/*************************************************************************/ /* rendering_device_vulkan.h */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* 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_VULKAN_H #define RENDERING_DEVICE_VULKAN_H #include "core/oa_hash_map.h" #include "core/os/thread_safe.h" #include "core/rid_owner.h" #include "servers/rendering/rendering_device.h" #ifdef DEBUG_ENABLED #define _DEBUG #endif #include "vk_mem_alloc.h" #include //todo: //compute //push constants //views of texture slices class VulkanContext; class RenderingDeviceVulkan : public RenderingDevice { _THREAD_SAFE_CLASS_ // Miscellaneous tables that map // our enums to enums used // by vulkan. VkPhysicalDeviceLimits limits; static const VkFormat vulkan_formats[DATA_FORMAT_MAX]; static const char *named_formats[DATA_FORMAT_MAX]; static const VkCompareOp compare_operators[COMPARE_OP_MAX]; static const VkStencilOp stencil_operations[STENCIL_OP_MAX]; static const VkSampleCountFlagBits rasterization_sample_count[TEXTURE_SAMPLES_MAX]; static const VkLogicOp logic_operations[RenderingDevice::LOGIC_OP_MAX]; static const VkBlendFactor blend_factors[RenderingDevice::BLEND_FACTOR_MAX]; static const VkBlendOp blend_operations[RenderingDevice::BLEND_OP_MAX]; static const VkSamplerAddressMode address_modes[SAMPLER_REPEAT_MODE_MAX]; static const VkBorderColor sampler_border_colors[SAMPLER_BORDER_COLOR_MAX]; static const VkImageType vulkan_image_type[TEXTURE_TYPE_MAX]; // Functions used for format // validation, and ensures the // user passes valid data. static int get_format_vertex_size(DataFormat p_format); static uint32_t get_image_format_pixel_size(DataFormat p_format); static void get_compressed_image_format_block_dimensions(DataFormat p_format, uint32_t &r_w, uint32_t &r_h); uint32_t get_compressed_image_format_block_byte_size(DataFormat p_format); static uint32_t get_compressed_image_format_pixel_rshift(DataFormat p_format); static uint32_t get_image_format_required_size(DataFormat p_format, uint32_t p_width, uint32_t p_height, uint32_t p_depth, uint32_t p_mipmaps, uint32_t *r_blockw = nullptr, uint32_t *r_blockh = nullptr, uint32_t *r_depth = nullptr); static uint32_t get_image_required_mipmaps(uint32_t p_width, uint32_t p_height, uint32_t p_depth); static bool format_has_stencil(DataFormat p_format); /***************************/ /**** ID INFRASTRUCTURE ****/ /***************************/ enum IDType { ID_TYPE_FRAMEBUFFER_FORMAT, ID_TYPE_VERTEX_FORMAT, ID_TYPE_DRAW_LIST, ID_TYPE_SPLIT_DRAW_LIST, ID_TYPE_COMPUTE_LIST, ID_TYPE_MAX, ID_BASE_SHIFT = 58 //5 bits for ID types }; VkDevice device; Map> dependency_map; //IDs to IDs that depend on it Map> reverse_dependency_map; //same as above, but in reverse void _add_dependency(RID p_id, RID p_depends_on); void _free_dependencies(RID p_id); /*****************/ /**** TEXTURE ****/ /*****************/ // In Vulkan, the concept of textures does not exist, // intead there is the image (the memory prety much, // the view (how the memory is interpreted) and the // sampler (how it's sampled from the shader). // // Texture here includes the first two stages, but // It's possible to create textures sharing the image // but with different views. The main use case for this // is textures that can be read as both SRGB/Linear, // or slices of a texture (a mipmap, a layer, a 3D slice) // for a framebuffer to render into it. struct Texture { VkImage image; VmaAllocation allocation; VmaAllocationInfo allocation_info; VkImageView view; TextureType type; DataFormat format; TextureSamples samples; uint32_t width; uint32_t height; uint32_t depth; uint32_t layers; uint32_t mipmaps; uint32_t usage_flags; Vector allowed_shared_formats; VkImageLayout layout; uint32_t read_aspect_mask; uint32_t barrier_aspect_mask; bool bound; //bound to framebffer RID owner; }; RID_Owner texture_owner; uint32_t texture_upload_region_size_px; Vector _texture_get_data_from_image(Texture *tex, VkImage p_image, VmaAllocation p_allocation, uint32_t p_layer, bool p_2d = false); /*****************/ /**** SAMPLER ****/ /*****************/ RID_Owner sampler_owner; /***************************/ /**** BUFFER