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	34911	log stats plain blame
-rw-r--r--	gl_rasterizer.h	6917	log stats plain blame
-rw-r--r--	gl_rasterizer_cache.cpp	39735	log stats plain blame
-rw-r--r--	gl_rasterizer_cache.h	27992	log stats plain blame
-rw-r--r--	gl_resource_manager.h	8037	log stats plain blame
-rw-r--r--	gl_shader_decompiler.cpp	94426	log stats plain blame
-rw-r--r--	gl_shader_decompiler.h	762	log stats plain blame
-rw-r--r--	gl_shader_gen.cpp	2810	log stats plain blame
-rw-r--r--	gl_shader_gen.h	6715	log stats plain blame
-rw-r--r--	gl_shader_manager.cpp	2182	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	10223	log stats plain blame
-rw-r--r--	gl_state.h	4634	log stats plain blame
-rw-r--r--	gl_stream_buffer.cpp	3281	log stats plain blame
-rw-r--r--	gl_stream_buffer.h	1355	log stats plain blame
-rw-r--r--	maxwell_to_gl.h	11691	log stats plain blame
-rw-r--r--	renderer_opengl.cpp	17471	log stats plain blame
-rw-r--r--	renderer_opengl.h	3058	log stats plain blame