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rendering_device.cpp
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/**************************************************************************/
/* rendering_device.cpp */
/**************************************************************************/
/* 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. */
/**************************************************************************/
#include "rendering_device.h"
#include "rendering_device.compat.inc"
#include "rendering_device_binds.h"
#include "shader_include_db.h"
#include "core/config/project_settings.h"
#include "core/io/dir_access.h"
#define FORCE_SEPARATE_PRESENT_QUEUE 0
#define PRINT_FRAMEBUFFER_FORMAT 0
#define ERR_RENDER_THREAD_MSG String("This function (") + String(__func__) + String(") can only be called from the render thread. ")
#define ERR_RENDER_THREAD_GUARD() ERR_FAIL_COND_MSG(render_thread_id != Thread::get_caller_id(), ERR_RENDER_THREAD_MSG);
#define ERR_RENDER_THREAD_GUARD_V(m_ret) ERR_FAIL_COND_V_MSG(render_thread_id != Thread::get_caller_id(), (m_ret), ERR_RENDER_THREAD_MSG);
/**************************/
/**** HELPER FUNCTIONS ****/
/**************************/
static String _get_device_vendor_name(const RenderingContextDriver::Device &p_device) {
switch (p_device.vendor) {
case RenderingContextDriver::Vendor::VENDOR_AMD:
return "AMD";
case RenderingContextDriver::Vendor::VENDOR_IMGTEC:
return "ImgTec";
case RenderingContextDriver::Vendor::VENDOR_APPLE:
return "Apple";
case RenderingContextDriver::Vendor::VENDOR_NVIDIA:
return "NVIDIA";
case RenderingContextDriver::Vendor::VENDOR_ARM:
return "ARM";
case RenderingContextDriver::Vendor::VENDOR_MICROSOFT:
return "Microsoft";
case RenderingContextDriver::Vendor::VENDOR_QUALCOMM:
return "Qualcomm";
case RenderingContextDriver::Vendor::VENDOR_INTEL:
return "Intel";
default:
return "Unknown";
}
}
static String _get_device_type_name(const RenderingContextDriver::Device &p_device) {
switch (p_device.type) {
case RenderingContextDriver::DEVICE_TYPE_INTEGRATED_GPU:
return "Integrated";
case RenderingContextDriver::DEVICE_TYPE_DISCRETE_GPU:
return "Discrete";
case RenderingContextDriver::DEVICE_TYPE_VIRTUAL_GPU:
return "Virtual";
case RenderingContextDriver::DEVICE_TYPE_CPU:
return "CPU";
case RenderingContextDriver::DEVICE_TYPE_OTHER:
default:
return "Other";
}
}
static uint32_t _get_device_type_score(const RenderingContextDriver::Device &p_device) {
static const bool prefer_integrated = OS::get_singleton()->get_user_prefers_integrated_gpu();
switch (p_device.type) {
case RenderingContextDriver::DEVICE_TYPE_INTEGRATED_GPU:
return prefer_integrated ? 5 : 4;
case RenderingContextDriver::DEVICE_TYPE_DISCRETE_GPU:
return prefer_integrated ? 4 : 5;
case RenderingContextDriver::DEVICE_TYPE_VIRTUAL_GPU:
return 3;
case RenderingContextDriver::DEVICE_TYPE_CPU:
return 2;
case RenderingContextDriver::DEVICE_TYPE_OTHER:
default:
return 1;
}
}
/**************************/
/**** RENDERING DEVICE ****/
/**************************/
// When true, the command graph will attempt to reorder the rendering commands submitted by the user based on the dependencies detected from
// the commands automatically. This should improve rendering performance in most scenarios at the cost of some extra CPU overhead.
//
// This behavior can be disabled if it's suspected that the graph is not detecting dependencies correctly and more control over the order of
// the commands is desired (e.g. debugging).
#define RENDER_GRAPH_REORDER 1
// Synchronization barriers are issued between the graph's levels only with the necessary amount of detail to achieve the correct result. If
// it's suspected that the graph is not doing this correctly, full barriers can be issued instead that will block all types of operations
// between the synchronization levels. This setting will have a very negative impact on performance when enabled, so it's only intended for
// debugging purposes.
#define RENDER_GRAPH_FULL_BARRIERS 0
// The command graph can automatically issue secondary command buffers and record them on background threads when they reach an arbitrary
// size threshold. This can be very beneficial towards reducing the time the main thread takes to record all the rendering commands. However,
// this setting is not enabled by default as it's been shown to cause some strange issues with certain IHVs that have yet to be understood.
#define SECONDARY_COMMAND_BUFFERS_PER_FRAME 0
RenderingDevice *RenderingDevice::singleton = nullptr;
RenderingDevice *RenderingDevice::get_singleton() {
return singleton;
}
RenderingDevice::ShaderCompileToSPIRVFunction RenderingDevice::compile_to_spirv_function = nullptr;
RenderingDevice::ShaderCacheFunction RenderingDevice::cache_function = nullptr;
RenderingDevice::ShaderSPIRVGetCacheKeyFunction RenderingDevice::get_spirv_cache_key_function = nullptr;
/***************************/
/**** ID INFRASTRUCTURE ****/
/***************************/
void RenderingDevice::_add_dependency(RID p_id, RID p_depends_on) {
_THREAD_SAFE_METHOD_
HashSet<RID> *set = dependency_map.getptr(p_depends_on);
if (set == nullptr) {
set = &dependency_map.insert(p_depends_on, HashSet<RID>())->value;
}
set->insert(p_id);
set = reverse_dependency_map.getptr(p_id);
if (set == nullptr) {
set = &reverse_dependency_map.insert(p_id, HashSet<RID>())->value;
}
set->insert(p_depends_on);
}
void RenderingDevice::_free_dependencies(RID p_id) {
_THREAD_SAFE_METHOD_
// Direct dependencies must be freed.
