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rendering_device.h
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/**************************************************************************/
/* rendering_device.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. */
/**************************************************************************/
#pragma once
#include "core/object/worker_thread_pool.h"
#include "core/os/condition_variable.h"
#include "core/os/thread_safe.h"
#include "core/templates/local_vector.h"
#include "core/templates/rid_owner.h"
#include "core/variant/typed_array.h"
#include "servers/display_server.h"
#include "servers/rendering/rendering_device_commons.h"
#include "servers/rendering/rendering_device_driver.h"
#include "servers/rendering/rendering_device_graph.h"
class RDTextureFormat;
class RDTextureView;
class RDAttachmentFormat;
class RDSamplerState;
class RDVertexAttribute;
class RDShaderSource;
class RDShaderSPIRV;
class RDUniform;
class RDPipelineRasterizationState;
class RDPipelineMultisampleState;
class RDPipelineDepthStencilState;
class RDPipelineColorBlendState;
class RDFramebufferPass;
class RDPipelineSpecializationConstant;
class RenderingDevice : public RenderingDeviceCommons {
GDCLASS(RenderingDevice, Object)
_THREAD_SAFE_CLASS_
private:
Thread::ID render_thread_id;
public:
enum ShaderLanguage {
SHADER_LANGUAGE_GLSL,
SHADER_LANGUAGE_HLSL
};
typedef int64_t DrawListID;
typedef int64_t ComputeListID;
typedef String (*ShaderSPIRVGetCacheKeyFunction)(const RenderingDevice *p_render_device);
typedef Vector<uint8_t> (*ShaderCompileToSPIRVFunction)(ShaderStage p_stage, const String &p_source_code, ShaderLanguage p_language, String *r_error, const RenderingDevice *p_render_device);
typedef Vector<uint8_t> (*ShaderCacheFunction)(ShaderStage p_stage, const String &p_source_code, ShaderLanguage p_language);
typedef void (*InvalidationCallback)(void *);
private:
static ShaderCompileToSPIRVFunction compile_to_spirv_function;
static ShaderCacheFunction cache_function;
static ShaderSPIRVGetCacheKeyFunction get_spirv_cache_key_function;
static RenderingDevice *singleton;
RenderingContextDriver *context = nullptr;
RenderingDeviceDriver *driver = nullptr;
RenderingContextDriver::Device device;
bool local_device_processing = false;
bool is_main_instance = false;
protected:
static void _bind_methods();
#ifndef DISABLE_DEPRECATED
RID _shader_create_from_bytecode_bind_compat_79606(const Vector<uint8_t> &p_shader_binary);
static void _bind_compatibility_methods();
#endif
/***************************/
/**** ID INFRASTRUCTURE ****/
/***************************/
public:
//base numeric ID for all types
enum {
INVALID_FORMAT_ID = -1
};
enum IDType {
ID_TYPE_FRAMEBUFFER_FORMAT,
ID_TYPE_VERTEX_FORMAT,
ID_TYPE_DRAW_LIST,
ID_TYPE_COMPUTE_LIST = 4,
ID_TYPE_MAX,
ID_BASE_SHIFT = 58, // 5 bits for ID types.
ID_MASK = (ID_BASE_SHIFT - 1),
};
private:
HashMap<RID, HashSet<RID>> dependency_map; // IDs to IDs that depend on it.
HashMap<RID, HashSet<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);
private:
/***************************/
/**** 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 whatever 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.
enum StagingRequiredAction {
STAGING_REQUIRED_ACTION_NONE,
STAGING_REQUIRED_ACTION_FLUSH_AND_STALL_ALL,
STAGING_REQUIRED_ACTION_STALL_PREVIOUS,
};
struct StagingBufferBlock {
RDD::BufferID driver_id;
uint64_t frame_used = 0;
uint32_t fill_amount = 0;
};
struct StagingBuffers {
Vector<StagingBufferBlock> blocks;
int current = 0;
uint32_t block_size = 0;
uint64_t max_size = 0;
BitField<RDD::BufferUsageBits> usage_bits;
bool used = false;
};
Error _staging_buffer_allocate(StagingBuffers &p_staging_buffers, uint32_t p_amount, uint32_t p_required_align, uint32_t &r_alloc_offset, uint32_t &r_alloc_size, StagingRequiredAction &r_required_action, bool p_can_segment = true);
void _staging_buffer_execute_required_action(StagingBuffers &p_staging_buffers, StagingRequiredAction p_required_action);
Error _insert_staging_block(StagingBuffers &p_staging_buffers);
StagingBuffers upload_staging_buffers;
StagingBuffers download_staging_buffers;
struct Buffer {
RDD::BufferID driver_id;
uint32_t size = 0;
BitField<RDD::BufferUsageBits> usage;
RDG::ResourceTracker *draw_tracker = nullptr;
int32_t transfer_worker_index = -1;
uint64_t transfer_worker_operation = 0;
};
Buffer *_get_buffer_from_owner(RID p_buffer);
Error _buffer_initialize(Buffer *p_buffer, const uint8_t *p_data, size_t p_data_size, uint32_t p_required_align = 32);
void update_perf_report();
// Flag for batching descriptor sets.
