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/**************************************************************************/
/* rendering_device_driver_vulkan.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef RENDERING_DEVICE_DRIVER_VULKAN_H
#define RENDERING_DEVICE_DRIVER_VULKAN_H
#include "core/templates/hash_map.h"
#include "core/templates/paged_allocator.h"
#include "servers/rendering/rendering_device_driver.h"
#ifdef DEBUG_ENABLED
#ifndef _MSC_VER
#define _DEBUG
#endif
#endif
#include "thirdparty/vulkan/vk_mem_alloc.h"
#ifdef USE_VOLK
#include <volk.h>
#else
#include <vulkan/vulkan.h>
#endif
class VulkanContext;
// Design principles:
// - Vulkan structs are zero-initialized and fields not requiring a non-zero value are omitted (except in cases where expresivity reasons apply).
class RenderingDeviceDriverVulkan : public RenderingDeviceDriver {
/*****************/
/**** GENERIC ****/
/*****************/
VulkanContext *context = nullptr;
VkDevice vk_device = VK_NULL_HANDLE; // Owned by the context.
/****************/
/**** MEMORY ****/
/****************/
VmaAllocator allocator = nullptr;
HashMap<uint32_t, VmaPool> small_allocs_pools;
VmaPool _find_or_create_small_allocs_pool(uint32_t p_mem_type_index);
/*****************/
/**** BUFFERS ****/
/*****************/
private:
struct BufferInfo {
VkBuffer vk_buffer = VK_NULL_HANDLE;
struct {
VmaAllocation handle = nullptr;
uint64_t size = UINT64_MAX;
} allocation;
uint64_t size = 0;
VkBufferView vk_view = VK_NULL_HANDLE; // For texel buffers.
};
public:
virtual BufferID buffer_create(uint64_t p_size, BitField<BufferUsageBits> p_usage, MemoryAllocationType p_allocation_type) override final;
virtual bool buffer_set_texel_format(BufferID p_buffer, DataFormat p_format) override final;
virtual void buffer_free(BufferID p_buffer) override final;
virtual uint64_t buffer_get_allocation_size(BufferID p_buffer) override final;
virtual uint8_t *buffer_map(BufferID p_buffer) override final;
virtual void buffer_unmap(BufferID p_buffer) override final;
/*****************/
/**** TEXTURE ****/
/*****************/
struct TextureInfo {
VkImageView vk_view = VK_NULL_HANDLE;
DataFormat rd_format = DATA_FORMAT_MAX;
VkImageCreateInfo vk_create_info = {};
VkImageViewCreateInfo vk_view_create_info = {};
struct {
VmaAllocation handle = nullptr;
VmaAllocationInfo info = {};
} allocation; // All 0/null if just a view.
};
VkSampleCountFlagBits _ensure_supported_sample_count(TextureSamples p_requested_sample_count);
public:
virtual TextureID texture_create(const TextureFormat &p_format, const TextureView &p_view) override final;
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;
virtual TextureID texture_create_shared(TextureID p_original_texture, const TextureView &p_view) override final;
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;
virtual void texture_free(TextureID p_texture) override final;
virtual uint64_t texture_get_allocation_size(TextureID p_texture) override final;
virtual void texture_get_copyable_layout(TextureID p_texture, const TextureSubresource &p_subresource, TextureCopyableLayout *r_layout) override final;
virtual uint8_t *texture_map(TextureID p_texture, const TextureSubresource &p_subresource) override final;
virtual void texture_unmap(TextureID p_texture) override final;
virtual BitField<TextureUsageBits> texture_get_usages_supported_by_format(DataFormat p_format, bool p_cpu_readable) override final;
/*****************/
/**** SAMPLER ****/
/*****************/
public:
virtual SamplerID sampler_create(const SamplerState &p_state) final override;
virtual void sampler_free(SamplerID p_sampler) final override;
virtual bool sampler_is_format_supported_for_filter(DataFormat p_format, SamplerFilter p_filter) override final;
/**********************/
/**** VERTEX ARRAY ****/
/**********************/
private:
struct VertexFormatInfo {
TightLocalVector<VkVertexInputBindingDescription> vk_bindings;
TightLocalVector<VkVertexInputAttributeDescription> vk_attributes;
VkPipelineVertexInputStateCreateInfo vk_create_info = {};
};
public:
virtual VertexFormatID vertex_format_create(VectorView<VertexAttribute> p_vertex_attribs) override final;
virtual void vertex_format_free(VertexFormatID p_vertex_format) override final;
/******************/
/**** BARRIERS ****/
/******************/
virtual void command_pipeline_barrier(
CommandBufferID p_cmd_buffer,
BitField<PipelineStageBits> p_src_stages,
BitField<PipelineStageBits> p_dst_stages,
VectorView<MemoryBarrier> p_memory_barriers,
VectorView<BufferBarrier> p_buffer_barriers,
VectorView<TextureBarrier> p_texture_barriers) override final;
/*************************/
/**** COMMAND BUFFERS ****/
/*************************/
private:
#ifdef DEBUG_ENABLED
// Vulkan doesn't need to know if the command buffers created in a pool
// will be primary or secondary, but RDD works like that, so we will enforce.
