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Merge pull request #85939 from adamscott/single-threaded-godot-4

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Add `THREADS_ENABLED` macro in order to compile Godot to run on the main thread
This commit is contained in:
Rémi Verschelde 2024-01-18 09:33:52 +01:00
commit fa81059b9d
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GPG Key ID: C3336907360768E1
33 changed files with 447 additions and 72 deletions
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30
.github/workflows/web_builds.yml vendored
View File

@ -17,7 +17,24 @@ concurrency:
jobs:
web-template:
runs-on: "ubuntu-22.04"
name: Template (target=template_release)
name: ${{ matrix.name }}
strategy:
fail-fast: false
matrix:
include:
- name: Template w/ threads (target=template_release, threads=yes)
cache-name: web-template
target: template_release
sconsflags: threads=yes
tests: false
artifact: true
- name: Template w/o threads (target=template_release, threads=no)
cache-name: web-nothreads-template
target: template_release
sconsflags: threads=no
tests: false
artifact: true
steps:
- uses: actions/checkout@v4
@ -34,6 +51,8 @@ jobs:
- name: Setup Godot build cache
uses: ./.github/actions/godot-cache
with:
cache-name: ${{ matrix.cache-name }}
continue-on-error: true
- name: Setup python and scons
@ -42,10 +61,13 @@ jobs:
- name: Compilation
uses: ./.github/actions/godot-build
with:
sconsflags: ${{ env.SCONSFLAGS }}
sconsflags: ${{ env.SCONSFLAGS }} ${{ matrix.sconsflags }}
platform: web
target: template_release
tests: false
target: ${{ matrix.target }}
tests: ${{ matrix.tests }}
- name: Upload artifact
uses: ./.github/actions/upload-artifact
if: ${{ matrix.artifact }}
with:
name: ${{ matrix.cache-name }}

8
SConstruct
View File

@ -183,6 +183,7 @@ opts.Add(BoolVariable("separate_debug_symbols", "Extract debugging symbols to a
opts.Add(EnumVariable("lto", "Link-time optimization (production builds)", "none", ("none", "auto", "thin", "full")))
opts.Add(BoolVariable("production", "Set defaults to build Godot for use in production", False))
opts.Add(BoolVariable("generate_apk", "Generate an APK/AAB after building Android library by calling Gradle", False))
opts.Add(BoolVariable("threads", "Enable threading support", True))
# Components
opts.Add(BoolVariable("deprecated", "Enable compatibility code for deprecated and removed features", True))
@ -832,6 +833,10 @@ if selected_platform in platform_list:
suffix += ".double"
suffix += "." + env["arch"]
if not env["threads"]:
suffix += ".nothreads"
suffix += env.extra_suffix
sys.path.remove(tmppath)
@ -972,6 +977,9 @@ if selected_platform in platform_list:
env.Tool("compilation_db")
env.Alias("compiledb", env.CompilationDatabase())
if env["threads"]:
env.Append(CPPDEFINES=["THREADS_ENABLED"])
Export("env")
# Build subdirs, the build order is dependent on link order.

6
core/object/worker_thread_pool.cpp
View File

@ -47,6 +47,7 @@ WorkerThreadPool *WorkerThreadPool::singleton = nullptr;
thread_local CommandQueueMT *WorkerThreadPool::flushing_cmd_queue = nullptr;
void WorkerThreadPool::_process_task(Task *p_task) {
#ifdef THREADS_ENABLED
int pool_thread_index = thread_ids[Thread::get_caller_id()];
ThreadData &curr_thread = threads[pool_thread_index];
Task *prev_task = nullptr; // In case this is recursively called.
@ -69,6 +70,7 @@ void WorkerThreadPool::_process_task(Task *p_task) {
curr_thread.current_task = p_task;
task_mutex.unlock();
}
#endif
if (p_task->group) {
// Handling a group
@ -143,6 +145,7 @@ void WorkerThreadPool::_process_task(Task *p_task) {
}
}
#ifdef THREADS_ENABLED
{
curr_thread.current_task = prev_task;
if (p_task->low_priority) {
@ -159,6 +162,7 @@ void WorkerThreadPool::_process_task(Task *p_task) {
}
set_current_thread_safe_for_nodes(safe_for_nodes_backup);
#endif
}
void WorkerThreadPool::_thread_function(void *p_user) {
@ -542,6 +546,7 @@ bool WorkerThreadPool::is_group_task_completed(GroupID p_group) const {
}
void WorkerThreadPool::wait_for_group_task_completion(GroupID p_group) {
#ifdef THREADS_ENABLED
task_mutex.lock();
Group **groupp = groups.getptr(p_group);
task_mutex.unlock();
@ -574,6 +579,7 @@ void WorkerThreadPool::wait_for_group_task_completion(GroupID p_group) {
task_mutex.lock(); // This mutex is needed when Physics 2D and/or 3D is selected to run on a separate thread.
groups.erase(p_group);
task_mutex.unlock();
#endif
}
int WorkerThreadPool::get_thread_index() {

