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445 lines
22 KiB
C++
445 lines
22 KiB
C++
/**************************************************************************/
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/* rendering_device_driver_metal.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef RENDERING_DEVICE_DRIVER_METAL_H
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#define RENDERING_DEVICE_DRIVER_METAL_H
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#import "metal_objects.h"
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#import "servers/rendering/rendering_device_driver.h"
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#import <Metal/Metal.h>
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#import <spirv.hpp>
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#import <variant>
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#ifdef DEBUG_ENABLED
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#ifndef _DEBUG
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#define _DEBUG
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#endif
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#endif
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class RenderingContextDriverMetal;
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class API_AVAILABLE(macos(11.0), ios(14.0)) RenderingDeviceDriverMetal : public RenderingDeviceDriver {
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friend struct ShaderCacheEntry;
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template <typename T>
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using Result = std::variant<T, Error>;
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#pragma mark - Generic
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RenderingContextDriverMetal *context_driver = nullptr;
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RenderingContextDriver::Device context_device;
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id<MTLDevice> device = nil;
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uint32_t version_major = 2;
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uint32_t version_minor = 0;
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MetalDeviceProperties *metal_device_properties = nullptr;
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PixelFormats *pixel_formats = nullptr;
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std::unique_ptr<MDResourceCache> resource_cache;
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RDD::Capabilities capabilities;
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RDD::MultiviewCapabilities multiview_capabilities;
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id<MTLBinaryArchive> archive = nil;
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uint32_t archive_count = 0;
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id<MTLCommandQueue> device_queue = nil;
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id<MTLCaptureScope> device_scope = nil;
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String pipeline_cache_id;
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Error _create_device();
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Error _check_capabilities();
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#pragma mark - Shader Cache
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ShaderLoadStrategy _shader_load_strategy = ShaderLoadStrategy::DEFAULT;
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/**
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* The shader cache is a map of hashes of the Metal source to shader cache entries.
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*
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* To prevent unbounded growth of the cache, cache entries are automatically freed when
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* there are no more references to the MDLibrary associated with the cache entry.
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*/
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HashMap<SHA256Digest, ShaderCacheEntry *, HashableHasher<SHA256Digest>> _shader_cache;
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void shader_cache_free_entry(const SHA256Digest &key);
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public:
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Error initialize(uint32_t p_device_index, uint32_t p_frame_count) override final;
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#pragma mark - Memory
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#pragma mark - Buffers
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public:
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virtual BufferID buffer_create(uint64_t p_size, BitField<BufferUsageBits> p_usage, MemoryAllocationType p_allocation_type) override final;
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virtual bool buffer_set_texel_format(BufferID p_buffer, DataFormat p_format) override final;
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virtual void buffer_free(BufferID p_buffer) override final;
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virtual uint64_t buffer_get_allocation_size(BufferID p_buffer) override final;
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virtual uint8_t *buffer_map(BufferID p_buffer) override final;
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virtual void buffer_unmap(BufferID p_buffer) override final;
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#pragma mark - Texture
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private:
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// Returns true if the texture is a valid linear format.
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Result<bool> is_valid_linear(TextureFormat const &p_format) const;
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void _get_sub_resource(TextureID p_texture, const TextureSubresource &p_subresource, TextureCopyableLayout *r_layout) const;
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public:
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virtual TextureID texture_create(const TextureFormat &p_format, const TextureView &p_view) override final;
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virtual TextureID texture_create_from_extension(uint64_t p_native_texture, TextureType p_type, DataFormat p_format, uint32_t p_array_layers, bool p_depth_stencil) override final;
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virtual TextureID texture_create_shared(TextureID p_original_texture, const TextureView &p_view) override final;
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virtual TextureID texture_create_shared_from_slice(TextureID p_original_texture, const TextureView &p_view, TextureSliceType p_slice_type, uint32_t p_layer, uint32_t p_layers, uint32_t p_mipmap, uint32_t p_mipmaps) override final;
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virtual void texture_free(TextureID p_texture) override final;
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virtual uint64_t texture_get_allocation_size(TextureID p_texture) override final;
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virtual void texture_get_copyable_layout(TextureID p_texture, const TextureSubresource &p_subresource, TextureCopyableLayout *r_layout) override final;
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virtual uint8_t *texture_map(TextureID p_texture, const TextureSubresource &p_subresource) override final;
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virtual void texture_unmap(TextureID p_texture) override final;
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virtual BitField<TextureUsageBits> texture_get_usages_supported_by_format(DataFormat p_format, bool p_cpu_readable) override final;
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virtual bool texture_can_make_shared_with_format(TextureID p_texture, DataFormat p_format, bool &r_raw_reinterpretation) override final;
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#pragma mark - Sampler
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public:
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virtual SamplerID sampler_create(const SamplerState &p_state) final override;