HashMap<RID, HashSet<RID>>::Iterator E = dependency_map.find(p_id);
if (E) {
while (E->value.size()) {
free(*E->value.begin());
}
dependency_map.remove(E);
}
// Reverse dependencies must be unreferenced.
E = reverse_dependency_map.find(p_id);
if (E) {
for (const RID &F : E->value) {
HashMap<RID, HashSet<RID>>::Iterator G = dependency_map.find(F);
ERR_CONTINUE(!G);
ERR_CONTINUE(!G->value.has(p_id));
G->value.erase(p_id);
}
reverse_dependency_map.remove(E);
}
}
/*******************************/
/**** SHADER INFRASTRUCTURE ****/
/*******************************/
void RenderingDevice::shader_set_compile_to_spirv_function(ShaderCompileToSPIRVFunction p_function) {
compile_to_spirv_function = p_function;
}
void RenderingDevice::shader_set_spirv_cache_function(ShaderCacheFunction p_function) {
cache_function = p_function;
}
void RenderingDevice::shader_set_get_cache_key_function(ShaderSPIRVGetCacheKeyFunction p_function) {
get_spirv_cache_key_function = p_function;
}
Vector<uint8_t> RenderingDevice::shader_compile_spirv_from_source(ShaderStage p_stage, const String &p_source_code, ShaderLanguage p_language, String *r_error, bool p_allow_cache) {
if (p_allow_cache && cache_function) {
Vector<uint8_t> cache = cache_function(p_stage, p_source_code, p_language);
if (cache.size()) {
return cache;
}
}
ERR_FAIL_NULL_V(compile_to_spirv_function, Vector<uint8_t>());
return compile_to_spirv_function(p_stage, ShaderIncludeDB::parse_include_files(p_source_code), p_language, r_error, this);
}
String RenderingDevice::shader_get_spirv_cache_key() const {
if (get_spirv_cache_key_function) {
return get_spirv_cache_key_function(this);
}
return String();
}
RID RenderingDevice::shader_create_from_spirv(const Vector<ShaderStageSPIRVData> &p_spirv, const String &p_shader_name) {
Vector<uint8_t> bytecode = shader_compile_binary_from_spirv(p_spirv, p_shader_name);
ERR_FAIL_COND_V(bytecode.is_empty(), RID());
return shader_create_from_bytecode(bytecode);
}
/***************************/
/**** BUFFER MANAGEMENT ****/
/***************************/
RenderingDevice::Buffer *RenderingDevice::_get_buffer_from_owner(RID p_buffer) {
Buffer *buffer = nullptr;
if (vertex_buffer_owner.owns(p_buffer)) {
buffer = vertex_buffer_owner.get_or_null(p_buffer);
} else if (index_buffer_owner.owns(p_buffer)) {
buffer = index_buffer_owner.get_or_null(p_buffer);
} else if (uniform_buffer_owner.owns(p_buffer)) {
buffer = uniform_buffer_owner.get_or_null(p_buffer);
} else if (texture_buffer_owner.owns(p_buffer)) {
DEV_ASSERT(false && "FIXME: Broken.");
//buffer = texture_buffer_owner.get_or_null(p_buffer)->buffer;
} else if (storage_buffer_owner.owns(p_buffer)) {
buffer = storage_buffer_owner.get_or_null(p_buffer);
}
return buffer;
}
Error RenderingDevice::_buffer_initialize(Buffer *p_buffer, const uint8_t *p_data, size_t p_data_size, uint32_t p_required_align) {
uint32_t transfer_worker_offset;
TransferWorker *transfer_worker = _acquire_transfer_worker(p_data_size, p_required_align, transfer_worker_offset);
p_buffer->transfer_worker_index = transfer_worker->index;
{
MutexLock lock(transfer_worker->operations_mutex);
p_buffer->transfer_worker_operation = ++transfer_worker->operations_counter;
}
// Copy to the worker's staging buffer.
uint8_t *data_ptr = driver->buffer_map(transfer_worker->staging_buffer);
ERR_FAIL_NULL_V(data_ptr, ERR_CANT_CREATE);
memcpy(data_ptr + transfer_worker_offset, p_data, p_data_size);
driver->buffer_unmap(transfer_worker->staging_buffer);
// Copy from the staging buffer to the real buffer.
RDD::BufferCopyRegion region;
region.src_offset = transfer_worker_offset;
region.dst_offset = 0;
region.size = p_data_size;
driver->command_copy_buffer(transfer_worker->command_buffer, transfer_worker->staging_buffer, p_buffer->driver_id, region);
_release_transfer_worker(transfer_worker);
return OK;
}
Error RenderingDevice::_insert_staging_block(StagingBuffers &p_staging_buffers) {
StagingBufferBlock block;
block.driver_id = driver->buffer_create(p_staging_buffers.block_size, p_staging_buffers.usage_bits, RDD::MEMORY_ALLOCATION_TYPE_CPU);
ERR_FAIL_COND_V(!block.driver_id, ERR_CANT_CREATE);
block.frame_used = 0;
block.fill_amount = 0;
p_staging_buffers.blocks.insert(p_staging_buffers.current, block);
return OK;
}
Error RenderingDevice::_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) {
// Determine a block to use.