bool descriptor_set_batching = true;
// When true, the final draw call that copies our offscreen result into the Swapchain is put into its
// own cmd buffer, so that the whole rendering can start early instead of having to wait for the
// swapchain semaphore to be signaled (which causes bubbles).
bool split_swapchain_into_its_own_cmd_buffer = true;
uint32_t gpu_copy_count = 0;
uint32_t copy_bytes_count = 0;
uint32_t prev_gpu_copy_count = 0;
uint32_t prev_copy_bytes_count = 0;
RID_Owner<Buffer, true> uniform_buffer_owner;
RID_Owner<Buffer, true> storage_buffer_owner;
RID_Owner<Buffer, true> texture_buffer_owner;
struct BufferGetDataRequest {
uint32_t frame_local_index = 0;
uint32_t frame_local_count = 0;
Callable callback;
uint32_t size = 0;
};
public:
Error buffer_copy(RID p_src_buffer, RID p_dst_buffer, uint32_t p_src_offset, uint32_t p_dst_offset, uint32_t p_size);
Error buffer_update(RID p_buffer, uint32_t p_offset, uint32_t p_size, const void *p_data);
Error buffer_clear(RID p_buffer, uint32_t p_offset, uint32_t p_size);
Vector<uint8_t> buffer_get_data(RID p_buffer, uint32_t p_offset = 0, uint32_t p_size = 0); // This causes stall, only use to retrieve large buffers for saving.
Error buffer_get_data_async(RID p_buffer, const Callable &p_callback, uint32_t p_offset = 0, uint32_t p_size = 0);
uint64_t buffer_get_device_address(RID p_buffer);
private:
/******************/
/**** CALLBACK ****/
/******************/
public:
enum CallbackResourceType {
CALLBACK_RESOURCE_TYPE_TEXTURE,
CALLBACK_RESOURCE_TYPE_BUFFER,
};
enum CallbackResourceUsage {
CALLBACK_RESOURCE_USAGE_NONE,
CALLBACK_RESOURCE_USAGE_COPY_FROM,
CALLBACK_RESOURCE_USAGE_COPY_TO,
CALLBACK_RESOURCE_USAGE_RESOLVE_FROM,
CALLBACK_RESOURCE_USAGE_RESOLVE_TO,
CALLBACK_RESOURCE_USAGE_UNIFORM_BUFFER_READ,
CALLBACK_RESOURCE_USAGE_INDIRECT_BUFFER_READ,
CALLBACK_RESOURCE_USAGE_TEXTURE_BUFFER_READ,
CALLBACK_RESOURCE_USAGE_TEXTURE_BUFFER_READ_WRITE,
CALLBACK_RESOURCE_USAGE_STORAGE_BUFFER_READ,
CALLBACK_RESOURCE_USAGE_STORAGE_BUFFER_READ_WRITE,
CALLBACK_RESOURCE_USAGE_VERTEX_BUFFER_READ,
CALLBACK_RESOURCE_USAGE_INDEX_BUFFER_READ,
CALLBACK_RESOURCE_USAGE_TEXTURE_SAMPLE,
CALLBACK_RESOURCE_USAGE_STORAGE_IMAGE_READ,
CALLBACK_RESOURCE_USAGE_STORAGE_IMAGE_READ_WRITE,
CALLBACK_RESOURCE_USAGE_ATTACHMENT_COLOR_READ_WRITE,
CALLBACK_RESOURCE_USAGE_ATTACHMENT_DEPTH_STENCIL_READ_WRITE,
CALLBACK_RESOURCE_USAGE_ATTACHMENT_FRAGMENT_SHADING_RATE_READ,
CALLBACK_RESOURCE_USAGE_ATTACHMENT_FRAGMENT_DENSITY_MAP_READ,
CALLBACK_RESOURCE_USAGE_MAX
};
struct CallbackResource {
RID rid;
CallbackResourceType type = CALLBACK_RESOURCE_TYPE_TEXTURE;
CallbackResourceUsage usage = CALLBACK_RESOURCE_USAGE_NONE;
};
Error driver_callback_add(RDD::DriverCallback p_callback, void *p_userdata, VectorView<CallbackResource> p_resources);
/*****************/
/**** TEXTURE ****/
/*****************/
// In modern APIs, the concept of textures may not exist;
// instead there is the image (the memory pretty 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 {
struct SharedFallback {
uint32_t revision = 1;
RDD::TextureID texture;
RDG::ResourceTracker *texture_tracker = nullptr;
RDD::BufferID buffer;
RDG::ResourceTracker *buffer_tracker = nullptr;
bool raw_reinterpretation = false;
};
RDD::TextureID driver_id;
TextureType type = TEXTURE_TYPE_MAX;
DataFormat format = DATA_FORMAT_MAX;
TextureSamples samples = TEXTURE_SAMPLES_MAX;
TextureSliceType slice_type = TEXTURE_SLICE_MAX;
Rect2i slice_rect;
uint32_t width = 0;
uint32_t height = 0;
uint32_t depth = 0;
uint32_t layers = 0;
uint32_t mipmaps = 0;
uint32_t usage_flags = 0;
uint32_t base_mipmap = 0;
uint32_t base_layer = 0;
Vector<DataFormat> allowed_shared_formats;
bool is_resolve_buffer = false;
bool is_discardable = false;
bool has_initial_data = false;
BitField<RDD::TextureAspectBits> read_aspect_flags;
BitField<RDD::TextureAspectBits> barrier_aspect_flags;
bool bound = false; // Bound to framebuffer.
