perf(debug): memory of the process and of its parts in the debug panel: resident, peak and private memory, card memory (GL_NVX_gpu_memory_info), the copies kept by the textures, geometry banks, models, scenery shapes and lines, sleepers and sound buffers

audio/audio.cpp

@@ -299,6 +299,21 @@ buffer_manager::buffer( audio::buffer_handle const Buffer ) const {
 }
 
 // creates AL buffers for files decoded in the background so far, or for all of them if requested
+// the AL buffers made and the bytes of their sound data, for the debug panel
+memory_count
+buffer_manager::memory() const {
+
+    memory_count result;
+    for( auto const &buffer : m_buffers ) {
+        if( buffer.id == null_resource ) { continue; }
+        ALint size { 0 };
+        ::alGetBufferi( buffer.id, AL_SIZE, &size );
+        ++result.count;
+        result.bytes += static_cast<std::uint64_t>( std::max( size, 0 ) );
+    }
+    return result;
+}
+
 void
 buffer_manager::update( bool const Wait ) {
 

audio/audio.h

@@ -9,6 +9,8 @@ http://mozilla.org/MPL/2.0/.
 
 #pragma once
 
+#include "utilities/memorystats.h"
+
 #if defined(__APPLE__) && !__has_include(<AL/al.h>)
 #include <OpenAL/al.h>
 #include <OpenAL/alc.h>
@@ -60,6 +62,9 @@ public:
     // creates AL buffers for files decoded in the background so far, or for all of them if requested
     void
         update( bool const Wait = false );
+    // the AL buffers made and the bytes of their sound data, which the AL keeps in the process, for the debug panel
+    memory_count
+        memory() const;
 
 private:
 // types

audio/audiorenderer.h

@@ -108,6 +108,8 @@ public:
     audio::openal_buffer const &buffer( audio::buffer_handle const Buffer ) const;
     // makes buffers of all sound files still decoded in the background (sound.asyncload), waiting for them
     void complete_buffers();
+    // the sound buffers and the bytes of their data, for the debug panel
+    memory_count buffers_memory() const { return m_buffers.memory(); }
 
     bool init();
 
@@ -164,4 +166,4 @@ private:
 extern openal_renderer renderer;
 extern bool event_volume_change;
 
-} // namespace audio
+} // namespace audio