MANAGEMENT ****/ /***************************/ // These are temporary buffers on CPU memory that hold // the information until the CPU fetches it and places it // either on GPU buffers, or images (textures). It ensures // updates are properly synchronized with whathever the // GPU is doing. // // The logic here is as follows, only 3 of these // blocks are created at the beginning (one per frame) // they can each belong to a frame (assigned to current when // used) and they can only be reused after the same frame is // recycled. // // When CPU requires to allocate more than what is available, // more of these buffers are created. If a limit is reached, // then a fence will ensure will wait for blocks allocated // in previous frames are processed. If that fails, then // another fence will ensure everything pending for the current // frame is processed (effectively stalling). // // See the comments in the code to understand better how it works. struct StagingBufferBlock { VkBuffer buffer; VmaAllocation allocation; uint64_t frame_used; uint32_t fill_amount; }; Vector staging_buffer_blocks; int staging_buffer_current; uint32_t staging_buffer_block_size; uint64_t staging_buffer_max_size; bool staging_buffer_used; Error _staging_buffer_allocate(uint32_t p_amount, uint32_t p_required_align, uint32_t &r_alloc_offset, uint32_t &r_alloc_size, bool p_can_segment = true, bool p_on_draw_command_buffer = false); Error _insert_staging_block(); struct Buffer { uint32_t size; VkBuffer buffer; VmaAllocation allocation; VkDescriptorBufferInfo buffer_info; //used for binding Buffer() { size = 0; buffer = nullptr; allocation = nullptr; } }; Error _buffer_allocate(Buffer *p_buffer, uint32_t p_size, uint32_t p_usage, VmaMemoryUsage p_mapping); Error _buffer_free(Buffer *p_buffer); Error _buffer_update(Buffer *p_buffer, size_t p_offset, const uint8_t *p_data, size_t p_data_size, bool p_use_draw_command_buffer = false, uint32_t p_required_align = 32); void _full_barrier(bool p_sync_with_draw); void _memory_barrier(VkPipelineStageFlags p_src_stage_mask, VkPipelineStageFlags p_dst_stage_mask, VkAccessFlags p_src_access, VkAccessFlags p_dst_sccess, bool p_sync_with_draw); void _buffer_memory_barrier(VkBuffer buffer, uint64_t p_from, uint64_t p_size, VkPipelineStageFlags p_src_stage_mask, VkPipelineStageFlags p_dst_stage_mask, VkAccessFlags p_src_access, VkAccessFlags p_dst_sccess, bool p_sync_with_draw); /*********************/ /**** FRAMEBUFFER ****/ /*********************/ // In Vulkan, framebuffers work similar to how they // do in OpenGL, with the exception that // the "format" (vkRenderPass) is not dynamic // and must be more or less the same as the one // used for the render pipelines. struct FramebufferFormatKey { Vector attachments; bool operator<(const FramebufferFormatKey &p_key) const { int as = attachments.size(); int bs = p_key.attachments.size(); if (as != bs) { return as < bs; } const AttachmentFormat *af_a = attachments.ptr(); const AttachmentFormat *af_b = p_key.attachments.ptr(); for (int i = 0; i < as; i++) { const AttachmentFormat &a = af_a[i]; const AttachmentFormat &b = af_b[i]; if (a.format != b.format) { return a.format < b.format; } if (a.samples != b.samples) { return a.samples < b.samples; } if (a.usage_flags != b.usage_flags) { return a.usage_flags < b.usage_flags; } } return false; //equal } }; VkRenderPass _render_pass_create(const Vector &p_format, InitialAction p_initial_action, FinalAction p_final_action, InitialAction p_initial_depth_action, FinalAction p_final_depthcolor_action, int *r_color_attachment_count = nullptr); // This is a cache and it's never freed, it ensures // IDs for a given format are always unique. Map framebuffer_format_cache; struct FramebufferFormat { const Map::Element *E; VkRenderPass render_pass; //here for constructing shaders, never used, see section (7.2. Render Pass Compatibility from Vulkan spec) int color_attachments; //used for pipeline validation TextureSamples samples; }; Map framebuffer_formats; struct Framebuffer { FramebufferFormatID format_id; struct VersionKey { InitialAction initial_color_action; FinalAction final_color_action; InitialAction