Updating changes up to Draw Pixel Function

src/display.c

@@ -0,0 +1,100 @@
+#include "display.h"
+
+
+SDL_Window* window = NULL;
+SDL_Renderer* renderer = NULL;
+
+// Also known as frame buffer in other books, pointer to an array of color_buffer
+uint32_t* color_buffer = NULL;
+SDL_Texture* color_buffer_texture = NULL;
+
+int window_width = 800;
+int window_height = 600;
+
+bool initialize_window(void) {
+    if (SDL_Init(SDL_INIT_EVERYTHING) != 0) {
+        fprintf(stderr, "Error initializing SDL.\n");
+	return false;
+	
+    }
+
+    // Use SDL to query what is the fullscreen max. width and height
+    SDL_DisplayMode display_mode;
+    SDL_GetCurrentDisplayMode(0, &display_mode);
+
+    window_width = display_mode.w;
+    window_height = display_mode.h;
+
+    // Create a SDL window 
+    window = SDL_CreateWindow(
+	NULL,
+	SDL_WINDOWPOS_CENTERED,
+	SDL_WINDOWPOS_CENTERED,
+	window_width,
+	window_height,
+	SDL_WINDOW_BORDERLESS
+    );
+    if (!window) {
+	fprintf(stderr, "Error creating SDL window.\n");
+	return false;
+    } 
+    
+    // Create a SDL renderer 
+    renderer = SDL_CreateRenderer(window, -1, 0);
+    if (!renderer) {
+	fprintf(stderr, "Error creating SDL error.\n");
+	return false;
+    }    
+    SDL_SetWindowFullscreen(window, SDL_WINDOW_FULLSCREEN);
+    
+
+    return true;
+}
+
+void render_color_buffer(void){
+    SDL_UpdateTexture(
+	    color_buffer_texture,
+	    NULL,
+	    color_buffer,
+	    (int)(window_width * sizeof(uint32_t))
+    );
+    SDL_RenderCopy(renderer, color_buffer_texture, NULL, NULL);
+}
+
+void clear_color_buffer(uint32_t color){
+    for (int y = 0; y < window_height; y++){
+	for (int x = 0; x < window_width; x++){
+	    color_buffer[(window_width * y) + x] = color;
+	}
+    }
+}
+
+void draw_rect(int x, int y, int width, int height, uint32_t color){
+    for (int j = x; j <= x + width; j++){
+	for (int k = y; k <= y + height; k++){
+	   color_buffer[(window_width * j) + k] = color;
+       }
+    }
+}
+
+void draw_pixel(int x, int y, uint32_t color){
+    if (x < window_width && y < window_height){
+	color_buffer[(window_width * y) + x] = color;
+    }
+}
+
+void draw_grid(void){
+    for (int y = 0; y < window_height; y += 10){
+	for (int x = 0; x < window_width; x += 10){
+	    color_buffer[(window_width * y) + x ] = 0xFF133343;
+	}
+    }
+}
+
+void destroy_window(void){
+    free(color_buffer);
+    SDL_DestroyRenderer(renderer);
+    SDL_DestroyWindow(window);
+    SDL_Quit();
+}
+

src/display.h

@@ -0,0 +1,24 @@
+#ifndef DISPLAY_H
+#define DISPLAY_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <SDL2/SDL.h>
+
+
+extern SDL_Window* window;
+extern SDL_Renderer* renderer;
+extern uint32_t* color_buffer;
+extern SDL_Texture* color_buffer_texture;
+extern int window_width;
+extern int window_height;
+
+bool initialize_window(void);
+void draw_pixel(int x, int y, uint32_t color);
+void draw_rect(int x, int y, int width, int height, uint32_t color);
+void draw_grid(void);
+void render_color_buffer(void);
+void clear_color_buffer(uint32_t color);
+void destroy_window(void);
+
+#endif

src/main.c

@@ -1,66 +1,10 @@
-#include <stdio.h>
 #include <stdint.h>
 #include <stdbool.h>
 #include <SDL2/SDL.h>
+#include "display.h"
 
 bool is_running = false;
 