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virtual void sampler_free(SamplerID p_sampler) final override;
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virtual bool sampler_is_format_supported_for_filter(DataFormat p_format, SamplerFilter p_filter) override final;
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#pragma mark - Vertex Array
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private:
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public:
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virtual VertexFormatID vertex_format_create(VectorView<VertexAttribute> p_vertex_attribs) override final;
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virtual void vertex_format_free(VertexFormatID p_vertex_format) override final;
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#pragma mark - Barriers
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virtual void command_pipeline_barrier(
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CommandBufferID p_cmd_buffer,
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BitField<PipelineStageBits> p_src_stages,
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BitField<PipelineStageBits> p_dst_stages,
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VectorView<MemoryBarrier> p_memory_barriers,
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VectorView<BufferBarrier> p_buffer_barriers,
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VectorView<TextureBarrier> p_texture_barriers) override final;
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#pragma mark - Fences
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private:
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struct Fence {
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dispatch_semaphore_t semaphore;
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Fence() :
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semaphore(dispatch_semaphore_create(0)) {}
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};
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public:
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virtual FenceID fence_create() override final;
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virtual Error fence_wait(FenceID p_fence) override final;
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virtual void fence_free(FenceID p_fence) override final;
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#pragma mark - Semaphores
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public:
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virtual SemaphoreID semaphore_create() override final;
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virtual void semaphore_free(SemaphoreID p_semaphore) override final;
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#pragma mark - Commands
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// ----- QUEUE FAMILY -----
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virtual CommandQueueFamilyID command_queue_family_get(BitField<CommandQueueFamilyBits> p_cmd_queue_family_bits, RenderingContextDriver::SurfaceID p_surface = 0) override final;
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// ----- QUEUE -----
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public:
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virtual CommandQueueID command_queue_create(CommandQueueFamilyID p_cmd_queue_family, bool p_identify_as_main_queue = false) override final;
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virtual Error command_queue_execute_and_present(CommandQueueID p_cmd_queue, VectorView<SemaphoreID> p_wait_semaphores, VectorView<CommandBufferID> p_cmd_buffers, VectorView<SemaphoreID> p_cmd_semaphores, FenceID p_cmd_fence, VectorView<SwapChainID> p_swap_chains) override final;
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virtual void command_queue_free(CommandQueueID p_cmd_queue) override final;
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// ----- POOL -----
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virtual CommandPoolID command_pool_create(CommandQueueFamilyID p_cmd_queue_family, CommandBufferType p_cmd_buffer_type) override final;
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virtual void command_pool_free(CommandPoolID p_cmd_pool) override final;
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// ----- BUFFER -----
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private:
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// Used to maintain references.
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Vector<MDCommandBuffer *> command_buffers;
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public:
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virtual CommandBufferID command_buffer_create(CommandPoolID p_cmd_pool) override final;
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virtual bool command_buffer_begin(CommandBufferID p_cmd_buffer) override final;
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virtual bool command_buffer_begin_secondary(CommandBufferID p_cmd_buffer, RenderPassID p_render_pass, uint32_t p_subpass, FramebufferID p_framebuffer) override final;
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virtual void command_buffer_end(CommandBufferID p_cmd_buffer) override final;
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virtual void command_buffer_execute_secondary(CommandBufferID p_cmd_buffer, VectorView<CommandBufferID> p_secondary_cmd_buffers) override final;
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#pragma mark - Swapchain
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private:
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struct SwapChain {
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RenderingContextDriver::SurfaceID surface = RenderingContextDriver::SurfaceID();
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RenderPassID render_pass;
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RDD::DataFormat data_format = DATA_FORMAT_MAX;
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SwapChain() :
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render_pass(nullptr) {}
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};
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void _swap_chain_release(SwapChain *p_swap_chain);
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void _swap_chain_release_buffers(SwapChain *p_swap_chain);
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public:
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virtual SwapChainID swap_chain_create(RenderingContextDriver::SurfaceID p_surface) override final;
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virtual Error swap_chain_resize(CommandQueueID p_cmd_queue, SwapChainID p_swap_chain, uint32_t p_desired_framebuffer_count) override final;
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virtual FramebufferID swap_chain_acquire_framebuffer(CommandQueueID p_cmd_queue, SwapChainID p_swap_chain, bool &r_resize_required) override final;
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virtual RenderPassID swap_chain_get_render_pass(SwapChainID p_swap_chain) override final;
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virtual DataFormat swap_chain_get_format(SwapChainID p_swap_chain) override final;
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virtual void swap_chain_set_max_fps(SwapChainID p_swap_chain, int p_max_fps) override final;
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virtual void swap_chain_free(SwapChainID p_swap_chain) override final;
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#pragma mark - Frame Buffer
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virtual FramebufferID framebuffer_create(RenderPassID p_render_pass, VectorView<TextureID> p_attachments, uint32_t p_width, uint32_t p_height) override final;
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virtual void framebuffer_free(FramebufferID p_framebuffer) override final;
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#pragma mark - Shader
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private:
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// Serialization types need access to private state.
