expose first pass at rendering statistics via build option 'RENDERING_STATS' - refs #780
This commit is contained in:
Dane Springmeyer
parent
2052e072c1
commit
8e94bf9188
3 changed files with 115 additions and 3 deletions
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@ -347,6 +347,9 @@ opts.AddVariables(
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('PKG_CONFIG_PATH', 'Use this path to point pkg-config to .pc files instead of the PKG_CONFIG_PATH environment setting',''),
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# Variables affecting rendering back-ends
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BoolVariable('RENDERING_STATS', 'Output rendering statistics during style processing', 'False'),
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BoolVariable('INTERNAL_LIBAGG', 'Use provided libagg', 'True'),
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BoolVariable('SVG_RENDERER', 'build support for native svg renderer', 'False'),
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15
src/build.py
15
src/build.py
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@ -104,7 +104,6 @@ source = Split(
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box2d.cpp
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expression_string.cpp
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filter_factory.cpp
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feature_style_processor.cpp
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feature_type_style.cpp
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font_engine_freetype.cpp
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font_set.cpp
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@ -155,6 +154,20 @@ source = Split(
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"""
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)
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processor_cpp = 'feature_style_processor.cpp'
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if env['RENDERING_STATS']:
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env3 = lib_env.Clone()
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env3.Append(CXXFLAGS='-DRENDERING_STATS')
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if env['LINKING'] == 'static':
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source.insert(0,env3.StaticObject(processor_cpp))
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else:
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source.insert(0,env3.SharedObject(processor_cpp))
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else:
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source.insert(0,processor_cpp);
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# add the datasource_cache.cpp with custom LIBTOOL flag if needed
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if env['LIBTOOL_SUPPORTS_ADVISE']:
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env3 = lib_env.Clone()
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@ -38,6 +38,7 @@
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// boost
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#include <boost/foreach.hpp>
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//stl
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#include <vector>
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@ -45,6 +46,12 @@
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#include <mapnik/cairo_renderer.hpp>
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#endif
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#if defined(RENDERING_STATS)
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#include <mapnik/timer.hpp>
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#include <iomanip>
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#include <sstream>
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#endif
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namespace mapnik
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{
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@ -85,6 +92,11 @@ template <typename Processor>
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void feature_style_processor<Processor>::apply()
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{
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#if defined(RENDERING_STATS)
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std::clog << "\n//-- starting rendering timer...\n";
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mapnik::progress_timer t(std::clog, "total map rendering");
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#endif
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Processor & p = static_cast<Processor&>(*this);
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p.start_map_processing(m_);
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@ -114,6 +126,12 @@ void feature_style_processor<Processor>::apply()
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}
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p.end_map_processing(m_);
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#if defined(RENDERING_STATS)
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t.stop();
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std::clog << "//-- rendering timer stopped...\n\n";
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#endif
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}
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template <typename Processor>
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@ -169,12 +187,12 @@ void feature_style_processor<Processor>::apply_to_layer(layer const& lay, Proces
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double scale_denom,
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std::set<std::string>& names)
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{
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std::vector<std::string> const& style_names = lay.styles();
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unsigned int num_styles = style_names.size();
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if (!num_styles)
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if (!num_styles) {
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return;
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}
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mapnik::datasource_ptr ds = lay.datasource();
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if (!ds)
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@ -185,6 +203,10 @@ void feature_style_processor<Processor>::apply_to_layer(layer const& lay, Proces
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p.start_layer_processing(lay);
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#if defined(RENDERING_STATS)
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progress_timer layer_timer(std::clog, "rendering total for layer: '" + lay.name() + "'");
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#endif
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projection proj1(lay.srs());
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proj_transform prj_trans(proj0,proj1);
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@ -198,6 +220,11 @@ void feature_style_processor<Processor>::apply_to_layer(layer const& lay, Proces
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return;
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}
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#if defined(RENDERING_STATS)
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if (!prj_trans.equal())
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std::clog << "notice: reprojecting layer: '" << lay.name() << "' (may be slow!)\n";
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#endif
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box2d<double> map_ext = m_.get_buffered_extent();
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// clip buffered extent by maximum extent, if supplied
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@ -231,6 +258,9 @@ void feature_style_processor<Processor>::apply_to_layer(layer const& lay, Proces
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else
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{
