OsmAnd/OsmAnd/jni/osmand/rendering.cpp

#include <jni.h>
#include <android/log.h>
#include <android/bitmap.h>
#include <dlfcn.h>

#include <math.h>
#include <stdio.h>
#include <vector>
#include <set>
#include <hash_map>
#include <time.h>

#include <SkTypes.h>
#include <SkBitmap.h>
#include <SkColorFilter.h>
#include <SkShader.h>
#include <SkBitmapProcShader.h>
#include <SkPathEffect.h>
#include <SkBlurDrawLooper.h>
#include <SkDashPathEffect.h>
#include <SkCanvas.h>
#include <SkPaint.h>
#include <SkPath.h>

#include "common.h"
#include "renderRules.h"
#include "textdraw.cpp"
#include "mapObjects.h"

jclass jclass_JUnidecode;
jmethodID jmethod_JUnidecode_unidecode;

void calcPoint(MapDataObject* mObj, jint ind, RenderingContext* rc)
{
    rc->pointCount++;

    float tx = mObj->points.at(ind).first/ (rc->tileDivisor);
    float ty = mObj->points.at(ind).second / (rc->tileDivisor);

    float dTileX = tx - rc->leftX;
    float dTileY = ty - rc->topY;
    rc->calcX = rc->cosRotateTileSize * dTileX - rc->sinRotateTileSize * dTileY;
    rc->calcY = rc->sinRotateTileSize * dTileX + rc->cosRotateTileSize * dTileY;

    if (rc->calcX >= 0 && rc->calcX < rc->width && rc->calcY >= 0 && rc->calcY < rc->height)
        rc->pointInsideCount++;
}

void calcMultipolygonPoint(int xt, int yt, jint ind, jint b, RenderingContext* rc)
{
    rc->pointCount++;
    float tx = xt/ (rc->tileDivisor);
    float ty = yt / (rc->tileDivisor);

    float dTileX = tx - rc->leftX;
    float dTileY = ty - rc->topY;
    rc->calcX = rc->cosRotateTileSize * dTileX - rc->sinRotateTileSize * dTileY;
    rc->calcY = rc->sinRotateTileSize * dTileX + rc->cosRotateTileSize * dTileY;

    if (rc->calcX >= 0 && rc->calcX < rc->width && rc->calcY >= 0 && rc->calcY < rc->height)
        rc->pointInsideCount++;
}

std::hash_map<std::string, SkPathEffect*> pathEffects;
SkPathEffect* getDashEffect(std::string input)
{
    if(pathEffects.find(input) != pathEffects.end())
        return pathEffects[input];

    const char* chars = input.c_str();
    int i = 0;
    char fval[10];
    int flength = 0;
    float primFloats[20];
    int floatLen = 0;
    for(;;i++)
    {
        if(chars[i] == 0)
        {
            if(flength > 0)	{ fval[flength] = 0;
            primFloats[floatLen++] = atof(fval); flength = 0;}
            break;
        }
        else
        {
            if(chars[i] != '_')
            {
                // suppose it is a character
                fval[flength++] = chars[i];
            }
            else
            {
                if(flength > 0)
                {
                    fval[flength] = 0;
                    primFloats[floatLen++] = atof(fval); flength = 0;
                }
            }
        }
    }
    SkPathEffect* r = new SkDashPathEffect(primFloats, floatLen, 0);
    pathEffects[input] = r;
    return r;
}

int updatePaint(RenderingRuleSearchRequest* req, SkPaint* paint, int ind, int area, RenderingContext* rc)
{
    RenderingRuleProperty* rColor;
    RenderingRuleProperty* rStrokeW;
    RenderingRuleProperty* rCap;
    RenderingRuleProperty* rPathEff;
    if (ind == 0)
    {
        rColor = req->props()->R_COLOR;
        rStrokeW = req->props()->R_STROKE_WIDTH;
        rCap = req->props()->R_CAP;
        rPathEff = req->props()->R_PATH_EFFECT;
    }
    else if (ind == 1)
    {
        rColor = req->props()->R_COLOR_2;
        rStrokeW = req->props()->R_STROKE_WIDTH_2;
        rCap = req->props()->R_CAP_2;
        rPathEff = req->props()->R_PATH_EFFECT_2;
    }
    else
    {
        rColor = req->props()->R_COLOR_3;
        rStrokeW = req->props()->R_STROKE_WIDTH_3;
        rCap = req->props()->R_CAP_3;
        rPathEff = req->props()->R_PATH_EFFECT_3;
    }
    paint->setColorFilter(NULL);
    paint->setShader(NULL);
    paint->setLooper(NULL);
    if (area)
    {
        paint->setStyle(SkPaint::kStrokeAndFill_Style);
        paint->setStrokeWidth(0);
    }
    else
    {
        float stroke = req->getFloatPropertyValue(rStrokeW);
        if (!(stroke > 0))
            return 0;

