Glfw high dpi display

Glfw high dpi display. elmindreda added a commit that referenced this issue on Aug 31, 2017. Fixes # . For each widget, you will see the corresponding demo code (in C++. I can’t understand how it work. While some can only be polled, like time, or only received via callbacks, like scrolling, many provide both callbacks and polling. Building applications. 0 [Open3D ERROR] Failed to initialize GLFW [Open3D ERROR] GLFW Error: The GLFW library is not initialized Apr 15, 2019 · Version 3. local:0 This uses mDNS to obtain the correct address, per my write-up on Stack Overflow on the topic. Dec 22, 2021 · Step 3: Under Settings, click Change High DPI Settings. If so it already exists in this library (at least for all SDL2/OpenGL and GLFW/OpenGL examples out of the box and the others can be easily converted). GLFW natively supports Windows, macOS and Linux and other Unix-like systems. What should be done is query the xrdb database to get the Xft. WARNING: This reports the DPI that the hardware reports, and it is not always reliable! It is almost always better to use SDL_GetWindowSize () to find the window size, which might be in logical points instead of pixels, and Apr 3, 2023 · E. 3 that will work as expected on all platforms. Hello everyone, I am developing a gui application with glfw and this application must support high dpi devices. GLFW now supports high-DPI monitors on both Windows and OS X, giving windows full resolution framebuffers where other UI elements are scaled up. Nov 10, 2023 · I use to hide the background (black square) glfwWindowHint(GLFW_TRANSPARENT_FRAMEBUFFER, GLFW_TRUE); I’m using roundedReact to specify the size of the window, I want to render a picture on top, but the picture shows everything through without noticing the square Oct 24, 2016 · As display technology has improved over time, the cutting edge has moved towards having more pixels packed into each physical square inch, and away from simply making displays physically larger. 2 Click/tap on Display on the left side, and click/tap on the Advanced scaling settings link under Scale and layout on the right side. I went looking for ways to find the maximum resolution of the available monitor, which glfw provides using the function glfwGetVideoModes(GLFWwindow*, int);. This results in the application appearing blurry. So, for example, a 100x100 window, will have a drawable of 100x100 and a window size on screen of 100x100, and although SDL_GetDisplayDPI returns 2, our DisplayFramebufferScale is now 1: everything is rendered at high DPI and we are happy, with 1:1 pixels on the screen. These work with pixels, while the rest of the GLFW API works with screen coordinates. GLFW is an Open Source, multi-platform library for OpenGL, OpenGL ES and Vulkan application development. GLFW. 0. Query DPI on window resize as well Consider a ray tracer written in OpenGL and using GLFW as a window toolkit. 2. High-DPI support. Touch and keyboard events. GLFW enables Per Monitor scaling when available, falling back to System Aware for older Windows versions. The last number is the X11 screen number. GLFWwindow * window = glfwCreateWindow (640, 480, "My Title", glfwGetPrimaryMonitor (), NULL); May 23, 2023 · See Microsoft Support for View display settings in Windows 10. DisplaySize = {resolution_x, resolution_y} / io. FrankRuben mentioned this issue on Aug 30, 2018. Jan 4, 2018 · glfwGetFramebufferSize and glfwGetWindowSize return the same values, even though I have a high-dpi display with scaling factor 2. Jun 23, 2017 · GLFW explains both coordinate systems in there documentation here and here. In more detail: On Windows, GLFW calls SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE). Projects Queue. The matching of GLFW monitors against screens by area in GLFW uses Xinerama screens, not X11 screens. The application will create a window and OpenGL context, render a rotating triangle and exit when the user closes the window or presses Escape. . Code; enhancement Feature suggestions and PRs High DPI High resolution display specific Windows Win32 Jul 26, 2021 · Issue solved on commit a422e39. dpi resource. const GLFWvidmode * mode = glfwGetVideoMode (monitor); The resolution of a video mode is specified in screen coordinates, not pixels. While SFML currently has partial support for high-DPI displays, their are some issues that cannot be resolved without making SFML's API DPI aware. Render scene to full-resolution FBO, blit FBO to the half High-DPI