Create LLVMDrawers class as the external interface to the drawers

src/r_swrenderer.cpp

@@ -43,6 +43,7 @@
 #include "textures/textures.h"
 #include "r_data/voxels.h"
 #include "r_draw_rgba.h"
+#include "r_compiler/llvmdrawers.h"
 
 EXTERN_CVAR(Bool, r_shadercolormaps)
 
@@ -51,6 +52,16 @@ void R_SetupColormap(player_t *);
 void R_SetupFreelook();
 void R_InitRenderer();
 
+FSoftwareRenderer::FSoftwareRenderer()
+{
+	LLVMDrawers::Create();
+}
+
+FSoftwareRenderer::~FSoftwareRenderer()
+{
+	LLVMDrawers::Destroy();
+}
+
 //==========================================================================
 //
 // DCanvas :: Init