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305 lines
7.4 KiB
305 lines
7.4 KiB
4 years ago
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/*==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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#ifndef plSpanInstance_inc
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#define plSpanInstance_inc
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#include "hsGeometry3.h"
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#include "hsMatrix44.h"
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// plClusterGroup
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// array of templates
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// array of materials (indexed by templates)
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// array of clusters
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// array of LOD blend
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// array of vis sets
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// plCluster
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// array of span instances that are combinable
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// LOD blend start and end index
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// vis set index
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// Combinable means:
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// same material
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// same format
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// same LOD blend
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// same vis set
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// same lights
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// same encoding?
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// plSpanInstance
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// template idx
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// 3x4 transform
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// encoding flags
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// (what components does it include, delPos? color?)
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// (what's the encoding? 32bit RGBA? 16Bit/Chan? 10Bit/Chan? 8Bit/Chan?)
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// (need an encoding per channel)
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// plSpanTemplate
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// numVerts
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// Format (assume pos & norm?)
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// kUVWMask
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// kColMask
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// kWeightMask
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// fPos
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// fNorm
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// fCol
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// fUVWs
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// fWeights
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class plSpanEncoding
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{
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public:
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enum
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{
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kPosNone = 0x0,
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kPos888 = 0x1,
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kPos161616 = 0x2,
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kPos101010 = 0x4,
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kPos008 = 0x8,
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kPosMask = kPos888 | kPos161616 | kPos101010 | kPos008,
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kColNone = 0x0,
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kColA8 = 0x10,
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kColI8 = 0x20,
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kColAI88 = 0x40,
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kColRGB888 = 0x80,
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kColARGB8888 = 0x100,
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kColMask = kColNone
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| kColA8
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| kColI8
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| kColAI88
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| kColRGB888
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| kColARGB8888,
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};
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UInt32 fCode;
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hsScalar fPosScale;
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plSpanEncoding() : fCode(kPosNone|kColNone), fPosScale(0) {}
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plSpanEncoding(UInt32 c, hsScalar s) : fCode(c), fPosScale(s) {}
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UInt32 Code() const { return fCode; }
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hsScalar Scale() const { return fPosScale; }
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void Read(hsStream* s);
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void Write(hsStream* s) const;
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};
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class plSpanInstance
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{
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protected:
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UInt8* fPosDelta;
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UInt8* fCol;
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hsScalar fL2W[3][4];
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friend class plSpanInstanceIter;
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public:
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plSpanInstance();
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~plSpanInstance();
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void Read(hsStream* s, const plSpanEncoding& encoding, UInt32 numVerts);
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void Write(hsStream* s, const plSpanEncoding& encoding, UInt32 numVerts) const;
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void Encode(const plSpanEncoding& encoding, UInt32 numVerts, const hsVector3* delPos, const UInt32* color);
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void Alloc(const plSpanEncoding& encoding, UInt32 numVerts);
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void DeAlloc();
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hsMatrix44 LocalToWorld() const;
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hsMatrix44 WorldToLocal() const;
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void SetLocalToWorld(const hsMatrix44& l2w);
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hsBool HasPosDelta() const { return fPosDelta != nil; }
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hsBool HasColor() const { return fCol != nil; }
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static UInt16 PosStrideFromEncoding(const plSpanEncoding& encoding)
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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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return 3;
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case plSpanEncoding::kPos161616:
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return 6;
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case plSpanEncoding::kPos101010:
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return 4;
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case plSpanEncoding::kPos008:
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return 1;
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}
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return 0;
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}
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static UInt16 ColStrideFromEncoding(const plSpanEncoding& encoding)
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{
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switch(encoding.fCode & plSpanEncoding::kPosMask)
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{
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case plSpanEncoding::kColNone:
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return 0;
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case plSpanEncoding::kColA8:
