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	diff --git a/util/allegro5/bitmap.cpp b/util/allegro5/bitmap.cpp
	index 6b0bd43a..65e42ca3 100644
	--- a/util/allegro5/bitmap.cpp
	+++ b/util/allegro5/bitmap.cpp
	@@ -1,1054 +1,1054 @@
	#include <sstream>
	#include <allegro5/allegro5.h>
	#include <allegro5/allegro_memfile.h>
	#include <allegro5/allegro_primitives.h>
	#include "util/debug.h"
	#include "util/thread.h"

	namespace Graphics{

	/* it doesnt look like we need to pack colors into 16-bit values */
	#if 0
	static const int rgb_r_shift_16 = 0;
	static const int rgb_g_shift_16 = 5;
	static const int rgb_b_shift_16 = 11;

	static inline int pack565(unsigned char red, unsigned char green, unsigned char blue){
	return (((red >> 3) << rgb_r_shift_16) \|
	((green >> 2) << rgb_g_shift_16) \|
	((blue >> 3) << rgb_b_shift_16));
	}

	/* from allegro4 */
	static inline void unpack565(int color, unsigned char * red, unsigned char * green, unsigned char * blue){
	static int _rgb_scale_5[32] = {
	0, 8, 16, 24, 33, 41, 49, 57,
	66, 74, 82, 90, 99, 107, 115, 123,
	132, 140, 148, 156, 165, 173, 181, 189,
	198, 206, 214, 222, 231, 239, 247, 255
	};

	static int _rgb_scale_6[64] = {
	0, 4, 8, 12, 16, 20, 24, 28,
	32, 36, 40, 44, 48, 52, 56, 60,
	65, 69, 73, 77, 81, 85, 89, 93,
	97, 101, 105, 109, 113, 117, 121, 125,
	130, 134, 138, 142, 146, 150, 154, 158,
	162, 166, 170, 174, 178, 182, 186, 190,
	195, 199, 203, 207, 211, 215, 219, 223,
	227, 231, 235, 239, 243, 247, 251, 255
	};

	*red = _rgb_scale_5[(color >> rgb_r_shift_16) & 0x1F];
	*green = _rgb_scale_6[(color >> rgb_g_shift_16) & 0x3F];
	*blue = _rgb_scale_5[(color >> rgb_b_shift_16) & 0x1F];
	}
	#endif

	enum BlendingType{
	Translucent,
	Add,
	Difference,
	Multiply
	};

	struct BlendingData{
	BlendingData():
	red(0), green(0), blue(0), alpha(0), type(Translucent){
	}

	int red, green, blue, alpha;
	BlendingType type;
	};

	static BlendingData globalBlend;

	/* must be a pointer so it can be created dynamically after allegro init */
	// Util::Thread::LockObject * allegroLock;

	Color makeColorAlpha(unsigned char red, unsigned char green, unsigned char blue, unsigned char alpha){
	return al_map_rgba(red, blue, green, alpha);
	}

	Color MaskColor(){
	static Color mask = makeColorAlpha(0, 0, 0, 0);
	return mask;
	}

	Color getBlendColor(){
	return makeColorAlpha(255, 255, 255, globalBlend.alpha);
	}

	Color doTransBlend(const Color & color, int alpha){
	unsigned char red, green, blue;
	al_unmap_rgb(color, &red, &green, &blue);
	return makeColorAlpha(red, green, blue, alpha);
	/*
	red *= alpha_f;
	green *= alpha_f;
	blue *= alpha_f;
	return al_map_rgb_f(red, green, blue);
	*/
	}

	Color transBlendColor(const Color & color){
	return doTransBlend(color, globalBlend.alpha);
	}

	class Blender{
	public:
	Blender(){
	}

	virtual ~Blender(){
	/* default is to draw the source and ignore the destination */
	al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ZERO);
	}
	};

	class MaskedBlender: public Blender {
	public:
	MaskedBlender(){
	al_set_blender(ALLEGRO_ADD, ALLEGRO_ALPHA, ALLEGRO_INVERSE_ALPHA);
	}
	};

	class TransBlender: public Blender {
	public:
	TransBlender(){
	switch (globalBlend.type){
	case Translucent: al_set_blender(ALLEGRO_ADD, ALLEGRO_ALPHA, ALLEGRO_INVERSE_ALPHA); break;
	case Add: al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ONE); break;
	- case Multiply: al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ZERO); break;
	+ case Multiply: al_set_blender(ALLEGRO_DEST_MINUS_SRC, ALLEGRO_ONE, ALLEGRO_ONE); break;
	case Difference: al_set_blender(ALLEGRO_DEST_MINUS_SRC, ALLEGRO_ONE, ALLEGRO_ONE); break;
	}
	}
	};

	static const int WINDOWED = 0;
	static const int FULLSCREEN = 1;

	static Bitmap * Scaler = NULL;

