Panda3D
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This is a special class object that holds all the information returned by a particular GSG to indicate the vertex data array's internal context identifier. More...
#include "vertexBufferContext.h"
Public Member Functions | |
VertexBufferContext (PreparedGraphicsObjects *pgo, GeomVertexArrayData *data) | |
TypedObject * | as_typed_object () |
Returns the object, upcast (if necessary) to a TypedObject pointer. | |
const TypedObject * | as_typed_object () const |
Returns the object, upcast (if necessary) to a TypedObject pointer. | |
bool | changed_size (const GeomVertexArrayDataHandle *reader) const |
Returns true if the data has changed size since the last time mark_loaded() was called. | |
bool | changed_usage_hint (const GeomVertexArrayDataHandle *reader) const |
Returns true if the data has changed its usage hint since the last time mark_loaded() was called. | |
void | dequeue_lru () |
Removes the page from its AdaptiveLru. | |
void | enqueue_lru (AdaptiveLru *lru) |
Adds the page to the LRU for the first time, or marks it recently-accessed if it has already been added. | |
virtual void | evict_lru () |
Evicts the page from the LRU. | |
virtual TypeHandle | force_init_type () |
bool | get_active () const |
Returns the active flag associated with this object. | |
int | get_best_parent_from_Set (const std::set< int > &) const |
GeomVertexArrayData * | get_data () const |
Returns the pointer to the client-side array data object. | |
size_t | get_data_size_bytes () const |
Returns the number of bytes previously reported for the data object. | |
AdaptiveLru * | get_lru () const |
Returns the LRU that manages this page, or NULL if it is not currently managed by any LRU. | |
size_t | get_lru_size () const |
Returns the size of this page as reported to the LRU, presumably in bytes. | |
UpdateSeq | get_modified () const |
Returns the UpdateSeq that was recorded the last time mark_loaded() was called. | |
BufferContext * | get_next () const |
This can be used along with BufferContextChain::get_first() to walk through the list of objects stored on a tracker. | |
unsigned int | get_num_frames () const |
Returns the number of frames since the page was first added to its LRU. | |
unsigned int | get_num_inactive_frames () const |
Returns the number of frames since the page was last accessed on its LRU. | |
bool | get_resident () const |
Returns the resident flag associated with this object. | |
virtual TypeHandle | get_type () const |
int | get_type_index () const |
Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. | |
bool | is_exact_type (TypeHandle handle) const |
Returns true if the current object is the indicated type exactly. | |
bool | is_of_type (TypeHandle handle) const |
Returns true if the current object is or derives from the indicated type. | |
void | mark_loaded (const GeomVertexArrayDataHandle *reader) |
Should be called after the VertexBufferContext has been loaded into graphics memory, this updates the internal flags for changed_size() and modified(). | |
void | mark_unloaded () |
Should be called after the buffer has been forced out of graphics memory. | |
void | mark_used_lru () const |
To be called when the page is used; this will move it to the tail of the AdaptiveLru queue it is already on. | |
void | mark_used_lru (AdaptiveLru *lru) |
To be called when the page is used; this will move it to the tail of the specified AdaptiveLru queue. | |
void | operator delete (void *ptr) |
void | operator delete (void *ptr, void *) |
void | operator delete[] (void *, void *) |
void | operator delete[] (void *ptr) |
void * | operator new (size_t size, void *ptr) |
void * | operator new (size_t size) |
void * | operator new[] (size_t size, void *ptr) |
void * | operator new[] (size_t size) |
virtual void | output (ostream &out) const |
void | set_active (bool flag) |
Changes the active flag associated with this object. | |
void | set_lru_size (size_t lru_size) |
Specifies the size of this page, presumably in bytes, although any unit is possible. | |
void | set_resident (bool flag) |
Changes the resident flag associated with this object. | |
void | update_data_size_bytes (size_t new_data_size_bytes) |
Should be called (usually by a derived class) when the on-card size of this object has changed. | |
void | update_modified (UpdateSeq new_modified) |
Should be called (usually by a derived class) when the modified counter for this object has changed. | |