HashSet<CommandPoolID> secondary_cmd_pools;
HashSet<CommandBufferID> secondary_cmd_buffers;
#endif
public:
// ----- POOL -----
virtual CommandPoolID command_pool_create(CommandBufferType p_cmd_buffer_type) override final;
virtual void command_pool_free(CommandPoolID p_cmd_pool) override final;
// ----- BUFFER -----
virtual CommandBufferID command_buffer_create(CommandBufferType p_cmd_buffer_type, CommandPoolID p_cmd_pool) override final;
virtual bool command_buffer_begin(CommandBufferID p_cmd_buffer) override final;
virtual bool command_buffer_begin_secondary(CommandBufferID p_cmd_buffer, RenderPassID p_render_pass, uint32_t p_subpass, FramebufferID p_framebuffer) override final;
virtual void command_buffer_end(CommandBufferID p_cmd_buffer) override final;
virtual void command_buffer_execute_secondary(CommandBufferID p_cmd_buffer, VectorView<CommandBufferID> p_secondary_cmd_buffers) override final;
/*********************/
/**** FRAMEBUFFER ****/
/*********************/
virtual FramebufferID framebuffer_create(RenderPassID p_render_pass, VectorView<TextureID> p_attachments, uint32_t p_width, uint32_t p_height) override final;
virtual void framebuffer_free(FramebufferID p_framebuffer) override final;
/****************/
/**** SHADER ****/
/****************/
private:
struct ShaderBinary {
// Version 1: initial.
// Version 2: Added shader name.
// Version 3: Added writable.
// Version 4: 64-bit vertex input mask.
static const uint32_t VERSION = 4;
struct DataBinding {
uint32_t type = 0;
uint32_t binding = 0;
uint32_t stages = 0;
uint32_t length = 0; // Size of arrays (in total elements), or UBOs (in bytes * total elements).
uint32_t writable = 0;
};
struct SpecializationConstant {
uint32_t type = 0;
uint32_t constant_id = 0;
uint32_t int_value = 0;
uint32_t stage_flags = 0;
};
struct Data {
uint64_t vertex_input_mask = 0;
uint32_t fragment_output_mask = 0;
uint32_t specialization_constants_count = 0;
uint32_t is_compute = 0;
uint32_t compute_local_size[3] = {};
uint32_t set_count = 0;
uint32_t push_constant_size = 0;
uint32_t vk_push_constant_stages_mask = 0;
uint32_t stage_count = 0;
uint32_t shader_name_len = 0;
};
};
struct ShaderInfo {
VkShaderStageFlags vk_push_constant_stages = 0;
TightLocalVector<VkPipelineShaderStageCreateInfo> vk_stages_create_info;
TightLocalVector<VkDescriptorSetLayout> vk_descriptor_set_layouts;
VkPipelineLayout vk_pipeline_layout = VK_NULL_HANDLE;
};
public:
virtual String shader_get_binary_cache_key() override final;
virtual Vector<uint8_t> shader_compile_binary_from_spirv(VectorView<ShaderStageSPIRVData> p_spirv, const String &p_shader_name) override final;
virtual ShaderID shader_create_from_bytecode(const Vector<uint8_t> &p_shader_binary, ShaderDescription &r_shader_desc, String &r_name) override final;
virtual void shader_free(ShaderID p_shader) override final;
/*********************/
/**** UNIFORM SET ****/
/*********************/
// Descriptor sets require allocation from a pool.
// The documentation on how to use pools properly
// is scarce, and the documentation is strange.
//
// Basically, you can mix and match pools as you
// like, but you'll run into fragmentation issues.
