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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 "core/config/project_settings.h"
#include "core/io/dir_access.h"
// TODO: Thread safety
// - Roll back thread safe attribute for RID_Owner members after the read-only/atomic update scheme is implemented.
#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_AMD:
return "AMD";
case RenderingContextDriver::VENDOR_IMGTEC:
return "ImgTec";
case RenderingContextDriver::VENDOR_APPLE:
return "Apple";
case RenderingContextDriver::VENDOR_NVIDIA:
return "NVIDIA";
case RenderingContextDriver::VENDOR_ARM:
return "ARM";
case RenderingContextDriver::VENDOR_MICROSOFT:
return "Microsoft";
case RenderingContextDriver::VENDOR_QUALCOMM:
return "Qualcomm";
case RenderingContextDriver::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);
}
}
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, 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() {
StagingBufferBlock block;
block.driver_id = driver->buffer_create(staging_buffer_block_size, RDD::BUFFER_USAGE_TRANSFER_FROM_BIT, RDD::MEMORY_ALLOCATION_TYPE_CPU);
ERR_FAIL_COND_V(!block.driver_id, ERR_CANT_CREATE);
block.frame_used = 0;
block.fill_amount = 0;
staging_buffer_blocks.insert(staging_buffer_current, block);
return OK;
}
Error RenderingDevice::_staging_buffer_allocate(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 (staging_buffer_blocks[staging_buffer_current].frame_used == frames_drawn) {
// We used this block this frame, let's see if there is still room.
uint32_t write_from = staging_buffer_blocks[staging_buffer_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(staging_buffer_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.
staging_buffer_current = (staging_buffer_current + 1) % staging_buffer_blocks.size();
// Before doing anything, though, let's check that we didn't manage to fill all blocks.
// Possible in a single frame.
if (staging_buffer_blocks[staging_buffer_current].frame_used == frames_drawn) {
// Guess we did.. ok, let's see if we can insert a new block.
if ((uint64_t)staging_buffer_blocks.size() * staging_buffer_block_size < staging_buffer_max_size) {
// We can, so we are safe.
Error err = _insert_staging_block();
if (err) {
return err;
}
// Claim for this frame.
staging_buffer_blocks.write[staging_buffer_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 (staging_buffer_blocks[staging_buffer_current].frame_used <= frames_drawn - frames.size()) {
// This is an old block, which was already processed, let's reuse.
staging_buffer_blocks.write[staging_buffer_current].frame_used = frames_drawn;
staging_buffer_blocks.write[staging_buffer_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)staging_buffer_blocks.size() * staging_buffer_block_size < staging_buffer_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();
if (err) {
return err;
}
// Claim for this frame.
staging_buffer_blocks.write[staging_buffer_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;
}
staging_buffer_used = true;
return OK;
}
void RenderingDevice::_staging_buffer_execute_required_action(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 < staging_buffer_blocks.size(); i++) {
staging_buffer_blocks.write[i].frame_used = 0;
staging_buffer_blocks.write[i].fill_amount = 0;
}
// Claim for current frame.
staging_buffer_blocks.write[staging_buffer_current].frame_used = frames_drawn;
} break;
case STAGING_REQUIRED_ACTION_STALL_PREVIOUS: {
_stall_for_previous_frames();
for (int i = 0; i < staging_buffer_blocks.size(); i++) {
// Clear all blocks but the ones from this frame.
int block_idx = (i + staging_buffer_current) % staging_buffer_blocks.size();
if (staging_buffer_blocks[block_idx].frame_used == frames_drawn) {
break; // Ok, we reached something from this frame, abort.
}
staging_buffer_blocks.write[block_idx].frame_used = 0;
staging_buffer_blocks.write[block_idx].fill_amount = 0;
}
// Claim for current frame.
staging_buffer_blocks.write[staging_buffer_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, ERR_INVALID_PARAMETER,
"Copying buffers is forbidden during creation of a draw list");
ERR_FAIL_COND_V_MSG(compute_list, 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, ERR_INVALID_PARAMETER,
"Updating buffers is forbidden during creation of a draw list");
ERR_FAIL_COND_V_MSG(compute_list, 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(MIN(to_submit, staging_buffer_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(required_action);
// Map staging buffer (It's CPU and coherent).
