Add tessellation shader support to the engine

[libs/gl.git] / source / core / batch.cpp

diff --git a/source/core/batch.cpp b/source/core/batch.cpp
index c68beab908f8dc2a07c699a8b7bd6a9e41b5f35c..83b7d49b53b69885799a03bfea9e9f33cbb7b4f4 100644 (file)
--- a/source/core/batch.cpp
+++ b/source/core/batch.cpp
@@ -73,6 +73,16 @@ void Batch::set_index_type(DataType t)
        mark_dirty();
 }
 
+void Batch::set_patch_size(unsigned s)
+{
+       if(prim_type!=PATCHES)
+               throw invalid_operation("Batch::set_patch_size");
+       if(s<1)
+               throw invalid_argument("Batch::set_patch_size");
+
+       patch_size = s;
+}
+
 Batch &Batch::append(unsigned i)
 {
        append_index(i);
@@ -176,6 +186,7 @@ Batch::Loader::Loader(Batch &b):
        DataFile::ObjectLoader<Batch>(b)
 {
        add("indices", &Loader::indices);
+       add("patch_size", &Loader::patch_size);
 }
 
 void Batch::Loader::indices(const vector<unsigned> &ind)
@@ -183,5 +194,10 @@ void Batch::Loader::indices(const vector<unsigned> &ind)
        obj.append(ind);
 }
 
+void Batch::Loader::patch_size(unsigned s)
+{
+       obj.set_patch_size(s);
+}
+
 } // namespace GL
 } // namespace Msp