ECO RENDER

ECO RENDER rip from KD/alpet SOC repo:

https://xp-dev.com/sc/change/204486/122

Caps intro video (200 fps) and main menu (60 fps) FPS to avoid video
card coil noise/overheating.

Author: Bangalore1010

src/Common/Config.hpp

@@ -11,3 +11,4 @@
 //#define KEY_HOLD_CALLBACK // expose key hold callback to scripts (configure in bind_stalker)
 //#define FP_DEATH // first person death view
 #define DETAIL_RADIUS // detail draw radius (by K.D.)
+#define ECO_RENDER  //ECO_RENDER adds a small delay between rendering, reduce FPS in main menu or in videos

src/Layers/xrRender/HW.cpp

@@ -31,8 +31,8 @@ CHW HW;
 IDirect3DStateBlock9* dwDebugSB = nullptr;
 #endif
 
-CHW::CHW() : hD3D(nullptr), pD3D(nullptr), pDevice(nullptr), pBaseRT(nullptr), pBaseZB(nullptr), m_move_window(true) { ; }
-CHW::~CHW() { ; }
+CHW::CHW() : hD3D(nullptr), pD3D(nullptr), pDevice(nullptr), pBaseRT(nullptr), pBaseZB(nullptr), m_move_window(true), maxRefreshRate(200)/*ECO_RENDER*/ {}
+CHW::~CHW() {}
 void CHW::Reset(HWND hwnd)
 {
 #ifdef DEBUG
@@ -504,8 +504,10 @@ u32 CHW::selectRefresh(u32 dwWidth, u32 dwHeight, D3DFORMAT fmt)
             pD3D->EnumAdapterModes(DevAdapter, fmt, I, &Mode);
             if (Mode.Width == dwWidth && Mode.Height == dwHeight)
             {
-                if (Mode.RefreshRate > selected)
-                    selected = Mode.RefreshRate;
+                //if (Mode.RefreshRate > selected)
+                //    selected = Mode.RefreshRate;
+                if (Mode.RefreshRate <= maxRefreshRate && Mode.RefreshRate>selected)
+                    selected = Mode.RefreshRate;  //ECO_RENDER modif.
             }
         }
         return selected;

src/Layers/xrRender/HW.h

@@ -115,6 +115,8 @@ class CHW
     virtual void OnAppDeactivate();
 #endif //	USE_DX10
 
+    int maxRefreshRate; //ECO_RENDER add
+
 private:
     bool m_move_window;
 };

src/xrEngine/IGame_Persistent.cpp

@@ -25,6 +25,12 @@ bool g_dedicated_server = false;
 
 ENGINE_API IGame_Persistent* g_pGamePersistent = nullptr;
 
+//ECO_RENDER add
+bool IGame_Persistent::IsMainMenuActive()
+{
+    return g_pGamePersistent && g_pGamePersistent->m_pMainMenu && g_pGamePersistent->m_pMainMenu->IsActive();
+}
+
 IGame_Persistent::IGame_Persistent()
 {
     RDEVICE.seqAppStart.Add(this);

src/xrEngine/IGame_Persistent.h

@@ -88,6 +88,7 @@ class ENGINE_API IGame_Persistent :
     void Prefetch();
 #endif
     IMainMenu* m_pMainMenu;
+    static bool IsMainMenuActive();
 
     ParticleStatistics stats;
 

src/xrEngine/device.cpp

@@ -28,6 +28,8 @@
 #include "IGame_Persistent.h"
 #include "xrScriptEngine/ScriptExporter.hpp"
 
+#include "Common/Config.hpp"
+
 ENGINE_API CRenderDevice Device;
 ENGINE_API CLoadScreenRenderer load_screen_renderer;
 
@@ -231,7 +233,20 @@ void CRenderDevice::on_idle()
     mView_saved = mView;
     mProject_saved = mProject;
     syncProcessFrame.Set(); // allow secondary thread to do its job
+
+#ifdef ECO_RENDER // ECO_RENDER START
+    static u32 time_frame = 0;
+    u32 time_curr = timeGetTime();
+    u32 time_diff = time_curr - time_frame;
+    time_frame = time_curr;
+    u32 optimal = 10;
+    if (Device.Paused() || IGame_Persistent::IsMainMenuActive())
+        optimal = 32;
+    if (time_diff < optimal)
+        Sleep(optimal - time_diff);
+#else
     Sleep(0);
+#endif // ECO_RENDER END
 
 #ifndef DEDICATED_SERVER
     // all rendering is done here