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Questions tagged [sdl-2]

For questions and issues regarding Simple DirectMedia Layer 2 (SDL2). If you're using SDL 1.2, use tag [sdl-1.2]. If you're questioning the library in general, use tag [sdl].

Simple DirectMedia Layer 2.0 (SDL2) is the second generation of a popular open source cross-platform library that provides a simple interface to graphics, sound, and input devices. The new version comes with lots of new features such as full 3D hardware acceleration and the less restrictive zlib license.

Resources:

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Bazel cc_library linkopts relative file path

I have a Bazel BUILD file that involves linking the SDL2 library. I was wondering if I there is a way to replace the file path for the -L flag to a relative file path instead of an absolute file path. The BUILD file that uses the absolute file path…
Desmond Chi
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Undefined Reference To SDL Errors

I coded some block of code that I display down below. I am trying to use SDL2 for game development with C++ but I get some undefined reference to SDL errors. I am going to display those errors down below. First, I downloaded SDL2 and I copied the…
emir
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Render Text using SDL2 TTF and glDrawPixels

I am currently adding support for a SDL2 windowing system to a library, that currently uses GLUT. This includes rendering text. The problematic part is that I don't have access to the Window or Renderer at the position where text rendering happens.…
Jhonny007
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How do I utilize the pygame._sdl2.controller module? Does it even exist?

I'm in the throes of producing a game, and with my keyboard controls going well, I decided to start expanding into controller support. Following the documentation, I thought I had initialized pygame.controller and created two controller objects, but…
Dan Brown
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How to make a smooth transition from a frequency to another in SDL2?

I am working on a beeper that makes simple wave sounds in order to use it in sorting visualizer program. The beeper can make simple waves. The problem is that I want to eliminate the clicking sound when stopping the sound or changing the…
Grumpy
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SDL2 Framework Linking in Xcode failing due to different team id's

I'm trying to compile a very basic C++ app in XCode using SDL2 - and I'm running into a frustrating code signing issue that is not apparently solvable without disabling hardened validations (not really an option if you want to distribute your app).…
whitehawk
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Compiling sdl-based crates with Cargo causes linker errors (sdl2, pix-engine)

I'm running Ubuntu 20.04.6, with cargo 1.70.0 installed via the rustup installer script (rustup 1.26.0) running cargo run with the the pix-engine example program pasted into main.rs gave me this error error: linking with `cc` failed: exit status: 1 …
joeman
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How to have different size textures on SDL2?

There's quite a bit of code, so I put it all on my github. (cpp files are on /src, hpp files are on /include) This is probably really simple, but since I'm new to C++ I'm not realizing how to get there. So I have a few textures on my project…
Martim
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SDL code question : Switch between two images

I want to make a game like chrome://dino using SDL, but i don't know how to make dino run. I think it has something to do with switching between the two photos, but i can't find any SDL tutorials about this situation. Can someone help me?
Boris5581
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How do I compile a C program with SDL2_TTF on Windows 11?

I have a C project, with multiple files and headers, that all use SDL2. I am using Windows 11, so I compile all the files like this, with mingw64 installed: set CFLAGS=-IC:/path/to/SDL2/include -Wall -lmingw32 -lSDL2main -lSDL2…
Priff13
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undefined reference to `SDL_CreateWindow' when setting up SDL2

I recently wanted to start learning SDL2 and followed codergophers installation tutorial on youtube. However I ran into this error for some reason (.text+0x49): undefined reference to `SDL_CreateWindow' (.text+0x9b): undefined reference to…
Recondit
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Trying to use #version 330 core glsl shader files mac 13.1

I am trying to write a simple vertex shader and fragment shader. I am using SDL2 as my window manager and I am following this tutorial: https://learnopengl.com/Getting-started/Hello-Triangle I've gotten to the part after writing the vertex shader to…
Veer Singh
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SDL_PollEvent cannot get the correct event

I'm adding support for the fbneo emulator to the retrobat emulator frontend. I'm running into a really tricky problem right now. The method for the retrobat front end to exit the game is to use SDL2 to monitor the key event of the controller. If the…
user236655
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How can I implement 3d graphics rendering in C with the SDL2?

I tried implementing a C program which draws a 3d cube using SDL2. Im sorry if it is just a stupid small mistake I'm very new to C/C++. I followed this tutorial: https://youtu.be/ih20l3pJoeU. The guy from the tutorial coded everything in C++ but I…
Slykapar
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Alpha channel have no effect when drawn to texture and pasted to window

Using SDL2, I want to draw some graphics on texture and paste it on window for speed enhancement. When I paste it I want my alpha channel preserved. This code is supposed to show a white rotating transparent rectangle. But it shows opaque white…
Zeta
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