        paint->setStyle(SkPaint::kStroke_Style);
        paint->setStrokeWidth(stroke);
        std::string cap = req->getStringPropertyValue(rCap);
        std::string pathEff = req->getStringPropertyValue(rPathEff);

        if (cap == "BUTT" || cap == "")
            paint->setStrokeCap(SkPaint::kButt_Cap);
        else if (cap == "ROUND")
            paint->setStrokeCap(SkPaint::kRound_Cap);
        else if (cap == "SQUARE")
            paint->setStrokeCap(SkPaint::kSquare_Cap);
        else
            paint->setStrokeCap(SkPaint::kButt_Cap);

        if (pathEff.size() > 0)
        {
            SkPathEffect* p = getDashEffect(pathEff);
            paint->setPathEffect(p);
        }
        else
        {
            paint->setPathEffect(NULL);
        }
    }

    int color = req->getIntPropertyValue(rColor);
    paint->setColor(color);

    if (ind == 0)
    {
        std::string shader = req->getStringPropertyValue(req->props()->R_SHADER);
        if (shader.size() > 0)
        {
            SkBitmap* bmp = getCachedBitmap(rc, shader);
            if (bmp != NULL)
                paint->setShader(new SkBitmapProcShader(*bmp, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode))->unref();
        }
    }

    // do not check shadow color here
    if (rc->shadowRenderingMode == 1 && ind == 0)
    {
        int shadowColor = req->getIntPropertyValue(req->props()->R_SHADOW_COLOR);
        int shadowLayer = req->getIntPropertyValue(req->props()->R_SHADOW_RADIUS);
        if (shadowColor == 0)
            shadowLayer = 0;

        if (shadowLayer > 0)
            paint->setLooper(new SkBlurDrawLooper(shadowLayer, 0, 0, shadowColor))->unref();
    }
    return 1;
}

void drawPointText(RenderingRuleSearchRequest* req, RenderingContext* rc, std::string tag, std::string value, float xText, float yText, std::string name, SkPath* path)
{
    if(rc->useEnglishNames)
    {
        jstring n = getGlobalJniEnv()->NewStringUTF(name.c_str());
        name = getString((jstring) getGlobalJniEnv()->CallStaticObjectMethod(jclass_JUnidecode, jmethod_JUnidecode_unidecode, n));
        getGlobalJniEnv()->DeleteLocalRef(n);
    }

    if (name.at(0) == REF_CHAR)
    {
        std::string ref = name.substr(1);
        name = "";
        for (uint k = 0; k < ref.length(); k++)
        {
            if (ref.at(k) == REF_CHAR)
            {
                if (k < ref.length() - 1) 
                {
                    name = ref.substr(k + 1);
                }
                ref = ref.substr(0, k);
                break;
            }
        }
        if (ref.length() > 0)
        {
            req->setInitialTagValueZoom(tag, value, rc->zoom);
            req->setIntFilter(req->props()->R_TEXT_LENGTH, ref.length());
            req->setBooleanFilter(req->props()->R_REF, true);
            if (req->searchRule(RenderingRulesStorage::TEXT_RULES))
            {
                if (req->getIntPropertyValue(req->props()->R_TEXT_SIZE) > 0)
                {
                    TextDrawInfo* text = new TextDrawInfo(ref);
                    fillTextProperties(text, req, xText, yText);
                    if (path != NULL)
                        text->path = new SkPath(*path);

                    rc->textToDraw.push_back(text);
                }
            }
        }
    }

    req->setInitialTagValueZoom(tag, value, rc->zoom);
    req->setIntFilter(req->props()->R_TEXT_LENGTH, name.length());
    req->setBooleanFilter(req->props()->R_REF, false);
    if (req->searchRule(RenderingRulesStorage::TEXT_RULES) &&
        req->getIntPropertyValue(req->props()->R_TEXT_SIZE) > 0)
    {
        TextDrawInfo* info = new TextDrawInfo(name);
        info->drawOnPath = (path != NULL) && (req->getIntPropertyValue(req->props()->R_TEXT_ON_PATH, 0) > 0);
        if (path != NULL)
            info->path = new SkPath(*path);

        fillTextProperties(info, req, xText, yText);
        rc->textToDraw.push_back(info);
    }
}

void drawPolylineShadow(SkCanvas* cv, SkPaint* paint, RenderingContext* rc, SkPath* path, int shadowColor, int shadowRadius)
{
    // blurred shadows
    if (rc->shadowRenderingMode == 2 && shadowRadius > 0) {
        // simply draw shadow? difference from option 3 ?
        // paint->setColor(0xffffffff);
        paint->setLooper(new SkBlurDrawLooper(shadowRadius, 0, 0, shadowColor))->unref();
        PROFILE_NATIVE_OPERATION(rc, cv->drawPath(*path, *paint));
    }

