sdl

I've written a program using C++ and SDL2 which: creates a window gets the window's surface creates a renderer for the window renders some filled rectangles onto the window creates a texture from the window's surface clears the screen renders some filled circles onto the window creates a second texture from the window's surface enters an event loop, where every time a key is pressed: if circles are currently being displayed, SDL_RenderCopy() is used to copy the squares texture to the window. else if squares are currently being displayed, the circles texture is copied to the window. The program

I have been learning about SDL 2D programming for a while and now I wanted to create a program using SDL and OpenGL combined. I set it up like this: SDL_Init(SDL_INIT_VIDEO); window = SDL_CreateWindow("SDL and OpenGL", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, SDL_WINDOW_OPENGL); context = SDL_GL_CreateContext(window); The program is for now just a black window with a white line displayed using OpenGl. Here is the code for the rendering: glClearColor(0, 0, 0, 0); glClear(GL_COLOR_BUFFER_BIT); glBegin(GL_LINES); glVertex2d(1, 0); glVertex2d(-1, 0); glEnd(); SDL_GL

When using iostream in C++ on Linux, it displays the program output in the terminal, but in Windows, it just saves the output to a stdout.txt file. How can I, in Windows, make the output appear in the console? MSN Since you mentioned stdout.txt I google'd it to see what exactly would create a stdout.txt; normally, even with a Windows app, console output goes to the allocated console, or nowhere if one is not allocated. So, assuming you are using SDL (which is the only thing that brought up stdout.txt), you should follow the advice here . Either freopen stdout and stderr with "CON", or do the

For my game should I use a raw pointer to create SDL_Window , SDL_Renderer , SDL_Texture etc. as they have specific delete functions SDL_DestroyTexture(texture); or should I add a custom deleter when I create a unique_ptr or shared_ptr and if so how would I do this with SDL types? You could create a functor that has several overloaded operator() implementations, each of which call the correct destroy function for the respective argument type. struct sdl_deleter { void operator()(SDL_Window *p) const { SDL_DestroyWindow(p); } void operator()(SDL_Renderer *p) const { SDL_DestroyRenderer(p); }

I'm using OpenGL and SDL to create a window in my program. How do I use SDL_ttf with an OpenGL window? For example I want to load a font and render some text. I want to draw the text using an SDL OpenGL surface. Here's how to do it: Initialize SDL and SDL_ttf, and create a window using SDL_SetVideoMode() . Make sure you pass the SDL_OPENGL flag. Initialize your OpenGL scene ( glViewport() , glMatrixMode() etc.). Render your text with SDL_ttf using e.g. TTF_RenderUTF8_Blended() . The render functions return an SDL_surface, which you have to convert into an OpenGL texture by passing a pointer to

I am following along with the SDL2.0 tutorials by LazyFoo, using Code::Blocks 13.12. I have had no trouble getting SDL2 linked and running in VS2010 but have changed IDE and come across this error: winapifamily.h: No such file or directory I think everything is linked correctly. I have pointed the program to my SDL2 include and lib directories. Buildlog: (error is occuring in file: ..\include\SDL2\SDL_platform.h) === Build: Debug in SDL2_Setup (compiler: GNU GCC Compiler) === fatal error: winapifamily.h: No such file or directory === Build fails: 1 error(s), 0 warning(s) (0 minute(s), 0 second

I'm starting with SDL2 and having some trouble trying to understand what an SDL_Renderer is. What is it? What does it do? What's the difference between SDL_Renderer, SDL_Window, SDL_Surface and SDL_Texture and how they are related? I had issues with this when trying to understand this introductory code: #include <iostream> #include <SDL2/SDL.h> int main() { /* Starting SDL */ if (SDL_Init(SDL_INIT_EVERYTHING) != 0) { std::cout << "SDL_Init Error: " << SDL_GetError() << std::endl; return 1; } /* Create a Window */ SDL_Window *window = SDL_CreateWindow("Hello World!", 100, 100, 640, 480, SDL

I've cobbled together a very basic game loop in C++ using SDL2, and I've noticed that every few seconds, SDL_PollEvent seems to be unusually slow, even when nothing is happening. I sent my deltaTime to console every loop, and its about 100ms difference on the cycles that SDL_PollEvent is lagging. I've already confirmed that it's something with this function by moving my timers around, but I'm not sure where to diagnose the issue further. My loop: while (!quit) { uint32_t startTime = SDL_GetTicks(); while (SDL_PollEvent(&e) != 0) { std::cout << "Event: "<< e.type << std::endl; // Added later,