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#ifndef MUPDF_FITZ_TRANSITION_H
#define MUPDF_FITZ_TRANSITION_H
#include "mupdf/fitz/system.h"
#include "mupdf/fitz/pixmap.h"
/* Transition support */
typedef struct fz_transition_s fz_transition;
enum {
FZ_TRANSITION_NONE = 0, /* aka 'R' or 'REPLACE' */
FZ_TRANSITION_SPLIT,
FZ_TRANSITION_BLINDS,
FZ_TRANSITION_BOX,
FZ_TRANSITION_WIPE,
FZ_TRANSITION_DISSOLVE,
FZ_TRANSITION_GLITTER,
FZ_TRANSITION_FLY,
FZ_TRANSITION_PUSH,
FZ_TRANSITION_COVER,
FZ_TRANSITION_UNCOVER,
FZ_TRANSITION_FADE
};
struct fz_transition_s
{
int type;
float duration; /* Effect duration (seconds) */
/* Parameters controlling the effect */
int vertical; /* 0 or 1 */
int outwards; /* 0 or 1 */
int direction; /* Degrees */
/* Potentially more to come */
/* State variables for use of the transition code */
int state0;
int state1;
};
/*
fz_generate_transition: Generate a frame of a transition.
tpix: Target pixmap
opix: Old pixmap
npix: New pixmap
time: Position within the transition (0 to 256)
trans: Transition details
Returns 1 if successfully generated a frame.
*/
int fz_generate_transition(fz_context *ctx, fz_pixmap *tpix, fz_pixmap *opix, fz_pixmap *npix, int time, fz_transition *trans);
#endif
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