    // option shadow = 3 with solid border
    if (rc->shadowRenderingMode == 3 && shadowRadius > 0) {
        paint->setLooper(NULL);
        paint->setStrokeWidth(paint->getStrokeWidth() + shadowRadius * 2);
        //		paint->setColor(0xffbababa);
        paint->setColorFilter(SkColorFilter::CreateModeFilter(shadowColor, SkXfermode::kSrcIn_Mode))->unref();
        //		paint->setColor(shadowColor);
        PROFILE_NATIVE_OPERATION(rc, cv->drawPath(*path, *paint));
    }
}

std::vector<SkPaint> oneWayPaints;
SkPaint* oneWayPaint(){
    SkPaint* oneWay = new SkPaint;
    oneWay->setStyle(SkPaint::kStroke_Style);
    oneWay->setColor(0xff6c70d5);
    oneWay->setAntiAlias(true);
    return oneWay;
}
void drawOneWayPaints(RenderingContext* rc, SkCanvas* cv, SkPath* p) {
    if (oneWayPaints.size() == 0) {
        SkPathEffect* arrowDashEffect1 = new SkDashPathEffect((float []){ 0, 12, 10, 152 }, 4, 0);
        SkPathEffect* arrowDashEffect2 = new SkDashPathEffect((float[]){ 0, 12, 9, 153 }, 4, 1);
        SkPathEffect* arrowDashEffect3 = new SkDashPathEffect((float[]){ 0, 18, 2, 154 }, 4, 1);
        SkPathEffect* arrowDashEffect4 = new SkDashPathEffect((float[]){ 0, 18, 1, 155 }, 4, 1);

        SkPaint* p = oneWayPaint();
        p->setStrokeWidth(1);
        p->setPathEffect(arrowDashEffect1)->unref();
        oneWayPaints.push_back(*p);

        p = oneWayPaint();
        p->setStrokeWidth(2);
        p->setPathEffect(arrowDashEffect2)->unref();
        oneWayPaints.push_back(*p);

        p = oneWayPaint();
        p->setStrokeWidth(3);
        p->setPathEffect(arrowDashEffect3)->unref();
        oneWayPaints.push_back(*p);

        p = oneWayPaint();
        p->setStrokeWidth(4);
        p->setPathEffect(arrowDashEffect4)->unref();
        oneWayPaints.push_back(*p);
    }

    for (size_t i = 0; i < oneWayPaints.size(); i++) {
        PROFILE_NATIVE_OPERATION(rc, cv->drawPath(*p, oneWayPaints.at(i)));
    }
}

bool isOneWayWay(int highwayAttributes) {
    return (highwayAttributes & 1) > 0;
}

bool isRoundabout(int highwayAttributes) {
    return ((highwayAttributes >> 2) & 1) > 0;
}

void drawPolyline(MapDataObject* mObj, RenderingRuleSearchRequest* req, SkCanvas* cv, SkPaint* paint,
    RenderingContext* rc, std::pair<std::string, std::string> pair, int layer, int drawOnlyShadow) {
        jint length = mObj->points.size();
        if (length < 2) {
            return;
        }
        std::string tag = pair.first;
        std::string value = pair.second;

        req->setInitialTagValueZoom(tag, value, rc->zoom);
        req->setIntFilter(req->props()->R_LAYER, layer);
        bool oneway = false;
        if (rc->zoom >= 16 && "highway" == pair.first && isOneWayWay(mObj->highwayAttributes)) {
            oneway = true;
        }

        bool rendered = req->searchRule(2);
        if (!rendered || !updatePaint(req, paint, 0, 0, rc)) {
            return;
        }

        rc->visible++;
        SkPath path;
        int i = 0;
        SkPoint middlePoint;
        int middle = length / 2;
        for (; i < length; i++) {
            calcPoint(mObj, i, rc);
            if (i == 0) {
                path.moveTo(rc->calcX, rc->calcY);
            } else {
                if(i == middle){
                    middlePoint.set(rc->calcX, rc->calcY);
                }
                path.lineTo(rc->calcX, rc->calcY);
            }
        }
        if (i > 0) {
            if (drawOnlyShadow) {
                int shadowColor = req->getIntPropertyValue(req->props()->R_SHADOW_COLOR);
                int shadowRadius = req->getIntPropertyValue(req->props()->R_SHADOW_RADIUS);
                drawPolylineShadow(cv, paint, rc, &path, shadowColor, shadowRadius);
            } else {
                PROFILE_NATIVE_OPERATION(rc, cv->drawPath(path, *paint));
                if (updatePaint(req, paint, 1, 0, rc)) {
                    PROFILE_NATIVE_OPERATION(rc, cv->drawPath(path, *paint));
                    if (updatePaint(req, paint, 2, 0, rc)) {
                        PROFILE_NATIVE_OPERATION(rc, cv->drawPath(path, *paint));
                    }
                }
                if (oneway && !drawOnlyShadow) {
                    drawOneWayPaints(rc, cv, &path);
                }
                if (!drawOnlyShadow && mObj->name.length() > 0) {
                    drawPointText(req, rc,pair.first, pair.second, middlePoint.fX, middlePoint.fY, mObj->name,
                        &path);
                }
            }
        }
}