-SDL_Window* window = NULL;
-SDL_Renderer* renderer = NULL;
-
-// Also known as frame buffer in other books, pointer to an array of color_buffer
-uint32_t* color_buffer = NULL;
-SDL_Texture* color_buffer_texture = NULL;
-
-int window_width = 800;
-int window_height = 600;
-
-bool initialize_window(void) {
-    if (SDL_Init(SDL_INIT_EVERYTHING) != 0) {
-        fprintf(stderr, "Error initializing SDL.\n");
-	return false;
-	
-    }
-
-    // Use SDL to query what is the fullscreen max. width and height
-    SDL_DisplayMode display_mode;
-    SDL_GetCurrentDisplayMode(0, &display_mode);
-
-    window_width = display_mode.w;
-    window_height = display_mode.h;
-
-    // Create a SDL window 
-    window = SDL_CreateWindow(
-	NULL,
-	SDL_WINDOWPOS_CENTERED,
-	SDL_WINDOWPOS_CENTERED,
-	window_width,
-	window_height,
-	SDL_WINDOW_BORDERLESS
-    );
-    if (!window) {
-	fprintf(stderr, "Error creating SDL window.\n");
-	return false;
-    } 
-    
-    // Create a SDL renderer 
-    renderer = SDL_CreateRenderer(window, -1, 0);
-    if (!renderer) {
-	fprintf(stderr, "Error creating SDL error.\n");
-	return false;
-    }    
-    SDL_SetWindowFullscreen(window, SDL_WINDOW_FULLSCREEN);
-    
-
-    return true;
-}
-
-   
-  
-    
-//    SDL_RenderDrawLine(&render_grid, 100, 100, 300, 300);
-
-
 void setup(void){
     // Allocates the memory in bytes required to hold for color_buffer, using sizeof to allocate the # of bytes required
     color_buffer = (uint32_t*) malloc(sizeof(uint32_t) * window_width * window_height);
@@ -93,60 +37,20 @@ void update(void){
     //TODO
 }
 
-void render_color_buffer(void){
-    SDL_UpdateTexture(
-	    color_buffer_texture,
-	    NULL,
-	    color_buffer,
-	    (int)(window_width * sizeof(uint32_t))
-    );
-    SDL_RenderCopy(renderer, color_buffer_texture, NULL, NULL);
-}
-
-void clear_color_buffer(uint32_t color){
-    for (int y = 0; y < window_height; y++){
-	for (int x = 0; x < window_width; x++){
-	    color_buffer[(window_width * y) + x] = color;
-	}
-    }
-}
-
-void draw_rect(int x, int y, int width, int height, uint32_t color){
-    for (int j = x; j <= x + width; j ++){
-	for (int k = y; k <= y + height; k ++){
-	   color_buffer[(window_width * j) + k] = color;
-       }
-    }
-}
-
-void draw_grid(void){
-    for (int y = 0; y < window_height; y += 10){
-	for (int x = 0; x < window_width; x += 10){
-	    color_buffer[(window_width * y) + x ] = 0xFF133343;
-	}
-    }
-}
 
 void render(void){
     SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
     SDL_RenderClear(renderer);
    
     draw_grid();
-    draw_rect(100, 200, 200, 400, 0xFF998500);
+    draw_pixel(20, 20, 0xFFFFFF00);
+    //draw_rect(100, 200, 200, 400, 0xFF998500);
     render_color_buffer();
     clear_color_buffer(0xFF000000);
 
     SDL_RenderPresent(renderer);
 }
 
-void destroy_window(void){
-    free(color_buffer);
-    SDL_DestroyRenderer(renderer);
-    SDL_DestroyWindow(window);
-    SDL_Quit();
-}
-
-
 int main(void) {    
     is_running = initialize_window();
 