r_alloc_size = p_amount;
r_required_action = STAGING_REQUIRED_ACTION_NONE;
while (true) {
r_alloc_offset = 0;
// See if we can use current block.
if (p_staging_buffers.blocks[p_staging_buffers.current].frame_used == frames_drawn) {
// We used this block this frame, let's see if there is still room.
uint32_t write_from = p_staging_buffers.blocks[p_staging_buffers.current].fill_amount;
{
uint32_t align_remainder = write_from % p_required_align;
if (align_remainder != 0) {
write_from += p_required_align - align_remainder;
}
}
int32_t available_bytes = int32_t(p_staging_buffers.block_size) - int32_t(write_from);
if ((int32_t)p_amount < available_bytes) {
// All is good, we should be ok, all will fit.
r_alloc_offset = write_from;
} else if (p_can_segment && available_bytes >= (int32_t)p_required_align) {
// Ok all won't fit but at least we can fit a chunkie.
// All is good, update what needs to be written to.
r_alloc_offset = write_from;
r_alloc_size = available_bytes - (available_bytes % p_required_align);
} else {
// Can't fit it into this buffer.
// Will need to try next buffer.
p_staging_buffers.current = (p_staging_buffers.current + 1) % p_staging_buffers.blocks.size();
// Before doing anything, though, let's check that we didn't manage to fill all blocks.
// Possible in a single frame.
if (p_staging_buffers.blocks[p_staging_buffers.current].frame_used == frames_drawn) {
// Guess we did.. ok, let's see if we can insert a new block.
if ((uint64_t)p_staging_buffers.blocks.size() * p_staging_buffers.block_size < p_staging_buffers.max_size) {
// We can, so we are safe.
Error err = _insert_staging_block(p_staging_buffers);
if (err) {
return err;
}
// Claim for this frame.
p_staging_buffers.blocks.write[p_staging_buffers.current].frame_used = frames_drawn;
} else {
// Ok, worst case scenario, all the staging buffers belong to this frame
// and this frame is not even done.
// If this is the main thread, it means the user is likely loading a lot of resources at once,.
// Otherwise, the thread should just be blocked until the next frame (currently unimplemented).
r_required_action = STAGING_REQUIRED_ACTION_FLUSH_AND_STALL_ALL;
}
} else {
// Not from current frame, so continue and try again.
continue;
}
}
} else if (p_staging_buffers.blocks[p_staging_buffers.current].frame_used <= frames_drawn - frames.size()) {
// This is an old block, which was already processed, let's reuse.
p_staging_buffers.blocks.write[p_staging_buffers.current].frame_used = frames_drawn;
p_staging_buffers.blocks.write[p_staging_buffers.current].fill_amount = 0;
} else {
// This block may still be in use, let's not touch it unless we have to, so.. can we create a new one?
if ((uint64_t)p_staging_buffers.blocks.size() * p_staging_buffers.block_size < p_staging_buffers.max_size) {
// We are still allowed to create a new block, so let's do that and insert it for current pos.
Error err = _insert_staging_block(p_staging_buffers);
if (err) {
return err;
}
// Claim for this frame.
p_staging_buffers.blocks.write[p_staging_buffers.current].frame_used = frames_drawn;
} else {
// Oops, we are out of room and we can't create more.
// Let's flush older frames.
// The logic here is that if a game is loading a lot of data from the main thread, it will need to be stalled anyway.
// If loading from a separate thread, we can block that thread until next frame when more room is made (not currently implemented, though).
r_required_action = STAGING_REQUIRED_ACTION_STALL_PREVIOUS;
}
}
// All was good, break.
break;
}
p_staging_buffers.used = true;
return OK;
}
void RenderingDevice::_staging_buffer_execute_required_action(StagingBuffers &p_staging_buffers, StagingRequiredAction p_required_action) {
switch (p_required_action) {
case STAGING_REQUIRED_ACTION_NONE: {
// Do nothing.
} break;
case STAGING_REQUIRED_ACTION_FLUSH_AND_STALL_ALL: {
_flush_and_stall_for_all_frames();
// Clear the whole staging buffer.
for (int i = 0; i < p_staging_buffers.blocks.size(); i++) {
p_staging_buffers.blocks.write[i].frame_used = 0;
p_staging_buffers.blocks.write[i].fill_amount = 0;
}
// Claim for current frame.
p_staging_buffers.blocks.write[p_staging_buffers.current].frame_used = frames_drawn;
} break;
case STAGING_REQUIRED_ACTION_STALL_PREVIOUS: {
_stall_for_previous_frames();
for (int i = 0; i < p_staging_buffers.blocks.size(); i++) {
// Clear all blocks but the ones from this frame.
int block_idx = (i + p_staging_buffers.current) % p_staging_buffers.blocks.size();
if (p_staging_buffers.blocks[block_idx].frame_used == frames_drawn) {
break; // Ok, we reached something from this frame, abort.
