| /* |
| Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org> |
| |
| 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. |
| |
| This file is created by : Nitin Jain (nitin.j4@samsung.com) |
| */ |
| |
| /* Sample program: Draw a Chess Board by using SDL_CreateSoftwareRenderer API */ |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| |
| #include "SDL.h" |
| |
| void |
| DrawChessBoard(SDL_Renderer * renderer) |
| { |
| int row = 0,coloum = 0,x = 0; |
| SDL_Rect rect, darea; |
| |
| /* Get the Size of drawing surface */ |
| SDL_RenderGetViewport(renderer, &darea); |
| |
| for(row; row < 8; row++) |
| { |
| coloum = row%2; |
| x = x + coloum; |
| for(coloum; coloum < 4+(row%2); coloum++) |
| { |
| SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0xFF); |
| |
| rect.w = darea.w/8; |
| rect.h = darea.h/8; |
| rect.x = x * rect.w; |
| rect.y = row * rect.h; |
| x = x + 2; |
| SDL_RenderFillRect(renderer, &rect); |
| } |
| x=0; |
| } |
| } |
| |
| int |
| main(int argc, char *argv[]) |
| { |
| SDL_Window *window; |
| SDL_Surface *surface; |
| SDL_Renderer *renderer; |
| |
| /* Enable standard application logging */ |
| SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO); |
| |
| /* Initialize SDL */ |
| if(SDL_Init(SDL_INIT_VIDEO) != 0) |
| { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_Init fail : %s\n", SDL_GetError()); |
| return 1; |
| } |
| |
| |
| /* Create window and renderer for given surface */ |
| window = SDL_CreateWindow("Chess Board", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_SHOWN); |
| if(!window) |
| { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Window creation fail : %s\n",SDL_GetError()); |
| return 1; |
| } |
| surface = SDL_GetWindowSurface(window); |
| renderer = SDL_CreateSoftwareRenderer(surface); |
| if(!renderer) |
| { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Render creation for surface fail : %s\n",SDL_GetError()); |
| return 1; |
| } |
| |
| /* Clear the rendering surface with the specified color */ |
| SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF); |
| SDL_RenderClear(renderer); |
| |
| |
| /* Draw the Image on rendering surface */ |
| while(1) |
| { |
| SDL_Event e; |
| if (SDL_PollEvent(&e)) { |
| if (e.type == SDL_QUIT) |
| break; |
| |
| if(e.key.keysym.sym == SDLK_ESCAPE) |
| break; |
| } |
| |
| DrawChessBoard(renderer); |
| |
| /* Got everything on rendering surface, |
| now Update the drawing image on window screen */ |
| SDL_UpdateWindowSurface(window); |
| |
| } |
| |
| return 0; |
| } |
| |