// Because of this, the recommended approach is to
// create a pool for every descriptor set type, as
// this prevents fragmentation.
//
// This is implemented here as a having a list of
// pools (each can contain up to 64 sets) for each
// set layout. The amount of sets for each type
// is used as the key.
private:
static const uint32_t MAX_UNIFORM_POOL_ELEMENT = 65535;
struct DescriptorSetPoolKey {
uint16_t uniform_type[UNIFORM_TYPE_MAX] = {};
bool operator<(const DescriptorSetPoolKey &p_other) const {
return memcmp(uniform_type, p_other.uniform_type, sizeof(uniform_type)) < 0;
}
};
using DescriptorSetPools = RBMap<DescriptorSetPoolKey, HashMap<VkDescriptorPool, uint32_t>>;
DescriptorSetPools descriptor_set_pools;
uint32_t max_descriptor_sets_per_pool = 0;
VkDescriptorPool _descriptor_set_pool_find_or_create(const DescriptorSetPoolKey &p_key, DescriptorSetPools::Iterator *r_pool_sets_it);
void _descriptor_set_pool_unreference(DescriptorSetPools::Iterator p_pool_sets_it, VkDescriptorPool p_vk_descriptor_pool);
struct UniformSetInfo {
VkDescriptorSet vk_descriptor_set = VK_NULL_HANDLE;
VkDescriptorPool vk_descriptor_pool = VK_NULL_HANDLE;
DescriptorSetPools::Iterator pool_sets_it = {};
};
public:
virtual UniformSetID uniform_set_create(VectorView<BoundUniform> p_uniforms, ShaderID p_shader, uint32_t p_set_index) override final;
virtual void uniform_set_free(UniformSetID p_uniform_set) override final;
// ----- COMMANDS -----
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;
/******************/
/**** TRANSFER ****/
/******************/
virtual void command_clear_buffer(CommandBufferID p_cmd_buffer, BufferID p_buffer, uint64_t p_offset, uint64_t p_size) override final;
virtual void command_copy_buffer(CommandBufferID p_cmd_buffer, BufferID p_src_buffer, BufferID p_dst_buffer, VectorView<BufferCopyRegion> p_regions) override final;
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;
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;
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;
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;
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;
/******************/
/**** PIPELINE ****/
/******************/
private:
struct PipelineCacheHeader {
uint32_t magic = 0;
uint32_t data_size = 0;
uint64_t data_hash = 0;
uint32_t vendor_id = 0;
uint32_t device_id = 0;
uint32_t driver_version = 0;
uint8_t uuid[VK_UUID_SIZE] = {};
uint8_t driver_abi = 0;
};
struct PipelineCache {
String file_path;
size_t current_size = 0;
Vector<uint8_t> buffer; // Header then data.
VkPipelineCache vk_cache = VK_NULL_HANDLE;
};
static int caching_instance_count;
PipelineCache pipelines_cache;
public:
virtual void pipeline_free(PipelineID p_pipeline) override final;
// ----- BINDING -----
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;
// ----- CACHE -----
virtual bool pipeline_cache_create(const Vector<uint8_t> &p_data) override final;
virtual void pipeline_cache_free() override final;
virtual size_t pipeline_cache_query_size() override final;
virtual Vector<uint8_t> pipeline_cache_serialize() override final;
/*******************/
/**** RENDERING ****/
/*******************/
// ----- SUBPASS -----
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;
virtual void render_pass_free(RenderPassID p_render_pass) override final;
// ----- COMMANDS -----
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;
virtual void command_end_render_pass(CommandBufferID p_cmd_buffer) override final;
virtual void command_next_render_subpass(CommandBufferID p_cmd_buffer, CommandBufferType p_cmd_buffer_type) override final;
virtual void command_render_set_viewport(CommandBufferID p_cmd_buffer, VectorView<Rect2i> p_viewports) override final;
virtual void command_render_set_scissor(CommandBufferID p_cmd_buffer, VectorView<Rect2i> p_scissors) override final;
virtual void command_render_clear_attachments(CommandBufferID p_cmd_buffer, VectorView<AttachmentClear> p_attachment_clears, VectorView<Rect2i> p_rects) override final;
// Binding.
virtual void command_bind_render_pipeline(CommandBufferID p_cmd_buffer, PipelineID p_pipeline) override final;
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;
// Drawing.
