Moved platform specific code to its own directory.

build.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 mkdir -p build
-pushd build
+pushd build > /dev/null
 rm -rf sdl_platform.dSYM
 
 # Plugin library
@@ -9,5 +9,7 @@ c++ -shared -o librt_weekend.so librt_weekend.o
 rm librt_weekend.o
 
 # Platform layer host application
-c++ -Wall -std=c++11 -g ../code/sdl_platform.cpp -o sdl_platform `sdl2-config --libs --cflags`
-popd
+c++ -Wall -std=c++11 -g ../code/platforms/sdl_platform.cpp -o sdl_platform \
+`sdl2-config --libs --cflags`
+
+popd > /dev/null

code/platforms/sdl_platform.cpp

@@ -1,6 +1,6 @@
-#include "rt_weekend.h"
+#include "../rt_weekend.h"
 
-#include <SDL.h>
+#include <SDL2/SDL.h>
 #include <stdio.h>
 #include <sys/mman.h>
 #include <stdbool.h>
@@ -14,8 +14,8 @@ const char *WindowTitle = "Ray Tracing in a Weekend";
 
 const uint32_t TARGET_FRAME_RATE = 10;
 const uint32_t TICKS_PER_FRAME = 1000 / TARGET_FRAME_RATE;
-const uint32_t WINDOW_WIDTH = 1000;
-const uint32_t WINDOW_HEIGHT = 500;
+const uint32_t WINDOW_WIDTH = 500;
+const uint32_t WINDOW_HEIGHT = 250;
 
 global_variable bool Running = true;
 global_variable sdl_offscreen_buffer GlobalBackbuffer;

code/platforms/win32_platform.cpp

@@ -1,6 +1,6 @@
 #define _CRT_SECURE_NO_WARNINGS 1
 #define SDL_MAIN_HANDLED
-#include "rt_weekend.h"
+#include "../rt_weekend.h"
 
 #include <windows.h>
 #include <SDL.h>