nuclear@13: #include "goat3d.h"
nuclear@13: #include "chunk.h"
nuclear@13: 
nuclear@13: ChunkHeader chunk_header(int id)
nuclear@13: {
nuclear@13: 	ChunkHeader hdr;
nuclear@13: 	hdr.id = id;
nuclear@13: 	hdr.size = sizeof hdr;
nuclear@13: 	return hdr;
nuclear@13: }
nuclear@13: 
nuclear@13: bool write_chunk_header(const ChunkHeader *hdr, goat3d_io *io)
nuclear@13: {
nuclear@13: 	io->seek(-hdr->size, SEEK_CUR, io->cls);
nuclear@13: 	if(io->write(hdr, sizeof *hdr, io->cls) < (ssize_t)sizeof *hdr) {
nuclear@13: 		return false;
nuclear@13: 	}
nuclear@13: 	return true;
nuclear@13: }
nuclear@13: 
nuclear@13: bool read_chunk_header(ChunkHeader *hdr, goat3d_io *io)
nuclear@13: {
nuclear@13: 	if(io->read(hdr, sizeof *hdr, io->cls) < (ssize_t)sizeof *hdr) {
nuclear@13: 		return false;
nuclear@13: 	}
nuclear@13: 	return true;
nuclear@13: }
nuclear@13: 
nuclear@13: void skip_chunk(const ChunkHeader *hdr, goat3d_io *io)
nuclear@13: {
nuclear@13: 	io->seek(hdr->size - sizeof *hdr, SEEK_CUR, io->cls);
nuclear@13: }