/* Copyright (C) 1997-2017 Sam Lantinga This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely. */ #include #include #include #include "SDL2/SDL.h" static SDL_DisplayMode modes[5]; static int mode_count = 0, current_mode = 0; void print_info(SDL_Window *window, SDL_Renderer *renderer) { int w, h; SDL_DisplayMode mode; SDL_GetWindowSize(window, &w, &h); SDL_Log("window size: %i x %i\n", w, h); SDL_GetRendererOutputSize(renderer, &w, &h); SDL_Log("renderer size: %i x %i\n", w, h); SDL_GetCurrentDisplayMode(0, &mode); SDL_Log("display mode: %i x %i @ %i bpp (%s)", mode.w, mode.h, SDL_BITSPERPIXEL(mode.format), SDL_GetPixelFormatName(mode.format)); } void change_mode(SDL_Window *window) { current_mode++; if (current_mode == mode_count) { current_mode = 0; } SDL_SetWindowDisplayMode(window, &modes[current_mode]); } void draw_rects(SDL_Renderer *renderer, int x, int y) { // R SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255); SDL_Rect r = {x, y, 64, 64}; SDL_RenderFillRect(renderer, &r); // G SDL_SetRenderDrawColor(renderer, 0, 255, 0, 255); SDL_Rect g = {x + 64, y, 64, 64}; SDL_RenderFillRect(renderer, &g); // B SDL_SetRenderDrawColor(renderer, 0, 0, 255, 255); SDL_Rect b = {x + 128, y, 64, 64}; SDL_RenderFillRect(renderer, &b); } int main(int argc, char *argv[]) { SDL_Event event; SDL_Window *window; SDL_Renderer *renderer; int done = 0, x = 0, w = 0, h = 0; // mandatory at least on switch, else gfx is not properly closed if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0) { SDL_Log("SDL_Init: %s\n", SDL_GetError()); return -1; } /// create a window (OpenGL always enabled) /// available switch SDL2 video modes : /// 1920 x 1080 @ 32 bpp (SDL_PIXELFORMAT_RGBA8888) /// 1280 x 720 @ 32 bpp (SDL_PIXELFORMAT_RGBA8888) /// /// SDL_SetWindowSize to change window size when SDL_WINDOW_FULLSCREEN is NOT used (preferably) /// SDL_SetDisplayMode to change display size after SDL_CreateWindow called with SDL_WINDOW_FULLSCREEN /// (this means window size won't change, you'll need to handle that, as any SDL2 app) window = SDL_CreateWindow("sdl2_gles2", 0, 0, 1280, 720, 0); if (!window) { SDL_Log("SDL_CreateWindow: %s\n", SDL_GetError()); SDL_Quit(); return -1; } // create a renderer (OpenGL ES2) renderer = SDL_CreateRenderer(window, 0, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC); if (!renderer) { SDL_Log("SDL_CreateRenderer: %s\n", SDL_GetError()); SDL_Quit(); return -1; } // pint some info about display/window/renderer print_info(window, renderer); // list available display modes mode_count = SDL_GetNumDisplayModes(0); for (int i = 0; i < mode_count; i++) { SDL_DisplayMode mode; SDL_GetDisplayMode(0, i, &mode); modes[i] = mode; SDL_Log("found display mode: %i x %i @ %i bpp (%s)", mode.w, mode.h, SDL_BITSPERPIXEL(mode.format), SDL_GetPixelFormatName(mode.format)); } // open CONTROLLER_PLAYER_1 and CONTROLLER_PLAYER_2 // when railed, both joycons are mapped to joystick #0, // else joycons are individually mapped to joystick #0, joystick #1, ... // https://github.com/devkitPro/SDL/blob/switch-sdl2/src/joystick/switch/SDL_sysjoystick.c#L45 for (int i = 0; i < 2; i++) { if (SDL_JoystickOpen(i) == NULL) { SDL_Log("SDL_JoystickOpen: %s\n", SDL_GetError()); SDL_Quit(); return -1; } } while (!done) { while (SDL_PollEvent(&event)) { switch (event.type) { case SDL_JOYAXISMOTION: SDL_Log("Joystick %d axis %d value: %d\n", event.jaxis.which, event.jaxis.axis, event.jaxis.value); break; case SDL_JOYBUTTONDOWN: SDL_Log("Joystick %d button %d down\n", event.jbutton.which, event.jbutton.button); // https://github.com/devkitPro/SDL/blob/switch-sdl2/src/joystick/switch/SDL_sysjoystick.c#L52 if (event.jbutton.which == 0) { if (event.jbutton.button == 0) { // joystick #0 down (A) change_mode(window); print_info(window, renderer); } else if (event.jbutton.button == 2) { // joystick #0 down (X) if (w == 1920) { SDL_SetWindowSize(window, 1280, 720); } else { SDL_SetWindowSize(window, 1920, 1080); } print_info(window, renderer); } } // joystick #0 down (B) if (event.jbutton.which == 0 && event.jbutton.button == 1) { done = 1; } break; default: break; } } SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255); SDL_RenderClear(renderer); // Fill renderer bounds SDL_SetRenderDrawColor(renderer, 111, 111, 111, 255); SDL_GetWindowSize(window, &w, &h); SDL_Rect f = {0, 0, w, h}; SDL_RenderFillRect(renderer, &f); draw_rects(renderer, x, 0); draw_rects(renderer, x, h - 64); SDL_RenderPresent(renderer); x++; if (x > w - 192) { x = 0; } } SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); SDL_Quit(); return 0; } //----------------------------------------------------------------------------- // nxlink support //----------------------------------------------------------------------------- #include static int s_nxlinkSock = -1; static void initNxLink() { if (R_FAILED(socketInitializeDefault())) return; s_nxlinkSock = nxlinkStdio(); if (s_nxlinkSock >= 0) printf("printf output now goes to nxlink server\n"); else socketExit(); } static void deinitNxLink() { if (s_nxlinkSock >= 0) { close(s_nxlinkSock); socketExit(); s_nxlinkSock = -1; } } void userAppInit() { initNxLink(); } void userAppExit() { deinitNxLink(); }