14
core/os/condition_variable.h
View File

@ -33,6 +33,8 @@
#include "core/os/mutex.h"
#ifdef THREADS_ENABLED
#ifdef MINGW_ENABLED
#define MINGW_STDTHREAD_REDUNDANCY_WARNING
#include "thirdparty/mingw-std-threads/mingw.condition_variable.h"
@ -66,4 +68,16 @@ public:
}
};
#else // No threads.
class ConditionVariable {
public:
template <class BinaryMutexT>
void wait(const MutexLock<BinaryMutexT> &p_lock) const {}
void notify_one() const {}
void notify_all() const {}
};
#endif // THREADS_ENABLED
#endif // CONDITION_VARIABLE_H

4
core/os/mutex.cpp
View File

@ -40,7 +40,11 @@ void _global_unlock() {
_global_mutex.unlock();
}
#ifdef THREADS_ENABLED
template class MutexImpl<THREADING_NAMESPACE::recursive_mutex>;
template class MutexImpl<THREADING_NAMESPACE::mutex>;
template class MutexLock<MutexImpl<THREADING_NAMESPACE::recursive_mutex>>;
template class MutexLock<MutexImpl<THREADING_NAMESPACE::mutex>>;
#endif

40
core/os/mutex.h
View File

@ -43,6 +43,8 @@
#define THREADING_NAMESPACE std
#endif
#ifdef THREADS_ENABLED
template <class MutexT>
class MutexLock;
@ -125,8 +127,8 @@ class MutexLock {
THREADING_NAMESPACE::unique_lock<typename MutexT::StdMutexType> lock;
public:
_ALWAYS_INLINE_ explicit MutexLock(const MutexT &p_mutex) :
lock(p_mutex.mutex){};
explicit MutexLock(const MutexT &p_mutex) :
lock(p_mutex.mutex) {}
};
// This specialization is needed so manual locking and MutexLock can be used
@ -155,4 +157,38 @@ extern template class MutexImpl<THREADING_NAMESPACE::mutex>;
extern template class MutexLock<MutexImpl<THREADING_NAMESPACE::recursive_mutex>>;
extern template class MutexLock<MutexImpl<THREADING_NAMESPACE::mutex>>;
#else // No threads.
class MutexImpl {
mutable THREADING_NAMESPACE::mutex mutex;
public:
void lock() const {}
void unlock() const {}
bool try_lock() const { return true; }
};
template <int Tag>
class SafeBinaryMutex : public MutexImpl {
static thread_local uint32_t count;
};
template <class MutexT>
class MutexLock {
public:
MutexLock(const MutexT &p_mutex) {}
};
template <int Tag>
class MutexLock<SafeBinaryMutex<Tag>> {
public:
MutexLock(const SafeBinaryMutex<Tag> &p_mutex) {}
~MutexLock() {}
};
using Mutex = MutexImpl;
using BinaryMutex = MutexImpl;
#endif // THREADS_ENABLED
#endif // MUTEX_H

6
core/os/os.cpp
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@ -504,6 +504,12 @@ bool OS::has_feature(const String &p_feature) {
}
#endif
#ifdef THREADS_ENABLED
if (p_feature == "threads") {
return true;
}
#endif
if (_check_internal_feature_support(p_feature)) {
return true;
}

17
core/os/semaphore.h
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@ -31,6 +31,10 @@
#ifndef SEMAPHORE_H
#define SEMAPHORE_H
#include <cstdint>
#ifdef THREADS_ENABLED
#include "core/error/error_list.h"
#include "core/typedefs.h"
#ifdef DEBUG_ENABLED
@ -132,4 +136,17 @@ public:
#endif
};
#else // No threads.
class Semaphore {
public:
void post(uint32_t p_count = 1) const {}
void wait() const {}
bool try_wait() const {
return true;
}
};
#endif // THREADS_ENABLED
#endif // SEMAPHORE_H

9
core/os/thread.cpp
View File

@ -33,19 +33,22 @@
#include "thread.h"
#ifdef THREADS_ENABLED
#include "core/object/script_language.h"
#include "core/templates/safe_refcount.h"
Thread::PlatformFunctions Thread::platform_functions;
SafeNumeric<uint64_t> Thread::id_counter(1); // The first value after .increment() is 2, hence by default the main thread ID should be 1.
thread_local Thread::ID Thread::caller_id = Thread::UNASSIGNED_ID;
#endif
Thread::PlatformFunctions Thread::platform_functions;
void Thread::_set_platform_functions(const PlatformFunctions &p_functions) {
platform_functions = p_functions;
}
#ifdef THREADS_ENABLED
void Thread::callback(ID p_caller_id, const Settings &p_settings, Callback p_callback, void *p_userdata) {
Thread::caller_id = p_caller_id;
if (platform_functions.set_priority) {
@ -107,4 +110,6 @@ Thread::~Thread() {
}
}
#endif // THREADS_ENABLED
#endif // PLATFORM_THREAD_OVERRIDE

