Add demo for SDL_image support

demos/CMakeLists.txt

@@ -2,8 +2,11 @@ SET(DEMOS
 	sprites
 	lines
 	rendertarget
+	image
 )
 
+ADD_DEFINITIONS(-DTESTDATA_DIR="${PROJECT_SOURCE_DIR}/testdata")
+
 FOREACH(DEMO ${DEMOS})
 	ADD_EXECUTABLE(${DEMO} ${DEMO}.cc)
 	TARGET_LINK_LIBRARIES(${DEMO} SDL2pp)

demos/image.cc

@@ -0,0 +1,77 @@
+/*
+  libSDL2pp - C++ wrapper for libSDL2
+  Copyright (C) 2013-2014 Dmitry Marakasov <amdmi3@amdmi3.ru>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#include <iostream>
+
+#include <SDL2/SDL.h>
+
+#include <SDL2pp/SDL2pp.hh>
+
+using namespace SDL2pp;
+
+int Run() {
+	SDL sdl(SDL_INIT_VIDEO);
+	Window window("libSDL2pp demo: loading", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_RESIZABLE);
+	Renderer render(window, -1, SDL_RENDERER_ACCELERATED);
+
+	// Load sprite texture
+	Texture sprite(render, TESTDATA_DIR "/test.png");
+	sprite.SetBlendMode(SDL_BLENDMODE_BLEND);
+
+	render.SetDrawBlendMode(SDL_BLENDMODE_BLEND);
+
+	while (1) {
+		// Process input
+		SDL_Event event;
+		while (SDL_PollEvent(&event))
+			if (event.type == SDL_QUIT || (event.type == SDL_KEYDOWN && (event.key.keysym.sym == SDLK_ESCAPE || event.key.keysym.sym == SDLK_q)))
+				return 0;
+
+		// Clear screen
+		render.SetDrawColor(255, 255, 255);
+		render.Clear();
+
+		// Simple copy
+		float angle = SDL_GetTicks() / 5000.0 * 2.0 * M_PI;
+		render.Copy(sprite, Rect::Null(), Rect(320 - 64, 240 - 64, 128, 128), angle / M_PI * 180.0);
+		render.Copy(sprite, Rect::Null(), Rect(320 - 32 + sin(angle) * 40, 240 - 32 + cos(angle) * 40, 64, 64));
+		render.Copy(sprite, Rect::Null(), Rect(320 - 32 - sin(angle) * 40, 240 - 32 - cos(angle) * 40, 64, 64));
+
+		render.Present();
+
+		// Frame limiter
+		SDL_Delay(1);
+	}
+
+	return 0;
+}
+
+int main() {
+	try {
+		return Run();
+	} catch (Exception& e) {
+		std::cerr << "Error: " << e.what() << " (" << e.GetSDLError() << ")" << std::endl;
+	} catch (std::exception& e) {
+		std::cerr << "Error: " << e.what() << std::endl;
+	}
+
+	return -1;
+}