Created
September 9, 2021 18:37
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basic SDL window with opengl context
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| #include <SDL2/SDL.h> | |
| #include <SDL2/SDL_opengl.h> | |
| #include <iostream> | |
| constexpr float R = 0.2f; | |
| constexpr float G = 0.4f; | |
| constexpr float B = 0.9f; | |
| constexpr float A = 1.0f; | |
| void sdlContext(int width, int height, const char *title) | |
| { | |
| std::cout << "SDL Window Creation\n"; | |
| SDL_Init(SDL_INIT_VIDEO); | |
| SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE); | |
| SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3); | |
| SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3); | |
| SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8); | |
| SDL_Window *window = SDL_CreateWindow(title, | |
| SDL_WINDOWPOS_CENTERED, | |
| SDL_WINDOWPOS_CENTERED, | |
| width, | |
| height, | |
| SDL_WINDOW_OPENGL); | |
| SDL_GLContext context = SDL_GL_CreateContext(window); | |
| bool running{true}; | |
| SDL_Event event; | |
| while (running) | |
| { | |
| while (SDL_PollEvent(&event)) | |
| { | |
| if (event.type == SDL_QUIT) | |
| running = false; | |
| if (event.type == SDL_KEYDOWN) | |
| { | |
| switch (event.key.keysym.scancode) | |
| { | |
| case SDL_SCANCODE_ESCAPE: | |
| running = false; | |
| break; | |
| default: | |
| break; | |
| } | |
| } | |
| } | |
| glClearColor(R, G, B, A); | |
| glClear(GL_COLOR_BUFFER_BIT); | |
| SDL_GL_SwapWindow(window); | |
| } | |
| SDL_GL_DeleteContext(context); | |
| SDL_Quit(); | |
| } | |
| int main(int argc, char *argv[]) | |
| { | |
| int width = 640; | |
| int height = 480; | |
| const char *title = "Hello World!"; | |
| sdlContext(width, height, title); | |
| return 0; | |
| } |
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