54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file glLatencyQueryContext_src.h
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* @author rdb
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* @date 2014-09-24
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*/
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class GraphicsStateGuardian;
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#ifndef OPENGLES // Timer queries not supported by OpenGL ES.
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/**
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* This is a special variant of GLTimerQueryContext that measures the command
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* latency, ie. the time it takes for the GPU to actually get to the commands
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* we are issuing right now.
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*/
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class EXPCL_GL CLP(LatencyQueryContext) : public CLP(TimerQueryContext) {
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public:
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CLP(LatencyQueryContext)(CLP(GraphicsStateGuardian) *glgsg, int pstats_index);
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ALLOC_DELETED_CHAIN(CLP(LatencyQueryContext));
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virtual double get_timestamp() const;
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GLint64 _timestamp;
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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CLP(TimerQueryContext)::init_type();
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register_type(_type_handle, CLASSPREFIX_QUOTED "LatencyQueryContext",
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CLP(TimerQueryContext)::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "glLatencyQueryContext_src.I"
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#endif // OPENGLES
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