64
core/os/thread.h
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@ -53,6 +53,8 @@
class String;
#ifdef THREADS_ENABLED
class Thread {
public:
typedef void (*Callback)(void *p_userdata);
@ -86,6 +88,8 @@ public:
private:
friend class Main;
static PlatformFunctions platform_functions;
ID id = UNASSIGNED_ID;
static SafeNumeric<uint64_t> id_counter;
static thread_local ID caller_id;
@ -93,8 +97,6 @@ private:
static void callback(ID p_caller_id, const Settings &p_settings, Thread::Callback p_callback, void *p_userdata);
static PlatformFunctions platform_functions;
static void make_main_thread() { caller_id = MAIN_ID; }
static void release_main_thread() { caller_id = UNASSIGNED_ID; }
@ -125,6 +127,64 @@ public:
~Thread();
};
#else // No threads.
class Thread {
public:
typedef void (*Callback)(void *p_userdata);
typedef uint64_t ID;
enum : ID {
UNASSIGNED_ID = 0,
MAIN_ID = 1
};
enum Priority {
PRIORITY_LOW,
PRIORITY_NORMAL,
PRIORITY_HIGH
};
struct Settings {
Priority priority;
Settings() { priority = PRIORITY_NORMAL; }
};
struct PlatformFunctions {
Error (*set_name)(const String &) = nullptr;
void (*set_priority)(Thread::Priority) = nullptr;
void (*init)() = nullptr;
void (*wrapper)(Thread::Callback, void *) = nullptr;
void (*term)() = nullptr;
};
private:
friend class Main;
static PlatformFunctions platform_functions;
static void make_main_thread() {}
static void release_main_thread() {}
public:
static void _set_platform_functions(const PlatformFunctions &p_functions);
_FORCE_INLINE_ ID get_id() const { return 0; }
_FORCE_INLINE_ static ID get_caller_id() { return MAIN_ID; }
_FORCE_INLINE_ static ID get_main_id() { return MAIN_ID; }
_FORCE_INLINE_ static bool is_main_thread() { return true; }
static Error set_name(const String &p_name) { return ERR_UNAVAILABLE; }
void start(Thread::Callback p_callback, void *p_user, const Settings &p_settings = Settings()) {}
bool is_started() const { return false; }
void wait_to_finish() {}
};
#endif // THREADS_ENABLED
#endif // THREAD_H
#endif // PLATFORM_THREAD_OVERRIDE

2
drivers/unix/os_unix.cpp
View File

@ -153,7 +153,9 @@ int OS_Unix::unix_initialize_audio(int p_audio_driver) {
}
void OS_Unix::initialize_core() {
#ifdef THREADS_ENABLED
init_thread_posix();
#endif
FileAccess::make_default<FileAccessUnix>(FileAccess::ACCESS_RESOURCES);
FileAccess::make_default<FileAccessUnix>(FileAccess::ACCESS_USERDATA);

8
editor/editor_file_system.cpp
View File

@ -2354,7 +2354,11 @@ void EditorFileSystem::reimport_files(const Vector<String> &p_files) {
reimport_files.sort();
#ifdef THREADS_ENABLED
bool use_multiple_threads = GLOBAL_GET("editor/import/use_multiple_threads");
#else
bool use_multiple_threads = false;
#endif
int from = 0;
for (int i = 0; i < reimport_files.size(); i++) {
@ -2680,6 +2684,10 @@ void EditorFileSystem::remove_import_format_support_query(Ref<EditorFileSystemIm
}
EditorFileSystem::EditorFileSystem() {
#ifdef THREADS_ENABLED
use_threads = true;
#endif
ResourceLoader::import = _resource_import;
reimport_on_missing_imported_files = GLOBAL_GET("editor/import/reimport_missing_imported_files");
singleton = this;

2
editor/editor_file_system.h
View File

@ -165,7 +165,7 @@ class EditorFileSystem : public Node {
EditorFileSystemDirectory::FileInfo *new_file = nullptr;
};
bool use_threads = true;
bool use_threads = false;
Thread thread;
static void _thread_func(void *_userdata);

6
main/main.cpp
View File

@ -1615,6 +1615,8 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
}
// Initialize WorkerThreadPool.
{
#ifdef THREADS_ENABLED
if (editor || project_manager) {
WorkerThreadPool::get_singleton()->init(-1, 0.75);
} else {
@ -1622,6 +1624,10 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
float low_priority_ratio = GLOBAL_GET("threading/worker_pool/low_priority_thread_ratio");
WorkerThreadPool::get_singleton()->init(worker_threads, low_priority_ratio);
}
#else
WorkerThreadPool::get_singleton()->init(0, 0);
#endif
}
#ifdef TOOLS_ENABLED
if (editor) {

8
misc/dist/html/editor.html vendored
View File

@ -23,7 +23,7 @@
<link id="-gd-engine-icon" rel="icon" type="image/png" href="favicon.png">
<link rel="apple-touch-icon" type="image/png" href="favicon.png">
<link rel="manifest" href="manifest.json">
<title>Godot Engine Web Editor (@GODOT_VERSION@)</title>
<title>Godot Engine Web Editor (___GODOT_VERSION___)</title>
<style>
*:focus {
/* More visible outline for better keyboard navigation. */
@ -294,7 +294,7 @@ a:active {
<br >
<img src="logo.svg" alt="Godot Engine logo" width="1024" height="414" style="width: auto; height: auto; max-width: min(85%, 50vh); max-height: 250px">
<br >
@GODOT_VERSION@
___GODOT_VERSION___
<br >
<a href="releases/">Need an old version?</a>
<br >
@ -384,7 +384,9 @@ window.addEventListener('load', () => {
});
}
const missing = Engine.getMissingFeatures();
const missing = Engine.getMissingFeatures({
threads: ___GODOT_THREADS_ENABLED___,
});
if (missing.length) {
// Display error dialog as threading support is required for the editor.
document.getElementById('startButton').disabled = 'disabled';