RID owner;
RDG::ResourceTracker *draw_tracker = nullptr;
HashMap<Rect2i, RDG::ResourceTracker *> slice_trackers;
SharedFallback *shared_fallback = nullptr;
int32_t transfer_worker_index = -1;
uint64_t transfer_worker_operation = 0;
RDD::TextureSubresourceRange barrier_range() const {
RDD::TextureSubresourceRange r;
r.aspect = barrier_aspect_flags;
r.base_mipmap = base_mipmap;
r.mipmap_count = mipmaps;
r.base_layer = base_layer;
r.layer_count = layers;
return r;
}
TextureFormat texture_format() const {
TextureFormat tf;
tf.format = format;
tf.width = width;
tf.height = height;
tf.depth = depth;
tf.array_layers = layers;
tf.mipmaps = mipmaps;
tf.texture_type = type;
tf.samples = samples;
tf.usage_bits = usage_flags;
tf.shareable_formats = allowed_shared_formats;
tf.is_resolve_buffer = is_resolve_buffer;
tf.is_discardable = is_discardable;
return tf;
}
};
RID_Owner<Texture, true> texture_owner;
uint32_t texture_upload_region_size_px = 0;
uint32_t texture_download_region_size_px = 0;
Vector<uint8_t> _texture_get_data(Texture *tex, uint32_t p_layer, bool p_2d = false);
uint32_t _texture_layer_count(Texture *p_texture) const;
uint32_t _texture_alignment(Texture *p_texture) const;
Error _texture_initialize(RID p_texture, uint32_t p_layer, const Vector<uint8_t> &p_data, bool p_immediate_flush = false);
void _texture_check_shared_fallback(Texture *p_texture);
void _texture_update_shared_fallback(RID p_texture_rid, Texture *p_texture, bool p_for_writing);
void _texture_free_shared_fallback(Texture *p_texture);
void _texture_copy_shared(RID p_src_texture_rid, Texture *p_src_texture, RID p_dst_texture_rid, Texture *p_dst_texture);
void _texture_create_reinterpret_buffer(Texture *p_texture);
uint32_t _texture_vrs_method_to_usage_bits() const;
struct TextureGetDataRequest {
uint32_t frame_local_index = 0;
uint32_t frame_local_count = 0;
Callable callback;
uint32_t width = 0;
uint32_t height = 0;
uint32_t depth = 0;
uint32_t mipmaps = 0;
RDD::DataFormat format = RDD::DATA_FORMAT_MAX;
};
public:
struct TextureView {
DataFormat format_override = DATA_FORMAT_MAX; // // Means, use same as format.
