Implemented camera aspect ratio hooks

UnleashedRecomp/game.cpp

@@ -1,5 +1,10 @@
+#include <cpu/guest_code.h>
+#include "api/SWA.h"
+#include "ui/window.h"
 #include "game.h"
 
+constexpr float m_baseAspectRatio = 16.0f / 9.0f;
+
 void Game::Exit()
 {
     s_isSignalExit = true;
@@ -10,3 +15,31 @@ bool GracefulLoopExitMidAsmHook()
     // TODO (Sajid): investigate XAM handle closing causing assertion failure here.
     return Game::s_isSignalExit;
 }
+
+bool CameraAspectRatioMidAsmHook(PPCRegister& r31)
+{
+    auto pCamera = (SWA::CCamera*)g_memory.Translate(r31.u32);
+    auto newAspectRatio = (float)Window::s_width / (float)Window::s_height;
+
+    // Dynamically adjust aspect ratio to window dimensions.
+    pCamera->m_HorzAspectRatio = newAspectRatio;
+
+    // Jump to 4:3 code for VERT+ adjustments if using a narrow aspect ratio.
+    return newAspectRatio < m_baseAspectRatio;
+}
+
+void CameraBoostAspectRatioMidAsmHook(PPCRegister& r31, PPCRegister& f0)
+{
+    auto pCamera = (SWA::CCamera*)g_memory.Translate(r31.u32);
+
+    if (Window::s_width < Window::s_height)
+    {
+        // Use horizontal FOV for narrow aspect ratios.
+        f0.f32 = pCamera->m_HorzFieldOfView;
+    }
+    else
+    {
+        // Use vertical FOV for normal aspect ratios.
+        f0.f32 = pCamera->m_VertFieldOfView;
+    }
+}