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Merge pull request #707 from Jan200101/PR/gamemode

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Add Performance related settings
This commit is contained in:
Sefa Eyeoglu 2022-07-06 17:11:43 +02:00 committed by GitHub
commit 04b865adae
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GPG Key ID: 4AEE18F83AFDEB23
16 changed files with 629 additions and 13 deletions
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1
CMakeLists.txt
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@ -299,6 +299,7 @@ add_subdirectory(libraries/classparser) # class parser library
add_subdirectory(libraries/optional-bare)
add_subdirectory(libraries/tomlc99) # toml parser
add_subdirectory(libraries/katabasis) # An OAuth2 library that tried to do too much
add_subdirectory(libraries/gamemode)
############################### Built Artifacts ###############################

5
launcher/Application.cpp
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@ -638,6 +638,11 @@ Application::Application(int &argc, char **argv) : QApplication(argc, argv)
m_settings->registerSetting("UseNativeOpenAL", false);
m_settings->registerSetting("UseNativeGLFW", false);
// Peformance related options
m_settings->registerSetting("EnableFeralGamemode", false);
m_settings->registerSetting("EnableMangoHud", false);
m_settings->registerSetting("UseDiscreteGpu", false);
// Game time
m_settings->registerSetting("ShowGameTime", true);
m_settings->registerSetting("ShowGlobalGameTime", true);

1
launcher/BaseInstance.h
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@ -188,6 +188,7 @@ public:
* Create envrironment variables for running the instance
*/
virtual QProcessEnvironment createEnvironment() = 0;
virtual QProcessEnvironment createLaunchEnvironment() = 0;
/*!
* Returns a matcher that can maps relative paths within the instance to whether they are 'log files'

7
launcher/CMakeLists.txt
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@ -972,6 +972,13 @@ target_link_libraries(Launcher_logic
BuildConfig
Katabasis
)
if (UNIX AND NOT CYGWIN AND NOT APPLE)
target_link_libraries(Launcher_logic
gamemode
)
endif()
target_link_libraries(Launcher_logic
Qt5::Core
Qt5::Xml

4
launcher/NullInstance.h
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@ -39,6 +39,10 @@ public:
{
return QProcessEnvironment();
}
QProcessEnvironment createLaunchEnvironment() override
{
return QProcessEnvironment();
}
QMap<QString, QString> getVariables() const override
{
return QMap<QString, QString>();

36
launcher/minecraft/MinecraftInstance.cpp
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@ -154,6 +154,12 @@ MinecraftInstance::MinecraftInstance(SettingsObjectPtr globalSettings, SettingsO
m_settings->registerOverride(globalSettings->getSetting("UseNativeOpenAL"), nativeLibraryWorkaroundsOverride);
m_settings->registerOverride(globalSettings->getSetting("UseNativeGLFW"), nativeLibraryWorkaroundsOverride);
// Peformance related options
auto performanceOverride = m_settings->registerSetting("OverridePerformance", false);
m_settings->registerOverride(globalSettings->getSetting("EnableFeralGamemode"), performanceOverride);
m_settings->registerOverride(globalSettings->getSetting("EnableMangoHud"), performanceOverride);
m_settings->registerOverride(globalSettings->getSetting("UseDiscreteGpu"), performanceOverride);
// Game time
auto gameTimeOverride = m_settings->registerSetting("OverrideGameTime", false);
m_settings->registerOverride(globalSettings->getSetting("ShowGameTime"), gameTimeOverride);
@ -435,6 +441,36 @@ QProcessEnvironment MinecraftInstance::createEnvironment()
return env;
}
QProcessEnvironment MinecraftInstance::createLaunchEnvironment()
{
// prepare the process environment
QProcessEnvironment env = createEnvironment();
#ifdef Q_OS_LINUX
if (settings()->get("EnableMangoHud").toBool())
{
auto preload = env.value("LD_PRELOAD", "") + ":libMangoHud_dlsym.so:libMangoHud.so";
auto lib_path = env.value("LD_LIBRARY_PATH", "") + ":/usr/local/$LIB/mangohud/:/usr/$LIB/mangohud/";
env.insert("LD_PRELOAD", preload);
env.insert("LD_LIBRARY_PATH", lib_path);
env.insert("MANGOHUD", "1");
}
if (settings()->get("UseDiscreteGpu").toBool())
{
// Open Source Drivers
env.insert("DRI_PRIME", "1");
// Proprietary Nvidia Drivers
env.insert("__NV_PRIME_RENDER_OFFLOAD", "1");
env.insert("__VK_LAYER_NV_optimus", "NVIDIA_only");
env.insert("__GLX_VENDOR_LIBRARY_NAME", "nvidia");
}
#endif
return env;
}
static QString replaceTokensIn(QString text, QMap<QString, QString> with)
{
QString result;