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// if no intersection then nothing to do for layer
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#if defined(RENDERING_STATS)
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layer_timer.discard();
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#endif
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return;
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}
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@ -285,13 +315,35 @@ void feature_style_processor<Processor>::apply_to_layer(layer const& lay, Proces
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bool cache_features = lay.cache_features() && num_styles>1?true:false;
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bool first = true;
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#if defined(RENDERING_STATS)
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int style_index = 0;
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if (!active_styles.size() > 0) {
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layer_timer.discard();
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}
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#endif
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BOOST_FOREACH (feature_type_style * style, active_styles)
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{
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#if defined(RENDERING_STATS)
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std::string s_name = style_names[style_index];
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std::ostringstream s1;
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s1 << "rendering style #" << style_index+1
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<< " for layer: '" << lay.name() << "' and style '" << s_name << "'";
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mapnik::progress_timer style_timer(std::clog, s1.str());
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if (!num_styles>1)
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style_timer.discard();
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style_index++;
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#endif
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std::vector<rule*> if_rules;
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std::vector<rule*> else_rules;
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std::vector<rule> const& rules=style->get_rules();
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#if defined(RENDERING_STATS)
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int feature_count = 0;
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int feature_processed_count = 0;
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#endif
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BOOST_FOREACH(rule const& r, rules)
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{
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if (r.active(scale_denom))
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@ -340,6 +392,12 @@ void feature_style_processor<Processor>::apply_to_layer(layer const& lay, Proces
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feature_ptr feature;
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while ((feature = fs->next()))
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{
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#if defined(RENDERING_STATS)
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feature_count++;
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bool feat_processed = false;
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#endif
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bool do_else=true;
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if (cache_features)
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@ -353,6 +411,10 @@ void feature_style_processor<Processor>::apply_to_layer(layer const& lay, Proces
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value_type result = boost::apply_visitor(evaluate<Feature,value_type>(*feature),*expr);
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if (result.to_bool())
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{
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#if defined(RENDERING_STATS)
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feat_processed = true;
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#endif
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do_else=false;
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rule::symbolizers const& symbols = r->get_symbolizers();
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@ -379,6 +441,10 @@ void feature_style_processor<Processor>::apply_to_layer(layer const& lay, Proces
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{
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BOOST_FOREACH( rule * r, else_rules )
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{
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#if defined(RENDERING_STATS)
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feat_processed = true;
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#endif
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rule::symbolizers const& symbols = r->get_symbolizers();
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// if the underlying renderer is not able to process the complete set of symbolizers,
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// process one by one.
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@ -393,8 +459,38 @@ void feature_style_processor<Processor>::apply_to_layer(layer const& lay, Proces
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}
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}
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}
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#if defined(RENDERING_STATS)
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if (feat_processed)
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feature_processed_count++;
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#endif
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}
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#if defined(RENDERING_STATS)
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style_timer.stop();
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layer_timer.stop();
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// done with style
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std::ostringstream s;
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if (feature_count > 0) {
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double perc_processed = ((double)feature_processed_count/(double)feature_count)*100.0;
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s << "percent rendered: " << perc_processed << "% - " << feature_processed_count
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<< " rendered for " << feature_count << " queried for ";
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s << std::setw(15 - (int)s.tellp()) << " layer '" << lay.name() << "' and style '" << s_name << "'\n";
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} else {
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s << "" << std::setw(15) << "- no features returned from query for layer '" << lay.name() << "' and style '" << s_name << "'\n";
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}
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std::clog << s.str();
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#endif
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}
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#if defined(RENDERING_STATS)
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else {
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style_timer.discard();
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layer_timer.discard();
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}
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#endif
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cache_features = false;
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}
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