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friend struct ShaderStageData;
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friend struct SpecializationConstantData;
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friend struct UniformData;
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friend struct ShaderBinaryData;
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friend struct PushConstantData;
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private:
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/// Contains additional metadata about the shader.
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struct ShaderMeta {
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/// Indicates whether the shader uses multiview.
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bool has_multiview = false;
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};
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Error _reflect_spirv16(VectorView<ShaderStageSPIRVData> p_spirv, ShaderReflection &r_reflection, ShaderMeta &r_shader_meta);
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public:
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virtual String shader_get_binary_cache_key() override final;
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virtual Vector<uint8_t> shader_compile_binary_from_spirv(VectorView<ShaderStageSPIRVData> p_spirv, const String &p_shader_name) override final;
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virtual ShaderID shader_create_from_bytecode(const Vector<uint8_t> &p_shader_binary, ShaderDescription &r_shader_desc, String &r_name) override final;
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virtual void shader_free(ShaderID p_shader) override final;
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virtual void shader_destroy_modules(ShaderID p_shader) override final;
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#pragma mark - Uniform Set
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public:
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virtual UniformSetID uniform_set_create(VectorView<BoundUniform> p_uniforms, ShaderID p_shader, uint32_t p_set_index) override final;
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virtual void uniform_set_free(UniformSetID p_uniform_set) override final;
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#pragma mark - Commands
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virtual void command_uniform_set_prepare_for_use(CommandBufferID p_cmd_buffer, UniformSetID p_uniform_set, ShaderID p_shader, uint32_t p_set_index) override final;
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#pragma mark Transfer
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private:
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enum class CopySource {
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Buffer,
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Texture,
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};
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void _copy_texture_buffer(CommandBufferID p_cmd_buffer,
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CopySource p_source,
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TextureID p_texture,
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BufferID p_buffer,
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VectorView<BufferTextureCopyRegion> p_regions);
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public:
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virtual void command_clear_buffer(CommandBufferID p_cmd_buffer, BufferID p_buffer, uint64_t p_offset, uint64_t p_size) override final;
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virtual void command_copy_buffer(CommandBufferID p_cmd_buffer, BufferID p_src_buffer, BufferID p_dst_buffer, VectorView<BufferCopyRegion> p_regions) override final;
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virtual void command_copy_texture(CommandBufferID p_cmd_buffer, TextureID p_src_texture, TextureLayout p_src_texture_layout, TextureID p_dst_texture, TextureLayout p_dst_texture_layout, VectorView<TextureCopyRegion> p_regions) override final;
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virtual void command_resolve_texture(CommandBufferID p_cmd_buffer, TextureID p_src_texture, TextureLayout p_src_texture_layout, uint32_t p_src_layer, uint32_t p_src_mipmap, TextureID p_dst_texture, TextureLayout p_dst_texture_layout, uint32_t p_dst_layer, uint32_t p_dst_mipmap) override final;
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virtual void command_clear_color_texture(CommandBufferID p_cmd_buffer, TextureID p_texture, TextureLayout p_texture_layout, const Color &p_color, const TextureSubresourceRange &p_subresources) override final;
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virtual void command_copy_buffer_to_texture(CommandBufferID p_cmd_buffer, BufferID p_src_buffer, TextureID p_dst_texture, TextureLayout p_dst_texture_layout, VectorView<BufferTextureCopyRegion> p_regions) override final;
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virtual void command_copy_texture_to_buffer(CommandBufferID p_cmd_buffer, TextureID p_src_texture, TextureLayout p_src_texture_layout, BufferID p_dst_buffer, VectorView<BufferTextureCopyRegion> p_regions) override final;
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#pragma mark Pipeline
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private:
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Result<id<MTLFunction>> _create_function(MDLibrary *p_library, NSString *p_name, VectorView<PipelineSpecializationConstant> &p_specialization_constants);
