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/**************************************************************************
*
* Copyright 2014 LunarG, 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.
*
**************************************************************************/
#include "trace_parser.hpp"
namespace trace {
// Decorator for parser which loops
class LastFrameLoopParser : public AbstractParser {
public:
LastFrameLoopParser(AbstractParser *p, int c) {
parser = p;
loopCount = c;
}
~LastFrameLoopParser() {
delete parser;
}
Call *parse_call(void) override;
// Delegate to Parser
void getBookmark(ParseBookmark &bookmark) override { parser->getBookmark(bookmark); }
void setBookmark(const ParseBookmark &bookmark) override { parser->setBookmark(bookmark); }
bool open(const char *filename) override;
void close(void) override { parser->close(); }
unsigned long long getVersion(void) const override { return parser->getVersion(); }
const Properties & getProperties(void) const override { return parser->getProperties(); }
private:
int loopCount;
AbstractParser *parser;
ParseBookmark frameStart;
ParseBookmark lastFrameStart;
};
bool
LastFrameLoopParser::open(const char *filename)
{
bool ret = parser->open(filename);
if (ret) {
/* If the user wants to loop we need to get a bookmark target. We
* usually get this after replaying a call that ends a frame, but
* for a trace that has only one frame we need to get it at the
* beginning. */
parser->getBookmark(frameStart);
lastFrameStart = frameStart;
}
return ret;
}
Call *
LastFrameLoopParser::parse_call(void)
{
trace::Call *call;
call = parser->parse_call();
/* Restart last frame when looping is requested. */
if (call) {
lastFrameStart = frameStart;
if (call->flags & trace::CALL_FLAG_END_FRAME) {
parser->getBookmark(frameStart);
}
} else {
if (loopCount) {
frameStart = lastFrameStart;
parser->setBookmark(frameStart);
call = parser->parse_call();
if (loopCount > 0) {
--loopCount;
}
}
}
return call;
}
AbstractParser *
lastFrameLoopParser(AbstractParser *parser, int loopCount)
{
return new LastFrameLoopParser(parser, loopCount);
}
} /* namespace trace */
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