Changeset 469 for trunk/src/gfx

Timestamp:

09/17/15 17:17:20 (10 years ago)

Author:

epyon

Message:

• stl/short_string - minor fix
• stl/utility - max for 3 arguments
• stl/math length_sq
• interface/context - proper handling of buffer ownage in va's
• wx/canvas - sleep added

File:

• trunk/src/gfx/debug_draw.cc (modified) (2 diffs)

trunk/src/gfx/debug_draw.cc

@@ -8 +8 @@
 
 #include "nv/interface/device.hh"
+#include "nv/core/logging.hh"
 
 static const char *nv_debug_draw_vertex_shader = R"(
@@ -34 +35 @@
 {
         m_program = m_context->get_device()->create_program( nv_debug_draw_vertex_shader, nv_debug_draw_fragment_shader );
+        m_buffer_size = 0;
 }
 
 void nv::debug_data::update()
 {
-        m_context->release( m_va );
-        m_va = m_context->create_vertex_array( m_data, nv::STATIC_DRAW );
+        if ( !m_va.is_valid() || m_data.size() > m_buffer_size )
+        {
+                if ( m_va.is_valid() ) m_context->release( m_va );
+                m_buffer_size = nv::max( m_data.size(), 4096U, m_buffer_size );
+                m_va = m_context->create_vertex_array();
+                m_vb = m_context->get_device()->create_buffer( VERTEX_BUFFER, nv::STREAM_DRAW, m_buffer_size * sizeof( debug_vtx ), m_data.data() );
+                m_context->add_vertex_buffers< debug_vtx >( m_va, m_vb, true );
+        }
+        else
+        {
+                m_context->update( m_vb, m_data.data(), 0, m_data.size()* sizeof( debug_vtx ) );
+        }
 }