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https://github.com/ZDoom/raze-gles.git
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27c313d74e
Mainly to get it out of the way. This needs to be redone later in a more serialization-friendly way.
99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
//-------------------------------------------------------------------------
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/*
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Copyright (C) 2016 EDuke32 developers and contributors
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This file is part of EDuke32.
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EDuke32 is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License version 2
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as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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//-------------------------------------------------------------------------
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#include "ns.h" // Must come before everything else!
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#include "global.h"
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BEGIN_DUKE_NS
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// No need to revert this to the original state - to be robust this needs to be redone entirely, so this code will disappear anyway.
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#define MAXINTERPOLATIONS MAXSPRITES
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int32_t g_interpolationCnt;
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int32_t g_interpolationLock;
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int32_t oldipos[MAXINTERPOLATIONS];
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int32_t *curipos[MAXINTERPOLATIONS];
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int32_t bakipos[MAXINTERPOLATIONS];
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int G_SetInterpolation(int32_t *const posptr)
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{
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if (g_interpolationCnt >= MAXINTERPOLATIONS)
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return 1;
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for (bssize_t i = 0; i < g_interpolationCnt; ++i)
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if (curipos[i] == posptr)
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return 0;
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curipos[g_interpolationCnt] = posptr;
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oldipos[g_interpolationCnt] = *posptr;
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g_interpolationCnt++;
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return 0;
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}
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void G_StopInterpolation(const int32_t * const posptr)
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{
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for (bssize_t i = 0; i < g_interpolationCnt; ++i)
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if (curipos[i] == posptr)
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{
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g_interpolationCnt--;
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oldipos[i] = oldipos[g_interpolationCnt];
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bakipos[i] = bakipos[g_interpolationCnt];
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curipos[i] = curipos[g_interpolationCnt];
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}
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}
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void G_DoInterpolations(int smoothRatio)
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{
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if (g_interpolationLock++)
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return;
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int32_t ndelta = 0;
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for (bssize_t i = 0, j = 0; i < g_interpolationCnt; ++i)
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{
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int32_t const odelta = ndelta;
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bakipos[i] = *curipos[i];
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ndelta = (*curipos[i]) - oldipos[i];
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if (odelta != ndelta)
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j = mulscale16(ndelta, smoothRatio);
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*curipos[i] = oldipos[i] + j;
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}
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}
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void G_UpdateInterpolations(void) //Stick at beginning of G_DoMoveThings
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{
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for (bssize_t i=g_interpolationCnt-1; i>=0; i--) oldipos[i] = *curipos[i];
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}
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void G_RestoreInterpolations(void) //Stick at end of drawscreen
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{
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int32_t i=g_interpolationCnt-1;
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if (--g_interpolationLock)
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return;
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for (; i>=0; i--) *curipos[i] = bakipos[i];
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}
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END_DUKE_NS
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