initial_depth_action; FinalAction final_depth_action; bool operator<(const VersionKey &p_key) const { if (initial_color_action == p_key.initial_color_action) { if (final_color_action == p_key.final_color_action) { if (initial_depth_action == p_key.initial_depth_action) { return final_depth_action < p_key.final_depth_action; } else { return initial_depth_action < p_key.initial_depth_action; } } else { return final_color_action < p_key.final_color_action; } } else { return initial_color_action < p_key.initial_color_action; } } }; uint32_t storage_mask; Vector texture_ids; struct Version { VkFramebuffer framebuffer; VkRenderPass render_pass; //this one is owned }; Map framebuffers; Size2 size; }; RID_Owner framebuffer_owner; /***********************/ /**** VERTEX BUFFER ****/ /***********************/ // Vertex buffers in Vulkan are similar to how // they work in OpenGL, except that instead of // an attribtue index, there is a buffer binding // index (for binding the buffers in real-time) // and a location index (what is used in the shader). // // This mapping is done here internally, and it's not // exposed. RID_Owner vertex_buffer_owner; struct VertexDescriptionKey { Vector vertex_formats; bool operator==(const VertexDescriptionKey &p_key) const { int vdc = vertex_formats.size(); int vdck = p_key.vertex_formats.size(); if (vdc != vdck) { return false; } else { const VertexDescription *a_ptr = vertex_formats.ptr(); const VertexDescription *b_ptr = p_key.vertex_formats.ptr(); for (int i = 0; i < vdc; i++) { const VertexDescription &a = a_ptr[i]; const VertexDescription &b = b_ptr[i]; if (a.location != b.location) { return false; } if (a.offset != b.offset) { return false; } if (a.format != b.format) { return false; } if (a.stride != b.stride) { return false; } if (a.frequency != b.frequency) { return false; } } return true; //they are equal } } uint32_t hash() const { int vdc = vertex_formats.size(); uint32_t h = hash_djb2_one_32(vdc); const VertexDescription *ptr = vertex_formats.ptr(); for (int i = 0; i < vdc; i++) { const VertexDescription &vd = ptr[i]; h = hash_djb2_one_32(vd.location, h); h = hash_djb2_one_32(vd.offset, h); h = hash_djb2_one_32(vd.format, h); h = hash_djb2_one_32(vd.stride, h); h = hash_djb2_one_32(vd.frequency, h); } return h; } }; struct VertexDescriptionHash { static _FORCE_INLINE_ uint32_t hash(const VertexDescriptionKey &p_key) { return p_key.hash(); } }; // This is a cache and it's never freed, it ensures that // ID used for a specific format always remain the same. HashMap vertex_format_cache; struct VertexDescriptionCache { Vector vertex_formats; VkVertexInputBindingDescription *bindings; VkVertexInputAttributeDescription *attributes; VkPipelineVertexInputStateCreateInfo create_info; }; Map vertex_formats; struct VertexArray { RID buffer; VertexFormatID description; int vertex_count; uint32_t max_instances_allowed; Vector buffers; //not owned, just referenced Vector offsets; }; RID_Owner vertex_array_owner; struct IndexBuffer : public Buffer { uint32_t max_index; //used for validation uint32_t index_count; VkIndexType index_type; bool supports_restart_indices; }; RID_Owner index_buffer_owner; struct IndexArray { uint32_t max_index; //remember the maximum index here too, for validation VkBuffer buffer; //not owned, inherited from index buffer uint32_t offset; uint32_t indices; VkIndexType index_type; bool supports_restart_indices; }; RID_Owner index_array_owner; /****************/ /**** SHADER ****/ /****************/ // Vulkan specifies a really complex behavior for the application // in order to tell when descriptor sets need to be re-bound (or not). // "When binding a descriptor set (see Descriptor Set Binding) to set // number N, if the previously bound descriptor sets for sets zero // through N-1 were all bound using compatible pipeline layouts, // then performing this binding does not disturb any of the lower numbered sets. // If, additionally, the previous bound descriptor set for set N was // bound using a pipeline layout compatible for set N, then the bindings // in sets numbered greater than N are also not disturbed." // As a result, we need to figure out quickly when something is no longer "compatible". // in order to avoid costly rebinds. enum { MAX_UNIFORM_SETS = 16 }; struct UniformInfo { UniformType type; int binding; uint32_t stages; int length; //size of arrays (in total elements), or ubos (in bytes * total elements) bool operator!