llface.cpp
上传用户:king477883
上传日期:2021-03-01
资源大小:9553k
文件大小:42k
- /**
- * @file llface.cpp
- * @brief LLFace class implementation
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, 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.
- * $/LicenseInfo$
- */
- #include "llviewerprecompiledheaders.h"
- #include "lldrawable.h" // lldrawable needs to be included before llface
- #include "llface.h"
- #include "llviewertextureanim.h"
- #include "llviewercontrol.h"
- #include "llvolume.h"
- #include "m3math.h"
- #include "v3color.h"
- #include "lldrawpoolbump.h"
- #include "llgl.h"
- #include "llrender.h"
- #include "lllightconstants.h"
- #include "llsky.h"
- #include "llviewercamera.h"
- #include "llviewertexturelist.h"
- #include "llvosky.h"
- #include "llvovolume.h"
- #include "pipeline.h"
- #include "llviewerregion.h"
- #include "llviewerwindow.h"
- #define LL_MAX_INDICES_COUNT 1000000
- BOOL LLFace::sSafeRenderSelect = TRUE; // FALSE
- #define DOTVEC(a,b) (a.mV[0]*b.mV[0] + a.mV[1]*b.mV[1] + a.mV[2]*b.mV[2])
- /*
- For each vertex, given:
- B - binormal
- T - tangent
- N - normal
- P - position
- The resulting texture coordinate <u,v> is:
- u = 2(B dot P)
- v = 2(T dot P)
- */
- void planarProjection(LLVector2 &tc, const LLVector3& normal,
- const LLVector3 &mCenter, const LLVector3& vec)
- { //DONE!
- LLVector3 binormal;
- float d = normal * LLVector3(1,0,0);
- if (d >= 0.5f || d <= -0.5f)
- {
- binormal = LLVector3(0,1,0);
- if (normal.mV[0] < 0)
- {
- binormal = -binormal;
- }
- }
- else
- {
- binormal = LLVector3(1,0,0);
- if (normal.mV[1] > 0)
- {
- binormal = -binormal;
- }
- }
- LLVector3 tangent = binormal % normal;
- tc.mV[1] = -((tangent*vec)*2 - 0.5f);
- tc.mV[0] = 1.0f+((binormal*vec)*2 - 0.5f);
- }
- void sphericalProjection(LLVector2 &tc, const LLVector3& normal,
- const LLVector3 &mCenter, const LLVector3& vec)
- { //BROKEN
- /*tc.mV[0] = acosf(vd.mNormal * LLVector3(1,0,0))/3.14159f;
-
- tc.mV[1] = acosf(vd.mNormal * LLVector3(0,0,1))/6.284f;
- if (vd.mNormal.mV[1] > 0)
- {
- tc.mV[1] = 1.0f-tc.mV[1];
- }*/
- }
- void cylindricalProjection(LLVector2 &tc, const LLVector3& normal, const LLVector3 &mCenter, const LLVector3& vec)
- { //BROKEN
- /*LLVector3 binormal;
- float d = vd.mNormal * LLVector3(1,0,0);
- if (d >= 0.5f || d <= -0.5f)
- {
- binormal = LLVector3(0,1,0);
- }
- else{
- binormal = LLVector3(1,0,0);
- }
- LLVector3 tangent = binormal % vd.mNormal;
- tc.mV[1] = -((tangent*vec)*2 - 0.5f);
- tc.mV[0] = acosf(vd.mNormal * LLVector3(1,0,0))/6.284f;
- if (vd.mNormal.mV[1] < 0)
- {
- tc.mV[0] = 1.0f-tc.mV[0];
- }*/
- }
- ////////////////////
- //
- // LLFace implementation
- //
- void LLFace::init(LLDrawable* drawablep, LLViewerObject* objp)
- {
- mLastUpdateTime = gFrameTimeSeconds;
- mLastMoveTime = 0.f;
- mVSize = 0.f;
- mPixelArea = 16.f;
- mState = GLOBAL;
- mDrawPoolp = NULL;
- mPoolType = 0;
- mCenterLocal = objp->getPosition();
- mCenterAgent = drawablep->getPositionAgent();
- mDistance = 0.f;
- mGeomCount = 0;
- mGeomIndex = 0;
- mIndicesCount = 0;
- mIndicesIndex = 0;
- mIndexInTex = 0;
- mTexture = NULL;
- mTEOffset = -1;
- setDrawable(drawablep);
- mVObjp = objp;
- mReferenceIndex = -1;
- mTextureMatrix = NULL;
- mDrawInfo = NULL;
- mFaceColor = LLColor4(1,0,0,1);
- mLastVertexBuffer = mVertexBuffer;
- mLastGeomCount = mGeomCount;
- mLastGeomIndex = mGeomIndex;
- mLastIndicesCount = mIndicesCount;
- mLastIndicesIndex = mIndicesIndex;
- mImportanceToCamera = 0.f ;
- mBoundingSphereRadius = 0.0f ;
- mAtlasInfop = NULL ;
- mUsingAtlas = FALSE ;
- mHasMedia = FALSE ;
- }
- void LLFace::destroy()
- {
- if(mTexture.notNull())
- {
- mTexture->removeFace(this) ;
- }
-
- if (mDrawPoolp)
- {
- mDrawPoolp->removeFace(this);
- mDrawPoolp = NULL;
- }
- if (mTextureMatrix)
- {
- delete mTextureMatrix;
- mTextureMatrix = NULL;
- if (mDrawablep.notNull())
- {
- LLSpatialGroup* group = mDrawablep->getSpatialGroup();
- if (group)
- {
- group->dirtyGeom();
- gPipeline.markRebuild(group, TRUE);
- }
- }
- }
-
- setDrawInfo(NULL);
-
- removeAtlas();
- mDrawablep = NULL;
- mVObjp = NULL;
- }
- // static
- void LLFace::initClass()
- {
- }
- void LLFace::setWorldMatrix(const LLMatrix4 &mat)
- {
- llerrs << "Faces on this drawable are not independently modifiablen" << llendl;
- }
- void LLFace::setPool(LLFacePool* new_pool, LLViewerTexture *texturep)
- {
- LLMemType mt1(LLMemType::MTYPE_DRAWABLE);
-
- if (!new_pool)
- {
- llerrs << "Setting pool to null!" << llendl;
- }
- if (new_pool != mDrawPoolp)
- {
- // Remove from old pool
- if (mDrawPoolp)
- {
- mDrawPoolp->removeFace(this);
- if (mDrawablep)
- {
- gPipeline.markRebuild(mDrawablep, LLDrawable::REBUILD_ALL, TRUE);
- }
- }
- mGeomIndex = 0;
- // Add to new pool
- if (new_pool)
- {
- new_pool->addFace(this);
- }
- mDrawPoolp = new_pool;
- }
-
- setTexture(texturep) ;
- }
- void LLFace::setTexture(LLViewerTexture* tex)
- {
- if(mTexture == tex)
- {
- return ;
- }
- if(mTexture.notNull())
- {
- mTexture->removeFace(this) ;
- removeAtlas() ;
- }
-
- if(tex)
- {
- tex->addFace(this) ;
- }
- mTexture = tex ;
- }
- void LLFace::dirtyTexture()
- {
- gPipeline.markTextured(getDrawable());
- }
- void LLFace::switchTexture(LLViewerTexture* new_texture)
- {
- if(mTexture == new_texture)
- {
- return ;
- }
- if(!new_texture)
- {
- llerrs << "Can not switch to a null texture." << llendl;
- return;
- }
- new_texture->addTextureStats(mTexture->getMaxVirtualSize()) ;
- getViewerObject()->changeTEImage(mTEOffset, new_texture) ;
- setTexture(new_texture) ;