1
launcher/minecraft/MinecraftInstance.h
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@ -91,6 +91,7 @@ public:
/// create an environment for launching processes
QProcessEnvironment createEnvironment() override;
QProcessEnvironment createLaunchEnvironment() override;
/// guess log level from a line of minecraft log
MessageLevel::Enum guessLevel(const QString &line, MessageLevel::Enum level) override;

22
launcher/minecraft/launch/DirectJavaLaunch.cpp
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@ -12,13 +12,18 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "DirectJavaLaunch.h"
#include <QStandardPaths>
#include <launch/LaunchTask.h>
#include <minecraft/MinecraftInstance.h>
#include <FileSystem.h>
#include <Commandline.h>
#include <QStandardPaths>
#ifdef Q_OS_LINUX
#include "gamemode_client.h"
#endif
DirectJavaLaunch::DirectJavaLaunch(LaunchTask *parent) : LaunchStep(parent)
{
@ -50,7 +55,7 @@ void DirectJavaLaunch::executeTask()
auto javaPath = FS::ResolveExecutable(instance->settings()->get("JavaPath").toString());
m_process.setProcessEnvironment(instance->createEnvironment());
m_process.setProcessEnvironment(instance->createLaunchEnvironment());
// make detachable - this will keep the process running even if the object is destroyed
m_process.setDetachable(true);
@ -79,6 +84,17 @@ void DirectJavaLaunch::executeTask()
{
m_process.start(javaPath, args);
}
#ifdef Q_OS_LINUX
if (instance->settings()->get("EnableFeralGamemode").toBool())
{
auto pid = m_process.processId();
if (pid)
{
gamemode_request_start_for(pid);
}
}
#endif
}
void DirectJavaLaunch::on_state(LoggedProcess::State state)

17
launcher/minecraft/launch/LauncherPartLaunch.cpp
View File

@ -44,6 +44,10 @@
#include "Commandline.h"
#include "Application.h"
#ifdef Q_OS_LINUX
#include "gamemode_client.h"
#endif
LauncherPartLaunch::LauncherPartLaunch(LaunchTask *parent) : LaunchStep(parent)
{
auto instance = parent->instance();
@ -102,7 +106,7 @@ void LauncherPartLaunch::executeTask()
auto javaPath = FS::ResolveExecutable(instance->settings()->get("JavaPath").toString());
m_process.setProcessEnvironment(instance->createEnvironment());
m_process.setProcessEnvironment(instance->createLaunchEnvironment());
// make detachable - this will keep the process running even if the object is destroyed
m_process.setDetachable(true);
@ -167,6 +171,17 @@ void LauncherPartLaunch::executeTask()
{
m_process.start(javaPath, args);
}
#ifdef Q_OS_LINUX
if (instance->settings()->get("EnableFeralGamemode").toBool())
{
auto pid = m_process.processId();
if (pid)
{
gamemode_request_start_for(pid);
}
}
#endif
}
void LauncherPartLaunch::on_state(LoggedProcess::State state)

13
launcher/ui/pages/global/MinecraftPage.cpp
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@ -87,6 +87,11 @@ void MinecraftPage::applySettings()
s->set("UseNativeOpenAL", ui->useNativeOpenALCheck->isChecked());
s->set("UseNativeGLFW", ui->useNativeGLFWCheck->isChecked());
// Peformance related options
s->set("EnableFeralGamemode", ui->enableFeralGamemodeCheck->isChecked());
s->set("EnableMangoHud", ui->enableMangoHud->isChecked());
s->set("UseDiscreteGpu", ui->useDiscreteGpuCheck->isChecked());
// Game time
s->set("ShowGameTime", ui->showGameTime->isChecked());
s->set("ShowGlobalGameTime", ui->showGlobalGameTime->isChecked());
@ -109,6 +114,14 @@ void MinecraftPage::loadSettings()
ui->useNativeOpenALCheck->setChecked(s->get("UseNativeOpenAL").toBool());
ui->useNativeGLFWCheck->setChecked(s->get("UseNativeGLFW").toBool());
ui->enableFeralGamemodeCheck->setChecked(s->get("EnableFeralGamemode").toBool());
ui->enableMangoHud->setChecked(s->get("EnableMangoHud").toBool());
ui->useDiscreteGpuCheck->setChecked(s->get("UseDiscreteGpu").toBool());
#if !defined(Q_OS_LINUX)
ui->perfomanceGroupBox->setVisible(false);
#endif
ui->showGameTime->setChecked(s->get("ShowGameTime").toBool());
ui->showGlobalGameTime->setChecked(s->get("ShowGlobalGameTime").toBool());
ui->recordGameTime->setChecked(s->get("RecordGameTime").toBool());