5
misc/dist/html/full-size.html vendored
View File

@ -136,6 +136,7 @@ body {
<script src="$GODOT_URL"></script>
<script>
const GODOT_CONFIG = $GODOT_CONFIG;
const GODOT_THREADS_ENABLED = $GODOT_THREADS_ENABLED;
const engine = new Engine(GODOT_CONFIG);
(function () {
@ -213,7 +214,9 @@ const engine = new Engine(GODOT_CONFIG);
initializing = false;
}
const missing = Engine.getMissingFeatures();
const missing = Engine.getMissingFeatures({
threads: GODOT_THREADS_ENABLED,
});
if (missing.length !== 0) {
const missingMsg = 'Error\nThe following features required to run Godot projects on the Web are missing:\n';
displayFailureNotice(missingMsg + missing.join('\n'));

10
misc/dist/html/service-worker.js vendored
View File

@ -3,14 +3,14 @@
// that they need an Internet connection to run the project if desired.
// Incrementing CACHE_VERSION will kick off the install event and force
// previously cached resources to be updated from the network.
const CACHE_VERSION = "@GODOT_VERSION@";
const CACHE_PREFIX = "@GODOT_NAME@-sw-cache-";
const CACHE_VERSION = "___GODOT_VERSION___";
const CACHE_PREFIX = "___GODOT_NAME___-sw-cache-";
const CACHE_NAME = CACHE_PREFIX + CACHE_VERSION;
const OFFLINE_URL = "@GODOT_OFFLINE_PAGE@";
const OFFLINE_URL = "___GODOT_OFFLINE_PAGE___";
// Files that will be cached on load.
const CACHED_FILES = @GODOT_CACHE@;
const CACHED_FILES = ___GODOT_CACHE___;
// Files that we might not want the user to preload, and will only be cached on first load.
const CACHABLE_FILES = @GODOT_OPT_CACHE@;
const CACHABLE_FILES = ___GODOT_OPT_CACHE___;
const FULL_CACHE = CACHED_FILES.concat(CACHABLE_FILES);
self.addEventListener("install", (event) => {

9
modules/svg/register_types.cpp
View File

@ -34,6 +34,12 @@
#include <thorvg.h>
#ifdef THREADS_ENABLED
#define TVG_THREADS 1
#else
#define TVG_THREADS 0
#endif
static Ref<ImageLoaderSVG> image_loader_svg;
void initialize_svg_module(ModuleInitializationLevel p_level) {
@ -42,7 +48,8 @@ void initialize_svg_module(ModuleInitializationLevel p_level) {
}
tvg::CanvasEngine tvgEngine = tvg::CanvasEngine::Sw;
if (tvg::Initializer::init(tvgEngine, 1) != tvg::Result::Success) {
if (tvg::Initializer::init(tvgEngine, TVG_THREADS) != tvg::Result::Success) {
return;
}

2
platform/web/.eslintrc.html.js
View File

@ -15,5 +15,7 @@ module.exports = {
"Godot": true,
"Engine": true,
"$GODOT_CONFIG": true,
"$GODOT_THREADS_ENABLED": true,
"___GODOT_THREADS_ENABLED___": true,
},
};

4
platform/web/SCsub
View File

@ -13,7 +13,7 @@ if "serve" in COMMAND_LINE_TARGETS or "run" in COMMAND_LINE_TARGETS:
except Exception:
print("GODOT_WEB_TEST_PORT must be a valid integer")
sys.exit(255)
serve(env.Dir("#bin/.web_zip").abspath, port, "run" in COMMAND_LINE_TARGETS)
serve(env.Dir(env.GetTemplateZipPath()).abspath, port, "run" in COMMAND_LINE_TARGETS)
sys.exit(0)
web_files = [
@ -95,7 +95,7 @@ engine = [
"js/engine/engine.js",
]
externs = [env.File("#platform/web/js/engine/engine.externs.js")]
js_engine = env.CreateEngineFile("#bin/godot${PROGSUFFIX}.engine.js", engine, externs)
js_engine = env.CreateEngineFile("#bin/godot${PROGSUFFIX}.engine.js", engine, externs, env["threads"])
env.Depends(js_engine, externs)
wrap_list = [