void drawMultiPolygon(MultiPolygonObject* mapObject,RenderingRuleSearchRequest* req, SkCanvas* cv, SkPaint* paint,
    RenderingContext* rc) {
        if (req == NULL) {
            return;
        }
        req->setInitialTagValueZoom(mapObject->tag, mapObject->value, rc->zoom);
        bool rendered = req->searchRule(3);

        if (!rendered || !updatePaint(req, paint, 0, 1, rc)) {
            return;
        }

        int boundsCount = mapObject->points.size();
        rc->visible++;
        SkPath path;

        for (int i = 0; i < boundsCount; i++) {
            int cnt = mapObject->points.at(i).size();
            float xText = 0;
            float yText = 0;
            for (int j = 0; j < cnt; j++) {
                std::pair<int,int> pair = mapObject->points.at(i).at(j);
                calcMultipolygonPoint(pair.first, pair.second, j, i, rc);
                xText += rc->calcX;
                yText += rc->calcY;
                if (j == 0) {
                    path.moveTo(rc->calcX, rc->calcY);
                } else {
                    path.lineTo(rc->calcX, rc->calcY);
                }
            }
            if (cnt > 0) {
                std::string name = mapObject->names.at(i);
                if (name.length() > 0) {
                    drawPointText(req, rc, mapObject->tag, mapObject->value, xText / cnt, yText / cnt, name, NULL);
                }
            }
        }

        PROFILE_NATIVE_OPERATION(rc, cv->drawPath(path, *paint));
        // for test purpose
        //	paint->setStyle(SkPaint::kStroke_Style);
        //	paint->setStrokeWidth(2);
        //	paint->setPathEffect(NULL);
        //	paint->setColor(BLACK_COLOR);
        //	PROFILE_NATIVE_OPERATION(rc, cv->drawPath(path, *paint));
        if (updatePaint(req, paint, 1, 0, rc)) {
            PROFILE_NATIVE_OPERATION(rc, cv->drawPath(path, *paint));
        }
}


void drawPolygon(MapDataObject* mObj, RenderingRuleSearchRequest* req, SkCanvas* cv, SkPaint* paint,
    RenderingContext* rc, std::pair<std::string, std::string> pair) {
        jint length = mObj->points.size();
        if (length <= 2) {
            return;
        }
        std::string tag = pair.first;
        std::string value = pair.second;

        req->setInitialTagValueZoom(tag, value, rc->zoom);
        bool rendered = req->searchRule(3);

        float xText = 0;
        float yText = 0;
        if (!rendered || !updatePaint(req, paint, 0, 1, rc)) {
            return;
        }

        rc->visible++;
        SkPath path;
        int i = 0;
        for (; i < length; i++) {
            calcPoint(mObj, i, rc);
            if (i == 0) {
                path.moveTo(rc->calcX, rc->calcY);
            } else {
                path.lineTo(rc->calcX, rc->calcY);
            }
            xText += rc->calcX;
            yText += rc->calcY;
        }

        PROFILE_NATIVE_OPERATION(rc, cv->drawPath(path, *paint));
        if (updatePaint(req, paint, 1, 0, rc)) {
            PROFILE_NATIVE_OPERATION(rc, cv->drawPath(path, *paint));
        }
        std::string name = mObj->name;
        if (name.length() > 0) {
            drawPointText(req, rc, tag, value, xText / length, yText / length, name, NULL);
        }
}

void drawPoint(MapDataObject* mObj,	RenderingRuleSearchRequest* req, SkCanvas* cv, SkPaint* paint,
    RenderingContext* rc, std::pair<std::string, std::string>  pair, int renderText)
{
    std::string tag = pair.first;
    std::string value = pair.second;

    req->setInitialTagValueZoom(tag, value, rc->zoom);
    req->searchRule(1);
    std::string resId = req->getStringPropertyValue(req-> props()-> R_ICON);
    SkBitmap* bmp = getCachedBitmap(rc, resId);
    std::string name;
    if (renderText)
        name = mObj->name;

    if (!bmp && name.length() == 0)
        return;

    jint length = mObj->points.size();
    rc->visible++;
    float px = 0;
    float py = 0;
    int i = 0;
    for (; i < length; i++) {
        calcPoint(mObj, i, rc);
        px += rc->calcX;
        py += rc->calcY;
    }
    if (length > 1) {
        px /= length;
        py /= length;
    }

    if (bmp != NULL) {
        IconDrawInfo ico;
        ico.x = px;
        ico.y = py;
        ico.bmp = bmp;
        rc->iconsToDraw.push_back(ico);
    }
    if (name.length() > 0) {
        drawPointText(req, rc, tag, value, px, py, name, NULL);
    }

