/****************************************************************************
Copyright (c) 2008-2010 Ricardo Quesada
Copyright (c) 2009      Leonardo Kasperavičius
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2011      Zynga Inc.
Copyright (c) 2013-2017 Chukong Technologies Inc.

http://www.cocos2d-x.org
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/


#include "2d/ZMLCCParticleSystemQuad.h"

#include <algorithm>

#include "2d/CCSpriteFrame.h"
#include "2d/CCParticleBatchNode.h"
#include "renderer/CCTextureAtlas.h"
#include "renderer/ccGLStateCache.h"
#include "renderer/CCRenderer.h"
#include "base/CCDirector.h"
#include "base/CCEventType.h"
#include "base/CCConfiguration.h"
#include "base/CCEventListenerCustom.h"
#include "base/CCEventDispatcher.h"
#include "base/ccUTF8.h"
#include "common/CocosConfig.h"
NS_CC_BEGIN

ZMLCCParticleSystemQuad::ZMLCCParticleSystemQuad()
:_quads(nullptr)
,_indices(nullptr)
,_VAOname(0)
{
    memset(_buffersVBO, 0, sizeof(_buffersVBO));
}

ZMLCCParticleSystemQuad::~ZMLCCParticleSystemQuad()
{
    if (nullptr == _batchNode)
    {
        CC_SAFE_FREE(_quads);
        CC_SAFE_FREE(_indices);
        glDeleteBuffers(2, &_buffersVBO[0]);
        if (Configuration::getInstance()->supportsShareableVAO())
        {
            glDeleteVertexArrays(1, &_VAOname);
            GL::bindVAO(0);
        }
    }
}

// implementation ZMLCCParticleSystemQuad

ZMLCCParticleSystemQuad * ZMLCCParticleSystemQuad::create(const std::string& filename)
{
    ZMLCCParticleSystemQuad *ret = new (std::nothrow) ZMLCCParticleSystemQuad();
    if (ret && ret->initWithFile(filename))
    {
        ret->autorelease();
        return ret;
    }
    CC_SAFE_DELETE(ret);
    return ret;
}

ZMLCCParticleSystemQuad * ZMLCCParticleSystemQuad::createWithTotalParticles(int numberOfParticles) {
    ZMLCCParticleSystemQuad *ret = new (std::nothrow) ZMLCCParticleSystemQuad();
    if (ret && ret->initWithTotalParticles(numberOfParticles))
    {
        ret->autorelease();
        return ret;
    }
    CC_SAFE_DELETE(ret);
    return ret;
}

ZMLCCParticleSystemQuad * ZMLCCParticleSystemQuad::create(ValueMap &dictionary)
{
    ZMLCCParticleSystemQuad *ret = new (std::nothrow) ZMLCCParticleSystemQuad();
    if (ret && ret->initWithDictionary(dictionary))
    {
        ret->autorelease();
        return ret;
    }
    CC_SAFE_DELETE(ret);
    return ret;
}

//implementation ZMLCCParticleSystemQuad
// overriding the init method
bool ZMLCCParticleSystemQuad::initWithTotalParticles(int numberOfParticles)
{
    // base initialization
    if( ZMLCCParticleSystem::initWithTotalParticles(numberOfParticles) )
    {
        // allocating data space
        if( ! this->allocMemory() ) {
            this->release();
            return false;
        }

        initIndices();
        if (Configuration::getInstance()->supportsShareableVAO())
        {
            setupVBOandVAO();
        }
        else
        {
            setupVBO();
        }

        setGLProgramState(GLProgramState::getOrCreateWithGLProgramName(GLProgram::SHADER_NAME_POSITION_TEXTURE_COLOR_NO_MVP));

#if CC_ENABLE_CACHE_TEXTURE_DATA
        // Need to listen the event only when not use batchnode, because it will use VBO
        auto listener = EventListenerCustom::create(EVENT_RENDERER_RECREATED, CC_CALLBACK_1(ZMLCCParticleSystemQuad::listenRendererRecreated, this));
        _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
#endif

        return true;
    }
    return false;
}

// pointRect should be in Texture coordinates, not pixel coordinates
void ZMLCCParticleSystemQuad::initTexCoordsWithRect(const Rect& pointRect, bool isrotaed, Vec2 &offset, Vec2 &originalSize)
{
    // convert to Tex coords
    
