git.maemo.org Git - shermanaquarium/blob - sherman-aquarium/shermans/images.c

   1
   2 #include <stdio.h>
   3 #include <gtk/gtk.h>
   4 #include <gdk-pixbuf/gdk-pixbuf.h>
   5 #include "aquarium.h"
   6
   7 extern int fullscreen, window_id;
   8
   9 /* Declare it here to avoid warnings */
  10 GdkPixbuf *gai_load_image(const char *);
  11
  12 void load_image(char *fname, SA_Image *image, int frames)
  13 {
  14
  15     image->pixbuf = gai_load_image(fname);
  16     image->frames = frames;
  17     image->rev = NULL;
  18     image->width = gdk_pixbuf_get_width(image->pixbuf);
  19     image->full_height = gdk_pixbuf_get_height(image->pixbuf);
  20
  21     image->rowstride = gdk_pixbuf_get_rowstride(image->pixbuf);
  22     image->height = (int)((float)image->full_height / (float)frames+0.5);
  23     image->image = gdk_pixbuf_get_pixels(image->pixbuf);
  24 }
  25
  26
  27
  28 void load_image_n_scale(char *fname, SA_Image *image,
  29                         int frames, int scale)
  30 {
  31
  32     int w, h, newh, neww,i;
  33     GdkPixbuf *tmpbuff, *workbuff1, *workbuff2;
  34
  35     if(scale==100){
  36         load_image(fname,image,frames);
  37         return;
  38     }
  39
  40
  41     tmpbuff = gai_load_image(fname);
  42     image->frames = frames;
  43     image->rev = NULL;
  44
  45     w = gdk_pixbuf_get_width(tmpbuff);
  46     h = gdk_pixbuf_get_height(tmpbuff);
  47
  48     image->width = neww =(int)((((float)w * (float)scale) / 100.0)+0.5);
  49     image->height = newh = (int)((((float)h / (float)frames) * (float)scale) / 100.0 + 0.5);
  50     image->full_height = newh * frames;
  51
  52     image->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE,8,
  53                                    neww,
  54                                    frames*newh);
  55
  56     for(i=0;i<frames;i++){
  57         workbuff1 = gdk_pixbuf_new_subpixbuf(tmpbuff,0,i*h/frames,w,h/frames);
  58         workbuff2 = gdk_pixbuf_scale_simple(workbuff1, neww, newh, GDK_INTERP_BILINEAR);
  59         g_object_unref(workbuff1);
  60         gdk_pixbuf_copy_area(workbuff2,0,0,neww,newh,image->pixbuf,0,newh*i);
  61         g_object_unref(workbuff2);
  62
  63     }
  64
  65
  66
  67
  68     image->image = gdk_pixbuf_get_pixels(image->pixbuf);
  69     image->rowstride = gdk_pixbuf_get_rowstride(image->pixbuf);
  70
  71     g_object_unref(tmpbuff);
  72
  73 }