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254 lines
7.2 KiB
254 lines
7.2 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(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. See the |
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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, see <http://www.gnu.org/licenses/>. |
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Additional permissions under GNU GPL version 3 section 7 |
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If you modify this Program, or any covered work, by linking or |
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK, |
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent |
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK |
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(or a modified version of those libraries), |
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA, |
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PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG |
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the |
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licensors of this Program grant you additional |
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permission to convey the resulting work. Corresponding Source for a |
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non-source form of such a combination shall include the source code for |
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the parts of OpenSSL and IJG JPEG Library used as well as that of the covered |
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work. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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#include "HeadSpin.h" |
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#include "plSpanInstance.h" |
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#include "hsGeometry3.h" |
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#include "hsStream.h" |
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void plSpanEncoding::Read(hsStream* s) |
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{ |
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fCode = s->ReadByte(); |
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fPosScale = s->ReadLEScalar(); |
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} |
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void plSpanEncoding::Write(hsStream* s) const |
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{ |
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s->WriteByte((uint8_t)fCode); |
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s->WriteLEScalar(fPosScale); |
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} |
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plSpanInstance::plSpanInstance() |
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: fPosDelta(nil), |
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fCol(nil) |
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{ |
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fL2W[0][1] = fL2W[0][2] = 0.f; |
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fL2W[1][0] = fL2W[1][2] = 0.f; |
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fL2W[2][0] = fL2W[2][1] = 0.f; |
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fL2W[0][0] = fL2W[1][1] = fL2W[2][2] = 1.f; |
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} |
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plSpanInstance::~plSpanInstance() |
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{ |
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DeAlloc(); |
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} |
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void plSpanInstance::DeAlloc() |
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{ |
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delete [] fPosDelta; |
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fPosDelta = nil; |
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delete [] fCol; |
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fCol = nil; |
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} |
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void plSpanInstance::Alloc(const plSpanEncoding& encoding, uint32_t numVerts) |
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{ |
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DeAlloc(); |
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uint32_t posStride = PosStrideFromEncoding(encoding); |
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if( posStride ) |
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fPosDelta = new uint8_t[numVerts * posStride]; |
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uint32_t colStride = ColStrideFromEncoding(encoding); |
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if( colStride ) |
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fCol = new uint8_t[numVerts * colStride]; |
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} |
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void plSpanInstance::Read(hsStream* stream, const plSpanEncoding& encoding, uint32_t numVerts) |
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{ |
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Alloc(encoding, numVerts); |
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stream->Read(12 * sizeof(float), fL2W[0]); |
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if( fPosDelta ) |
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{ |
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stream->Read(numVerts * PosStrideFromEncoding(encoding), fPosDelta); |
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} |
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if( fCol ) |
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{ |
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stream->Read(numVerts * ColStrideFromEncoding(encoding), fCol); |
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} |
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} |
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void plSpanInstance::Write(hsStream* stream, const plSpanEncoding& encoding, uint32_t numVerts) const |
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{ |
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stream->Write(12 * sizeof(float), fL2W[0]); |
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if( fPosDelta ) |
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{ |
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stream->Write(numVerts * PosStrideFromEncoding(encoding), fPosDelta); |
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} |
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if( fCol ) |
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{ |
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stream->Write(numVerts * ColStrideFromEncoding(encoding), fCol); |
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} |
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} |
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hsMatrix44 plSpanInstance::LocalToWorld() const |
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{ |
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hsMatrix44 retVal; |
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retVal.NotIdentity(); |
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int i; |
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for( i = 0; i < 3; i++ ) |
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{ |
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int j; |
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for( j = 0; j < 4; j++ ) |
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{ |
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retVal.fMap[i][j] = fL2W[i][j]; |
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} |
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} |
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retVal.fMap[3][0] = |
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retVal.fMap[3][1] = |
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retVal.fMap[3][2] = 0.f; |
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retVal.fMap[3][3] = 1.f; |
