Share shader data between copied RenderPasses

[libs/gl.git] / source / primitivebuilder.cpp

diff --git a/source/primitivebuilder.cpp b/source/primitivebuilder.cpp
index 22106a344a828326c7329c5f482bc2a230e56a92..dd869908d9240df76b2f48a2308a0396613a35ad 100644 (file)
--- a/source/primitivebuilder.cpp
+++ b/source/primitivebuilder.cpp
@@ -1,25 +1,22 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2008, 2010  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
+#include "error.h"
 #include "primitivebuilder.h"
 
+using namespace std;
+
 namespace Msp {
 namespace GL {
 
 PrimitiveBuilder::PrimitiveBuilder(VertexArray &a):
        array(a),
        vab(array),
-       in_batch(false)
+       in_batch(false),
+       offs(0)
 { }
 
 void PrimitiveBuilder::begin(PrimitiveType t)
 {
        if(in_batch)
-               throw InvalidState("begin() already called");
+               throw invalid_operation("PrimitiveBuilder::begin");
 
        type = t;
        in_batch = true;
@@ -30,30 +27,37 @@ void PrimitiveBuilder::begin(PrimitiveType t)
 void PrimitiveBuilder::end()
 {
        if(!in_batch)
-               throw InvalidState("end() called without begin()");
+               throw invalid_operation("PrimitiveBuilder::end");
 
        in_batch = false;
 
        end_();
 }
 
+void PrimitiveBuilder::offset(unsigned o)
+{
+       if(o>array.size())
+               throw out_of_range("PrimitiveBuilder::offset");
+       offs = o;
+}
+
 void PrimitiveBuilder::element(unsigned i)
 {
        if(!in_batch)
-               throw InvalidState("Element specification not between begin() and end()");
-       if(i>=array.size())
-               throw InvalidParameterValue("Element index out of range");
-       element_(i);
+               throw invalid_operation("PrimitiveBuilder::element");
+       if(offs+i>=array.size())
+               throw out_of_range("PrimitiveBuilder::element");
+       element_(offs+i);
 }
 
 PrimitiveType PrimitiveBuilder::get_type() const
 {
        if(!in_batch)
-               throw InvalidState("Not between begin() and end()");
+               throw invalid_operation("PrimitiveBuilder::get_type");
        return type;
 }
 
-void PrimitiveBuilder::vertex_(float x, float y, float z, float w)
+void PrimitiveBuilder::vertex_(const Vector4 &v)
 {
        vab.color(col);
        vab.normal(nor);
@@ -61,7 +65,7 @@ void PrimitiveBuilder::vertex_(float x, float y, float z, float w)
                vab.multitexcoord(i->first, i->second);
        for(std::map<unsigned, Vector4>::iterator i=attr.begin(); i!=attr.end(); ++i)
                vab.attrib(i->first, i->second);
-       vab.vertex(x, y, z, w);
+       vab.vertex(v);
 
        if(in_batch)
                element_(array.size()-1);