support. Putting it together. It is the user's preferred monitor and is usually the one with global UI elements like task bar or menu bar. You probably wouldn't want to "sleep" just for framerate anyway. This guide will introduce a few of the most commonly used functions, but there are many more. If upscaling is explicitely disabled, either via a manifest entry or by manually setting it in the properties of the executable in Windows Explorer, all scenarios (scale != 100% May 19, 2017 · Usually desktop environments/startup scripts, set Xft. dpi to a simple multiple of 96. So for my settings I get ~2x the precision from WM_INPUT. The mouse I used for the test has 1000dpi resolution, which is GLFWvidmode * modes = glfwGetVideoModes (monitor, &count); To get the current video mode of a monitor call glfwGetVideoMode. I have only a single display, and I am using GNOME 3. Mar 17, 2021 · SDL_GetDrawableSize = 100, 100. A high-DPI screen could have a physical pixel resolution of 3840x2160, but on this screen the OS will display widgets with a scaling factor of 200%, so that widgets do not look too small on it. Some parameters may be omitted by setting them to zero, which will result in GLFW either using a default value, or the related functionality to be disabled. The Surface Pro 4, for example, has roughly 192 Feb 1, 2024 · Dear ImGui demo (and manual) Dear ImGui comes with a complete demo. To achieve this, glfwGetFramebufferSize and glfwSetFramebufferSizeCallback have been added. Oct 5, 2020 · Basically the idea to cap the framerate in each Display::present () call. May be it would be nice in the future to add a bool glfwDetectRetina () in the API :) I do not think this would be worth it, given that glfwGetWindowContentScale() already exists, which is cross-platform compatible. Step 5: Select Application GLFW uses Semantic Versioning. This could cause you to miss input messages, or run slower than 60fps if your program is running slow. I'm looking at some examples, and on my Surface Book 2 the text rendered is very tiny, but looks fine on a regular display. For instance, if width and height are both zero, GLFW will use a window resolution of 640x480. window = glfwCreateWindow (SCREENWIDTH, SCREENHEIGHT, “name”, glfwGetPrimaryMonitor (), NULL); Jul 30, 2006 · Hello, I try to use glfwOpenWindowHint (GLFW_REFRESH_RATE, X); without success (under Windows). This will essentially enable vsync, which will run your program at the same fps as your monitor's refresh rate. If that function is not available, it calls SetProcessDPIAware. Once receiving the WM_DPICHANGED message, reload fonts and resize style metrics according to DPI scaling. It is likely set to values higher than 1 on high-dpi screens because it accesses the OS’s screen scale using glfwGetMonitorContentScale(). Getting started. On Windows 8. This guide takes you through writing a simple application using GLFW 3. Render imgui with io. See full list on glfw. 2: Full Support for High-DPI Displays and DPI Awareness. LWJGL 3 uses GLFW, which supports HiDPI on both Windows and macOS. 1 Open Settings, and click/tap on the System icon. Note that this assumes that you are using the built-in WSL DNS resolver. To create a full screen window, you need to specify which monitor the window should use. Garbled text output when unloding font #638. But after some research I found that Windows uses default dpi as 96 and Apple uses 72. Jun 10, 2021 · One can run a GLFW program on any existing X11 screen by setting the DISPLAY environment variable, which is typically set to :0. There are some key points: The application must High DPI aware. GLFW now has an experimental EGL context creation back end that can be selected through CMake options. After blocking until the next Vsync, glfw waits until the second Vsync to show the image, producing 0. Context guide. A failure of this function usually means that either no DPI information is available or the displayIndex is out of range. It supposedly finds all available displays for a monitor Version 3. glfwGetWindowSize(&width, &height); Feb 23, 2024 · Guides. Public Functions. Hi, When the mouse cursor is not disabled (normal), the mouse position works with sub-virtual-pixel which I guess gives the precision of the physical pixels. If i try to do this step manually by making the window with GLFW_RESIZABLE than the framebuffer_size_callback seems to be reducing the size of the framebuffer. 4. Dependencies for Linux and X11. first you need two variables to store your width and height. 