    Rect rect = Rect(
                     pointRect.origin.x * CC_CONTENT_SCALE_FACTOR(),
                     pointRect.origin.y * CC_CONTENT_SCALE_FACTOR(),
                     pointRect.size.width * CC_CONTENT_SCALE_FACTOR(),
                     pointRect.size.height * CC_CONTENT_SCALE_FACTOR());
    
    GLfloat wide = (GLfloat) pointRect.size.width;
    GLfloat high = (GLfloat) pointRect.size.height;
    
    float rw = rect.size.width;
    float rh = rect.size.height;
    
    if (isrotaed)
        std::swap(rw, rh);
    
    if (_texture)
    {
        wide = (GLfloat)_texture->getPixelsWide();
        high = (GLfloat)_texture->getPixelsHigh();
    }
    
#if CC_FIX_ARTIFACTS_BY_STRECHING_TEXEL
    GLfloat left = (rect.origin.x*2+1) / (wide*2);
    GLfloat bottom = (rect.origin.y*2+1) / (high*2);
    GLfloat right = left + (rw*2-2) / (wide*2);
    GLfloat top = bottom + (rh*2-2) / (high*2);
#else
    GLfloat left = rect.origin.x / wide;
    GLfloat bottom = rect.origin.y / high;
    GLfloat right = left + rw / wide;
    GLfloat top = bottom + rh / high;
#endif // ! CC_FIX_ARTIFACTS_BY_STRECHING_TEXEL
    
    // Important. Texture in cocos2d are inverted, so the Y component should be inverted
    std::swap(top, bottom);
    
    
//    CCASSERT(_texNumber < 100, "纹理数量超过上限");
//
    if (isrotaed)
    {
        _vertexInfo.bl.u = left;
        _vertexInfo.bl.v = top;
        _vertexInfo.br.u = left;
        _vertexInfo.br.v = bottom;
        _vertexInfo.tl.u = right;
        _vertexInfo.tl.v = top;
        _vertexInfo.tr.u = right;
        _vertexInfo.tr.v = bottom;

    }
    else
    {
        _vertexInfo.bl.u = left;
        _vertexInfo.bl.v = bottom;
        _vertexInfo.br.u = right;
        _vertexInfo.br.v = bottom;
        _vertexInfo.tl.u = left;
        _vertexInfo.tl.v = top;
        _vertexInfo.tr.u = right;
        _vertexInfo.tr.v = top;
    }
    if (!offset.isZero()){
//        CCLOG("");
    }
    float originalSizeX_2 = 2 / originalSize.x; // 宽的一半的倒数
    float originalSizeY_2 = 2 / originalSize.y;
    float x1 = (pointRect.size.width * 0.5 - offset.x) * originalSizeX_2;
    float x2 = (pointRect.size.width * 0.5 + offset.x) * originalSizeX_2;
    
    float y1 = (pointRect.size.height * 0.5 - offset.y) * originalSizeY_2;
    float y2 = (pointRect.size.height * 0.5 + offset.y) * originalSizeY_2;
    _vertexInfo.TexturePercentage.set(x1, x2, y1, y2);
}

void ZMLCCParticleSystemQuad::updateTexCoords()
{
    if (_texture)
    { // 走小图
        const Size& s = _texture->getContentSize();
        Vec2 offset(0,0);
        Vec2 originalSize(s.width, s.height);
         initTexCoordsWithRect(Rect(0, 0, s.width, s.height),false,offset,originalSize);
    }
}

void ZMLCCParticleSystemQuad::setTextureWithRect(Texture2D *texture, const Rect& rect, bool isrotaed, Vec2& offset, Vec2& originalSize)
{
    if( !_texture || texture->getName() != _texture->getName() )
    {
        ZMLCCParticleSystem::setTexture(texture);
    }
    
