxyerrorbars t '' lt rgb \"#406090\"" NL);
}
} // namespace
} // namespace blender::deg
void DEG_debug_stats_gnuplot(const Depsgraph *depsgraph,
FILE *fp,
const char *label,
const char *output_filename)
{
if (depsgraph == nullptr) {
return;
}
deg::DebugContext ctx;
ctx.file = fp;
ctx.graph = (deg::Depsgraph *)depsgraph;
ctx.label = label;
ctx.output_filename = output_filename;
deg::deg_debug_stats_gnuplot(ctx);
}
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