-VG_STATIC void vg_profile_begin( struct vg_profile *profile )
-{
- profile->start = SDL_GetPerformanceCounter();
-}
-
-VG_STATIC void vg_profile_increment( struct vg_profile *profile )
-{
- profile->buffer_current ++;
-
- if( profile->buffer_count < VG_PROFILE_SAMPLE_COUNT )
- profile->buffer_count ++;
-
- if( profile->buffer_current >= VG_PROFILE_SAMPLE_COUNT )
- profile->buffer_current = 0;
-
- profile->samples[ profile->buffer_current ] = 0.0f;
-}
-
-VG_STATIC void vg_profile_end( struct vg_profile *profile )
-{
- u64 time_end;
-
- time_end = SDL_GetPerformanceCounter();
- u64 delta = profile->start - time_end;
-
- if( profile->mode == k_profile_mode_frame )
- {
- profile->samples[ profile->buffer_current ] = delta;
- vg_profile_increment( profile );
- }
- else
- {
- profile->samples[ profile->buffer_current ] += delta;
- }
-}
-
-VG_STATIC void vg_profile_drawn( struct vg_profile **profiles, u32 count,
- float budget, ui_rect panel, u32 colour_offset )
-{
- if( !vg_profiler )
- return;
-
- if( panel[2] == 0 )
- panel[2] = 256;
-
- if( panel[3] == 0 )
- panel[3] = VG_PROFILE_SAMPLE_COUNT * 2;
-
- float sh = panel[3] / VG_PROFILE_SAMPLE_COUNT,
- sw = panel[2];
-
- ui_fill_rect( panel, 0xa0000000 );
-
- assert( count <= 8 );
- float avgs[8];
- int ptrs[8];
-
- for( int i=0; i<count; i++ )
- {
- ptrs[i] = profiles[i]->buffer_current;
- avgs[i] = 0.0f;
- }
-
- u32 colours[] = { 0xff0000ff, 0xff00ff00, 0xff00ffff, 0xffff0000,
- 0xffff00ff, 0xffffff00 };
-
- float rate_mul = 1.0f / (float)SDL_GetPerformanceFrequency();
-
- for( int i=0; i<VG_PROFILE_SAMPLE_COUNT-1; i++ )
- {
- float total = 0.0f;
-
- for( int j=0; j<count; j++ )
- {
- ptrs[j] --;
-
- if( ptrs[j] < 0 )
- ptrs[j] = VG_PROFILE_SAMPLE_COUNT-1;
-
- float sample = (float)profiles[j]->samples[ptrs[j]] * rate_mul,
- px = (total / (budget)) * sw,
- wx = (sample / (budget)) * sw;
-
- ui_rect block = { panel[0] + px, panel[1] + (float)i*sh,
- wx, sh };
-
- u32 colour = colours[ (j+colour_offset) % vg_list_size(colours) ];
- ui_fill_rect( block, colour );
-
- total += sample;
- avgs[j] += sample;
- }
- }
-
- char infbuf[64];
-
- for( int i=0; i<count; i++ )
- {
- snprintf( infbuf, 64, "%.4fms %s",
- avgs[i] * (1.0f/(VG_PROFILE_SAMPLE_COUNT-1)),
- profiles[i]->name );
-
- ui_text( (ui_rect){ panel[0] + panel[2] + 4,
- panel[1] + i * 14, 0, 0 },
- infbuf,
- 1,
- k_text_align_left );
- }
-}
-
-VG_STATIC void vg_profiler_init(void)
-{
- vg_convar_push( (struct vg_convar){
- .name = "vg_profiler",
- .data = &vg_profiler,
- .data_type = k_convar_dtype_i32,
- .opt_i32 = { .min=0, .max=1, .clamp=1 },
- .persistent = 1
- });
-}
-
-#endif /* VG_PROFILER_H */