From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 5 Dec 2010 19:16:12 +0000 (+0000)
Subject: Add a MatrixStack to VertexBuilder
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=524515ae47ea553e8e1b9381c2027208f2d096db

Add a MatrixStack to VertexBuilder
Change the vertex handler function to take a Vector4 as parameter
---

diff --git a/source/primitivebuilder.cpp b/source/primitivebuilder.cpp
index 22106a34..42e9d39c 100644
--- a/source/primitivebuilder.cpp
+++ b/source/primitivebuilder.cpp
@@ -53,7 +53,7 @@ PrimitiveType PrimitiveBuilder::get_type() const
 	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 +61,7 @@ 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);
diff --git a/source/primitivebuilder.h b/source/primitivebuilder.h
index 8cc1e729..a4e34a67 100644
--- a/source/primitivebuilder.h
+++ b/source/primitivebuilder.h
@@ -38,7 +38,7 @@ public:
 	void element(unsigned);
 	PrimitiveType get_type() const;
 protected:
-	virtual void vertex_(float, float, float, float);
+	virtual void vertex_(const Vector4 &);
 	virtual void begin_() =0;
 	virtual void end_() =0;
 	virtual void element_(unsigned) =0;
diff --git a/source/vertexarraybuilder.cpp b/source/vertexarraybuilder.cpp
index 5c0a0196..c31a60a6 100644
--- a/source/vertexarraybuilder.cpp
+++ b/source/vertexarraybuilder.cpp
@@ -20,7 +20,7 @@ VertexArrayBuilder::~VertexArrayBuilder()
 	array.update_data();
 }
 
-void VertexArrayBuilder::vertex_(float x, float y, float z, float w)
+void VertexArrayBuilder::vertex_(const Vector4 &v)
 {
 	float *ptr = array.append();
 	for(const unsigned char *c=array.get_format().begin(); c!=array.get_format().end(); ++c)
@@ -30,10 +30,10 @@ void VertexArrayBuilder::vertex_(float x, float y, float z, float w)
 		switch(t)
 		{
 		case 0:
-			*ptr++ = x;
-			*ptr++ = y;
-			if(sz>=3) *ptr++ = z;
-			if(sz>=4) *ptr++ = w;
+			*ptr++ = v.x;
+			*ptr++ = v.y;
+			if(sz>=3) *ptr++ = v.z;
+			if(sz>=4) *ptr++ = v.w;
 			break;
 		case 1:
 			*ptr++ = nor.x;
diff --git a/source/vertexarraybuilder.h b/source/vertexarraybuilder.h
index 3b1f8216..b6af0b95 100644
--- a/source/vertexarraybuilder.h
+++ b/source/vertexarraybuilder.h
@@ -28,7 +28,7 @@ public:
 	~VertexArrayBuilder();
 
 private:
-	virtual void vertex_(float, float, float, float);
+	virtual void vertex_(const Vector4 &);
 };
 
 } // namespace GL
diff --git a/source/vertexbuilder.h b/source/vertexbuilder.h
index e7f9b132..764fef50 100644
--- a/source/vertexbuilder.h
+++ b/source/vertexbuilder.h
@@ -10,6 +10,7 @@ Distributed under the LGPL
 
 #include <map>
 #include "color.h"
+#include "matrix.h"
 #include "vector.h"
 
 namespace Msp {
@@ -26,11 +27,21 @@ data.  Attributes can be read from protected member variables.
 */
 class VertexBuilder
 {
+protected:
+	MatrixStack mtx;
+	Vector3 nor;
+	Color col;
+	std::map<unsigned, Vector4> texc;
+	std::map<unsigned, Vector4> attr;
+
 public:
 	VertexBuilder(): nor(0, 0, 1) { }
 
 	virtual ~VertexBuilder() { }
 
+	MatrixStack &matrix()
+	{ return mtx; }
+
 	void vertex(float x, float y)
 	{ vertex(x, y, 0, 1); }
 
@@ -38,20 +49,23 @@ public:
 	{ vertex(x, y, z, 1); }
 
 	void vertex(float x, float y, float z, float w)
-	{ vertex_(x, y, z, w); }
+	{ vertex(Vector4(x, y, z, w)); }
 
 	void vertex(const Vector4 &v)
-	{ vertex(v.x, v.y, v.z, v.w); }
+	{ vertex_(mtx.top()*v); }
 
 protected:
-	virtual void vertex_(float x, float y, float z, float w) =0;
+	virtual void vertex_(const Vector4 &) = 0;
 
 public:
 	void normal(float x, float y, float z)
 	{ normal(Vector3(x, y, z)); }
 
 	void normal(const Vector3 &n)
-	{ nor = n; }
+	{
+		Vector4 tn = mtx.top()*Vector4(n.x, n.y, n.z, 0);
+		nor = Vector3(tn.x, tn.y, tn.z);
+	}
 
 	void texcoord(float s)
 	{ texcoord(s, 0, 0, 1); }
@@ -112,12 +126,6 @@ public:
 
 	void attrib(unsigned i, const Vector4 &a)
 	{ attr[i] = a; }
-
-protected:
-	Vector3 nor;
-	Color col;
-	std::map<unsigned, Vector4> texc;
-	std::map<unsigned, Vector4> attr;
 };
 
 } // namespace GL