    this->initTexCoordsWithRect(rect,isrotaed,offset,originalSize);
}

void ZMLCCParticleSystemQuad::setTexture(Texture2D* texture)
{
    const Size& s = texture->getContentSize();
    Vec2 offset(0,0);
    Vec2 originalSize(s.width, s.height);
    this->setTextureWithRect(texture, Rect(0, 0, s.width, s.height),false,offset,originalSize);
}

void ZMLCCParticleSystemQuad::setDisplayFrame(SpriteFrame *spriteFrame)
{
//    CCASSERT(spriteFrame->getOffsetInPixels().isZero(), 
//             "QuadParticle only supports SpriteFrames with no offsets");

    bool isrotaed = spriteFrame->isRotated();
    Vec2 offset = spriteFrame->getOffset();
    Vec2 originalSize = spriteFrame->getOriginalSize();
    auto pointRect = spriteFrame->getRect();
    
    this->setTextureWithRect(spriteFrame->getTexture(), pointRect,isrotaed,offset,originalSize);
}

void ZMLCCParticleSystemQuad::initIndices()
{
    for(int i = 0; i < _totalParticles; ++i)
    {
        const unsigned int i6 = i*6;
        const unsigned int i4 = i*4;
        _indices[i6+0] = (GLushort) i4+0;
        _indices[i6+1] = (GLushort) i4+1;
        _indices[i6+2] = (GLushort) i4+2;

        _indices[i6+5] = (GLushort) i4+1;
        _indices[i6+4] = (GLushort) i4+2;
        _indices[i6+3] = (GLushort) i4+3;
    }
}

inline void updatePosWithParticle(V3F_C4B_T2F_Quad *quad, const Vec2& newPosition, float rotation, float size,Vec4 texturePercentage)
{
    // vertices
    GLfloat size_2 = size/2;
    GLfloat x1 = -size_2 * texturePercentage.x;
    GLfloat y1 = -size_2 * texturePercentage.z;
    
    GLfloat x2 = size_2 * texturePercentage.y;
    GLfloat y2 = size_2 * texturePercentage.w;
    
    GLfloat x = newPosition.x;
    GLfloat y = newPosition.y;

    
    GLfloat r = (GLfloat)-CC_DEGREES_TO_RADIANS(rotation);
    GLfloat cr = cosf(r);
    GLfloat sr = sinf(r);
    GLfloat ax = x1 * cr - y1 * sr + x;
    GLfloat ay = x1 * sr + y1 * cr + y;
    GLfloat bx = x2 * cr - y1 * sr + x;
    GLfloat by = x2 * sr + y1 * cr + y;
    GLfloat cx = x2 * cr - y2 * sr + x;
    GLfloat cy = x2 * sr + y2 * cr + y;
    GLfloat dx = x1 * cr - y2 * sr + x;
    GLfloat dy = x1 * sr + y2 * cr + y;
    
    // bottom-left
    quad->bl.vertices.x = ax;
    quad->bl.vertices.y = ay;
    
    // bottom-right vertex:
    quad->br.vertices.x = bx;
    quad->br.vertices.y = by;
    
    // top-left vertex:
    quad->tl.vertices.x = dx;
    quad->tl.vertices.y = dy;

    
    // top-right vertex:
    quad->tr.vertices.x = cx;
    quad->tr.vertices.y = cy;
}

void ZMLCCParticleSystemQuad::updateParticleQuads()
{
    if (_particleCount <= 0) {
        return;
    }
 
    Vec2 currentPosition;
    if (_positionType == PositionType::FREE)
    {
        currentPosition = this->convertToWorldSpace(Vec2::ZERO);
    }
    else if (_positionType == PositionType::RELATIVE)
    {
        currentPosition = _position;
    }
    
