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godot/drivers/vulkan/rendering_device_vulkan.h

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/*************************************************************************/
/* 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
#ifndef _DEBUG
#define _DEBUG
#endif
#endif
#include "vk_mem_alloc.h"
#include <vulkan/vulkan.h>
//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<RID, Set<RID>> dependency_map; //IDs to IDs that depend on it
Map<RID, Set<RID>> 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<DataFormat> 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, true> texture_owner;
uint32_t texture_upload_region_size_px;
Vector<uint8_t> _texture_get_data_from_image(Texture *tex, VkImage p_image, VmaAllocation p_allocation, uint32_t p_layer, bool p_2d = false);
/*****************/
/**** SAMPLER ****/
/*****************/
RID_Owner<VkSampler> 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<StagingBufferBlock> 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 = VK_NULL_HANDLE;
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<AttachmentFormat> 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<AttachmentFormat> &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<FramebufferFormatKey, FramebufferFormatID> framebuffer_format_cache;
struct FramebufferFormat {
const Map<FramebufferFormatKey, FramebufferFormatID>::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<FramebufferFormatID, FramebufferFormat> 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<RID> texture_ids;
struct Version {
VkFramebuffer framebuffer;
VkRenderPass render_pass; //this one is owned
};
Map<VersionKey, Version> framebuffers;
Size2 size;
};
RID_Owner<Framebuffer, true> 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<Buffer, true> vertex_buffer_owner;
struct VertexDescriptionKey {
Vector<VertexDescription> 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<VertexDescriptionKey, VertexFormatID, VertexDescriptionHash> vertex_format_cache;
struct VertexDescriptionCache {
Vector<VertexDescription> vertex_formats;
VkVertexInputBindingDescription *bindings;
VkVertexInputAttributeDescription *attributes;
VkPipelineVertexInputStateCreateInfo create_info;
};
Map<VertexFormatID, VertexDescriptionCache> vertex_formats;
struct VertexArray {
RID buffer;
VertexFormatID description;
int vertex_count;
uint32_t max_instances_allowed;
Vector<VkBuffer> buffers; //not owned, just referenced
Vector<VkDeviceSize> offsets;
};
RID_Owner<VertexArray, true> 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<IndexBuffer, true> 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<IndexArray, true> 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<UniformInfo> 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<UniformSetFormat, uint32_t> 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<UniformInfo> 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<Set> sets;
Vector<uint32_t> set_formats;
Vector<VkPipelineShaderStageCreateInfo> pipeline_stages;
VkPipelineLayout pipeline_layout;
};
String _shader_uniform_debug(RID p_shader, int p_set = -1);
RID_Owner<Shader, true> 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<DescriptorPoolKey, Set<DescriptorPool *>> 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<Buffer, true> uniform_buffer_owner;
RID_Owner<Buffer, true> storage_buffer_owner;
//texture buffer needs a view
struct TextureBuffer {
Buffer buffer;
VkBufferView view;
};
RID_Owner<TextureBuffer, true> 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<RID> attachable_textures; //used for validation
Vector<Texture *> mutable_sampled_textures; //used for layout change
Vector<Texture *> mutable_storage_textures; //used for layout change
};
RID_Owner<UniformSet, true> 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<uint32_t> 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<RenderPipeline, true> render_pipeline_owner;
struct ComputePipeline {
RID shader;
Vector<uint32_t> 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<ComputePipeline, true> 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<VkCommandBuffer> command_buffers; //one for each frame
};
Vector<SplitDrawListAllocator> 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<uint32_t> set_formats;
Vector<bool> set_bound;
Vector<RID> 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<uint32_t> 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<RID> 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<Color> &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<Color> &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<Texture *> 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<uint32_t> set_formats;
Vector<bool> set_bound;
Vector<RID> set_rids;
//last pipeline set values
bool pipeline_active;
RID pipeline_shader;
uint32_t invalid_set_from;
Vector<uint32_t> 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<Buffer> buffers_to_dispose_of;
List<Texture> textures_to_dispose_of;
List<Framebuffer> framebuffers_to_dispose_of;
List<VkSampler> samplers_to_dispose_of;
List<Shader> shaders_to_dispose_of;
List<VkBufferView> buffer_views_to_dispose_of;
List<UniformSet> uniform_sets_to_dispose_of;
List<RenderPipeline> render_pipelines_to_dispose_of;
List<ComputePipeline> 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 <class T>
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<Vector<uint8_t>> &p_data = Vector<Vector<uint8_t>>());
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<uint8_t> &p_data, bool p_sync_with_draw = false);
virtual Vector<uint8_t> 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<AttachmentFormat> &p_format);
virtual TextureSamples framebuffer_format_get_texture_samples(FramebufferFormatID p_format);
virtual RID framebuffer_create(const Vector<RID> &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<uint8_t> &p_data = Vector<uint8_t>());
// 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<VertexDescription> &p_vertex_formats);
virtual RID vertex_array_create(uint32_t p_vertex_count, VertexFormatID p_vertex_format, const Vector<RID> &p_src_buffers);
virtual RID index_buffer_create(uint32_t p_size_indices, IndexBufferFormat p_format, const Vector<uint8_t> &p_data = Vector<uint8_t>(), 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<ShaderStageData> &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<uint8_t> &p_data = Vector<uint8_t>());
virtual RID storage_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data = Vector<uint8_t>());
virtual RID texture_buffer_create(uint32_t p_size_elements, DataFormat p_format, const Vector<uint8_t> &p_data = Vector<uint8_t>());
virtual RID uniform_set_create(const Vector<Uniform> &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<uint8_t> 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<Color> &p_clear_color_values = Vector<Color>(), 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<Color> &p_clear_color_values = Vector<Color>(), 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
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