Add source code and build system config

.gitignore

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+build
+CMakeLists.txt.*

CMakeLists.txt

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+#
+# Copyright (c) 2018 Amine Ben Hassouna <amine.benhassouna@gmail.com>
+#
+# Permission is hereby granted, free of charge, to any
+# person obtaining a copy of this software and associated
+# documentation files (the "Software"), to deal in the
+# Software without restriction, including without
+# limitation the rights to use, copy, modify, merge,
+# publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software
+# is furnished to do so, subject to the following
+# conditions:
+#
+# The above copyright notice and this permission notice
+# shall be included in all copies or substantial portions
+# of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+# ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+# TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+# PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+# IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+#
+
+# Define the project name
+project(basic-c-sdl-project)
+
+# Set the cmake minimum version to 3.5.1
+cmake_minimum_required(VERSION 3.5.1)
+
+# Add all headers files under the include directory
+include_directories(include)
+
+# Add all c source files under the src directory
+file(GLOB SOURCES "src/*.c")
+add_executable(${PROJECT_NAME} ${SOURCES})
+
+# Load CMake module : FindPkgConfig
+include(FindPkgConfig)
+
+# Add SDL2 library
+pkg_search_module(SDL2 REQUIRED sdl2)
+include_directories(${SDL2_INCLUDE_DIRS})
+target_link_libraries(${PROJECT_NAME} ${SDL2_LIBRARIES})
+
+# Add SDL2_image library
+#pkg_search_module(SDL2IMAGE REQUIRED SDL2_image>=2.0.0)
+#include_directories(${SDL2IMAGE_INCLUDE_DIRS})
+#target_link_libraries(${PROJECT_NAME} ${SDL2IMAGE_LIBRARIES})
+
+# Add SDL2_ttf library
+#pkg_search_module(SDL2TTF REQUIRED SDL2_ttf>=2.0.0)
+#include_directories(${SDL2TTF_INCLUDE_DIRS})
+#target_link_libraries(${PROJECT_NAME} ${SDL2TTF_LIBRARIES})
+
+# Add SDL2_gfx library
+#pkg_search_module(SDL2GFX REQUIRED SDL2_gfx)
+#include_directories(${SDL2GFX_INCLUDE_DIRS})
+#target_link_libraries(${PROJECT_NAME} ${SDL2GFX_LIBRARIES})
+

include/.include_dir

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+This is the include directory

src/main.c

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+/*
+ * Copyright (c) 2018 Amine Ben Hassouna <amine.benhassouna@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any
+ * person obtaining a copy of this software and associated
+ * documentation files (the "Software"), to deal in the
+ * Software without restriction, including without
+ * limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software
+ * is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice
+ * shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ * ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+ * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+ * SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+ * IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <stdio.h>
+#include <stdbool.h>
+
+#include <SDL2/SDL.h>
+
+// Define MAX and MIN macros
+#define MAX(X, Y) (((X) > (Y)) ? (X) : (Y))
+#define MIN(X, Y) (((X) < (Y)) ? (X) : (Y))
+
+// Define screen dimensions
+#define SCREEN_WIDTH    800
+#define SCREEN_HEIGHT   600
+
+int main(int argc, char* args[])
+{
+    // Initialize SDL
+    if(SDL_Init(SDL_INIT_VIDEO) < 0)
+    {
+        printf("SDL could not be initialized!\n"
+               "SDL_Error: %s\n", SDL_GetError());
+        return 0;
+    }
+
+    // Create window
+    SDL_Window *window = SDL_CreateWindow("Basic C SDL project",
+                                          SDL_WINDOWPOS_UNDEFINED,
+                                          SDL_WINDOWPOS_UNDEFINED,
+                                          SCREEN_WIDTH, SCREEN_HEIGHT,
+                                          SDL_WINDOW_SHOWN);
+    if(!window)
+    {
+        printf("Window could not be created!\n"
+               "SDL_Error: %s\n", SDL_GetError());
+    }
+    else
+    {
+        // Create renderer
+        SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+        if(!renderer)
+        {
+            printf("Renderer could not be created!\n"
+                   "SDL_Error: %s\n", SDL_GetError());
+        }
+        else
+        {
+            // Declare rect of square
+            SDL_Rect squareRect;
+
+            // Square dimensions: Half of the min(SCREEN_WIDTH, SCREEN_HEIGHT)
+            squareRect.w = MIN(SCREEN_WIDTH, SCREEN_HEIGHT) / 2;
+            squareRect.h = MIN(SCREEN_WIDTH, SCREEN_HEIGHT) / 2;
+
+            // Square position: In the middle of the screen
+            squareRect.x = SCREEN_WIDTH / 2 - squareRect.w / 2;
+            squareRect.y = SCREEN_HEIGHT / 2 - squareRect.h / 2;
+
+
+            // Event loop exit flag
+            bool quit = false;
+
+            // Event loop
+            while(!quit)
+            {
+                SDL_Event e;
+
+                // Wait indefinitely for the next available event
+                SDL_WaitEvent(&e);
+
+                // User requests quit
+                if(e.type == SDL_QUIT)
+                {
+                    quit = true;
+                }
+
+                // Initialize renderer color white for the background
+                SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF);
+
+                // Clear screen
+                SDL_RenderClear(renderer);
+
+                // Set renderer color red to draw the square
+                SDL_SetRenderDrawColor(renderer, 0xFF, 0x00, 0x00, 0xFF);
+
+                // Draw filled square
+                SDL_RenderFillRect(renderer, &squareRect);
+
+                // Update screen
+                SDL_RenderPresent(renderer);
+            }
+
+            // Destroy renderer
+            SDL_DestroyRenderer(renderer);
+        }
+    }
+
+    // Destroy window
+    SDL_DestroyWindow(window);
+
+    // Quit SDL
+    SDL_Quit();
+
+    return 0;
+}