2s of delay between input and display, using our example. Oct 28, 2015 · zajo wrote on Wednesday, October 28, 2015: Hello, I can’t seem to get windowed fullscreen or fullscreen working on windows 8 where different monitors have different scaling. Callbacks are more work to use than polling but is less CPU intensive and guarantees that you do not miss state changes. Represents a display surface (i. The primary monitor is returned by glfwGetPrimaryMonitor. I have run my software on msys64/mingw, on Linux Debian, on Raspberry Pi 4B but when I moved the same software to Debian 12. Jan 15, 2024 · High-DPI with HelloImGui and ImGui Bundle. Thanks. @thewoz. GLFWmonitor * primary = glfwGetPrimaryMonitor (); You can retrieve all currently connected monitors with glfwGetMonitors. I don’t have a retina device, but here’s some guidance: GLFW_COCOA_RETINA_FRAMEBUFFER is only required if you don’t want the higher resolution framebuffer. GLFW 3. Screen(const Vector2i & size, const std::string & caption, bool resizable = true, bool fullscreen = false, int colorBits = 8 Apr 16, 2016 · I found a graphics course website that is open (like MIT's OpenCourseWare) and I'm try to setup my machine for it I am using my windows machine to remotely access a gnu server. The secondary monitor of our computer was set by my colleague like this: Win10 settings → display → scale and layout → 300% (recommended) And I was not allowed to reset the ratio from 300% to 100%, but I hope to show m…. When I have a window open on my 1920x1080 display and move it to my 4k display the glfwWindowScaleCallback triggers, however if I move it to the display by snapping it fullscreen the callback does not fire and the DPI remains to low. I've used DPI awareness with many other opengl applications successfully and that worked fine for properly scaling the Windows window itself, so unless I'm missing something Windows DPI API doesn't fix imgui. Nov 3, 2022 · When I saw GLFW's implementation I started questioning whether we really need to have a framebuffer and window that have seperate sizes like in SDL: while GLFW has a separate framebuffer size, it keeps the same size as the window by default. Vulkan guide. I do not understand why the frame buffer is 1650 x 1050. GLFWwindow * window = glfwCreateWindow (640, 480, "My Title", glfwGetPrimaryMonitor (), NULL); High-DPI support. It looks like that nothing is being capped at all in fact the fps is 4000+. Current SFML behavior Nov 4, 2018 · Retrieving monitors. 1 and later, this will cause both the window and its framebuffer to resize when it is moved to a monitor with a different DPI. Font configuration. org To create a full screen window, you need to specify which monitor the window should use. 0, the full screen mode produces a smaller image within the screen. If you have a demanding application which is I'm getting to the point where I want to share it with other developers, so I cannot keep hard coding the screen resolution in. Image scale only controls how large the images appear on the screen. GLFWwindow * window = glfwCreateWindow (640, 480, "My Title", glfwGetPrimaryMonitor (), NULL); May 14, 2017 · Experimentation on my system with my mouse settings, with GLFW_CURSOR_DISABLED a vertical motion of ~25mm gives me a delta of 1000 whereas I need a vertical motion of 50mm to get the same delta without GLFW_CURSOR_DISABLED. The best solution would be if GLFW made screen coordinates always relative to 100% display scaling regardless of the scaling factor of the primary display, and simply make the frame buffer bigger for higher scaling displays. Add content scale queries. Todo Mar 10, 2021 · On Windows 10, I have a PC with 2 monitors of different resolutions. Fixes #32 vikramkapoor mentioned this issue Jul 14, 2019 . The text was updated successfully, but these errors were encountered: elmindreda added enhancement Feature suggestions and PRs High DPI High resolution display specific macOS Dec 22, 2015 · GLFW now supports high-DPI monitors on both Windows and OS X, giving windows full resolution framebuffers where other UI elements are scaled up. (monitor refresh rate, measured in hertz)/(number entered) = (application fps) #The Apr 4, 2023 · Unfortunately I do not have a retina device to test on, that’s why example code would be helpful. Sep 12, 2023 · I am testing my game on a Mac with a resolution of 2560 x1600 and am getting some strange behaviour. Read the part "C++ / Python porting advices" to see how easy it is For example, I enabled per monitor DPI awareness and played with different DPI values, but it didn't scale imgui. 