}
p_staging_buffers.blocks.write[block_idx].frame_used = 0;
p_staging_buffers.blocks.write[block_idx].fill_amount = 0;
}
// Claim for current frame.
p_staging_buffers.blocks.write[p_staging_buffers.current].frame_used = frames_drawn;
} break;
default: {
DEV_ASSERT(false && "Unknown required action.");
} break;
}
}
Error RenderingDevice::buffer_copy(RID p_src_buffer, RID p_dst_buffer, uint32_t p_src_offset, uint32_t p_dst_offset, uint32_t p_size) {
ERR_RENDER_THREAD_GUARD_V(ERR_UNAVAILABLE);
ERR_FAIL_COND_V_MSG(draw_list.active, ERR_INVALID_PARAMETER,
"Copying buffers is forbidden during creation of a draw list");
ERR_FAIL_COND_V_MSG(compute_list.active, ERR_INVALID_PARAMETER,
"Copying buffers is forbidden during creation of a compute list");
Buffer *src_buffer = _get_buffer_from_owner(p_src_buffer);
if (!src_buffer) {
ERR_FAIL_V_MSG(ERR_INVALID_PARAMETER, "Source buffer argument is not a valid buffer of any type.");
}
Buffer *dst_buffer = _get_buffer_from_owner(p_dst_buffer);
if (!dst_buffer) {
ERR_FAIL_V_MSG(ERR_INVALID_PARAMETER, "Destination buffer argument is not a valid buffer of any type.");
}
// Validate the copy's dimensions for both buffers.
ERR_FAIL_COND_V_MSG((p_size + p_src_offset) > src_buffer->size, ERR_INVALID_PARAMETER, "Size is larger than the source buffer.");
ERR_FAIL_COND_V_MSG((p_size + p_dst_offset) > dst_buffer->size, ERR_INVALID_PARAMETER, "Size is larger than the destination buffer.");
_check_transfer_worker_buffer(src_buffer);
_check_transfer_worker_buffer(dst_buffer);
// Perform the copy.
RDD::BufferCopyRegion region;
region.src_offset = p_src_offset;
region.dst_offset = p_dst_offset;
region.size = p_size;
if (_buffer_make_mutable(dst_buffer, p_dst_buffer)) {
// The destination buffer must be mutable to be used as a copy destination.
draw_graph.add_synchronization();
}
draw_graph.add_buffer_copy(src_buffer->driver_id, src_buffer->draw_tracker, dst_buffer->driver_id, dst_buffer->draw_tracker, region);
return OK;
}
Error RenderingDevice::buffer_update(RID p_buffer, uint32_t p_offset, uint32_t p_size, const void *p_data) {
ERR_RENDER_THREAD_GUARD_V(ERR_UNAVAILABLE);
copy_bytes_count += p_size;
ERR_FAIL_COND_V_MSG(draw_list.active, ERR_INVALID_PARAMETER,
"Updating buffers is forbidden during creation of a draw list");
ERR_FAIL_COND_V_MSG(compute_list.active, ERR_INVALID_PARAMETER,
"Updating buffers is forbidden during creation of a compute list");
Buffer *buffer = _get_buffer_from_owner(p_buffer);
ERR_FAIL_NULL_V_MSG(buffer, ERR_INVALID_PARAMETER, "Buffer argument is not a valid buffer of any type.");
ERR_FAIL_COND_V_MSG(p_offset + p_size > buffer->size, ERR_INVALID_PARAMETER, "Attempted to write buffer (" + itos((p_offset + p_size) - buffer->size) + " bytes) past the end.");
_check_transfer_worker_buffer(buffer);
// Submitting may get chunked for various reasons, so convert this to a task.
size_t to_submit = p_size;
size_t submit_from = 0;
thread_local LocalVector<RDG::RecordedBufferCopy> command_buffer_copies_vector;
command_buffer_copies_vector.clear();
const uint8_t *src_data = reinterpret_cast<const uint8_t *>(p_data);
const uint32_t required_align = 32;
while (to_submit > 0) {
uint32_t block_write_offset;
uint32_t block_write_amount;
StagingRequiredAction required_action;
Error err = _staging_buffer_allocate(upload_staging_buffers, MIN(to_submit, upload_staging_buffers.block_size), required_align, block_write_offset, block_write_amount, required_action);
if (err) {
return err;
}
if (!command_buffer_copies_vector.is_empty() && required_action == STAGING_REQUIRED_ACTION_FLUSH_AND_STALL_ALL) {
if (_buffer_make_mutable(buffer, p_buffer)) {
// The buffer must be mutable to be used as a copy destination.
draw_graph.add_synchronization();
}
draw_graph.add_buffer_update(buffer->driver_id, buffer->draw_tracker, command_buffer_copies_vector);
command_buffer_copies_vector.clear();
}
_staging_buffer_execute_required_action(upload_staging_buffers, required_action);
// Map staging buffer (It's CPU and coherent).
uint8_t *data_ptr = driver->buffer_map(upload_staging_buffers.blocks[upload_staging_buffers.current].driver_id);
ERR_FAIL_NULL_V(data_ptr, ERR_CANT_CREATE);
// Copy to staging buffer.
memcpy(data_ptr + block_write_offset, src_data + submit_from, block_write_amount);
// Unmap.
driver->buffer_unmap(upload_staging_buffers.blocks[upload_staging_buffers.current].driver_id);
// Insert a command to copy this.
