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/*

 * Copyright 1995, Brown University, Providence, RI

 *

 * Permission to use and modify this software and its documentation for

 * any purpose other than its incorporation into a commercial product is

 * hereby granted without fee.  Permission to copy and distribute this

 * software and its documentation only for non-commercial use is also

 * granted without fee, provided, however, that the above copyright notice

 * appear in all copies, that both that copyright notice and this permission

 * notice appear in supporting documentation, that the name of Brown

 * University not be used in advertising or publicity pertaining to

 * distribution of the software without specific, written prior permission,

 * and that the person doing the distribution notify Brown University of

 * such distributions outside of his or her organization. Brown University

 * makes no representations about the suitability of this software for

 * any purpose.  It is provided "as is" without express or implied warranty.

 * Brown University requests notification of any modifications to this

 * software or its documentation.

 *

 * Send the following redistribution information:

 *

 *      Name:

 *      Organization:

 *      Address (postal and/or electronic):

 *

 * To:

 *      Software Librarian

 *      Computer Science Department, Box 1910

 *      Brown University

 *      Providence, RI 02912

 *

 *              or

 *

 *      brusd@cs.brown.edu

 *

 * We will acknowledge all electronic notifications.

 */

#include <stdio.h>

#include <iostream.h>

#include "ANIMdisplay.H"

// Constructor for first movie in a series

//

//

ANIMdisplay::ANIMdisplay(ANIMbase *movie, char* displayName,

                         Boolean loopMovie,

                         int allocateFrame, int starty)

        : _movie(movie),

          originalMovie(TRUE),

          frameAllocated(FALSE),

          loop(loopMovie),

          movieEnded(FALSE),

          _displayName(strdup(displayName))

{

//for first instance

           xinfo.hints.x=0;

           xinfo.hints.y=starty;

           xinfo.cmap=0;

           xinfo.gc=0;

           xinfo.depth=24;

           xinfo.ditherType=FULL_COLOR_DITHER;

           xinfo.display=NULL;

           xinfo.visual=NULL;

           xinfo.ExistingWindow=0;

         xinfo.hints.width=movie->Width;

         xinfo.hints.height=movie->Height;

         largy=-1;

         init(allocateFrame);

         XWindowAttributes winattr;

         Display *display=xinfo.display;

         displayWidth=DisplayWidth(display,XDefaultScreen(display));

         XGetWindowAttributes(display, xinfo.window, &winattr);

         _movie->InitDither(winattr.visual->red_mask,

                             winattr.visual->green_mask,

                             winattr.visual->blue_mask);

}

// Constructor for first movie in a series

//

//

ANIMdisplay::ANIMdisplay(ANIMbase *movie, ANIMdisplay *lastMovie,

                         Boolean loopMovie,

                         int allocateFrame)

   : largy(lastMovie->largy),

     frameAllocated(FALSE),

     displayWidth(lastMovie->displayWidth),

     _displayName(lastMovie->_displayName),

     _movie(movie),

     originalMovie(TRUE),

     loop(loopMovie),

     movieEnded(FALSE)

{

//for n>1 instance

         /* get next X coordinates */

         xinfo.hints.x= lastMovie->xinfo.hints.x+10+ lastMovie->_movie->Width;

         /* Update the largest vertical size of a movie */

         /* If we are off the right side of the screen, cont at left */

         xinfo.hints.y=lastMovie->xinfo.hints.y;

         if (xinfo.hints.x > displayWidth - 80) {

                  xinfo.hints.y+=largy+30;

                  largy=0;

                  xinfo.hints.x=0;

         }

         xinfo.ExistingWindow=0;

         xinfo.display=lastMovie->xinfo.display;

         xinfo.visual=lastMovie->xinfo.visual;

         xinfo.cmap=lastMovie->xinfo.cmap;

         xinfo.gc=lastMovie->xinfo.gc;

         xinfo.ditherType=lastMovie->xinfo.ditherType;

         xinfo.display=lastMovie->xinfo.display;

         xinfo.depth=lastMovie->xinfo.depth;

         xinfo.ditherType=lastMovie->xinfo.ditherType;

         init(allocateFrame);

}

// Destructor

//

//

ANIMdisplay::~ANIMdisplay()

{

        if (frameAllocated) {

           free(xinfo.ximage->data);

           xinfo.ximage->data=NULL;

