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citra-qt: Add customizable speed limit target (#3353) 

citra-qt: Add customizable speed limit target

* Update SDL config for the new frame_limit option
* Made max lag time a function of target speed percent.
* Added a checkbox to enable/disable frame limiter
* UI: Prevent frame_limit from under/overflowing
* UI: Hide target speed percent when frame limiter is off
* Disable frame limit spin box when framelimit isn't enabled
This commit is contained in:
James Rowe 2018-01-25 22:24:40 -07:00 committed by GitHub
parent 33b0b5163f
commit b002511df0
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GPG Key ID: 4AEE18F83AFDEB23
12 changed files with 155 additions and 96 deletions
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5
src/citra/config.cpp
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@ -91,8 +91,9 @@ void Config::ReadValues() {
Settings::values.resolution_factor =
(float)sdl2_config->GetReal("Renderer", "resolution_factor", 1.0);
Settings::values.use_vsync = sdl2_config->GetBoolean("Renderer", "use_vsync", false);
Settings::values.toggle_framelimit =
sdl2_config->GetBoolean("Renderer", "toggle_framelimit", true);
Settings::values.use_frame_limit = sdl2_config->GetBoolean("Renderer", "use_frame_limit", true);
Settings::values.frame_limit =
static_cast<u16>(sdl2_config->GetInteger("Renderer", "frame_limit", 100));
Settings::values.bg_red = (float)sdl2_config->GetReal("Renderer", "bg_red", 0.0);
Settings::values.bg_green = (float)sdl2_config->GetReal("Renderer", "bg_green", 0.0);

12
src/citra/default_ini.h
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@ -89,6 +89,14 @@ resolution_factor =
# 0 (default): Off, 1: On
use_vsync =
# Turns on the frame limiter, which will limit frames output to the target game speed
# 0: Off, 1: On (default)
use_frame_limit =
# Limits the speed of the game to run no faster than this value as a percentage of target speed
# 1 - 9999: Speed limit as a percentage of target game speed. 100 (default)
frame_limit =
# The clear color for the renderer. What shows up on the sides of the bottom screen.
# Must be in range of 0.0-1.0. Defaults to 1.0 for all.
bg_red =
@ -115,10 +123,6 @@ custom_bottom_top =
custom_bottom_right =
custom_bottom_bottom =
# Whether to toggle frame limiter on or off.
# 0: Off, 1 (default): On
toggle_framelimit =
# Swaps the prominent screen with the other screen.
# For example, if Single Screen is chosen, setting this to 1 will display the bottom screen instead of the top screen.
# 0 (default): Top Screen is prominent, 1: Bottom Screen is prominent

6
src/citra_qt/configuration/config.cpp
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@ -77,7 +77,8 @@ void Config::ReadValues() {
Settings::values.use_shader_jit = qt_config->value("use_shader_jit", true).toBool();
Settings::values.resolution_factor = qt_config->value("resolution_factor", 1.0).toFloat();
Settings::values.use_vsync = qt_config->value("use_vsync", false).toBool();
Settings::values.toggle_framelimit = qt_config->value("toggle_framelimit", true).toBool();
Settings::values.use_frame_limit = qt_config->value("use_frame_limit", true).toBool();
Settings::values.frame_limit = qt_config->value("frame_limit", 100).toInt();
Settings::values.bg_red = qt_config->value("bg_red", 0.0).toFloat();
Settings::values.bg_green = qt_config->value("bg_green", 0.0).toFloat();
@ -241,7 +242,8 @@ void Config::SaveValues() {
qt_config->setValue("use_shader_jit", Settings::values.use_shader_jit);
qt_config->setValue("resolution_factor", (double)Settings::values.resolution_factor);
qt_config->setValue("use_vsync", Settings::values.use_vsync);
qt_config->setValue("toggle_framelimit", Settings::values.toggle_framelimit);
qt_config->setValue("use_frame_limit", Settings::values.use_frame_limit);
qt_config->setValue("frame_limit", Settings::values.frame_limit);
// Cast to double because Qt's written float values are not human-readable
qt_config->setValue("bg_red", (double)Settings::values.bg_red);