- dirtyTexture();
- }
- void LLFace::setTEOffset(const S32 te_offset)
- {
- mTEOffset = te_offset;
- }
- void LLFace::setFaceColor(const LLColor4& color)
- {
- mFaceColor = color;
- setState(USE_FACE_COLOR);
- }
- void LLFace::unsetFaceColor()
- {
- clearState(USE_FACE_COLOR);
- }
- void LLFace::setDrawable(LLDrawable *drawable)
- {
- mDrawablep = drawable;
- mXform = &drawable->mXform;
- }
- void LLFace::setSize(const S32 num_vertices, const S32 num_indices)
- {
- if (mGeomCount != num_vertices ||
- mIndicesCount != num_indices)
- {
- mGeomCount = num_vertices;
- mIndicesCount = num_indices;
- mVertexBuffer = NULL;
- mLastVertexBuffer = NULL;
- }
- }
- //============================================================================
- U16 LLFace::getGeometryAvatar(
- LLStrider<LLVector3> &vertices,
- LLStrider<LLVector3> &normals,
- LLStrider<LLVector2> &tex_coords,
- LLStrider<F32> &vertex_weights,
- LLStrider<LLVector4> &clothing_weights)
- {
- LLMemType mt1(LLMemType::MTYPE_DRAWABLE);
- if (mVertexBuffer.notNull())
- {
- mVertexBuffer->getVertexStrider (vertices, mGeomIndex);
- mVertexBuffer->getNormalStrider (normals, mGeomIndex);
- mVertexBuffer->getTexCoord0Strider (tex_coords, mGeomIndex);
- mVertexBuffer->getWeightStrider(vertex_weights, mGeomIndex);
- mVertexBuffer->getClothWeightStrider(clothing_weights, mGeomIndex);
- }
- return mGeomIndex;
- }
- U16 LLFace::getGeometry(LLStrider<LLVector3> &vertices, LLStrider<LLVector3> &normals,
- LLStrider<LLVector2> &tex_coords, LLStrider<U16> &indicesp)
- {
- LLMemType mt1(LLMemType::MTYPE_DRAWABLE);
-
- if (mVertexBuffer.notNull())
- {
- mVertexBuffer->getVertexStrider(vertices, mGeomIndex);
- if (mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_NORMAL))
- {
- mVertexBuffer->getNormalStrider(normals, mGeomIndex);
- }
- if (mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_TEXCOORD0))
- {
- mVertexBuffer->getTexCoord0Strider(tex_coords, mGeomIndex);
- }
- mVertexBuffer->getIndexStrider(indicesp, mIndicesIndex);
- }
-
- return mGeomIndex;
- }
- void LLFace::updateCenterAgent()
- {
- if (mDrawablep->isActive())
- {
- mCenterAgent = mCenterLocal * getRenderMatrix();
- }
- else
- {
- mCenterAgent = mCenterLocal;
- }
- }
- void LLFace::renderForSelect(U32 data_mask)
- {
- if(mDrawablep.isNull() || mVertexBuffer.isNull())
- {
- return;
- }
- LLSpatialGroup* group = mDrawablep->getSpatialGroup();
- if (!group || group->isState(LLSpatialGroup::GEOM_DIRTY))
- {
- return;
- }
- if (mVObjp->mGLName)
- {
- S32 name = mVObjp->mGLName;
- LLColor4U color((U8)(name >> 16), (U8)(name >> 8), (U8)name);
- #if 0 // *FIX: Postponing this fix until we have texcoord pick info...
- if (mTEOffset != -1)
- {
- color.mV[VALPHA] = (U8)(getTextureEntry()->getColor().mV[VALPHA] * 255.f);
- }
- #endif
- glColor4ubv(color.mV);
- if (!getPool())
- {
- switch (getPoolType())
- {
- case LLDrawPool::POOL_ALPHA:
- gGL.getTexUnit(0)->bind(getTexture());
- break;
- default:
- gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
- break;
- }
- }
- mVertexBuffer->setBuffer(data_mask);
- #if !LL_RELEASE_FOR_DOWNLOAD
- LLGLState::checkClientArrays("", data_mask);
- #endif
- if (mTEOffset != -1)
- {
- // mask off high 4 bits (16 total possible faces)
- color.mV[0] &= 0x0f;
- color.mV[0] |= (mTEOffset & 0x0f) << 4;
- glColor4ubv(color.mV);
- }
- if (mIndicesCount)
- {
- if (isState(GLOBAL))
- {
- if (mDrawablep->getVOVolume())
- {
- glPushMatrix();
- glMultMatrixf((float*) mDrawablep->getRegion()->mRenderMatrix.mMatrix);
- mVertexBuffer->draw(LLRender::TRIANGLES, mIndicesCount, mIndicesIndex);
- glPopMatrix();
- }
- else
- {
- mVertexBuffer->draw(LLRender::TRIANGLES, mIndicesCount, mIndicesIndex);
- }
- }
- else
- {
- glPushMatrix();
- glMultMatrixf((float*)getRenderMatrix().mMatrix);
- mVertexBuffer->draw(LLRender::TRIANGLES, mIndicesCount, mIndicesIndex);
- glPopMatrix();
- }
- }
- }
- }
- void LLFace::renderSelected(LLViewerTexture *imagep, const LLColor4& color)
- {
- if (mDrawablep->getSpatialGroup() == NULL)
- {
- return;
- }
- mDrawablep->getSpatialGroup()->rebuildGeom();
- mDrawablep->getSpatialGroup()->rebuildMesh();
-
- if(mDrawablep.isNull() || mVertexBuffer.isNull())
- {
- return;
- }
- if (mGeomCount > 0 && mIndicesCount > 0)
- {
- gGL.getTexUnit(0)->bind(imagep);
-
- gGL.pushMatrix();
- if (mDrawablep->isActive())
- {
- glMultMatrixf((GLfloat*)mDrawablep->getRenderMatrix().mMatrix);
- }
- else
- {
- glMultMatrixf((GLfloat*)mDrawablep->getRegion()->mRenderMatrix.mMatrix);
- }
- glColor4fv(color.mV);
- mVertexBuffer->setBuffer(LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_TEXCOORD0);
- mVertexBuffer->draw(LLRender::TRIANGLES, mIndicesCount, mIndicesIndex);
- gGL.popMatrix();
- }
- }
- /* removed in lieu of raycast uv detection
- void LLFace::renderSelectedUV()
- {
- LLViewerTexture* red_blue_imagep = LLViewerTextureManager::getFetchedTextureFromFile("uv_test1.j2c", TRUE, LLViewerTexture::BOOST_UI);
- LLViewerTexture* green_imagep = LLViewerTextureManager::getFetchedTextureFromFile("uv_test2.tga", TRUE, LLViewerTexture::BOOST_UI);
- LLGLSUVSelect object_select;
- // use red/blue gradient to get coarse UV coordinates
- renderSelected(red_blue_imagep, LLColor4::white);
-
- static F32 bias = 0.f;
- static F32 factor = -10.f;
- glPolygonOffset(factor, bias);
- // add green dither pattern on top of red/blue gradient
- gGL.blendFunc(LLRender::BF_ONE, LLRender::BF_ONE);
- glMatrixMode(GL_TEXTURE);
- glPushMatrix();
- // make green pattern repeat once per texel in red/blue texture
