X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=laserbrain_demo;a=blobdiff_plain;f=src%2Fmetascene.cc;h=fd4569b17beaa9b888a2277660952d3951ebb324;hp=2328f33ee9b0cb6c03d9a64f3824a4b5827863a9;hb=d29eba477666f0753170d9ad549a4715ce071d04;hpb=80c04e7a9aa6d42f769dd4fa70c2c3113440cbce diff --git a/src/metascene.cc b/src/metascene.cc index 2328f33..fd4569b 100644 --- a/src/metascene.cc +++ b/src/metascene.cc @@ -1,3 +1,13 @@ +/*! \file + * \brief Metascene implementation + * + * Loading starts at `MetaScene::load`, which calls `ts_load` (libtreestore) + * to load the metascene description tree into memory. Then `proc_node` is + * called at the root to recursively process the tree. `scenefile` nodes are + * handed over to `proc_scenefile`, which will trigger scene loading for any + * nodes with a `file` attribute. Scene loading is handled by requesting the + * filename from the scene resource manager, which is of type [SceneSet](\ref SceneSet). + */ #include #include #include @@ -22,6 +32,7 @@ struct MaterialEdit { static bool proc_node(MetaScene *mscn, struct ts_node *node); static bool proc_scenefile(MetaScene *mscn, struct ts_node *node); static bool proc_mtledit(MetaScene *mscn, MaterialEdit *med, struct ts_node *node); +static bool proc_music(MetaScene *mscn, struct ts_node *node); static void apply_mtledit(Scene *scn, const MaterialEdit &med); static void apply_mtledit(Material *mtl, const MaterialEdit &med); static struct ts_attr *attr_inscope(struct ts_node *node, const char *name); @@ -32,14 +43,15 @@ static void print_scene_graph(SceneNode *n, int level); MetaScene::MetaScene() { walk_mesh = 0; + music = 0; } MetaScene::~MetaScene() { delete walk_mesh; + delete music; } - bool MetaScene::load(const char *fname) { struct ts_node *root = ts_load(fname); @@ -146,6 +158,9 @@ static bool proc_node(MetaScene *mscn, struct ts_node *node) if(match && replace) { mscn->datamap.map(match, replace); } + + } else if(strcmp(node->name, "music") == 0) { + return proc_music(mscn, node); } return true; @@ -159,6 +174,9 @@ struct SceneData { std::vector mtledit; }; +/*! Processes a `scenefile` node. And kicks off scene loading (if necessary) by + * calling `SceneSet::get`. + */ static bool proc_scenefile(MetaScene *mscn, struct ts_node *node) { const char *fname = ts_get_attr_str(node, "file"); @@ -212,7 +230,7 @@ static bool proc_scenefile(MetaScene *mscn, struct ts_node *node) fname = namebuf; } - // material edits + // material edits are kept in a list to be applied when the scene has been loaded struct ts_node *child = node->child_list; while(child) { MaterialEdit medit; @@ -366,6 +384,37 @@ static void apply_mtledit(Scene *scn, const MaterialEdit &med) } } +static bool proc_music(MetaScene *mscn, struct ts_node *node) +{ + const char *fname = ts_get_attr_str(node, "file"); + if(fname) { + SceneData *sdat = new SceneData; + sdat->meta = mscn; + + // datapath + struct ts_attr *adpath = attr_inscope(node, "datapath"); + if(adpath && adpath->val.type == TS_STRING) { + mscn->datamap.set_path(adpath->val.str); + } + + int namesz = mscn->datamap.lookup(fname, 0, 0); + char *namebuf = (char*)alloca(namesz + 1); + if(mscn->datamap.lookup(fname, namebuf, namesz + 1)) { + fname = namebuf; + } + + OggVorbisStream *ovstream = new OggVorbisStream; + if(!ovstream->open(fname)) { + delete ovstream; + return false; + } + + delete mscn->music; + mscn->music = ovstream; + } + return true; +} + static void apply_mtledit(Material *mtl, const MaterialEdit &med) { // TODO more edit modes...