Changed: Added VideoMemory variable in cfg to force video memory to use (useful if Ryzom can't detect the correct amount of video memory or when using several clients at once)

--HG--
branch : develop

code/ryzom/client/src/client_cfg.cpp

@@ -419,6 +419,7 @@ CClientConfig::CClientConfig()
 	HDTextureInstalled	= false;
 	Fog					= true;						// Fog is on by default
 	WaitVBL				= false;
+	VideoMemory			= 0;
 
 	FXAA				= true;
 
@@ -1051,6 +1052,8 @@ void CClientConfig::setValues()
 
 	// WaitVBL
 	READ_BOOL_FV(WaitVBL)
+	// VideoMemory
+	READ_INT_FV(VideoMemory);
 
 	READ_INT_DEV(TimerMode)
 

code/ryzom/client/src/client_cfg.h

@@ -255,6 +255,8 @@ struct CClientConfig
 	bool			Fog;
 	/// Enable/Disable VSync
 	bool			WaitVBL;
+	/// Force or auto-detect video memory (in MiB)
+	sint			VideoMemory;
 
 	/// Timer mode. 0 : QueryPerformanceCounter, 1 : timeGetTime.
 	uint			TimerMode;

code/ryzom/client/src/init_main_loop.cpp

@@ -890,21 +890,31 @@ void initMainLoop()
 
 				// only detect amount of video memory if using HD textures
 				if (ClientCfg.HDEntityTexture)
+				{
+					if (ClientCfg.VideoMemory <= 0)
 					{
 						// determine video memory using 3D driver
 						videoMemory = Driver->getTotalVideoMemory();
 
 						// if unable to determine, use plaform methods
-					if (videoMemory < 0) videoMemory = CSystemUtils::getTotalVideoMemory();
+						if (videoMemory <= 0) videoMemory = CSystemUtils::getTotalVideoMemory();
 
 						// in the worst case, use default value of 128 MiB
-					if (videoMemory < 0) videoMemory = 128 * 1024;
+						if (videoMemory <= 0) videoMemory = 128 * 1024;
 
 						videoMemory /= 1024; // size in MiB
 
 						nlinfo("Video memory detected: %d MiB", videoMemory);
 					}
 					else
+					{
+						// force video memory (at least 32 MiB)
+						videoMemory = ClientCfg.VideoMemory < 32 ? 32:ClientCfg.VideoMemory;
+
+						nlinfo("Video memory forced: %d MiB", videoMemory);
+					}
+				}
+				else
 				{
 					// 32 MiB of VRAM if DivideTextureSizeBy2 else 64 MiB
 					videoMemory = ClientCfg.DivideTextureSizeBy2 ? 32:64;