TextureSwizzle swizzle_r = TEXTURE_SWIZZLE_R;
TextureSwizzle swizzle_g = TEXTURE_SWIZZLE_G;
TextureSwizzle swizzle_b = TEXTURE_SWIZZLE_B;
TextureSwizzle swizzle_a = TEXTURE_SWIZZLE_A;
bool operator==(const TextureView &p_other) const {
if (format_override != p_other.format_override) {
return false;
} else if (swizzle_r != p_other.swizzle_r) {
return false;
} else if (swizzle_g != p_other.swizzle_g) {
return false;
} else if (swizzle_b != p_other.swizzle_b) {
return false;
} else if (swizzle_a != p_other.swizzle_a) {
return false;
} else {
return true;
}
}
};
RID texture_create(const TextureFormat &p_format, const TextureView &p_view, const Vector<Vector<uint8_t>> &p_data = Vector<Vector<uint8_t>>());
RID texture_create_shared(const TextureView &p_view, RID p_with_texture);
RID texture_create_from_extension(TextureType p_type, DataFormat p_format, TextureSamples p_samples, BitField<RenderingDevice::TextureUsageBits> p_usage, uint64_t p_image, uint64_t p_width, uint64_t p_height, uint64_t p_depth, uint64_t p_layers);
RID texture_create_shared_from_slice(const TextureView &p_view, RID p_with_texture, uint32_t p_layer, uint32_t p_mipmap, uint32_t p_mipmaps = 1, TextureSliceType p_slice_type = TEXTURE_SLICE_2D, uint32_t p_layers = 0);
Error texture_update(RID p_texture, uint32_t p_layer, const Vector<uint8_t> &p_data);
Vector<uint8_t> texture_get_data(RID p_texture, uint32_t p_layer); // CPU textures will return immediately, while GPU textures will most likely force a flush
Error texture_get_data_async(RID p_texture, uint32_t p_layer, const Callable &p_callback);
bool texture_is_format_supported_for_usage(DataFormat p_format, BitField<TextureUsageBits> p_usage) const;
bool texture_is_shared(RID p_texture);
bool texture_is_valid(RID p_texture);
TextureFormat texture_get_format(RID p_texture);
Size2i texture_size(RID p_texture);
#ifndef DISABLE_DEPRECATED
uint64_t texture_get_native_handle(RID p_texture);
#endif
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);
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);
Error texture_resolve_multisample(RID p_from_texture, RID p_to_texture);
void texture_set_discardable(RID p_texture, bool p_discardable);
bool texture_is_discardable(RID p_texture);
private:
/*************/
/**** VRS ****/
/*************/
enum VRSMethod {
VRS_METHOD_NONE,
VRS_METHOD_FRAGMENT_SHADING_RATE,
VRS_METHOD_FRAGMENT_DENSITY_MAP,
};
VRSMethod vrs_method = VRS_METHOD_NONE;
DataFormat vrs_format = DATA_FORMAT_MAX;
Size2i vrs_texel_size;
static RDG::ResourceUsage _vrs_usage_from_method(VRSMethod p_method);
static RDD::PipelineStageBits _vrs_stages_from_method(VRSMethod p_method);
static RDD::TextureLayout _vrs_layout_from_method(VRSMethod p_method);
void _vrs_detect_method();
public:
DataFormat vrs_get_format() const;
Size2i vrs_get_texel_size() const;
/*********************/
/**** FRAMEBUFFER ****/
/*********************/
// In modern APIs, generally, framebuffers work similar to how they
// do in OpenGL, with the exception that
// the "format" (RDD::RenderPassID) is not dynamic
// and must be more or less the same as the one
// used for the render pipelines.
struct AttachmentFormat {
enum : uint32_t {
UNUSED_ATTACHMENT = 0xFFFFFFFF
};
DataFormat format;
TextureSamples samples;
uint32_t usage_flags;
AttachmentFormat() {
format = DATA_FORMAT_R8G8B8A8_UNORM;
samples = TEXTURE_SAMPLES_1;
usage_flags = 0;
}
};
struct FramebufferPass {
Vector<int32_t> color_attachments;
Vector<int32_t> input_attachments;
Vector<int32_t> resolve_attachments;
Vector<int32_t> preserve_attachments;
int32_t depth_attachment = ATTACHMENT_UNUSED;
};
typedef int64_t FramebufferFormatID;
private:
struct FramebufferFormatKey {
Vector<AttachmentFormat> attachments;
Vector<FramebufferPass> passes;
uint32_t view_count = 1;
VRSMethod vrs_method = VRS_METHOD_NONE;
int32_t vrs_attachment = ATTACHMENT_UNUSED;
Size2i vrs_texel_size;
bool operator<(const FramebufferFormatKey &p_key) const {
if (vrs_texel_size != p_key.vrs_texel_size) {
return vrs_texel_size < p_key.vrs_texel_size;
}
if (vrs_attachment != p_key.vrs_attachment) {
return vrs_attachment < p_key.vrs_attachment;
}
if (vrs_method != p_key.vrs_method) {
return vrs_method < p_key.vrs_method;
}
if (view_count != p_key.view_count) {
return view_count < p_key.view_count;
}
uint32_t pass_size = passes.size();
uint32_t key_pass_size = p_key.passes.size();
if (pass_size != key_pass_size) {
return pass_size < key_pass_size;
}
const FramebufferPass *pass_ptr = passes.ptr();
const FramebufferPass *key_pass_ptr = p_key.passes.ptr();
for (uint32_t i = 0; i < pass_size; i++) {
{ // Compare color attachments.
