Messages

1

General discussions / Re: Slow performance with Raspberry PI 3B

« on: October 20, 2019, 11:31:19 am »

Okay, after advise on IRC I compiled master version. Performance jumped directly to min 25  fps! I needed only replace Quads with TriangleFan. Thanks.

2

General discussions / Re: Slow performance with Raspberry PI 3B

« on: October 19, 2019, 11:41:40 pm »

I managed to compile and install SFML with OpenGL ES, game compiles but crashing on the linking, any tips?:

[  2%] Linking CXX executable DeerPortal
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::SensorImpl::cleanup()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::SensorImpl::update()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::JoystickImpl::getCapabilities() const'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::InputImpl::getTouchPosition(unsigned int, sf::Window const&)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::SensorImpl::setEnabled(bool)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::SensorImpl::initialize()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::JoystickImpl::update()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::CursorImpl::~CursorImpl()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::JoystickImpl::isConnected(unsigned int)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::WindowImplRPi::WindowImplRPi(unsigned long)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::WindowImplRPi::WindowImplRPi(sf::VideoMode, sf::String const&, unsigned long, sf::ContextSettings const&)'                                        
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::InputImpl::setMousePosition(sf::Vector2<int> const&, sf::Window const&)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::InputImpl::setMousePosition(sf::Vector2<int> const&)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::VideoModeImpl::getFullscreenModes()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::InputImpl::isTouchDown(unsigned int)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::CursorImpl::loadFromPixels(unsigned char const*, sf::Vector2<unsigned int>, sf::Vector2<unsigned int>)'                                            
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::JoystickImpl::close()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::JoystickImpl::JoystickImpl()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::InputImpl::setVirtualKeyboardVisible(bool)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::JoystickImpl::initialize()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::VideoModeImpl::getDesktopMode()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::InputImpl::getMousePosition(sf::Window const&)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::ClipboardImpl::getString()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::SensorImpl::close()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::SensorImpl::isAvailable(sf::Sensor::Type)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::InputImpl::getMousePosition()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::InputImpl::isMouseButtonPressed(sf::Mouse::Button)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::JoystickImpl::cleanup()'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::InputImpl::getTouchPosition(unsigned int)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::SensorImpl::open(sf::Sensor::Type)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::InputImpl::isKeyPressed(sf::Keyboard::Key)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::JoystickImpl::open(unsigned int)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::ClipboardImpl::setString(sf::String const&)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::JoystickImpl::getIdentification() const'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::CursorImpl::loadFromSystem(sf::Cursor::Type)'
/usr/bin/ld: /home/pi/SFML/lib/libsfml-window.so: undefined reference to `sf::priv::CursorImpl::CursorImpl()'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/DeerPortal.dir/build.make:584: DeerPortal] Error 1
make[1]: *** [CMakeFiles/Makefile2:73: CMakeFiles/DeerPortal.dir/all] Error 2
make: *** [Makefile:152: all] Error 2
 

3

General discussions / Re: Slow performance with Raspberry PI 3B

« on: October 19, 2019, 02:38:22 pm »

So, I checked and actually it was using default OpenGL - it seems a default libfsfml packages configuration on Raspbian.

I am trying to compile sfml with OpenGL ES, but for now it is crashing:

[ 16%] Built target sfml-system
Scanning dependencies of target sfml-window
[ 17%] Building CXX object src/SFML/Window/CMakeFiles/sfml-window.dir/GlContext.cpp.o
In file included from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/GlContext.cpp:73:
/tmp/libsfml-2.5.1+dfsg/src/SFML/Window/EglContext.hpp:165:12: error: ‘XVisualInfo’ does not name a type
     static XVisualInfo selectBestVisual(::Display* display, unsigned int bitsPerPixel, const ContextSettings& settings);
            ^~~~~~~~~~~
make[2]: *** [src/SFML/Window/CMakeFiles/sfml-window.dir/build.make:102: src/SFML/Window/CMakeFiles/sfml-window.dir/GlContext.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:176: src/SFML/Window/CMakeFiles/sfml-window.dir/all] Error 2
make: *** [Makefile:130: all] Error 2
 

