ref_soft: Fix transparency in API

r_context.c

@@ -592,7 +592,7 @@ ref_interface_t gReffuncs =
 	TriBegin,
 	TriEnd,
 	_TriColor4f,
-	TriColor4ub,
+	_TriColor4ub,
 	TriTexCoord2f,
 	TriVertex3fv,
 	TriVertex3f,

r_local.h

@@ -678,6 +678,7 @@ void TriVertex3fv( const float *v );
 void TriVertex3f( float x, float y, float z );
 void _TriColor4f( float r, float g, float b, float a );
 void TriColor4ub( byte r, byte g, byte b, byte a );
+void _TriColor4ub( byte r, byte g, byte b, byte a );
 int TriWorldToScreen( const float *world, float *screen );
 int TriSpriteTexture( model_t *pSpriteModel, int frame );
 void TriFog( float flFogColor[3], float flStart, float flEnd, int bOn );

r_triapi.c

@@ -200,6 +200,20 @@ void TriColor4ub( byte r, byte g, byte b, byte a )
 	_TriColor4f( ds.triRGBA[0], ds.triRGBA[1], ds.triRGBA[2], 1.0f );
 }
 
+/*
+=============
+TriColor4ub
+
+=============
+*/
+void _TriColor4ub( byte r, byte g, byte b, byte a )
+{
+	_TriColor4f(	r * (1.0f / 255.0f),
+					g * (1.0f / 255.0f),
+					b * (1.0f / 255.0f),
+					a * (1.0f / 255.0f));
+}
+
 /*
 =================
 TriColor4f