	Bitmap::Bitmap():
	own(NULL),
	mustResize(false),
	bit8MaskColor(makeColor(0, 0, 0)){
	/* TODO */
	}

	Bitmap::Bitmap( const char * load_file ):
	own(NULL),
	mustResize(false),
	bit8MaskColor(makeColor(0, 0, 0)){
	internalLoadFile(load_file);
	}

	Bitmap::Bitmap( const std::string & load_file ):
	own(NULL),
	mustResize(false),
	bit8MaskColor(makeColor(0, 0, 0)){
	internalLoadFile(load_file.c_str());
	}

	Bitmap::Bitmap(ALLEGRO_BITMAP * who, bool deep_copy):
	own(NULL),
	mustResize(false),
	bit8MaskColor(makeColor(0, 0, 0)){
	if (deep_copy){
	ALLEGRO_BITMAP * clone = al_clone_bitmap(who);
	getData().setBitmap(clone);
	own = new int;
	*own = 1;
	} else {
	getData().setBitmap(who);
	}
	}

	Bitmap::Bitmap(int width, int height):
	own(NULL),
	mustResize(false),
	bit8MaskColor(makeColor(0, 0, 0)){
	ALLEGRO_BITMAP * bitmap = al_create_bitmap(width, height);
	if (bitmap == NULL){
	std::ostringstream out;
	out << "Could not create bitmap with dimensions " << width << ", " << height;
	throw BitmapException(__FILE__, __LINE__, out.str());
	}
	getData().setBitmap(bitmap);
	own = new int;
	*own = 1;
	}

	Bitmap::Bitmap( const Bitmap & copy, bool deep_copy):
	own(NULL),
	mustResize(false),
	bit8MaskColor(copy.bit8MaskColor){
	if (deep_copy){
	ALLEGRO_BITMAP * clone = al_clone_bitmap(copy.getData().getBitmap());
	getData().setBitmap(clone);
	own = new int;
	*own = 1;
	} else {
	getData().setBitmap(copy.getData().getBitmap());
	own = copy.own;
	if (own){
	*own += 1;
	}
	}
	}

	void Bitmap::convertToVideo(){
	ALLEGRO_BITMAP * original = getData().getBitmap();
	ALLEGRO_BITMAP * copy = al_clone_bitmap(original);
	if (copy == NULL){
	throw BitmapException(__FILE__, __LINE__, "Could not create video bitmap");
	}
	releaseInternalBitmap();
	getData().setBitmap(copy);
	own = new int;
	*own = 1;
	}

	void changeTarget(const Bitmap & from, const Bitmap & who){
	al_set_target_bitmap(who.getData().getBitmap());
	if ((al_get_bitmap_flags(who.getData().getBitmap()) & ALLEGRO_VIDEO_BITMAP) &&
	(al_get_bitmap_flags(from.getData().getBitmap()) & ALLEGRO_MEMORY_BITMAP)){
	((Bitmap&) from).convertToVideo();
	if (&from == &who){
	al_set_target_bitmap(who.getData().getBitmap());
	}
	}
	}

	void changeTarget(const Bitmap * from, const Bitmap & who){
	changeTarget(*from, who);
	}

	void changeTarget(const Bitmap & from, const Bitmap * who){
	changeTarget(from, *who);
	}

	void changeTarget(const Bitmap * from, const Bitmap * who){
	changeTarget(from, who);
	}

	enum Format{
	PNG,
	GIF,
	};

	void dumpColor(const Color & color){
	unsigned char red, green, blue, alpha;
	al_unmap_rgba(color, &red, &green, &blue, &alpha);
	Global::debug(0) << "red " << (int) red << " green " << (int) green << " blue " << (int) blue << " alpha " << (int) alpha << std::endl;
	}

	Bitmap Bitmap::memoryPCX(unsigned char * const data, const int length, const bool mask){
	ALLEGRO_FILE * memory = al_open_memfile((void *) data, length, "r");
	ALLEGRO_BITMAP * pcx = al_load_bitmap_f(memory, ".pcx");
	al_fclose(memory);
	// dumpColor(al_get_pixel(pcx, 0, 0));
	Bitmap out(pcx);
	out.set8BitMaskColor(makeColorAlpha(255, 255, 255, 255));
	return out;
	}

	static bool isVideoBitmap(ALLEGRO_BITMAP * bitmap){
	return (al_get_bitmap_flags(bitmap) & ALLEGRO_VIDEO_BITMAP) &&
	!(al_get_bitmap_flags(bitmap) & ALLEGRO_MEMORY_BITMAP);
	}

