gulrak/raylib

A simple and easy-to-use library to enjoy videogames programming

raylib's Issues

[rcore] TakeScreenshot not working on macOS with HighDPI screens

Issue description

void TakeScreenshot(const char *fileName) is using the logical resolution but glfw is actually creating a x2 size frame buffer om retina or high dpi screens. This results in only a quarter of the screen beeing exported in a distorted messed-up way.

Environment

macOS 10.14 and up, any device with high resolution screen

[core] Screenshots and gif recordings on macOS incomplete

ATTENTION: This fork of raylib is not the official version and in no means replacing it, its main purpose is to fix issues that are out of scope in the official raylib, mainly macOS related stuff, so be warned that I will close issues that I think should be reported there

WARNING: Please, read this note carefully before submitting a new issue:

It is important to realise that this is NOT A SUPPORT FORUM, this is for reproducible BUGS with raylib ONLY.

There are lots of generous and helpful people ready to help you out on raylib Discord forum or raylib reddit.

Remember that asking for support questions here actively takes developer time away from improving raylib.

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Please, before submitting a new issue verify and check:

• I tested it on latest raylib version from master branch
• I checked there is no similar issue already reported
• My code has no errors or misuse of raylib
• The issue is related to this forks purpose (mainly macOS) and not a regular raylib issue

Issue description

TakeScreenshot and gif recording (F12 functions) not getting full window on macOS monitor with retina screen or high resolution (e.g. 4k). There was a previous fix for this on this fork that was done on master and also using some additional glfw function but a generic fix seems possible with ray lib functions.

Environment

macOS (at least Catalina and up). 16" MBP 2020, external 4k display

Support of GLFW_COCOA_GRAPHICS_SWITCHING hint

Issue description

As the default of GLFW on macOS is to enforce an available dedicated GPU, even low demanding games and tools are easily getting the GPU fans going, the power consumption is higher, reducing the battery runtime on MacBooks without need.

Environment

macOS on a MacBook Pro with Intel UHD Graphics 630 and dedicated AMD Radeon Pro 5500M

Code Example

The suggested use-case would be something like:

    SetConfigFlags(FLAG_MSAA_4X_HINT | FLAG_VSYNC_HINT | FLAG_WINDOW_RESIZABLE | FLAG_COCOA_GRAPHICS_SWITCHING);
    InitWindow(screenWidth, screenHeight, "raylib [ImGui] example - ImGui Demo");