bool | was_modified (const GeomVertexArrayDataHandle *reader) const |
Returns true if the data has been modified since the last time mark_loaded() was called. | |
virtual void | write (ostream &out, int indent_level) const |
Static Public Member Functions | |
static TypeHandle | get_class_type () |
static void | init_type () |
This function is declared non-inline to work around a compiler bug in g++ 2.96. | |
Protected Member Functions | |
void | insert_after (LinkedListNode *node) |
Adds a LinkedListNode record after the indicated node in the doubly-linked list. | |
void | insert_after (LinkedListNode *node) |
Adds a LinkedListNode record after the indicated node in the doubly-linked list. | |
void | insert_before (LinkedListNode *node) |
Adds a LinkedListNode record before the indicated node in the doubly-linked list. | |
void | insert_before (LinkedListNode *node) |
Adds a LinkedListNode record before the indicated node in the doubly-linked list. | |
bool | is_on_list () const |
Returns true if the node is member of any list, false if it has been removed or never added. | |
bool | is_on_list () const |
Returns true if the node is member of any list, false if it has been removed or never added. | |
void | remove_from_list () |
Removes a LinkedListNode record from the doubly-linked list. | |
void | remove_from_list () |
Removes a LinkedListNode record from the doubly-linked list. | |
void | take_list_from (LinkedListNode *other_root) |
Given that this LinkedListNode represents the root of a list, and the other pointer represents the root of a different list, move all of the nodes (except the root itself) from other_root onto this list. | |
void | take_list_from (LinkedListNode *other_root) |
Given that this LinkedListNode represents the root of a list, and the other pointer represents the root of a different list, move all of the nodes (except the root itself) from other_root onto this list. | |
Protected Attributes | |
LinkedListNode * | _next |
LinkedListNode * | _next |
LinkedListNode * | _prev |
LinkedListNode * | _prev |
Friends | |
class | PreparedGraphicsObjects |
This is a special class object that holds all the information returned by a particular GSG to indicate the vertex data array's internal context identifier.
This allows the GSG to cache the vertex data array in whatever way makes sense. For instance, DirectX can allocate a vertex buffer for the array. OpenGL can create a buffer object.
Definition at line 36 of file vertexBufferContext.h.
TypedObject * TypedObject::as_typed_object | ( | ) | [inline, inherited] |
Returns the object, upcast (if necessary) to a TypedObject pointer.
Definition at line 99 of file typedObject.I.
const TypedObject * TypedObject::as_typed_object | ( | ) | const [inline, inherited] |
Returns the object, upcast (if necessary) to a TypedObject pointer.
Definition at line 110 of file typedObject.I.
bool VertexBufferContext::changed_size | ( | const GeomVertexArrayDataHandle * | reader | ) | const [inline] |
Returns true if the data has changed size since the last time mark_loaded() was called.
Definition at line 47 of file vertexBufferContext.I.
References BufferContext::get_data_size_bytes().
Referenced by DXGraphicsStateGuardian9::apply_vertex_buffer(), and DXGraphicsStateGuardian8::apply_vertex_buffer().
bool VertexBufferContext::changed_usage_hint | ( | const GeomVertexArrayDataHandle * | reader | ) | const [inline] |
Returns true if the data has changed its usage hint since the last time mark_loaded() was called.
Definition at line 59 of file vertexBufferContext.I.
void AdaptiveLruPage::dequeue_lru | ( | ) | [inline, inherited] |
Removes the page from its AdaptiveLru.
Definition at line 171 of file adaptiveLru.I.
References AdaptiveLruPage::enqueue_lru().
Referenced by TinyTextureContext::evict_lru(), AdaptiveLruPage::evict_lru(), DXVertexBufferContext9::evict_lru(), DXTextureContext9::evict_lru(), DXIndexBufferContext9::evict_lru(), DXVertexBufferContext8::evict_lru(), DXTextureContext8::evict_lru(), DXIndexBufferContext8::evict_lru(), and TinyGraphicsStateGuardian::release_texture().
void AdaptiveLruPage::enqueue_lru | ( | AdaptiveLru * | lru | ) | [inherited] |
Adds the page to the LRU for the first time, or marks it recently-accessed if it has already been added.
If lru is NULL, it means to remove this page from its LRU.
Definition at line 182 of file adaptiveLru.cxx.
References AdaptiveLru::do_access_page(), AdaptiveLru::do_add_page(), and AdaptiveLru::do_remove_page().