        }

        if (xinfo.ximage!=NULL) XDestroyImage(xinfo.ximage);

        // Add code re: xinfo.display - reference count

}

// Constructor helper code, also called when we switch movies

//

//

void

ANIMdisplay::init(Boolean allocateFrame)

{

         const char *inputName=_movie->getName();

         if (_movie->Height>largy) {

                 largy=_movie->Height;

         }

         xinfo.hints.width=_movie->Width;

         xinfo.hints.height=_movie->Height;

         xinfo.ximage=NULL;

         xinfo.owncmFlag=FALSE;

         if (inputName==NULL) {

            // Should be....  different

            xinfo.name="Display!";

         } else if ((xinfo.name=strrchr(inputName,'/'))==NULL) {

            xinfo.name=(char *) inputName;

         } else xinfo.name++;

         if (originalMovie) InitColorDisplay((char *) _displayName,&xinfo);

         else {

            XSetStandardProperties (xinfo.display, xinfo.window, xinfo.name,

                                    xinfo.name, None, NULL, 0,

                                    &xinfo.hints);

         }

         init_image(allocateFrame);

}

void

ANIMdisplay::init_image(Boolean allocateFrame) {

        Display *display=xinfo.display;

        Visual *fc_visual;

        int depth, w,h;

        char *where,dummy;

        //XImage has to be on word boundary?

        w = _movie->Width + (_movie->Width % 16);

        h = _movie->Height + (_movie->Height % 16);

        if (w+h==0) {

           xinfo.ximage=NULL;

           return;

        }

        frameAllocated=allocateFrame;

        fc_visual = FindFullColorVisual(display, &depth);

        if (allocateFrame) where=(char *) malloc(w*h*4);

        else where=&dummy;

        xinfo.ximage=XCreateImage(display,fc_visual,depth,ZPixmap,

            0,where,w, h,32,0);

#ifdef LITTLE_ENDIAN_ARCHITECTURE

        xinfo.ximage->byte_order = LSBFirst;

        xinfo.ximage->bitmap_bit_order = LSBFirst;

#else

        xinfo.ximage->byte_order = MSBFirst;

        xinfo.ximage->bitmap_bit_order = MSBFirst;

#endif

}

void

ANIMdisplay::newMovie(const char *const newMovieName)

{

        if (xinfo.ximage!=NULL) XDestroyImage(xinfo.ximage);

        if (newMovieName!=NULL) {

           _movie->newMovie(newMovieName);

           _movie->open();

        }

        originalMovie=FALSE;

        init(frameAllocated);

        XResizeWindow(xinfo.display,xinfo.window,

                      _movie->Width,

                      _movie->Height);

        XFlush(xinfo.display);

        movieEnded=FALSE;

}

void

ANIMdisplay::display(char *frame) {

        char *paramFrame, *tmpFrame;

        Boolean moreFrames, newFrame;

        // if frame is:

        //      !NULL - display frame already in xinfo

        //       NULL - get frame and then display it

        if (frame==NULL) {

           if (xinfo.ximage!=NULL) paramFrame=xinfo.ximage->data;

           else paramFrame=NULL;

           moreFrames=_movie->GetFrame(&paramFrame,&newFrame);

           if (newFrame) {

              // if there is no ximage so far, we are starting "anew"

              if (xinfo.ximage==NULL) {

                 frameAllocated=TRUE;  // Don't allocate a frame

                 newMovie(NULL);

              }

              tmpFrame=xinfo.ximage->data;

              xinfo.ximage->data=paramFrame;

           }

        } else newFrame=TRUE;

        if (newFrame) {

           Display *display=xinfo.display;

           if (frame!=NULL) xinfo.ximage->data=frame;

           XPutImage(display, xinfo.window, xinfo.gc, xinfo.ximage,

                  0,0,0,0,

                  (unsigned int) xinfo.ximage->width,

                  (unsigned int) xinfo.ximage->height);

        }

        if (frame==NULL) {

           // Don't copy NULL over new frame if unneeded

           if (newFrame) xinfo.ximage->data=tmpFrame;

           if (!moreFrames ) {

              if (loop) _movie->rewind();

              else movieEnded=TRUE;

           }

        }

}

Boolean ANIMdisplay::movieDone()

{

        return movieEnded;

}