diff options
Diffstat (limited to 'src/mesa/main/arrayobj.c')
| -rw-r--r-- | src/mesa/main/arrayobj.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/mesa/main/arrayobj.c b/src/mesa/main/arrayobj.c index becf32f5cda..2d3b69cd8de 100644 --- a/src/mesa/main/arrayobj.c +++ b/src/mesa/main/arrayobj.c @@ -393,6 +393,34 @@ _mesa_all_varyings_in_vbos(const struct gl_vertex_array_object *vao) return true; } +bool +_mesa_all_buffers_are_unmapped(const struct gl_vertex_array_object *vao) +{ + /* Walk the enabled arrays that have a vbo attached */ + GLbitfield64 mask = vao->_Enabled & vao->VertexAttribBufferMask; + + while (mask) { + const int i = ffsll(mask) - 1; + const struct gl_vertex_attrib_array *attrib_array = + &vao->VertexAttrib[i]; + const struct gl_vertex_buffer_binding *buffer_binding = + &vao->VertexBinding[attrib_array->VertexBinding]; + + /* Only enabled arrays shall appear in the _Enabled bitmask */ + assert(attrib_array->Enabled); + /* We have already masked with vao->VertexAttribBufferMask */ + assert(_mesa_is_bufferobj(buffer_binding->BufferObj)); + + /* Bail out once we find the first disallowed mapping */ + if (_mesa_check_disallowed_mapping(buffer_binding->BufferObj)) + return false; + + /* We have handled everything that is bound to this buffer_binding. */ + mask &= ~buffer_binding->_BoundArrays; + } + + return true; +} /**********************************************************************/ /* API Functions */ |