=(const UniformInfo &p_info) const { return (binding != p_info.binding || type != p_info.type || stages != p_info.stages || length != p_info.length); } bool operator<(const UniformInfo &p_info) const { if (binding != p_info.binding) { return binding < p_info.binding; } if (type != p_info.type) { return type < p_info.type; } if (stages != p_info.stages) { return stages < p_info.stages; } return length < p_info.length; } }; struct UniformSetFormat { Vector uniform_info; bool operator<(const UniformSetFormat &p_format) const { uint32_t size = uniform_info.size(); uint32_t psize = p_format.uniform_info.size(); if (size != psize) { return size < psize; } const UniformInfo *infoptr = uniform_info.ptr(); const UniformInfo *pinfoptr = p_format.uniform_info.ptr(); for (uint32_t i = 0; i < size; i++) { if (infoptr[i] != pinfoptr[i]) { return infoptr[i] < pinfoptr[i]; } } return false; } }; // Always grows, never shrinks, ensuring unique IDs, but we assume // the amount of formats will never be a problem, as the amount of shaders // in a game is limited. Map uniform_set_format_cache; // Shaders in Vulkan are just pretty much // precompiled blocks of SPIR-V bytecode. They // are most likely not really compiled to host // assembly until a pipeline is created. // // When supplying the shaders, this implementation // will use the reflection abilities of glslang to // understand and cache everything required to // create and use the descriptor sets (Vulkan's // biggest pain). // // Additionally, hashes are created for every set // to do quick validation and ensuring the user // does not submit something invalid. struct Shader { struct Set { Vector uniform_info; VkDescriptorSetLayout descriptor_set_layout; }; uint32_t vertex_input_mask; //inputs used, this is mostly for validation int fragment_outputs; struct PushConstant { uint32_t push_constant_size; uint32_t push_constants_vk_stage; }; PushConstant push_constant; bool is_compute = false; int max_output; Vector sets; Vector set_formats; Vector pipeline_stages; VkPipelineLayout pipeline_layout; }; String _shader_uniform_debug(RID p_shader, int p_set = -1); RID_Owner shader_owner; /******************/ /**** UNIFORMS ****/ /******************/ // 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 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. enum { MAX_DESCRIPTOR_POOL_ELEMENT = 65535 }; struct DescriptorPoolKey { union { struct { uint16_t uniform_type[UNIFORM_TYPE_MAX]; //using 16 bits because, for sending arrays, each element is a pool set. }; struct { uint64_t key1; uint64_t key2; uint64_t key3; }; }; bool operator<(const DescriptorPoolKey &p_key) const { if (key1 != p_key.key1) { return key1 < p_key.key1; } if (key2 != p_key.key2) { return key2 < p_key.key2; } return key3 < p_key.key3; } DescriptorPoolKey() { key1 = 0; key2 = 0; key3 = 0; } }; struct DescriptorPool { VkDescriptorPool pool; uint32_t usage; }; Map> descriptor_pools; uint32_t max_descriptors_per_pool; DescriptorPool *_descriptor_pool_allocate(const DescriptorPoolKey &p_key); void _descriptor_pool_free(const DescriptorPoolKey &p_key, DescriptorPool *p_pool); RID_Owner uniform_buffer_owner; RID_Owner storage_buffer_owner; //texture buffer needs a view struct TextureBuffer { Buffer buffer; VkBufferView view; }; RID_Owner texture_buffer_owner; // This structure contains the descriptor set. They _need_ to be allocated // for a shader (and will be erased when this shader is erased), but should // work for other shaders as long as the hash matches. This covers using // them in shader variants. // // Keep also in mind that you can share buffers between descriptor sets, so // the above restriction is not too serious. struct UniformSet { uint32_t format; RID shader_id; uint32_t shader_set; DescriptorPool *pool; DescriptorPoolKey pool_key; VkDescriptorSet descriptor_set; //VkPipelineLayout pipeline_layout; //not owned, inherited from