renderer_opengl « video_core « src - anonymous/yuzu - yuzu is the world's most popular, open-source, Nintendo Switch emulator — started by the creators of Citra. It is written in C++ with portability in mind,

Mode	Name	Size
-rw-r--r--	gl_rasterizer.cpp	33855	log stats plain blame
-rw-r--r--	gl_rasterizer.h	6653	log stats plain blame
-rw-r--r--	gl_rasterizer_cache.cpp	28823	log stats plain blame
-rw-r--r--	gl_rasterizer_cache.h	15888	log stats plain blame
-rw-r--r--	gl_resource_manager.h	8037	log stats plain blame
-rw-r--r--	gl_shader_decompiler.cpp	75087	log stats plain blame
-rw-r--r--	gl_shader_decompiler.h	787	log stats plain blame
-rw-r--r--	gl_shader_gen.cpp	2740	log stats plain blame
-rw-r--r--	gl_shader_gen.h	5585	log stats plain blame
-rw-r--r--	gl_shader_manager.cpp	1934	log stats plain blame
-rw-r--r--	gl_shader_manager.h	6040	log stats plain blame
-rw-r--r--	gl_shader_util.cpp	1500	log stats plain blame
-rw-r--r--	gl_shader_util.h	2831	log stats plain blame
-rw-r--r--	gl_state.cpp	10803	log stats plain blame
-rw-r--r--	gl_state.h	4711	log stats plain blame
-rw-r--r--	gl_stream_buffer.cpp	4997	log stats plain blame
-rw-r--r--	gl_stream_buffer.h	940	log stats plain blame
-rw-r--r--	maxwell_to_gl.h	9072	log stats plain blame
-rw-r--r--	renderer_opengl.cpp	16476	log stats plain blame
-rw-r--r--	renderer_opengl.h	2896	log stats plain blame