52
platform/web/audio_driver_web.cpp
View File

@ -30,6 +30,8 @@
#include "audio_driver_web.h"
#include "godot_audio.h"
#include "core/config/project_settings.h"
#include <emscripten.h>
@ -184,6 +186,8 @@ Error AudioDriverWeb::input_stop() {
return OK;
}
#ifdef THREADS_ENABLED
/// AudioWorkletNode implementation (threads)
void AudioDriverWorklet::_audio_thread_func(void *p_data) {
AudioDriverWorklet *driver = static_cast<AudioDriverWorklet *>(p_data);
@ -245,3 +249,51 @@ void AudioDriverWorklet::finish_driver() {
quit = true; // Ask thread to quit.
thread.wait_to_finish();
}
#else // No threads.
/// AudioWorkletNode implementation (no threads)
AudioDriverWorklet *AudioDriverWorklet::singleton = nullptr;
Error AudioDriverWorklet::create(int &p_buffer_size, int p_channels) {
if (!godot_audio_has_worklet()) {
return ERR_UNAVAILABLE;
}
return (Error)godot_audio_worklet_create(p_channels);
}
void AudioDriverWorklet::start(float *p_out_buf, int p_out_buf_size, float *p_in_buf, int p_in_buf_size) {
_audio_driver_process();
godot_audio_worklet_start_no_threads(p_out_buf, p_out_buf_size, &_process_callback, p_in_buf, p_in_buf_size, &_capture_callback);
}
void AudioDriverWorklet::_process_callback(int p_pos, int p_samples) {
AudioDriverWorklet *driver = AudioDriverWorklet::get_singleton();
driver->_audio_driver_process(p_pos, p_samples);
}
void AudioDriverWorklet::_capture_callback(int p_pos, int p_samples) {
AudioDriverWorklet *driver = AudioDriverWorklet::get_singleton();
driver->_audio_driver_capture(p_pos, p_samples);
}
/// ScriptProcessorNode implementation
AudioDriverScriptProcessor *AudioDriverScriptProcessor::singleton = nullptr;
void AudioDriverScriptProcessor::_process_callback() {
AudioDriverScriptProcessor::get_singleton()->_audio_driver_capture();
AudioDriverScriptProcessor::get_singleton()->_audio_driver_process();
}
Error AudioDriverScriptProcessor::create(int &p_buffer_samples, int p_channels) {
if (!godot_audio_has_script_processor()) {
return ERR_UNAVAILABLE;
}
return (Error)godot_audio_script_create(&p_buffer_samples, p_channels);
}
void AudioDriverScriptProcessor::start(float *p_out_buf, int p_out_buf_size, float *p_in_buf, int p_in_buf_size) {
godot_audio_script_start(p_in_buf, p_in_buf_size, p_out_buf, p_out_buf_size, &_process_callback);
}
#endif // THREADS_ENABLED

51
platform/web/audio_driver_web.h
View File

@ -90,6 +90,7 @@ public:
AudioDriverWeb() {}
};
#ifdef THREADS_ENABLED
class AudioDriverWorklet : public AudioDriverWeb {
private:
enum {
@ -120,4 +121,54 @@ public:
virtual void unlock() override;
};
#else
class AudioDriverWorklet : public AudioDriverWeb {
private:
static void _process_callback(int p_pos, int p_samples);
static void _capture_callback(int p_pos, int p_samples);
static AudioDriverWorklet *singleton;
protected:
virtual Error create(int &p_buffer_size, int p_output_channels) override;
virtual void start(float *p_out_buf, int p_out_buf_size, float *p_in_buf, int p_in_buf_size) override;
public:
virtual const char *get_name() const override {
return "AudioWorklet";
}
virtual void lock() override {}
virtual void unlock() override {}
static AudioDriverWorklet *get_singleton() { return singleton; }
AudioDriverWorklet() { singleton = this; }
};
class AudioDriverScriptProcessor : public AudioDriverWeb {
private:
static void _process_callback();
static AudioDriverScriptProcessor *singleton;
protected:
virtual Error create(int &p_buffer_size, int p_output_channels) override;
virtual void start(float *p_out_buf, int p_out_buf_size, float *p_in_buf, int p_in_buf_size) override;
virtual void finish_driver() override;
public:
virtual const char *get_name() const override { return "ScriptProcessor"; }
virtual void lock() override {}
virtual void unlock() override {}
static AudioDriverScriptProcessor *get_singleton() { return singleton; }
AudioDriverScriptProcessor() { singleton = this; }
};
#endif // THREADS_ENABLED
#endif // AUDIO_DRIVER_WEB_H

10
platform/web/detect.py
View File

@ -8,6 +8,7 @@ from emscripten_helpers import (
add_js_pre,
add_js_externs,
create_template_zip,
get_template_zip_path,
)
from methods import get_compiler_version
from SCons.Util import WhereIs
@ -161,6 +162,9 @@ def configure(env: "Environment"):
# Add method that joins/compiles our Engine files.
env.AddMethod(create_engine_file, "CreateEngineFile")
# Add method for getting the final zip path
env.AddMethod(get_template_zip_path, "GetTemplateZipPath")
# Add method for creating the final zip file
env.AddMethod(create_template_zip, "CreateTemplateZip")
@ -209,6 +213,7 @@ def configure(env: "Environment"):
stack_size_opt = "STACK_SIZE" if cc_semver >= (3, 1, 25) else "TOTAL_STACK"
env.Append(LINKFLAGS=["-s", "%s=%sKB" % (stack_size_opt, env["stack_size"])])
if env["threads"]:
# Thread support (via SharedArrayBuffer).
env.Append(CPPDEFINES=["PTHREAD_NO_RENAME"])
env.Append(CCFLAGS=["-s", "USE_PTHREADS=1"])
@ -216,6 +221,9 @@ def configure(env: "Environment"):
env.Append(LINKFLAGS=["-s", "DEFAULT_PTHREAD_STACK_SIZE=%sKB" % env["default_pthread_stack_size"]])
env.Append(LINKFLAGS=["-s", "PTHREAD_POOL_SIZE=8"])
env.Append(LINKFLAGS=["-s", "WASM_MEM_MAX=2048MB"])
elif env["proxy_to_pthread"]:
print('"threads=no" support requires "proxy_to_pthread=no", disabling proxy to pthread.')
env["proxy_to_pthread"] = False
if env["lto"] != "none":
# Workaround https://github.com/emscripten-core/emscripten/issues/19781.
@ -224,7 +232,7 @@ def configure(env: "Environment"):
if env["dlink_enabled"]:
if env["proxy_to_pthread"]:
print("GDExtension support requires proxy_to_pthread=no, disabling")
print("GDExtension support requires proxy_to_pthread=no, disabling proxy to pthread.")
env["proxy_to_pthread"] = False
if cc_semver < (3, 1, 14):