}

void drawObject(RenderingContext* rc, BaseMapDataObject* mapObject, SkCanvas* cv, RenderingRuleSearchRequest* req,
    SkPaint* paint, int l, int renderText, int drawOnlyShadow) {
        rc->allObjects++;
        if (mapObject-> type == BaseMapDataObject::MULTI_POLYGON) {
            if (!drawOnlyShadow) {
                drawMultiPolygon((MultiPolygonObject*) mapObject, req, cv, paint, rc);
            }
            return;
        }
        MapDataObject* mObj = (MapDataObject*) mapObject;

        jint mainType = mObj->types.at(l);
        int t = mainType & 3;

        std::pair<std::string, std::string> pair = mObj->tagValues.at(l);
        if (t == 1 && !drawOnlyShadow) {
            // point
            drawPoint(mObj, req, cv, paint, rc, pair, renderText);
        } else if (t == 2) {
            // polyline
            int layer = getNegativeWayLayer(mainType);
            //			__android_log_print(ANDROID_LOG_WARN, LOG_TAG, "Draw polyline");
            drawPolyline(mObj, req, cv, paint, rc, pair, layer, drawOnlyShadow);
        } else if (t == 3 && !drawOnlyShadow) {
            // polygon
            drawPolygon(mObj, req, cv, paint, rc, pair);
        }
}


void drawIconsOverCanvas(RenderingContext* rc, SkCanvas* canvas)
{
    int skewConstant = (int) getDensityValue(rc, 16);
    int iconsW = rc -> width / skewConstant;
    int iconsH = rc -> height / skewConstant;
    int len = (iconsW * iconsH) / 32;
    int alreadyDrawnIcons[len];
    memset(alreadyDrawnIcons, 0, sizeof(int)*len);
    size_t ji = 0;
    SkPaint p;
    p.setStyle(SkPaint::kStroke_Style);
    for(;ji< rc->iconsToDraw.size(); ji++)
    {
        IconDrawInfo icon = rc->iconsToDraw.at(ji);
        if (icon.y >= 0 && icon.y < rc -> height && icon.x >= 0 && icon.x < rc -> width &&
            icon.bmp != NULL) {
                int z = (((int) icon.x / skewConstant) + ((int) icon.y / skewConstant) * iconsW);
                int i = z / 32;
                if (i >= len) {
                    continue;
                }
                int ind = alreadyDrawnIcons[i];
                int b = z % 32;
                // check bit b if it is set
                if (((ind >> b) & 1) == 0) {
                    alreadyDrawnIcons[i] = ind | (1 << b);
                    SkBitmap* ico = icon.bmp;
                    PROFILE_NATIVE_OPERATION(rc, canvas->drawBitmap(*ico, icon.x - ico->width() / 2, icon.y - ico->height() / 2, &p));
                }
        }
        if(rc->interrupted()){
            return;
        }
    }
}

std::hash_map<int, std::vector<int> > sortObjectsByProperOrder(std::vector <BaseMapDataObject* > mapDataObjects,
    RenderingRuleSearchRequest* req, RenderingContext* rc) {
        std::hash_map<int, std::vector<int> > orderMap;
        if (req != NULL) {
            req->clearState();
            const size_t size = mapDataObjects.size();
            size_t i = 0;
            for (; i < size; i++) {
                uint sh = i << 8;
                BaseMapDataObject* obj = mapDataObjects.at(i);
                if (obj->type == BaseMapDataObject::MULTI_POLYGON) {
                    MultiPolygonObject* mobj = (MultiPolygonObject*) obj;