60
launcher/ui/pages/global/MinecraftPage.ui
View File

@ -134,6 +134,45 @@
</layout>
</widget>
</item>
<item>
<widget class="QGroupBox" name="perfomanceGroupBox">
<property name="title">
<string>Performance</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout_2">
<item>
<widget class="QCheckBox" name="enableFeralGamemodeCheck">
<property name="toolTip">
<string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Enable Feral Interactive's GameMode, to potentially improve gaming performance.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
</property>
<property name="text">
<string>Enable Feral GameMode</string>
</property>
</widget>
</item>
<item>
<widget class="QCheckBox" name="enableMangoHud">
<property name="toolTip">
<string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Enable MangoHud's advanced performance overlay.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
</property>
<property name="text">
<string>Enable MangoHud</string>
</property>
</widget>
</item>
<item>
<widget class="QCheckBox" name="useDiscreteGpuCheck">
<property name="toolTip">
<string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Use the discrete GPU instead of the primary GPU.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
</property>
<property name="text">
<string>Use discrete GPU</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QGroupBox" name="gameTimeGroupBox">
<property name="title">
@ -181,15 +220,15 @@
</widget>
</item>
<item>
<widget class="QCheckBox" name="quitAfterGameStopCheck">
<property name="toolTip">
<string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;The launcher will automatically quit after the game exits or crashes.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
</property>
<property name="text">
<string>&amp;Quit the launcher after game window closes</string>
</property>
</widget>
</item>
<widget class="QCheckBox" name="quitAfterGameStopCheck">
<property name="toolTip">
<string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;The launcher will automatically quit after the game exits or crashes.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
</property>
<property name="text">
<string>&amp;Quit the launcher after game window closes</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>
@ -218,6 +257,9 @@
<tabstop>windowHeightSpinBox</tabstop>
<tabstop>useNativeGLFWCheck</tabstop>
<tabstop>useNativeOpenALCheck</tabstop>
<tabstop>enableFeralGamemodeCheck</tabstop>
<tabstop>enableMangoHud</tabstop>
<tabstop>useDiscreteGpuCheck</tabstop>
</tabstops>
<resources/>
<connections/>

26
launcher/ui/pages/instance/InstanceSettingsPage.cpp
View File

@ -232,6 +232,22 @@ void InstanceSettingsPage::applySettings()
m_settings->reset("UseNativeGLFW");
}
// Performance
bool performance = ui->perfomanceGroupBox->isChecked();
m_settings->set("OverridePerformance", performance);
if(performance)
{
m_settings->set("EnableFeralGamemode", ui->enableFeralGamemodeCheck->isChecked());
m_settings->set("EnableMangoHud", ui->enableMangoHud->isChecked());
m_settings->set("UseDiscreteGpu", ui->useDiscreteGpuCheck->isChecked());
}
else
{
m_settings->reset("EnableFeralGamemode");
m_settings->reset("EnableMangoHud");
m_settings->reset("UseDiscreteGpu");
}
// Game time
bool gameTime = ui->gameTimeGroupBox->isChecked();
m_settings->set("OverrideGameTime", gameTime);
@ -325,6 +341,16 @@ void InstanceSettingsPage::loadSettings()
ui->useNativeGLFWCheck->setChecked(m_settings->get("UseNativeGLFW").toBool());
ui->useNativeOpenALCheck->setChecked(m_settings->get("UseNativeOpenAL").toBool());
// Performance
ui->perfomanceGroupBox->setChecked(m_settings->get("OverridePerformance").toBool());
ui->enableFeralGamemodeCheck->setChecked(m_settings->get("EnableFeralGamemode").toBool());
ui->enableMangoHud->setChecked(m_settings->get("EnableMangoHud").toBool());
ui->useDiscreteGpuCheck->setChecked(m_settings->get("UseDiscreteGpu").toBool());
#if !defined(Q_OS_LINUX)
ui->perfomanceGroupBox->setVisible(false);
#endif
// Miscellanous
ui->gameTimeGroupBox->setChecked(m_settings->get("OverrideGameTime").toBool());
ui->showGameTime->setChecked(m_settings->get("ShowGameTime").toBool());