4
platform/web/doc_classes/EditorExportPlatformWeb.xml
View File

@ -47,6 +47,10 @@
</member>
<member name="variant/extensions_support" type="bool" setter="" getter="">
</member>
<member name="variant/thread_support" type="bool" setter="" getter="">
If enabled, the exported game will support threads. It requires [url=https://web.dev/articles/coop-coep]a "cross-origin isolated" website[/url], which can be difficult to setup and brings some limitations (e.g. not being able to communicate with third-party websites).
If disabled, the exported game will not support threads. As a result, it is more prone to performance and audio issues, but will only require to be run on a HTTPS website.
</member>
<member name="vram_texture_compression/for_desktop" type="bool" setter="" getter="">
</member>
<member name="vram_texture_compression/for_mobile" type="bool" setter="" getter="">

41
platform/web/emscripten_helpers.py
View File

@ -4,7 +4,12 @@ from SCons.Util import WhereIs
def run_closure_compiler(target, source, env, for_signature):
closure_bin = os.path.join(os.path.dirname(WhereIs("emcc")), "node_modules", ".bin", "google-closure-compiler")
closure_bin = os.path.join(
os.path.dirname(WhereIs("emcc")),
"node_modules",
".bin",
"google-closure-compiler",
)
cmd = [WhereIs("node"), closure_bin]
cmd.extend(["--compilation_level", "ADVANCED_OPTIMIZATIONS"])
for f in env["JSEXTERNS"]:
@ -31,27 +36,29 @@ def get_build_version():
return v
def create_engine_file(env, target, source, externs):
def create_engine_file(env, target, source, externs, threads_enabled):
if env["use_closure_compiler"]:
return env.BuildJS(target, source, JSEXTERNS=externs)
return env.Textfile(target, [env.File(s) for s in source])
subst_dict = {"___GODOT_THREADS_ENABLED": "true" if threads_enabled else "false"}
return env.Substfile(target=target, source=[env.File(s) for s in source], SUBST_DICT=subst_dict)
def create_template_zip(env, js, wasm, worker, side):
binary_name = "godot.editor" if env.editor_build else "godot"
zip_dir = env.Dir("#bin/.web_zip")
zip_dir = env.Dir(env.GetTemplateZipPath())
in_files = [
js,
wasm,
worker,
"#platform/web/js/libs/audio.worklet.js",
]
out_files = [
zip_dir.File(binary_name + ".js"),
zip_dir.File(binary_name + ".wasm"),
zip_dir.File(binary_name + ".worker.js"),
zip_dir.File(binary_name + ".audio.worklet.js"),
]
if env["threads"]:
in_files.append(worker)
out_files.append(zip_dir.File(binary_name + ".worker.js"))
# Dynamic linking (extensions) specific.
if env["dlink_enabled"]:
in_files.append(side) # Side wasm (contains the actual Godot code).
@ -65,18 +72,20 @@ def create_template_zip(env, js, wasm, worker, side):
"godot.editor.html",
"offline.html",
"godot.editor.js",
"godot.editor.worker.js",
"godot.editor.audio.worklet.js",
"logo.svg",
"favicon.png",
]
if env["threads"]:
cache.append("godot.editor.worker.js")
opt_cache = ["godot.editor.wasm"]
subst_dict = {
"@GODOT_VERSION@": get_build_version(),
"@GODOT_NAME@": "GodotEngine",
"@GODOT_CACHE@": json.dumps(cache),
"@GODOT_OPT_CACHE@": json.dumps(opt_cache),
"@GODOT_OFFLINE_PAGE@": "offline.html",
"___GODOT_VERSION___": get_build_version(),
"___GODOT_NAME___": "GodotEngine",
"___GODOT_CACHE___": json.dumps(cache),
"___GODOT_OPT_CACHE___": json.dumps(opt_cache),
"___GODOT_OFFLINE_PAGE___": "offline.html",
"___GODOT_THREADS_ENABLED___": "true" if env["threads"] else "false",
}
html = env.Substfile(target="#bin/godot${PROGSUFFIX}.html", source=html, SUBST_DICT=subst_dict)
in_files.append(html)
@ -88,7 +97,9 @@ def create_template_zip(env, js, wasm, worker, side):
out_files.append(zip_dir.File("favicon.png"))
# PWA
service_worker = env.Substfile(
target="#bin/godot${PROGSUFFIX}.service.worker.js", source=service_worker, SUBST_DICT=subst_dict
target="#bin/godot${PROGSUFFIX}.service.worker.js",
source=service_worker,
SUBST_DICT=subst_dict,
)
in_files.append(service_worker)
out_files.append(zip_dir.File("service.worker.js"))
@ -115,6 +126,10 @@ def create_template_zip(env, js, wasm, worker, side):
)
def get_template_zip_path(env):
return "#bin/.web_zip"
def add_js_libraries(env, libraries):
env.Append(JS_LIBS=env.File(libraries))