Referenced by DXGraphicsStateGuardian9::apply_index_buffer(), DXGraphicsStateGuardian8::apply_index_buffer(), DXGraphicsStateGuardian9::apply_vertex_buffer(), DXGraphicsStateGuardian8::apply_vertex_buffer(), AdaptiveLruPage::dequeue_lru(), TinyGraphicsStateGuardian::framebuffer_copy_to_texture(), DXGraphicsStateGuardian9::framebuffer_copy_to_texture(), DXGraphicsStateGuardian8::framebuffer_copy_to_texture(), AdaptiveLruPage::mark_used_lru(), TinyGraphicsStateGuardian::update_texture(), DXGraphicsStateGuardian9::update_texture(), and DXGraphicsStateGuardian8::update_texture().
void AdaptiveLruPage::evict_lru | ( | ) | [virtual, inherited] |
Evicts the page from the LRU.
Called internally when the LRU determines that it is full. May also be called externally when necessary to explicitly evict the page.
It is legal for this method to either evict the page as requested, do nothing (in which case the eviction will be requested again at the next epoch), or requeue itself on the tail of the queue (in which case the eviction will be requested again much later).
Reimplemented in DXIndexBufferContext8, DXTextureContext8, DXVertexBufferContext8, DXIndexBufferContext9, DXTextureContext9, DXVertexBufferContext9, and TinyTextureContext.
Definition at line 557 of file adaptiveLru.cxx.
References AdaptiveLruPage::dequeue_lru().
Referenced by AdaptiveLru::do_evict_to().
bool BufferContext::get_active | ( | ) | const [inline, inherited] |
Returns the active flag associated with this object.
An object is considered "active" if it was rendered in the current frame.
Definition at line 49 of file bufferContext.I.
Referenced by Texture::get_active().
GeomVertexArrayData * VertexBufferContext::get_data | ( | ) | const [inline] |
Returns the pointer to the client-side array data object.
Definition at line 36 of file vertexBufferContext.I.
Referenced by DXVertexBufferContext9::create_vbuffer(), DXVertexBufferContext8::create_vbuffer(), DXVertexBufferContext9::upload_data(), and DXVertexBufferContext8::upload_data().
size_t BufferContext::get_data_size_bytes | ( | ) | const [inline, inherited] |
Returns the number of bytes previously reported for the data object.
This is used to track changes in the data object's allocated size; if it changes from this, we need to create a new buffer. This is also used to track memory utilization in PStats.
Definition at line 26 of file bufferContext.I.
Referenced by changed_size(), IndexBufferContext::changed_size(), and Texture::get_data_size_bytes().
AdaptiveLru * AdaptiveLruPage::get_lru | ( | ) | const [inline, inherited] |
Returns the LRU that manages this page, or NULL if it is not currently managed by any LRU.
Definition at line 161 of file adaptiveLru.I.
size_t AdaptiveLruPage::get_lru_size | ( | ) | const [inline, inherited] |
Returns the size of this page as reported to the LRU, presumably in bytes.
Definition at line 209 of file adaptiveLru.I.
UpdateSeq BufferContext::get_modified | ( | ) | const [inline, inherited] |
Returns the UpdateSeq that was recorded the last time mark_loaded() was called.
Definition at line 37 of file bufferContext.I.
Referenced by IndexBufferContext::was_modified(), and was_modified().
BufferContext * BufferContext::get_next | ( | ) | const [inline, inherited] |
This can be used along with BufferContextChain::get_first() to walk through the list of objects stored on a tracker.
Definition at line 110 of file bufferContext.I.
unsigned int AdaptiveLruPage::get_num_frames | ( | ) | const [inherited] |
Returns the number of frames since the page was first added to its LRU.
Returns 0 if it does not have an LRU.
Definition at line 589 of file adaptiveLru.cxx.
unsigned int AdaptiveLruPage::get_num_inactive_frames | ( | ) | const [inherited] |
Returns the number of frames since the page was last accessed on its LRU.
Returns 0 if it does not have an LRU.
Definition at line 604 of file adaptiveLru.cxx.
bool BufferContext::get_resident | ( | ) | const [inline, inherited] |
Returns the resident flag associated with this object.
An object is considered "resident" if it appears to be resident in texture memory.
Definition at line 61 of file bufferContext.I.
