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Feature: allow a toggle to enable/disable vsync

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Vsync should be off by default, as for most players it will be
better to play without vsync. Exception exist, mainly people who
play in fullscreen mode.
pull/241/head
Patric Stout 3 years ago committed by Patric Stout
parent 56f982fa7f
commit f0f2073006
10 changed files with 68 additions and 12 deletions
Show Stats Download Patch File Download Diff File

3
src/lang/english.txt
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@ -1006,6 +1006,9 @@ STR_GAME_OPTIONS_VIDEO_ACCELERATION :{BLACK}Hardware
STR_GAME_OPTIONS_VIDEO_ACCELERATION_TOOLTIP :{BLACK}Check this box to allow OpenTTD to try to use hardware acceleration. A changed setting will only be applied upon game restart
STR_GAME_OPTIONS_VIDEO_ACCELERATION_RESTART :{WHITE}The setting will only take effect after a game restart
STR_GAME_OPTIONS_VIDEO_VSYNC :{BLACK}VSync
STR_GAME_OPTIONS_VIDEO_VSYNC_TOOLTIP :{BLACK}Check this box to v-sync the screen. A changed setting will only be applied upon game restart. Only works with hardware acceleration enabled
STR_GAME_OPTIONS_GUI_ZOOM_FRAME :{BLACK}Interface size
STR_GAME_OPTIONS_GUI_ZOOM_DROPDOWN_TOOLTIP :{BLACK}Select the interface element size to use

31
src/settings_gui.cpp
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@ -458,6 +458,19 @@ struct GameOptionsWindow : Window {
_video_hw_accel = !_video_hw_accel;
ShowErrorMessage(STR_GAME_OPTIONS_VIDEO_ACCELERATION_RESTART, INVALID_STRING_ID, WL_INFO);
this->SetWidgetLoweredState(WID_GO_VIDEO_ACCEL_BUTTON, _video_hw_accel);
#ifndef __APPLE__
this->SetWidgetDisabledState(WID_GO_VIDEO_VSYNC_BUTTON, !_video_hw_accel);
#endif
this->SetDirty();
break;
case WID_GO_VIDEO_VSYNC_BUTTON:
if (!_video_hw_accel) break;
_video_vsync = !_video_vsync;
VideoDriver::GetInstance()->ToggleVsync(_video_vsync);
this->SetWidgetLoweredState(WID_GO_VIDEO_VSYNC_BUTTON, _video_vsync);
this->SetDirty();
break;
@ -598,6 +611,11 @@ struct GameOptionsWindow : Window {
this->SetWidgetLoweredState(WID_GO_FULLSCREEN_BUTTON, _fullscreen);
this->SetWidgetLoweredState(WID_GO_VIDEO_ACCEL_BUTTON, _video_hw_accel);
#ifndef __APPLE__
this->SetWidgetLoweredState(WID_GO_VIDEO_VSYNC_BUTTON, _video_vsync);
this->SetWidgetDisabledState(WID_GO_VIDEO_VSYNC_BUTTON, !_video_hw_accel);
#endif
bool missing_files = BaseGraphics::GetUsedSet()->GetNumMissing() == 0;
this->GetWidget<NWidgetCore>(WID_GO_BASE_GRF_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_GRF_STATUS, STR_NULL);
@ -647,7 +665,10 @@ static const NWidgetPart _nested_game_options_widgets[] = {
NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_RESOLUTION, STR_NULL), SetPadding(0, 0, 2, 0),
NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_REFRESH_RATE, STR_NULL), SetPadding(0, 0, 2, 0),
NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_FULLSCREEN, STR_NULL), SetPadding(0, 0, 2, 0),
NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_VIDEO_ACCELERATION, STR_NULL),
NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_VIDEO_ACCELERATION, STR_NULL), SetPadding(0, 0, 2, 0),
#ifndef __APPLE__
NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_VIDEO_VSYNC, STR_NULL),
#endif
EndContainer(),
NWidget(NWID_VERTICAL),
NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_RESOLUTION_DROPDOWN), SetMinimalSize(100, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_RESOLUTION_TOOLTIP), SetFill(1, 0), SetPadding(0, 0, 2, 0),
@ -656,10 +677,16 @@ static const NWidgetPart _nested_game_options_widgets[] = {
NWidget(NWID_SPACER), SetMinimalSize(1, 0), SetFill(1, 0),
NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_GO_FULLSCREEN_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_FULLSCREEN_TOOLTIP),
EndContainer(),
NWidget(NWID_HORIZONTAL),
NWidget(NWID_HORIZONTAL), SetPadding(0, 0, 2, 0),
NWidget(NWID_SPACER), SetMinimalSize(1, 0), SetFill(1, 0),
NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_GO_VIDEO_ACCEL_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_VIDEO_ACCELERATION_TOOLTIP),
EndContainer(),
#ifndef __APPLE__
NWidget(NWID_HORIZONTAL),
NWidget(NWID_SPACER), SetMinimalSize(1, 0), SetFill(1, 0),
NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_GO_VIDEO_VSYNC_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_VIDEO_VSYNC_TOOLTIP),
EndContainer(),
#endif
EndContainer(),
EndContainer(),
EndContainer(),

6
src/table/misc_settings.ini
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@ -77,6 +77,12 @@ var = _video_hw_accel
def = true
cat = SC_BASIC
[SDTG_BOOL]
name = ""video_vsync""
var = _video_vsync
def = false
cat = SC_BASIC
[SDTG_OMANY]
name = ""support8bpp""
type = SLE_UINT8