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return retVal; |
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} |
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hsMatrix44 plSpanInstance::WorldToLocal() const |
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{ |
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hsMatrix44 l2w = LocalToWorld(); |
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hsMatrix44 w2l; |
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l2w.GetInverse(&w2l); |
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return w2l; |
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} |
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void plSpanInstance::SetLocalToWorld(const hsMatrix44& l2w) |
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{ |
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int i; |
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for( i = 0; i < 3; i++ ) |
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{ |
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int j; |
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for( j = 0; j < 4; j++ ) |
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{ |
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fL2W[i][j] = l2w.fMap[i][j]; |
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} |
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} |
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} |
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void plSpanInstance::Encode(const plSpanEncoding& encoding, uint32_t numVerts, const hsVector3* delPos, const uint32_t* color) |
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{ |
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Alloc(encoding, numVerts); |
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hsAssert(!(encoding.fCode & plSpanEncoding::kPosMask) == !delPos, "Position encoding mismatch"); |
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hsAssert(!(encoding.fCode & plSpanEncoding::kColMask) == !color, "Color encoding mismatch"); |
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// Check that there's anything to encode. |
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if( !(fPosDelta || fCol) ) |
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return; |
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int8_t* pos888 = (int8_t*)fPosDelta; |
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int16_t* pos161616 = (int16_t*)fPosDelta; |
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uint32_t* pos101010 = (uint32_t*)fPosDelta; |
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uint8_t* col8 = (uint8_t*)fCol; |
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uint16_t* col16 = (uint16_t*)fCol; |
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uint32_t* col32 = (uint32_t*)fCol; |
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int i; |
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for( i = 0; i < numVerts; i++ ) |
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{ |
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switch(encoding.fCode & plSpanEncoding::kPosMask) |
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{ |
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case plSpanEncoding::kPos888: |
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pos888[0] = int8_t(delPos->fX / encoding.fPosScale); |
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pos888[1] = int8_t(delPos->fY / encoding.fPosScale); |
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pos888[2] = int8_t(delPos->fZ / encoding.fPosScale); |
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pos888 += 3; |
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delPos++; |
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break; |
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case plSpanEncoding::kPos161616: |
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pos161616[0] = int16_t(delPos->fX / encoding.fPosScale); |
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pos161616[1] = int16_t(delPos->fY / encoding.fPosScale); |
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pos161616[2] = int16_t(delPos->fZ / encoding.fPosScale); |
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pos161616 += 3; |
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delPos++; |
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break; |
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case plSpanEncoding::kPos101010: |
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*pos101010 = |
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((uint32_t(delPos->fX / encoding.fPosScale) & 0x3f) << 0) |
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| ((uint32_t(delPos->fY / encoding.fPosScale) & 0x3f) << 10) |
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| ((uint32_t(delPos->fZ / encoding.fPosScale) & 0x3f) << 20); |
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pos101010++; |
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delPos++; |
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break; |
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case plSpanEncoding::kPos008: |
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*pos888 = int8_t(delPos->fZ / encoding.fPosScale); |
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pos888++; |
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delPos++; |
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break; |
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case plSpanEncoding::kPosNone: |
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default: |
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break; |
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} |
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switch(encoding.fCode & plSpanEncoding::kColMask) |
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{ |
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case plSpanEncoding::kColA8: |
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*col8 = (uint8_t)((*color) >> 24); |
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col8++; |
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color++; |
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break; |
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case plSpanEncoding::kColI8: |
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*col8 = (uint8_t)((*color) & 0xff); |
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col8++; |
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color++; |
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break; |
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case plSpanEncoding::kColAI88: |
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*col16 = (uint16_t)(((*color) >> 16) & 0xffff); |
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col16++; |
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color++; |
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break; |
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case plSpanEncoding::kColRGB888: |
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*col8++ = (uint8_t)((*color >> 16) & 0xff); |
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*col8++ = (uint8_t)((*color >> 8) & 0xff); |
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*col8++ = (uint8_t)((*color >> 0) & 0xff); |
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color++; |
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break; |
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case plSpanEncoding::kColARGB8888: |
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*col32++ = *color; |
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color++; |
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break; |
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case plSpanEncoding::kColNone: |
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default: |
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break; |
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} |
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} |
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}
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