X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;ds=sidebyside;f=source%2Fpartcache.cpp;h=560db298e8edca248b42c32bbc0926f370b70e68;hb=b4d0a86b77fb5146f5a4f6c76690c16204210f1a;hp=e270dc4775eef4f005161304587fa3c58d17f915;hpb=1aa6cd9b865e366737dcc9d2d36c4f8faed5bc4f;p=libs%2Fgltk.git

diff --git a/source/partcache.cpp b/source/partcache.cpp
index e270dc4..560db29 100644
--- a/source/partcache.cpp
+++ b/source/partcache.cpp
@@ -1,24 +1,77 @@
+#include "part.h"
 #include "partcache.h"
 
+using namespace std;
+
 namespace Msp {
 namespace GLtk {
 
-CachedPart::CachedPart():
-	texture(0),
-	mesh(0)
-{ }
+void PartCache::begin_rebuild()
+{
+	if(rebuilding)
+		throw logic_error("nested rebuild");
+	rebuilding = true;
+
+	next = parts.begin();
+	current = parts.end();
+}
 
-CachedPart::~CachedPart()
+void PartCache::insert_special(const Part &part)
 {
-	delete mesh;
+	if(part.get_name().empty())
+		throw invalid_argument("PartCache::insert_special");
+	if(!rebuilding)
+		throw logic_error("!rebuilding");
+
+	current = find_if(next, parts.end(), [&part](const CachedPart &p){ return p.part==∂ });
+	if(current!=parts.end())
+		parts.erase(next, current);
+
+	if(current==parts.end())
+		current = parts.insert(next, CachedPart());
+	else
+		*current = CachedPart();
+	current->part = ∂
+
+	next = current;
+	++next;
 }
 
-void CachedPart::clear_mesh()
+GL::Mesh &PartCache::create_mesh(const Part &part, const GL::Texture2D &tex)
 {
-	if(!mesh)
-		mesh = new GL::Mesh((GL::TEXCOORD2, GL::COLOR4_UBYTE, GL::VERTEX2));
+	if(!rebuilding)
+		throw logic_error("!rebuilding");
+
+	if(current!=parts.end() && current->texture==&tex)
+		return *current->mesh;
+
+	for(current=next; current!=parts.end(); ++current)
+		if(current->texture==&tex)
+		{
+			parts.erase(next, current);
+			break;
+		}
+
+	if(current==parts.end())
+	{
+		current = parts.insert(next, CachedPart());
+		current->texture = &tex;
+		current->mesh = make_unique<GL::Mesh>((GL::TEXCOORD2, GL::COLOR4,GL::UNSIGNED_BYTE, GL::VERTEX2));
+	}
 	else
-		mesh->clear();
+		current->mesh->clear();
+	current->part = &part;
+
+	next = current;
+	++next;
+
+	return *current->mesh;
+}
+
+void PartCache::end_rebuild()
+{
+	rebuilding = false;
+	parts.erase(next, parts.end());
 }
 
 } // namespace GLtk