perf profiler, simplify 2d render, string struct, many small things

1 files changed, 55 insertions, 0 deletions

diff --git a/src/util/profiler.cpp b/src/util/profiler.cpp
new file mode 100644
index 0000000..86c1810
--- /dev/null
+++ b/src/util/profiler.cpp
@@ -0,0 +1,55 @@
+#if defined(DEBUG) || defined(PROFILER)
+#include "profiler.h"
+#include "../render/gl_2d_font.h"
+#include "../game/vars.h"
+#include "string.h"
+
+CVAR* prof_overlay = var_new( "prof_overlay", 0 );
+PROFILER_GLOBAL gprof;
+
+void __profiler_intern_draw_tree( PROFILER_LIST_ENTRY* e, GL_FONT* font, I32* x, I32* y ) {
+  GL_DATA* gl = gl_instance();
+  static GL_SHADER_PROGRAM** gl2d = gl->programs.where( fn( GL_SHADER_PROGRAM** p ) {
+    return STR( (*p)->name ) == "2d" ;
+  } );
+
+  if( !gl2d )
+    return;
+
+  STR line;
+  if( e->parent ) {
+    U64 parent_dur = e->parent->duration;
+    U64 percent = (F64)parent_dur / e->duration * 100.f;
+    line = STR( "%s -> duration: %.2fms [%.0f%%]",
+      e->name,
+      (F32)e->duration / TICK_RESOLUTION * 1000.f,
+      percent
+    );
+  } else {
+    line = STR( "%s -> duration: %.2fms",
+      e->name,
+      (F32)e->duration / TICK_RESOLUTION * 1000.f
+    );
+  }
+
+  gl_font_draw( font, *gl2d, VEC2{ (F32)*x + 1, (F32)*y + 1 }, line, CLR::BLACK() );
+  gl_font_draw( font, *gl2d, VEC2{ (F32)*x, (F32)*y }, line, CLR::WHITE() );
+
+  *y += font->size + 1;
+  *x += 20;
+  for( auto& it : e->children )
+    __profiler_intern_draw_tree( &it, font, x, y );
+  *x -= 20;
+}
+
+void __profiler_intern_draw_overlay( struct GL_FONT* f ) {
+  if( !var_geti( prof_overlay ) )
+    return;
+
+  I32 x = 50, y = 50;
+  for( auto& it : gprof.frames )
+    __profiler_intern_draw_tree( &it, f, &x, &y );
+}
+
+
+#endif