furnace/src/gui/sampleUtil.h

36 lines
1.4 KiB
C

/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2023 tildearrow and contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#define SAMPLE_OP_BEGIN \
unsigned int start=0; \
unsigned int end=sample->samples; \
if (sampleSelStart<0) sampleSelStart=0; \
if (sampleSelStart>(int)sample->samples) sampleSelStart=sample->samples; \
if (sampleSelEnd<0) sampleSelEnd=0; \
if (sampleSelEnd>(int)sample->samples) sampleSelEnd=sample->samples; \
if (sampleSelStart!=-1 && sampleSelEnd!=-1 && sampleSelStart!=sampleSelEnd) { \
start=sampleSelStart; \
end=sampleSelEnd; \
if (start>end) { \
start^=end; \
end^=start; \
start^=end; \
} \
}