	void Bitmap::replaceColor(Color original, Color replaced){
	changeTarget(this, this);

	if (isVideoBitmap(getData().getBitmap())){
	al_lock_bitmap(getData().getBitmap(), ALLEGRO_PIXEL_FORMAT_ANY, ALLEGRO_LOCK_READWRITE);
	}

	for (int x = 0; x < getWidth(); x++){
	for (int y = 0; y < getHeight(); y++){
	Color pixel = getPixel(x, y);
	if (pixel == original){
	al_put_pixel(x, y, replaced);
	}
	}
	}

	if (isVideoBitmap(getData().getBitmap())){
	al_unlock_bitmap(getData().getBitmap());
	}
	}

	static ALLEGRO_BITMAP * memoryGIF(const char * data, int length){
	ALLEGRO_FILE * memory = al_open_memfile((void *) data, length, "r");
	al_fclose(memory);

	/* FIXME: get gif addon for a5 */

	#if 0
	RGB * palette = NULL;
	/* algif will close the packfile for us in both error and success cases */
	BITMAP * gif = load_gif_packfile(pack, palette);
	if (!gif){
	al_fclose(memory);
	// pack_fclose(pack);
	ostringstream out;
	out <<"Could not load gif from memory: " << (void*) data << " length " << length;
	throw LoadException(__FILE__, __LINE__, out.str());
	}

	BITMAP * out = create_bitmap(gif->w, gif->h);
	blit(gif, out, 0, 0, 0, 0, gif->w, gif->h);
	destroy_bitmap(gif);
	// pack_fclose(pack);
	#endif

	ALLEGRO_BITMAP * out = NULL;

	return out;
	}

	void Bitmap::internalLoadFile(const char * path){
	this->path = path;
	ALLEGRO_BITMAP * loaded = al_load_bitmap(path);
	if (loaded == NULL){
	std::ostringstream out;
	out << "Could not load file '" << path << "'";
	throw BitmapException(__FILE__, __LINE__, out.str());
	}
	al_convert_mask_to_alpha(loaded, al_map_rgb(255, 0, 255));
	getData().setBitmap(loaded);
	own = new int;
	*own = 1;
	}

	static ALLEGRO_BITMAP * load_bitmap_from_memory(const char * data, int length, Format type){
	switch (type){
	case PNG : {
	break;
	}
	case GIF : {
	return memoryGIF(data, length);
	break;
	}
	}
	throw Exception::Base(__FILE__, __LINE__);
	}

	Bitmap::Bitmap(const char * data, int length):
	own(NULL),
	mustResize(false),
	bit8MaskColor(makeColor(0, 0, 0)){
	Format type = GIF;
	getData().setBitmap(load_bitmap_from_memory(data, length, type));
	if (getData().getBitmap() == NULL){
	std::ostringstream out;
	out << "Could not create bitmap from memory";
	throw BitmapException(__FILE__, __LINE__, out.str());
	}
	own = new int;
	*own = 1;
	}

	Bitmap::Bitmap( const Bitmap & copy, int x, int y, int width, int height ):
	own(NULL),
	mustResize(false),
	bit8MaskColor(copy.bit8MaskColor){
	path = copy.getPath();
	ALLEGRO_BITMAP * his = copy.getData().getBitmap();
	if (x < 0)
	x = 0;
	if (y < 0)
	y = 0;
	if (width + x > al_get_bitmap_width(his)){
	width = al_get_bitmap_width(his) - x;
	}
	if (height + y > al_get_bitmap_height(his)){
	height = al_get_bitmap_height(his) - y;
	}

	ALLEGRO_BITMAP * sub = al_create_sub_bitmap(his, x, y, width, height);
	getData().setBitmap(sub);

	own = new int;
	*own = 1;
	}

	int Bitmap::getWidth() const {
	if (getData().getBitmap() != NULL){
	return al_get_bitmap_width(getData().getBitmap());
	}

	return 0;
	}

	int getRed(Color color){
	unsigned char red, green, blue;
	al_unmap_rgb(color, &red, &green, &blue);
	return red;
	}

	int getGreen(Color color){
	unsigned char red, green, blue;
	al_unmap_rgb(color, &red, &green, &blue);
	return green;
	}

	int getBlue(Color color){
	unsigned char red, green, blue;
	al_unmap_rgb(color, &red, &green, &blue);
	return blue;
	}

