Changeset 44 for trunk/src/gl/gl_vertex_buffer.cc

Timestamp:

05/28/13 16:48:29 (12 years ago)

Author:

epyon

Message:

• context bugfixes, force apply state at creation and apply render state
• window creates context
• index buffer
• vertex arrays (simulation of GL 3 functionality)
• bugfixes

File:

• trunk/src/gl/gl_vertex_buffer.cc (modified) (1 diff)

trunk/src/gl/gl_vertex_buffer.cc

@@ -40 +40 @@
         return m_name.is_valid();
 }
+
+gl_index_buffer::gl_index_buffer( buffer_hint hint, int size, void* data ) 
+        : index_buffer( hint, size ), m_name()
+{
+        if (data)
+        {
+                assign( data );
+        }
+}
+
+void gl_index_buffer::assign( void* data )
+{
+        glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, m_name.get_value() );
+        glBufferData( GL_ELEMENT_ARRAY_BUFFER, m_size, data, buffer_hint_to_enum( m_hint ) );
+        glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, 0);
+}
+
+void gl_index_buffer::bind()
+{
+        glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, m_name.get_value() );
+}
+
+void gl_index_buffer::unbind()
+{
+        glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, 0 );
+}
+
+bool gl_index_buffer::is_valid() const
+{
+        return m_name.is_valid();
+}
+
+gl_vertex_array::gl_vertex_array()
+{
+
+}
+
+void gl_vertex_array::bind()
+{
+        for ( vertex_buffer_attribute_map::iterator i = m_map.begin();  i != m_map.end(); ++i ) 
+        {
+                int location                = i->first;
+                vertex_buffer_attribute* va = i->second;
+                vertex_buffer*           vb = va->get_buffer();
+                glEnableVertexAttribArray( location );
+                vb->bind();
+                glVertexAttribPointer( 
+                        location, 
+                        va->get_components(), 
+                        nv::type_to_gl_enum( va->get_datatype() ),
+                        GL_FALSE,
+                        va->get_stride(),
+                        (void*)va->get_offset()
+                        );
+                vb->unbind();
+        }
+
+}
+
+void gl_vertex_array::unbind()
+{
+        for ( vertex_buffer_attribute_map::iterator i = m_map.begin();  i != m_map.end(); ++i ) 
+        {
+                glDisableVertexAttribArray( i->first );
+        }
+}