Referenced by Texture::get_resident().
int TypedObject::get_type_index | ( | ) | const [inline, inherited] |
Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.
This is equivalent to get_type().get_index().
Definition at line 52 of file typedObject.I.
References TypeHandle::get_index().
static void VertexBufferContext::init_type | ( | ) | [inline, static] |
This function is declared non-inline to work around a compiler bug in g++ 2.96.
Making it inline seems to cause problems in the optimizer.
Reimplemented from BufferContext.
Reimplemented in DXVertexBufferContext8, and DXVertexBufferContext9.
Definition at line 67 of file vertexBufferContext.h.
References BufferContext::init_type().
Referenced by DXVertexBufferContext9::init_type(), and DXVertexBufferContext8::init_type().
void LinkedListNode::insert_after | ( | LinkedListNode * | node | ) | [inline, protected, inherited] |
Adds a LinkedListNode record after the indicated node in the doubly-linked list.
Definition at line 108 of file linkedListNode.I.
void LinkedListNode::insert_after | ( | LinkedListNode * | node | ) | [inline, protected, inherited] |
Adds a LinkedListNode record after the indicated node in the doubly-linked list.
Definition at line 108 of file linkedListNode.I.
void LinkedListNode::insert_before | ( | LinkedListNode * | node | ) | [inline, protected, inherited] |
Adds a LinkedListNode record before the indicated node in the doubly-linked list.
Definition at line 91 of file linkedListNode.I.
Referenced by SimpleAllocator::do_alloc(), AdaptiveLru::do_partial_lru_update(), and SimpleLruPage::enqueue_lru().
void LinkedListNode::insert_before | ( | LinkedListNode * | node | ) | [inline, protected, inherited] |
Adds a LinkedListNode record before the indicated node in the doubly-linked list.
Definition at line 91 of file linkedListNode.I.
Referenced by SimpleAllocator::do_alloc(), AdaptiveLru::do_partial_lru_update(), and SimpleLruPage::enqueue_lru().
bool TypedObject::is_exact_type | ( | TypeHandle | handle | ) | const [inline, inherited] |
Returns true if the current object is the indicated type exactly.
Definition at line 74 of file typedObject.I.
References TypeHandle::get_name().
Referenced by GraphicsStateGuardian::async_reload_texture(), PortalNode::combine_with(), PandaNode::combine_with(), GeomNode::combine_with(), CollisionNode::combine_with(), Character::combine_with(), PGItem::cull_callback(), FactoryParams::get_param_of_type(), CollisionHandlerPusher::handle_entries(), SceneGraphReducer::r_flatten(), ConnectionWriter::send(), FltToEggLevelState::set_transform(), and VirtualFileSystem::unmount().
bool TypedObject::is_of_type | ( | TypeHandle | handle | ) | const [inline, inherited] |
Returns true if the current object is or derives from the indicated type.
Definition at line 63 of file typedObject.I.
References TypeHandle::is_derived_from().
Referenced by EggSliderData::add_back_pointer(), EggJointData::add_back_pointer(), CIntervalManager::add_c_interval(), XFileNode::add_child(), CollisionTraverser::add_collider(), CollisionHandlerPhysical::add_collider(), EggXfmSAnim::add_data(), CharacterJointBundle::add_node(), NonlinearImager::add_screen(), EggGroupNode::apply_first_attribute(), EggGroupNode::apply_last_attribute(), DeferredNodeProperty::apply_to_node(), RecorderController::begin_playback(), NodePath::clear_clip_plane(), EggGroupNode::clear_connected_shading(), NodePath::clear_light(), EggBase::convert_paths(), NodePath::decode_from_bam_stream(), VrpnClient::disconnect_device(), PhysicsManager::do_physics(), GraphicsStateGuardian::fetch_specified_part(), EggRenderState::fill_state(), AnimBundleNode::find_anim_bundle(), EggGroupNode::find_coordsys_entry(), XFile::find_data_object(), Character::find_joint(), EggGroupNode::find_materials(), Character::find_slider(), XFile::find_template(), EggGroupNode::find_textures(), EggMaterialCollection::find_used_materials(), EggTextureCollection::find_used_textures(), EggGroupNode::force_filenames(), EggJointData::force_initial_rest_frame(), WindowFramework::get_aspect_2d(), EggPoolUniquifier::get_category(), EggGroupUniquifier::get_category(), EggGroupNode::get_connected_shading(), PandaFramework::get_mouse(), FactoryParams::get_param_of_type(), EggGroupNode::has_absolute_pathnames(), NodePath::has_clip_plane(), NodePath::has_clip_plane_off(), NodePath::has_light(), PandaFramework::hide_collision_solids(), x11GraphicsWindow::open_window(), eglGraphicsWindow::open_window(), EggNode::parse_egg(), CharacterMaker::part_to_node(), EggGroupNode::post_apply_flat_attribute(), EggBinner::prepare_node(), PortalClipper::prepare_portal(), NodePath::project_texture(), EggMatrixTablePointer::quantize_channels(), ParametricCurveCollection::r_add_curves(), SceneGraphReducer::r_collect_vertex_data(), EggGroupNode::r_load_externals(), EggGroupNode::rebuild_vertex_pools(), EggGroupNode::recompute_polygon_normals(), EggGroupNode::remove_invalid_primitives(), EggGroupNode::remove_unused_vertices(), EggLoader::reparent_decals(), EggMaterialCollection::replace_materials(), EggTextureCollection::replace_textures(), EggGroupNode::resolve_filenames(), EggGroupNode::reverse_vertex_ordering(), NodePath::set_clip_plane(), NodePath::set_clip_plane_off(), NodePath::set_light(), ProjectionScreen::set_projector(), NonlinearImager::set_source_camera(), EggXfmSAnim::set_value(), NonlinearImager::set_viewer_camera(), PandaFramework::show_collision_solids(), BamCache::store(), XFileToEggConverter::strip_nodes(), EggGroupNode::strip_normals(), DataGraphTraverser::traverse(), DataGraphTraverser::traverse_below(), EggGroupNode::triangulate_polygons(), EggGroupNode::unify_attributes(), EggNameUniquifier::uniquify(), NodeCullCallbackData::upcall(), PhysicsCollisionHandler::validate_target(), EggXfmSAnim::write(), EggGroup::write(), EggToDXFLayer::write_3d_face(), and EggToDXFLayer::write_entities().
bool LinkedListNode::is_on_list | ( | ) | const [inline, protected, inherited] |
Returns true if the node is member of any list, false if it has been removed or never added.
The head of a list generally appears to to always be a member of itself.
Definition at line 62 of file linkedListNode.I.
bool LinkedListNode::is_on_list | ( | ) | const [inline, protected, inherited] |
Returns true if the node is member of any list, false if it has been removed or never added.
The head of a list generally appears to to always be a member of itself.
Definition at line 62 of file linkedListNode.I.
void VertexBufferContext::mark_loaded | ( | const GeomVertexArrayDataHandle * | reader | ) | [inline] |
Should be called after the VertexBufferContext has been loaded into graphics memory, this updates the internal flags for changed_size() and modified().
Definition at line 96 of file vertexBufferContext.I.
References BufferContext::set_resident(), update_data_size_bytes(), and BufferContext::update_modified().
Referenced by DXGraphicsStateGuardian8::apply_vertex_buffer(), and DXGraphicsStateGuardian9::apply_vertex_buffer().
void VertexBufferContext::mark_unloaded | ( | ) | [inline] |
Should be called after the buffer has been forced out of graphics memory.
Definition at line 113 of file vertexBufferContext.I.
References UpdateSeq::old(), BufferContext::set_resident(), and BufferContext::update_modified().
Referenced by DXVertexBufferContext9::evict_lru(), and DXVertexBufferContext8::evict_lru().
void AdaptiveLruPage::mark_used_lru | ( | ) | const [inline, inherited] |
To be called when the page is used; this will move it to the tail of the AdaptiveLru queue it is already on.
This method is const because it's not technically modifying the contents of the page itself.
Definition at line 185 of file adaptiveLru.I.
Referenced by DXTextureContext8::evict_lru(), and DXTextureContext9::evict_lru().
void AdaptiveLruPage::mark_used_lru | ( | AdaptiveLru * | lru | ) | [inline, inherited] |
To be called when the page is used; this will move it to the tail of the specified AdaptiveLru queue.
Definition at line 198 of file adaptiveLru.I.
References AdaptiveLruPage::enqueue_lru().
void LinkedListNode::remove_from_list | ( | ) | [inline, protected, inherited] |
Removes a LinkedListNode record from the doubly-linked list.
