From a922403acc298b06eac652397108dbecf185bb7e Mon Sep 17 00:00:00 2001
From: jaby <jaby@william.zone>
Date: Tue, 1 Oct 2024 21:34:51 +0200
Subject: [PATCH] Integrate time measurement

---
 .../application/src/Overlay/GPUTest/gpu_test.cpp      | 11 +++++++++++
 include/PSX/System/IOPorts/timer_io.hpp               |  1 -
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/examples/PoolBox/application/src/Overlay/GPUTest/gpu_test.cpp b/examples/PoolBox/application/src/Overlay/GPUTest/gpu_test.cpp
index 122d0509..e4c85c8e 100644
--- a/examples/PoolBox/application/src/Overlay/GPUTest/gpu_test.cpp
+++ b/examples/PoolBox/application/src/Overlay/GPUTest/gpu_test.cpp
@@ -3,6 +3,7 @@
 #include <PSX/GPU/gpu.hpp>
 #include <PSX/GPU/make_gpu_primitives.hpp>
 #include <PSX/Periphery/periphery.hpp>
+#include <PSX/Timer/high_res_timer.hpp>
 
 namespace GPUTest {
     using namespace JabyEngine;
@@ -120,7 +121,10 @@ namespace GPUTest {
     void main() {
         rect9.concat(rect10);
         Shared::back_menu.reset();
+        HighResTime::enable();
 
+        auto start_time  = HighResTime::get_time_stamp();
+        auto time_passed = 0;
         while(true) {
             // Update Phase
             Periphery::query_controller();
@@ -128,7 +132,13 @@ namespace GPUTest {
                 break;
             }
 
+            auto cursor = FontWriter::update(Make::PositionI16((GPU::Display::Width - 160)/2, GPU::Display::Height - 32));
+            FontWriter::bios_font_writer.write(cursor, "Time: %ims", GPU::Color24::Blue(), time_passed);
+
             GPU::swap_buffers_vsync(1);
+            const auto end_time = HighResTime::get_time_stamp();
+            time_passed = start_time.milliseconds_to(end_time);
+            start_time = end_time;
 
             GPU::render(triangle1);
             GPU::render(triangle2);
@@ -159,5 +169,6 @@ namespace GPUTest {
             GPU::render(rect9);
             Shared::back_menu.render();
         }
+        HighResTime::disable();
     }
 }
diff --git a/include/PSX/System/IOPorts/timer_io.hpp b/include/PSX/System/IOPorts/timer_io.hpp
index 00c30e89..5cda8a83 100644
--- a/include/PSX/System/IOPorts/timer_io.hpp
+++ b/include/PSX/System/IOPorts/timer_io.hpp
@@ -82,7 +82,6 @@ namespace JabyEngine {
             return (0x1F801100 + (ID*0x10));
         }
 
-        // TODO: Improve this to actually use it for measurement - if possible
         static auto& Counter0 = __declare_io_value(struct Counter0, counter_base_adr(0));
         static auto& Counter1 = __declare_io_value(struct Counter1, counter_base_adr(1));
         static auto& Counter2 = __declare_io_value(struct Counter2, counter_base_adr(2));