uint32_t attachment_size = pass_ptr[i].color_attachments.size();
uint32_t key_attachment_size = key_pass_ptr[i].color_attachments.size();
if (attachment_size != key_attachment_size) {
return attachment_size < key_attachment_size;
}
const int32_t *pass_attachment_ptr = pass_ptr[i].color_attachments.ptr();
const int32_t *key_pass_attachment_ptr = key_pass_ptr[i].color_attachments.ptr();
for (uint32_t j = 0; j < attachment_size; j++) {
if (pass_attachment_ptr[j] != key_pass_attachment_ptr[j]) {
return pass_attachment_ptr[j] < key_pass_attachment_ptr[j];
}
}
}
{ // Compare input attachments.
uint32_t attachment_size = pass_ptr[i].input_attachments.size();
uint32_t key_attachment_size = key_pass_ptr[i].input_attachments.size();
if (attachment_size != key_attachment_size) {
return attachment_size < key_attachment_size;
}
const int32_t *pass_attachment_ptr = pass_ptr[i].input_attachments.ptr();
const int32_t *key_pass_attachment_ptr = key_pass_ptr[i].input_attachments.ptr();
for (uint32_t j = 0; j < attachment_size; j++) {
if (pass_attachment_ptr[j] != key_pass_attachment_ptr[j]) {
return pass_attachment_ptr[j] < key_pass_attachment_ptr[j];
}
}
}
{ // Compare resolve attachments.
uint32_t attachment_size = pass_ptr[i].resolve_attachments.size();
uint32_t key_attachment_size = key_pass_ptr[i].resolve_attachments.size();
if (attachment_size != key_attachment_size) {
return attachment_size < key_attachment_size;
}
const int32_t *pass_attachment_ptr = pass_ptr[i].resolve_attachments.ptr();
const int32_t *key_pass_attachment_ptr = key_pass_ptr[i].resolve_attachments.ptr();
for (uint32_t j = 0; j < attachment_size; j++) {
if (pass_attachment_ptr[j] != key_pass_attachment_ptr[j]) {
return pass_attachment_ptr[j] < key_pass_attachment_ptr[j];
}
}
}
{ // Compare preserve attachments.
uint32_t attachment_size = pass_ptr[i].preserve_attachments.size();
uint32_t key_attachment_size = key_pass_ptr[i].preserve_attachments.size();
if (attachment_size != key_attachment_size) {
return attachment_size < key_attachment_size;
}
const int32_t *pass_attachment_ptr = pass_ptr[i].preserve_attachments.ptr();
const int32_t *key_pass_attachment_ptr = key_pass_ptr[i].preserve_attachments.ptr();
for (uint32_t j = 0; j < attachment_size; j++) {
if (pass_attachment_ptr[j] != key_pass_attachment_ptr[j]) {
return pass_attachment_ptr[j] < key_pass_attachment_ptr[j];
}
}
}
if (pass_ptr[i].depth_attachment != key_pass_ptr[i].depth_attachment) {
return pass_ptr[i].depth_attachment < key_pass_ptr[i].depth_attachment;
}
}
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.
}
};
static RDD::RenderPassID _render_pass_create(RenderingDeviceDriver *p_driver, const Vector<AttachmentFormat> &p_attachments, const Vector<FramebufferPass> &p_passes, VectorView<RDD::AttachmentLoadOp> p_load_ops, VectorView<RDD::AttachmentStoreOp> p_store_ops, uint32_t p_view_count = 1, VRSMethod p_vrs_method = VRS_METHOD_NONE, int32_t p_vrs_attachment = -1, Size2i p_vrs_texel_size = Size2i(), Vector<TextureSamples> *r_samples = nullptr);
static RDD::RenderPassID _render_pass_create_from_graph(RenderingDeviceDriver *p_driver, VectorView<RDD::AttachmentLoadOp> p_load_ops, VectorView<RDD::AttachmentStoreOp> p_store_ops, void *p_user_data);
// This is a cache and it's never freed, it ensures
// IDs for a given format are always unique.
RBMap<FramebufferFormatKey, FramebufferFormatID> framebuffer_format_cache;
struct FramebufferFormat {
const RBMap<FramebufferFormatKey, FramebufferFormatID>::Element *E;
RDD::RenderPassID render_pass; // Here for constructing shaders, never used, see section (7.2. Render Pass Compatibility from Vulkan spec).
Vector<TextureSamples> pass_samples;
uint32_t view_count = 1; // Number of views.