- glScalef(256.f, 256.f, 1.f);
- glMatrixMode(GL_MODELVIEW);
- renderSelected(green_imagep, LLColor4::white);
- glMatrixMode(GL_TEXTURE);
- glPopMatrix();
- glMatrixMode(GL_MODELVIEW);
- gGL.blendFunc(LLRender::BF_SOURCE_ALPHA, LLRender::BF_ONE_MINUS_SOURCE_ALPHA);
- }
- */
- void LLFace::setDrawInfo(LLDrawInfo* draw_info)
- {
- if (draw_info)
- {
- if (draw_info->mFace)
- {
- draw_info->mFace->setDrawInfo(NULL);
- }
- draw_info->mFace = this;
- }
-
- if (mDrawInfo)
- {
- mDrawInfo->mFace = NULL;
- }
- mDrawInfo = draw_info;
- }
- void LLFace::printDebugInfo() const
- {
- LLFacePool *poolp = getPool();
- llinfos << "Object: " << getViewerObject()->mID << llendl;
- if (getDrawable())
- {
- llinfos << "Type: " << LLPrimitive::pCodeToString(getDrawable()->getVObj()->getPCode()) << llendl;
- }
- if (getTexture())
- {
- llinfos << "Texture: " << getTexture() << " Comps: " << (U32)getTexture()->getComponents() << llendl;
- }
- else
- {
- llinfos << "No texture: " << llendl;
- }
- llinfos << "Face: " << this << llendl;
- llinfos << "State: " << getState() << llendl;
- llinfos << "Geom Index Data:" << llendl;
- llinfos << "--------------------" << llendl;
- llinfos << "GI: " << mGeomIndex << " Count:" << mGeomCount << llendl;
- llinfos << "Face Index Data:" << llendl;
- llinfos << "--------------------" << llendl;
- llinfos << "II: " << mIndicesIndex << " Count:" << mIndicesCount << llendl;
- llinfos << llendl;
- poolp->printDebugInfo();
- S32 pool_references = 0;
- for (std::vector<LLFace*>::iterator iter = poolp->mReferences.begin();
- iter != poolp->mReferences.end(); iter++)
- {
- LLFace *facep = *iter;
- if (facep == this)
- {
- llinfos << "Pool reference: " << pool_references << llendl;
- pool_references++;
- }
- }
- if (pool_references != 1)
- {
- llinfos << "Incorrect number of pool references!" << llendl;
- }
- #if 0
- llinfos << "Indices:" << llendl;
- llinfos << "--------------------" << llendl;
- const U32 *indicesp = getRawIndices();
- S32 indices_count = getIndicesCount();
- S32 geom_start = getGeomStart();
- for (S32 i = 0; i < indices_count; i++)
- {
- llinfos << i << ":" << indicesp[i] << ":" << (S32)(indicesp[i] - geom_start) << llendl;
- }
- llinfos << llendl;
- llinfos << "Vertices:" << llendl;
- llinfos << "--------------------" << llendl;
- for (S32 i = 0; i < mGeomCount; i++)
- {
- llinfos << mGeomIndex + i << ":" << poolp->getVertex(mGeomIndex + i) << llendl;
- }
- llinfos << llendl;
- #endif
- }
- // Transform the texture coordinates for this face.
- static void xform(LLVector2 &tex_coord, F32 cosAng, F32 sinAng, F32 offS, F32 offT, F32 magS, F32 magT)
- {
- // New, good way
- F32 s = tex_coord.mV[0];
- F32 t = tex_coord.mV[1];
- // Texture transforms are done about the center of the face.
- s -= 0.5;
- t -= 0.5;
- // Handle rotation
- F32 temp = s;
- s = s * cosAng + t * sinAng;
- t = -temp * sinAng + t * cosAng;
- // Then scale
- s *= magS;
- t *= magT;
- // Then offset
- s += offS + 0.5f;
- t += offT + 0.5f;
- tex_coord.mV[0] = s;
- tex_coord.mV[1] = t;
- }
- BOOL LLFace::genVolumeBBoxes(const LLVolume &volume, S32 f,
- const LLMatrix4& mat_vert, const LLMatrix3& mat_normal, BOOL global_volume)
- {
- LLMemType mt1(LLMemType::MTYPE_DRAWABLE);
- //get bounding box
- if (mDrawablep->isState(LLDrawable::REBUILD_VOLUME | LLDrawable::REBUILD_POSITION))
- {
- //if (mDrawablep->isState(LLDrawable::REBUILD_VOLUME))
- //{ //vertex buffer no longer valid
- // mVertexBuffer = NULL;
- // mLastVertexBuffer = NULL;
- //}
- LLVector3 min,max;
-
- if (f >= volume.getNumVolumeFaces())
- {
- min = LLVector3(-1,-1,-1);
- max = LLVector3(1,1,1);
- }
- else
- {
- const LLVolumeFace &face = volume.getVolumeFace(f);
- min = face.mExtents[0];
- max = face.mExtents[1];
- }
- //min, max are in volume space, convert to drawable render space
- LLVector3 center = ((min + max) * 0.5f)*mat_vert;
- LLVector3 size = ((max-min) * 0.5f);
- if (!global_volume)
- {
- size.scaleVec(mDrawablep->getVObj()->getScale());
- }
- LLMatrix3 mat = mat_normal;
- LLVector3 x = mat.getFwdRow();
- LLVector3 y = mat.getLeftRow();
- LLVector3 z = mat.getUpRow();
- x.normVec();
- y.normVec();
- z.normVec();
- mat.setRows(x,y,z);
- LLQuaternion rotation = LLQuaternion(mat);
-
- LLVector3 v[4];
- //get 4 corners of bounding box
- v[0] = (size * rotation);
- v[1] = (LLVector3(-size.mV[0], -size.mV[1], size.mV[2]) * rotation);
- v[2] = (LLVector3(size.mV[0], -size.mV[1], -size.mV[2]) * rotation);
- v[3] = (LLVector3(-size.mV[0], size.mV[1], -size.mV[2]) * rotation);
- LLVector3& newMin = mExtents[0];
- LLVector3& newMax = mExtents[1];
-
- newMin = newMax = center;
-
- for (U32 i = 0; i < 4; i++)
- {
- for (U32 j = 0; j < 3; j++)
- {
- F32 delta = fabsf(v[i].mV[j]);
- F32 min = center.mV[j] - delta;
- F32 max = center.mV[j] + delta;
-
- if (min < newMin.mV[j])
- {
- newMin.mV[j] = min;
- }
-
- if (max > newMax.mV[j])
- {
- newMax.mV[j] = max;
- }
- }
- }
- if (!mDrawablep->isActive())
- {
- LLVector3 offset = mDrawablep->getRegion()->getOriginAgent();
- newMin += offset;
- newMax += offset;
- }
- mCenterLocal = (newMin+newMax)*0.5f;
- LLVector3 tmp = (newMin - newMax) ;
- mBoundingSphereRadius = tmp.length() * 0.5f ;
- updateCenterAgent();
- }
- return TRUE;
- }
- // convert surface coordinates to texture coordinates, based on
- // the values in the texture entry. probably should be
- // integrated with getGeometryVolume() for its texture coordinate
- // generation - but i'll leave that to someone more familiar
- // with the implications.
