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/**************************************************************************
*
* Copyright 2012 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
**************************************************************************/
/*
* Representation of call sets.
*
* Grammar:
*
* set = '@' filename
* | range ( ',' ? range ) *
*
* range = interval ( '/' frequency )
*
* interval = '*'
* | number
* | start_number '-' end_number
*
* frequency = divisor
* | "frame"
* | "rendertarget" | "fbo"
* | "render | "draw"
*
*/
#pragma once
#include <limits>
#include <list>
#include "trace_model.hpp"
#include "trace_fast_callset.hpp"
namespace trace {
// Aliases for call flags
enum {
FREQUENCY_NONE = 0,
FREQUENCY_FRAME = CALL_FLAG_END_FRAME,
FREQUENCY_RENDERTARGET = CALL_FLAG_END_FRAME | CALL_FLAG_SWAP_RENDERTARGET,
FREQUENCY_RENDER = CALL_FLAG_RENDER,
FREQUENCY_ALL = 0xffffffff
};
// A linear range of calls
class CallRange
{
public:
CallNo start;
CallNo stop;
CallNo step;
CallFlags freq;
CallRange(CallNo callNo) :
start(callNo),
stop(callNo),
step(1),
freq(FREQUENCY_ALL)
{}
CallRange(CallNo _start, CallNo _stop, CallNo _step = 1, CallFlags _freq = FREQUENCY_ALL) :
start(_start),
stop(_stop),
step(_step),
freq(_freq)
{}
bool
contains(CallNo callNo, CallFlags callFlags) const {
return callNo >= start &&
callNo <= stop &&
((callNo - start) % step) == 0 &&
((callFlags & freq) ||
freq == FREQUENCY_ALL);
}
};
// A collection of call ranges
class CallSet
{
private:
CallRange limits;
bool firstmerge;
public:
FastCallSet fast_call_set;
// TODO: use binary tree to speed up lookups, (less important
// now that we are using FastCallSet for ranges without step
// or freq).
typedef std::list< CallRange > RangeList;
RangeList ranges;
CallSet(): limits(std::numeric_limits<CallNo>::min(), std::numeric_limits<CallNo>::max()), firstmerge(true) {}
CallSet(CallFlags freq);
void
merge(const char *str);
// Not empty set
inline bool
empty() const {
return fast_call_set.empty() && ranges.empty();
}
void
addRange(const CallRange & range) {
if (range.start <= range.stop &&
range.freq != FREQUENCY_NONE) {
if (empty()) {
limits.start = range.start;
limits.stop = range.stop;
} else {
if (range.start < limits.start)
limits.start = range.start;
if (range.stop > limits.stop)
limits.stop = range.stop;
}
/* Optimize by using fast_call_set whenever possible */
if (range.step == 1 && range.freq == FREQUENCY_ALL) {
fast_call_set.add(range.start, range.stop);
} else {
RangeList::iterator it = ranges.begin();
while (it != ranges.end() && it->start < range.start) {
++it;
}
ranges.insert(it, range);
}
}
}
inline bool
contains(CallNo callNo, CallFlags callFlags = FREQUENCY_ALL) const {
if (empty()) {
return false;
}
if (fast_call_set.contains(callNo))
return true;
RangeList::const_iterator it;
for (it = ranges.begin(); it != ranges.end() && it->start <= callNo; ++it) {
if (it->contains(callNo, callFlags)) {
return true;
}
}
return false;
}
inline bool
contains(const trace::Call &call) const {
return contains(call.no, call.flags);
}
CallNo getFirst() const {
return limits.start;
}
CallNo getLast() const {
return limits.stop;
}
};
CallSet parse(const char *string);
} /* namespace trace */
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