	Color makeColor(int red, int blue, int green){
	return al_map_rgb(red, blue, green);
	}

	int Bitmap::getHeight() const {
	if (getData().getBitmap() != NULL){
	return al_get_bitmap_height(getData().getBitmap());
	}

	return 0;
	}

	void initializeExtraStuff(){
	// al_set_new_bitmap_format(ALLEGRO_PIXEL_FORMAT_RGB_565);
	// allegroLock = new Util::Thread::LockObject();
	}

	int setGraphicsMode(int mode, int width, int height){
	initializeExtraStuff();
	switch (mode){
	case FULLSCREEN: {
	al_set_new_display_flags(ALLEGRO_FULLSCREEN);
	break;
	}
	case WINDOWED: {
	al_set_new_display_flags(ALLEGRO_WINDOWED \| ALLEGRO_RESIZABLE);
	break;
	}
	default: break;
	}
	ALLEGRO_DISPLAY * display = al_create_display(width, height);
	if (display == NULL){
	std::ostringstream out;
	out << "Could not create display with dimensions " << width << ", " << height;
	throw BitmapException(__FILE__, __LINE__, out.str());
	}
	Screen = new Bitmap(al_get_backbuffer(display));
	Scaler = new Bitmap(width, height);
	/* default drawing mode */
	al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ZERO);
	return 0;
	}

	void Bitmap::lock() const {
	al_lock_bitmap(getData().getBitmap(), ALLEGRO_PIXEL_FORMAT_ANY, ALLEGRO_LOCK_READONLY);
	}

	void Bitmap::unlock() const {
	al_unlock_bitmap(getData().getBitmap());
	}

	Color Bitmap::getPixel(const int x, const int y) const {
	return al_get_pixel(getData().getBitmap(), x, y);
	}

	void Bitmap::putPixel(int x, int y, Color pixel) const {
	changeTarget(this, this);
	al_put_pixel(x, y, pixel);
	}

	void Bitmap::putPixelNormal(int x, int y, Color col) const {
	putPixel(x, y, col);
	}

	void Bitmap::fill(Color color) const {
	changeTarget(this, this);
	al_clear_to_color(color);
	}

	void Bitmap::startDrawing() const {
	}

	void Bitmap::endDrawing() const {
	}

	void TranslucentBitmap::startDrawing() const {
	al_set_blender(ALLEGRO_ADD, ALLEGRO_ALPHA, ALLEGRO_INVERSE_ALPHA);
	}

	void TranslucentBitmap::endDrawing() const {
	al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ZERO);
	}

	Color Bitmap::blendColor(const Color & input) const {
	return input;
	}

	Color TranslucentBitmap::blendColor(const Color & color) const {
	unsigned char red, green, blue;
	unsigned char alpha = globalBlend.alpha;
	al_unmap_rgb(color, &red, &green, &blue);
	return makeColorAlpha(red, green, blue, alpha);
	}

	void Bitmap::Stretch( const Bitmap & where, const int sourceX, const int sourceY, const int sourceWidth, const int sourceHeight, const int destX, const int destY, const int destWidth, const int destHeight ) const {
	/* TODO */
	}

	void Bitmap::StretchBy2( const Bitmap & where ){
	/* TODO */
	}

	void Bitmap::StretchBy4( const Bitmap & where ){
	/* TODO */
	}

	void Bitmap::drawRotate( const int x, const int y, const int angle, const Bitmap & where ){
	/* TODO */
	}

	void Bitmap::drawPivot( const int centerX, const int centerY, const int x, const int y, const int angle, const Bitmap & where ){
	/* TODO */
	}

	void Bitmap::drawPivot( const int centerX, const int centerY, const int x, const int y, const int angle, const double scale, const Bitmap & where ){
	/* TODO */
	}

	void Bitmap::drawStretched( const int x, const int y, const int new_width, const int new_height, const Bitmap & who ) const {
	/* FIXME */
	changeTarget(this, who);
	MaskedBlender blender;
	al_draw_scaled_bitmap(getData().getBitmap(), 0, 0, getWidth(), getHeight(), x, y, new_width, new_height, 0);
	#if 0
	ALLEGRO_TRANSFORM save;
	al_copy_transform(&save, al_get_current_transform());
	ALLEGRO_TRANSFORM stretch;
	al_identity_transform(&stretch);
	// al_translate_transform(&stretch, x / ((double) new_width / getWidth()), y / ((double) new_height / getHeight()));
	al_scale_transform(&stretch, (double) new_width / getWidth(), (double) new_height / getHeight());
	al_translate_transform(&stretch, x, y);
	// al_translate_transform(&stretch, -x / ((double) new_width / getWidth()), -y / ((double) (new_height / getHeight())));
	al_use_transform(&stretch);
	/* any source pixels with an alpha value of 0 will be masked */
	// al_draw_bitmap(getData().getBitmap(), x, y, 0);
	al_draw_bitmap(getData().getBitmap(), 0, 0, 0);
	al_use_transform(&save);
	#endif
	}

	void Bitmap::Blit(const int mx, const int my, const int width, const int height, const int wx, const int wy, const Bitmap & where) const {
	// double start = al_get_time();
	changeTarget(this, where);
	// al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ZERO);
	/*
	if (&where != Screen){
	al_draw_bitmap(getData().getBitmap(), wx, wy, 0);
	}
	*/