                    req->setTagValueZoomLayer(mobj->tag, mobj->value, rc->zoom, mobj->layer);
                    req->setIntFilter(req->props()->R_ORDER_TYPE, RenderingRulesStorage::POLYGON_RULES);
                    if (req->searchRule(RenderingRulesStorage::ORDER_RULES)) {
                        int order = req->getIntPropertyValue(req->props()->R_ORDER);
                        orderMap[order].push_back(sh);
                        if (req->getIntPropertyValue(req->props()->R_SHADOW_LEVEL) > 0) {
                            rc->shadowLevelMin = std::min(rc->shadowLevelMin, order);
                            rc->shadowLevelMax = std::max(rc->shadowLevelMax, order);
                            req->clearIntvalue(req->props()->R_SHADOW_LEVEL);
                        }
                    }
                } else {
                    MapDataObject* mobj = (MapDataObject*) obj;
                    size_t sizeTypes = mobj->types.size();
                    size_t j = 0;
                    for (; j < sizeTypes; j++) {
                        int wholeType = mobj->types.at(j);
                        int mask = wholeType & 3;
                        int layer = 0;
                        if (mask != 1) {
                            layer = getNegativeWayLayer(wholeType);
                        }
                        std::pair<std::string, std::string> pair = mobj->tagValues.at(j);
                        req->setTagValueZoomLayer(pair.first, pair.second, rc->zoom, layer);
                        req->setIntFilter(req->props()->R_ORDER_TYPE, mask);
                        if (req->searchRule(RenderingRulesStorage::ORDER_RULES)) {
                            int order = req->getIntPropertyValue(req->props()->R_ORDER);
                            orderMap[order].push_back(sh + j);
                            if (req->getIntPropertyValue(req->props()->R_SHADOW_LEVEL) > 0) {
                                rc->shadowLevelMin = std::min(rc->shadowLevelMin, order);
                                rc->shadowLevelMax = std::max(rc->shadowLevelMax, order);
                                req->clearIntvalue(req->props()->R_SHADOW_LEVEL);
                            }
                        }
                    }

                }
            }
        }
        return orderMap;
}

void doRendering(std::vector <BaseMapDataObject* > mapDataObjects, SkCanvas* canvas, SkPaint* paint,
    RenderingRuleSearchRequest* req, RenderingContext* rc) {
        // put in order map
        std::hash_map<int, std::vector<int> > orderMap = sortObjectsByProperOrder(mapDataObjects, req, rc);
        std::set<int> keys;
        std::hash_map<int, std::vector<int> >::iterator it = orderMap.begin();
        while(it != orderMap.end())
        {
            keys.insert(it->first);
            it++;
        }
        bool shadowDrawn = false;

        for (std::set<int>::iterator ks = keys.begin(); ks != keys.end() ; ks++) {
            if (!shadowDrawn && *ks >= rc->shadowLevelMin && *ks <= rc->shadowLevelMax &&
                rc->shadowRenderingMode > 1) {
                    for (std::set<int>::iterator ki = ks; ki != keys.end() ; ki++) {
                        if (*ki > rc->shadowLevelMax || rc->interrupted()) {
                            break;
                        }
                        std::vector<int> list = orderMap[*ki];
                        for (std::vector<int>::iterator ls = list.begin(); ls != list.end(); ls++) {
                            int i = *ls;
                            int ind = i >> 8;
                            int l = i & 0xff;
                            BaseMapDataObject* mapObject = mapDataObjects.at(ind);

                            // show text only for main type
                            drawObject(rc, mapObject, canvas, req, paint, l, l == 0, true);
                        }
                    }
                    shadowDrawn = true;
            }

            std::vector<int> list = orderMap[*ks];
            for (std::vector<int>::iterator ls = list.begin(); ls != list.end(); ls++) {
                int i = *ls;
                int ind = i >> 8;
                int l = i & 0xff;

                BaseMapDataObject* mapObject = mapDataObjects.at(ind);
                // show text only for main type
                drawObject(rc, mapObject, canvas, req, paint, l, l == 0, false);
            }
            rc->lastRenderedKey = *ks;
            if (rc->interrupted()) {
                return;
            }

        }

        drawIconsOverCanvas(rc, canvas);

        rc->textRendering.start();
        drawTextOverCanvas(rc, canvas);
        rc->textRendering.pause();
}

void loadJniRendering()
{
    jclass_JUnidecode = findClass("net/sf/junidecode/Junidecode");
    jmethod_JUnidecode_unidecode = getGlobalJniEnv()->GetStaticMethodID(jclass_JUnidecode, "unidecode", "(Ljava/lang/String;)Ljava/lang/String;");
}

extern "C" JNIEXPORT jobject JNICALL Java_net_osmand_plus_render_NativeOsmandLibrary_generateRendering_1Direct( JNIEnv* ienv, jobject obj,
    jobject renderingContext, jint searchResult,
    jobject targetBitmap, 
    jboolean useEnglishNames, jobject renderingRuleSearchRequest, jint defaultColor) {
        setGlobalJniEnv(ienv);