- LLVector2 LLFace::surfaceToTexture(LLVector2 surface_coord, LLVector3 position, LLVector3 normal)
- {
- LLVector2 tc = surface_coord;
-
- const LLTextureEntry *tep = getTextureEntry();
- if (tep == NULL)
- {
- // can't do much without the texture entry
- return surface_coord;
- }
- // see if we have a non-default mapping
- U8 texgen = getTextureEntry()->getTexGen();
- if (texgen != LLTextureEntry::TEX_GEN_DEFAULT)
- {
- LLVector3 center = mDrawablep->getVOVolume()->getVolume()->getVolumeFace(mTEOffset).mCenter;
-
- LLVector3 scale = (mDrawablep->getVOVolume()->isVolumeGlobal()) ? LLVector3(1,1,1) : mVObjp->getScale();
- LLVector3 volume_position = mDrawablep->getVOVolume()->agentPositionToVolume(position);
- volume_position.scaleVec(scale);
-
- LLVector3 volume_normal = mDrawablep->getVOVolume()->agentDirectionToVolume(normal);
- volume_normal.normalize();
-
- switch (texgen)
- {
- case LLTextureEntry::TEX_GEN_PLANAR:
- planarProjection(tc, volume_normal, center, volume_position);
- break;
- case LLTextureEntry::TEX_GEN_SPHERICAL:
- sphericalProjection(tc, volume_normal, center, volume_position);
- break;
- case LLTextureEntry::TEX_GEN_CYLINDRICAL:
- cylindricalProjection(tc, volume_normal, center, volume_position);
- break;
- default:
- break;
- }
- }
- if (mTextureMatrix) // if we have a texture matrix, use it
- {
- LLVector3 tc3(tc);
- tc3 = tc3 * *mTextureMatrix;
- tc = LLVector2(tc3);
- }
-
- else // otherwise use the texture entry parameters
- {
- xform(tc, cos(tep->getRotation()), sin(tep->getRotation()),
- tep->mOffsetS, tep->mOffsetT, tep->mScaleS, tep->mScaleT);
- }
-
- return tc;
- }
- void LLFace::updateRebuildFlags()
- {
- if (!mDrawablep->isState(LLDrawable::REBUILD_VOLUME))
- {
- BOOL moved = TRUE;
- if (mLastVertexBuffer == mVertexBuffer &&
- !mVertexBuffer->isEmpty())
- { //this face really doesn't need to be regenerated, try real hard not to do so
- if (mLastGeomCount == mGeomCount &&
- mLastGeomIndex == mGeomIndex &&
- mLastIndicesCount == mIndicesCount &&
- mLastIndicesIndex == mIndicesIndex)
- { //data is in same location in vertex buffer
- moved = FALSE;
- }
- }
- mLastMoveTime = gFrameTimeSeconds;
-
- if (moved)
- {
- mDrawablep->setState(LLDrawable::REBUILD_VOLUME);
- }
- }
- else
- {
- mLastUpdateTime = gFrameTimeSeconds;
- }
- }
- BOOL LLFace::getGeometryVolume(const LLVolume& volume,
- const S32 &f,
- const LLMatrix4& mat_vert, const LLMatrix3& mat_normal,
- const U16 &index_offset)
- {
- llpushcallstacks ;
- const LLVolumeFace &vf = volume.getVolumeFace(f);
- S32 num_vertices = (S32)vf.mVertices.size();
- S32 num_indices = (S32)vf.mIndices.size();
-
- if (mVertexBuffer.notNull())
- {
- if (num_indices + (S32) mIndicesIndex > mVertexBuffer->getNumIndices())
- {
- llwarns << "Index buffer overflow!" << llendl;
- llwarns << "Indices Count: " << mIndicesCount
- << " VF Num Indices: " << num_indices
- << " Indices Index: " << mIndicesIndex
- << " VB Num Indices: " << mVertexBuffer->getNumIndices() << llendl;
- llwarns << "Last Indices Count: " << mLastIndicesCount
- << " Last Indices Index: " << mLastIndicesIndex
- << " Face Index: " << f
- << " Pool Type: " << mPoolType << llendl;
- return FALSE;
- }
- if (num_vertices + mGeomIndex > mVertexBuffer->getNumVerts())
- {
- llwarns << "Vertex buffer overflow!" << llendl;
- return FALSE;
- }
- }
- LLStrider<LLVector3> vertices;
- LLStrider<LLVector2> tex_coords;
- LLStrider<LLVector2> tex_coords2;
- LLStrider<LLVector3> normals;
- LLStrider<LLColor4U> colors;
- LLStrider<LLVector3> binormals;
- LLStrider<U16> indicesp;
- BOOL full_rebuild = mDrawablep->isState(LLDrawable::REBUILD_VOLUME);
-
- BOOL global_volume = mDrawablep->getVOVolume()->isVolumeGlobal();
- LLVector3 scale;
- if (global_volume)
- {
- scale.setVec(1,1,1);
- }
- else
- {
- scale = mVObjp->getScale();
- }
-
- BOOL rebuild_pos = full_rebuild || mDrawablep->isState(LLDrawable::REBUILD_POSITION);
- BOOL rebuild_color = full_rebuild || mDrawablep->isState(LLDrawable::REBUILD_COLOR);
- BOOL rebuild_tcoord = full_rebuild || mDrawablep->isState(LLDrawable::REBUILD_TCOORD);
- BOOL rebuild_normal = rebuild_pos && mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_NORMAL);
- BOOL rebuild_binormal = rebuild_pos && mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_BINORMAL);
- const LLTextureEntry *tep = mVObjp->getTE(f);
- U8 bump_code = tep ? tep->getBumpmap() : 0;
- if (rebuild_pos)
- {
- mVertexBuffer->getVertexStrider(vertices, mGeomIndex);
- }
- if (rebuild_normal)
- {
- mVertexBuffer->getNormalStrider(normals, mGeomIndex);
- }
- if (rebuild_binormal)
- {
- mVertexBuffer->getBinormalStrider(binormals, mGeomIndex);
- }
- F32 tcoord_xoffset = 0.f ;
- F32 tcoord_yoffset = 0.f ;
- F32 tcoord_xscale = 1.f ;
- F32 tcoord_yscale = 1.f ;
- BOOL in_atlas = FALSE ;
- if (rebuild_tcoord)
- {
- mVertexBuffer->getTexCoord0Strider(tex_coords, mGeomIndex);
