rnd-19980904-1

[rocksndiamonds.git] / src / gifload.c

diff --git a/src/gifload.c b/src/gifload.c
new file mode 100644 (file)
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+++ b/src/gifload.c
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+/***********************************************************
+*  Rocks'n'Diamonds -- McDuffin Strikes Back!              *
+*----------------------------------------------------------*
+*  ©1995 Artsoft Development                               *
+*        Holger Schemel                                    *
+*        33659 Bielefeld-Senne                             *
+*        Telefon: (0521) 493245                            *
+*        eMail: aeglos@valinor.owl.de                      *
+*               aeglos@uni-paderborn.de                    *
+*               q99492@pbhrzx.uni-paderborn.de             *
+*----------------------------------------------------------*
+*  gifload.c                                               *
+***********************************************************/
+
+#ifndef MSDOS
+#include "gifload.h"
+
+#include "xli.h"
+
+
+
+extern Pixmap          test_pix[];
+extern Pixmap          test_clipmask[];
+extern int             test_picture_count;
+
+
+
+
+int Read_GIF_to_Image(Display *display, Window window, char *filename)
+{
+  Image *image, *image_mask;
+  XImageInfo *ximageinfo, *ximageinfo_mask;
+  Pixmap pixmap, pixmap_mask;
+  int screen;
+  Visual *visual;
+  unsigned int depth;
+
+  /* load GIF file */
+  if (!(image = gifLoad(filename)))
+  {
+    printf("Loading GIF image failed -- maybe no GIF...\n");
+    exit(1);
+  }
+
+  if (image->depth > 8)
+  {
+    printf("Sorry, GIFs with more than 256 colors are not supported.\n");
+    exit(1);
+  }
+
+  /* minimize colormap */
+  compress(image);
+
+  screen = DefaultScreen(display);
+  visual = DefaultVisual(display, screen);
+  depth = DefaultDepth(display, screen);
+
+  /* convert internal image structure to X11 XImage */
+  if (!(ximageinfo = imageToXImage(display, screen, visual, depth, image)))
+  {
+    fprintf(stderr, "Cannot convert Image to XImage.\n");
+    exit(1);
+  }
+
+  if (ximageinfo->cmap != DefaultColormap(display, screen))
+  {
+    printf("--> '%s' gets own colormap\n", filename);
+
+    XSetWindowColormap(display, window, ximageinfo->cmap);
+  }
+
+  /* convert XImage to Pixmap */
+  if ((pixmap = ximageToPixmap(display, window, ximageinfo)) == None)
+  {
+    fprintf(stderr, "Cannot convert XImage to Pixmap.\n");
+    exit(1);
+  }
+
+
+  printf("test_picture_count == %d\n", test_picture_count);
+
+
+  test_pix[test_picture_count] = pixmap;
+
+
+  /* create mono image for masking */
+  image_mask = monochrome(image);
+
+  /* convert internal image structure to X11 XImage */
+  if (!(ximageinfo_mask = imageToXImage(display, screen, visual, depth,
+                                       image_mask)))
+  {
+    fprintf(stderr, "Cannot convert Image to XImage.\n");
+    exit(1);
+  }
+
+  /* convert XImage to Pixmap */
+  if ((pixmap_mask = ximageToPixmap(display, window, ximageinfo_mask)) == None)
+  {
+    fprintf(stderr, "Cannot convert XImage to Pixmap.\n");
+    exit(1);
+  }
+
+
+  test_clipmask[test_picture_count] = pixmap_mask;
+
+  test_picture_count++;
+
+
+  return(GIF_Success);
+}
+
+#endif