update SDL2 video example with Gradle build

README.md

@@ -178,7 +178,7 @@ It is possible to generate project for Visual Studio:
 
 Compiled binary will be stored in:
 
-    build\binaries\mainExecutable
+    build/binaries/mainExecutable
 
 node
 ----

sdl/01-sdl2-init/build.gradle

@@ -21,7 +21,6 @@ executables {
             if (toolChain in VisualCpp) {
                 cCompiler.args "/MD"
                 linker.args "/SUBSYSTEM:CONSOLE", "/LIBPATH:../build/SDL2-2.0.3/lib/x86/", "SDL2main.lib", "SDL2.lib"
-                //linker.args "/SUBSYSTEM:WINDOWS", "/LIBPATH:../build/SDL2-2.0.3/lib/x86/", "SDL2.lib"
             }
         }
     }

sdl/02-sdl2-video/02-sdl2-video.cpp

@@ -1,52 +0,0 @@
-// 02-sdl2-video.cpp : SDL2 example - initialize video and display image
-//
-
-#include <stdio.h>
-#include <tchar.h>
-#include "SDL.h"
-
-int _tmain(int argc, _TCHAR* argv[]) {	
-	if (SDL_Init(SDL_INIT_EVERYTHING) == -1){
-		printf("Error initializing SDL:  %s\n", SDL_GetError());
-		return 1;
-	}
-
-	SDL_Window *win = nullptr;
-	win = SDL_CreateWindow("Hello World!", 100, 100, 640, 480, SDL_WINDOW_SHOWN);
-	if (win == nullptr){
-		printf("%i\n", SDL_GetError());
-		return 1;
-	}
-
-	SDL_Renderer *ren = nullptr;
-	ren = SDL_CreateRenderer(win, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
-	if (ren == nullptr){
-		printf("%i\n", SDL_GetError());
-		return 1;
-	}
-
-	SDL_Surface *bmp = nullptr;
-	bmp = SDL_LoadBMP("smajlik.bmp");
-	if (bmp == nullptr){
-		printf("%i\n", SDL_GetError());
-		return 1;
-	}
-	
-	SDL_Texture *tex = nullptr;
-	tex = SDL_CreateTextureFromSurface(ren, bmp);
-	SDL_FreeSurface(bmp);
-
-	SDL_RenderClear(ren);
-	SDL_RenderCopy(ren, tex, NULL, NULL);
-	SDL_RenderPresent(ren);
-
-	SDL_Delay(2000);
-
-	SDL_DestroyTexture(tex);
-	SDL_DestroyRenderer(ren);
-	SDL_DestroyWindow(win);
-
-	SDL_Quit();
-	return 0;
-}
-

sdl/02-sdl2-video/build.gradle

@@ -0,0 +1,28 @@
+apply plugin: 'c'
+apply plugin: 'visual-studio'
+
+sources {
+    main {
+        c {
+            source {
+                // Include just source, avoid including *.swp and other helper files
+                include "**/*.c"
+            }
+            exportedHeaders {
+                srcDir "../build/SDL2-2.0.3/include"
+            }
+        }
+    }
+}
+
+executables {
+    main {
+        binaries.all {
+            if (toolChain in VisualCpp) {
+                cCompiler.args "/MD"
+                linker.args "/SUBSYSTEM:CONSOLE", "/LIBPATH:../build/SDL2-2.0.3/lib/x86/", "SDL2main.lib", "SDL2.lib"
+            }
+        }
+    }
+}
+

sdl/02-sdl2-video/src/main/c/sdl2-video.c

@@ -0,0 +1,52 @@
+// 02-sdl2-video.cpp : SDL2 example - initialize video and display image
+//
+
+#include <stdio.h>
+#include "SDL.h"
+
+int main(int argc, char* argv[]) {
+    SDL_Window *win = NULL;
+    SDL_Renderer *ren = NULL;
+    SDL_Surface *bmp = NULL;
+    SDL_Texture *tex = NULL;
+
+    if (SDL_Init(SDL_INIT_EVERYTHING) == -1){
+        printf("Error initializing SDL:  %s\n", SDL_GetError());
+        return 1;
+    }
+
+    win = SDL_CreateWindow("Hello World!", 100, 100, 640, 480, SDL_WINDOW_SHOWN);
+    if (win == NULL){
+        printf("%s\n", SDL_GetError());
+        return 2;
+    }
+
+    ren = SDL_CreateRenderer(win, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
+    if (ren == NULL){
+        printf("%s\n", SDL_GetError());
+        return 3;
+    }
+
+    bmp = SDL_LoadBMP("./smajlik.bmp");
+    if (bmp == NULL){
+        printf("%s\n", SDL_GetError());
+        return 4;
+    }
+    
+    tex = SDL_CreateTextureFromSurface(ren, bmp);
+    SDL_FreeSurface(bmp);
+
+    SDL_RenderClear(ren);
+    SDL_RenderCopy(ren, tex, NULL, NULL);
+    SDL_RenderPresent(ren);
+
+    SDL_Delay(2000);
+
+    SDL_DestroyTexture(tex);
+    SDL_DestroyRenderer(ren);
+    SDL_DestroyWindow(win);
+
+    SDL_Quit();
+    return 0;
+}
+