mirror of https://github.com/encounter/SDL.git
108 lines
2.4 KiB
C
108 lines
2.4 KiB
C
|
/*
|
||
|
|
Copyright (C) 1997-2013 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, 0);
|
||
|
|
|
||
|
|
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;
|
||
|
|
|
||
|
|
/* Initialize SDL */
|
||
|
|
if(SDL_Init(SDL_INIT_VIDEO) != 0)
|
||
|
|
{
|
||
|
|
fprintf(stderr,"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)
|
||
|
|
{
|
||
|
|
fprintf(stderr,"Window creation fail : %s\n",SDL_GetError());
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
surface = SDL_GetWindowSurface(window);
|
||
|
|
renderer = SDL_CreateSoftwareRenderer(surface);
|
||
|
|
if(!renderer)
|
||
|
|
{
|
||
|
|
fprintf(stderr,"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, 0);
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|