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420cc13248
Add code required to use OpenGL assembly programs based on NV_gpu_program5. Decompilation for ARB programs is intended to be added in a follow up commit. This does **not** include ARB decompilation and it's not in an usable state. The intention behind assembly programs is to reduce shader stutter significantly on drivers supporting NV_gpu_program5 (and other required extensions). Currently only Nvidia's proprietary driver supports these extensions. Add a UI option hidden for now to avoid people enabling this option accidentally. This code path has some limitations that OpenGL compatibility doesn't have: - NV_shader_storage_buffer_object is limited to 16 entries for a single OpenGL context state (I don't know if this is an intended limitation, an specification issue or I am missing something). Currently causes issues on The Legend of Zelda: Link's Awakening. - NV_parameter_buffer_object can't bind buffers using an offset different to zero. The used workaround is to copy to a temporary buffer (this doesn't happen often so it's not an issue). On the other hand, it has the following advantages: - Shaders build a lot faster. - We have control over how floating point rounding is done over individual instructions (SPIR-V on Vulkan can't do this). - Operations on shared memory can be unsigned and signed. - Transform feedbacks are dynamic state (not yet implemented). - Parameter buffers (uniform buffers) are per stage, matching NVN and hardware's behavior. - The API to bind and create assembly programs makes sense, unlike ARB_separate_shader_objects. |
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| .. | ||
| buffer_cache | ||
| engines | ||
| renderer_opengl | ||
| renderer_vulkan | ||
| shader | ||
| texture_cache | ||
| textures | ||
| CMakeLists.txt | ||
| dirty_flags.cpp | ||
| dirty_flags.h | ||
| dma_pusher.cpp | ||
| dma_pusher.h | ||
| fence_manager.h | ||
| gpu.cpp | ||
| gpu.h | ||
| gpu_asynch.cpp | ||
| gpu_asynch.h | ||
| gpu_synch.cpp | ||
| gpu_synch.h | ||
| gpu_thread.cpp | ||
| gpu_thread.h | ||
| guest_driver.cpp | ||
| guest_driver.h | ||
| macro_interpreter.cpp | ||
| macro_interpreter.h | ||
| memory_manager.cpp | ||
| memory_manager.h | ||
| morton.cpp | ||
| morton.h | ||
| query_cache.h | ||
| rasterizer_accelerated.cpp | ||
| rasterizer_accelerated.h | ||
| rasterizer_cache.cpp | ||
| rasterizer_cache.h | ||
| rasterizer_interface.h | ||
| renderer_base.cpp | ||
| renderer_base.h | ||
| sampler_cache.cpp | ||
| sampler_cache.h | ||
| surface.cpp | ||
| surface.h | ||
| video_core.cpp | ||
| video_core.h | ||