68
launcher/ui/pages/instance/InstanceSettingsPage.ui
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@ -455,6 +455,74 @@
</item>
</layout>
</widget>
<widget class="QWidget" name="performancePage">
<attribute name="title">
<string>Performance</string>
</attribute>
<layout class="QVBoxLayout" name="verticalLayout_14">
<item>
<widget class="QGroupBox" name="perfomanceGroupBox">
<property name="enabled">
<bool>true</bool>
</property>
<property name="title">
<string>Performance</string>
</property>
<property name="checkable">
<bool>true</bool>
</property>
<property name="checked">
<bool>false</bool>
</property>
<layout class="QVBoxLayout" name="verticalLayout_13">
<item>
<widget class="QCheckBox" name="enableFeralGamemodeCheck">
<property name="toolTip">
<string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Enable Feral Interactive's GameMode, to potentially improve gaming performance.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
</property>
<property name="text">
<string>Enable Feral GameMode</string>
</property>
</widget>
</item>
<item>
<widget class="QCheckBox" name="enableMangoHud">
<property name="toolTip">
<string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Enable MangoHud's advanced performance overlay.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
</property>
<property name="text">
<string>Enable MangoHud</string>
</property>
</widget>
</item>
<item>
<widget class="QCheckBox" name="useDiscreteGpuCheck">
<property name="toolTip">
<string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Use the discrete GPU instead of the primary GPU.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
</property>
<property name="text">
<string>Use discrete GPU</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<spacer name="verticalSpacer_2">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
</layout>
</widget>
<widget class="QWidget" name="miscellaneousPage">
<attribute name="title">
<string>Miscellaneous</string>

9
libraries/README.md
View File

@ -9,6 +9,14 @@ This library has served as a base for some (much more full-featured and advanced
Copyright belongs to Petr Mrázek, unless explicitly stated otherwise in the source files. Available under the Apache 2.0 license.
## gamemode
A performance optimization daemon.
See [github repo](https://github.com/FeralInteractive/gamemode).
BSD licensed
## hoedown
Hoedown is a revived fork of Sundown, the Markdown parser based on the original code of the Upskirt library by Natacha Porté.
@ -179,3 +187,4 @@ Licenced under the MIT licence.
Tiny implementation of LZMA2 de/compression. This format is only used by Forge to save bandwidth.
Public domain.

7
libraries/gamemode/CMakeLists.txt Normal file
View File

@ -0,0 +1,7 @@
cmake_minimum_required(VERSION 3.9.4)
project(gamemode
VERSION 1.6.1)
add_library(gamemode)
target_include_directories(gamemode PUBLIC include)
target_link_libraries(gamemode PUBLIC ${CMAKE_DL_LIBS})

