X-Git-Url: http://git.cascardo.eti.br/?p=cascardo%2Fmovie.git;a=blobdiff_plain;f=movie.c;h=4ff67dbea27ce6b665e8ab68066236d16e320da8;hp=8bba5ac5566d65423520c744f6c6ccd033bc01ca;hb=9946d0d51bfa0fb3a00aaf4cea0bc9845d7e12f1;hpb=1e56e1dc756f1b11bddb89be5a8ac554fe001b33

diff --git a/movie.c b/movie.c
index 8bba5ac..4ff67db 100644
--- a/movie.c
+++ b/movie.c
@@ -16,27 +16,104 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#define _GNU_SOURCE
+#include <glib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
 
-#include <SDL.h>
-#include <SDL_image.h>
+#include "point.h"
 
-int
-main (int argc, char **argv)
+#define SWAP(x, y) do { \
+	x ^= y; y ^= x; x ^= y; \
+	} while (0)
+
+void
+InsertLine (GArray *points, Point *src, Point *dst)
 {
-  SDL_Surface *image;
-  SDL_Surface *screen;
-  SDL_Event event;
-  SDL_Init (SDL_INIT_VIDEO | SDL_INIT_TIMER);
-  screen = SDL_SetVideoMode (800, 600, 32, SDL_HWSURFACE | SDL_DOUBLEBUF | SDL_FULLSCREEN);
-  image = IMG_Load ("/home/cascardo/fotos/debconf.jpg");
-  SDL_BlitSurface (image, NULL, screen, NULL);
-  SDL_UpdateRect (screen, 0, 0, 0, 0);
-  while (SDL_WaitEvent (&event))
+  Point rect;
+  int inc, err, thre, swap;
+  int x1, y1, x2, y2;
+  int x, y;
+  rect.name = NULL;
+  err = 0;
+  swap = 0;
+  x1 = src->x;
+  y1 = src->y;
+  x2 = dst->x;
+  y2 = dst->y;
+  inc = y2 - y1;
+  thre = x2 - x1;
+  if (ABS (inc) > ABS (thre))
+  {
+    SWAP (inc, thre);
+    SWAP (x1, y1);
+    SWAP (x2, y2);
+    swap = 1;
+  }
+  for (y = y1, x = x1; (x2 < x1) ? (x >= x2) : (x <= x2); (x2 < x1) ? x-- : x++)
   {
-    if (event.type == SDL_KEYDOWN)
-      break;
+    rect.x = (swap ? y : x);
+    rect.y = (swap ? x : y);
+    g_array_append_val (points, rect);
+    err += ABS (inc);
+    if (err >= ABS (thre))
+    {
+      err -= ABS (thre);
+      y += (inc < 0) ? -1 : 1;
+    }
   }
-  SDL_FreeSurface (image);
-  SDL_Quit ();
-  return 0;
+}
+
+GArray *
+ReadPoints (char *filename)
+{
+  GArray *points;
+  FILE *file;
+  char *buffer;
+  char *next;
+  size_t len;
+  ssize_t r;
+  int i = 0;
+  Point last;
+  Point rect;
+  file = fopen (filename, "r");
+  points = g_array_new (FALSE, TRUE, sizeof (Point));
+  buffer = NULL;
+  len = 0;
+  rect.x = rect.y = 0;
+  rect.name = NULL;
+  last = rect;
+  while (!feof (file))
+  {
+    r = getline (&buffer, &len, file);
+    buffer[r - 1] = '\0';
+    rect.x = strtol (buffer, &next, 0);
+    rect.y = strtol (next+1, &next, 0);
+    strtol (next, &next, 0);
+    while (isspace (*next)) next++;
+    rect.name = g_strdup (next);
+    if (i > 0)
+      InsertLine (points, &last, &rect);
+    g_array_append_val (points, rect);
+    last = rect;
+    i++;
+  }
+  fclose (file);
+  return points;
+}
+
+void
+rescale_points (GArray *points)
+{
+  Point *point;
+  int i;
+  for (i = 0; i < points->len; i++)
+    {
+      point = &(g_array_index (points, Point, i));
+      point->rx = 4.0;
+      point->ry = 4.0;
+      point->x *= point->rx;
+      point->y *= point->ry;
+    }
 }