	/* FIXME: deal with mx, my, width, height */

	// al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ZERO);
	al_draw_bitmap(getData().getBitmap(), wx, wy, 0);
	/*
	double end = al_get_time();
	Global::debug(0) << "Draw in " << (end - start) << " seconds" << std::endl;
	*/
	}

	void Bitmap::drawHFlip(const int x, const int y, const Bitmap & where) const {
	changeTarget(this, where);
	MaskedBlender blender;
	/* any source pixels with an alpha value of 0 will be masked */
	al_draw_bitmap(getData().getBitmap(), x, y, ALLEGRO_FLIP_HORIZONTAL);
	}

	void Bitmap::drawHFlip(const int x, const int y, Filter * filter, const Bitmap & where) const {
	/* FIXME: deal with filter */
	changeTarget(this, where);
	MaskedBlender blender;
	/* any source pixels with an alpha value of 0 will be masked */
	al_draw_bitmap(getData().getBitmap(), x, y, ALLEGRO_FLIP_HORIZONTAL);
	}

	void Bitmap::drawVFlip( const int x, const int y, const Bitmap & where ) const {
	changeTarget(this, where);
	MaskedBlender blender;
	/* any source pixels with an alpha value of 0 will be masked */
	al_draw_bitmap(getData().getBitmap(), x, y, ALLEGRO_FLIP_VERTICAL);
	}

	void Bitmap::drawVFlip( const int x, const int y, Filter * filter, const Bitmap & where ) const {
	/* FIXME: deal with filter */
	changeTarget(this, where);
	MaskedBlender blender;
	/* any source pixels with an alpha value of 0 will be masked */
	al_draw_bitmap(getData().getBitmap(), x, y, ALLEGRO_FLIP_VERTICAL);
	}

	void Bitmap::drawHVFlip( const int x, const int y, const Bitmap & where ) const {
	changeTarget(this, where);
	MaskedBlender blender;
	/* any source pixels with an alpha value of 0 will be masked */
	al_draw_bitmap(getData().getBitmap(), x, y, ALLEGRO_FLIP_VERTICAL \| ALLEGRO_FLIP_HORIZONTAL);
	}

	void Bitmap::drawHVFlip( const int x, const int y, Filter * filter, const Bitmap & where ) const {
	/* FIXME: deal with filter */
	changeTarget(this, where);
	MaskedBlender blender;
	/* any source pixels with an alpha value of 0 will be masked */
	al_draw_bitmap(getData().getBitmap(), x, y, ALLEGRO_FLIP_VERTICAL \| ALLEGRO_FLIP_HORIZONTAL);
	}

	void Bitmap::BlitMasked(const int mx, const int my, const int width, const int height, const int wx, const int wy, const Bitmap & where) const {
	/* TODO */
	}

	void Bitmap::BlitToScreen(const int upper_left_x, const int upper_left_y) const {
	#if 0
	if (getWidth() != Screen->getWidth() \|\| getHeight() != Screen->getHeight()){
	/*
	this->Blit( upper_left_x, upper_left_y, *Buffer );
	Buffer->Stretch(*Scaler);
	Scaler->Blit(0, 0, 0, 0, *Screen);
	*/

	this->Stretch(*Scaler, 0, 0, getWidth(), getHeight(), upper_left_x, upper_left_y, Scaler->getWidth(), Scaler->getHeight());
	Scaler->Blit(0, 0, 0, 0, *Screen);
	} else {
	this->Blit(upper_left_x, upper_left_y, *Screen);
	}
	#endif
	/*
	if (&where == Screen){
	al_flip_display();
	}
	*/
	changeTarget(this, Screen);
	al_flip_display();
	}

	void Bitmap::BlitAreaToScreen(const int upper_left_x, const int upper_left_y) const {
	changeTarget(this, Screen);
	al_flip_display();
	}

	void Bitmap::draw(const int x, const int y, const Bitmap & where) const {
	// TransBlender blender;
	changeTarget(this, where);
	MaskedBlender blender;
	/* any source pixels with an alpha value of 0 will be masked */
	al_draw_bitmap(getData().getBitmap(), x, y, 0);
	}

	void Bitmap::draw(const int x, const int y, Filter * filter, const Bitmap & where) const {
	/* FIXME */
	changeTarget(this, where);
	MaskedBlender blender;
	/* any source pixels with an alpha value of 0 will be masked */
	al_draw_bitmap(getData().getBitmap(), x, y, 0);