3 adds support to get DPI scaling factor but Nov 26, 2019 · Basically the window should be displayed in the size of 1920 / 2 X 1080 / 2 but the framebuffer should be of size 1920 X 1080. I. Not 100% sure!I PR that as a proposal: I let you decide if it's a good move Checklist make all test runs OK at my side (debian) All changes meet libigl style-guidelines. 3 is available for download. For example, on Ubuntu and other distributions based on Debian GNU/Linux, you need to install the xorg-dev and libgl1-mesa-dev packages. This guide takes you through writing a small application using GLFW 3. DPI unaware applications render at a fixed DPI value of 96 (100%). This flexibility ensures that a high resolution (HiDPI) laptop works seamlessly alongside a lower-resolution desktop monitor, or vice versa. To run this demo in your browser, launch ImGui Manual. In my experimentation with glfwSwapInterval() whatever number you put in this function will result in. For example on my 4K display, it is set to 192, while the actual physical dpi as reported by xrandr is 160. 2) Render the scene to a texture and use a full screen quad to display that texture. Hi there, I'm new to Raylib, as well as OpenGL, so I wonder if there's a switch that I need to set to support High-Res displays. Apr 3, 2023 · I mistakenly acquired size (in pixel) from video mode: The correct way is to use glfwGetFrameBufferSize. Dec 3, 2021 · Screen: High dpi retina display. Retina / high-DPI support. In most cases, the user's primary monitor is a good choice. DisplayFramebufferScale;. HelloImGui and Dear ImGui Bundle provides a dedicated API for High-DPI handling. The window manager can always override any window size you request, but has Vulkan (GLFW_NO_API) Problem. Accelerometer, magnetometer, gyroscope, and device rotation (iOS/Android only) Events for application state and context loss. Whenever these applications are run on a screen with a display scale greater than 96 DPI, Windows will stretch the application bitmap to the expected physical size. dougbinks April 5, 2023, 11:06am 2. e. Dec 29, 2015 · If the fullscreen window uses native resolution, GLFW succeeds in creating it and having the input focus work correctly for both 100% scale and scale != 100%. 0 # or export DISPLAY=:0 Windows 10 using mDNS with WSL's DNS Resolver: I usually use and recommend: export DISPLAY=$(hostname). env DISPLAY=:0. Tip. Is there a way using GLFW to detect which color format the display is set to? dougbinks June 26, 2022, 11:25am 2. This trend has increased the dots per inch (DPI) of the displays on the market today. This essentially renders imgui at 96 DPI. 97:0. After that I multiply it by content scale. Not easy to solve GLFW 3. /my_game. Not that I’m aware of - indeed searching for how to do this on Windows/Linux/MacOSX proved to reveal that this is a fairly complex issue for such a simple question. Previously, I used. Windows is driving it at 2560x4320px (the RGB subpixels are full monochrome pixels). Display scale controls how large the GUI widgets and the images appear on the screen. GLFWwindow * window = glfwCreateWindow (640, 480, "My Title", glfwGetPrimaryMonitor (), NULL); GLFW tries to open a window that best matches the requested parameters. HiDPI (High Dots Per Inch) displays, also known by Apple's "Retina Display" marketing name, are screens with a high resolution in a relatively small format. Jan 22, 2019 · What I would use would be glfwSwapInterval(1). 4 released Posted on February 23, 2024. 5px etc. GLFW provides both window size and framebuffer size callbacks. On modern Windows it will use per-monitor effective DPI. If I drag my glfw created window from first to second monitor it suddenly changes size when it gets exactly half way onto the second monitor. For more information about monitors, see the Multi-monitor guide. But when the cursor is disabled, the precision is only of a virtual pixel, which gives a bad result for my 3D first-person game. Currently I can query the device size in millimeters and calculate raw dpi of the device. And this is meat and bones of the trick. 1k. There are basically 2 options to display the ray-traced image. glfwSetWindowPos(width / 2, height / 2); and as a bonus you can then call. GLFW provides many kinds of input. Work Around. Is this a bug, or am I doing something wrong? That sounds like per-monitor DPI scaling. Closed. Dec 29, 2019 · I'd like my GUI to properly adapt to high-DPI screens, and am unsure of how to do this right. To list all available monitors (active and inactive): hyprctl monitors all Monitors are positioned on a virtual May 4, 2016 · Because what I personally read out of your description is to have the correct scaling between normal and High DPI screen. 28 under Wayland. DisplayFramebufferScale = 1. Remember to handling WM_DPICHANGED message. In short, window coordinates are relative to the monitor and/or the window and are given in artificial units that do not necessarily correspond to real screen pixels. Monitor guide. I have tried the example offscreen. Compiling GLFW. data->ScaleClipRects(data->FramebufferScale); obviously. See the reference documentation for the lifetime of the returned pointer. To compile GLFW for X11, you need to have the X11 and OpenGL header packages installed, as well as the basic development tools like GCC and make. Introduction to the API. Check the box next to Override High DPI Scaling Behavior. Mar 16, 2021 · High DPI changing handling. Display on Retina device occupies lower-left quad of screen #168. Texture resources (font atlas textures) are also need to reload. Moving from GLFW 2 to 3. From what I know of OpenGL, both width and height must be handled to resize window to frame. GLFWwindow * window = glfwCreateWindow (640, 480, "My Title", glfwGetPrimaryMonitor (), NULL); Dec 29, 2015 · GLFW_HIDPI_RESIZE specifies whether the windowed mode window will resize either its framebuffer or both itself and the framebuffer when it is moved to a monitor with a significantly different DPI. This option is only available starting with Windows 10 build 15019. g. I have 3 monitors, 2 are 1920x1080, one is 2560x1600 (but physically smaller, a laptop screen). raysan5 mentioned this issue on Jul 31, 2016. Monitor documentation reference: Jul 29, 2022 · To Set Custom DPI Scaling Level for All Displays in Settings. window = 4096x2304, FB = double, window = 2304x1296, FB = 4096x2304. This is a smaller feature release, as a basis for future work. The frame buffer size reported by glfwGetFramebufferSize is always 1650 x 1050, regardless of which resolution I set with glfwCreateWindow, or if I set GLFW_COCOA_RETINA_FRAMEBUFFER or not. Jan 26, 2021 · papr commented on Feb 9, 2021. Here is a list of all related documentation pages: Release notes for version 3. Class Documentation ¶. 4 is available for download. This guarantees source and binary backward compatibility with earlier minor versions of the API. I've done some research and compiled a list of links to how this is handled on various systems / libraries: Processing events. Introduction. a 3840x2160 (4K) display can work as a huuuuge display with the screen real estate of four (normal) FullHD displays. On the “win32_fullscreen. Feb 11, 2014 · glfw / glfw Public. DesiredRefreshRate is > 0 the flag DISPLAYFREQUENCY is added. Notifications Fork 4. GLFWwindow * window = glfwCreateWindow (640, 480, "My Title", glfwGetPrimaryMonitor (), NULL); Nov 20, 2016 · The wiki link above is obsolete, it only applies to LWJGL 2. Mar 28, 2018 · Adds pixel_ratio calculations to the GLFW embedder, so that the sizing of Flutter elements is reasonable on high-DPI monitors. Oct 30, 2020 · This seems what I would expect - the video mode is in screen coordinates and the actual framebuffer is the size of the monitor which is 2x this at 4096 x 2304. Step 4: A second pop-up window appears on the screen. HiDPI. glfwGetVideoMode reports the correct, current mode of 2560x4320. Nov 17, 2021 · I have a Windows PC with an unusual 8k monochrome display attached. GLFWwindow * window = glfwCreateWindow (640, 480, "My Title", glfwGetPrimaryMonitor (), NULL); If DPI scaling was enabled then the drawable area also changes and an SDL_WINDOWEVENT_SIZE_CHANGED event is send to inform you about it. c, but I can only get a 1684*1032 image. If you want to render offscreen at a specific size I would recommend you use framebuffer objects. It should either be 2560x1600, or 1280 x 800 Aug 26, 2021 · Basically, the idea is to be able to change this setting dynamically, to enable scale-to-monitor for regular windows, and disable it for fullscreen borderless windows. When rendering - set up projection matrix at full resolution ({resolution_x, resolution_y}). They are mostly found in high-end laptops and monitors. a full-screen or windowed GLFW window) and forms the root element of a hierarchy of nanogui widgets. I tried following the To create a full screen window, you need to specify which monitor the window should use. 109. The exact behavior of the window size depends on the GLFW version though. « on: December 25, 2014, 04:26:41 am ». 