/**
* Flush existing vertex buffer and allocate a new one.
*/
static void
vbuf_flush_vertices( struct vbuf_stage *vbuf )
{
if(vbuf->vertices) {
vbuf->render->unmap_vertices( vbuf->render, 0, vbuf->nr_vertices - 1 );
if (vbuf->nr_indices)
{
vbuf->render->draw(vbuf->render,
vbuf->indices,
vbuf->nr_indices );
vbuf->nr_indices = 0;
}
/* Reset temporary vertices ids */
if(vbuf->nr_vertices)
draw_reset_vertex_ids( vbuf->stage.draw );
/* Free the vertex buffer */
vbuf->render->release_vertices( vbuf->render );
vbuf->max_vertices = vbuf->nr_vertices = 0;
vbuf->vertex_ptr = vbuf->vertices = NULL;
}
}
/**
* Flush existing vertex buffer and allocate a new one.
*/
static void
vbuf_flush_vertices( struct vbuf_stage *vbuf )
{
if(vbuf->vertices) {
vbuf->render->unmap_vertices( vbuf->render, 0, vbuf->nr_vertices - 1 );
if (vbuf->nr_indices)
{
vbuf->render->draw_elements(vbuf->render,
vbuf->indices,
vbuf->nr_indices );
vbuf->nr_indices = 0;
}
/* Reset temporary vertices ids */
if(vbuf->nr_vertices)
draw_reset_vertex_ids( vbuf->stage.draw );
/* Free the vertex buffer */
vbuf->render->release_vertices( vbuf->render );
vbuf->max_vertices = vbuf->nr_vertices = 0;
vbuf->vertex_ptr = vbuf->vertices = NULL;
}
/* Reset point/line/tri function pointers.
* If (for example) we transition from points to tris and back to points
* again, we need to call the vbuf_first_point() function again to flush
* the triangles before drawing more points. This can happen when drawing
* with front polygon mode = filled and back polygon mode = line or point.
*/
vbuf->stage.point = vbuf_first_point;
vbuf->stage.line = vbuf_first_line;
vbuf->stage.tri = vbuf_first_tri;
}