};
HashMap<FramebufferFormatID, FramebufferFormat> framebuffer_formats;
struct Framebuffer {
RenderingDevice *rendering_device = nullptr;
FramebufferFormatID format_id;
uint32_t storage_mask = 0;
Vector<RID> texture_ids;
InvalidationCallback invalidated_callback = nullptr;
void *invalidated_callback_userdata = nullptr;
RDG::FramebufferCache *framebuffer_cache = nullptr;
Size2 size;
uint32_t view_count;
};
RID_Owner<Framebuffer, true> framebuffer_owner;
public:
// This ID is warranted to be unique for the same formats, does not need to be freed
FramebufferFormatID framebuffer_format_create(const Vector<AttachmentFormat> &p_format, uint32_t p_view_count = 1, int32_t p_vrs_attachment = -1);
FramebufferFormatID framebuffer_format_create_multipass(const Vector<AttachmentFormat> &p_attachments, const Vector<FramebufferPass> &p_passes, uint32_t p_view_count = 1, int32_t p_vrs_attachment = -1);
FramebufferFormatID framebuffer_format_create_empty(TextureSamples p_samples = TEXTURE_SAMPLES_1);
TextureSamples framebuffer_format_get_texture_samples(FramebufferFormatID p_format, uint32_t p_pass = 0);
RID framebuffer_create(const Vector<RID> &p_texture_attachments, FramebufferFormatID p_format_check = INVALID_ID, uint32_t p_view_count = 1);
RID framebuffer_create_multipass(const Vector<RID> &p_texture_attachments, const Vector<FramebufferPass> &p_passes, FramebufferFormatID p_format_check = INVALID_ID, uint32_t p_view_count = 1);
RID framebuffer_create_empty(const Size2i &p_size, TextureSamples p_samples = TEXTURE_SAMPLES_1, FramebufferFormatID p_format_check = INVALID_ID);
bool framebuffer_is_valid(RID p_framebuffer) const;
void framebuffer_set_invalidation_callback(RID p_framebuffer, InvalidationCallback p_callback, void *p_userdata);
FramebufferFormatID framebuffer_get_format(RID p_framebuffer);
Size2 framebuffer_get_size(RID p_framebuffer);
/*****************/
/**** SAMPLER ****/
/*****************/
private:
RID_Owner<RDD::SamplerID, true> sampler_owner;
public:
RID sampler_create(const SamplerState &p_state);
bool sampler_is_format_supported_for_filter(DataFormat p_format, SamplerFilter p_sampler_filter) const;
/**********************/
/**** VERTEX ARRAY ****/
/**********************/
typedef int64_t VertexFormatID;
private:
// Vertex buffers in Vulkan are similar to how
// they work in OpenGL, except that instead of
// an attribute 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<VertexAttribute> 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 VertexAttribute *a_ptr = vertex_formats.ptr();
const VertexAttribute *b_ptr = p_key.vertex_formats.ptr();
for (int i = 0; i < vdc; i++) {
const VertexAttribute &a = a_ptr[i];
const VertexAttribute &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_murmur3_one_32(vdc);
const VertexAttribute *ptr = vertex_formats.ptr();
for (int i = 0; i < vdc; i++) {
const VertexAttribute &vd = ptr[i];
h = hash_murmur3_one_32(vd.location, h);
h = hash_murmur3_one_32(vd.offset, h);
h = hash_murmur3_one_32(vd.format, h);
h = hash_murmur3_one_32(vd.stride, h);
h = hash_murmur3_one_32(vd.frequency, h);
}
return hash_fmix32(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<VertexAttribute> vertex_formats;
RDD::VertexFormatID driver_id;
};
HashMap<VertexFormatID, VertexDescriptionCache> vertex_formats;
struct VertexArray {
RID buffer;
VertexFormatID description;
int vertex_count = 0;
uint32_t max_instances_allowed = 0;
Vector<RDD::BufferID> buffers; // Not owned, just referenced.
Vector<RDG::ResourceTracker *> draw_trackers; // Not owned, just referenced.
Vector<uint64_t> offsets;
Vector<int32_t> transfer_worker_indices;
Vector<uint64_t> transfer_worker_operations;
HashSet<RID> untracked_buffers;
};
RID_Owner<VertexArray, true> vertex_array_owner;
struct IndexBuffer : public Buffer {
uint32_t max_index = 0; // Used for validation.
uint32_t index_count = 0;
IndexBufferFormat format = INDEX_BUFFER_FORMAT_UINT16;
bool supports_restart_indices = false;
};
RID_Owner<IndexBuffer, true> index_buffer_owner;
struct IndexArray {
uint32_t max_index = 0; // Remember the maximum index here too, for validation.
RDD::BufferID driver_id; // Not owned, inherited from index buffer.