Definition at line 73 of file linkedListNode.I.
Referenced by SimpleLruPage::dequeue_lru(), SimpleAllocatorBlock::do_free(), AdaptiveLru::do_partial_lru_update(), and SimpleLruPage::enqueue_lru().
void LinkedListNode::remove_from_list | ( | ) | [inline, protected, inherited] |
Removes a LinkedListNode record from the doubly-linked list.
Definition at line 73 of file linkedListNode.I.
Referenced by SimpleLruPage::dequeue_lru(), SimpleAllocatorBlock::do_free(), AdaptiveLru::do_partial_lru_update(), and SimpleLruPage::enqueue_lru().
void BufferContext::set_active | ( | bool | flag | ) | [inline, inherited] |
Changes the active flag associated with this object.
An object is considered "active" if it was rendered in the current frame.
Definition at line 73 of file bufferContext.I.
Referenced by DXGraphicsStateGuardian9::apply_index_buffer(), DXGraphicsStateGuardian8::apply_index_buffer(), DXGraphicsStateGuardian9::apply_texture(), DXGraphicsStateGuardian8::apply_texture(), DXGraphicsStateGuardian9::apply_vertex_buffer(), and DXGraphicsStateGuardian8::apply_vertex_buffer().
void AdaptiveLruPage::set_lru_size | ( | size_t | lru_size | ) | [inline, inherited] |
Specifies the size of this page, presumably in bytes, although any unit is possible.
Definition at line 220 of file adaptiveLru.I.
Referenced by update_data_size_bytes(), IndexBufferContext::update_data_size_bytes(), and TextureContext::update_data_size_bytes().
void BufferContext::set_resident | ( | bool | flag | ) | [inline, inherited] |
Changes the resident flag associated with this object.
An object is considered "resident" if it appears to be resident in texture memory.
Definition at line 93 of file bufferContext.I.
Referenced by mark_loaded(), TextureContext::mark_loaded(), IndexBufferContext::mark_loaded(), TextureContext::mark_simple_loaded(), mark_unloaded(), TextureContext::mark_unloaded(), and IndexBufferContext::mark_unloaded().
void LinkedListNode::take_list_from | ( | LinkedListNode * | other_root | ) | [inline, protected, inherited] |
Given that this LinkedListNode represents the root of a list, and the other pointer represents the root of a different list, move all of the nodes (except the root itself) from other_root onto this list.
Definition at line 127 of file linkedListNode.I.
Referenced by BufferContextChain::take_from().
void LinkedListNode::take_list_from | ( | LinkedListNode * | other_root | ) | [inline, protected, inherited] |
Given that this LinkedListNode represents the root of a list, and the other pointer represents the root of a different list, move all of the nodes (except the root itself) from other_root onto this list.
Definition at line 127 of file linkedListNode.I.
Referenced by BufferContextChain::take_from().
void VertexBufferContext::update_data_size_bytes | ( | size_t | new_data_size_bytes | ) | [inline] |
Should be called (usually by a derived class) when the on-card size of this object has changed.
Reimplemented from BufferContext.
Definition at line 83 of file vertexBufferContext.I.
References AdaptiveLruPage::set_lru_size().
Referenced by DXVertexBufferContext9::evict_lru(), DXVertexBufferContext8::evict_lru(), and mark_loaded().
void BufferContext::update_modified | ( | UpdateSeq | new_modified | ) | [inline, inherited] |
Should be called (usually by a derived class) when the modified counter for this object has changed.
Definition at line 139 of file bufferContext.I.
Referenced by mark_loaded(), TextureContext::mark_loaded(), IndexBufferContext::mark_loaded(), TextureContext::mark_simple_loaded(), mark_unloaded(), TextureContext::mark_unloaded(), and IndexBufferContext::mark_unloaded().
bool VertexBufferContext::was_modified | ( | const GeomVertexArrayDataHandle * | reader | ) | const [inline] |
Returns true if the data has been modified since the last time mark_loaded() was called.
Definition at line 71 of file vertexBufferContext.I.
References BufferContext::get_modified().
Referenced by DXGraphicsStateGuardian8::apply_vertex_buffer(), and DXGraphicsStateGuardian9::apply_vertex_buffer().