    V3F_C4B_T2F_Quad *startQuad;
    Vec2 pos = Vec2::ZERO;
    if (_batchNode)
    {
        V3F_C4B_T2F_Quad *batchQuads = _batchNode->getTextureAtlas()->getQuads();
        startQuad = &(batchQuads[_atlasIndex]);
        pos = _position;
    }
    else
    {
        startQuad = &(_quads[0]);
    }
    
    if( _positionType == PositionType::FREE )
    {
        Vec3 p1(currentPosition.x, currentPosition.y, 0);
        Mat4 worldToNodeTM = getWorldToNodeTransform();
        worldToNodeTM.transformPoint(&p1);
        Vec3 p2;
        Vec2 newPos;
        float* startX = _particleData.startPosX;
        float* startY = _particleData.startPosY;
        float* x = _particleData.posx;
        float* y = _particleData.posy;
        float* s = _particleData.size;
        float* r = _particleData.rotation;
        V3F_C4B_T2F_Quad* quadStart = startQuad;
        for (int i = 0 ; i < _particleCount; ++i, ++startX, ++startY, ++x, ++y, ++quadStart, ++s, ++r)
        {
            p2.set(*startX, *startY, 0);
            worldToNodeTM.transformPoint(&p2);
            newPos.set(*x,*y);
            p2 = p1 - p2;
            newPos.x -= p2.x - pos.x;
            newPos.y -= p2.y - pos.y;
            Vec4 texturePercentage = _vertexInfo.TexturePercentage;
            updatePosWithParticle(quadStart, newPos, *r, *s,texturePercentage);
        }
    }
    else if( _positionType == PositionType::RELATIVE )
    {
        Vec2 newPos;
        float* startX = _particleData.startPosX;
        float* startY = _particleData.startPosY;
        float* x = _particleData.posx;
        float* y = _particleData.posy;
        float* s = _particleData.size;
        float* r = _particleData.rotation;
        V3F_C4B_T2F_Quad* quadStart = startQuad;
        Vec4 texturePercentage = _vertexInfo.TexturePercentage;
        for (int i = 0 ; i < _particleCount; ++i, ++startX, ++startY, ++x, ++y, ++quadStart, ++s, ++r)
        {
            newPos.set(*x, *y);
            newPos.x = *x - (currentPosition.x - *startX);
            newPos.y = *y - (currentPosition.y - *startY);
            newPos += pos;
            updatePosWithParticle(quadStart, newPos, *r, *s,texturePercentage);
        }
    }
    else
    {
        Vec2 newPos;
        float* startX = _particleData.startPosX;
        float* startY = _particleData.startPosY;
        float* x = _particleData.posx;
        float* y = _particleData.posy;
        float* s = _particleData.size;
        float* r = _particleData.rotation;
        V3F_C4B_T2F_Quad* quadStart = startQuad;
        Vec4 texturePercentage = _vertexInfo.TexturePercentage;
        for (int i = 0 ; i < _particleCount; ++i, ++startX, ++startY, ++x, ++y, ++quadStart, ++s, ++r)
        {
            newPos.set(*x + pos.x, *y + pos.y);
            
            updatePosWithParticle(quadStart, newPos, *r, *s,texturePercentage);
        }
    }
    
    //set color
    if(_opacityModifyRGB)
    {
        V3F_C4B_T2F_Quad* quad = startQuad;
        float* r = _particleData.colorR;
        float* g = _particleData.colorG;
        float* b = _particleData.colorB;
        float* a = _particleData.colorA;
        
        for (int i = 0; i < _particleCount; ++i,++quad,++r,++g,++b,++a)
        {
            GLubyte colorR = *r * *a * 255 * _displayedColor.r / 255  * _displayedOpacity / 255;
            GLubyte colorG = *g * *a * 255 * _displayedColor.g / 255  * _displayedOpacity / 255;
            GLubyte colorB = *b * *a * 255 * _displayedColor.b / 255  * _displayedOpacity / 255;
            GLubyte colorA = *a * 255 * _displayedOpacity / 255;
            quad->bl.colors.set(colorR, colorG, colorB, colorA);
            quad->br.colors.set(colorR, colorG, colorB, colorA);
            quad->tl.colors.set(colorR, colorG, colorB, colorA);
            quad->tr.colors.set(colorR, colorG, colorB, colorA);
        }
    }
    else
    {
        V3F_C4B_T2F_Quad* quad = startQuad;
        float* r = _particleData.colorR;
        float* g = _particleData.colorG;
        float* b = _particleData.colorB;
        float* a = _particleData.colorA;
        
