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#ifndef DYNAMIC_gif_STACK_H
#define DYNAMIC_gif_STACK_H
#include <node.h>
#include <node_buffer.h>
#include <utility>
#include <vector>
#include <cstdlib>
#include "common.h"
struct GifUpdate {
int len, x, y, w, h;
unsigned char *data;
GifUpdate(unsigned char *ddata, int llen, int xx, int yy, int ww, int hh) :
len(llen), x(xx), y(yy), w(ww), h(hh)
data = (unsigned char *)malloc(sizeof(*data)*len);
if (!data) throw "malloc failed in DynamicGifStack::GifUpdate";
memcpy(data, ddata, len);
~GifUpdate() {
class DynamicGifStack : public node::ObjectWrap {
typedef std::vector<GifUpdate *> GifUpdates;
GifUpdates gif_stack;
Point offset;
int width, height;
buffer_type buf_type;
Color transparency_color;
std::pair<Point, Point> optimal_dimension();
static void EIO_GifEncode(eio_req *req);
static int EIO_GifEncodeAfter(eio_req *req);
void construct_gif_data(unsigned char *data, Point &top);
static void Initialize(v8::Handle<v8::Object> target);
DynamicGifStack(buffer_type bbuf_type);
v8::Handle<v8::Value> Push(unsigned char *buf_data, size_t buf_len, int x, int y, int w, int h);
v8::Handle<v8::Value> Dimensions();
v8::Handle<v8::Value> GifEncodeSync();
static v8::Handle<v8::Value> New(const v8::Arguments &args);
static v8::Handle<v8::Value> Push(const v8::Arguments &args);
static v8::Handle<v8::Value> Dimensions(const v8::Arguments &args);
static v8::Handle<v8::Value> GifEncodeSync(const v8::Arguments &args);
static v8::Handle<v8::Value> GifEncodeAsync(const v8::Arguments &args);
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