Selectable renderer implementation (#1247)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

src/mbgl/programs/programs.cpp

@@ -1,5 +1,4 @@
 #include <mbgl/programs/programs.hpp>
-
 #include <mbgl/programs/background_program.hpp>
 #include <mbgl/programs/circle_program.hpp>
 #include <mbgl/programs/heatmap_program.hpp>
@@ -9,7 +8,6 @@
 #include <mbgl/programs/line_program.hpp>
 #include <mbgl/programs/raster_program.hpp>
 #include <mbgl/programs/symbol_program.hpp>
-
 #include <mbgl/util/logging.hpp>
 #include <exception>
 
@@ -42,6 +40,7 @@ void registerTypes(gfx::ShaderRegistry& registry, const ProgramParameters& progr
 }
 
 void Programs::registerWith(gfx::ShaderRegistry& registry) {
+#if MLN_LEGACY_RENDERER
     /// The following types will be registered
     registerTypes<BackgroundProgram,
                   BackgroundPatternProgram,
@@ -69,6 +68,10 @@ void Programs::registerWith(gfx::ShaderRegistry& registry) {
                   CollisionCircleProgram,
                   DebugProgram,
                   ClippingMaskProgram>(registry, programParameters);
+#else
+    /// The following types will be registered
+    registerTypes<DebugProgram, ClippingMaskProgram>(registry, programParameters);
+#endif
 }
 
 } // namespace mbgl