- if (bump_code && mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_TEXCOORD1))
- {
- mVertexBuffer->getTexCoord1Strider(tex_coords2, mGeomIndex);
- }
- in_atlas = isAtlasInUse() ;
- if(in_atlas)
- {
- const LLVector2* tmp = getTexCoordOffset() ;
- tcoord_xoffset = tmp->mV[0] ;
- tcoord_yoffset = tmp->mV[1] ;
- tmp = getTexCoordScale() ;
- tcoord_xscale = tmp->mV[0] ;
- tcoord_yscale = tmp->mV[1] ;
- }
- }
- if (rebuild_color)
- {
- mVertexBuffer->getColorStrider(colors, mGeomIndex);
- }
- F32 r = 0, os = 0, ot = 0, ms = 0, mt = 0, cos_ang = 0, sin_ang = 0;
-
- BOOL is_static = mDrawablep->isStatic();
- BOOL is_global = is_static;
- LLVector3 center_sum(0.f, 0.f, 0.f);
-
- if (is_global)
- {
- setState(GLOBAL);
- }
- else
- {
- clearState(GLOBAL);
- }
- LLVector2 tmin, tmax;
-
-
- if (rebuild_tcoord)
- {
- if (tep)
- {
- r = tep->getRotation();
- os = tep->mOffsetS;
- ot = tep->mOffsetT;
- ms = tep->mScaleS;
- mt = tep->mScaleT;
- cos_ang = cos(r);
- sin_ang = sin(r);
- }
- else
- {
- cos_ang = 1.0f;
- sin_ang = 0.0f;
- os = 0.0f;
- ot = 0.0f;
- ms = 1.0f;
- mt = 1.0f;
- }
- }
- U8 tex_mode = 0;
-
- if (isState(TEXTURE_ANIM))
- {
- LLVOVolume* vobj = (LLVOVolume*) (LLViewerObject*) mVObjp;
- tex_mode = vobj->mTexAnimMode;
- if (!tex_mode)
- {
- clearState(TEXTURE_ANIM);
- }
- else
- {
- os = ot = 0.f;
- r = 0.f;
- cos_ang = 1.f;
- sin_ang = 0.f;
- ms = mt = 1.f;
- }
- if (getVirtualSize() >= MIN_TEX_ANIM_SIZE)
- { //don't override texture transform during tc bake
- tex_mode = 0;
- }
- }
- LLColor4U color = tep->getColor();
- if (rebuild_color)
- {
- if (tep)
- {
- GLfloat alpha[4] =
- {
- 0.00f,
- 0.25f,
- 0.5f,
- 0.75f
- };
-
- if (getPoolType() != LLDrawPool::POOL_ALPHA && (LLPipeline::sRenderDeferred || (LLPipeline::sRenderBump && tep->getShiny())))
- {
- color.mV[3] = U8 (alpha[tep->getShiny()] * 255);
- }
- }
- }
- // INDICES
- if (full_rebuild)
- {
- mVertexBuffer->getIndexStrider(indicesp, mIndicesIndex);
- for (U16 i = 0; i < num_indices; i++)
- {
- *indicesp++ = vf.mIndices[i] + index_offset;
- }
- }
-
-
- //bump setup
- LLVector3 binormal_dir( -sin_ang, cos_ang, 0 );
- LLVector3 bump_s_primary_light_ray;
- LLVector3 bump_t_primary_light_ray;
- LLQuaternion bump_quat;
- if (mDrawablep->isActive())
- {
- bump_quat = LLQuaternion(mDrawablep->getRenderMatrix());
- }
-
- if (bump_code)
- {
- mVObjp->getVolume()->genBinormals(f);
- F32 offset_multiple;
- switch( bump_code )
- {
- case BE_NO_BUMP:
- offset_multiple = 0.f;
- break;
- case BE_BRIGHTNESS:
- case BE_DARKNESS:
- if( mTexture.notNull() && mTexture->hasGLTexture())
- {
- // Offset by approximately one texel
- S32 cur_discard = mTexture->getDiscardLevel();
- S32 max_size = llmax( mTexture->getWidth(), mTexture->getHeight() );
- max_size <<= cur_discard;
- const F32 ARTIFICIAL_OFFSET = 2.f;
- offset_multiple = ARTIFICIAL_OFFSET / (F32)max_size;
- }
- else
- {
- offset_multiple = 1.f/256;
- }
- break;
- default: // Standard bumpmap textures. Assumed to be 256x256
- offset_multiple = 1.f / 256;
- break;
- }
- F32 s_scale = 1.f;
- F32 t_scale = 1.f;
- if( tep )
- {
- tep->getScale( &s_scale, &t_scale );
- }
- // Use the nudged south when coming from above sun angle, such
- // that emboss mapping always shows up on the upward faces of cubes when
- // it's noon (since a lot of builders build with the sun forced to noon).
- LLVector3 sun_ray = gSky.mVOSkyp->mBumpSunDir;
- LLVector3 moon_ray = gSky.getMoonDirection();
- LLVector3& primary_light_ray = (sun_ray.mV[VZ] > 0) ? sun_ray : moon_ray;
- bump_s_primary_light_ray = offset_multiple * s_scale * primary_light_ray;
- bump_t_primary_light_ray = offset_multiple * t_scale * primary_light_ray;
- }
-
- U8 texgen = getTextureEntry()->getTexGen();
- if (rebuild_tcoord && texgen != LLTextureEntry::TEX_GEN_DEFAULT)
- { //planar texgen needs binormals
- mVObjp->getVolume()->genBinormals(f);
- }
- for (S32 i = 0; i < num_vertices; i++)
- {
- if (rebuild_tcoord)
- {
- LLVector2 tc = vf.mVertices[i].mTexCoord;
-
- if (texgen != LLTextureEntry::TEX_GEN_DEFAULT)
- {
- LLVector3 vec = vf.mVertices[i].mPosition;
-
- vec.scaleVec(scale);
- switch (texgen)
- {
- case LLTextureEntry::TEX_GEN_PLANAR:
- planarProjection(tc, vf.mVertices[i].mNormal, vf.mCenter, vec);
- break;
- case LLTextureEntry::TEX_GEN_SPHERICAL:
- sphericalProjection(tc, vf.mVertices[i].mNormal, vf.mCenter, vec);
- break;
- case LLTextureEntry::TEX_GEN_CYLINDRICAL:
- cylindricalProjection(tc, vf.mVertices[i].mNormal, vf.mCenter, vec);
- break;
- default:
- break;
- }
- }
- if (tex_mode && mTextureMatrix)
- {
- LLVector3 tmp(tc.mV[0], tc.mV[1], 0.f);
- tmp = tmp * *mTextureMatrix;
- tc.mV[0] = tmp.mV[0];
- tc.mV[1] = tmp.mV[1];
- }
- else
- {
- xform(tc, cos_ang, sin_ang, os, ot, ms, mt);
- }
- if(in_atlas)
- {
- //
- //manually calculate tex-coord per vertex for varying address modes.