9
src/video/sdl2_opengl_v.cpp
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@ -70,8 +70,6 @@ const char *VideoDriver_SDL_OpenGL::Start(const StringList &param)
SDL_GetWindowSize(this->sdl_window, &w, &h);
this->ClientSizeChanged(w, h, true);
SDL_GL_SetSwapInterval(GetDriverParamBool(param, "vsync") ? 1 : 0);
return nullptr;
}
@ -91,6 +89,11 @@ void VideoDriver_SDL_OpenGL::DestroyContext()
}
}
void VideoDriver_SDL_OpenGL::ToggleVsync(bool vsync)
{
SDL_GL_SetSwapInterval(vsync);
}
const char *VideoDriver_SDL_OpenGL::AllocateContext()
{
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
@ -107,6 +110,8 @@ const char *VideoDriver_SDL_OpenGL::AllocateContext()
this->gl_context = SDL_GL_CreateContext(this->sdl_window);
if (this->gl_context == nullptr) return "SDL2: Can't active GL context";
ToggleVsync(_video_vsync);
return OpenGLBackend::Create(&GetOGLProcAddressCallback);
}

2
src/video/sdl2_opengl_v.h
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@ -29,6 +29,8 @@ public:
bool HasAnimBuffer() override { return true; }
uint8 *GetAnimBuffer() override { return this->anim_buffer; }
void ToggleVsync(bool vsync) override;
const char *GetName() const override { return "sdl-opengl"; }
protected:

1
src/video/video_driver.cpp
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@ -21,6 +21,7 @@
#include "video_driver.hpp"
bool _video_hw_accel; ///< Whether to consider hardware accelerated video drivers.
bool _video_vsync; ///< Whether we should use vsync (only if _video_hw_accel is enabled).
void VideoDriver::GameLoop()
{

7
src/video/video_driver.hpp
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@ -28,6 +28,7 @@ extern std::vector<Dimension> _resolutions;
extern Dimension _cur_resolution;
extern bool _rightclick_emulate;
extern bool _video_hw_accel;
extern bool _video_vsync;
/** The base of all video drivers. */
class VideoDriver : public Driver {
@ -66,6 +67,12 @@ public:
*/
virtual bool ToggleFullscreen(bool fullscreen) = 0;
/**
* Change the vsync setting.
* @param vsync The new setting.
*/
virtual void ToggleVsync(bool vsync) {}
/**
* Callback invoked after the blitter was changed.
* @return True if no error.

17
src/video/win32_v.cpp
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@ -1290,7 +1290,6 @@ const char *VideoDriver_Win32OpenGL::Start(const StringList &param)
if (BlitterFactory::GetCurrentBlitter()->GetScreenDepth() == 0) return "Only real blitters supported";
Dimension old_res = _cur_resolution; // Save current screen resolution in case of errors, as MakeWindow invalidates it.
this->vsync = GetDriverParamBool(param, "vsync");
LoadWGLExtensions();
@ -1335,6 +1334,15 @@ void VideoDriver_Win32OpenGL::DestroyContext()
}
}
void VideoDriver_Win32OpenGL::ToggleVsync(bool vsync)
{
if (_wglSwapIntervalEXT != nullptr) {
_wglSwapIntervalEXT(vsync);
} else if (vsync) {
DEBUG(driver, 0, "OpenGL: Vsync requested, but not supported by driver");
}
}
const char *VideoDriver_Win32OpenGL::AllocateContext()
{
this->dc = GetDC(this->main_wnd);
@ -1363,12 +1371,7 @@ const char *VideoDriver_Win32OpenGL::AllocateContext()
}
if (!wglMakeCurrent(this->dc, rc)) return "Can't active GL context";
/* Enable/disable Vsync if supported. */
if (_wglSwapIntervalEXT != nullptr) {
_wglSwapIntervalEXT(this->vsync ? 1 : 0);
} else if (vsync) {
DEBUG(driver, 0, "OpenGL: Vsync requested, but not supported by driver");
}
this->ToggleVsync(_video_vsync);
this->gl_rc = rc;
return OpenGLBackend::Create(&GetOGLProcAddressCallback);

3
src/video/win32_v.h
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@ -138,12 +138,13 @@ public:
bool HasAnimBuffer() override { return true; }
uint8 *GetAnimBuffer() override { return this->anim_buffer; }
void ToggleVsync(bool vsync) override;
const char *GetName() const override { return "win32-opengl"; }
protected:
HDC dc; ///< Window device context.
HGLRC gl_rc; ///< OpenGL context.
bool vsync; ///< Enable VSync?
uint8 *anim_buffer; ///< Animation buffer from OpenGL back-end.
uint8 GetFullscreenBpp() override { return 32; } // OpenGL is always 32 bpp.

1
src/widgets/settings_widget.h
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@ -35,6 +35,7 @@ enum GameOptionsWidgets {
WID_GO_BASE_MUSIC_DESCRIPTION = WID_GO_BASE_MUSIC_TEXTFILE + TFT_END, ///< Description of selected base music set.
WID_GO_FONT_ZOOM_DROPDOWN, ///< Dropdown for the font zoom level.
WID_GO_VIDEO_ACCEL_BUTTON, ///< Toggle for video acceleration.
WID_GO_VIDEO_VSYNC_BUTTON, ///< Toggle for video vsync.
WID_GO_REFRESH_RATE_DROPDOWN, ///< Dropdown for all available refresh rates.
};

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