Disable glCheck by default, move to validate:OpenGlChecks config

core/nullDC.cpp

@@ -253,6 +253,8 @@ void LoadSettings()
 	settings.debug.SerialConsole = cfgLoadInt("config", "Debug.SerialConsoleEnabled", 0) != 0;
 
 	settings.reios.ElfFile = cfgLoadStr("reios", "ElfFile","");
+
+	settings.validate.OpenGlChecks = cfgLoadInt("validate", "OpenGlChecks", 0) != 0;
 #endif
 
 	settings.bios.UseReios = cfgLoadInt("config", "bios.UseReios", 0);

core/rend/gles/gles.h

@@ -26,7 +26,7 @@
 #endif
 
 
-#define glCheck() verify(glGetError()==GL_NO_ERROR)
+#define glCheck() do { if (settings.validate.OpenGlChecks) { verify(glGetError()==GL_NO_ERROR); } } while(0)
 #define eglCheck() false
 
 #define VERTEX_POS_ARRAY 0

core/types.h

@@ -684,6 +684,10 @@ struct settings_t
 	struct {
 		bool SerialConsole;
 	} debug;
+
+	struct {
+		bool OpenGlChecks;
+	} validate;
 };
 
 extern settings_t settings;