renderer: port r_fastsky cvar to new format

Author: illwieckz

src/engine/renderer/tr_backend.cpp

@@ -33,6 +33,8 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 backEndData_t  *backEndData[ SMP_FRAMES ];
 backEndState_t backEnd;
 
+Cvar::Cvar<bool> r_fastsky( "r_fastsky", "Clear sky instead of drawing it", Cvar::NONE, false );
+
 static Cvar::Cvar<bool> r_clear( "r_clear", "Clear screen before painting over it on every frame", Cvar::NONE, false );
 
 void GL_Bind( image_t *image )
@@ -5625,7 +5627,7 @@ const RenderCommand *ClearBufferCommand::ExecuteSelf( ) const
 	GL_State( GLS_DEFAULT );
 
 	// Clear relevant buffers, r_fastsky always require clearing.
-	if ( r_clear.Get() || r_fastsky->integer ) {
+	if ( r_clear.Get() || r_fastsky.Get() ) {
 		clearBits |= GL_COLOR_BUFFER_BIT;
 	}
 

src/engine/renderer/tr_init.cpp

@@ -53,8 +53,6 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
 	cvar_t      *r_measureOverdraw;
 
-	cvar_t      *r_fastsky;
-
 	cvar_t      *r_lodBias;
 	cvar_t      *r_lodScale;
 
@@ -1117,7 +1115,6 @@ ScreenshotCmd screenshotPNGRegistration("screenshotPNG", ssFormat_t::SSF_PNG, "p
 		r_znear = Cvar_Get( "r_znear", "3", CVAR_CHEAT );
 		r_zfar = Cvar_Get( "r_zfar", "0", CVAR_CHEAT );
 		r_checkGLErrors = Cvar_Get( "r_checkGLErrors", "-1", 0 );
-		r_fastsky = Cvar_Get( "r_fastsky", "0", CVAR_ARCHIVE );
 		r_finish = Cvar_Get( "r_finish", "0", CVAR_CHEAT );
 		r_textureMode = Cvar_Get( "r_textureMode", "GL_LINEAR_MIPMAP_LINEAR", CVAR_ARCHIVE );
 		r_gamma = Cvar_Get( "r_gamma", "1.0", CVAR_ARCHIVE );

src/engine/renderer/tr_local.h

@@ -2864,7 +2864,7 @@ enum class dynamicLightRenderer_t { LEGACY, TILED };
 	extern cvar_t *r_ambientScale;
 	extern cvar_t *r_lightScale;
 
-	extern cvar_t *r_fastsky; // controls whether sky should be cleared or drawn
+	extern Cvar::Cvar<bool> r_fastsky; // Controls whether sky should be cleared or drawn.
 	extern Cvar::Range<Cvar::Cvar<int>> r_dynamicLightRenderer;
 	extern Cvar::Cvar<bool> r_dynamicLight;
 	extern Cvar::Cvar<bool> r_staticLight;

src/engine/renderer/tr_sky.cpp

@@ -49,7 +49,7 @@ void Tess_StageIteratorSky()
 
 	tr.drawingSky = false;
 
-	if ( r_fastsky->integer )
+	if ( r_fastsky.Get() )
 	{
 		return;
 	}