RDG::ResourceTracker *draw_tracker = nullptr; // Not owned, inherited from index buffer.
uint32_t offset = 0;
uint32_t indices = 0;
IndexBufferFormat format = INDEX_BUFFER_FORMAT_UINT16;
bool supports_restart_indices = false;
int32_t transfer_worker_index = -1;
uint64_t transfer_worker_operation = 0;
};
RID_Owner<IndexArray, true> index_array_owner;
public:
enum BufferCreationBits {
BUFFER_CREATION_DEVICE_ADDRESS_BIT = (1 << 0),
BUFFER_CREATION_AS_STORAGE_BIT = (1 << 1),
};
enum StorageBufferUsage {
STORAGE_BUFFER_USAGE_DISPATCH_INDIRECT = (1 << 0),
};
RID vertex_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data = Vector<uint8_t>(), BitField<BufferCreationBits> p_creation_bits = 0);
// This ID is warranted to be unique for the same formats, does not need to be freed
VertexFormatID vertex_format_create(const Vector<VertexAttribute> &p_vertex_descriptions);
RID vertex_array_create(uint32_t p_vertex_count, VertexFormatID p_vertex_format, const Vector<RID> &p_src_buffers, const Vector<uint64_t> &p_offsets = Vector<uint64_t>());
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, BitField<BufferCreationBits> p_creation_bits = 0);
RID index_array_create(RID p_index_buffer, uint32_t p_index_offset, uint32_t p_index_count);
/****************/
/**** SHADER ****/
/****************/
// Some APIs (e.g., 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.
private:
struct UniformSetFormat {
Vector<ShaderUniform> uniforms;
_FORCE_INLINE_ bool operator<(const UniformSetFormat &p_other) const {
if (uniforms.size() != p_other.uniforms.size()) {
return uniforms.size() < p_other.uniforms.size();
}
for (int i = 0; i < uniforms.size(); i++) {
if (uniforms[i] < p_other.uniforms[i]) {
return true;
} else if (p_other.uniforms[i] < uniforms[i]) {
return false;
}
}
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.
RBMap<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 : public ShaderDescription {
String name; // Used for debug.
RDD::ShaderID driver_id;
uint32_t layout_hash = 0;
BitField<RDD::PipelineStageBits> stage_bits;
Vector<uint32_t> set_formats;
};
String _shader_uniform_debug(RID p_shader, int p_set = -1);
RID_Owner<Shader, true> shader_owner;
#ifndef DISABLE_DEPRECATED
public:
enum BarrierMask {
BARRIER_MASK_VERTEX = 1,
BARRIER_MASK_FRAGMENT = 8,
BARRIER_MASK_COMPUTE = 2,
BARRIER_MASK_TRANSFER = 4,
BARRIER_MASK_RASTER = BARRIER_MASK_VERTEX | BARRIER_MASK_FRAGMENT, // 9,
BARRIER_MASK_ALL_BARRIERS = 0x7FFF, // all flags set
BARRIER_MASK_NO_BARRIER = 0x8000,
};
enum InitialAction {
INITIAL_ACTION_LOAD,
INITIAL_ACTION_CLEAR,
INITIAL_ACTION_DISCARD,
INITIAL_ACTION_MAX,
INITIAL_ACTION_CLEAR_REGION = INITIAL_ACTION_CLEAR,
INITIAL_ACTION_CLEAR_REGION_CONTINUE = INITIAL_ACTION_CLEAR,
INITIAL_ACTION_KEEP = INITIAL_ACTION_LOAD,
INITIAL_ACTION_DROP = INITIAL_ACTION_DISCARD,
INITIAL_ACTION_CONTINUE = INITIAL_ACTION_LOAD,
};
enum FinalAction {
FINAL_ACTION_STORE,
FINAL_ACTION_DISCARD,
FINAL_ACTION_MAX,
FINAL_ACTION_READ = FINAL_ACTION_STORE,
FINAL_ACTION_CONTINUE = FINAL_ACTION_STORE,
};
void barrier(BitField<BarrierMask> p_from = BARRIER_MASK_ALL_BARRIERS, BitField<BarrierMask> p_to = BARRIER_MASK_ALL_BARRIERS);
void full_barrier();
void draw_command_insert_label(String p_label_name, const Color &p_color = Color(1, 1, 1, 1));
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(), const Vector<RID> &p_storage_textures = Vector<RID>());
Error draw_list_switch_to_next_pass_split(uint32_t p_splits, DrawListID *r_split_ids);
Vector<int64_t> _draw_list_begin_split(RID p_framebuffer, uint32_t p_splits, 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(), const TypedArray<RID> &p_storage_textures = TypedArray<RID>());
Vector<int64_t> _draw_list_switch_to_next_pass_split(uint32_t p_splits);
private:
void _draw_list_end_bind_compat_81356(BitField<BarrierMask> p_post_barrier);
void _compute_list_end_bind_compat_81356(BitField<BarrierMask> p_post_barrier);
void _barrier_bind_compat_81356(BitField<BarrierMask> p_from, BitField<BarrierMask> p_to);
void _draw_list_end_bind_compat_84976(BitField<BarrierMask> p_post_barrier);
void _compute_list_end_bind_compat_84976(BitField<BarrierMask> p_post_barrier);
InitialAction _convert_initial_action_84976(InitialAction p_old_initial_action);
FinalAction _convert_final_action_84976(FinalAction p_old_final_action);
