rnd-20060430-1-src

[rocksndiamonds.git] / src / libgame / image.c

diff --git a/src/libgame/image.c b/src/libgame/image.c
index 72e9580cc0ce1f09136302a1e157c126f99ac2b2..cb8de4c87ed46ab8397a46f8f6a852843cb3344b 100644 (file)
--- a/src/libgame/image.c
+++ b/src/libgame/image.c
@@ -31,13 +31,6 @@ Image *newImage(unsigned int width, unsigned int height, unsigned int depth)
   unsigned int bytes_per_pixel = (depth + 7) / 8;
   int i;
 
-#if 0
-  if (depth > 8)
-    Error(ERR_EXIT, "images with more than 256 colors are not supported");
-
-  depth = 8;
-#endif
-
   image = checked_calloc(sizeof(Image));
   image->data = checked_calloc(width * height * bytes_per_pixel);
   image->width = width;
@@ -718,7 +711,7 @@ void ZoomPixmap(Display *display, GC gc, Pixmap src_pixmap, Pixmap dst_pixmap,
            for (i = 0; i < bytes_per_pixel; i++)
              *dst_ptr++ = *(src_ptr + i);
 
-         src_ptr += i;
+         src_ptr += bytes_per_pixel;
        }
       }
     }
@@ -820,7 +813,12 @@ struct ImageInfo
   int num_references;
 
   Bitmap *bitmap;
-  boolean contains_small_images;
+
+  int original_width;                  /* original image file width */
+  int original_height;                 /* original image file height */
+
+  boolean contains_small_images;       /* set after adding small images */
+  boolean scaled_up;                   /* set after scaling up */
 };
 typedef struct ImageInfo ImageInfo;
 
@@ -831,7 +829,7 @@ static void *Load_PCX(char *filename)
   ImageInfo *img_info;
 
 #if 0
-  printf("loading PCX file '%s'\n", filename);
+  printf("::: loading PCX file '%s'\n", filename);
 #endif
 
   img_info = checked_calloc(sizeof(ImageInfo));
@@ -846,7 +844,11 @@ static void *Load_PCX(char *filename)
 
   img_info->source_filename = getStringCopy(filename);
 
+  img_info->original_width  = img_info->bitmap->width;
+  img_info->original_height = img_info->bitmap->height;
+
   img_info->contains_small_images = FALSE;
+  img_info->scaled_up = FALSE;
 
   return img_info;
 }
@@ -873,7 +875,7 @@ int getImageListSize()
          image_info->num_dynamic_file_list_entries);
 }
 
-struct FileInfo *getImageListEntry(int pos)
+struct FileInfo *getImageListEntryFromImageID(int pos)
 {
   int num_list_entries = image_info->num_file_list_entries;
   int list_pos = (pos < num_list_entries ? pos : pos - num_list_entries);
@@ -895,33 +897,30 @@ static ImageInfo *getImageInfoEntryFromImageID(int pos)
 
 Bitmap *getBitmapFromImageID(int pos)
 {
-#if 0
-  int num_list_entries = image_info->num_file_list_entries;
-  int list_pos = (pos < num_list_entries ? pos : pos - num_list_entries);
-  ImageInfo **img_info =
-    (ImageInfo **)(pos < num_list_entries ? image_info->artwork_list :
-                  image_info->dynamic_artwork_list);
-
-  return (img_info[list_pos] != NULL ? img_info[list_pos]->bitmap : NULL);
-#else
   ImageInfo *img_info = getImageInfoEntryFromImageID(pos);
 
   return (img_info != NULL ? img_info->bitmap : NULL);
-#endif
 }
 
-char *getTokenFromImageID(int graphic)
+int getOriginalImageWidthFromImageID(int pos)
 {
-#if 0
-  /* !!! this does not work for dynamic artwork (crash!) !!! */
-  struct FileInfo *file_list = (struct FileInfo *)image_info->file_list;
+  ImageInfo *img_info = getImageInfoEntryFromImageID(pos);
+
+  return (img_info != NULL ? img_info->original_width : 0);
+}
+
+int getOriginalImageHeightFromImageID(int pos)
+{
+  ImageInfo *img_info = getImageInfoEntryFromImageID(pos);
+
+  return (img_info != NULL ? img_info->original_height : 0);
+}
 
-  return file_list[graphic].token;
-#else
-  struct FileInfo *file_list = getImageListEntry(graphic);
+char *getTokenFromImageID(int graphic)
+{
+  struct FileInfo *file_list = getImageListEntryFromImageID(graphic);
 
   return (file_list != NULL ? file_list->token : NULL);
-#endif
 }
 
 int getImageIDFromToken(char *token)
@@ -931,7 +930,7 @@ int getImageIDFromToken(char *token)
   int i;
 
   for (i = 0; i < num_list_entries; i++)
-    if (strcmp(file_list[i].token, token) == 0)
+    if (strEqual(file_list[i].token, token))
       return i;
 
   return -1;
@@ -1030,7 +1029,7 @@ void InitImageList(struct ConfigInfo *config_list, int num_file_list_entries,
 void ReloadCustomImages()
 {
 #if 0
-  printf("DEBUG: reloading images '%s' ...\n", artwork.gfx_current_identifier);
+  printf("::: reloading images '%s' ...\n", artwork.gfx_current_identifier);
 #endif
 
   LoadArtworkConfig(image_info);
@@ -1047,16 +1046,20 @@ void CreateImageWithSmallImages(int pos, int zoom_factor)
   CreateBitmapWithSmallBitmaps(img_info->bitmap, zoom_factor);
 
   img_info->contains_small_images = TRUE;
+  img_info->scaled_up = TRUE;
+}
 
-#if 0
-  if (zoom_factor)
-    printf("CreateImageWithSmallImages: '%s' zoomed by factor %d\n",
-          img_info->source_filename, zoom_factor);
-#endif
+void ScaleImage(int pos, int zoom_factor)
+{
+  ImageInfo *img_info = getImageInfoEntryFromImageID(pos);
 
-#if 0
-  printf("CreateImageWithSmallImages: '%s' done\n", img_info->source_filename);
-#endif
+  if (img_info == NULL || img_info->scaled_up)
+    return;
+
+  if (zoom_factor != 1)
+    ScaleBitmap(img_info->bitmap, zoom_factor);
+
+  img_info->scaled_up = TRUE;
 }
 
 void FreeAllImages()