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return 1;
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case plSpanEncoding::kColI8:
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return 1;
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case plSpanEncoding::kColAI88:
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return 2;
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case plSpanEncoding::kColRGB888:
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return 3;
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case plSpanEncoding::kColARGB8888:
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return 4;
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}
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return 0;
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}
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};
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class plSpanInstanceIter
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{
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protected:
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plSpanInstance* fInst;
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plSpanEncoding fEncoding;
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UInt32 fNumVerts;
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Int32 fNumVertsLeft;
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UInt16 fPosStride;
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UInt16 fColStride;
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union {
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Int8* fPos888;
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Int16* fPos161616;
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UInt32* fPos101010;
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};
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union {
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UInt8* fA8;
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UInt8* fI8;
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UInt16* fAI88;
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UInt8* fRGB888;
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UInt32* fARGB8888;
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};
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public:
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plSpanInstanceIter();
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plSpanInstanceIter(plSpanInstance* inst, const plSpanEncoding& encoding, UInt32 numVerts) { Init(inst, encoding, numVerts); }
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void Init(plSpanInstance* inst, const plSpanEncoding& encoding, UInt32 numVerts)
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{
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fInst = inst;
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fEncoding = encoding;
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fNumVerts = numVerts;
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fPosStride = inst->PosStrideFromEncoding(fEncoding);
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fColStride = inst->ColStrideFromEncoding(fEncoding);
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fNumVertsLeft = 0;
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}
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void Begin()
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{
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fPos888 = (Int8*)fInst->fPosDelta;
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fA8 = fInst->fCol;
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fNumVertsLeft = fNumVerts;
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}
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void Advance()
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{
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fPos888 += fPosStride;
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fA8 += fColStride;
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fNumVertsLeft--;
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}
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hsBool More() const { return fNumVertsLeft > 0; }
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hsVector3 DelPos() const
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{
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switch(fEncoding.fCode & plSpanEncoding::kPosMask)
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{
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case plSpanEncoding::kPos888:
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return hsVector3(fPos888[0] * fEncoding.fPosScale,
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fPos888[1] * fEncoding.fPosScale,
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fPos888[2] * fEncoding.fPosScale);
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case plSpanEncoding::kPos161616:
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return hsVector3(fPos161616[0] * fEncoding.fPosScale,
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fPos161616[1] * fEncoding.fPosScale,
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fPos161616[2] * fEncoding.fPosScale);
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case plSpanEncoding::kPos101010:
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return hsVector3(int(*fPos101010 & 0x3f) * fEncoding.fPosScale,
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int((*fPos101010 >> 10) & 0x3f) * fEncoding.fPosScale,
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int((*fPos101010 >> 20) & 0x3f) * fEncoding.fPosScale);
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case plSpanEncoding::kPos008:
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return hsVector3(0,0, *fPos888 * fEncoding.fPosScale);
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}
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return hsVector3(0,0,0);
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};
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hsPoint3 Position(const hsPoint3& p) const
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{
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hsPoint3 pos(p);
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pos += DelPos();
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return pos;
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};
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UInt32 Color(UInt32 c) const
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{
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switch(fEncoding.fCode & plSpanEncoding::kColMask)
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{
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case plSpanEncoding::kColA8:
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return (c & 0x00ffffff) | *fA8;
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case plSpanEncoding::kColI8:
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return (c & 0xff000000)
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| (*fI8 << 16)
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| (*fI8 << 8)
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| (*fI8 << 0);
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case plSpanEncoding::kColAI88:
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{
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const UInt32 col = *fAI88 & 0xff;
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return ((*fAI88 & 0xff00) << 24)
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| (col << 16)
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| (col << 8)
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| (col << 0);
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}
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case plSpanEncoding::kColRGB888:
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return (c & 0xff000000)
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| (fRGB888[0] << 16)
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| (fRGB888[1] << 8)
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| (fRGB888[2] << 0);
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case plSpanEncoding::kColARGB8888:
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return *fARGB8888;
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}
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return c;
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};
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};
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#endif // plSpanInstance_inc
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