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public:
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virtual void pipeline_free(PipelineID p_pipeline_id) override final;
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// ----- BINDING -----
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virtual void command_bind_push_constants(CommandBufferID p_cmd_buffer, ShaderID p_shader, uint32_t p_first_index, VectorView<uint32_t> p_data) override final;
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// ----- CACHE -----
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private:
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String _pipeline_get_cache_path() const;
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public:
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virtual bool pipeline_cache_create(const Vector<uint8_t> &p_data) override final;
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virtual void pipeline_cache_free() override final;
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virtual size_t pipeline_cache_query_size() override final;
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virtual Vector<uint8_t> pipeline_cache_serialize() override final;
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#pragma mark Rendering
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// ----- SUBPASS -----
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virtual RenderPassID render_pass_create(VectorView<Attachment> p_attachments, VectorView<Subpass> p_subpasses, VectorView<SubpassDependency> p_subpass_dependencies, uint32_t p_view_count) override final;
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virtual void render_pass_free(RenderPassID p_render_pass) override final;
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// ----- COMMANDS -----
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public:
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virtual void command_begin_render_pass(CommandBufferID p_cmd_buffer, RenderPassID p_render_pass, FramebufferID p_framebuffer, CommandBufferType p_cmd_buffer_type, const Rect2i &p_rect, VectorView<RenderPassClearValue> p_clear_values) override final;
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virtual void command_end_render_pass(CommandBufferID p_cmd_buffer) override final;
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virtual void command_next_render_subpass(CommandBufferID p_cmd_buffer, CommandBufferType p_cmd_buffer_type) override final;
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virtual void command_render_set_viewport(CommandBufferID p_cmd_buffer, VectorView<Rect2i> p_viewports) override final;
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virtual void command_render_set_scissor(CommandBufferID p_cmd_buffer, VectorView<Rect2i> p_scissors) override final;
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virtual void command_render_clear_attachments(CommandBufferID p_cmd_buffer, VectorView<AttachmentClear> p_attachment_clears, VectorView<Rect2i> p_rects) override final;
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// Binding.
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virtual void command_bind_render_pipeline(CommandBufferID p_cmd_buffer, PipelineID p_pipeline) override final;
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virtual void command_bind_render_uniform_set(CommandBufferID p_cmd_buffer, UniformSetID p_uniform_set, ShaderID p_shader, uint32_t p_set_index) override final;
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// Drawing.
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virtual void command_render_draw(CommandBufferID p_cmd_buffer, uint32_t p_vertex_count, uint32_t p_instance_count, uint32_t p_base_vertex, uint32_t p_first_instance) override final;
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virtual void command_render_draw_indexed(CommandBufferID p_cmd_buffer, uint32_t p_index_count, uint32_t p_instance_count, uint32_t p_first_index, int32_t p_vertex_offset, uint32_t p_first_instance) override final;
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virtual void command_render_draw_indexed_indirect(CommandBufferID p_cmd_buffer, BufferID p_indirect_buffer, uint64_t p_offset, uint32_t p_draw_count, uint32_t p_stride) override final;
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virtual void command_render_draw_indexed_indirect_count(CommandBufferID p_cmd_buffer, BufferID p_indirect_buffer, uint64_t p_offset, BufferID p_count_buffer, uint64_t p_count_buffer_offset, uint32_t p_max_draw_count, uint32_t p_stride) override final;
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virtual void command_render_draw_indirect(CommandBufferID p_cmd_buffer, BufferID p_indirect_buffer, uint64_t p_offset, uint32_t p_draw_count, uint32_t p_stride) override final;
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virtual void command_render_draw_indirect_count(CommandBufferID p_cmd_buffer, BufferID p_indirect_buffer, uint64_t p_offset, BufferID p_count_buffer, uint64_t p_count_buffer_offset, uint32_t p_max_draw_count, uint32_t p_stride) override final;
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// Buffer binding.
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virtual void command_render_bind_vertex_buffers(CommandBufferID p_cmd_buffer, uint32_t p_binding_count, const BufferID *p_buffers, const uint64_t *p_offsets) override final;
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virtual void command_render_bind_index_buffer(CommandBufferID p_cmd_buffer, BufferID p_buffer, IndexBufferFormat p_format, uint64_t p_offset) override final;
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// Dynamic state.