I found XVisualInfo in several places in system libs:

/usr/include/X11/Xutil.h:} XVisualInfo;
/usr/include/X11/Xutil.h:extern XVisualInfo *XGetVisualInfo(
/usr/include/X11/Xutil.h:    XVisualInfo*       /* vinfo_template */,
/usr/include/X11/Xutil.h:    XVisualInfo*       /* vinfo_return */
/usr/include/GL/glx.h:extern XVisualInfo* glXChooseVisual( Display *dpy, int screen,
/usr/include/GL/glx.h:extern GLXContext glXCreateContext( Display *dpy, XVisualInfo *vis,
/usr/include/GL/glx.h:extern GLXPixmap glXCreateGLXPixmap( Display *dpy, XVisualInfo *visual,
/usr/include/GL/glx.h:extern int glXGetConfig( Display *dpy, XVisualInfo *visual,
/usr/include/GL/glx.h:extern XVisualInfo *glXGetVisualFromFBConfig( Display *dpy,
/usr/include/GL/glx.h:typedef XVisualInfo * (* PFNGLXGETVISUALFROMFBCONFIGPROC) (Display *dpy, GLXFBConfig config);
/usr/include/GL/glxext.h:typedef XVisualInfo *( *PFNGLXGETVISUALFROMFBCONFIGPROC) (Display *dpy, GLXFBConfig config);
/usr/include/GL/glxext.h:XVisualInfo *glXGetVisualFromFBConfig (Display *dpy, GLXFBConfig config);
/usr/include/GL/glxext.h:typedef GLXPixmap ( *PFNGLXCREATEGLXPIXMAPMESAPROC) (Display *dpy, XVisualInfo *visual, Pixmap pixmap, Colormap cmap);
/usr/include/GL/glxext.h:GLXPixmap glXCreateGLXPixmapMESA (Display *dpy, XVisualInfo *visual, Pixmap pixmap, Colormap cmap);
/usr/include/GL/glxext.h:typedef XVisualInfo *( *PFNGLXGETVISUALFROMFBCONFIGSGIXPROC) (Display *dpy, GLXFBConfigSGIX config);
/usr/include/GL/glxext.h:typedef GLXFBConfigSGIX ( *PFNGLXGETFBCONFIGFROMVISUALSGIXPROC) (Display *dpy, XVisualInfo *vis);
/usr/include/GL/glxext.h:XVisualInfo *glXGetVisualFromFBConfigSGIX (Display *dpy, GLXFBConfigSGIX config);
/usr/include/GL/glxext.h:GLXFBConfigSGIX glXGetFBConfigFromVisualSGIX (Display *dpy, XVisualInfo *vis);
/usr/include/glvnd/libglxabi.h:     * for the XVisualInfo or GLXFBConfig that the context is created from.
 

but nothing in the special Raspberry drivers.

Including X11/Xutil.h results with:

[ 17%] Building CXX object src/SFML/Window/CMakeFiles/sfml-window.dir/GlContext.cpp.o
[ 18%] Building CXX object src/SFML/Window/CMakeFiles/sfml-window.dir/WindowImpl.cpp.o
[ 19%] Building CXX object src/SFML/Window/CMakeFiles/sfml-window.dir/EglContext.cpp.o
In file included from /usr/include/X11/Xlib.h:44,
                 from /usr/include/X11/Xutil.h:53,
                 from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/EGLCheck.hpp:34,                                                                                                                                                          
                 from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/EglContext.hpp:33,                                                                                                                                                        
                 from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/EglContext.cpp:29:                                    
/tmp/libsfml-2.5.1+dfsg/include/SFML/Window/WindowStyle.hpp:40:9: error: expected identifier before numeric constant
         None       = 0,      ///< No border / title bar (this flag and all others are mutually exclusive)
         ^~~~                                                                                                
/tmp/libsfml-2.5.1+dfsg/include/SFML/Window/WindowStyle.hpp:40:9: error: expected ‘}’ before numeric constant
In file included from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/Unix/CursorImpl.hpp:34,
                 from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/CursorImpl.hpp:39,
                 from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/WindowImpl.hpp:35,
                 from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/EglContext.cpp:30:        
/tmp/libsfml-2.5.1+dfsg/include/SFML/Window/WindowStyle.hpp:39:5: note: to match this ‘{’
     {
     ^                                          
In file included from /usr/include/X11/Xlib.h:44,
                 from /usr/include/X11/Xutil.h:53,                            
                 from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/EGLCheck.hpp:34,  
                 from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/EglContext.hpp:33,
                 from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/EglContext.cpp:29:                                                                                                                                                      
/tmp/libsfml-2.5.1+dfsg/include/SFML/Window/WindowStyle.hpp:40:9: error: expected unqualified-id before numeric constant                                                                                                              
         None       = 0,      ///< No border / title bar (this flag and all others are mutually exclusive)
         ^~~~                                                                        
In file included from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/Unix/CursorImpl.hpp:34,
                 from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/CursorImpl.hpp:39,
                 from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/WindowImpl.hpp:35,
                 from /tmp/libsfml-2.5.1+dfsg/src/SFML/Window/EglContext.cpp:30:                              
/tmp/libsfml-2.5.1+dfsg/include/SFML/Window/WindowStyle.hpp:50:1: error: expected declaration before ‘}’ token
 } // namespace sf
 ^                                                                                                                                                                                                                                    
make[2]: *** [src/SFML/Window/CMakeFiles/sfml-window.dir/build.make:271: src/SFML/Window/CMakeFiles/sfml-window.dir/EglContext.cpp.o] Error 1                                                                                          
make[1]: *** [CMakeFiles/Makefile2:176: src/SFML/Window/CMakeFiles/sfml-window.dir/all] Error 2
make: *** [Makefile:130: all] Error 2  
 

I will keep looking, but any help appreciated.

4

General discussions / Slow performance with Raspberry PI 3B

« on: October 18, 2019, 11:12:40 pm »

Hello,

I have recently updated Raspbian on my Pi3B, and I have noticed that libsfml is included in the repositories.

I have managed to compile my project pretty much without any hustle, but then I noticed dramatic decrease of performance - game is not responsive at all, latency events/mouse clicks can be around 0.5s, and it pushed me to measure frames - and I got ~5fps... On laptop the game has few hundres fps, on workstation with Nvidia 1030 2-3k.

And this is not some sophisticated game - pretty simple board game, with main code happening here: https://github.com/deerportal/deerportal/blob/master/src/game.cpp

Does someone have experience with porting sfml projects to Pi and how they work?

Any help/comments appreciated.

bluszcz

5

Graphics / Re: Array of shapes

« on: October 18, 2019, 11:05:07 pm »

Long time, but, since I am optimizing now my game - I was trying to do so by changing way of iterating.

So, due to my Visual Studio profiler - when using auto c++11 vs using index, auto construction is slower by about 5% (and I fps are going down from ~2000 to 1500) - I am drawing about 120  sprites...

Using the STL, you can have an array (or vector) of objects, thus:

class Alien; // define your Alien

std::vector<Alien> aliens(20); // create 20 aliens (this could instead be just a vector of sf::Sprites or sf::RectangleShapes or whatever if the only thing the aliens need is their appearance)

// ...

// draw all aliens
for (auto& alien : aliens)
    window.draw(alien);

If you're unable to use C++11 (or later) for whatever reason, to iterate the aliens (to draw them as above), you'd need to access them via iterator:

for (std::vector<Alien>::iterator it = aliens.begin(); it != aliens.end(); ++it)
    window.draw(*it);

or index:

for (unsigned int i = 0u; i < aliens.size(); ++i)
    window.draw(aliens[i]);

For more information about some of the STL containers (e.g. vectors), have a look at the following pages:
VECTOR:
http://www.cplusplus.com/reference/vector/vector/
http://en.cppreference.com/w/cpp/container/vector
ARRAY:
http://www.cplusplus.com/reference/array/array/
http://en.cppreference.com/w/cpp/container/array