goat3d: src/chunk.cc annotate

goat3d

slugishly progressing with the blender exporter

author	John Tsiombikas <nuclear@member.fsf.org>
date	Wed, 09 Oct 2013 16:40:59 +0300
parents	798df5111b56
children	498ca7ac7047

rev	line source
nuclear@13	1 #include "goat3d.h"
nuclear@13	2 #include "chunk.h"
nuclear@13	3
nuclear@13	4 ChunkHeader chunk_header(int id)
nuclear@13	5 {
nuclear@13	6 ChunkHeader hdr;
nuclear@13	7 hdr.id = id;
nuclear@13	8 hdr.size = sizeof hdr;
nuclear@13	9 return hdr;
nuclear@13	10 }
nuclear@13	11
nuclear@13	12 bool write_chunk_header(const ChunkHeader hdr, goat3d_io io)
nuclear@13	13 {
nuclear@24	14 io->seek(-(long)hdr->size, SEEK_CUR, io->cls);
nuclear@24	15 if(io->write(hdr, sizeof hdr, io->cls) < (long)sizeof hdr) {
nuclear@13	16 return false;
nuclear@13	17 }
nuclear@13	18 return true;
nuclear@13	19 }
nuclear@13	20
nuclear@13	21 bool read_chunk_header(ChunkHeader hdr, goat3d_io io)
nuclear@13	22 {
nuclear@24	23 if(io->read(hdr, sizeof hdr, io->cls) < (long)sizeof hdr) {
nuclear@13	24 return false;
nuclear@13	25 }
nuclear@13	26 return true;
nuclear@13	27 }
nuclear@13	28
nuclear@13	29 void skip_chunk(const ChunkHeader hdr, goat3d_io io)
nuclear@13	30 {
nuclear@13	31 io->seek(hdr->size - sizeof *hdr, SEEK_CUR, io->cls);
nuclear@13	32 }