RDD::BufferCopyRegion region;
region.src_offset = block_write_offset;
region.dst_offset = submit_from + p_offset;
region.size = block_write_amount;
RDG::RecordedBufferCopy buffer_copy;
buffer_copy.source = upload_staging_buffers.blocks[upload_staging_buffers.current].driver_id;
buffer_copy.region = region;
command_buffer_copies_vector.push_back(buffer_copy);
upload_staging_buffers.blocks.write[upload_staging_buffers.current].fill_amount = block_write_offset + block_write_amount;
to_submit -= block_write_amount;
submit_from += block_write_amount;
}
if (!command_buffer_copies_vector.is_empty()) {
if (_buffer_make_mutable(buffer, p_buffer)) {
// The buffer must be mutable to be used as a copy destination.
draw_graph.add_synchronization();
}
draw_graph.add_buffer_update(buffer->driver_id, buffer->draw_tracker, command_buffer_copies_vector);
}
gpu_copy_count++;
return OK;
}
Error RenderingDevice::driver_callback_add(RDD::DriverCallback p_callback, void *p_userdata, VectorView<CallbackResource> p_resources) {
ERR_RENDER_THREAD_GUARD_V(ERR_UNAVAILABLE);
ERR_FAIL_COND_V_MSG(draw_list.active, ERR_INVALID_PARAMETER,
"Driver callback is forbidden during creation of a draw list");
ERR_FAIL_COND_V_MSG(compute_list.active, ERR_INVALID_PARAMETER,
"Driver callback is forbidden during creation of a compute list");
thread_local LocalVector<RDG::ResourceTracker *> trackers;
thread_local LocalVector<RDG::ResourceUsage> usages;
uint32_t resource_count = p_resources.size();
trackers.resize(resource_count);
usages.resize(resource_count);
if (resource_count > 0) {
for (uint32_t i = 0; i < p_resources.size(); i++) {
const CallbackResource &cr = p_resources[i];
switch (cr.type) {
case CALLBACK_RESOURCE_TYPE_BUFFER: {
Buffer *buffer = _get_buffer_from_owner(cr.rid);
if (!buffer) {
ERR_FAIL_V_MSG(ERR_INVALID_PARAMETER, vformat("Argument %d is not a valid buffer of any type.", i));
}
if (_buffer_make_mutable(buffer, cr.rid)) {
draw_graph.add_synchronization();
}
trackers[i] = buffer->draw_tracker;
usages[i] = (RDG::ResourceUsage)cr.usage;
} break;
case CALLBACK_RESOURCE_TYPE_TEXTURE: {
Texture *texture = texture_owner.get_or_null(cr.rid);
if (!texture) {
ERR_FAIL_V_MSG(ERR_INVALID_PARAMETER, vformat("Argument %d is not a valid texture.", i));
}
if (_texture_make_mutable(texture, cr.rid)) {
draw_graph.add_synchronization();
}
trackers[i] = texture->draw_tracker;
usages[i] = (RDG::ResourceUsage)cr.usage;
} break;
default: {
CRASH_NOW_MSG("Invalid callback resource type.");
} break;
}
}
}
draw_graph.add_driver_callback(p_callback, p_userdata, trackers, usages);
return OK;
}
String RenderingDevice::get_perf_report() const {
String perf_report_text;
perf_report_text += " gpu:" + String::num_int64(prev_gpu_copy_count);
perf_report_text += " bytes:" + String::num_int64(prev_copy_bytes_count);
perf_report_text += " lazily alloc:" + String::num_int64(driver->get_lazily_memory_used());
return perf_report_text;
}
void RenderingDevice::update_perf_report() {
prev_gpu_copy_count = gpu_copy_count;
prev_copy_bytes_count = copy_bytes_count;
gpu_copy_count = 0;
copy_bytes_count = 0;
}
Error RenderingDevice::buffer_clear(RID p_buffer, uint32_t p_offset, uint32_t p_size) {
ERR_RENDER_THREAD_GUARD_V(ERR_UNAVAILABLE);
ERR_FAIL_COND_V_MSG((p_size % 4) != 0, ERR_INVALID_PARAMETER,
"Size must be a multiple of four");
ERR_FAIL_COND_V_MSG(draw_list.active, ERR_INVALID_PARAMETER,
"Updating buffers in is forbidden during creation of a draw list");
ERR_FAIL_COND_V_MSG(compute_list.active, ERR_INVALID_PARAMETER,
"Updating buffers is forbidden during creation of a compute list");
Buffer *buffer = _get_buffer_from_owner(p_buffer);
if (!buffer) {
ERR_FAIL_V_MSG(ERR_INVALID_PARAMETER, "Buffer argument is not a valid buffer of any type.");
}
ERR_FAIL_COND_V_MSG(p_offset + p_size > buffer->size, ERR_INVALID_PARAMETER,
"Attempted to write buffer (" + itos((p_offset + p_size) - buffer->size) + " bytes) past the end.");
_check_transfer_worker_buffer(buffer);
if (_buffer_make_mutable(buffer, p_buffer)) {
// The destination buffer must be mutable to be used as a clear destination.
draw_graph.add_synchronization();
}
draw_graph.add_buffer_clear(buffer->driver_id, buffer->draw_tracker, p_offset, p_size);
return OK;
}
Vector<uint8_t> RenderingDevice::buffer_get_data(RID p_buffer, uint32_t p_offset, uint32_t p_size) {
ERR_RENDER_THREAD_GUARD_V(Vector<uint8_t>());
Buffer *buffer = _get_buffer_from_owner(p_buffer);
if (!buffer) {
ERR_FAIL_V_MSG(Vector<uint8_t>(), "Buffer is either invalid or this type of buffer can't be retrieved.");
}
// Size of buffer to retrieve.
if (!p_size) {
p_size = buffer->size;
} else {
ERR_FAIL_COND_V_MSG(p_size + p_offset > buffer->size, Vector<uint8_t>(),
"Size is larger than the buffer.");
}
_check_transfer_worker_buffer(buffer);
RDD::BufferID tmp_buffer = driver->buffer_create(buffer->size, RDD::BUFFER_USAGE_TRANSFER_TO_BIT, RDD::MEMORY_ALLOCATION_TYPE_CPU);
ERR_FAIL_COND_V(!tmp_buffer, Vector<uint8_t>());
RDD::BufferCopyRegion region;
region.src_offset = p_offset;
region.size = p_size;
draw_graph.add_buffer_get_data(buffer->driver_id, buffer->draw_tracker, tmp_buffer, region);
// Flush everything so memory can be safely mapped.
_flush_and_stall_for_all_frames();
uint8_t *buffer_mem = driver->buffer_map(tmp_buffer);
ERR_FAIL_NULL_V(buffer_mem, Vector<uint8_t>());
Vector<uint8_t> buffer_data;
{
buffer_data.resize(p_size);
uint8_t *w = buffer_data.ptrw();
memcpy(w, buffer_mem, p_size);
}
driver->buffer_unmap(tmp_buffer);
driver->buffer_free(tmp_buffer);
return buffer_data;
}
Error RenderingDevice::buffer_get_data_async(RID p_buffer, const Callable &p_callback, uint32_t p_offset, uint32_t p_size) {
ERR_RENDER_THREAD_GUARD_V(ERR_UNAVAILABLE);
Buffer *buffer = _get_buffer_from_owner(p_buffer);
if (buffer == nullptr) {
ERR_FAIL_V_MSG(ERR_INVALID_PARAMETER, "Buffer is either invalid or this type of buffer can't be retrieved.");
}
if (p_size == 0) {
p_size = buffer->size;
}
ERR_FAIL_COND_V_MSG(p_size + p_offset > buffer->size, ERR_INVALID_PARAMETER, "Size is larger than the buffer.");
ERR_FAIL_COND_V_MSG(!p_callback.is_valid(), ERR_INVALID_PARAMETER, "Callback must be valid.");
_check_transfer_worker_buffer(buffer);
BufferGetDataRequest get_data_request;
get_data_request.callback = p_callback;
get_data_request.frame_local_index = frames[frame].download_buffer_copy_regions.size();
get_data_request.size = p_size;
const uint32_t required_align = 32;
uint32_t block_write_offset;
uint32_t block_write_amount;
StagingRequiredAction required_action;
uint32_t to_submit = p_size;
uint32_t submit_from = 0;
while (to_submit > 0) {
Error err = _staging_buffer_allocate(download_staging_buffers, MIN(to_submit, download_staging_buffers.block_size), required_align, block_write_offset, block_write_amount, required_action);
if (err) {
return err;
}
const bool flush_frames = (get_data_request.frame_local_count > 0) && required_action == STAGING_REQUIRED_ACTION_FLUSH_AND_STALL_ALL;
if (flush_frames) {
if (_buffer_make_mutable(buffer, p_buffer)) {
// The buffer must be mutable to be used as a copy source.
draw_graph.add_synchronization();
}
for (uint32_t i = 0; i < get_data_request.frame_local_count; i++) {
uint32_t local_index = get_data_request.frame_local_index + i;
draw_graph.add_buffer_get_data(buffer->driver_id, buffer->draw_tracker, frames[frame].download_buffer_staging_buffers[local_index], frames[frame].download_buffer_copy_regions[local_index]);
}
}
_staging_buffer_execute_required_action(download_staging_buffers, required_action);
if (flush_frames) {
get_data_request.frame_local_count = 0;
get_data_request.frame_local_index = frames[frame].download_buffer_copy_regions.size();
}
RDD::BufferCopyRegion region;
region.src_offset = submit_from + p_offset;
region.dst_offset = block_write_offset;
region.size = block_write_amount;
frames[frame].download_buffer_staging_buffers.push_back(download_staging_buffers.blocks[download_staging_buffers.current].driver_id);
frames[frame].download_buffer_copy_regions.push_back(region);
get_data_request.frame_local_count++;
download_staging_buffers.blocks.write[download_staging_buffers.current].fill_amount = block_write_offset + block_write_amount;
to_submit -= block_write_amount;
submit_from += block_write_amount;
}
if (get_data_request.frame_local_count > 0) {
if (_buffer_make_mutable(buffer, p_buffer)) {
// The buffer must be mutable to be used as a copy source.
draw_graph.add_synchronization();
}
for (uint32_t i = 0; i < get_data_request.frame_local_count; i++) {
uint32_t local_index = get_data_request.frame_local_index + i;
draw_graph.add_buffer_get_data(buffer->driver_id, buffer->draw_tracker, frames[frame].download_buffer_staging_buffers[local_index], frames[frame].download_buffer_copy_regions[local_index]);
}
frames[frame].download_buffer_get_data_requests.push_back(get_data_request);
}
return OK;
}
uint64_t RenderingDevice::buffer_get_device_address(RID p_buffer) {
ERR_RENDER_THREAD_GUARD_V(0);
Buffer *buffer = _get_buffer_from_owner(p_buffer);
ERR_FAIL_NULL_V_MSG(buffer, 0, "Buffer argument is not a valid buffer of any type.");
ERR_FAIL_COND_V_MSG(!buffer->usage.has_flag(RDD::BUFFER_USAGE_DEVICE_ADDRESS_BIT), 0, "Buffer was not created with device address flag.");
return driver->buffer_get_device_address(buffer->driver_id);
}
RID RenderingDevice::storage_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data, BitField<StorageBufferUsage> p_usage, BitField<BufferCreationBits> p_creation_bits) {
ERR_FAIL_COND_V(p_data.size() && (uint32_t)p_data.size() != p_size_bytes, RID());
Buffer buffer;
buffer.size = p_size_bytes;
buffer.usage = (RDD::BUFFER_USAGE_TRANSFER_FROM_BIT | RDD::BUFFER_USAGE_TRANSFER_TO_BIT | RDD::BUFFER_USAGE_STORAGE_BIT);
if (p_usage.has_flag(STORAGE_BUFFER_USAGE_DISPATCH_INDIRECT)) {
buffer.usage.set_flag(RDD::BUFFER_USAGE_INDIRECT_BIT);
}
if (p_creation_bits.has_flag(BUFFER_CREATION_DEVICE_ADDRESS_BIT)) {
#ifdef DEBUG_ENABLED
ERR_FAIL_COND_V_MSG(!has_feature(SUPPORTS_BUFFER_DEVICE_ADDRESS), RID(),
"The GPU doesn't support buffer address flag.");
#endif
buffer.usage.set_flag(RDD::BUFFER_USAGE_DEVICE_ADDRESS_BIT);
}
buffer.driver_id = driver->buffer_create(buffer.size, buffer.usage, RDD::MEMORY_ALLOCATION_TYPE_GPU);
ERR_FAIL_COND_V(!buffer.driver_id, RID());
// Storage buffers are assumed to be mutable.
