From 847962910f0bff071f3bf07c9abb87764fb6cac3 Mon Sep 17 00:00:00 2001 From: claude-bot Date: Mon, 13 Jul 2026 12:40:03 +0000 Subject: Import aap/librw @ master Snapshot for re3/reVC vendoring, per @lzcnt. Source: https://github.com/aap/librw (master). --- src/anim.cpp | 293 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 293 insertions(+) create mode 100644 src/anim.cpp (limited to 'src/anim.cpp') diff --git a/src/anim.cpp b/src/anim.cpp new file mode 100644 index 0000000..2003f1b --- /dev/null +++ b/src/anim.cpp @@ -0,0 +1,293 @@ +#include +#include +#include +#include + +#include "rwbase.h" +#include "rwerror.h" +#include "rwplg.h" +#include "rwpipeline.h" +#include "rwobjects.h" +#include "rwengine.h" +#include "rwanim.h" +#include "rwplugins.h" + +#define PLUGIN_ID ID_ANIMANIMATION + +namespace rw { + +// +// AnimInterpolatorInfo +// + +#define MAXINTERPINFO 10 + +static AnimInterpolatorInfo *interpInfoList[MAXINTERPINFO]; + +void +AnimInterpolatorInfo::registerInterp(AnimInterpolatorInfo *interpInfo) +{ + for(int32 i = 0; i < MAXINTERPINFO; i++) + if(interpInfoList[i] == nil){ + interpInfoList[i] = interpInfo; + return; + } + assert(0 && "no room for interpolatorInfo"); +} + +void +AnimInterpolatorInfo::unregisterInterp(AnimInterpolatorInfo *interpInfo) +{ + for(int32 i = 0; i < MAXINTERPINFO; i++) + if(interpInfoList[i] == interpInfo){ + rwFree(interpInfoList[i]); + interpInfoList[i] = nil; + return; + } +} + +AnimInterpolatorInfo* +AnimInterpolatorInfo::find(int32 id) +{ + for(int32 i = 0; i < MAXINTERPINFO; i++){ + if(interpInfoList[i] && interpInfoList[i]->id == id) + return interpInfoList[i]; + } + return nil; +} + +// +// Animation +// + +Animation* +Animation::create(AnimInterpolatorInfo *interpInfo, int32 numFrames, + int32 flags, float duration) +{ + int32 sz = sizeof(Animation) + + numFrames*interpInfo->animKeyFrameSize + + interpInfo->customDataSize; + uint8 *data = (uint8*)rwMalloc(sz, MEMDUR_EVENT | ID_ANIMANIMATION); + if(data == nil){ + RWERROR((ERR_ALLOC, sz)); + return nil; + } + Animation *anim = (Animation*)data; + data += sizeof(Animation); + anim->interpInfo = interpInfo; + anim->numFrames = numFrames; + anim->flags = flags; + anim->duration = duration; + anim->keyframes = data; + data += anim->numFrames*interpInfo->animKeyFrameSize; + anim->customData = data; + return anim; +} + +void +Animation::destroy(void) +{ + rwFree(this); +} + +int32 +Animation::getNumNodes(void) +{ + int32 sz = this->interpInfo->animKeyFrameSize; + KeyFrameHeader *first = (KeyFrameHeader*)this->keyframes; + int32 n = 0; + for(KeyFrameHeader *f = first; f->prev != first; f = f->next(sz)) + n++; + return n; +} + +Animation* +Animation::streamRead(Stream *stream) +{ + Animation *anim; + if(stream->readI32() != 0x100) + return nil; + int32 typeID = stream->readI32(); + AnimInterpolatorInfo *interpInfo = AnimInterpolatorInfo::find(typeID); + int32 numFrames = stream->readI32(); + int32 flags = stream->readI32(); + float duration = stream->readF32(); + anim = Animation::create(interpInfo, numFrames, flags, duration); + interpInfo->streamRead(stream, anim); + return anim; +} + +Animation* +Animation::streamReadLegacy(Stream *stream) +{ + Animation *anim; + AnimInterpolatorInfo *interpInfo = AnimInterpolatorInfo::find(1); + int32 numFrames = stream->readI32(); + int32 flags = stream->readI32(); + float duration = stream->readF32(); + anim = Animation::create(interpInfo, numFrames, flags, duration); + HAnimKeyFrame *frames = (HAnimKeyFrame*)anim->keyframes; + for(int32 i = 0; i < anim->numFrames; i++){ + stream->read32(&frames[i].q, 4*4); + frames[i].q = conj(frames[i].q); + stream->read32(&frames[i].t, 3*4); + frames[i].time = stream->readF32(); + int32 prev = stream->readI32()/0x24; + frames[i].prev = &frames[prev]; + } + return anim; +} + +bool +Animation::streamWrite(Stream *stream) +{ + writeChunkHeader(stream, ID_ANIMANIMATION, this->streamGetSize()); + stream->writeI32(0x100); + stream->writeI32(this->interpInfo->id); + stream->writeI32(this->numFrames); + stream->writeI32(this->flags); + stream->writeF32(this->duration); + this->interpInfo->streamWrite(stream, this); + return true; +} + +bool +Animation::streamWriteLegacy(Stream *stream) +{ + stream->writeI32(this->numFrames); + stream->writeI32(this->flags); + stream->writeF32(this->duration); + assert(interpInfo->id == 1); + HAnimKeyFrame *frames = (HAnimKeyFrame*)this->keyframes; + for(int32 i = 0; i < this->numFrames; i++){ + frames[i].q = conj(frames[i].q); + stream->write32(&frames[i].q, 4*4); + frames[i].q = conj(frames[i].q); + stream->write32(&frames[i].t, 3*4); + stream->writeF32(frames[i].time); + stream->writeI32((frames[i].prev - frames)*0x24); + } + return true; +} + +uint32 +Animation::streamGetSize(void) +{ + uint32 size = 4 + 4 + 4 + 4 + 4; + size += this->interpInfo->streamGetSize(this); + return size; +} + +// +// AnimInterpolator +// + +AnimInterpolator* +AnimInterpolator::create(int32 numNodes, int32 maxFrameSize) +{ + AnimInterpolator *interp; + int32 sz; + int32 realsz = maxFrameSize; + + // Add some space for pointers and padding, hopefully this will be + // enough. Don't change maxFrameSize not to mess up streaming. + if(sizeof(void*) > 4) + realsz += 16; + sz = sizeof(AnimInterpolator) + numNodes*realsz; + interp = (AnimInterpolator*)rwMalloc(sz, MEMDUR_EVENT | ID_ANIMANIMATION); + if(interp == nil){ + RWERROR((ERR_ALLOC, sz)); + return nil; + } + interp->currentAnim = nil; + interp->currentTime = 0.0f; + interp->nextFrame = nil; + interp->maxInterpKeyFrameSize = maxFrameSize; + interp->currentInterpKeyFrameSize = maxFrameSize; + interp->currentAnimKeyFrameSize = -1; + interp->numNodes = numNodes;; + + return interp; +} + +void +AnimInterpolator::destroy(void) +{ + rwFree(this); +} + +bool32 +AnimInterpolator::setCurrentAnim(Animation *anim) +{ + int32 i; + AnimInterpolatorInfo *interpInfo = anim->interpInfo; + this->currentAnim = anim; + this->currentTime = 0.0f; + int32 maxkf = this->maxInterpKeyFrameSize; + if(sizeof(void*) > 4) // see above in create() + maxkf += 16; + if(interpInfo->interpKeyFrameSize > maxkf){ + RWERROR((ERR_GENERAL, "interpolation frame too big")); + return 0; + } + this->currentInterpKeyFrameSize = interpInfo->interpKeyFrameSize; + this->currentAnimKeyFrameSize = interpInfo->animKeyFrameSize; + this->applyCB = interpInfo->applyCB; + this->blendCB = interpInfo->blendCB; + this->interpCB = interpInfo->interpCB; + this->addCB = interpInfo->addCB; + for(i = 0; i < numNodes; i++){ + InterpFrameHeader *intf; + KeyFrameHeader *kf1, *kf2; + intf = this->getInterpFrame(i); + kf1 = this->getAnimFrame(i); + kf2 = this->getAnimFrame(i+numNodes); + intf->keyFrame1 = kf1; + intf->keyFrame2 = kf2; + // TODO: perhaps just implement all interpolator infos? + if(this->interpCB) + this->interpCB(intf, kf1, kf2, 0.0f, anim->customData); + } + this->nextFrame = this->getAnimFrame(numNodes*2); + return 1; +} + +void +AnimInterpolator::addTime(float32 t) +{ + int32 i; + if(t <= 0.0f) + return; + this->currentTime += t; + // reset animation + if(this->currentTime > this->currentAnim->duration){ + this->setCurrentAnim(this->currentAnim); + return; + } + KeyFrameHeader *last = this->getAnimFrame(this->currentAnim->numFrames); + KeyFrameHeader *next = (KeyFrameHeader*)this->nextFrame; + InterpFrameHeader *ifrm = nil; + while(next < last && next->prev->time <= this->currentTime){ + // find next interpolation frame to expire + for(i = 0; i < this->numNodes; i++){ + ifrm = this->getInterpFrame(i); + if(ifrm->keyFrame2 == next->prev) + break; + } + // advance interpolation frame + ifrm->keyFrame1 = ifrm->keyFrame2; + ifrm->keyFrame2 = next; + // ... and next frame + next = (KeyFrameHeader*)((uint8*)this->nextFrame + + currentAnimKeyFrameSize); + this->nextFrame = next; + } + for(i = 0; i < this->numNodes; i++){ + ifrm = this->getInterpFrame(i); + this->interpCB(ifrm, ifrm->keyFrame1, ifrm->keyFrame2, + this->currentTime, + this->currentAnim->customData); + } +} + +} -- cgit v1.2.3