	}

	void Bitmap::hLine(const int x1, const int y, const int x2, const Color color) const {
	line(x1, y, x2, y, color);
	}

	void Bitmap::vLine(const int y1, const int x, const int y2, const Color color) const {
	line(x, y1, x, y2, color);
	}

	void Bitmap::arc(const int x, const int y, const double ang1, const double ang2, const int radius, const Color color ) const {
	changeTarget(this, this);
	al_draw_arc(x, y, radius, ang1 - Util::pi/2, ang2 - ang1, color, 1);
	}

	void TranslucentBitmap::arc(const int x, const int y, const double ang1, const double ang2, const int radius, const Color color ) const {
	TransBlender blender;
	Bitmap::arc(x, y, ang1, ang2, radius, transBlendColor(color));
	/*
	changeTarget(this);
	al_draw_arc(x, y, radius, ang1 + S_PI/2, ang2 - ang1, doTransBlend(color, globalBlend.alpha), 0);
	*/
	}

	/* from http://www.allegro.cc/forums/thread/605684/892721#target */
	void al_draw_filled_pieslice(float cx, float cy, float r, float start_theta,
	float delta_theta, ALLEGRO_COLOR color){
	ALLEGRO_VERTEX vertex_cache[ALLEGRO_VERTEX_CACHE_SIZE];
	int num_segments, ii;

	num_segments = fabs(delta_theta / (2 * ALLEGRO_PI) * ALLEGRO_PRIM_QUALITY * sqrtf(r));

	if (num_segments < 2)
	return;

	if (num_segments >= ALLEGRO_VERTEX_CACHE_SIZE) {
	num_segments = ALLEGRO_VERTEX_CACHE_SIZE - 1;
	}

	al_calculate_arc(&(vertex_cache[1].x), sizeof(ALLEGRO_VERTEX), cx, cy, r, r, start_theta, delta_theta, 0, num_segments);
	vertex_cache[0].x = cx; vertex_cache[0].y = cy;

	for (ii = 0; ii < num_segments + 1; ii++) {
	vertex_cache[ii].color = color;
	vertex_cache[ii].z = 0;
	}

	al_draw_prim(vertex_cache, NULL, NULL, 0, num_segments + 1, ALLEGRO_PRIM_TRIANGLE_FAN);
	// al_draw_prim(vertex_cache, NULL, NULL, 0, 3, ALLEGRO_PRIM_TRIANGLE_FAN);
	}

	void Bitmap::arcFilled(const int x, const int y, const double ang1, const double ang2, const int radius, const Color color ) const {
	changeTarget(this, this);
	al_draw_filled_pieslice(x, y, radius, ang1 - Util::pi/2, ang2 - ang1, color);
	}

	void TranslucentBitmap::arcFilled(const int x, const int y, const double ang1, const double ang2, const int radius, const Color color ) const {
	TransBlender blender;
	Bitmap::arcFilled(x, y, ang1, ang2, radius, transBlendColor(color));
	}

	void Bitmap::floodfill( const int x, const int y, const Color color ) const {
	/* TODO */
	}

	void Bitmap::line(const int x1, const int y1, const int x2, const int y2, const Color color) const {
	al_draw_line(x1, y1, x2, y2, color, 1.5);
	}

	void TranslucentBitmap::line(const int x1, const int y1, const int x2, const int y2, const Color color) const {
	TransBlender blender;
	Bitmap::line(x1, y1, x2, y2, transBlendColor(color));
	}

	void Bitmap::circleFill(int x, int y, int radius, Color color) const {
	changeTarget(this, this);
	al_draw_filled_circle(x, y, radius, color);
	}

	void Bitmap::circle(int x, int y, int radius, Color color) const {
	changeTarget(this, this);
	al_draw_circle(x, y, radius, color, 0);
	}

	void Bitmap::rectangle( int x1, int y1, int x2, int y2, Color color ) const {
	changeTarget(this, this);
	al_draw_rectangle(x1, y1, x2, y2, color, 0);
	}

	void Bitmap::rectangleFill( int x1, int y1, int x2, int y2, Color color ) const {
	changeTarget(this, this);
	al_draw_filled_rectangle(x1 - 0.5, y1 - 0.5, x2 + 0.5, y2 + 0.5, color);
	}

	void Bitmap::triangle( int x1, int y1, int x2, int y2, int x3, int y3, Color color ) const {
	changeTarget(this, this);
	al_draw_filled_triangle(x1, y1, x2, y2, x3, y3, color);
	}

	void Bitmap::polygon( const int * verts, const int nverts, const Color color ) const {
	/* TODO */
	}