ycm_extra_conf.py

@@ -1,220 +0,0 @@
-# This file is NOT licensed under the GPLv3, which is the license for the rest
-# of YouCompleteMe.
-#
-# Here's the license text for this file:
-#
-# This is free and unencumbered software released into the public domain.
-#
-# Anyone is free to copy, modify, publish, use, compile, sell, or
-# distribute this software, either in source code form or as a compiled
-# binary, for any purpose, commercial or non-commercial, and by any
-# means.
-#
-# In jurisdictions that recognize copyright laws, the author or authors
-# of this software dedicate any and all copyright interest in the
-# software to the public domain. We make this dedication for the benefit
-# of the public at large and to the detriment of our heirs and
-# successors. We intend this dedication to be an overt act of
-# relinquishment in perpetuity of all present and future rights to this
-# software under copyright law.
-#
-# 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 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.
-#
-# For more information, please refer to <http://unlicense.org/>
-
-from sysconfig import get_path
-import platform
-import os.path as p
-import subprocess
-
-DIR_OF_THIS_SCRIPT = p.abspath( p.dirname( __file__ ) )
-DIR_OF_THIRD_PARTY = p.join( DIR_OF_THIS_SCRIPT, 'third_party' )
-DIR_OF_WATCHDOG_DEPS = p.join( DIR_OF_THIRD_PARTY, 'watchdog_deps' )
-SOURCE_EXTENSIONS = [ '.cpp', '.cxx', '.cc', '.c', '.m', '.mm' ]
-
-database = None
-
-# These are the compilation flags that will be used in case there's no
-# compilation database set (by default, one is not set).
-# CHANGE THIS LIST OF FLAGS. YES, THIS IS THE DROID YOU HAVE BEEN LOOKING FOR.
-flags = [
-'-Wall',
-'-Wextra',
-'-Werror',
-'-Wno-long-long',
-'-Wno-variadic-macros',
-'-fexceptions',
-'-DNDEBUG',
-# You 100% do NOT need -DUSE_CLANG_COMPLETER and/or -DYCM_EXPORT in your flags;
-# only the YCM source code needs it.
-'-DUSE_CLANG_COMPLETER',
-'-DYCM_EXPORT=',
-'-DYCM_ABSEIL_SUPPORTED',
-# THIS IS IMPORTANT! Without the '-x' flag, Clang won't know which language to
-# use when compiling headers. So it will guess. Badly. So C++ headers will be
-# compiled as C headers. You don't want that so ALWAYS specify the '-x' flag.
-# For a C project, you would set this to 'c' instead of 'c++'.
-'-x',
-'c++',
-'-isystem',
-'cpp/absl',
-'-isystem',
-'cpp/pybind11',
-'-isystem',
-'cpp/whereami',
-'-isystem',
-'cpp/BoostParts',
-'-isystem',
-get_path( 'include' ),
-'-isystem',
-'cpp/llvm/include',
-'-isystem',
-'cpp/llvm/tools/clang/include',
-'-I',
-'cpp/ycm',
-'-I',
-'cpp/ycm/ClangCompleter',
-'-isystem',
-'cpp/ycm/tests/gmock/googlemock/include',
-'-isystem',
-'cpp/ycm/tests/gmock/googletest/include',
-'-isystem',
-'cpp/ycm/benchmarks/benchmark/include',
-'-std=c++17',
-]
-
-# Set this to the absolute path to the folder (NOT the file!) containing the
-# compile_commands.json file to use that instead of 'flags'. See here for
-# more details: http://clang.llvm.org/docs/JSONCompilationDatabase.html
-#
-# You can get CMake to generate this file for you by adding:
-#   set( CMAKE_EXPORT_COMPILE_COMMANDS 1 )
-# to your CMakeLists.txt file.
-#
-# Most projects will NOT need to set this to anything; you can just change the
-# 'flags' list of compilation flags. Notice that YCM itself uses that approach.
-compilation_database_folder = ''
-
-
-def IsHeaderFile( filename ):
-  extension = p.splitext( filename )[ 1 ]
-  return extension in [ '.h', '.hxx', '.hpp', '.hh' ]
-
-
-def FindCorrespondingSourceFile( filename ):
-  if IsHeaderFile( filename ):
-    basename = p.splitext( filename )[ 0 ]
-    for extension in SOURCE_EXTENSIONS:
-      replacement_file = basename + extension
-      if p.exists( replacement_file ):
-        return replacement_file
