From f2750b30a837e63acab514d3121fb2ca734d13df Mon Sep 17 00:00:00 2001
From: VegOwOtenks <vegowotenks@jossco.de>
Date: Sun, 2 Mar 2025 09:54:54 +0100
Subject: [PATCH] SDL-FPSCounter as module

---
 .gitmodules               |  3 +++
 CMakeLists.txt            |  6 +++--
 SDL_FPSCounter.c          | 51 ---------------------------------------
 SDL_FPSCounter.h          | 19 ---------------
 main.c                    |  2 +-
 submodules/SDL_FPSCounter |  1 +
 6 files changed, 9 insertions(+), 73 deletions(-)
 delete mode 100644 SDL_FPSCounter.c
 delete mode 100644 SDL_FPSCounter.h
 create mode 160000 submodules/SDL_FPSCounter

diff --git a/.gitmodules b/.gitmodules
index c605a7b..c4aa74f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "submodules/utilitiec"]
 	path = submodules/utilitiec
 	url = https://git.jossco.de/VegOwOtenks/utilitiec.git
+[submodule "submodules/SDL_FPSCounter"]
+	path = submodules/SDL_FPSCounter
+	url = https://git.jossco.de/VegOwOtenks/SDL_FPSCounter.git
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 52ce37d..0b36b9d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,8 +14,10 @@ add_subdirectory(submodules/SDL_ttf EXCLUDE_FROM_ALL)
 
 add_subdirectory(submodules/utilitiec EXCLUDE_FROM_ALL)
 
+add_subdirectory(submodules/SDL_FPSCounter EXCLUDE_FROM_ALL)
+
 # Create your game executable target as usual
-add_executable(partikle WIN32 main.c SDL_FPSCounter.c)
+add_executable(partikle WIN32 main.c)
 
 # Link to the actual SDL3 library.
-target_link_libraries(partikle PRIVATE SDL3_ttf::SDL3_ttf SDL3::SDL3 QuadTree allocator-interface rand m)
+target_link_libraries(partikle PRIVATE SDL3_ttf::SDL3_ttf SDL3::SDL3 QuadTree allocator-interface rand m SDL_FPSCounter)
diff --git a/SDL_FPSCounter.c b/SDL_FPSCounter.c
deleted file mode 100644
index 7ae04a2..0000000
--- a/SDL_FPSCounter.c
+++ /dev/null
@@ -1,51 +0,0 @@
-#include "SDL_FPSCounter.h"
-
-#include <SDL3/SDL.h>
-#include <stdlib.h>
-
-int SDL_CreateFPSCounter(SDL_FPSCounter* counter, uint32_t window_length)
-{
-	counter->window = malloc(sizeof(uint64_t) * window_length);
-	if (counter->window == NULL) {
-		SDL_OutOfMemory();
-		return -1;
-	}
-	memset(counter->window, 0, window_length * sizeof(uint64_t));
-	counter->frequency = SDL_GetPerformanceFrequency();
-	counter->window_index = 0;
-	counter->window_length = window_length;
-
-	return EXIT_SUCCESS;
-}
-
-void SDL_DestroyFPSCounter(SDL_FPSCounter* counter)
-{
-	free(counter->window);
-	memset(counter, 0, sizeof *counter);
-}
-
-int SDL_FPSCounterTick(SDL_FPSCounter* counter)
-{
-	counter->window[counter->window_index] = SDL_GetPerformanceCounter();
-	counter->window_index++;
-	counter->window_index = counter->window_index % counter->window_length;
-
-	return EXIT_SUCCESS;
-}
-
-uint64_t SDL_FPSCounterFPS(SDL_FPSCounter* counter)
-{
-	uint64_t last = counter->window[counter->window_index];
-	uint64_t current;
-	uint64_t acc_difference = 0;
-
-	for (uint32_t i = (counter->window_index + 1) % counter->window_length; i != counter->window_index; i = (i + 1) % counter->window_length) {
-		current = counter->window[i];
-		acc_difference += current - last;
-
-		last = current;
-	}
-
-	uint64_t average_difference = acc_difference / (counter->window_length - 1);
-	return counter->frequency / average_difference;
-}
diff --git a/SDL_FPSCounter.h b/SDL_FPSCounter.h
deleted file mode 100644
index ca18f95..0000000
--- a/SDL_FPSCounter.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef SDL_FPSCOUNTER_H
-#define SDL_FPSCOUNTER_H
-
-#include <stdint.h>
-
-typedef struct SDL_FPSCounter_s {
-	uint64_t  frequency;
-	uint32_t  window_index;
-	uint32_t  window_length;
-	uint64_t* window;
-} SDL_FPSCounter;
-
-int  SDL_CreateFPSCounter(SDL_FPSCounter* counter, uint32_t window_length);
-void SDL_DestroyFPSCounter(SDL_FPSCounter* counter);
-
-int SDL_FPSCounterTick(SDL_FPSCounter* counter);
-uint64_t SDL_FPSCounterFPS(SDL_FPSCounter* counter);
-
-#endif
diff --git a/main.c b/main.c
index 9df4683..897c08b 100644
--- a/main.c
+++ b/main.c
@@ -21,7 +21,7 @@
 #include <SDL3/SDL_main.h>
 #include <SDL3_ttf/SDL_ttf.h>
 
-#include "SDL_FPSCounter.h"
+#include "submodules/SDL_FPSCounter/src/SDL_FPSCounter.h"
 
 #include "submodules/utilitiec/src/QuadTree/QuadTree.h"
 #include "submodules/utilitiec/src/rand/xoshiro256.h"
diff --git a/submodules/SDL_FPSCounter b/submodules/SDL_FPSCounter
new file mode 160000
index 0000000..5ff4e4e
--- /dev/null
+++ b/submodules/SDL_FPSCounter
@@ -0,0 +1 @@
+Subproject commit 5ff4e4ebb5e7905a94d35f6679c31162d053a7e4