refactor(platform): Encapsulate state in PlatformState struct

- Replaced all global static variables in the platform layer with a single PlatformState struct.
- Updated all platform function signatures to accept a pointer to this struct, making the implementation stateless and more modular.
- Refactored main.cc, tests, and tools to instantiate and pass the PlatformState struct.
- This improves code organization and removes scattered global state.

1 files changed, 7 insertions, 6 deletions

diff --git a/src/main.cc b/src/main.cc
index f7136ef..2ece549 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -129,6 +129,7 @@ float* generate_tone(float* buffer, float freq) {
 }
 
 int main(int argc, char** argv) {
+  PlatformState platform_state = {};
   bool fullscreen_enabled = false;
   float seek_time = 0.0f;
   int* width_ptr = nullptr;
@@ -156,8 +157,8 @@ int main(int argc, char** argv) {
   fullscreen_enabled = true;
 #endif /* STRIP_ALL */
 
-  platform_init_window(fullscreen_enabled, width_ptr, height_ptr);
-  gpu_init(platform_get_window(), platform_get_width(), platform_get_height());
+  platform_init(&platform_state, fullscreen_enabled, width_ptr, height_ptr);
+  gpu_init(&platform_state);
   audio_init();
 
   // Register drum assets
@@ -234,14 +235,14 @@ int main(int argc, char** argv) {
   // Start real audio
   audio_start();
 
-  while (!platform_should_close()) {
-    platform_poll();
+  while (!platform_should_close(&platform_state)) {
+    platform_poll(&platform_state);
 
     double current_time = platform_get_time() + seek_time; // Offset logic time
 
     update_game_logic(current_time);
 
-    float aspect_ratio = platform_get_aspect_ratio();
+    float aspect_ratio = platform_get_aspect_ratio(&platform_state);
 
     // Adjusted multiplier for visuals (preventing constant 1.0 saturation)
     float raw_peak = synth_get_output_peak();
@@ -254,6 +255,6 @@ int main(int argc, char** argv) {
 
   audio_shutdown();
   gpu_shutdown();
-  platform_shutdown();
+  platform_shutdown(&platform_state);
   return 0;
 }