-  return filename
-
-
-def PathToPythonUsedDuringBuild():
-  try:
-    filepath = p.join( DIR_OF_THIS_SCRIPT, 'PYTHON_USED_DURING_BUILDING' )
-    with open( filepath ) as f:
-      return f.read().strip()
-  except OSError:
-    return None
-
-
-def Settings( **kwargs ):
-  # Do NOT import ycm_core at module scope.
-  import ycm_core
-
-  global database
-  if database is None and p.exists( compilation_database_folder ):
-    database = ycm_core.CompilationDatabase( compilation_database_folder )
-
-  language = kwargs[ 'language' ]
-
-  if language == 'cfamily':
-    # If the file is a header, try to find the corresponding source file and
-    # retrieve its flags from the compilation database if using one. This is
-    # necessary since compilation databases don't have entries for header files.
-    # In addition, use this source file as the translation unit. This makes it
-    # possible to jump from a declaration in the header file to its definition
-    # in the corresponding source file.
-    filename = FindCorrespondingSourceFile( kwargs[ 'filename' ] )
-
-    if not database:
-      return {
-        'flags': flags,
-        'include_paths_relative_to_dir': DIR_OF_THIS_SCRIPT,
-        'override_filename': filename
-      }
-
-    compilation_info = database.GetCompilationInfoForFile( filename )
-    if not compilation_info.compiler_flags_:
-      return {}
-
-    # Bear in mind that compilation_info.compiler_flags_ does NOT return a
-    # python list, but a "list-like" StringVec object.
-    final_flags = list( compilation_info.compiler_flags_ )
-
-    # NOTE: This is just for YouCompleteMe; it's highly likely that your project
-    # does NOT need to remove the stdlib flag. DO NOT USE THIS IN YOUR
-    # ycm_extra_conf IF YOU'RE NOT 100% SURE YOU NEED IT.
-    try:
-      final_flags.remove( '-stdlib=libc++' )
-    except ValueError:
-      pass
-
-    return {
-      'flags': final_flags,
-      'include_paths_relative_to_dir': compilation_info.compiler_working_dir_,
-      'override_filename': filename
-    }
-
-  if language == 'python':
-    return {
-      'interpreter_path': PathToPythonUsedDuringBuild(),
-      'ls': {
-        'python': {
-          'analysis': {
-            'extraPaths': [
-              p.join( DIR_OF_THIS_SCRIPT ),
-              p.join( DIR_OF_THIRD_PARTY, 'bottle' ),
-              p.join( DIR_OF_THIRD_PARTY, 'regex-build' ),
-              p.join( DIR_OF_THIRD_PARTY, 'frozendict' ),
-              p.join( DIR_OF_THIRD_PARTY, 'jedi_deps', 'jedi' ),
-              p.join( DIR_OF_THIRD_PARTY, 'jedi_deps', 'parso' ),
-              p.join( DIR_OF_WATCHDOG_DEPS, 'watchdog', 'build', 'lib3' ),
-              p.join( DIR_OF_WATCHDOG_DEPS, 'pathtools' ),
-              p.join( DIR_OF_THIRD_PARTY, 'waitress' )
-            ],
-            'useLibraryCodeForTypes': True
-          }
-        }
-      }
-    }
-
-  return {}
-
-
-def PythonSysPath( **kwargs ):
-  sys_path = kwargs[ 'sys_path' ]
-
-  sys_path[ 0:0 ] = [ p.join( DIR_OF_THIS_SCRIPT ),
-                      p.join( DIR_OF_THIRD_PARTY, 'bottle' ),
-                      p.join( DIR_OF_THIRD_PARTY, 'regex-build' ),
-                      p.join( DIR_OF_THIRD_PARTY, 'frozendict' ),
-                      p.join( DIR_OF_THIRD_PARTY, 'jedi_deps', 'jedi' ),
-                      p.join( DIR_OF_THIRD_PARTY, 'jedi_deps', 'parso' ),
-                      p.join( DIR_OF_WATCHDOG_DEPS,
-                              'watchdog',
-                              'build',
-                              'lib3' ),
-                      p.join( DIR_OF_WATCHDOG_DEPS, 'pathtools' ),
-                      p.join( DIR_OF_THIRD_PARTY, 'waitress' ) ]
-
-  sys_path.append( p.join( DIR_OF_THIRD_PARTY, 'jedi_deps', 'numpydoc' ) )
-  return sys_path