mirror of
https://git.code.sf.net/p/quake/quakeforge
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c0517b1d97
gl, sw and sw32 use blend palettes, so share the code. This also abandons the optimization for transforming verts in sw (had all sorts of problems anyway). sw still doesn't work, though.
123 lines
3.3 KiB
C
123 lines
3.3 KiB
C
/*
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r_iqm.c
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Shared IQM rendering support
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Copyright (C) 2012 Bill Currie <bill@taniwha.org>
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Author: Bill Currie <bill@taniwha.org>
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Date: 2012/5/11
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdlib.h>
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#include "QF/cvar.h"
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#include "QF/render.h"
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#include "QF/skin.h"
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#include "QF/sys.h"
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#include "r_internal.h"
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float
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R_IQMGetLerpedFrames (entity_t *ent, iqm_t *iqm)
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{
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int frame = ent->frame;
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float time, fullinterval;
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iqmanim *anim;
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if (frame >= iqm->num_anims || frame < 0) {
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Sys_MaskPrintf (SYS_DEV, "R_IQMGetLerpedFrames: no such frame %d\n",
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frame);
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frame = 0;
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}
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anim = &iqm->anims[frame];
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fullinterval = anim->num_frames / anim->framerate;
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time = vr_data.realtime + currententity->syncbase;
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time -= ((int) (time / fullinterval)) * fullinterval;
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frame = (int) (time * anim->framerate) + anim->first_frame;
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return R_EntityBlend (ent, frame, anim->framerate);
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}
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iqmframe_t *
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R_IQMBlendFrames (const iqm_t *iqm, int frame1, int frame2, float blend,
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int extra)
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{
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iqmframe_t *frame;
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int i;
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frame = Hunk_TempAlloc (iqm->num_joints * sizeof (iqmframe_t) + extra);
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#if 0
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for (i = 0; i < iqm->num_joints; i++) {
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iqmframe_t *f1 = &iqm->frames[frame1][i];
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iqmframe_t *f2 = &iqm->frames[frame2][i];
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DualQuatBlend (f1->rt, f2->rt, blend, frame[i].rt);
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QuatBlend (f1->shear, f2->shear, blend, frame[i].shear);
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QuatBlend (f1->scale, f2->scale, blend, frame[i].scale);
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}
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#else
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for (i = 0; i < iqm->num_joints; i++) {
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iqmframe_t *f1 = &iqm->frames[frame1][i];
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iqmframe_t *f2 = &iqm->frames[frame2][i];
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iqmjoint *j = &iqm->joints[i];
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Mat4Blend ((float *) f1, (float *) f2, blend, (float*)&frame[i]);
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if (j->parent >= 0)
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Mat4Mult ((float*)&frame[j->parent],
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(float*)&frame[i], (float*)&frame[i]);
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}
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#endif
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return frame;
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}
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iqmframe_t *
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R_IQMBlendPalette (const iqm_t *iqm, int frame1, int frame2, float blend,
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int extra, iqmblend_t *blend_palette, int palette_size)
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{
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iqmframe_t *frame;
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int i, j;
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extra += (palette_size - iqm->num_joints) * sizeof (iqmframe_t);
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frame = R_IQMBlendFrames (iqm, frame1, frame2, blend, extra);
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for (i = iqm->num_joints; i < palette_size; i++) {
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vec_t *mat = (vec_t *) &frame[i];
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iqmblend_t *blend = &blend_palette[i];
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vec_t *f;
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f = (vec_t *) &frame[blend->indices[0]];
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Mat4Scale (f, blend->weights[0] / 255.0, mat);
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for (j = 1; j < 4; j++) {
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if (!blend->weights[j])
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break;
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f = (vec_t *) &frame[blend->indices[j]];
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Mat4MultAdd (mat, blend->weights[j] / 255.0, f, mat);
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}
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}
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return frame;
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}
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