uint8_t *data_ptr = driver->buffer_map(staging_buffer_blocks[staging_buffer_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(staging_buffer_blocks[staging_buffer_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 = staging_buffer_blocks[staging_buffer_current].driver_id;
buffer_copy.region = region;
command_buffer_copies_vector.push_back(buffer_copy);
staging_buffer_blocks.write[staging_buffer_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;
}
String RenderingDevice::get_perf_report() const {
return perf_report_text;
}
void RenderingDevice::update_perf_report() {
perf_report_text = " gpu:" + String::num_int64(gpu_copy_count);
perf_report_text += " bytes:" + String::num_int64(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, ERR_INVALID_PARAMETER,
"Updating buffers in is forbidden during creation of a draw list");
ERR_FAIL_COND_V_MSG(compute_list, 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. Only Index and Vertex buffers allow retrieving.");
}
// 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;
}
RID RenderingDevice::storage_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data, BitField<StorageBufferUsage> p_usage) {
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);
}
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.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) + ").");
uint32_t forced_usage_bits = 0;
if (p_data.size()) {
ERR_FAIL_COND_V_MSG(p_data.size() != (int)format.array_layers, RID(),
"Default supplied data for image format is of invalid length (" + itos(p_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)p_data[i].size() != required_size, RID(),
"Data for slice index " + itos(i) + " (mapped to layer " + itos(i) + ") differs in size (supplied: " + itos(p_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.");
}
if ((format.usage_bits & TEXTURE_USAGE_COLOR_ATTACHMENT_BIT) && !supported_usage.has_flag(TEXTURE_USAGE_COLOR_ATTACHMENT_BIT)) {
ERR_FAIL_V_MSG(RID(), "Format " + format_text + " does not support usage as color attachment.");
}
if ((format.usage_bits & TEXTURE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT) && !supported_usage.has_flag(TEXTURE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT)) {
ERR_FAIL_V_MSG(RID(), "Format " + format_text + " does not support usage as depth-stencil attachment.");
}
if ((format.usage_bits & TEXTURE_USAGE_STORAGE_BIT) && !supported_usage.has_flag(TEXTURE_USAGE_STORAGE_BIT)) {
ERR_FAIL_V_MSG(RID(), "Format " + format_text + " does not support usage as storage image.");
}
if ((format.usage_bits & TEXTURE_USAGE_STORAGE_ATOMIC_BIT) && !supported_usage.has_flag(TEXTURE_USAGE_STORAGE_ATOMIC_BIT)) {
ERR_FAIL_V_MSG(RID(), "Format " + format_text + " does not support usage as atomic storage image.");
}
if ((format.usage_bits & TEXTURE_USAGE_VRS_ATTACHMENT_BIT) && !supported_usage.has_flag(TEXTURE_USAGE_VRS_ATTACHMENT_BIT)) {
ERR_FAIL_V_MSG(RID(), "Format " + format_text + " does not support usage as VRS attachment.");
}
}
// Transfer and validate view info.
RDD::TextureView tv;
if (p_view.format_override == DATA_FORMAT_MAX) {
tv.format = format.format;
} else {
ERR_FAIL_INDEX_V(p_view.format_override, DATA_FORMAT_MAX, RID());
tv.format = p_view.format_override;
}
ERR_FAIL_INDEX_V(p_view.swizzle_r, TEXTURE_SWIZZLE_MAX, RID());
ERR_FAIL_INDEX_V(p_view.swizzle_g, TEXTURE_SWIZZLE_MAX, RID());
ERR_FAIL_INDEX_V(p_view.swizzle_b, TEXTURE_SWIZZLE_MAX, RID());
ERR_FAIL_INDEX_V(p_view.swizzle_a, TEXTURE_SWIZZLE_MAX, RID());
tv.swizzle_r = p_view.swizzle_r;
tv.swizzle_g = p_view.swizzle_g;
tv.swizzle_b = p_view.swizzle_b;
tv.swizzle_a = p_view.swizzle_a;
// Create.
Texture texture;
format.usage_bits |= forced_usage_bits;
texture.driver_id = driver->texture_create(format, tv);
ERR_FAIL_COND_V(!texture.driver_id, RID());
texture.type = format.texture_type;
texture.format = format.format;
texture.width = format.width;
texture.height = format.height;
texture.depth = format.depth;
texture.layers = format.array_layers;
texture.mipmaps = format.mipmaps;
texture.base_mipmap = 0;
texture.base_layer = 0;
texture.is_resolve_buffer = format.is_resolve_buffer;
texture.is_discardable = format.is_discardable;
texture.usage_flags = format.usage_bits & ~forced_usage_bits;
texture.samples = format.samples;
texture.allowed_shared_formats = format.shareable_formats;
texture.has_initial_data = !p_data.is_empty();
if ((format.usage_bits & TEXTURE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT)) {
texture.read_aspect_flags.set_flag(RDD::TEXTURE_ASPECT_DEPTH_BIT);
texture.barrier_aspect_flags.set_flag(RDD::TEXTURE_ASPECT_DEPTH_BIT);
if (format_has_stencil(format.format)) {
texture.barrier_aspect_flags.set_flag(RDD::TEXTURE_ASPECT_STENCIL_BIT);
}
} else {
texture.read_aspect_flags.set_flag(RDD::TEXTURE_ASPECT_COLOR_BIT);
texture.barrier_aspect_flags.set_flag(RDD::TEXTURE_ASPECT_COLOR_BIT);
}
texture.bound = false;
// Textures are only assumed to be immutable if they have initial data and none of the other bits that indicate write usage are enabled.
bool texture_mutable_by_default = texture.usage_flags & (TEXTURE_USAGE_COLOR_ATTACHMENT_BIT | TEXTURE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT | TEXTURE_USAGE_STORAGE_BIT | TEXTURE_USAGE_STORAGE_ATOMIC_BIT | TEXTURE_USAGE_VRS_ATTACHMENT_BIT);
if (p_data.is_empty() || texture_mutable_by_default) {
_texture_make_mutable(&texture, RID());
}
texture_memory += driver->texture_get_allocation_size(texture.driver_id);
RID id = texture_owner.make_rid(texture);
#ifdef DEV_ENABLED
set_resource_name(id, "RID:" + itos(id.get_id()));
#endif
if (p_data.size()) {
for (uint32_t i = 0; i < p_format.array_layers; i++) {
_texture_initialize(id, i, p_data[i]);
}
if (texture.draw_tracker != nullptr) {
// Draw tracker can assume the texture will be in copy destination.
texture.draw_tracker->usage = RDG::RESOURCE_USAGE_COPY_TO;
}
}
return id;
}
RID RenderingDevice::texture_create_shared(const TextureView &p_view, RID p_with_texture) {
Texture *src_texture = texture_owner.get_or_null(p_with_texture);
ERR_FAIL_NULL_V(src_texture, RID());
if (src_texture->owner.is_valid()) { // Ahh this is a share. The RenderingDeviceDriver needs the actual owner.
p_with_texture = src_texture->owner;
src_texture = texture_owner.get_or_null(src_texture->owner);
ERR_FAIL_NULL_V(src_texture, RID()); // This is a bug.
}
// Create view.
Texture texture = *src_texture;
texture.shared_fallback = nullptr;
RDD::TextureView tv;
bool create_shared = true;
bool raw_reintepretation = false;
if (p_view.format_override == DATA_FORMAT_MAX || p_view.format_override == texture.format) {
tv.format = texture.format;
} else {
ERR_FAIL_INDEX_V(p_view.format_override, DATA_FORMAT_MAX, RID());
ERR_FAIL_COND_V_MSG(!texture.allowed_shared_formats.has(p_view.format_override), RID(),
"Format override is not in the list of allowed shareable formats for original texture.");
tv.format = p_view.format_override;
create_shared = driver->texture_can_make_shared_with_format(texture.driver_id, p_view.format_override, raw_reintepretation);
}
tv.swizzle_r = p_view.swizzle_r;
tv.swizzle_g = p_view.swizzle_g;
tv.swizzle_b = p_view.swizzle_b;
tv.swizzle_a = p_view.swizzle_a;
if (create_shared) {
texture.driver_id = driver->texture_create_shared(texture.driver_id, tv);
} else {
// The regular view will use the same format as the main texture.
RDD::TextureView regular_view = tv;
regular_view.format = src_texture->format;
texture.driver_id = driver->texture_create_shared(texture.driver_id, regular_view);
// Create the independent texture for the alias.
RDD::TextureFormat alias_format = texture.texture_format();
alias_format.format = tv.format;
alias_format.usage_bits = TEXTURE_USAGE_SAMPLING_BIT | TEXTURE_USAGE_CAN_COPY_TO_BIT;
_texture_check_shared_fallback(src_texture);
_texture_check_shared_fallback(&texture);
texture.shared_fallback->texture = driver->texture_create(alias_format, tv);
texture.shared_fallback->raw_reinterpretation = raw_reintepretation;
texture_memory += driver->texture_get_allocation_size(texture.shared_fallback->texture);
RDG::ResourceTracker *tracker = RDG::resource_tracker_create();
tracker->texture_driver_id = texture.shared_fallback->texture;
tracker->texture_size = Size2i(texture.width, texture.height);
tracker->texture_subresources = texture.barrier_range();
tracker->texture_usage = alias_format.usage_bits;
tracker->is_discardable = texture.is_discardable;
tracker->reference_count = 1;
texture.shared_fallback->texture_tracker = tracker;
texture.shared_fallback->revision = 0;
if (raw_reintepretation && src_texture->shared_fallback->buffer.id == 0) {
// For shared textures of the same size, we create the buffer on the main texture if it doesn't have it already.
_texture_create_reinterpret_buffer(src_texture);
}
}
ERR_FAIL_COND_V(!texture.driver_id, RID());
texture.slice_trackers.clear();
if (texture.draw_tracker != nullptr) {
texture.draw_tracker->reference_count++;
}
texture.owner = p_with_texture;
RID id = texture_owner.make_rid(texture);
#ifdef DEV_ENABLED
set_resource_name(id, "RID:" + itos(id.get_id()));
#endif
_add_dependency(id, p_with_texture);