365
libraries/gamemode/include/gamemode_client.h Normal file
View File

@ -0,0 +1,365 @@
/*
Copyright (c) 2017-2019, Feral Interactive
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of Feral Interactive nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CLIENT_GAMEMODE_H
#define CLIENT_GAMEMODE_H
/*
* GameMode supports the following client functions
* Requests are refcounted in the daemon
*
* int gamemode_request_start() - Request gamemode starts
* 0 if the request was sent successfully
* -1 if the request failed
*
* int gamemode_request_end() - Request gamemode ends
* 0 if the request was sent successfully
* -1 if the request failed
*
* GAMEMODE_AUTO can be defined to make the above two functions apply during static init and
* destruction, as appropriate. In this configuration, errors will be printed to stderr
*
* int gamemode_query_status() - Query the current status of gamemode
* 0 if gamemode is inactive
* 1 if gamemode is active
* 2 if gamemode is active and this client is registered
* -1 if the query failed
*
* int gamemode_request_start_for(pid_t pid) - Request gamemode starts for another process
* 0 if the request was sent successfully
* -1 if the request failed
* -2 if the request was rejected
*
* int gamemode_request_end_for(pid_t pid) - Request gamemode ends for another process
* 0 if the request was sent successfully
* -1 if the request failed
* -2 if the request was rejected
*
* int gamemode_query_status_for(pid_t pid) - Query status of gamemode for another process
* 0 if gamemode is inactive
* 1 if gamemode is active
* 2 if gamemode is active and this client is registered
* -1 if the query failed
*
* const char* gamemode_error_string() - Get an error string
* returns a string describing any of the above errors
*
* Note: All the above requests can be blocking - dbus requests can and will block while the daemon
* handles the request. It is not recommended to make these calls in performance critical code
*/
#include <stdbool.h>
#include <stdio.h>
#include <dlfcn.h>
#include <string.h>
#include <sys/types.h>
static char internal_gamemode_client_error_string[512] = { 0 };
/**
* Load libgamemode dynamically to dislodge us from most dependencies.
* This allows clients to link and/or use this regardless of runtime.
* See SDL2 for an example of the reasoning behind this in terms of
* dynamic versioning as well.
*/
static volatile int internal_libgamemode_loaded = 1;
/* Typedefs for the functions to load */
typedef int (*api_call_return_int)(void);
typedef const char *(*api_call_return_cstring)(void);
typedef int (*api_call_pid_return_int)(pid_t);
/* Storage for functors */
static api_call_return_int REAL_internal_gamemode_request_start = NULL;
static api_call_return_int REAL_internal_gamemode_request_end = NULL;
static api_call_return_int REAL_internal_gamemode_query_status = NULL;
static api_call_return_cstring REAL_internal_gamemode_error_string = NULL;
static api_call_pid_return_int REAL_internal_gamemode_request_start_for = NULL;
static api_call_pid_return_int REAL_internal_gamemode_request_end_for = NULL;
static api_call_pid_return_int REAL_internal_gamemode_query_status_for = NULL;
/**
* Internal helper to perform the symbol binding safely.
*
* Returns 0 on success and -1 on failure
*/
__attribute__((always_inline)) static inline int internal_bind_libgamemode_symbol(
void *handle, const char *name, void **out_func, size_t func_size, bool required)
{
void *symbol_lookup = NULL;
char *dl_error = NULL;
/* Safely look up the symbol */
symbol_lookup = dlsym(handle, name);
dl_error = dlerror();
if (required && (dl_error || !symbol_lookup)) {
snprintf(internal_gamemode_client_error_string,
sizeof(internal_gamemode_client_error_string),
"dlsym failed - %s",
dl_error);
return -1;
}
/* Have the symbol correctly, copy it to make it usable */
memcpy(out_func, &symbol_lookup, func_size);
return 0;
}
/**
* Loads libgamemode and needed functions
*
* Returns 0 on success and -1 on failure
*/
__attribute__((always_inline)) static inline int internal_load_libgamemode(void)
{
/* We start at 1, 0 is a success and -1 is a fail */
if (internal_libgamemode_loaded != 1) {
return internal_libgamemode_loaded;
}
/* Anonymous struct type to define our bindings */
struct binding {
const char *name;
void **functor;
size_t func_size;
bool required;
} bindings[] = {
{ "real_gamemode_request_start",
(void **)&REAL_internal_gamemode_request_start,
sizeof(REAL_internal_gamemode_request_start),
true },
{ "real_gamemode_request_end",
(void **)&REAL_internal_gamemode_request_end,
sizeof(REAL_internal_gamemode_request_end),
true },
{ "real_gamemode_query_status",
(void **)&REAL_internal_gamemode_query_status,
sizeof(REAL_internal_gamemode_query_status),
false },
{ "real_gamemode_error_string",
(void **)&REAL_internal_gamemode_error_string,
sizeof(REAL_internal_gamemode_error_string),
true },
