/* ScummVM - Scumm Interpreter
 * Copyright (C) 2001-2006 The ScummVM project
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 *
 */

#include "common/stdafx.h"
#include "SDL_ImageResource.h"

namespace CEGUI {

	SDL_ImageResource::SDL_ImageResource() :
		_surface(0)
	{
	}

	SDL_Surface* SDL_ImageResource::load(WORD resourceID) {
		HRSRC resource;
		HGLOBAL resourceGlobal;
		LPVOID resourcePointer;
		DWORD resourceSize;
		SDL_RWops *surfaceData;
		HMODULE moduleHandle;

		moduleHandle = GetModuleHandle(NULL);
		resource = FindResource(moduleHandle, MAKEINTRESOURCE(resourceID), TEXT("BINARY"));
		if (!resource)
			return NULL;
		resourceSize = SizeofResource(moduleHandle, resource);
		if (!resourceSize)
			return NULL;
		resourceGlobal = LoadResource(moduleHandle, resource);
		if (!resourceGlobal)
			return NULL;
		resourcePointer = LockResource(resourceGlobal);
		if (!resourcePointer)
			return NULL;

		surfaceData = SDL_RWFromMem(resourcePointer, resourceSize);
		if (!surfaceData)
			return NULL;
		_surface = SDL_LoadBMP_RW(surfaceData, 1);

		return _surface;
	};

	SDL_Surface* SDL_ImageResource::get() {
		return _surface;
	}

	int SDL_ImageResource::height() {
		if (_surface)
			return _surface->h;
		return 0;
	}

	int SDL_ImageResource::width() {
		if (_surface)
			return _surface->w;
		return 0;
	}

	SDL_ImageResource::~SDL_ImageResource() {
		if (_surface)
			SDL_FreeSurface(_surface);
	}
}