        // libJniGraphics interface
        typedef int (*PTR_AndroidBitmap_getInfo)(JNIEnv*, jobject, AndroidBitmapInfo*);
        typedef int (*PTR_AndroidBitmap_lockPixels)(JNIEnv*, jobject, void**);
        typedef int (*PTR_AndroidBitmap_unlockPixels)(JNIEnv*, jobject);
        static PTR_AndroidBitmap_getInfo dl_AndroidBitmap_getInfo = 0;
        static PTR_AndroidBitmap_lockPixels dl_AndroidBitmap_lockPixels = 0;
        static PTR_AndroidBitmap_unlockPixels dl_AndroidBitmap_unlockPixels = 0;
        static void* module_libjnigraphics = 0;

        if(!module_libjnigraphics)
        {
            module_libjnigraphics = dlopen("jnigraphics", /*RTLD_NOLOAD*/0x0004);
            if(!module_libjnigraphics) {
                __android_log_print(ANDROID_LOG_WARN, LOG_TAG, "jnigraphics was not found in loaded libraries");
                module_libjnigraphics = dlopen("jnigraphics", RTLD_NOW);
            }
            if(!module_libjnigraphics) {
                __android_log_print(ANDROID_LOG_WARN, LOG_TAG, "jnigraphics was not loaded in default location");
                module_libjnigraphics = dlopen("/system/lib/libjnigraphics.so", RTLD_NOW);
            }
            if(!module_libjnigraphics)
            {
                __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "Failed to load jnigraphics via dlopen, will going to crash");
                return NULL;
            }
            dl_AndroidBitmap_getInfo = (PTR_AndroidBitmap_getInfo)dlsym(module_libjnigraphics, "AndroidBitmap_getInfo");
            dl_AndroidBitmap_lockPixels = (PTR_AndroidBitmap_lockPixels)dlsym(module_libjnigraphics, "AndroidBitmap_lockPixels");
            dl_AndroidBitmap_unlockPixels = (PTR_AndroidBitmap_unlockPixels)dlsym(module_libjnigraphics, "AndroidBitmap_unlockPixels");
        }


        // Gain information about bitmap
        AndroidBitmapInfo bitmapInfo;
        if(dl_AndroidBitmap_getInfo(getGlobalJniEnv(), targetBitmap, &bitmapInfo) != ANDROID_BITMAP_RESUT_SUCCESS)
            __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "Failed to execute AndroidBitmap_getInfo");

        __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Creating SkBitmap in native w:%d h:%d s:%d f:%d!", bitmapInfo.width, bitmapInfo.height, bitmapInfo.stride, bitmapInfo.format);

        SkBitmap* bitmap = new SkBitmap();
        if(bitmapInfo.format == ANDROID_BITMAP_FORMAT_RGBA_8888) {
            int rowBytes = bitmapInfo.stride;
            __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Row bytes for RGBA_8888 is %d", rowBytes);
            bitmap->setConfig(SkBitmap::kARGB_8888_Config, bitmapInfo.width, bitmapInfo.height, rowBytes);
        } else if(bitmapInfo.format == ANDROID_BITMAP_FORMAT_RGB_565) {
            int rowBytes = bitmapInfo.stride;
            __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Row bytes for RGB_565 is %d", rowBytes);
            bitmap->setConfig(SkBitmap::kRGB_565_Config, bitmapInfo.width, bitmapInfo.height, rowBytes);
        } else {
            __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "Unknown target bitmap format");
        }

        void* lockedBitmapData = NULL;
        if(dl_AndroidBitmap_lockPixels(getGlobalJniEnv(), targetBitmap, &lockedBitmapData) != ANDROID_BITMAP_RESUT_SUCCESS || !lockedBitmapData) {
            __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "Failed to execute AndroidBitmap_lockPixels");
        }
        __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Locked %d bytes at %p", bitmap->getSize(), lockedBitmapData);

        bitmap->setPixels(lockedBitmapData);

        SkCanvas* canvas = new SkCanvas(*bitmap);
        canvas->drawColor(defaultColor);

        SkPaint* paint = new SkPaint;
        paint->setAntiAlias(true);
        __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Initializing rendering");
        ElapsedTimer initObjects;
        initObjects.start();

        RenderingRuleSearchRequest* req = initSearchRequest(renderingRuleSearchRequest);
        RenderingContext rc;
        pullFromJavaRenderingContext(renderingContext, &rc);
        rc.useEnglishNames = useEnglishNames;
        SearchResult* result = ((SearchResult*) searchResult);
        //    std::vector <BaseMapDataObject* > mapDataObjects = marshalObjects(binaryMapDataObjects);

        __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Rendering image");
        initObjects.pause();


        // Main part do rendering
        rc.nativeOperations.start();
        if(result != NULL) {
            doRendering(result->result, canvas, paint, req, &rc);
        }
        rc.nativeOperations.pause();

        pushToJavaRenderingContext(renderingContext, &rc);
        __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "End Rendering image");
        if(dl_AndroidBitmap_unlockPixels(ienv, targetBitmap) != ANDROID_BITMAP_RESUT_SUCCESS) {
            __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "Failed to execute AndroidBitmap_unlockPixels");
        }

