sdl-2

I want to create my first game. Nothing special, just blue rectangle moving when WSAD keys are pressed. The problem is that when I run my game, there are bugs with rectangle(See image below). Bugs appears only during horizontal movement, and not vertical. Which is interesting, when I changed line: renderer = SDL_CreateRenderer(display, -1, SDL_RENDERER_ACCELERATED) to: renderer = SDL_CreateRenderer(display, -1, SDL_RENDERER_SOFTWARE) everything is OK I am using Windows 10, MinGw with CMake(C++14), and SDL 2.0.8, Intel core i5 7th gen, Radeon M7 R465 Im my code OnRender function is responsible

config: archlinux with awesome desktop environment I just installed sdl2, and tried to run this sample code: https://github.com/xyproto/hello_sdl2/blob/master/c%2B%2B/main.cpp The result is an empty window (I can see my console through it) in the middle of the screen. Even when I hit mod4+Enter, it doesn't tile up nicely with the others. Why is that? (I updated my system, reinstalled sdl2. I also couldn't find any relevant hit browsing google.) All windowing systems require you to handle messages by pumping a message queue. See this chapter for some SDL specific examples but the essence is

I'm trying to build a simple SDL2 game with CMake and MSYS Makefiles. I want to statically link SDL2 so I can distribute a single executable without having to include the SDL2.dll. Here's my CMakeLists.txt file: project(racer-sdl) cmake_minimum_required(VERSION 2.8) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11") set(CMAKE_EXE_LINKER_FLAGS "-static") include(FindPkgConfig) pkg_search_module(SDL2 sdl2) if (SDL2_FOUND) message(STATUS "Using SDL2") add_definitions(-DUSE_SDL2) include_directories(${SDL2_INCLUDE_DIRS}) link_directories(${SDL2_LIBRARY_DIRS}) link_libraries(${SDL2_LIBRARIES})

I would like to know ho to use SDL_CreateTexture function. I just want to create texture, give it a color and draw it somewhere on the screen. I dont wanna load any picture into it. I thought I can use SDL_CreateTexture, SDL_SetTextureColorMod, SDL_RenderCopy, SDL_RenderPresent in that order, but I always get just a black rectangle instead of red one . #include <SDL.h> int main(int argc, char* argv[]) { SDL_Init(SDL_INIT_EVERYTHING); SDL_Window *MainWindow = SDL_CreateWindow("My Game Window", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1024, 768, SDL_WINDOW_SHOWN ); SDL_Renderer *renderer

I followed following steps to install kivy in virtualenv (Mac OSX) with support of sdl2 $ brew install sdl2 sdl2_image sdl2_ttf sdl2_mixer gstreamer $ pip install -I Cython $ USE_OSX_FRAMEWORKS=0 pip install kivy but when tried to run basic documentation code from kivy.app import App from kivy.uix.gridlayout import GridLayout from kivy.uix.label import Label from kivy.uix.textinput import TextInput class LoginScreen(GridLayout): def __init__(self, **kwargs): super(LoginScreen, self).__init__(**kwargs) self.cols = 2 self.add_widget(Label(text='User Name')) self.username = TextInput(multiline

I've just started learning SDL2 in Linux. I am reading the very first tutorial from LazyFoo and I see have that code: //The window we'll be rendering to SDL_Window* window = NULL; Where can I find the definition of SDL_Window in order to read about it ? keltar This structure isn't exposed to user side; SDL_video.h file contains forward declaration of it: typedef struct SDL_Window SDL_Window; Forward declaration means you can only use it as pointer type because actual data layout is hidden from you. Actual type struct SDL_Window is currently declared in src/video/SDL_sysvideo.h (in SDL Source

I'm am learning SDL2, but I am also using the imgui library that is using OpenGL calls. From what I read on various blogs online, I can't easily mix SDL2 renderer and opengl calls; I either use one or the other. Most of the tutorials I've read use the renderer, so I do not quite understand how to use SDL2 without the renderer for drawing primitives, or drawing sprites. Take this for example: http://lazyfoo.net/tutorials/SDL/11_clip_rendering_and_sprite_sheets/index.php He creates the sdl renderer: gRenderer = SDL_CreateRenderer( gWindow, -1, SDL_RENDERER_ACCELERATED ); Which he then uses to

I'm trying to make a program using SDL and C++. How can I get screen's width and height in pixels in SDL?I'm trying to get screen's width not the window's width. . . . In SDL2, use SDL_GetCurrentDisplayMode or SDL_GetDesktopDisplayMode depending on your needs. Usage example: SDL_DisplayMode DM; SDL_GetCurrentDisplayMode(0, &DM); auto Width = DM.w; auto Height = DM.h; On high-DPI displays this will return the virtual resolution, not the physical resolution. From the SDL2 wiki: There's a difference between [ SDL_GetDesktopDisplayMode ()] and SDL_GetCurrentDisplayMode () when SDL runs fullscreen