X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fpartcache.cpp;h=3b944572a45abb8874b06a7f4313e569fab123dd;hb=6deafc9f236b90175a303944815f7c0eac1c95c1;hp=e270dc4775eef4f005161304587fa3c58d17f915;hpb=1aa6cd9b865e366737dcc9d2d36c4f8faed5bc4f;p=libs%2Fgltk.git

diff --git a/source/partcache.cpp b/source/partcache.cpp
index e270dc4..3b94457 100644
--- a/source/partcache.cpp
+++ b/source/partcache.cpp
@@ -1,9 +1,13 @@
+#include "part.h"
 #include "partcache.h"
 
+using namespace std;
+
 namespace Msp {
 namespace GLtk {
 
 CachedPart::CachedPart():
+	part(0),
 	texture(0),
 	mesh(0)
 { }
@@ -13,12 +17,80 @@ CachedPart::~CachedPart()
 	delete mesh;
 }
 
-void CachedPart::clear_mesh()
+
+PartCache::PartCache():
+	rebuilding(false)
+{ }
+
+void PartCache::begin_rebuild()
+{
+	if(rebuilding)
+		throw logic_error("nested rebuild");
+	rebuilding = true;
+
+	next = parts.begin();
+	current = parts.end();
+}
+
+void PartCache::insert_special(const Part &part)
 {
-	if(!mesh)
-		mesh = new GL::Mesh((GL::TEXCOORD2, GL::COLOR4_UBYTE, GL::VERTEX2));
+	if(part.get_name().empty())
+		throw invalid_argument("PartCache::insert_special");
+	if(!rebuilding)
+		throw logic_error("!rebuilding");
+
+	for(current=next; current!=parts.end(); ++current)
+		if(current->part==&part)
+		{
+			parts.erase(next, current);
+			break;
+		}
+
+	if(current==parts.end())
+		current = parts.insert(next, CachedPart());
 	else
-		mesh->clear();
+		*current = CachedPart();
+	current->part = ∂
+
+	next = current;
+	++next;
+}
+
+GL::Mesh &PartCache::create_mesh(const Part &part, const GL::Texture2D &tex)
+{
+	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 = new GL::Mesh((GL::TEXCOORD2, GL::COLOR4,GL::UNSIGNED_BYTE, GL::VERTEX2));
+	}
+	else
+		current->mesh->clear();
+	current->part = ∂
+
+	next = current;
+	++next;
+
+	return *current->mesh;
+}
+
+void PartCache::end_rebuild()
+{
+	rebuilding = false;
+	parts.erase(next, parts.end());
 }
 
 } // namespace GLtk