106 lines
2.1 KiB
C
106 lines
2.1 KiB
C
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#include <SDL2/SDL.h>
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#include <stdio.h>
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int main(void) {
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/*
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* RETURN CODES
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* 0: Success
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* 1: SDL init fail
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* 2: Error creating Window
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* 3: Error creating renderer
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*
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*/
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/* ----------------
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* SDL Init
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* ----------------
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*/
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if (SDL_Init(SDL_INIT_EVERYTHING)!=0) {
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perror("[FAILED] Initialising SDL: ");
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return 1;
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}
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int go; //Var for loop control
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/* ----------------
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* Main Window
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* ----------------
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* Create the main output Window for SDL
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*/
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// Window vars
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int winPosX = 100; int winPosY = 100;
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int winWidth = 640; int winHeight = 480;
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SDL_Window *window1 = SDL_CreateWindow(
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"Main Window",
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winPosX, winPosY,
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winWidth, winHeight,
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SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE
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);
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if (window1==NULL) {
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fprintf(stderr, "[FAILED] Creating Window window1");
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return 2; //Error creating Window
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}
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/*
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* ----------------
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* Renderer
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* ----------------
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* Creates the main renderer (tied to main window)
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*/
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SDL_Renderer * renderer1 = SDL_CreateRenderer(window1, -1, 0);
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if (renderer1==NULL) {
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fprintf(stderr, "[FAILED] Creating renderer renderer1 for window1");
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return 3;
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}
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go=1;
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while(go) {
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/*
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* ----------------
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* Event handling
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* ----------------
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*/
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SDL_Event incomingEvent;
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while (SDL_PollEvent(&incomingEvent)) {
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switch (incomingEvent.type) {
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case SDL_QUIT:
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// User requested program quit - e.g. window close
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go=0;
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break;
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}
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}
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/*
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* ----------------
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* Draw to buffer
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* ----------------
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*/
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SDL_SetRenderDrawColor(renderer1, 0xFF, 0x00, 0x0, 0xFF); //RGBA
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SDL_RenderClear(renderer1);
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/*
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* --------------------------------
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* Output to Window
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* --------------------------------
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*/
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SDL_RenderPresent(renderer1);
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SDL_Delay(10);
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}
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/*
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* --------------------------------
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* Clean up after ourselves
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* --------------------------------
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*/
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SDL_DestroyWindow(window1);
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SDL_Quit();
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return 0;
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}
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