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74 lines
2.6 KiB
C
74 lines
2.6 KiB
C
/*
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* Copyright © 2006 Mozilla Corporation
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* Copyright © 2006 Red Hat, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* the authors not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. The authors make no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Authors: Vladimir Vukicevic <vladimir@pobox.com>
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* Carl Worth <cworth@cworth.org>
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*/
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#ifndef _CAIRO_PERF_H_
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#define _CAIRO_PERF_H_
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#include "cairo-boilerplate.h"
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#include "cairo-perf-timer.h"
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extern double cairo_perf_duration;
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extern int cairo_perf_alarm_expired;
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#if CAIRO_HAS_WIN32_SURFACE
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/* Windows needs a SleepEx to put the thread into an alertable state,
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* such that the timer expiration callback can fire. I can't figure
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* out how to do an async timer. On a quiet system, this doesn't
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* seem to significantly affect the results.
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*/
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# define CAIRO_PERF_LOOP_INIT(timervar) do { \
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timervar.count = 0; \
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timer_start (&(timervar)); \
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set_alarm (cairo_perf_duration); \
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while (! cairo_perf_alarm_expired) { \
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SleepEx(0, TRUE)
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#else
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# define CAIRO_PERF_LOOP_INIT(timervar) do { \
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timervar.count = 0; \
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timer_start (&(timervar)); \
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set_alarm (cairo_perf_duration); \
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while (! cairo_perf_alarm_expired) {
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#endif
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#define CAIRO_PERF_LOOP_FINI(timervar) \
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(timervar).count++; \
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} \
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timer_stop (&(timervar)); \
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} while (0)
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#define CAIRO_PERF_LOOP_RATE(timervar) \
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((timervar).count) / timer_elapsed (&(timervar))
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typedef double (*cairo_perf_func_t) (cairo_t *cr, int width, int height);
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#define CAIRO_PERF_DECL(func) double func (cairo_t *cr, int width, int height)
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CAIRO_PERF_DECL (paint);
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CAIRO_PERF_DECL (paint_alpha);
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#endif
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