/** * @file llface.h * @brief LLFace class definition * * $LicenseInfo:firstyear=2001&license=viewergpl$ * * Copyright (c) 2001-2009, 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://secondlifegrid.net/programs/open_source/licensing/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://secondlifegrid.net/programs/open_source/licensing/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 "llviewertexture.h" #include "lldrawable.h" #include "lltextureatlasmanager.h" class LLFacePool; class LLVolume; class LLViewerTexture; class LLTextureEntry; class LLVertexProgram; class LLViewerTexture; class LLGeometryManager; class LLTextureAtlasSlot; 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 void setTexture(LLViewerTexture* tex) ; void switchTexture(LLViewerTexture* new_texture); void dirtyTexture(); 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 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; } LLViewerTexture* getTexture() const; void setViewerObject(LLViewerObject* object); void setPool(LLFacePool *pool, LLViewerTexture *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 void updateRebuildFlags(); 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_TEXCOORD0); void renderSelected(LLViewerTexture *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; } void setDrawInfo(LLDrawInfo* draw_info); F32 getTextureVirtualSize() ; F32 getImportanceToCamera()const {return mImportanceToCamera ;} //for atlas LLTextureAtlasSlot* getAtlasInfo() ; void setAtlasInUse(BOOL flag); void setAtlasInfo(LLTextureAtlasSlot* atlasp); BOOL isAtlasInUse()const; BOOL canUseAtlas() const; const LLVector2* getTexCoordScale() const ; const LLVector2* getTexCoordOffset()const; const LLTextureAtlas* getAtlas()const ; void removeAtlas() ; BOOL switchTexture() ; private: F32 adjustPartialOverlapPixelArea(F32 cos_angle_to_view_dir, F32 radius ); F32 calcPixelArea(F32& cos_angle_to_view_dir, F32& radius) ; public: static F32 calcImportanceToCamera(F32 to_view_dir, F32 dist); 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; LLDrawInfo* mDrawInfo; private: 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<LLViewerTexture> mTexture; LLPointer<LLDrawable> mDrawablep; LLPointer<LLViewerObject> mVObjp; S32 mTEOffset; S32 mReferenceIndex; F32 mVSize; F32 mPixelArea; //importance factor, in the range [0, 1.0]. //1.0: the most important. //based on the distance from the face to the view point and the angle from the face center to the view direction. F32 mImportanceToCamera ; F32 mBoundingSphereRadius ; //atlas LLPointer<LLTextureAtlasSlot> mAtlasInfop ; BOOL mUsingAtlas ; 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