26
platform/web/export/export_plugin.cpp
View File

@ -169,6 +169,13 @@ void EditorExportPlatformWeb::_fix_html(Vector<uint8_t> &p_html, const Ref<Edito
replaces["$GODOT_PROJECT_NAME"] = GLOBAL_GET("application/config/name");
replaces["$GODOT_HEAD_INCLUDE"] = head_include + custom_head_include;
replaces["$GODOT_CONFIG"] = str_config;
if (p_preset->get("variant/thread_support")) {
replaces["$GODOT_THREADS_ENABLED"] = "true";
} else {
replaces["$GODOT_THREADS_ENABLED"] = "false";
}
_replace_strings(replaces, p_html);
}
@ -216,9 +223,9 @@ Error EditorExportPlatformWeb::_build_pwa(const Ref<EditorExportPreset> &p_prese
const String name = p_path.get_file().get_basename();
bool extensions = (bool)p_preset->get("variant/extensions_support");
HashMap<String, String> replaces;
replaces["@GODOT_VERSION@"] = String::num_int64(OS::get_singleton()->get_unix_time()) + "|" + String::num_int64(OS::get_singleton()->get_ticks_usec());
replaces["@GODOT_NAME@"] = proj_name.substr(0, 16);
replaces["@GODOT_OFFLINE_PAGE@"] = name + ".offline.html";
replaces["___GODOT_VERSION___"] = String::num_int64(OS::get_singleton()->get_unix_time()) + "|" + String::num_int64(OS::get_singleton()->get_ticks_usec());
replaces["___GODOT_NAME___"] = proj_name.substr(0, 16);
replaces["___GODOT_OFFLINE_PAGE___"] = name + ".offline.html";
// Files cached during worker install.
Array cache_files;
@ -231,7 +238,7 @@ Error EditorExportPlatformWeb::_build_pwa(const Ref<EditorExportPreset> &p_prese
}
cache_files.push_back(name + ".worker.js");
cache_files.push_back(name + ".audio.worklet.js");
replaces["@GODOT_CACHE@"] = Variant(cache_files).to_json_string();
replaces["___GODOT_CACHE___"] = Variant(cache_files).to_json_string();
// Heavy files that are cached on demand.
Array opt_cache_files;
@ -243,7 +250,7 @@ Error EditorExportPlatformWeb::_build_pwa(const Ref<EditorExportPreset> &p_prese
opt_cache_files.push_back(p_shared_objects[i].path.get_file());
}
}
replaces["@GODOT_OPT_CACHE@"] = Variant(opt_cache_files).to_json_string();
replaces["___GODOT_OPT_CACHE___"] = Variant(opt_cache_files).to_json_string();
const String sw_path = dir.path_join(name + ".service.worker.js");
Vector<uint8_t> sw;
@ -335,6 +342,7 @@ void EditorExportPlatformWeb::get_export_options(List<ExportOption> *r_options)
r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "custom_template/release", PROPERTY_HINT_GLOBAL_FILE, "*.zip"), ""));
r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "variant/extensions_support"), false)); // Export type.
r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "variant/thread_support"), true)); // Thread support (i.e. run with or without COEP/COOP headers).
r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "vram_texture_compression/for_desktop"), true)); // S3TC
r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "vram_texture_compression/for_mobile"), false)); // ETC or ETC2, depending on renderer
@ -377,10 +385,11 @@ bool EditorExportPlatformWeb::has_valid_export_configuration(const Ref<EditorExp
String err;
bool valid = false;
bool extensions = (bool)p_preset->get("variant/extensions_support");
bool thread_support = (bool)p_preset->get("variant/thread_support");
// Look for export templates (first official, and if defined custom templates).
bool dvalid = exists_export_template(_get_template_name(extensions, true), &err);
bool rvalid = exists_export_template(_get_template_name(extensions, false), &err);
bool dvalid = exists_export_template(_get_template_name(extensions, thread_support, true), &err);
bool rvalid = exists_export_template(_get_template_name(extensions, thread_support, false), &err);
if (p_preset->get("custom_template/debug") != "") {
dvalid = FileAccess::exists(p_preset->get("custom_template/debug"));
@ -454,7 +463,8 @@ Error EditorExportPlatformWeb::export_project(const Ref<EditorExportPreset> &p_p
template_path = template_path.strip_edges();
if (template_path.is_empty()) {
bool extensions = (bool)p_preset->get("variant/extensions_support");
template_path = find_export_template(_get_template_name(extensions, p_debug));
bool thread_support = (bool)p_preset->get("variant/thread_support");
template_path = find_export_template(_get_template_name(extensions, thread_support, p_debug));
}
if (!template_path.is_empty() && !FileAccess::exists(template_path)) {