- //should be removed if shader can handle this.
- //
- S32 int_part = 0 ;
- switch(mTexture->getAddressMode())
- {
- case LLTexUnit::TAM_CLAMP:
- if(tc.mV[0] < 0.f)
- {
- tc.mV[0] = 0.f ;
- }
- else if(tc.mV[0] > 1.f)
- {
- tc.mV[0] = 1.f;
- }
- if(tc.mV[1] < 0.f)
- {
- tc.mV[1] = 0.f ;
- }
- else if(tc.mV[1] > 1.f)
- {
- tc.mV[1] = 1.f;
- }
- break;
- case LLTexUnit::TAM_MIRROR:
- if(tc.mV[0] < 0.f)
- {
- tc.mV[0] = -tc.mV[0] ;
- }
- int_part = (S32)tc.mV[0] ;
- if(int_part & 1) //odd number
- {
- tc.mV[0] = int_part + 1 - tc.mV[0] ;
- }
- else //even number
- {
- tc.mV[0] -= int_part ;
- }
- if(tc.mV[1] < 0.f)
- {
- tc.mV[1] = -tc.mV[1] ;
- }
- int_part = (S32)tc.mV[1] ;
- if(int_part & 1) //odd number
- {
- tc.mV[1] = int_part + 1 - tc.mV[1] ;
- }
- else //even number
- {
- tc.mV[1] -= int_part ;
- }
- break;
- case LLTexUnit::TAM_WRAP:
- if(tc.mV[0] > 1.f)
- tc.mV[0] -= (S32)(tc.mV[0] - 0.00001f) ;
- else if(tc.mV[0] < -1.f)
- tc.mV[0] -= (S32)(tc.mV[0] + 0.00001f) ;
- if(tc.mV[1] > 1.f)
- tc.mV[1] -= (S32)(tc.mV[1] - 0.00001f) ;
- else if(tc.mV[1] < -1.f)
- tc.mV[1] -= (S32)(tc.mV[1] + 0.00001f) ;
- if(tc.mV[0] < 0.f)
- {
- tc.mV[0] = 1.0f + tc.mV[0] ;
- }
- if(tc.mV[1] < 0.f)
- {
- tc.mV[1] = 1.0f + tc.mV[1] ;
- }
- break;
- default:
- break;
- }
-
- tc.mV[0] = tcoord_xoffset + tcoord_xscale * tc.mV[0] ;
- tc.mV[1] = tcoord_yoffset + tcoord_yscale * tc.mV[1] ;
- }
-
- *tex_coords++ = tc;
-
- if (bump_code && mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_TEXCOORD1))
- {
- LLVector3 tangent = vf.mVertices[i].mBinormal % vf.mVertices[i].mNormal;
- LLMatrix3 tangent_to_object;
- tangent_to_object.setRows(tangent, vf.mVertices[i].mBinormal, vf.mVertices[i].mNormal);
- LLVector3 binormal = binormal_dir * tangent_to_object;
- binormal = binormal * mat_normal;
-
- if (mDrawablep->isActive())
- {
- binormal *= bump_quat;
- }
- binormal.normVec();
- tc += LLVector2( bump_s_primary_light_ray * tangent, bump_t_primary_light_ray * binormal );
-
- *tex_coords2++ = tc;
- }
- }
-
- if (rebuild_pos)
- {
- *vertices++ = vf.mVertices[i].mPosition * mat_vert;
- }
-
- if (rebuild_normal)
- {
- LLVector3 normal = vf.mVertices[i].mNormal * mat_normal;
- normal.normVec();
-
- *normals++ = normal;
- }
-
- if (rebuild_binormal)
- {
- LLVector3 binormal = vf.mVertices[i].mBinormal * mat_normal;
- binormal.normVec();
- *binormals++ = binormal;
- }
-
- if (rebuild_color)
- {
- *colors++ = color;
- }
- }
- if (rebuild_tcoord)
- {
- mTexExtents[0].setVec(0,0);
- mTexExtents[1].setVec(1,1);
- xform(mTexExtents[0], cos_ang, sin_ang, os, ot, ms, mt);
- xform(mTexExtents[1], cos_ang, sin_ang, os, ot, ms, mt);
- }
- mLastVertexBuffer = mVertexBuffer;
- mLastGeomCount = mGeomCount;
- mLastGeomIndex = mGeomIndex;
- mLastIndicesCount = mIndicesCount;
- mLastIndicesIndex = mIndicesIndex;
- return TRUE;
- }
- //check if the face has a media
- BOOL LLFace::hasMedia() const
- {
- if(mHasMedia)
- {
- return TRUE ;
- }
- if(mTexture.notNull())
- {
- return mTexture->hasParcelMedia() ; //if has a parcel media
- }
- return FALSE ; //no media.
- }
- const F32 LEAST_IMPORTANCE = 0.05f ;
- const F32 LEAST_IMPORTANCE_FOR_LARGE_IMAGE = 0.3f ;
- F32 LLFace::getTextureVirtualSize()
- {
- F32 radius;
- F32 cos_angle_to_view_dir;
- BOOL in_frustum = calcPixelArea(cos_angle_to_view_dir, radius);
- if (mPixelArea < 0.0001f || !in_frustum)
- {
- setVirtualSize(0.f) ;
- return 0.f;
- }
- //get area of circle in texture space
- LLVector2 tdim = mTexExtents[1] - mTexExtents[0];
- F32 texel_area = (tdim * 0.5f).lengthSquared()*3.14159f;
- if (texel_area <= 0)
- {
- // Probably animated, use default
- texel_area = 1.f;
- }
- //apply texel area to face area to get accurate ratio
- //face_area /= llclamp(texel_area, 1.f/64.f, 16.f);
- F32 face_area = mPixelArea / llclamp(texel_area, 0.015625f, 128.f);
- if(face_area > LLViewerTexture::sMaxSmallImageSize)
- {
- if(mImportanceToCamera < LEAST_IMPORTANCE) //if the face is not important, do not load hi-res.
- {
- static const F32 MAX_LEAST_IMPORTANCE_IMAGE_SIZE = 128.0f * 128.0f ;
- face_area = llmin(face_area * 0.5f, MAX_LEAST_IMPORTANCE_IMAGE_SIZE) ;
- }
- else if(face_area > LLViewerTexture::sMinLargeImageSize) //if is large image, shrink face_area by considering the partial overlapping.
- {
- if(mImportanceToCamera < LEAST_IMPORTANCE_FOR_LARGE_IMAGE)//if the face is not important, do not load hi-res.