	void Bitmap::ellipse( int x, int y, int rx, int ry, Color color ) const {
	changeTarget(this, this);
	al_draw_ellipse(x, y, rx, ry, color, 0);
	}

	void Bitmap::ellipseFill( int x, int y, int rx, int ry, Color color ) const {
	changeTarget(this, this);
	al_draw_filled_ellipse(x, y, rx, ry, color);
	}

	void Bitmap::applyTrans(const Color color) const {
	TransBlender blender;
	changeTarget(this, this);
	al_draw_filled_rectangle(0, 0, getWidth(), getHeight(), transBlendColor(color));
	}

	void Bitmap::light(int x, int y, int width, int height, int start_y, int focus_alpha, int edge_alpha, int focus_color, Color edge_color) const {
	/* TODO */
	}

	void Bitmap::drawCharacter( const int x, const int y, const int color, const int background, const Bitmap & where ) const {
	/* TODO */
	}

	void Bitmap::save( const std::string & str ) const {
	/* TODO */
	}

	void Bitmap::readLine(std::vector<Color> & line, int y){
	/* TODO */
	}

	void TranslucentBitmap::draw(const int x, const int y, const Bitmap & where) const {
	changeTarget(this, where);
	TransBlender blender;
	al_draw_tinted_bitmap(getData().getBitmap(), getBlendColor(), x, y, 0);
	}

	void LitBitmap::draw( const int x, const int y, const Bitmap & where ) const {
	/* TODO */
	}

	void LitBitmap::draw( const int x, const int y, Filter * filter, const Bitmap & where ) const {
	/* TODO */
	}

	void LitBitmap::drawHFlip( const int x, const int y, const Bitmap & where ) const {
	/* TODO */
	}

	void LitBitmap::drawHFlip( const int x, const int y, Filter * filter, const Bitmap & where ) const {
	/* TODO */
	}

	void LitBitmap::drawVFlip( const int x, const int y, const Bitmap & where ) const {
	/* TODO */
	}

	void LitBitmap::drawVFlip( const int x, const int y, Filter * filter, const Bitmap & where ) const {
	/* TODO */
	}

	void LitBitmap::drawHVFlip( const int x, const int y, const Bitmap & where ) const {
	/* TODO */
	}

	void LitBitmap::drawHVFlip( const int x, const int y, Filter * filter, const Bitmap & where ) const {
	/* TODO */
	}

	void TranslucentBitmap::draw( const int x, const int y, Filter * filter, const Bitmap & where ) const {
	changeTarget(this, where);
	TransBlender blender;
	al_draw_tinted_bitmap(getData().getBitmap(), getBlendColor(), x, y, 0);
	}

	void TranslucentBitmap::drawHFlip( const int x, const int y, const Bitmap & where ) const {
	/* TODO */
	}

	void TranslucentBitmap::drawHFlip( const int x, const int y, Filter * filter, const Bitmap & where ) const {
	/* TODO */
	}

	void TranslucentBitmap::drawVFlip( const int x, const int y, const Bitmap & where ) const {
	/* TODO */
	}

	void TranslucentBitmap::drawVFlip( const int x, const int y, Filter * filter, const Bitmap & where ) const {
	/* TODO */
	}

	void TranslucentBitmap::drawHVFlip( const int x, const int y, const Bitmap & where ) const {
	/* TODO */
	}

	void TranslucentBitmap::drawHVFlip( const int x, const int y, Filter * filter,const Bitmap & where ) const {
	/* TODO */
	}

	void TranslucentBitmap::hLine( const int x1, const int y, const int x2, const Color color ) const {
	/* TODO */
	}

	void TranslucentBitmap::circleFill(int x, int y, int radius, Color color) const {
	TransBlender blender;
	Bitmap::circleFill(x, y, radius, doTransBlend(color, globalBlend.alpha));
	}

	void TranslucentBitmap::putPixelNormal(int x, int y, Color color) const {
	TransBlender blender;
	Bitmap::putPixelNormal(x, y, doTransBlend(color, globalBlend.alpha));
	}

	void TranslucentBitmap::rectangle( int x1, int y1, int x2, int y2, Color color ) const {
	TransBlender blender;
	Bitmap::rectangle(x1, y1, x2, y2, doTransBlend(color, globalBlend.alpha));
	}

	void TranslucentBitmap::rectangleFill(int x1, int y1, int x2, int y2, Color color) const {
	TransBlender blender;
	Bitmap::rectangleFill(x1, y1, x2, y2, doTransBlend(color, globalBlend.alpha));
	}

	void TranslucentBitmap::ellipse( int x, int y, int rx, int ry, Color color ) const {
	TransBlender blender;
	Bitmap::ellipse(x, y, rx, ry, doTransBlend(color, globalBlend.alpha));
	}