5
platform/web/export/export_plugin.h
View File

@ -56,11 +56,14 @@ class EditorExportPlatformWeb : public EditorExportPlatform {
Mutex server_lock;
Thread server_thread;
String _get_template_name(bool p_extension, bool p_debug) const {
String _get_template_name(bool p_extension, bool p_thread_support, bool p_debug) const {
String name = "web";
if (p_extension) {
name += "_dlink";
}
if (!p_thread_support) {
name += "_nothreads";
}
if (p_debug) {
name += "_debug.zip";
} else {

16
platform/web/js/engine/features.js
View File

@ -72,8 +72,14 @@ const Features = { // eslint-disable-line no-unused-vars
*
* @returns {Array<string>} A list of human-readable missing features.
* @function Engine.getMissingFeatures
* @typedef {{ threads: boolean }} SupportedFeatures
* @param {SupportedFeatures} supportedFeatures
*/
getMissingFeatures: function () {
getMissingFeatures: function (supportedFeatures = {}) {
const {
threads: supportsThreads = true,
} = supportedFeatures;
const missing = [];
if (!Features.isWebGLAvailable(2)) {
missing.push('WebGL2 - Check web browser configuration and hardware support');
@ -84,12 +90,16 @@ const Features = { // eslint-disable-line no-unused-vars
if (!Features.isSecureContext()) {
missing.push('Secure Context - Check web server configuration (use HTTPS)');
}
if (supportsThreads) {
if (!Features.isCrossOriginIsolated()) {
missing.push('Cross Origin Isolation - Check web server configuration (send correct headers)');
missing.push('Cross-Origin Isolation - Check that the web server configuration sends the correct headers.');
}
if (!Features.isSharedArrayBufferAvailable()) {
missing.push('SharedArrayBuffer - Check web server configuration (send correct headers)');
missing.push('SharedArrayBuffer - Check that the web server configuration sends the correct headers.');
}
}
// Audio is normally optional since we have a dummy fallback.
return missing;
},

4
platform/web/js/libs/audio.worklet.js
View File

@ -167,7 +167,7 @@ class GodotProcessor extends AudioWorkletProcessor {
GodotProcessor.write_input(this.input_buffer, input);
this.input.write(this.input_buffer);
} else {
this.port.postMessage('Input buffer is full! Skipping input frame.');
// this.port.postMessage('Input buffer is full! Skipping input frame.'); // Uncomment this line to debug input buffer.
}
}
const process_output = GodotProcessor.array_has_data(outputs);
@ -184,7 +184,7 @@ class GodotProcessor extends AudioWorkletProcessor {
this.port.postMessage({ 'cmd': 'read', 'data': chunk });
}
} else {
this.port.postMessage('Output buffer has not enough frames! Skipping output frame.');
// this.port.postMessage('Output buffer has not enough frames! Skipping output frame.'); // Uncomment this line to debug output buffer.
}
}
this.process_notify();

2
scene/main/http_request.cpp
View File

@ -503,7 +503,9 @@ void HTTPRequest::_notification(int p_what) {
void HTTPRequest::set_use_threads(bool p_use) {
ERR_FAIL_COND(get_http_client_status() != HTTPClient::STATUS_DISCONNECTED);
#ifdef THREADS_ENABLED
use_threads.set_to(p_use);
#endif
}
bool HTTPRequest::is_using_threads() const {

8
servers/register_server_types.cpp
View File

@ -88,7 +88,11 @@
ShaderTypes *shader_types = nullptr;
static PhysicsServer3D *_createGodotPhysics3DCallback() {
#ifdef THREADS_ENABLED
bool using_threads = GLOBAL_GET("physics/3d/run_on_separate_thread");
#else
bool using_threads = false;
#endif
PhysicsServer3D *physics_server_3d = memnew(GodotPhysicsServer3D(using_threads));
@ -96,7 +100,11 @@ static PhysicsServer3D *_createGodotPhysics3DCallback() {
}
static PhysicsServer2D *_createGodotPhysics2DCallback() {
#ifdef THREADS_ENABLED
bool using_threads = GLOBAL_GET("physics/2d/run_on_separate_thread");
#else
bool using_threads = false;
#endif
PhysicsServer2D *physics_server_2d = memnew(GodotPhysicsServer2D(using_threads));

10
servers/rendering/rendering_server_default.cpp
View File

@ -395,15 +395,19 @@ RenderingServerDefault::RenderingServerDefault(bool p_create_thread) :
command_queue(p_create_thread) {
RenderingServer::init();
#ifdef THREADS_ENABLED
create_thread = p_create_thread;
if (!p_create_thread) {
if (!create_thread) {
server_thread = Thread::get_caller_id();
} else {
server_thread = 0;
}
#else
create_thread = false;
server_thread = Thread::get_main_id();
#endif
RSG::threaded = create_thread;
RSG::threaded = p_create_thread;
RSG::canvas = memnew(RendererCanvasCull);
RSG::viewport = memnew(RendererViewport);
RendererSceneCull *sr = memnew(RendererSceneCull);

2
servers/rendering/rendering_server_default.h
View File

@ -78,7 +78,7 @@ class RenderingServerDefault : public RenderingServer {
static void _thread_callback(void *_instance);
void _thread_loop();
Thread::ID server_thread;
Thread::ID server_thread = 0;
SafeFlag exit;
Thread thread;
SafeFlag draw_thread_up;