Public Member Functions | Static Public Member Functions | Public Attributes

DXOcclusionQueryContext9 Class Reference

Inheritance diagram for DXOcclusionQueryContext9:
OcclusionQueryContext QueryContext TypedReferenceCount TypedObject ReferenceCount MemoryBase MemoryBase

List of all members.

Public Member Functions

 DXOcclusionQueryContext9 (IDirect3DQuery9 *query)
virtual TypeHandle force_init_type ()
virtual int get_num_fragments () const
 Returns the number of fragments (pixels) of the specified geometry that passed the depth test.
virtual TypeHandle get_type () const
virtual bool is_answer_ready () const
 Returns true if the query's answer is ready, false otherwise.
virtual void waiting_for_answer ()
 Requests the graphics engine to expedite the pending answer--the application is now waiting until the answer is ready.

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.

Public Attributes

IDirect3DQuery9 * _query

Detailed Description

Definition at line 28 of file dxOcclusionQueryContext9.h.

Member Function Documentation

int DXOcclusionQueryContext9::get_num_fragments ( ) const [virtual]

Returns the number of fragments (pixels) of the specified geometry that passed the depth test.

If is_answer_ready() did not return true, this function may block before it returns.

It is only valid to call this from the draw thread.

Implements OcclusionQueryContext.

Definition at line 75 of file dxOcclusionQueryContext9.cxx.

Referenced by waiting_for_answer().

static void DXOcclusionQueryContext9::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 OcclusionQueryContext.

Definition at line 44 of file dxOcclusionQueryContext9.h.

References OcclusionQueryContext::init_type().

bool DXOcclusionQueryContext9::is_answer_ready ( ) const [virtual]

Returns true if the query's answer is ready, false otherwise.

If this returns false, the application must continue to poll until it returns true.

It is only valid to call this from the draw thread.

Implements QueryContext.

Definition at line 44 of file dxOcclusionQueryContext9.cxx.

void DXOcclusionQueryContext9::waiting_for_answer ( ) [virtual]

Requests the graphics engine to expedite the pending answer--the application is now waiting until the answer is ready.

It is only valid to call this from the draw thread.

Reimplemented from QueryContext.

Definition at line 60 of file dxOcclusionQueryContext9.cxx.

References get_num_fragments().

The documentation for this class was generated from the following files: