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/**
* @file llface.h
* @brief LLFace class definition
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2007, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlife.com/developers/opensource/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlife.com/developers/opensource/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#ifndef LL_LLFACE_H
#define LL_LLFACE_H
#include "llstrider.h"
#include "llrender.h"
#include "v2math.h"
#include "v3math.h"
#include "v4math.h"
#include "m4math.h"
#include "v4coloru.h"
#include "llquaternion.h"
#include "xform.h"
#include "lldarrayptr.h"
#include "llvertexbuffer.h"
#include "llviewerimage.h"
#include "llstat.h"
#include "lldrawable.h"
class LLFacePool;
class LLVolume;
class LLViewerImage;
class LLTextureEntry;
class LLVertexProgram;
class LLViewerImage;
class LLGeometryManager;
const F32 MIN_ALPHA_SIZE = 1024.f;
const F32 MIN_TEX_ANIM_SIZE = 512.f;
class LLFace
{
public:
enum EMasks
{
LIGHT = 0x0001,
GLOBAL = 0x0002,
FULLBRIGHT = 0x0004,
HUD_RENDER = 0x0008,
USE_FACE_COLOR = 0x0010,
TEXTURE_ANIM = 0x0020,
};
static void initClass();
public:
LLFace(LLDrawable* drawablep, LLViewerObject* objp) { init(drawablep, objp); }
~LLFace() { destroy(); }
const LLMatrix4& getWorldMatrix() const { return mVObjp->getWorldMatrix(mXform); }
const LLMatrix4& getRenderMatrix() const;
U32 getIndicesCount() const { return mIndicesCount; };
S32 getIndicesStart() const { return mIndicesIndex; };
U16 getGeomCount() const { return mGeomCount; } // vertex count for this face
U16 getGeomIndex() const { return mGeomIndex; } // index into draw pool
U16 getGeomStart() const { return mGeomIndex; } // index into draw pool
LLViewerImage* getTexture() const { return mTexture; }
void setTexture(LLViewerImage* tex) { mTexture = tex; }
LLXformMatrix* getXform() const { return mXform; }
BOOL hasGeometry() const { return mGeomCount > 0; }
LLVector3 getPositionAgent() const;
LLVector2 surfaceToTexture(LLVector2 surface_coord, LLVector3 position, LLVector3 normal);
U32 getState() const { return mState; }
void setState(U32 state) { mState |= state; }
void clearState(U32 state) { mState &= ~state; }
BOOL isState(U32 state) const { return ((mState & state) != 0) ? TRUE : FALSE; }
void setVirtualSize(F32 size) { mVSize = size; }
void setPixelArea(F32 area) { mPixelArea = area; }
F32 getVirtualSize() const { return mVSize; }
F32 getPixelArea() const { return mPixelArea; }
void bindTexture(S32 stage = 0) const { LLViewerImage::bindTexture(mTexture, stage); }
void renderSetColor() const;
S32 renderElements(const U16 *index_array) const;
S32 renderIndexed ();
S32 renderIndexed (U32 mask);
S32 pushVertices(const U16* index_array) const;
void setWorldMatrix(const LLMatrix4& mat);
const LLTextureEntry* getTextureEntry() const { return mVObjp->getTE(mTEOffset); }
LLFacePool* getPool() const { return mDrawPoolp; }
U32 getPoolType() const { return mPoolType; }
LLDrawable* getDrawable() const { return mDrawablep; }
LLViewerObject* getViewerObject() const { return mVObjp; }
S32 getLOD() const { return mVObjp.notNull() ? mVObjp->getLOD() : 0; }
LLVertexBuffer* getVertexBuffer() const { return mVertexBuffer; }
void setPoolType(U32 type) { mPoolType = type; }
S32 getTEOffset() { return mTEOffset; }
void setViewerObject(LLViewerObject* object);
void setPool(LLFacePool *pool, LLViewerImage *texturep);
void setDrawable(LLDrawable *drawable);
void setTEOffset(const S32 te_offset);
void setFaceColor(const LLColor4& color); // override material color
void unsetFaceColor(); // switch back to material color
const LLColor4& getFaceColor() const { return mFaceColor; }
const LLColor4& getRenderColor() const;
//for volumes
BOOL getGeometryVolume(const LLVolume& volume,
const S32 &f,
const LLMatrix4& mat_vert, const LLMatrix3& mat_normal,
const U16 &index_offset);
// For avatar
U16 getGeometryAvatar(
LLStrider<LLVector3> &vertices,
LLStrider<LLVector3> &normals,
LLStrider<LLVector2> &texCoords,
LLStrider<F32> &vertex_weights,
LLStrider<LLVector4> &clothing_weights);
// For volumes, etc.
