int ILBM_checkBitMapHeader(const IFF_Chunk *chunk)
{
const ILBM_BitMapHeader *bitMapHeader = (const ILBM_BitMapHeader*)chunk;
if(bitMapHeader->nPlanes > 8 && bitMapHeader->nPlanes != 24 && bitMapHeader->nPlanes != 32)
{
IFF_error("Unsupported 'BMHD'.nPlanes value: %s\n", bitMapHeader->nPlanes);
return FALSE;
}
if(bitMapHeader->masking < 0 || bitMapHeader->masking > ILBM_MSK_LASSO)
{
IFF_error("Invalid 'BMHD'.masking value!\n");
return FALSE;
}
if(bitMapHeader->compression < 0 || bitMapHeader->compression > ILBM_CMP_BYTE_RUN)
{
IFF_error("Invalid 'BMHD'.compression value!\n");
return FALSE;
}
if(bitMapHeader->pad1 != 0)
IFF_error("WARNING: 'BMHD'.pad1 is not 0!\n");
return TRUE;
}
int ILBM_checkImage(const ILBM_Image *image)
{
if(image->bitMapHeader == NULL)
{
IFF_error("Error: no bitmap header defined!\n");
return FALSE;
}
return TRUE;
}
int IFF_writeList(FILE *file, const IFF_List *list, const IFF_Extension *extension, const unsigned int extensionLength)
{
unsigned int i;
if(!IFF_writeId(file, list->contentsType, CHUNKID, "contentsType"))
{
IFF_error("Error writing contentsType!\n");
return FALSE;
}
for(i = 0; i < list->propLength; i++)
{
if(!IFF_writeChunk(file, (IFF_Chunk*)list->prop[i], NULL, extension, extensionLength))
{
IFF_error("Error writing PROP!\n");
return FALSE;
}
}
if(!IFF_writeGroupSubChunks(file, (IFF_Group*)list, NULL, extension, extensionLength))
return FALSE;
return TRUE;
}
IFF_List *IFF_readList(FILE *file, const IFF_Long chunkSize, const IFF_Extension *extension, const unsigned int extensionLength)
{
IFF_ID contentsType;
IFF_List *list;
/* Read the contentsType id */
if(!IFF_readId(file, contentsType, CHUNKID, "contentsType"))
return NULL;
/* Create new list */
list = IFF_createList(contentsType);
/* Read the remaining nested sub chunks */
while(list->chunkSize < chunkSize)
{
/* Read sub chunk */
IFF_Chunk *chunk = IFF_readChunk(file, NULL, extension, extensionLength);
if(chunk == NULL)
{
IFF_error("Error reading chunk in list!\n");
IFF_freeChunk((IFF_Chunk*)list, NULL, extension, extensionLength);
return NULL;
}
/* Add the prop or chunk */
if(IFF_compareId(chunk->chunkId, "PROP") == 0)
IFF_addPropToList(list, (IFF_Prop*)chunk);
else
IFF_addToList(list, chunk);
}
/* Set the chunk size to what we have read */
list->chunkSize = chunkSize;
/* Return the resulting list */
return list;
}
