LPD3DTLVERTEX get_terrain_3d_buffered_vertices ( int number_of_vertices )
{
if ( vertex_buffer == -1 )
{
//
// Open up a vertex buffer
//
base_index = 0;
vertex_buffer = 0;
vertex_buffer_indices[vertex_buffer].base_index = 0;
vertex_buffer_indices[vertex_buffer].number_of_vertices_buffered = 0;
buffered_vertices = get_d3d_alpha_vertex_buffer_vertices ( vertex_buffer );
}
if ( vertex_buffer_indices[vertex_buffer].number_of_vertices_buffered + number_of_vertices > 256 )
{
//
// Move onto the next vertex buffer
//
ASSERT ( vertex_buffer < ( MAX_ALPHA_VERTEX_BUFFERS -1 ) );
unlock_d3d_alpha_vertex_buffer ( vertex_buffer );
vertex_buffer_indices[vertex_buffer].number = base_index - vertex_buffer_indices[vertex_buffer].base_index;
vertex_buffer++;
vertex_buffer_indices[vertex_buffer].base_index = base_index;
vertex_buffer_indices[vertex_buffer].number_of_vertices_buffered = 0;
buffered_vertices = get_d3d_alpha_vertex_buffer_vertices ( vertex_buffer );
}
return ( &buffered_vertices[vertex_buffer_indices[vertex_buffer].number_of_vertices_buffered] );
}
void draw_terrain_3d_buffered_polygons ( void )
{
if ( vertex_buffer != -1 )
{
//
// Finalise the last vertex buffer used
//
unlock_d3d_alpha_vertex_buffer ( vertex_buffer );
vertex_buffer_indices[vertex_buffer].number = base_index - vertex_buffer_indices[vertex_buffer].base_index;
if ( base_index )
{
int
count;
//
// Flush any buffered primitives
//
finalise_primitives ();
//
// Set the alpha blend modes
//
set_d3d_alpha_fog_zbuffer ( TRUE, FALSE, TRUE, FALSE );
//
// Set the texture handle
//
set_d3d_texture ( 0, load_hardware_texture_map ( terrain_buffered_polygons_texture ) );
//
// Draw all the buffered vertex buffers
//
for ( count = 0; count <= vertex_buffer; count++ )
{
#ifdef _WIN32
unsigned int
d3drval;
d3drval = IDirect3DDevice7_DrawIndexedPrimitiveVB ( d3d.device, D3DPT_TRIANGLELIST, d3d.alpha_vertex_buffer[count],
0,
vertex_buffer_indices[count].number_of_vertices_buffered,
&buffered_indices[ vertex_buffer_indices[count].base_index ],
vertex_buffer_indices[count].number,
( unsigned long ) ( 0 ) );
if ( d3drval != DD_OK )
{
debug_log ( "Unable to draw buffered triangles: %s", get_ddraw_error_message ( d3drval ) );
}
#endif
Transform();
glVertexPointer(3, GL_FLOAT, sizeof(D3DTLVERTEX), 0);
glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(D3DTLVERTEX), (GLvoid *) offsetof(D3DTLVERTEX, r));
glTexCoordPointer(2, GL_FLOAT, sizeof(D3DTLVERTEX), (GLvoid *) offsetof(D3DTLVERTEX, tu));
glDrawElements(GL_TRIANGLES,vertex_buffer_indices[count].number,GL_UNSIGNED_SHORT, (GLvoid *) buffered_indices[ vertex_buffer_indices[count].base_index]);
// OpenGlDrawIndexedBuffer(GL_TRIANGLES,d3d.alpha_vertex_buffer[count],0,vertex_buffer_indices[count].number_of_vertices_buffered,
// buffered_indices[ vertex_buffer_indices[count].base_index]);
}
//
// Turn the blend mode off
//
set_d3d_alpha_fog_zbuffer ( FALSE, TRUE, TRUE, TRUE );
}
//
// Reset the things!
//
reset_terrain_3d_buffered_polygons ();
}
}
void draw_terrain_3d_buffered_polygons ( void )
{
if ( vertex_buffer != -1 )
{
//
// Finalise the last vertex buffer used
//
unlock_d3d_alpha_vertex_buffer ( vertex_buffer );
vertex_buffer_indices[vertex_buffer].number = base_index - vertex_buffer_indices[vertex_buffer].base_index;
if ( base_index )
{
int
count;
//
// Flush any buffered primitives
//
finalise_primitives ();
//
// Set the alpha blend modes
//
set_d3d_alpha_fog_zbuffer ( TRUE, FALSE, TRUE, FALSE );
//
// Set the texture handle
//
set_d3d_texture ( 0, terrain_buffered_polygons_texture );
//
// Draw all the buffered vertex buffers
//
for ( count = 0; count <= vertex_buffer; count++ )
{
f3d_draw_vb ( D3DPT_TRIANGLELIST, d3d.alpha_vertex_buffer[count],
0,
vertex_buffer_indices[count].number_of_vertices_buffered,
&buffered_indices[ vertex_buffer_indices[count].base_index ],
vertex_buffer_indices[count].number );
}
//
// Turn the blend mode off
//
set_d3d_alpha_fog_zbuffer ( FALSE, TRUE, TRUE, TRUE );
}
//
// Reset the things!
//
reset_terrain_3d_buffered_polygons ();
}
}
