- SCM
- irr_video_drawVertexPrimitiveList (SCM wrapped_video_driver,
- SCM vertices,
- SCM indices,
- SCM rest)
- {
- SCM v_type = scm_from_utf8_symbol ("standard");
- SCM p_type = scm_from_utf8_symbol ("triangles");
-
- scm_c_bind_keyword_arguments ("draw-vertex-primitive-list", rest, (scm_t_keyword_arguments_flags)0,
- scm_from_utf8_keyword ("vertex-type"), &v_type,
- scm_from_utf8_keyword ("primitive-type"), &p_type,
- SCM_UNDEFINED);
-
- // Build vertex array
- irr::u32 vertex_count = scm_to_uint32 (scm_length (vertices));
- irr::video::S3DVertex s3d_vertices [vertex_count];
- for (int i = 0; i < vertex_count; i++)
- {
- irr::video::S3DVertex* vertex = unwrap_vertex3d (scm_list_ref (vertices, scm_from_int (i)));
- s3d_vertices[i] = irr::video::S3DVertex (vertex->Pos,
- vertex->Normal,
- vertex->Color,
- vertex->TCoords);
- }
-
- // Build index array
- irr::u32 index_count = scm_to_uint32 (scm_length (indices));
- SCM flat_indices = scm_apply_0 (scm_eval_string (scm_from_utf8_string ("append")),
- indices);
- int flat_length = scm_to_int (scm_length (flat_indices));
- irr::u32 c_indices [flat_length];
- for (int i = 0; i < flat_length; i++)
- {
- c_indices[i] = scm_to_uint32 (scm_list_ref (flat_indices, scm_from_int (i)));
- }
-
- // Draw vertices
- irr::video::IVideoDriver* driver = unwrap_video_driver (wrapped_video_driver);
- driver->drawVertexPrimitiveList (&s3d_vertices[0],
- vertex_count,
- &c_indices[0],
- index_count,
- scm_to_vertex_type (v_type),
- scm_to_primitive_type (p_type),
- irr::video::EIT_32BIT);
- return SCM_UNSPECIFIED;
- }