llmodelpreview.cpp

/**
 * @file llmodelpreview.cpp
 * @brief LLModelPreview class implementation
 *
 * $LicenseInfo:firstyear=2020&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2020, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"

#include "llmodelpreview.h"

#include "llmodelloader.h"
#include "lldaeloader.h"
#include "llfloatermodelpreview.h"

#include "llagent.h"
#include "llanimationstates.h"
#include "llcallbacklist.h"
#include "lldatapacker.h"
#include "lldrawable.h"
#include "llface.h"
#include "lliconctrl.h"
#include "llmatrix4a.h"
#include "llmeshrepository.h"
#include "llmeshoptimizer.h"
#include "llrender.h"
#include "llsdutil_math.h"
#include "llskinningutil.h"
#include "llstring.h"
#include "llsdserialize.h"
#include "lltoolmgr.h"
#include "llui.h"
#include "llvector4a.h"
#include "llviewercamera.h"
#include "llviewercontrol.h"
#include "llviewerobjectlist.h"
#include "llviewernetwork.h"
#include "llviewershadermgr.h"
#include "llviewertexteditor.h"
#include "llviewertexturelist.h"
#include "llvoavatar.h"
#include "pipeline.h"

// ui controls (from floater)
#include "llbutton.h"
#include "llcombobox.h"
#include "llspinctrl.h"
#include "lltabcontainer.h"
#include "lltextbox.h"

#include <boost/algorithm/string.hpp>

bool LLModelPreview::sIgnoreLoadedCallback = false;

// Extra configurability, to be exposed later in xml (LLModelPreview probably
// should become UI control at some point or get split into preview control)
static const LLColor4 PREVIEW_CANVAS_COL(0.169f, 0.169f, 0.169f, 1.f);
static const LLColor4 PREVIEW_EDGE_COL(0.4f, 0.4f, 0.4f, 1.0);
static const LLColor4 PREVIEW_BASE_COL(1.f, 1.f, 1.f, 1.f);
static const LLColor3 PREVIEW_BRIGHTNESS(0.9f, 0.9f, 0.9f);
static const F32 PREVIEW_EDGE_WIDTH(1.f);
static const LLColor4 PREVIEW_PSYH_EDGE_COL(0.f, 0.25f, 0.5f, 0.25f);
static const LLColor4 PREVIEW_PSYH_FILL_COL(0.f, 0.5f, 1.0f, 0.5f);
static const F32 PREVIEW_PSYH_EDGE_WIDTH(1.f);
static const LLColor4 PREVIEW_DEG_EDGE_COL(1.f, 0.f, 0.f, 1.f);
static const LLColor4 PREVIEW_DEG_FILL_COL(1.f, 0.f, 0.f, 0.5f);
static const F32 PREVIEW_DEG_EDGE_WIDTH(3.f);
static const F32 PREVIEW_DEG_POINT_SIZE(8.f);
static const F32 PREVIEW_ZOOM_LIMIT(10.f);
static const std::string DEFAULT_PHYSICS_MESH_NAME = "default_physics_shape";

const F32 SKIN_WEIGHT_CAMERA_DISTANCE = 16.f;

LLViewerFetchedTexture* bindMaterialDiffuseTexture(const LLImportMaterial& material)
{
    LLViewerFetchedTexture *texture = LLViewerTextureManager::getFetchedTexture(material.getDiffuseMap(), FTT_DEFAULT, TRUE, LLGLTexture::BOOST_PREVIEW);

    if (texture)
    {
        if (texture->getDiscardLevel() > -1)
        {
            gGL.getTexUnit(0)->bind(texture, true);
            return texture;
        }
    }

    return NULL;
}

std::string stripSuffix(std::string name)
{
    if ((name.find("_LOD") != -1) || (name.find("_PHYS") != -1))
    {
        return name.substr(0, name.rfind('_'));
    }
    return name;
}

std::string getLodSuffix(S32 lod)
{
    std::string suffix;
    switch (lod)
    {
    case LLModel::LOD_IMPOSTOR: suffix = "_LOD0"; break;
    case LLModel::LOD_LOW:      suffix = "_LOD1"; break;
    case LLModel::LOD_MEDIUM:   suffix = "_LOD2"; break;
    case LLModel::LOD_PHYSICS:  suffix = "_PHYS"; break;
    case LLModel::LOD_HIGH:                       break;
    }
    return suffix;
}

void FindModel(LLModelLoader::scene& scene, const std::string& name_to_match, LLModel*& baseModelOut, LLMatrix4& matOut)
{
    LLModelLoader::scene::iterator base_iter = scene.begin();
    bool found = false;
    while (!found && (base_iter != scene.end()))
    {
        matOut = base_iter->first;

        LLModelLoader::model_instance_list::iterator base_instance_iter = base_iter->second.begin();
        while (!found && (base_instance_iter != base_iter->second.end()))
        {
            LLModelInstance& base_instance = *base_instance_iter++;
            LLModel* base_model = base_instance.mModel;

            if (base_model && (base_model->mLabel == name_to_match))
            {
                baseModelOut = base_model;
                return;
            }
        }
        base_iter++;
    }
}

//-----------------------------------------------------------------------------
// LLModelPreview
//-----------------------------------------------------------------------------

LLModelPreview::LLModelPreview(S32 width, S32 height, LLFloater* fmp)
    : LLViewerDynamicTexture(width, height, 3, ORDER_MIDDLE, FALSE), LLMutex()
    , mLodsQuery()
    , mLodsWithParsingError()
    , mPelvisZOffset(0.0f)
    , mLegacyRigFlags(U32_MAX)
    , mRigValidJointUpload(false)
    , mPhysicsSearchLOD(LLModel::LOD_PHYSICS)
    , mResetJoints(false)
    , mModelNoErrors(true)
    , mLastJointUpdate(false)
    , mFirstSkinUpdate(true)
    , mHasDegenerate(false)
    , mImporterDebug(LLCachedControl<bool>(gSavedSettings, "ImporterDebug", false))
{
    mNeedsUpdate = TRUE;
    mCameraDistance = 0.f;
    mCameraYaw = 0.f;
    mCameraPitch = 0.f;
    mCameraZoom = 1.f;
    mTextureName = 0;
    mPreviewLOD = 0;
    mModelLoader = NULL;
    mMaxTriangleLimit = 0;
    mDirty = false;
    mGenLOD = false;
    mLoading = false;
    mLookUpLodFiles = false;
    mLoadState = LLModelLoader::STARTING;
    mGroup = 0;
    mLODFrozen = false;

    for (U32 i = 0; i < LLModel::NUM_LODS; ++i)
    {
        mRequestedTriangleCount[i] = 0;
        mRequestedCreaseAngle[i] = -1.f;
        mRequestedLoDMode[i] = 0;
        mRequestedErrorThreshold[i] = 0.f;
    }

    mViewOption["show_textures"] = false;