8
src/citra_qt/configuration/configure_graphics.cpp
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@ -14,6 +14,8 @@ ConfigureGraphics::ConfigureGraphics(QWidget* parent)
this->setConfiguration();
ui->toggle_vsync->setEnabled(!Core::System::GetInstance().IsPoweredOn());
ui->frame_limit->setEnabled(Settings::values.use_frame_limit);
connect(ui->toggle_frame_limit, &QCheckBox::stateChanged, ui->frame_limit, &QSpinBox::setEnabled);
ui->layoutBox->setEnabled(!Settings::values.custom_layout);
}
@ -96,7 +98,8 @@ void ConfigureGraphics::setConfiguration() {
ui->resolution_factor_combobox->setCurrentIndex(
static_cast<int>(FromResolutionFactor(Settings::values.resolution_factor)));
ui->toggle_vsync->setChecked(Settings::values.use_vsync);
ui->toggle_framelimit->setChecked(Settings::values.toggle_framelimit);
ui->toggle_frame_limit->setChecked(Settings::values.use_frame_limit);
ui->frame_limit->setValue(Settings::values.frame_limit);
ui->layout_combobox->setCurrentIndex(static_cast<int>(Settings::values.layout_option));
ui->swap_screen->setChecked(Settings::values.swap_screen);
}
@ -107,7 +110,8 @@ void ConfigureGraphics::applyConfiguration() {
Settings::values.resolution_factor =
ToResolutionFactor(static_cast<Resolution>(ui->resolution_factor_combobox->currentIndex()));
Settings::values.use_vsync = ui->toggle_vsync->isChecked();
Settings::values.toggle_framelimit = ui->toggle_framelimit->isChecked();
Settings::values.use_frame_limit = ui->toggle_frame_limit->isChecked();
Settings::values.frame_limit = ui->frame_limit->value();
Settings::values.layout_option =
static_cast<Settings::LayoutOption>(ui->layout_combobox->currentIndex());
Settings::values.swap_screen = ui->swap_screen->isChecked();

24
src/citra_qt/configuration/configure_graphics.ui
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@ -44,12 +44,32 @@
</widget>
</item>
<item>
<widget class="QCheckBox" name="toggle_framelimit">
<layout class="QHBoxLayout" name="horizontalLayout_2">
<item>
<widget class="QCheckBox" name="toggle_frame_limit">
<property name="text">
<string>Limit framerate</string>
<string>Limit Speed Percent</string>
</property>
</widget>
</item>
<item>
<widget class="QSpinBox" name="frame_limit">
<property name="suffix">
<string>%</string>
</property>
<property name="minimum">
<number>1</number>
</property>
<property name="maximum">
<number>9999</number>
</property>
<property name="value">
<number>100</number>
</property>
</widget>
</item>
</layout>
</item>
<item>
<layout class="QHBoxLayout" name="horizontalLayout">
<item>

28
src/citra_qt/main.cpp
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@ -269,6 +269,10 @@ void GMainWindow::InitializeHotkeys() {
RegisterHotkey("Main Window", "Fullscreen", QKeySequence::FullScreen);
RegisterHotkey("Main Window", "Exit Fullscreen", QKeySequence(Qt::Key_Escape),
Qt::ApplicationShortcut);
RegisterHotkey("Main Window", "Increase Speed Limit", QKeySequence("+"),
Qt::ApplicationShortcut);
RegisterHotkey("Main Window", "Decrease Speed Limit", QKeySequence("-"),
Qt::ApplicationShortcut);
LoadHotkeys();
connect(GetHotkey("Main Window", "Load File", this), &QShortcut::activated, this,
@ -287,6 +291,21 @@ void GMainWindow::InitializeHotkeys() {
ToggleFullscreen();
}
});
constexpr u16 SPEED_LIMIT_STEP = 5;
connect(GetHotkey("Main Window", "Increase Speed Limit", this), &QShortcut::activated, this,
[&] {
if (Settings::values.frame_limit < 9999 - SPEED_LIMIT_STEP) {
Settings::values.frame_limit += SPEED_LIMIT_STEP;
UpdateStatusBar();
}
});
connect(GetHotkey("Main Window", "Decrease Speed Limit", this), &QShortcut::activated, this,
[&] {
if (Settings::values.frame_limit > SPEED_LIMIT_STEP) {
Settings::values.frame_limit -= SPEED_LIMIT_STEP;
UpdateStatusBar();
}
});
}
void GMainWindow::ShowUpdaterWidgets() {
@ -912,7 +931,14 @@ void GMainWindow::UpdateStatusBar() {
auto results = Core::System::GetInstance().GetAndResetPerfStats();
emu_speed_label->setText(tr("Speed: %1%").arg(results.emulation_speed * 100.0, 0, 'f', 0));
if (Settings::values.use_frame_limit) {
emu_speed_label->setText(tr("Speed: %1% / %2%")
.arg(results.emulation_speed * 100.0, 0, 'f', 0)
.arg(Settings::values.frame_limit));
} else {
emu_speed_label->setText(tr("Speed: %1%")
.arg(results.emulation_speed * 100.0, 0, 'f', 0));
}
game_fps_label->setText(tr("Game: %1 FPS").arg(results.game_fps, 0, 'f', 0));
emu_frametime_label->setText(tr("Frame: %1 ms").arg(results.frametime * 1000.0, 0, 'f', 2));