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;
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;
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;
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;
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;
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;
// Buffer binding.
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;
virtual void command_render_bind_index_buffer(CommandBufferID p_cmd_buffer, BufferID p_buffer, IndexBufferFormat p_format, uint64_t p_offset) override final;
// Dynamic state.
virtual void command_render_set_blend_constants(CommandBufferID p_cmd_buffer, const Color &p_constants) override final;
virtual void command_render_set_line_width(CommandBufferID p_cmd_buffer, float p_width) override final;
// ----- PIPELINE -----
virtual PipelineID render_pipeline_create(
ShaderID p_shader,
VertexFormatID p_vertex_format,
RenderPrimitive p_render_primitive,
PipelineRasterizationState p_rasterization_state,
PipelineMultisampleState p_multisample_state,
PipelineDepthStencilState p_depth_stencil_state,
PipelineColorBlendState p_blend_state,
VectorView<int32_t> p_color_attachments,
BitField<PipelineDynamicStateFlags> p_dynamic_state,
RenderPassID p_render_pass,
uint32_t p_render_subpass,
VectorView<PipelineSpecializationConstant> p_specialization_constants) override final;
/*****************/
/**** COMPUTE ****/
/*****************/
// ----- COMMANDS -----
// Binding.
virtual void command_bind_compute_pipeline(CommandBufferID p_cmd_buffer, PipelineID p_pipeline) override final;
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;
// Dispatching.
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;
virtual void command_compute_dispatch_indirect(CommandBufferID p_cmd_buffer, BufferID p_indirect_buffer, uint64_t p_offset) override final;
// ----- PIPELINE -----
virtual PipelineID compute_pipeline_create(ShaderID p_shader, VectorView<PipelineSpecializationConstant> p_specialization_constants) override final;
/*****************/
/**** QUERIES ****/
/*****************/
// ----- TIMESTAMP -----
// Basic.
virtual QueryPoolID timestamp_query_pool_create(uint32_t p_query_count) override final;
virtual void timestamp_query_pool_free(QueryPoolID p_pool_id) override final;
virtual void timestamp_query_pool_get_results(QueryPoolID p_pool_id, uint32_t p_query_count, uint64_t *r_results) override final;
virtual uint64_t timestamp_query_result_to_time(uint64_t p_result) override final;
// Commands.
virtual void command_timestamp_query_pool_reset(CommandBufferID p_cmd_buffer, QueryPoolID p_pool_id, uint32_t p_query_count) override final;
virtual void command_timestamp_write(CommandBufferID p_cmd_buffer, QueryPoolID p_pool_id, uint32_t p_index) override final;
/****************/
/**** LABELS ****/
/****************/
virtual void command_begin_label(CommandBufferID p_cmd_buffer, const char *p_label_name, const Color &p_color) override final;
virtual void command_end_label(CommandBufferID p_cmd_buffer) override final;
/****************/
/**** SCREEN ****/
/****************/
virtual DataFormat screen_get_format() override final;
/********************/
/**** SUBMISSION ****/
/********************/
virtual void begin_segment(CommandBufferID p_cmd_buffer, uint32_t p_frame_index, uint32_t p_frames_drawn) override final;
virtual void end_segment() override final;
/**************/
/**** MISC ****/
/**************/
VkPhysicalDeviceLimits limits = {};
virtual void set_object_name(ObjectType p_type, ID p_driver_id, const String &p_name) override final;
virtual uint64_t get_resource_native_handle(DriverResource p_type, ID p_driver_id) override final;
virtual uint64_t get_total_memory_used() override final;
virtual uint64_t limit_get(Limit p_limit) override final;
virtual uint64_t api_trait_get(ApiTrait p_trait) override final;
virtual bool has_feature(Features p_feature) override final;
virtual const MultiviewCapabilities &get_multiview_capabilities() override final;
private:
/*********************/
/**** BOOKKEEPING ****/
/*********************/
using VersatileResource = VersatileResourceTemplate<
BufferInfo,
TextureInfo,
VertexFormatInfo,
ShaderInfo,
UniformSetInfo>;
PagedAllocator<VersatileResource> resources_allocator;
/******************/
public:
RenderingDeviceDriverVulkan(VulkanContext *p_context, VkDevice p_vk_device);
virtual ~RenderingDeviceDriverVulkan();
};
#endif // RENDERING_DEVICE_DRIVER_VULKAN_H