shader Vector attachable_textures; //used for validation Vector mutable_sampled_textures; //used for layout change Vector mutable_storage_textures; //used for layout change }; RID_Owner uniform_set_owner; /*******************/ /**** PIPELINES ****/ /*******************/ // Render pipeline contains ALL the // information required for drawing. // This includes all the rasterizer state // as well as shader used, framebuffer format, // etc. // While the pipeline is just a single object // (VkPipeline) a lot of values are also saved // here to do validation (vulkan does none by // default) and warn the user if something // was not supplied as intended. struct RenderPipeline { //Cached values for validation #ifdef DEBUG_ENABLED struct Validation { FramebufferFormatID framebuffer_format; uint32_t dynamic_state; VertexFormatID vertex_format; bool uses_restart_indices; uint32_t primitive_minimum; uint32_t primitive_divisor; } validation; #endif //Actual pipeline RID shader; Vector set_formats; VkPipelineLayout pipeline_layout; // not owned, needed for push constants VkPipeline pipeline; uint32_t push_constant_size; uint32_t push_constant_stages; }; RID_Owner render_pipeline_owner; struct ComputePipeline { RID shader; Vector set_formats; VkPipelineLayout pipeline_layout; // not owned, needed for push constants VkPipeline pipeline; uint32_t push_constant_size; uint32_t push_constant_stages; }; RID_Owner compute_pipeline_owner; /*******************/ /**** DRAW LIST ****/ /*******************/ // Draw list contains both the command buffer // used for drawing as well as a LOT of // information used for validation. This // validation is cheap so most of it can // also run in release builds. // When using split command lists, this is // implemented internally using secondary command // buffers. As they can be created in threads, // each needs it's own command pool. struct SplitDrawListAllocator { VkCommandPool command_pool; Vector command_buffers; //one for each frame }; Vector split_draw_list_allocators; struct DrawList { VkCommandBuffer command_buffer; //if persistent, this is owned, otherwise it's shared with the ringbuffer Rect2i viewport; struct SetState { uint32_t pipeline_expected_format; uint32_t uniform_set_format; VkDescriptorSet descriptor_set; RID uniform_set; bool bound; SetState() { bound = false; pipeline_expected_format = 0; uniform_set_format = 0; descriptor_set = VK_NULL_HANDLE; } }; struct State { SetState sets[MAX_UNIFORM_SETS]; uint32_t set_count; RID pipeline; RID pipeline_shader; VkPipelineLayout pipeline_layout; RID vertex_array; RID index_array; uint32_t pipeline_push_constant_stages; State() { set_count = 0; pipeline_layout = VK_NULL_HANDLE; pipeline_push_constant_stages = 0; } } state; #ifdef DEBUG_ENABLED struct Validation { bool active; //means command buffer was not closes, so you can keep adding things FramebufferFormatID framebuffer_format; //actual render pass values uint32_t dynamic_state; VertexFormatID vertex_format; //INVALID_ID if not set uint32_t vertex_array_size; //0 if not set uint32_t vertex_max_instances_allowed; bool index_buffer_uses_restart_indices; uint32_t index_array_size; //0 if index buffer not set uint32_t index_array_max_index; uint32_t index_array_offset; Vector set_formats; Vector set_bound; Vector set_rids; //last pipeline set values bool pipeline_active; uint32_t pipeline_dynamic_state; VertexFormatID pipeline_vertex_format; RID pipeline_shader; uint32_t invalid_set_from; bool pipeline_uses_restart_indices; uint32_t pipeline_primitive_divisor; uint32_t pipeline_primitive_minimum; Vector pipeline_set_formats; uint32_t pipeline_push_constant_size; bool pipeline_push_constant_suppplied; Validation() { active = true; dynamic_state = 0; vertex_format = INVALID_ID; vertex_array_size = 0; vertex_max_instances_allowed = 0xFFFFFFFF; framebuffer_format = INVALID_ID; index_array_size = 0; //not sent index_array_max_index = 0; //not set index_buffer_uses_restart_indices = false; invalid_set_from = 0; //pipeline state initalize pipeline_active = false; pipeline_dynamic_state = 0; pipeline_vertex_format = INVALID_ID; pipeline_uses_restart_indices = false; pipeline_push_constant_size = 0; pipeline_push_constant_suppplied = false; } } validation; #else struct Validation { uint32_t vertex_array_size; //0 if not set uint32_t index_array_size; //0 if index buffer not set uint32_t index_array_offset; Validation() { vertex_array_size = 0; index_array_size = 0; //not sent } } validation; #endif }; DrawList *draw_list; //one for regular draw lists, multiple for split. uint32_t draw_list_count; bool draw_list_split; Vector draw_list_bound_textures; bool draw_list_unbind_color_textures; bool draw_list_unbind_depth_textures; void _draw_list_insert_clear_region(DrawList *draw_list, Framebuffer *framebuffer, Point2i viewport_offset, Point2i viewport_size, bool p_clear_color, const Vector &p_clear_colors, bool p_clear_depth, float p_depth, uint32_t p_stencil); Error _draw_list_setup_framebuffer(Framebuffer *p_framebuffer, InitialAction p_initial_color_action, FinalAction p_final_color_action, InitialAction p_initial_depth_action, FinalAction p_final_depth_action, VkFramebuffer *r_framebuffer, VkRenderPass *r_render_pass); Error _draw_list_render_pass_begin(Framebuffer *framebuffer, InitialAction p_initial_color_action, FinalAction p_final_color_action, InitialAction p_initial_depth_action, FinalAction p_final_depth_action, const Vector &p_clear_colors, float p_clear_depth, uint32_t p_clear_stencil, Point2i viewport_offset, Point2i viewport_size, VkFramebuffer vkframebuffer, VkRenderPass render_pass, VkCommandBuffer command_buffer, VkSubpassContents subpass_contents); _FORCE_INLINE_ DrawList *_get_draw_list_ptr(DrawListID p_id); /**********************/ /**** COMPUTE LIST ****/ /**********************/ struct ComputeList { VkCommandBuffer command_buffer; //if persistent, this is owned, otherwise it's shared with the ringbuffer struct SetState { uint32_t pipeline_expected_format; uint32_t uniform_set_format; VkDescriptorSet descriptor_set; RID uniform_set; bool bound; SetState() { bound = false; pipeline_expected_format = 0; uniform_set_format = 0; descriptor_set = VK_NULL_HANDLE; } }; struct State { Set textures_to_sampled_layout; SetState sets[MAX_UNIFORM_SETS]; uint32_t set_count; RID pipeline; RID pipeline_shader; VkPipelineLayout pipeline_layout; uint32_t pipeline_push_constant_stages; State() { set_count = 0; pipeline_layout = VK_NULL_HANDLE; pipeline_push_constant_stages = 0; } } state; #ifdef DEBUG_ENABLED struct Validation { bool active; //means command buffer was not closes, so you can keep adding things Vector set_formats; Vector set_bound; Vector set_rids; //last pipeline set values bool pipeline_active; RID pipeline_shader; uint32_t invalid_set_from; Vector pipeline_set_formats; uint32_t pipeline_push_constant_size; bool pipeline_push_constant_suppplied; Validation() { active = true; invalid_set_from = 0; //pipeline state initalize pipeline_active = false; pipeline_push_constant_size = 0; pipeline_push_constant_suppplied = false; } } validation; #endif }; ComputeList *compute_list; /**************************/ /**** FRAME MANAGEMENT ****/ /**************************/ // This is the frame structure. There are normally // 3 of these (used for triple buffering), or 2 // (double buffering). They are cycled constantly. // // It contains two command buffers, one that is // used internally for setting up (creating stuff) // and another used mostly for drawing. // // They also contains a list of things that need // to be disposed of when deleted, which can't // happen immediately due to the asynchronous // nature of the GPU. They will get deleted // when the frame is cycled. struct Frame { //list in usage order, from last to free to first to free List buffers_to_dispose_of; List textures_to_dispose_of; List framebuffers_to_dispose_of; List samplers_to_dispose_of; List shaders_to_dispose_of; List buffer_views_to_dispose_of; List uniform_sets_to_dispose_of; List render_pipelines_to_dispose_of; List compute_pipelines_to_dispose_of; VkCommandPool command_pool; VkCommandBuffer setup_command_buffer; //used at the begining of every frame for set-up VkCommandBuffer draw_command_buffer; //used at the begining of every frame for set-up struct Timestamp { String description; uint64_t