{ "real_gamemode_request_start_for",
(void **)&REAL_internal_gamemode_request_start_for,
sizeof(REAL_internal_gamemode_request_start_for),
false },
{ "real_gamemode_request_end_for",
(void **)&REAL_internal_gamemode_request_end_for,
sizeof(REAL_internal_gamemode_request_end_for),
false },
{ "real_gamemode_query_status_for",
(void **)&REAL_internal_gamemode_query_status_for,
sizeof(REAL_internal_gamemode_query_status_for),
false },
};
void *libgamemode = NULL;
/* Try and load libgamemode */
libgamemode = dlopen("libgamemode.so.0", RTLD_NOW);
if (!libgamemode) {
/* Attempt to load unversioned library for compatibility with older
* versions (as of writing, there are no ABI changes between the two -
* this may need to change if ever ABI-breaking changes are made) */
libgamemode = dlopen("libgamemode.so", RTLD_NOW);
if (!libgamemode) {
snprintf(internal_gamemode_client_error_string,
sizeof(internal_gamemode_client_error_string),
"dlopen failed - %s",
dlerror());
internal_libgamemode_loaded = -1;
return -1;
}
}
/* Attempt to bind all symbols */
for (size_t i = 0; i < sizeof(bindings) / sizeof(bindings[0]); i++) {
struct binding *binder = &bindings[i];
if (internal_bind_libgamemode_symbol(libgamemode,
binder->name,
binder->functor,
binder->func_size,
binder->required)) {
internal_libgamemode_loaded = -1;
return -1;
};
}
/* Success */
internal_libgamemode_loaded = 0;
return 0;
}
/**
* Redirect to the real libgamemode
*/
__attribute__((always_inline)) static inline const char *gamemode_error_string(void)
{
/* If we fail to load the system gamemode, or we have an error string already, return our error
* string instead of diverting to the system version */
if (internal_load_libgamemode() < 0 || internal_gamemode_client_error_string[0] != '\0') {
return internal_gamemode_client_error_string;
}
return REAL_internal_gamemode_error_string();
}
/**
* Redirect to the real libgamemode
* Allow automatically requesting game mode
* Also prints errors as they happen.
*/
#ifdef GAMEMODE_AUTO
__attribute__((constructor))
#else
__attribute__((always_inline)) static inline
#endif
int gamemode_request_start(void)
{
/* Need to load gamemode */
if (internal_load_libgamemode() < 0) {
#ifdef GAMEMODE_AUTO
fprintf(stderr, "gamemodeauto: %s\n", gamemode_error_string());
#endif
return -1;
}
if (REAL_internal_gamemode_request_start() < 0) {
#ifdef GAMEMODE_AUTO
fprintf(stderr, "gamemodeauto: %s\n", gamemode_error_string());
#endif
return -1;
}
return 0;
}
/* Redirect to the real libgamemode */
#ifdef GAMEMODE_AUTO
__attribute__((destructor))
#else
__attribute__((always_inline)) static inline
#endif
int gamemode_request_end(void)
{
/* Need to load gamemode */
if (internal_load_libgamemode() < 0) {
#ifdef GAMEMODE_AUTO
fprintf(stderr, "gamemodeauto: %s\n", gamemode_error_string());
#endif
return -1;
}
if (REAL_internal_gamemode_request_end() < 0) {
#ifdef GAMEMODE_AUTO
fprintf(stderr, "gamemodeauto: %s\n", gamemode_error_string());
#endif
return -1;
}
return 0;
}
/* Redirect to the real libgamemode */
__attribute__((always_inline)) static inline int gamemode_query_status(void)
{
/* Need to load gamemode */
if (internal_load_libgamemode() < 0) {
return -1;
}
if (REAL_internal_gamemode_query_status == NULL) {
snprintf(internal_gamemode_client_error_string,
sizeof(internal_gamemode_client_error_string),
"gamemode_query_status missing (older host?)");
return -1;
}
return REAL_internal_gamemode_query_status();
}
/* Redirect to the real libgamemode */
__attribute__((always_inline)) static inline int gamemode_request_start_for(pid_t pid)
{
/* Need to load gamemode */
if (internal_load_libgamemode() < 0) {
return -1;
}
if (REAL_internal_gamemode_request_start_for == NULL) {
snprintf(internal_gamemode_client_error_string,
sizeof(internal_gamemode_client_error_string),
"gamemode_request_start_for missing (older host?)");
return -1;
}
return REAL_internal_gamemode_request_start_for(pid);
}
/* Redirect to the real libgamemode */
__attribute__((always_inline)) static inline int gamemode_request_end_for(pid_t pid)
{
/* Need to load gamemode */
if (internal_load_libgamemode() < 0) {
return -1;
}
if (REAL_internal_gamemode_request_end_for == NULL) {
snprintf(internal_gamemode_client_error_string,
sizeof(internal_gamemode_client_error_string),
"gamemode_request_end_for missing (older host?)");
return -1;
}
return REAL_internal_gamemode_request_end_for(pid);
}
/* Redirect to the real libgamemode */
__attribute__((always_inline)) static inline int gamemode_query_status_for(pid_t pid)
{
/* Need to load gamemode */
if (internal_load_libgamemode() < 0) {
return -1;
}
if (REAL_internal_gamemode_query_status_for == NULL) {
snprintf(internal_gamemode_client_error_string,
sizeof(internal_gamemode_client_error_string),
"gamemode_query_status_for missing (older host?)");
return -1;
}
return REAL_internal_gamemode_query_status_for(pid);
}
#endif // CLIENT_GAMEMODE_H