19
src/core/perf_stats.cpp
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@ -75,24 +75,27 @@ double PerfStats::GetLastFrameTimeScale() {
}
void FrameLimiter::DoFrameLimiting(u64 current_system_time_us) {
// Max lag caused by slow frames. Can be adjusted to compensate for too many slow frames. Higher
// values increase the time needed to recover and limit framerate again after spikes.
constexpr microseconds MAX_LAG_TIME_US = 25ms;
if (!Settings::values.toggle_framelimit) {
if (!Settings::values.use_frame_limit) {
return;
}
auto now = Clock::now();
double sleep_scale = Settings::values.frame_limit / 100.0;
frame_limiting_delta_err += microseconds(current_system_time_us - previous_system_time_us);
// Max lag caused by slow frames. Shouldn't be more than the length of a frame at the current
// speed percent or it will clamp too much and prevent this from properly limiting to that
// percent. High values means it'll take longer after a slow frame to recover and start limiting
const microseconds max_lag_time_us = duration_cast<microseconds>(
std::chrono::duration<double, std::chrono::microseconds::period>(25ms / sleep_scale));
frame_limiting_delta_err += duration_cast<microseconds>(
std::chrono::duration<double, std::chrono::microseconds::period>(
(current_system_time_us - previous_system_time_us) / sleep_scale));
frame_limiting_delta_err -= duration_cast<microseconds>(now - previous_walltime);
frame_limiting_delta_err =
MathUtil::Clamp(frame_limiting_delta_err, -MAX_LAG_TIME_US, MAX_LAG_TIME_US);
MathUtil::Clamp(frame_limiting_delta_err, -max_lag_time_us, max_lag_time_us);
if (frame_limiting_delta_err > microseconds::zero()) {
std::this_thread::sleep_for(frame_limiting_delta_err);
auto now_after_sleep = Clock::now();
frame_limiting_delta_err -= duration_cast<microseconds>(now_after_sleep - now);
now = now_after_sleep;

1
src/core/settings.cpp
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@ -22,7 +22,6 @@ void Apply() {
VideoCore::g_hw_renderer_enabled = values.use_hw_renderer;
VideoCore::g_shader_jit_enabled = values.use_shader_jit;
VideoCore::g_toggle_framelimit_enabled = values.toggle_framelimit;
if (VideoCore::g_emu_window) {
auto layout = VideoCore::g_emu_window->GetFramebufferLayout();

3
src/core/settings.h
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@ -97,7 +97,8 @@ struct Values {
bool use_shader_jit;
float resolution_factor;
bool use_vsync;
bool toggle_framelimit;
bool use_frame_limit;
u16 frame_limit;
LayoutOption layout_option;
bool swap_screen;

5
src/core/telemetry_session.cpp
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@ -167,8 +167,9 @@ TelemetrySession::TelemetrySession() {
AddField(Telemetry::FieldType::UserConfig, "Core_UseCpuJit", Settings::values.use_cpu_jit);
AddField(Telemetry::FieldType::UserConfig, "Renderer_ResolutionFactor",
Settings::values.resolution_factor);
AddField(Telemetry::FieldType::UserConfig, "Renderer_ToggleFramelimit",
Settings::values.toggle_framelimit);
AddField(Telemetry::FieldType::UserConfig, "Renderer_UseFrameLimit",
Settings::values.use_frame_limit);
AddField(Telemetry::FieldType::UserConfig, "Renderer_FrameLimit", Settings::values.frame_limit);
AddField(Telemetry::FieldType::UserConfig, "Renderer_UseHwRenderer",
Settings::values.use_hw_renderer);
AddField(Telemetry::FieldType::UserConfig, "Renderer_UseShaderJit",

3
src/video_core/video_core.cpp
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@ -20,7 +20,6 @@ std::unique_ptr<RendererBase> g_renderer; ///< Renderer plugin
std::atomic<bool> g_hw_renderer_enabled;
std::atomic<bool> g_shader_jit_enabled;
std::atomic<bool> g_vsync_enabled;
std::atomic<bool> g_toggle_framelimit_enabled;
/// Initialize the video core
bool Init(EmuWindow* emu_window) {
@ -47,4 +46,4 @@ void Shutdown() {
LOG_DEBUG(Render, "shutdown OK");
}
} // namespace
} // namespace VideoCore

3
src/video_core/video_core.h
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@ -22,7 +22,6 @@ extern EmuWindow* g_emu_window; ///< Emu window
// qt ui)
extern std::atomic<bool> g_hw_renderer_enabled;
extern std::atomic<bool> g_shader_jit_enabled;
extern std::atomic<bool> g_toggle_framelimit_enabled;
/// Start the video core
void Start();
@ -33,4 +32,4 @@ bool Init(EmuWindow* emu_window);
/// Shutdown the video core
void Shutdown();
} // namespace
} // namespace VideoCore