- {
- face_area = LLViewerTexture::sMinLargeImageSize ;
- }
- else if(mTexture.notNull() && mTexture->isLargeImage())
- {
- face_area *= adjustPartialOverlapPixelArea(cos_angle_to_view_dir, radius );
- }
- }
- }
- setVirtualSize(face_area) ;
- return face_area;
- }
- BOOL LLFace::calcPixelArea(F32& cos_angle_to_view_dir, F32& radius)
- {
- //get area of circle around face
- LLVector3 center = getPositionAgent();
- LLVector3 size = (mExtents[1] - mExtents[0]) * 0.5f;
- LLViewerCamera* camera = LLViewerCamera::getInstance();
- F32 size_squared = size.lengthSquared() ;
- LLVector3 lookAt = center - camera->getOrigin();
- F32 dist = lookAt.normVec() ;
- //get area of circle around node
- F32 app_angle = atanf(fsqrtf(size_squared) / dist);
- radius = app_angle*LLDrawable::sCurPixelAngle;
- mPixelArea = radius*radius * 3.14159f;
- cos_angle_to_view_dir = lookAt * camera->getXAxis() ;
- //if has media, check if the face is out of the view frustum.
- if(hasMedia())
- {
- if(!camera->AABBInFrustum(center, size))
- {
- mImportanceToCamera = 0.f ;
- return false ;
- }
- if(cos_angle_to_view_dir > camera->getCosHalfFov()) //the center is within the view frustum
- {
- cos_angle_to_view_dir = 1.0f ;
- }
- else
- {
- if(dist * dist * (lookAt - camera->getXAxis()).lengthSquared() < size_squared)
- {
- cos_angle_to_view_dir = 1.0f ;
- }
- }
- }
- if(dist < mBoundingSphereRadius) //camera is very close
- {
- cos_angle_to_view_dir = 1.0f ;
- mImportanceToCamera = 1.0f ;
- }
- else
- {
- mImportanceToCamera = LLFace::calcImportanceToCamera(cos_angle_to_view_dir, dist) ;
- }
- return true ;
- }
- //the projection of the face partially overlaps with the screen
- F32 LLFace::adjustPartialOverlapPixelArea(F32 cos_angle_to_view_dir, F32 radius )
- {
- F32 screen_radius = (F32)llmax(gViewerWindow->getWindowWidthRaw(), gViewerWindow->getWindowHeightRaw()) ;
- F32 center_angle = acosf(cos_angle_to_view_dir) ;
- F32 d = center_angle * LLDrawable::sCurPixelAngle ;
- if(d + radius > screen_radius + 5.f)
- {
- //----------------------------------------------
- //calculate the intersection area of two circles
- //F32 radius_square = radius * radius ;
- //F32 d_square = d * d ;
- //F32 screen_radius_square = screen_radius * screen_radius ;
- //face_area =
- // radius_square * acosf((d_square + radius_square - screen_radius_square)/(2 * d * radius)) +
- // screen_radius_square * acosf((d_square + screen_radius_square - radius_square)/(2 * d * screen_radius)) -
- // 0.5f * sqrtf((-d + radius + screen_radius) * (d + radius - screen_radius) * (d - radius + screen_radius) * (d + radius + screen_radius)) ;
- //----------------------------------------------
- //the above calculation is too expensive
- //the below is a good estimation: bounding box of the bounding sphere:
- F32 alpha = 0.5f * (radius + screen_radius - d) / radius ;
- alpha = llclamp(alpha, 0.f, 1.f) ;
- return alpha * alpha ;
- }
- return 1.0f ;
- }
- const S8 FACE_IMPORTANCE_LEVEL = 4 ;
- const F32 FACE_IMPORTANCE_TO_CAMERA_OVER_DISTANCE[FACE_IMPORTANCE_LEVEL][2] = //{distance, importance_weight}
- {{16.1f, 1.0f}, {32.1f, 0.5f}, {48.1f, 0.2f}, {96.1f, 0.05f} } ;
- const F32 FACE_IMPORTANCE_TO_CAMERA_OVER_ANGLE[FACE_IMPORTANCE_LEVEL][2] = //{cos(angle), importance_weight}
- {{0.985f /*cos(10 degrees)*/, 1.0f}, {0.94f /*cos(20 degrees)*/, 0.8f}, {0.866f /*cos(30 degrees)*/, 0.64f}, {0.0f, 0.36f}} ;
- //static
- F32 LLFace::calcImportanceToCamera(F32 cos_angle_to_view_dir, F32 dist)
- {
- F32 importance = 0.f ;
-
- if(cos_angle_to_view_dir > LLViewerCamera::getInstance()->getCosHalfFov() &&
- dist < FACE_IMPORTANCE_TO_CAMERA_OVER_DISTANCE[FACE_IMPORTANCE_LEVEL - 1][0])
- {
- LLViewerCamera* camera = LLViewerCamera::getInstance();
- F32 camera_moving_speed = camera->getAverageSpeed() ;
- F32 camera_angular_speed = camera->getAverageAngularSpeed();
- if(camera_moving_speed > 10.0f || camera_angular_speed > 1.0f)
- {
- //if camera moves or rotates too fast, ignore the importance factor
- return 0.f ;
- }
-
- //F32 camera_relative_speed = camera_moving_speed * (lookAt * LLViewerCamera::getInstance()->getVelocityDir()) ;
-
- S32 i = 0 ;
- for(i = 0; i < FACE_IMPORTANCE_LEVEL && dist > FACE_IMPORTANCE_TO_CAMERA_OVER_DISTANCE[i][0]; ++i);
- i = llmin(i, FACE_IMPORTANCE_LEVEL - 1) ;
- F32 dist_factor = FACE_IMPORTANCE_TO_CAMERA_OVER_DISTANCE[i][1] ;
-
- for(i = 0; i < FACE_IMPORTANCE_LEVEL && cos_angle_to_view_dir < FACE_IMPORTANCE_TO_CAMERA_OVER_ANGLE[i][0] ; ++i) ;
- i = llmin(i, FACE_IMPORTANCE_LEVEL - 1) ;
- importance = dist_factor * FACE_IMPORTANCE_TO_CAMERA_OVER_ANGLE[i][1] ;
- }
- return importance ;
- }
- BOOL LLFace::verify(const U32* indices_array) const
- {
- BOOL ok = TRUE;
- if( mVertexBuffer.isNull() )
- {
- if( mGeomCount )
- {
- // This happens before teleports as faces are torn down.
- // Stop the crash in DEV-31893 with a null pointer check,
- // but present this info.
- // To clean up the log, the geometry could be cleared, or the
- // face could otherwise be marked for no ::verify.
- llinfos << "Face with no vertex buffer and " << mGeomCount << " mGeomCount" << llendl;
- }
- return TRUE;
- }
-
- // First, check whether the face data fits within the pool's range.