buffer.draw_tracker = RDG::resource_tracker_create();
buffer.draw_tracker->buffer_driver_id = buffer.driver_id;
if (p_data.size()) {
_buffer_initialize(&buffer, p_data.ptr(), p_data.size());
}
_THREAD_SAFE_LOCK_
buffer_memory += buffer.size;
_THREAD_SAFE_UNLOCK_
RID id = storage_buffer_owner.make_rid(buffer);
#ifdef DEV_ENABLED
set_resource_name(id, "RID:" + itos(id.get_id()));
#endif
return id;
}
RID RenderingDevice::texture_buffer_create(uint32_t p_size_elements, DataFormat p_format, const Vector<uint8_t> &p_data) {
uint32_t element_size = get_format_vertex_size(p_format);
ERR_FAIL_COND_V_MSG(element_size == 0, RID(), "Format requested is not supported for texture buffers");
uint64_t size_bytes = uint64_t(element_size) * p_size_elements;
ERR_FAIL_COND_V(p_data.size() && (uint32_t)p_data.size() != size_bytes, RID());
Buffer texture_buffer;
texture_buffer.size = size_bytes;
BitField<RDD::BufferUsageBits> usage = (RDD::BUFFER_USAGE_TRANSFER_FROM_BIT | RDD::BUFFER_USAGE_TRANSFER_TO_BIT | RDD::BUFFER_USAGE_TEXEL_BIT);
texture_buffer.driver_id = driver->buffer_create(size_bytes, usage, RDD::MEMORY_ALLOCATION_TYPE_GPU);
ERR_FAIL_COND_V(!texture_buffer.driver_id, RID());
// Texture buffers are assumed to be immutable unless they don't have initial data.
if (p_data.is_empty()) {
texture_buffer.draw_tracker = RDG::resource_tracker_create();
texture_buffer.draw_tracker->buffer_driver_id = texture_buffer.driver_id;
}
bool ok = driver->buffer_set_texel_format(texture_buffer.driver_id, p_format);
if (!ok) {
driver->buffer_free(texture_buffer.driver_id);
ERR_FAIL_V(RID());
}
if (p_data.size()) {
_buffer_initialize(&texture_buffer, p_data.ptr(), p_data.size());
}
_THREAD_SAFE_LOCK_
buffer_memory += size_bytes;
_THREAD_SAFE_UNLOCK_
RID id = texture_buffer_owner.make_rid(texture_buffer);
#ifdef DEV_ENABLED
set_resource_name(id, "RID:" + itos(id.get_id()));
#endif
return id;
}
/*****************/
/**** TEXTURE ****/
/*****************/
RID RenderingDevice::texture_create(const TextureFormat &p_format, const TextureView &p_view, const Vector<Vector<uint8_t>> &p_data) {
// Some adjustments will happen.
