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[2798] | 1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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[983] | 2 | /* |
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| 3 | * ---------------------------------------------------------------------- |
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| 4 | * PerfQuery.cpp: performance query class |
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| 5 | * |
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| 6 | * ====================================================================== |
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| 7 | * AUTHOR: Wei Qiao <qiaow@purdue.edu> |
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| 8 | * Purdue Rendering and Perceptualization Lab (PURPL) |
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| 9 | * |
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[3502] | 10 | * Copyright (c) 2004-2013 HUBzero Foundation, LLC |
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[983] | 11 | * |
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| 12 | * See the file "license.terms" for information on usage and |
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| 13 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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| 14 | * ====================================================================== |
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| 15 | */ |
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[2877] | 16 | #include <assert.h> |
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[983] | 17 | |
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| 18 | #include "PerfQuery.h" |
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| 19 | |
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[4889] | 20 | using namespace nv; |
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| 21 | |
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[2877] | 22 | PerfQuery::PerfQuery() |
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| 23 | { |
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| 24 | glGenQueriesARB(1, &id); |
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| 25 | pixel = 0; |
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[983] | 26 | } |
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| 27 | |
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[2877] | 28 | PerfQuery::~PerfQuery() |
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| 29 | { |
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| 30 | glDeleteQueriesARB(1, &id); |
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[983] | 31 | } |
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| 32 | |
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| 33 | //There can only be one active query at any given moment |
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[2877] | 34 | void PerfQuery::enable() |
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| 35 | { |
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| 36 | glBeginQueryARB(GL_SAMPLES_PASSED_ARB, id); |
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[983] | 37 | } |
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| 38 | |
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[2877] | 39 | void PerfQuery::disable() |
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| 40 | { |
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| 41 | glEndQueryARB(GL_SAMPLES_PASSED_ARB); |
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[983] | 42 | |
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[2877] | 43 | GLuint count; |
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| 44 | glGetQueryObjectuivARB(id, GL_QUERY_RESULT_ARB, &count); |
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[983] | 45 | |
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[2877] | 46 | //accumulate pixel count count |
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| 47 | pixel += count; |
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[983] | 48 | } |
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