- if ((mGeomIndex + mGeomCount) > mVertexBuffer->getNumVerts())
- {
- ok = FALSE;
- llinfos << "Face not within pool range!" << llendl;
- }
- S32 indices_count = (S32)getIndicesCount();
-
- if (!indices_count)
- {
- return TRUE;
- }
-
- if (indices_count > LL_MAX_INDICES_COUNT)
- {
- ok = FALSE;
- llinfos << "Face has bogus indices count" << llendl;
- }
-
- #if 0
- S32 geom_start = getGeomStart();
- S32 geom_count = mGeomCount;
- const U32 *indicesp = indices_array ? indices_array + mIndicesIndex : getRawIndices();
- for (S32 i = 0; i < indices_count; i++)
- {
- S32 delta = indicesp[i] - geom_start;
- if (0 > delta)
- {
- llwarns << "Face index too low!" << llendl;
- llinfos << "i:" << i << " Index:" << indicesp[i] << " GStart: " << geom_start << llendl;
- ok = FALSE;
- }
- else if (delta >= geom_count)
- {
- llwarns << "Face index too high!" << llendl;
- llinfos << "i:" << i << " Index:" << indicesp[i] << " GEnd: " << geom_start + geom_count << llendl;
- ok = FALSE;
- }
- }
- #endif
- if (!ok)
- {
- printDebugInfo();
- }
- return ok;
- }
- void LLFace::setViewerObject(LLViewerObject* objp)
- {
- mVObjp = objp;
- }
- const LLColor4& LLFace::getRenderColor() const
- {
- if (isState(USE_FACE_COLOR))
- {
- return mFaceColor; // Face Color
- }
- else
- {
- const LLTextureEntry* tep = getTextureEntry();
- return (tep ? tep->getColor() : LLColor4::white);
- }
- }
-
- void LLFace::renderSetColor() const
- {
- if (!LLFacePool::LLOverrideFaceColor::sOverrideFaceColor)
- {
- const LLColor4* color = &(getRenderColor());
-
- glColor4fv(color->mV);
- }
- }
- S32 LLFace::pushVertices(const U16* index_array) const
- {
- if (mIndicesCount)
- {
- mVertexBuffer->drawRange(LLRender::TRIANGLES, mGeomIndex, mGeomIndex+mGeomCount-1, mIndicesCount, mIndicesIndex);
- gPipeline.addTrianglesDrawn(mIndicesCount/3);
- }
- return mIndicesCount;
- }
- const LLMatrix4& LLFace::getRenderMatrix() const
- {
- return mDrawablep->getRenderMatrix();
- }
- S32 LLFace::renderElements(const U16 *index_array) const
- {
- S32 ret = 0;
-
- if (isState(GLOBAL))
- {
- ret = pushVertices(index_array);
- }
- else
- {
- glPushMatrix();
- glMultMatrixf((float*)getRenderMatrix().mMatrix);
- ret = pushVertices(index_array);
- glPopMatrix();
- }
-
- return ret;
- }
- S32 LLFace::renderIndexed()
- {
- if(mDrawablep.isNull() || mDrawPoolp == NULL)
- {
- return 0;
- }
-
- return renderIndexed(mDrawPoolp->getVertexDataMask());
- }
- S32 LLFace::renderIndexed(U32 mask)
- {
- if (mVertexBuffer.isNull())
- {
- return 0;
- }
- mVertexBuffer->setBuffer(mask);
- U16* index_array = (U16*) mVertexBuffer->getIndicesPointer();
- return renderElements(index_array);
- }
- //============================================================================
- // From llface.inl
- S32 LLFace::getColors(LLStrider<LLColor4U> &colors)
- {
- if (!mGeomCount)
- {
- return -1;
- }
-
- // llassert(mGeomIndex >= 0);
- mVertexBuffer->getColorStrider(colors, mGeomIndex);
- return mGeomIndex;
- }
- S32 LLFace::getIndices(LLStrider<U16> &indicesp)
- {
- mVertexBuffer->getIndexStrider(indicesp, mIndicesIndex);
- llassert(indicesp[0] != indicesp[1]);
- return mIndicesIndex;
- }
- LLVector3 LLFace::getPositionAgent() const
- {
- if (mDrawablep->isStatic())
- {
- return mCenterAgent;
- }
- else
- {
- return mCenterLocal * getRenderMatrix();
- }
- }
- //
- //atlas
- //
- void LLFace::removeAtlas()
- {
- setAtlasInUse(FALSE) ;
- mAtlasInfop = NULL ;
- }
- const LLTextureAtlas* LLFace::getAtlas()const
- {
- if(mAtlasInfop)
- {
- return mAtlasInfop->getAtlas() ;
- }
- return NULL ;
- }
- const LLVector2* LLFace::getTexCoordOffset()const
- {
- if(isAtlasInUse())
- {
- return mAtlasInfop->getTexCoordOffset() ;
- }
- return NULL ;
- }
- const LLVector2* LLFace::getTexCoordScale() const
- {
- if(isAtlasInUse())
- {
- return mAtlasInfop->getTexCoordScale() ;
- }
- return NULL ;
- }
- BOOL LLFace::isAtlasInUse()const
- {
- return mUsingAtlas ;
- }
- BOOL LLFace::canUseAtlas()const
- {
- //no drawable or no spatial group, do not use atlas
- if(!mDrawablep || !mDrawablep->getSpatialGroup())
- {
- return FALSE ;
- }
- //if bump face, do not use atlas
- if(getTextureEntry() && getTextureEntry()->getBumpmap())
- {
- return FALSE ;
- }
- //if animated texture, do not use atlas
- if(isState(TEXTURE_ANIM))
- {
- return FALSE ;
- }
- return TRUE ;
- }
- void LLFace::setAtlasInUse(BOOL flag)
- {
- //no valid atlas to use.
- if(flag && (!mAtlasInfop || !mAtlasInfop->isValid()))
- {
- flag = FALSE ;
- }
- if(!flag && !mUsingAtlas)
- {
- return ;
- }
- //
- //at this stage (flag || mUsingAtlas) is always true.
- //
- //rebuild the tex coords
- if(mDrawablep)
- {
- gPipeline.markRebuild(mDrawablep, LLDrawable::REBUILD_TCOORD);
- mUsingAtlas = flag ;
- }
- else
- {
- mUsingAtlas = FALSE ;
- }
- }
- LLTextureAtlasSlot* LLFace::getAtlasInfo()
- {
- return mAtlasInfop ;
- }
- void LLFace::setAtlasInfo(LLTextureAtlasSlot* atlasp)
- {
- if(mAtlasInfop != atlasp)
- {
- if(mAtlasInfop)
- {
- //llerrs << "Atlas slot changed!" << llendl ;
- }
- mAtlasInfop = atlasp ;
- }
- }
- LLViewerTexture* LLFace::getTexture() const
- {
- if(isAtlasInUse())
- {
- return (LLViewerTexture*)mAtlasInfop->getAtlas() ;
- }
- return mTexture ;
- }
- //switch to atlas or switch back to gl texture
- //return TRUE if using atlas.
- BOOL LLFace::switchTexture()
- {
- //no valid atlas or texture
- if(!mAtlasInfop || !mAtlasInfop->isValid() || !mTexture)
- {
- return FALSE ;
- }
-
- if(mTexture->getTexelsInAtlas() >= (U32)mVSize ||
- mTexture->getTexelsInAtlas() >= mTexture->getTexelsInGLTexture())
- {
- //switch to use atlas
- //atlas resolution is qualified, use it.
- if(!mUsingAtlas)
- {
- setAtlasInUse(TRUE) ;
- }
- }
- else //if atlas not qualified.
- {
- //switch back to GL texture
- if(mUsingAtlas && mTexture->isGLTextureCreated() &&
- mTexture->getDiscardLevel() < mTexture->getDiscardLevelInAtlas())
- {
- setAtlasInUse(FALSE) ;
- }
- }
- return mUsingAtlas ;
- }