thanm: minor cleanup after merge

NEWS

@@ -10,12 +10,12 @@ What's new in thtk master
 - New thanm spec format. See <https://github.com/thpatch/thtk/pull/86> for more
   details. The old format is not supported anymore. Use thanm.old for it.
 - Game version now must be specified, just as with other tools.
-- Support for TH18, TH185, TH19 has been added.
+- Support for TH18, TH185, TH19 (full) has been added.
 - Support th143/bestshot.anm
 
 #### thanm.old
 - Will be removed in the next release.
-- Support for TH18, TH185, TH19 has been added.
+- Support for TH18, TH185, TH19 (trial) has been added.
   TH19 creation won't work, though. Use the new thanm instead.
 - You can now specify the version for the -l command.
   This is required for correct dumping of TH18, TH185.
@@ -46,7 +46,7 @@ What's new in thtk master
 - Add -j option for converting strings between Shift-JIS and UTF-8.
 
 #### thdat
-- Automatic version detection now supports th165, th17, th18 and th185.
+- Automatic version detection now supports th165, th17, th18, th185, th19.
 - Detection works better with renamed files.
 - Support for TH18, TH185, TH19 has been added.
 - Improve extraction speed.

thanm/thanm.c

@@ -1069,8 +1069,8 @@ anm_read_file(
         assert(header->rt_textureslot == 0);
         assert(header->zero3 == 0);
 
-        //if(header->version == 8)
-        //    assert(header->lowresscale == 0 || header->lowresscale == 1);
+        if(header->version == 8)
+            assert((header->lowresscale&0xFE) == 0); /* Low byte can only be 0 or 1. High byte is used by TH19 */
 
         /* Lengths, including padding, observed are: 16, 32, 48. */
         entry->name = anm_get_name(archive, (const char*)map + header->nameoffset);
@@ -1175,7 +1175,8 @@ anm_read_file(
                 (thtx_header_t*)(map + header->thtxoffset);
             assert(util_strcmp_ref(thtx->magic, stringref("THTX")) == 0);
             assert(thtx->zero == 0);
-            //assert(thtx->w * thtx->h * format_Bpp(thtx->format) <= thtx->size);
+            /* NEWHU: 19 */
+            assert(version == 19 || thtx->w * thtx->h * format_Bpp(thtx->format) <= thtx->size);
             assert(
                 thtx->format == FORMAT_BGRA8888 ||
                 thtx->format == FORMAT_RGB565 ||
@@ -1478,7 +1479,7 @@ anm_extract(
         /* Then there's nothing to extract. */
         return;
     }
-       
+
     anm_entry_t* entry;
     list_for_each(&anm->entries, entry) {
         if (entry->header->hasdata && entry->name == name) {
@@ -1508,8 +1509,8 @@ anm_extract(
                 }
             }
         }
-    }   
-    
+    }
+
     png_write(name, &image);
     free(image.data);
 }
@@ -1815,7 +1816,7 @@ anm_defaults(
                 free(img_buf);
                 fprintf(stderr, "%s: not a PNG or JFIF file. Image files must be encoded in PNG or JFIF for Touhou 19\n", entry->name);
                 exit(1);
-            }          
+            }
 
             entry->data = img_buf;
             continue;
@@ -2111,7 +2112,7 @@ main(
     int command = -1;
 
     FILE* in;
-    
+
     anm_archive_t* anm;
 #ifdef HAVE_LIBPNG
     anm_entry_t* entry;
@@ -2336,7 +2337,7 @@ main(
         current_input = argv[1];
         anm = anm_create(argv[1], symbolfp, version);
 
-       
+
 
         if (symbolfp)
             fclose(symbolfp);