void insert_face_into_mesh()
{
if (!m_inside_mesh_def)
{
// Begin the definition of the new mesh.
m_builder.begin_mesh(m_mesh_name);
m_inside_mesh_def = true;
}
// Insert the features into the mesh, updating index mappings as necessary.
insert_vertices_into_mesh();
insert_vertex_normals_into_mesh();
insert_tex_coords_into_mesh();
// Translate feature indices from internal space to mesh space.
translate_indices(m_face_vertex_indices, m_vertex_index_mapping);
translate_indices(m_face_normal_indices, m_normal_index_mapping);
translate_indices(m_face_tex_coord_indices, m_tex_coord_index_mapping);
const size_t n = m_face_vertex_indices.size();
// Begin defining a new face.
m_builder.begin_face(n);
// Set face vertices.
m_builder.set_face_vertices(&m_face_vertex_indices.front());
// Set face vertex normals (if any).
if (m_face_normal_indices.size() == n)
m_builder.set_face_vertex_normals(&m_face_normal_indices.front());
// Set face vertex texture coordinates (if any).
if (m_face_tex_coord_indices.size() == n)
m_builder.set_face_vertex_tex_coords(&m_face_tex_coord_indices.front());
// End defining the face.
m_builder.end_face();
}
void insert_face_into_mesh()
{
// Begin a mesh definition if we're not already inside one.
ensure_mesh_def();
// Insert the features into the mesh, updating index mappings as necessary.
insert_vertices_into_mesh();
insert_vertex_normals_into_mesh();
insert_tex_coords_into_mesh();
// Translate feature indices from internal space to mesh space.
translate_indices(m_face_vertex_indices, m_vertex_index_mapping);
translate_indices(m_face_normal_indices, m_normal_index_mapping);
translate_indices(m_face_tex_coord_indices, m_tex_coord_index_mapping);
const size_t n = m_face_vertex_indices.size();
// Begin defining a new face.
m_builder.begin_face(n);
// Set face vertices.
m_builder.set_face_vertices(&m_face_vertex_indices.front());
// Set face vertex normals (if any).
if (m_face_normal_indices.size() == n)
m_builder.set_face_vertex_normals(&m_face_normal_indices.front());
// Set face vertex texture coordinates (if any).
if (m_face_tex_coord_indices.size() == n)
m_builder.set_face_vertex_tex_coords(&m_face_tex_coord_indices.front());
// Set face material.
m_builder.set_face_material(m_current_material_slot_index);
// End defining the face.
m_builder.end_face();
}
enum pipe_error
svga_hwtnl_draw_range_elements(struct svga_hwtnl *hwtnl,
struct pipe_resource *index_buffer,
unsigned index_size, int index_bias,
unsigned min_index, unsigned max_index,
unsigned prim, unsigned start, unsigned count,
unsigned start_instance, unsigned instance_count)
{
unsigned gen_prim, gen_size, gen_nr;
enum indices_mode gen_type;
u_translate_func gen_func;
enum pipe_error ret = PIPE_OK;
if (hwtnl->api_fillmode != PIPE_POLYGON_MODE_FILL &&
prim >= PIPE_PRIM_TRIANGLES) {
gen_type = u_unfilled_translator(prim,
index_size,
count,
hwtnl->api_fillmode,
&gen_prim,
&gen_size, &gen_nr, &gen_func);
}
else {
gen_type = u_index_translator(svga_hw_prims,
prim,
index_size,
count,
hwtnl->api_pv,
hwtnl->hw_pv,
PR_DISABLE,
&gen_prim, &gen_size, &gen_nr, &gen_func);
}
if (gen_type == U_TRANSLATE_MEMCPY) {
/* No need for translation, just pass through to hardware:
*/
return svga_hwtnl_simple_draw_range_elements(hwtnl, index_buffer,
index_size,
index_bias,
min_index,
max_index,
gen_prim, start, count,
start_instance,
instance_count);
}
else {
struct pipe_resource *gen_buf = NULL;
/* Need to allocate a new index buffer and run the translate
* func to populate it. Could potentially cache this translated
* index buffer with the original to avoid future
* re-translations. Not much point if we're just accelerating
* GL though, as index buffers are typically used only once
* there.
*/
ret = translate_indices(hwtnl,
index_buffer,
start * index_size,
gen_prim, gen_nr, gen_size, gen_func, &gen_buf);
if (ret != PIPE_OK)
goto done;
ret = svga_hwtnl_simple_draw_range_elements(hwtnl,
gen_buf,
gen_size,
index_bias,
min_index,
max_index,
gen_prim, 0, gen_nr,
start_instance,
instance_count);
if (ret != PIPE_OK)
goto done;
done:
if (gen_buf)
pipe_resource_reference(&gen_buf, NULL);
return ret;
}
}