From 745b4e04e5f23a02e5d9b12ebabf38d6dd034136 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Sat, 20 Feb 2010 21:52:31 +0000
Subject: Use interleaved vertex arrays

---
 src/model/vertexarray.cc | 52 ++++++++++++++++++++++++++++--------------------
 1 file changed, 30 insertions(+), 22 deletions(-)

(limited to 'src/model/vertexarray.cc')

diff --git a/src/model/vertexarray.cc b/src/model/vertexarray.cc
index 057b80d..861090c 100644
--- a/src/model/vertexarray.cc
+++ b/src/model/vertexarray.cc
@@ -19,25 +19,21 @@ VertexArray *VertexArray::vertex_instance = 0 ;
 VertexArray::VertexArray(size_t size)
 {
 	vertex_instance = this;
-	vertex_size = size * 1024 * 1024;			// megabytes
-	vertex_size = vertex_size / sizeof(float);	// sizeof float
-	vertex_size = vertex_size / 3;			// 3 arrays
 
-	vertex_vertex = (float *) malloc(vertex_size * sizeof(float));
-	vertex_normal = (float *) malloc(vertex_size * sizeof(float));
-	vertex_texture = (float *) malloc(vertex_size * sizeof(float));
+	vertex_size = size * 1024 * 1024;		// megabytes
+	vertex_size = vertex_size / sizeof(float);	// sizeof float
+	
+	vertex_data = (float *) malloc(vertex_size * sizeof(float));
 
 	con_print << "^BInitializing vertex array..." << std::endl;
-	con_print << "  " << size << " Mb allocated" << std::endl;
+	con_print << "  " << sizeof(vertex_data) / (1024 * 1024) << " Mb allocated" << std::endl;
 
 	clear();
 }
 
 VertexArray::~VertexArray()
 {
-	free(vertex_vertex);
-	free(vertex_normal);
-	free(vertex_texture);
+	free(vertex_data);
 
 	vertex_instance = 0 ;
 }
@@ -47,9 +43,7 @@ void VertexArray::clear()
 	vertex_index = 0;
 	vertex_overflow = false;
 
-	memset(vertex_vertex, 0, sizeof(vertex_vertex));
-	memset(vertex_normal, 0, sizeof(vertex_normal));
-	memset(vertex_texture, 0, sizeof(vertex_texture));
+	memset(vertex_data, 0, sizeof(vertex_data));
 
 	add_sphere();
 }
@@ -136,7 +130,8 @@ void VertexArray::add_sphere()
 
 size_t VertexArray::add_vertex(math::Vector3f const &v, math::Vector3f const &n, float tex_x, float tex_y)
 {
-	if (vertex_index + 3 >= vertex_size) {
+
+	if (vertex_index + 8 >= vertex_size) {
 		if (!vertex_overflow) {
 			con_warn << "VertexArray overflow!" << std::endl;
 			vertex_overflow = true;
@@ -144,20 +139,33 @@ size_t VertexArray::add_vertex(math::Vector3f const &v, math::Vector3f const &n,
 		return 0;
 	}
 
+	// GL_T2F_N3F_V3F
+	
+	// texture coordinates
+	vertex_data[vertex_index] = tex_x;
+	vertex_data[vertex_index+1] = tex_y;
+
 	for (int i = 0; i < 3; i ++) {
-		vertex_vertex[vertex_index+i] = v[i];
-		vertex_normal[vertex_index+i] = n[i];
+		// normal
+		vertex_data[vertex_index+2+i] = n[i];
+		// vertex coordinates
+		vertex_data[vertex_index+5+i] = v[i];
 	}
-
-	vertex_texture[vertex_index] = tex_x;
-	vertex_texture[vertex_index+1] = tex_y;
-	vertex_texture[vertex_index+2] = 0;
-
-	vertex_index += 3;
+	
+	vertex_index += 8;
 
 	return 1;
 }
 
+void VertexArray::info() {
+	const size_t mbfl = 1024 * 1024 / sizeof(float);
+
+	con_print << "  vertex array "
+		<< vertex_index / mbfl << "/" << vertex_size / mbfl << "Mib "
+		<< vertex_index / 8 << "/" << vertex_size / 8 << " verts "
+		<< vertex_index * 100 / vertex_size << "% used"
+		<< std::endl;
+}
 
 }
 
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