From 332771104f8afe14cccf6c36dc0aadd991f0e2b2 Mon Sep 17 00:00:00 2001
From: duarteapcoelho <duarte.ap.coelho@gmail.com>
Date: Thu, 8 Dec 2022 16:20:43 +0000
Subject: [PATCH] gint: Add libprof for more accurate FPS

---
 README.md          |  1 +
 gint/Makefile      |  2 +-
 src/main.cpp       |  2 ++
 src/time-gint.cpp  | 15 +++++++++++++--
 src/time-prizm.cpp |  2 ++
 src/time-sdl.cpp   |  2 ++
 src/time.h         |  1 +
 7 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 06fec6e..07dafb5 100644
--- a/README.md
+++ b/README.md
@@ -47,6 +47,7 @@ This version supports multiplayer, but it's slower than the gint version.
 This version doesn't support multiplayer, but it runs faster and doesn't have a border.
 #### Linux
 - Install gint ([https://gitea.planet-casio.com/Lephenixnoir/gint](https://gitea.planet-casio.com/Lephenixnoir/gint))
+- Install libprof ([https://gitea.planet-casio.com/Lephenixnoir/libprof](https://gitea.planet-casio.com/Lephenixnoir/libprof))
 - Run `make gint`
 
 ## Technical information
diff --git a/gint/Makefile b/gint/Makefile
index e957186..f481dcd 100644
--- a/gint/Makefile
+++ b/gint/Makefile
@@ -1,7 +1,7 @@
 CC = sh-elf-g++
 CFLAGS += -Wall -Wextra -Ofast -funroll-loops -DGINT
 CFLAGS += -DFXCG50 -DTARGET_FXCG50 -m4-nofpu -mb -ffreestanding -nostdlib -fstrict-volatile-bitfields
-LDFLAGS = -m4-nofpu -mb -nostdlib -Wl,--no-warn-rwx-segments -T fxcg50.ld -lgint-cg -lc -lgcc -lgint-cg
+LDFLAGS = -m4-nofpu -mb -nostdlib -Wl,--no-warn-rwx-segments -T fxcg50.ld -lgint-cg -lc -lgcc -lgint-cg -lprof-cg
 
 INCLUDES =
 
diff --git a/src/main.cpp b/src/main.cpp
index 53df0ec..e5cddcb 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -62,6 +62,8 @@ int main(){
 	Track::coneMesh = {22, cone_triangles};
 	Track::simpleConeMesh = {2, simpleConeTriangles};
 
+	Time::init();
+
 	Display::init();
 	Display::clear(newColor(70, 180, 220));
 	Display::show();
diff --git a/src/time-gint.cpp b/src/time-gint.cpp
index 339c59d..d7e1550 100644
--- a/src/time-gint.cpp
+++ b/src/time-gint.cpp
@@ -1,12 +1,23 @@
 #ifdef GINT
 #include "time.h"
 #include <gint/rtc.h>
+#include <libprof.h>
+
 namespace Time {
-	void init(){}
+	prof_t prof;
+	void init(){
+		prof_init();
+		prof = prof_make();
+	}
 	void update(){
+		prof_leave(prof);
+
 		const float lastTime = time;
 		time = rtc_ticks();
-		delta = time - lastTime;
+		delta = prof_time(prof) / 1000.0f / (1000.0f / 128.0f);
+
+		prof = prof_make();
+		prof_enter(prof);
 	}
 };
 #endif
diff --git a/src/time-prizm.cpp b/src/time-prizm.cpp
index 07891cc..644f25d 100644
--- a/src/time-prizm.cpp
+++ b/src/time-prizm.cpp
@@ -3,6 +3,8 @@
 #include <fxcg/rtc.h>
 
 namespace Time {
+	void init(){
+	}
 	void update(){
 		const float lastTime = time;
 		time = RTC_GetTicks();
diff --git a/src/time-sdl.cpp b/src/time-sdl.cpp
index 75fe880..3d9ff5e 100644
--- a/src/time-sdl.cpp
+++ b/src/time-sdl.cpp
@@ -3,6 +3,8 @@
 #include <SDL2/SDL.h>
 
 namespace Time {
+	void init(){
+	}
 	void update(){
 		const float lastTime = time;
 		time = ((float)(SDL_GetTicks()) / (1000.0/128.0));
diff --git a/src/time.h b/src/time.h
index 8b1a76f..ea853e1 100644
--- a/src/time.h
+++ b/src/time.h
@@ -3,5 +3,6 @@
 namespace Time {
 	extern float time;
 	extern float delta;
+	void init();
 	void update();
 };