value; }; VkQueryPool timestamp_pool; String *timestamp_names; uint64_t *timestamp_cpu_values; uint32_t timestamp_count; String *timestamp_result_names; uint64_t *timestamp_cpu_result_values; uint64_t *timestamp_result_values; uint32_t timestamp_result_count; uint64_t index; }; uint32_t max_timestamp_query_elements; Frame *frames; //frames available, they are cycled (usually 3) int frame; //current frame int frame_count; //total amount of frames uint64_t frames_drawn; void _free_pending_resources(int p_frame); VmaAllocator allocator; VulkanContext *context; void _free_internal(RID p_id); void _flush(bool p_current_frame); bool screen_prepared; template void _free_rids(T &p_owner, const char *p_type); public: virtual RID texture_create(const TextureFormat &p_format, const TextureView &p_view, const Vector> &p_data = Vector>()); virtual RID texture_create_shared(const TextureView &p_view, RID p_with_texture); virtual RID texture_create_shared_from_slice(const TextureView &p_view, RID p_with_texture, uint32_t p_layer, uint32_t p_mipmap, TextureSliceType p_slice_type = TEXTURE_SLICE_2D); virtual Error texture_update(RID p_texture, uint32_t p_layer, const Vector &p_data, bool p_sync_with_draw = false); virtual Vector texture_get_data(RID p_texture, uint32_t p_layer); virtual bool texture_is_format_supported_for_usage(DataFormat p_format, uint32_t p_usage) const; virtual bool texture_is_shared(RID p_texture); virtual bool texture_is_valid(RID p_texture); virtual Error texture_copy(RID p_from_texture, RID p_to_texture, const Vector3 &p_from, const Vector3 &p_to, const Vector3 &p_size, uint32_t p_src_mipmap, uint32_t p_dst_mipmap, uint32_t p_src_layer, uint32_t p_dst_layer, bool p_sync_with_draw = false); virtual Error texture_clear(RID p_texture, const Color &p_color, uint32_t p_base_mipmap, uint32_t p_mipmaps, uint32_t p_base_layer, uint32_t p_layers, bool p_sync_with_draw = false); /*********************/ /**** FRAMEBUFFER ****/ /*********************/ virtual FramebufferFormatID framebuffer_format_create(const Vector &p_format); virtual TextureSamples framebuffer_format_get_texture_samples(FramebufferFormatID p_format); virtual RID framebuffer_create(const Vector &p_texture_attachments, FramebufferFormatID p_format_check = INVALID_ID); virtual FramebufferFormatID framebuffer_get_format(RID p_framebuffer); /*****************/ /**** SAMPLER ****/ /*****************/ virtual RID sampler_create(const SamplerState &p_state); /**********************/ /**** VERTEX ARRAY ****/ /**********************/ virtual RID vertex_buffer_create(uint32_t p_size_bytes, const Vector &p_data = Vector()); // Internally reference counted, this ID is warranted to be unique for the same description, but needs to be freed as many times as it was allocated virtual VertexFormatID vertex_format_create(const Vector &p_vertex_formats); virtual RID vertex_array_create(uint32_t p_vertex_count, VertexFormatID p_vertex_format, const Vector &p_src_buffers); virtual RID index_buffer_create(uint32_t p_size_indices, IndexBufferFormat p_format, const Vector &p_data = Vector(), bool p_use_restart_indices = false); virtual RID index_array_create(RID p_index_buffer, uint32_t p_index_offset, uint32_t p_index_count); /****************/ /**** SHADER ****/ /****************/ virtual RID shader_create(const Vector &p_stages); virtual uint32_t shader_get_vertex_input_attribute_mask(RID p_shader); /*****************/ /**** UNIFORM ****/ /*****************/ virtual RID uniform_buffer_create(uint32_t p_size_bytes, const Vector &p_data = Vector()); virtual RID storage_buffer_create(uint32_t p_size_bytes, const Vector &p_data = Vector()); virtual RID texture_buffer_create(uint32_t p_size_elements, DataFormat p_format, const Vector &p_data = Vector()); virtual RID uniform_set_create(const Vector &p_uniforms, RID p_shader, uint32_t p_shader_set); virtual bool uniform_set_is_valid(RID p_uniform_set); virtual Error buffer_update(RID p_buffer, uint32_t p_offset, uint32_t p_size, const void *p_data, bool p_sync_with_draw = false); //works for any buffer virtual Vector buffer_get_data(RID p_buffer); /*************************/ /**** RENDER PIPELINE ****/ /*************************/ virtual RID render_pipeline_create(RID p_shader, FramebufferFormatID p_framebuffer_format, VertexFormatID p_vertex_format, RenderPrimitive p_render_primitive, const PipelineRasterizationState &p_rasterization_state, const PipelineMultisampleState &p_multisample_state, const PipelineDepthStencilState &p_depth_stencil_state, const PipelineColorBlendState &p_blend_state, int p_dynamic_state_flags = 0); virtual bool render_pipeline_is_valid(RID p_pipeline); /**************************/ /**** COMPUTE PIPELINE ****/ /**************************/ virtual RID compute_pipeline_create(RID p_shader); virtual bool compute_pipeline_is_valid(RID p_pipeline); /****************/ /**** SCREEN ****/ /****************/ virtual int screen_get_width(DisplayServer::WindowID p_screen = 0) const; virtual int screen_get_height(DisplayServer::WindowID p_screen = 0) const; virtual FramebufferFormatID screen_get_framebuffer_format() const; /********************/ /**** DRAW LISTS ****/ /********************/ virtual DrawListID draw_list_begin_for_screen(DisplayServer::WindowID p_screen = 0, const Color &p_clear_color = Color()); virtual DrawListID draw_list_begin(RID p_framebuffer, InitialAction p_initial_color_action, FinalAction p_final_color_action, InitialAction p_initial_depth_action, FinalAction p_final_depth_action, const Vector &p_clear_color_values = Vector(), float p_clear_depth = 1.0, uint32_t p_clear_stencil = 0, const Rect2 &p_region = Rect2()); virtual Error draw_list_begin_split(RID p_framebuffer, uint32_t p_splits, DrawListID *r_split_ids, InitialAction p_initial_color_action, FinalAction p_final_color_action, InitialAction p_initial_depth_action, FinalAction p_final_depth_action, const Vector &p_clear_color_values = Vector(), float p_clear_depth = 1.0, uint32_t p_clear_stencil = 0, const Rect2 &p_region = Rect2()); virtual void draw_list_bind_render_pipeline(DrawListID p_list, RID p_render_pipeline); virtual void draw_list_bind_uniform_set(DrawListID p_list, RID p_uniform_set, uint32_t p_index); virtual void draw_list_bind_vertex_array(DrawListID p_list, RID p_vertex_array); virtual void draw_list_bind_index_array(DrawListID p_list, RID p_index_array); virtual void draw_list_set_line_width(DrawListID p_list, float p_width); virtual void draw_list_set_push_constant(DrawListID p_list, void *p_data, uint32_t p_data_size); virtual void draw_list_draw(DrawListID p_list, bool p_use_indices, uint32_t p_instances = 1, uint32_t p_procedural_vertices = 0); virtual void draw_list_enable_scissor(DrawListID p_list, const Rect2 &p_rect); virtual void draw_list_disable_scissor(DrawListID p_list); virtual void draw_list_end(); /***********************/ /**** COMPUTE LISTS ****/ /***********************/ virtual ComputeListID compute_list_begin(); virtual void compute_list_bind_compute_pipeline(ComputeListID p_list, RID p_compute_pipeline); virtual void compute_list_bind_uniform_set(ComputeListID p_list, RID p_uniform_set, uint32_t p_index); virtual void compute_list_set_push_constant(ComputeListID p_list, void *p_data, uint32_t p_data_size); virtual void compute_list_add_barrier(ComputeListID p_list); virtual void compute_list_dispatch(ComputeListID p_list, uint32_t p_x_groups, uint32_t p_y_groups, uint32_t p_z_groups); virtual void compute_list_end(); /**************/ /**** FREE ****/ /**************/ virtual void free(RID p_id); /****************/ /**** Timing ****/ /****************/ virtual void capture_timestamp(const String &p_name, bool p_sync_to_draw); virtual uint32_t get_captured_timestamps_count() const; virtual uint64_t get_captured_timestamps_frame() const; virtual uint64_t get_captured_timestamp_gpu_time(uint32_t p_index) const; virtual uint64_t get_captured_timestamp_cpu_time(uint32_t p_index) const; virtual String get_captured_timestamp_name(uint32_t p_index) const; /****************/ /**** Limits ****/ /****************/ virtual int limit_get(Limit p_limit); virtual void prepare_screen_for_drawing(); void initialize(VulkanContext *p_context); void finalize(); virtual void swap_buffers(); virtual uint32_t get_frame_delay() const; RenderingDeviceVulkan(); }; #endif // RENDERING_DEVICE_VULKAN_H