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virtual void command_render_set_blend_constants(CommandBufferID p_cmd_buffer, const Color &p_constants) override final;
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virtual void command_render_set_line_width(CommandBufferID p_cmd_buffer, float p_width) override final;
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// ----- PIPELINE -----
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virtual PipelineID render_pipeline_create(
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ShaderID p_shader,
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VertexFormatID p_vertex_format,
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RenderPrimitive p_render_primitive,
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PipelineRasterizationState p_rasterization_state,
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PipelineMultisampleState p_multisample_state,
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PipelineDepthStencilState p_depth_stencil_state,
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PipelineColorBlendState p_blend_state,
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VectorView<int32_t> p_color_attachments,
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BitField<PipelineDynamicStateFlags> p_dynamic_state,
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RenderPassID p_render_pass,
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uint32_t p_render_subpass,
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VectorView<PipelineSpecializationConstant> p_specialization_constants) override final;
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#pragma mark - Compute
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// ----- COMMANDS -----
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// Binding.
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virtual void command_bind_compute_pipeline(CommandBufferID p_cmd_buffer, PipelineID p_pipeline) override final;
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virtual void command_bind_compute_uniform_set(CommandBufferID p_cmd_buffer, UniformSetID p_uniform_set, ShaderID p_shader, uint32_t p_set_index) override final;
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// Dispatching.
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virtual void command_compute_dispatch(CommandBufferID p_cmd_buffer, uint32_t p_x_groups, uint32_t p_y_groups, uint32_t p_z_groups) override final;
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virtual void command_compute_dispatch_indirect(CommandBufferID p_cmd_buffer, BufferID p_indirect_buffer, uint64_t p_offset) override final;
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// ----- PIPELINE -----
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virtual PipelineID compute_pipeline_create(ShaderID p_shader, VectorView<PipelineSpecializationConstant> p_specialization_constants) override final;
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#pragma mark - Queries
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// ----- TIMESTAMP -----
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// Basic.
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virtual QueryPoolID timestamp_query_pool_create(uint32_t p_query_count) override final;
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virtual void timestamp_query_pool_free(QueryPoolID p_pool_id) override final;
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virtual void timestamp_query_pool_get_results(QueryPoolID p_pool_id, uint32_t p_query_count, uint64_t *r_results) override final;
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virtual uint64_t timestamp_query_result_to_time(uint64_t p_result) override final;
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// Commands.
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virtual void command_timestamp_query_pool_reset(CommandBufferID p_cmd_buffer, QueryPoolID p_pool_id, uint32_t p_query_count) override final;
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virtual void command_timestamp_write(CommandBufferID p_cmd_buffer, QueryPoolID p_pool_id, uint32_t p_index) override final;
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#pragma mark - Labels
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virtual void command_begin_label(CommandBufferID p_cmd_buffer, const char *p_label_name, const Color &p_color) override final;
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virtual void command_end_label(CommandBufferID p_cmd_buffer) override final;
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#pragma mark - Debug
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virtual void command_insert_breadcrumb(CommandBufferID p_cmd_buffer, uint32_t p_data) override final;
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#pragma mark - Submission
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virtual void begin_segment(uint32_t p_frame_index, uint32_t p_frames_drawn) override final;
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virtual void end_segment() override final;
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#pragma mark - Miscellaneous
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virtual void set_object_name(ObjectType p_type, ID p_driver_id, const String &p_name) override final;
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virtual uint64_t get_resource_native_handle(DriverResource p_type, ID p_driver_id) override final;
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virtual uint64_t get_total_memory_used() override final;
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virtual uint64_t limit_get(Limit p_limit) override final;
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virtual uint64_t api_trait_get(ApiTrait p_trait) override final;
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virtual bool has_feature(Features p_feature) override final;
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virtual const MultiviewCapabilities &get_multiview_capabilities() override final;
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virtual String get_api_name() const override final { return "Metal"; }
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virtual String get_api_version() const override final;
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virtual String get_pipeline_cache_uuid() const override final;
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virtual const Capabilities &get_capabilities() const override final;
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virtual bool is_composite_alpha_supported(CommandQueueID p_queue) const override final;
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// Metal-specific.
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id<MTLDevice> get_device() const { return device; }
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PixelFormats &get_pixel_formats() const { return *pixel_formats; }
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MDResourceCache &get_resource_cache() const { return *resource_cache; }
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MetalDeviceProperties const &get_device_properties() const { return *metal_device_properties; }
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_FORCE_INLINE_ uint32_t get_metal_buffer_index_for_vertex_attribute_binding(uint32_t p_binding) {
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return (metal_device_properties->limits.maxPerStageBufferCount - 1) - p_binding;
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}
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size_t get_texel_buffer_alignment_for_format(RDD::DataFormat p_format) const;
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size_t get_texel_buffer_alignment_for_format(MTLPixelFormat p_format) const;
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/******************/
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RenderingDeviceDriverMetal(RenderingContextDriverMetal *p_context_driver);
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~RenderingDeviceDriverMetal();
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};
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#endif // RENDERING_DEVICE_DRIVER_METAL_H
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