1) Create a RenderBuffer with image and blit this to the default framebuffer. Dec 7, 2023 · Dave-A December 7, 2023, 11:05pm 1. 5k; Star 11. All non-glfw applications on my desktop use 192 as the dpi, not 160. GLFW now supports high-DPI monitors on both Windows and macOS, giving windows full resolution framebuffers where other UI elements are scaled up. If I launch a full screen window, glfwGetFramebufferSize gives me double the numbers. For more information about retrieving monitors, see Retrieving monitors. class Screen : public nanogui:: Widget ¶. Nov 2, 2021 · DPI Unaware. int width, height; then as described on page 14 of the reference. Everything is set up with manual timings in the NVIDIA Control Panel. Not all software behaves well in high-resolution mode yet. But glfwGetVideoModes does not list this mode as one of the available options. It provides a simple, platform-independent API for creating windows, contexts and surfaces, reading input, handling events, etc. So far, I've adapted the SDL2/OpenGL3 sample in the following way: Query (via SDL) both the dimensions and the pixel density of display 0 (which should be the default monitor) Create a window that is 7/8ths of the width and height of that display Aug 25, 2016 · Window size and framebuffer size will continue to be equal on Windows (and X11) but there will be a glfwGetWindowContentScale in 3. So 1sc would equal 1px at 100% display scaling or at 150% display scaling 1sc would equal 1. Each new API comes with a high burden for the maintainer. It adds gamepad input via SDL_GameControllerDB, support for Vulkan on macOS via MoltenVK, better handling of high-DPI and scaling, changing attributes of existing windows, raw mouse motion input, explicit support for joystick hats/dpads, user attention requests, transparent windows and framebuffers (where Dec 11, 2020 · export DISPLAY=:0. Dec 8, 2017 · With double buffering and Vsync, glfw already has the block-until-Vsync behavior as it waits for the buffer to clear up. High-Res displays. When _glfwWin. (see screenshot below) 3 Enter GLFW uses Semantic Versioning. Did you set the GLFW_SCALE_TO_MONITOR window hint? Mar 6, 2024 · I'm trying to visualize some point cloud on my server and display it on my laptop, but I got the following error: [Open3D ERROR] GLFW Error: X11: Failed to open display 10. All is good using either 1080p monitor, but the laptop screen gets a much bigger window that exceeds that screen’s Jun 26, 2022 · ShacharDev June 26, 2022, 9:32am 1. 1 . c” I found the code it change the display mode and probably the refresh rate. This is especially the case when dpi scaling is activated (for example, on Macs with retina display). raysan5 closed this as completed on Jul 26, 2016. It adds runtime platform selection, better support for Wayland, both Wayland and X11 enabled by default, more standard cursor shapes, custom heap allocator support, per-window mouse input passthrough, window title query, a conforming Null Jul 14, 2017 · I have a monitor with max resolution 1600 1050, but I want to output 1920 1080 images. The screen of your MacBook runs at 2880x1800 HiDPI — the screen Jul 14, 2012 · 10. Or in HiDPI mode the screen real estate will be equal to a FullHD display but displayed with four times as many pixels (much sharper text, windows, icons). In addition, you can adjust per-monitor scaling across monitors with different scaling factors. It demonstrates all the widgets, together with an example code on how to use them. General The general config of a monitor looks like this: monitor=name,resolution,position,scale A common example: monitor=DP-1,1920x1080@144,0x0,1 This will make the monitor on DP-1 a 1920x1080 display, at 144Hz, 0x0 off from the top left corner, with a scale of 1 (unscaled). OpenGL ES 2, OpenGL ES 3, and Metal display setup. 3 released Posted on April 15, 2019. Based on this I designed the DPI support to work without much changes to SFML's API. This means that you can drop in a newer version of the library and existing programs will continue to compile and existing binaries will continue to run. Sep 3, 2021 · GLFW helpers return the following values: bug Bug reports and bugfix pull requests High DPI High resolution display specific X11. hy mo bh pv jv uw it va uo qr