DrawListID _draw_list_begin_bind_compat_84976(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, float p_clear_depth, uint32_t p_clear_stencil, const Rect2 &p_region, const TypedArray<RID> &p_storage_textures);
ComputeListID _compute_list_begin_bind_compat_84976(bool p_allow_draw_overlap);
Error _buffer_update_bind_compat_84976(RID p_buffer, uint32_t p_offset, uint32_t p_size, const Vector<uint8_t> &p_data, BitField<BarrierMask> p_post_barrier);
Error _buffer_clear_bind_compat_84976(RID p_buffer, uint32_t p_offset, uint32_t p_size, BitField<BarrierMask> p_post_barrier);
Error _texture_update_bind_compat_84976(RID p_texture, uint32_t p_layer, const Vector<uint8_t> &p_data, BitField<BarrierMask> p_post_barrier);
Error _texture_copy_bind_compat_84976(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, BitField<BarrierMask> p_post_barrier);
Error _texture_clear_bind_compat_84976(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, BitField<BarrierMask> p_post_barrier);
Error _texture_resolve_multisample_bind_compat_84976(RID p_from_texture, RID p_to_texture, BitField<BarrierMask> p_post_barrier);
FramebufferFormatID _screen_get_framebuffer_format_bind_compat_87340() const;
DrawListID _draw_list_begin_bind_compat_90993(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, float p_clear_depth, uint32_t p_clear_stencil, const Rect2 &p_region);
DrawListID _draw_list_begin_bind_compat_98670(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, float p_clear_depth, uint32_t p_clear_stencil, const Rect2 &p_region, uint32_t p_breadcrumb);
RID _uniform_buffer_create_bind_compat_101561(uint32_t p_size_bytes, const Vector<uint8_t> &p_data);
RID _vertex_buffer_create_bind_compat_101561(uint32_t p_size_bytes, const Vector<uint8_t> &p_data, bool p_use_as_storage);
RID _index_buffer_create_bind_compat_101561(uint32_t p_size_indices, IndexBufferFormat p_format, const Vector<uint8_t> &p_data, bool p_use_restart_indices);
RID _storage_buffer_create_bind_compat_101561(uint32_t p_size, const Vector<uint8_t> &p_data, BitField<StorageBufferUsage> p_usage);
#endif
public:
RenderingDeviceDriver *get_device_driver() const { return driver; }
RenderingContextDriver *get_context_driver() const { return context; }
const RDD::Capabilities &get_device_capabilities() const { return driver->get_capabilities(); }
bool has_feature(const Features p_feature) const;
Vector<uint8_t> shader_compile_spirv_from_source(ShaderStage p_stage, const String &p_source_code, ShaderLanguage p_language = SHADER_LANGUAGE_GLSL, String *r_error = nullptr, bool p_allow_cache = true);
String shader_get_spirv_cache_key() const;
static void shader_set_compile_to_spirv_function(ShaderCompileToSPIRVFunction p_function);
static void shader_set_spirv_cache_function(ShaderCacheFunction p_function);
static void shader_set_get_cache_key_function(ShaderSPIRVGetCacheKeyFunction p_function);
String shader_get_binary_cache_key() const;
Vector<uint8_t> shader_compile_binary_from_spirv(const Vector<ShaderStageSPIRVData> &p_spirv, const String &p_shader_name = "");
RID shader_create_from_spirv(const Vector<ShaderStageSPIRVData> &p_spirv, const String &p_shader_name = "");
RID shader_create_from_bytecode(const Vector<uint8_t> &p_shader_binary, RID p_placeholder = RID());
RID shader_create_placeholder();
void shader_destroy_modules(RID p_shader);
uint64_t shader_get_vertex_input_attribute_mask(RID p_shader);
/******************/
/**** UNIFORMS ****/
/******************/
String get_perf_report() const;
/*****************/
/**** BUFFERS ****/
/*****************/
RID uniform_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data = Vector<uint8_t>(), BitField<BufferCreationBits> p_creation_bits = 0);
RID storage_buffer_create(uint32_t p_size, const Vector<uint8_t> &p_data = Vector<uint8_t>(), BitField<StorageBufferUsage> p_usage = 0, BitField<BufferCreationBits> p_creation_bits = 0);
RID texture_buffer_create(uint32_t p_size_elements, DataFormat p_format, const Vector<uint8_t> &p_data = Vector<uint8_t>());
struct Uniform {
UniformType uniform_type = UNIFORM_TYPE_IMAGE;
uint32_t binding = 0; // Binding index as specified in shader.
// This flag specifies that this is an immutable sampler to be set when creating pipeline layout.
bool immutable_sampler = false;
private:
// In most cases only one ID is provided per binding, so avoid allocating memory unnecessarily for performance.