#define PULLUP_CPU_MMX 1
#define PULLUP_CPU_MMX2 2
#define PULLUP_CPU_3DNOW 4
#define PULLUP_CPU_3DNOWEXT 8
#define PULLUP_CPU_SSE 16
#define PULLUP_CPU_SSE2 32

#define PULLUP_FMT_Y 1
#define PULLUP_FMT_YUY2 2
#define PULLUP_FMT_UYVY 3
#define PULLUP_FMT_RGB32 4

struct pullup_buffer
{
	int lock[2];
	unsigned char **planes;
};

struct pullup_field
{
	int parity;
	struct pullup_buffer *buffer;
	unsigned int flags;
	int breaks;
	int affinity;
	int *diffs;
	int *comb;
	struct pullup_field *prev, *next;
};

struct pullup_frame
{
	int lock;
	int length;
	int parity;
	struct pullup_buffer **ifields, *ofields[2];
	struct pullup_buffer *buffer;
};

struct pullup_context
{
	/* Public interface */
	int format;
	int nplanes;
	int *bpp, *w, *h, *stride, *background;
	unsigned int cpu;
	int junk_left, junk_right, junk_top, junk_bottom;
	int verbose;
	int metric_plane;
	int strict_breaks;
	int strict_pairs;
	/* Internal data */
	struct pullup_field *first, *last, *head;
	struct pullup_buffer *buffers;
	int nbuffers;
	int (*diff)(unsigned char *, unsigned char *, int);
	int (*comb)(unsigned char *, unsigned char *, int);
	int metric_w, metric_h, metric_len, metric_offset;
	struct pullup_frame *frame;
};


struct pullup_buffer *pullup_lock_buffer(struct pullup_buffer *b, int parity);
void pullup_release_buffer(struct pullup_buffer *b, int parity);
struct pullup_buffer *pullup_get_buffer(struct pullup_context *c, int parity);

void pullup_submit_field(struct pullup_context *c, struct pullup_buffer *b, int parity);
void pullup_flush_fields(struct pullup_context *c);

struct pullup_frame *pullup_get_frame(struct pullup_context *c);
void pullup_pack_frame(struct pullup_context *c, struct pullup_frame *fr);
void pullup_release_frame(struct pullup_frame *fr);

struct pullup_context *pullup_alloc_context();
void pullup_preinit_context(struct pullup_context *c);
void pullup_init_context(struct pullup_context *c);
void pullup_free_context(struct pullup_context *c);