started rpi app

CMakeLists.txt

@@ -9,6 +9,14 @@ SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
 
 SET(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
 
+OPTION(VANILLA_BUILD_DESKTOP "Build Qt app for Linux desktop" ON)
+OPTION(VANILLA_BUILD_RPI "Build SDL2 app for Raspberry Pi" OFF)
+
 add_subdirectory(lib)
 add_subdirectory(pipe)
-add_subdirectory(app)
+if (VANILLA_BUILD_QT)
+    add_subdirectory(app)
+endif()
+if (VANILLA_BUILD_RPI)
+    add_subdirectory(rpi)
+endif()

rpi/CMakeLists.txt

@@ -0,0 +1,14 @@
+find_package(SDL2 REQUIRED)
+
+add_executable(vanilla-pi
+    main.c
+)
+
+target_include_directories(vanilla-pi PRIVATE
+    "${CMAKE_SOURCE_DIR}/lib"
+)
+
+target_link_libraries(vanilla-pi PRIVATE
+    SDL2::SDL2
+    vanilla
+)

rpi/main.c

@@ -0,0 +1,39 @@
+#define SCREEN_WIDTH    854
+#define SCREEN_HEIGHT   480
+
+#include <stdio.h>
+#include <SDL2/SDL.h>
+#include <vanilla.h>
+
+int main(int argc, const char **argv)
+{
+	SDL_Window* window = NULL;
+	SDL_Surface* screenSurface = NULL;
+	if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_GAMECONTROLLER) < 0) {
+		fprintf(stderr, "Failed to initialize SDL: %s\n", SDL_GetError());
+		return 1;
+	}
+
+	window = SDL_CreateWindow(
+				"Vanilla Pi",
+				SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
+				SCREEN_WIDTH, SCREEN_HEIGHT,
+				SDL_WINDOW_SHOWN
+			);
+	if (window == NULL) {
+		fprintf(stderr, "could not create window: %s\n", SDL_GetError());
+		return 1;
+	}
+
+	screenSurface = SDL_GetWindowSurface(window);
+	SDL_FillRect(screenSurface, NULL, SDL_MapRGB(screenSurface->format, 0xFF, 0x00, 0xFF));
+	SDL_UpdateWindowSurface(window);
+
+	vanilla_start();
+
+	SDL_Delay(10000);
+	SDL_DestroyWindow(window);
+	SDL_Quit();
+
+	return 0;
+}