U16 getGeometry(LLStrider<LLVector3> &vertices,
LLStrider<LLVector3> &normals,
LLStrider<LLVector2> &texCoords,
LLStrider<U16> &indices);
S32 getColors(LLStrider<LLColor4U> &colors);
S32 getIndices(LLStrider<U16> &indices);
void setSize(const S32 numVertices, const S32 num_indices = 0);
BOOL genVolumeBBoxes(const LLVolume &volume, S32 f,
const LLMatrix4& mat, const LLMatrix3& inv_trans_mat, BOOL global_volume = FALSE);
void init(LLDrawable* drawablep, LLViewerObject* objp);
void destroy();
void update();
void updateCenterAgent(); // Update center when xform has changed.
void renderSelectedUV();
void renderForSelect(U32 data_mask = LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_TEXCOORD);
void renderSelected(LLImageGL *image, const LLColor4 &color);
F32 getKey() const { return mDistance; }
S32 getReferenceIndex() const { return mReferenceIndex; }
void setReferenceIndex(const S32 index) { mReferenceIndex = index; }
BOOL verify(const U32* indices_array = NULL) const;
void printDebugInfo() const;
void setGeomIndex(U16 idx) { mGeomIndex = idx; }
void setIndicesIndex(S32 idx) { mIndicesIndex = idx; }
protected:
public:
LLVector3 mCenterLocal;
LLVector3 mCenterAgent;
LLVector3 mExtents[2];
LLVector2 mTexExtents[2];
F32 mDistance;
LLPointer<LLVertexBuffer> mVertexBuffer;
LLPointer<LLVertexBuffer> mLastVertexBuffer;
F32 mLastUpdateTime;
F32 mLastMoveTime;
LLMatrix4* mTextureMatrix;
protected:
friend class LLGeometryManager;
friend class LLVolumeGeometryManager;
U32 mState;
LLFacePool* mDrawPoolp;
U32 mPoolType;
LLColor4 mFaceColor; // overrides material color if state |= USE_FACE_COLOR
U16 mGeomCount; // vertex count for this face
U16 mGeomIndex; // index into draw pool
U32 mIndicesCount;
U32 mIndicesIndex; // index into draw pool for indices (yeah, I know!)
//previous rebuild's geometry info
U16 mLastGeomCount;
U16 mLastGeomIndex;
U32 mLastIndicesCount;
U32 mLastIndicesIndex;
LLXformMatrix* mXform;
LLPointer<LLViewerImage> mTexture;
LLPointer<LLDrawable> mDrawablep;
LLPointer<LLViewerObject> mVObjp;
S32 mTEOffset;
S32 mReferenceIndex;
F32 mVSize;
F32 mPixelArea;
protected:
static BOOL sSafeRenderSelect;
public:
struct CompareDistanceGreater
{
bool operator()(const LLFace* const& lhs, const LLFace* const& rhs)
{
return lhs->mDistance > rhs->mDistance; // farthest = first
}
};
struct CompareTexture
{
bool operator()(const LLFace* const& lhs, const LLFace* const& rhs)
{
return lhs->getTexture() < rhs->getTexture();
}
};
struct CompareBatchBreaker
{
bool operator()(const LLFace* const& lhs, const LLFace* const& rhs)
{
const LLTextureEntry* lte = lhs->getTextureEntry();
const LLTextureEntry* rte = rhs->getTextureEntry();
if (lhs->getTexture() != rhs->getTexture())
{
return lhs->getTexture() < rhs->getTexture();
}
else if (lte->getBumpShinyFullbright() != rte->getBumpShinyFullbright())
{
return lte->getBumpShinyFullbright() < rte->getBumpShinyFullbright();
}
else
{
return lte->getGlow() < rte->getGlow();
}
}
};
struct CompareTextureAndGeomCount
{
bool operator()(const LLFace* const& lhs, const LLFace* const& rhs)
{
return lhs->getTexture() == rhs->getTexture() ?
lhs->getGeomCount() < rhs->getGeomCount() : //smallest = first
lhs->getTexture() > rhs->getTexture();
}
};
struct CompareTextureAndLOD
{
bool operator()(const LLFace* const& lhs, const LLFace* const& rhs)
{
return lhs->getTexture() == rhs->getTexture() ?
lhs->getLOD() < rhs->getLOD() :
lhs->getTexture() < rhs->getTexture();
}
};
struct CompareTextureAndTime
{
bool operator()(const LLFace* const& lhs, const LLFace* const& rhs)
{
return lhs->getTexture() == rhs->getTexture() ?
lhs->mLastUpdateTime < rhs->mLastUpdateTime :
lhs->getTexture() < rhs->getTexture();
}
};
};
#endif // LL_LLFACE_H
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