From 19ca69692093a43e2d21e71b1f2dfd7615ebc829 Mon Sep 17 00:00:00 2001
From: erdgeist <>
Date: Tue, 15 Jul 2003 09:51:40 +0000
Subject: movie handling

---
 Movie.c | 81 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-----------
 Movie.h | 14 ++++++++++--
 X11.c   |  3 +--
 3 files changed, 81 insertions(+), 17 deletions(-)

diff --git a/Movie.c b/Movie.c
index b9e9bab..44a15e9 100755
--- a/Movie.c
+++ b/Movie.c
@@ -1,10 +1,15 @@
 #include <time.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "Movie.h"
+
+#ifndef NULL
+  #define NULL ((void*)0)
+#endif
 
 struct Frame;
-struct Movie;
 
 typedef struct Frame Frame;
-typedef struct Movie Movie;
 
 struct Frame {
     unsigned long *framedata;
@@ -13,23 +18,25 @@ struct Frame {
 
 struct Movie {
     Frame *Movie;
+    Frame *current;
     Movie *next;
     int    rate;
     time_t starttime;
 };
 
-static Movie *movie_list;
+static Movie movie_list = { NULL, NULL, NULL, 0, 0};
 static Movie *current;
+static int   MoviePoints;
 
 void Movie_init( int points ) {
-    movie_list = (Movie*)0;
-    current    = (Movie*)0;
+    MoviePoints = points;
+    current    = NULL;
 }
 
 void Movie_destroy( void ) {
-    Movie *tmp = movie_list;
+    Movie *tmp = movie_list.next;
 
-    current = (Movie*)0;
+    current = NULL;
     while( tmp ) {
         Movie *next = tmp->next;
         Movie_unloadmovie( tmp );
@@ -38,20 +45,68 @@ void Movie_destroy( void ) {
 }
 
 Movie *Movie_loadmovie( char *filename ) {
+    FILE  *infile = fopen( filename, "r" );
+    Movie *movie  = NULL;
+    Frame **loaded = NULL;
+    int    points, frames, i;
+
+    if( infile == NULL ) return NULL;
+
+    if( ( fscanf( infile, "%d\n", &points ) != 1 )        ||
+        ( MoviePoints != points )                         ||
+        ( fscanf( infile, "%d\n", &frames ) != 1 )        ||
+        ( ( movie = malloc( sizeof( Movie ) ) ) == NULL ) ||
+        ( fscanf( infile, "%d\n", &movie->rate ) != 1 )   )
+        goto error;
+
+    loaded = &movie->Movie;
+
+    while( frames-- > 0 ) {
+        if(
+            ( (  *loaded             = malloc( sizeof( Frame ) ) ) == NULL ) ||
+            ( ( (*loaded)->framedata = malloc( points * points * points * sizeof( unsigned long ) ) ) == NULL )
+          )
+            goto error;
+
+        for( i = 0; i < points * points * points; ++i ) {
+            if( fscanf( infile, "%d%d%d", ((char *)((*loaded)->framedata)),
+                                          ((char *)((*loaded)->framedata))+1,
+                                          ((char *)((*loaded)->framedata))+2 )
+                       != 3 )
+                goto error;
+        }
+        loaded = &((*loaded)->next);
+    }
 
+    error:
+    if( loaded )
+        (*loaded)->next = NULL;
+    if( movie )
+        Movie_unloadmovie( movie );
+    movie = NULL;
+    success:
+    fclose( infile );
+    return movie;
 }
 
 void Movie_unloadmovie( Movie *movie ) {
-    Movie *tmp = movie_list;
+    Movie *tmp = &movie_list;
     if( current == movie )
-        current = (Movie*)0;
+        current = NULL;
 
-    while( tmp && ( tmp != movie ))
+    while( tmp && ( tmp->next != movie ))
         tmp = tmp->next;
 
-    if( tmp) {
-        
-        free( tmp );
+    if( tmp->next) {
+        Frame *frame = tmp->next->Movie;
+        while( frame != NULL ) {
+            Frame *next = frame->next;
+            free( frame );
+            frame = next;
+        }
+
+        tmp->next = tmp->next->next;
+        free( tmp->next );
     }
 }
 
diff --git a/Movie.h b/Movie.h
index 3b2feba..576f618 100755
--- a/Movie.h
+++ b/Movie.h
@@ -1,7 +1,8 @@
 /* Opaque reference to Movie in
    Movie library
 */
-typedef void* Movie;
+struct Movie;
+typedef struct Movie Movie;
 
 /* Initialise Movie handler
    - points is number of balls
@@ -15,7 +16,16 @@ void Movie_destroy( void );
 /* Load one movie from File
    - filename pointer to file containing
      Movie
-   - returns handle to the Movie
+   - returns handle to the Movie or NULL
+     on error
+
+File format is:
+  %d\n number of points for Cube
+  %d\n number of frames
+  %d\n frame rate
+  foreach frame
+    foreach point * point * point
+       %d%d%d RGB of pixel
 */
 Movie *Movie_loadmovie( char *filename );
 
diff --git a/X11.c b/X11.c
index de552fe..887eef9 100755
--- a/X11.c
+++ b/X11.c
@@ -96,7 +96,7 @@ int main(int argc, char **argv) {
     signal( SIGINT, handle_signal );
     signal( SIGALRM, handle_signal );
 
-    Vector_init( 8, 300);
+    Vector_init( 5, 300);
 
 #ifdef ENABLE_X11_SHARED_MEMORY_PIXMAPS
     shminfo = malloc( sizeof( shminfo ));
@@ -244,7 +244,6 @@ int main(int argc, char **argv) {
             }
 
             default:
-                printf( "Uncatched event!" );
                 break;
             }
             if( shallredraw == 1 ) {
-- 
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