TextureFormat format = p_format;
if (format.shareable_formats.size()) {
ERR_FAIL_COND_V_MSG(!format.shareable_formats.has(format.format), RID(),
"If supplied a list of shareable formats, the current format must be present in the list");
ERR_FAIL_COND_V_MSG(p_view.format_override != DATA_FORMAT_MAX && !format.shareable_formats.has(p_view.format_override), RID(),
"If supplied a list of shareable formats, the current view format override must be present in the list");
}
ERR_FAIL_INDEX_V(format.texture_type, RDD::TEXTURE_TYPE_MAX, RID());
ERR_FAIL_COND_V_MSG(format.width < 1, RID(), "Width must be equal or greater than 1 for all textures");
if (format.texture_type != TEXTURE_TYPE_1D && format.texture_type != TEXTURE_TYPE_1D_ARRAY) {
ERR_FAIL_COND_V_MSG(format.height < 1, RID(), "Height must be equal or greater than 1 for 2D and 3D textures");
}
if (format.texture_type == TEXTURE_TYPE_3D) {
ERR_FAIL_COND_V_MSG(format.depth < 1, RID(), "Depth must be equal or greater than 1 for 3D textures");
}
ERR_FAIL_COND_V(format.mipmaps < 1, RID());
if (format.texture_type == TEXTURE_TYPE_1D_ARRAY || format.texture_type == TEXTURE_TYPE_2D_ARRAY || format.texture_type == TEXTURE_TYPE_CUBE_ARRAY || format.texture_type == TEXTURE_TYPE_CUBE) {
ERR_FAIL_COND_V_MSG(format.array_layers < 1, RID(),
"Number of layers must be equal or greater than 1 for arrays and cubemaps.");
ERR_FAIL_COND_V_MSG((format.texture_type == TEXTURE_TYPE_CUBE_ARRAY || format.texture_type == TEXTURE_TYPE_CUBE) && (format.array_layers % 6) != 0, RID(),
"Cubemap and cubemap array textures must provide a layer number that is multiple of 6");
ERR_FAIL_COND_V_MSG(((format.texture_type == TEXTURE_TYPE_CUBE_ARRAY || format.texture_type == TEXTURE_TYPE_CUBE)) && (format.width != format.height), RID(),
"Cubemap and cubemap array textures must have equal width and height.");
ERR_FAIL_COND_V_MSG(format.array_layers > driver->limit_get(LIMIT_MAX_TEXTURE_ARRAY_LAYERS), RID(), "Number of layers exceeds device maximum.");
} else {
format.array_layers = 1;
}
ERR_FAIL_INDEX_V(format.samples, TEXTURE_SAMPLES_MAX, RID());
ERR_FAIL_COND_V_MSG(format.usage_bits == 0, RID(), "No usage bits specified (at least one is needed)");
format.height = format.texture_type != TEXTURE_TYPE_1D && format.texture_type != TEXTURE_TYPE_1D_ARRAY ? format.height : 1;
format.depth = format.texture_type == TEXTURE_TYPE_3D ? format.depth : 1;
uint64_t size_max = 0;
switch (format.texture_type) {
case TEXTURE_TYPE_1D:
case TEXTURE_TYPE_1D_ARRAY:
size_max = driver->limit_get(LIMIT_MAX_TEXTURE_SIZE_1D);
break;
case TEXTURE_TYPE_2D:
case TEXTURE_TYPE_2D_ARRAY:
size_max = driver->limit_get(LIMIT_MAX_TEXTURE_SIZE_2D);
break;
case TEXTURE_TYPE_CUBE:
case TEXTURE_TYPE_CUBE_ARRAY:
size_max = driver->limit_get(LIMIT_MAX_TEXTURE_SIZE_CUBE);
break;
case TEXTURE_TYPE_3D:
size_max = driver->limit_get(LIMIT_MAX_TEXTURE_SIZE_3D);
break;
case TEXTURE_TYPE_MAX:
break;
}
ERR_FAIL_COND_V_MSG(format.width > size_max || format.height > size_max || format.depth > size_max, RID(), "Texture dimensions exceed device maximum.");
uint32_t required_mipmaps = get_image_required_mipmaps(format.width, format.height, format.depth);
ERR_FAIL_COND_V_MSG(required_mipmaps < format.mipmaps, RID(),
"Too many mipmaps requested for texture format and dimensions (" + itos(format.mipmaps) + "), maximum allowed: (" + itos(required_mipmaps) + ").");
Vector<Vector<uint8_t>> data = p_data;
bool immediate_flush = false;
// If this is a VRS texture, we make sure that it is created with valid initial data. This prevents a crash on Qualcomm Snapdragon XR2 Gen 1
// (used in Quest 2, Quest Pro, Pico 4, HTC Vive XR Elite and others) where the driver will read the texture before we've had time to finish updating it.
if (data.is_empty() && (p_format.usage_bits & TEXTURE_USAGE_VRS_ATTACHMENT_BIT)) {
immediate_flush = true;
for (uint32_t i = 0; i < format.array_layers; i++) {
uint32_t required_size = get_image_format_required_size(format.format, format.width, format.height, format.depth, format.mipmaps);
Vector<uint8_t> layer;
layer.resize(required_size);
layer.fill(255);
data.push_back(layer);
}
}
uint32_t forced_usage_bits = _texture_vrs_method_to_usage_bits();
if (data.size()) {
ERR_FAIL_COND_V_MSG(data.size() != (int)format.array_layers, RID(),
"Default supplied data for image format is of invalid length (" + itos(data.size()) + "), should be (" + itos(format.array_layers) + ").");
for (uint32_t i = 0; i < format.array_layers; i++) {
uint32_t required_size = get_image_format_required_size(format.format, format.width, format.height, format.depth, format.mipmaps);
ERR_FAIL_COND_V_MSG((uint32_t)data[i].size() != required_size, RID(),
"Data for slice index " + itos(i) + " (mapped to layer " + itos(i) + ") differs in size (supplied: " + itos(data[i].size()) + ") than what is required by the format (" + itos(required_size) + ").");
}
ERR_FAIL_COND_V_MSG(format.usage_bits & TEXTURE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT, RID(),
"Textures created as depth attachments can't be initialized with data directly. Use RenderingDevice::texture_update() instead.");
if (!(format.usage_bits & TEXTURE_USAGE_CAN_UPDATE_BIT)) {
forced_usage_bits |= TEXTURE_USAGE_CAN_UPDATE_BIT;
}
}
{
// Validate that this image is supported for the intended use.
bool cpu_readable = (format.usage_bits & RDD::TEXTURE_USAGE_CPU_READ_BIT);
BitField<RDD::TextureUsageBits> supported_usage = driver->texture_get_usages_supported_by_format(format.format, cpu_readable);
String format_text = "'" + String(FORMAT_NAMES[format.format]) + "'";
if ((format.usage_bits & TEXTURE_USAGE_SAMPLING_BIT) && !supported_usage.has_flag(TEXTURE_USAGE_SAMPLING_BIT)) {
ERR_FAIL_V_MSG(RID(), "Format " + format_text + " does not support usage as sampling texture.");
}