        // delete  variables
        delete paint;
        delete canvas;
        delete req;
        delete bitmap;
        //    deleteObjects(mapDataObjects);

        jclass resultClass = findClass("net/osmand/plus/render/NativeOsmandLibrary$RenderingGenerationResult");

        jmethodID resultClassCtorId = getGlobalJniEnv()->GetMethodID(resultClass, "<init>", "(Ljava/nio/ByteBuffer;)V");

#ifdef DEBUG_NAT_OPERATIONS
        __android_log_print(ANDROID_LOG_INFO, LOG_TAG,"Native ok (init %d, native op %d) ", initObjects.getElapsedTime(), rc.nativeOperations.getElapsedTime());
#else
        __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Native ok (init %d, rendering %d) ", initObjects.getElapsedTime(), rc.nativeOperations.getElapsedTime());
#endif

        /* Construct a result object */
        jobject resultObject = getGlobalJniEnv()->NewObject(resultClass, resultClassCtorId, NULL);

        return resultObject;
}

void* bitmapData = NULL;
size_t bitmapDataSize = 0;
extern "C" JNIEXPORT jobject JNICALL Java_net_osmand_plus_render_NativeOsmandLibrary_generateRendering_1Indirect( JNIEnv* ienv, jobject obj,
    jobject renderingContext, jint searchResult,
    jint requestedBitmapWidth, jint requestedBitmapHeight, jint rowBytes, jboolean isTransparent, 
    jboolean useEnglishNames, jobject renderingRuleSearchRequest, jint defaultColor) {
        setGlobalJniEnv(ienv);

        __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Creating SkBitmap in native w:%d h:%d!", requestedBitmapWidth, requestedBitmapHeight);

        SkBitmap* bitmap = new SkBitmap();
        if(isTransparent == JNI_TRUE)
            bitmap->setConfig(SkBitmap::kARGB_8888_Config, requestedBitmapWidth, requestedBitmapHeight, rowBytes);
        else
            bitmap->setConfig(SkBitmap::kRGB_565_Config, requestedBitmapWidth, requestedBitmapHeight, rowBytes);

        if(bitmapData != NULL && bitmapDataSize != bitmap->getSize()) {
            free(bitmapData);
            bitmapData = NULL;
            bitmapDataSize = 0;
        }
        if(bitmapData == NULL && bitmapDataSize == 0) {
            bitmapDataSize = bitmap->getSize();
            bitmapData = malloc(bitmapDataSize);

            __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Allocated %d bytes at %p", bitmapDataSize, bitmapData);
        }

        bitmap->setPixels(bitmapData);

        SkCanvas* canvas = new SkCanvas(*bitmap);
        canvas->drawColor(defaultColor);

        SkPaint* paint = new SkPaint;
        paint->setAntiAlias(true);
        __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Initializing rendering");
        ElapsedTimer initObjects;
        initObjects.start();

        RenderingRuleSearchRequest* req = initSearchRequest(renderingRuleSearchRequest);
        RenderingContext rc;
        pullFromJavaRenderingContext(renderingContext, &rc);
        rc.useEnglishNames = useEnglishNames;
        SearchResult* result = ((SearchResult*) searchResult);
        //    std::vector <BaseMapDataObject* > mapDataObjects = marshalObjects(binaryMapDataObjects);

        __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Rendering image");
        initObjects.pause();


        // Main part do rendering
        rc.nativeOperations.start();
        if(result != NULL) {
            doRendering(result->result, canvas, paint, req, &rc);
        }
        rc.nativeOperations.pause();

        pushToJavaRenderingContext(renderingContext, &rc);
        __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "End Rendering image");

        // delete  variables
        delete paint;
        delete canvas;
        delete req;
        delete bitmap;
        //    deleteObjects(mapDataObjects);

        jclass resultClass = findClass("net/osmand/plus/render/NativeOsmandLibrary$RenderingGenerationResult");

        jmethodID resultClassCtorId = ienv->GetMethodID(resultClass, "<init>", "(Ljava/nio/ByteBuffer;)V");

#ifdef DEBUG_NAT_OPERATIONS
        __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Native ok (init %d, native op %d) ", initObjects.getElapsedTime(), rc.nativeOperations.getElapsedTime());
#else
        __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Native ok (init %d, rendering %d) ", initObjects.getElapsedTime(), rc.nativeOperations.getElapsedTime());
#endif

        // Allocate ctor paramters
        jobject bitmapBuffer = ienv->NewDirectByteBuffer(bitmapData, bitmap->getSize());

        /* Construct a result object */
        jobject resultObject = ienv->NewObject(resultClass, resultClassCtorId, bitmapBuffer);

        return resultObject;
}