	Bitmap & Bitmap::operator=(const Bitmap & copy){
	releaseInternalBitmap();
	path = copy.getPath();
	getData().setBitmap(copy.getData().getBitmap());
	// own = false;
	own = copy.own;
	if (own)
	*own += 1;
	return *this;
	}

	void Bitmap::setClipRect( int x1, int y1, int x2, int y2 ) const {
	/* TODO */
	}

	void Bitmap::getClipRect(int & x1, int & y1, int & x2, int & y2) const {
	/* TODO */
	}

	void Bitmap::destroyPrivateData(){
	if (al_get_target_bitmap() == getData().getBitmap()){
	al_set_target_bitmap(NULL);
	}
	al_destroy_bitmap(getData().getBitmap());
	}

	int setGfxModeFullscreen(int x, int y){
	return setGraphicsMode(FULLSCREEN, x, y);
	}

	int setGfxModeWindowed( int x, int y ){
	return setGraphicsMode(WINDOWED, x, y);
	}

	int setGfxModeText(){
	/* TODO */
	return 0;
	}

	bool Bitmap::getError(){
	/* TODO */
	return false;
	}

	void Bitmap::transBlender(int r, int g, int b, int a){
	globalBlend.red = r;
	globalBlend.green = g;
	globalBlend.blue = b;
	globalBlend.alpha = a;
	globalBlend.type = Translucent;
	}

	void Bitmap::addBlender(int r, int g, int b, int a){
	globalBlend.red = r;
	globalBlend.green = g;
	globalBlend.blue = b;
	globalBlend.alpha = a;
	globalBlend.type = Add;
	}

	void Bitmap::differenceBlender( int r, int g, int b, int a ){
	globalBlend.red = r;
	globalBlend.green = g;
	globalBlend.blue = b;
	globalBlend.alpha = a;
	globalBlend.type = Difference;
	}

	void Bitmap::multiplyBlender( int r, int g, int b, int a ){
	globalBlend.red = r;
	globalBlend.green = g;
	globalBlend.blue = b;
	globalBlend.alpha = a;
	globalBlend.type = Multiply;
	}

	void Bitmap::drawingMode(int type){
	/* TODO */
	}

	void Bitmap::shutdown(){
	delete Screen;
	Screen = NULL;
	// delete allegroLock;
	// allegroLock = NULL;
	/*
	delete Scaler;
	Scaler = NULL;
	delete Buffer;
	Buffer = NULL;
	*/
	}

	StretchedBitmap::StretchedBitmap(int width, int height, const Bitmap & parent):
	Bitmap(parent, 0, 0, parent.getWidth(), parent.getHeight()),
	width(width),
	height(height),
	where(parent){
	}

	void StretchedBitmap::start(){
	ALLEGRO_TRANSFORM transform;
	changeTarget(this, this);
	al_identity_transform(&transform);
	al_scale_transform(&transform, Bitmap::getWidth() / width, Bitmap::getHeight() / height);
	al_use_transform(&transform);
	}

	void StretchedBitmap::finish(){
	ALLEGRO_TRANSFORM transform;
	changeTarget(this, this);
	al_identity_transform(&transform);
	al_use_transform(&transform);
	}

	Bitmap getScreenBuffer(){
	return *Screen;
	}

	void resetDisplay(){
	// al_set_target_bitmap(Screen->getData().getBitmap());
	// changeTarget(Screen);
	}

	RestoreState::RestoreState():
	target(al_get_target_bitmap()){
	}

	RestoreState::~RestoreState(){
	al_set_target_bitmap(target);
	}

	}

	static bool sameColor(Graphics::Color color1, Graphics::Color color2){
	unsigned char r1, g1, b1, a1;
	unsigned char r2, g2, b2, a2;
	al_unmap_rgba(color1, &r1, &g1, &b1, &a1);
	al_unmap_rgba(color2, &r2, &g2, &b2, &a2);
	return r1 == r2 &&
	g1 == g2 &&
	b1 == b2 &&
	a1 == a2;
	}

	static uint32_t quantify(const ALLEGRO_COLOR & color){
	unsigned char red, green, blue, alpha;
	al_unmap_rgba(color, &red, &green, &blue, &alpha);
	return (red << 24) \|
	(green << 16) \|
	(blue << 8) \|
	alpha;
	}

	bool operator<(const ALLEGRO_COLOR color1, const ALLEGRO_COLOR color2){
	return quantify(color1) < quantify(color2);
	}

	bool operator!=(const ALLEGRO_COLOR color1, const ALLEGRO_COLOR color2){
	return !(color1 == color2);
	}

	bool operator==(const ALLEGRO_COLOR color1, const ALLEGRO_COLOR color2){
	return sameColor(color1, color2);
	}

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