        for (int i = 0; i < _particleCount; ++i,++quad,++r,++g,++b,++a)
        {
            GLubyte colorR = *r * 255 * _displayedColor.r / 255 * _displayedOpacity / 255;
            GLubyte colorG = *g * 255 * _displayedColor.g / 255 * _displayedOpacity / 255;
            GLubyte colorB = *b * 255 * _displayedColor.b / 255 * _displayedOpacity / 255;
            GLubyte colorA = *a * 255 * _displayedOpacity / 255;
            quad->bl.colors.set(colorR, colorG, colorB, colorA);
            quad->br.colors.set(colorR, colorG, colorB, colorA);
            quad->tl.colors.set(colorR, colorG, colorB, colorA);
            quad->tr.colors.set(colorR, colorG, colorB, colorA);
        }
    }
    
    {
        //设置顶点
        V3F_C4B_T2F_Quad* quad = startQuad;
        for (int i = 0; i < _particleCount; ++i, ++quad) {
            quad->bl.texCoords.u = _vertexInfo.bl.u;
            quad->bl.texCoords.v = _vertexInfo.bl.v;
            // bottom-right vertex:
            quad->br.texCoords.u = _vertexInfo.br.u;
            quad->br.texCoords.v = _vertexInfo.br.v;
            // top-left vertex:
            quad->tl.texCoords.u = _vertexInfo.tl.u;
            quad->tl.texCoords.v = _vertexInfo.tl.v;
            // top-right vertex:
            quad->tr.texCoords.u = _vertexInfo.tr.u;
            quad->tr.texCoords.v = _vertexInfo.tr.v;
        }
    }
}

void ZMLCCParticleSystemQuad::postStep()
{
    glBindBuffer(GL_ARRAY_BUFFER, _buffersVBO[0]);
    
    // Option 1: Sub Data
    glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(_quads[0])*_totalParticles, _quads);
    
    // Option 2: Data
    //  glBufferData(GL_ARRAY_BUFFER, sizeof(quads_[0]) * particleCount, quads_, GL_DYNAMIC_DRAW);
    
    // Option 3: Orphaning + glMapBuffer
    // glBufferData(GL_ARRAY_BUFFER, sizeof(_quads[0])*_totalParticles, nullptr, GL_STREAM_DRAW);
    // void *buf = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
    // memcpy(buf, _quads, sizeof(_quads[0])*_totalParticles);
    // glUnmapBuffer(GL_ARRAY_BUFFER);
    
    glBindBuffer(GL_ARRAY_BUFFER, 0);
    
    CHECK_GL_ERROR_DEBUG();
}

// overriding draw method
void ZMLCCParticleSystemQuad::draw(Renderer *renderer, const Mat4 &transform, uint32_t flags)
{
    //quad command
    if(_particleCount > 0)
    {
        _quadCommand.init(_globalZOrder, _texture, getGLProgramState(), _blendFunc, _quads, _particleCount, transform, flags);
        renderer->addCommand(&_quadCommand);
    }
}

void ZMLCCParticleSystemQuad::setTotalParticles(int tp)
{
    // If we are setting the total number of particles to a number higher
    // than what is allocated, we need to allocate new arrays
    if( tp > _allocatedParticles )
    {
        // Allocate new memory
        size_t quadsSize = sizeof(_quads[0]) * tp * 1;
        size_t indicesSize = sizeof(_indices[0]) * tp * 6 * 1;

        _particleData.release();
        if (!_particleData.init(tp))
        {
            CCLOG("Particle system: not enough memory");
            return;
        }
        V3F_C4B_T2F_Quad* quadsNew = (V3F_C4B_T2F_Quad*)realloc(_quads, quadsSize);
        GLushort* indicesNew = (GLushort*)realloc(_indices, indicesSize);

        if (quadsNew && indicesNew)
        {
            // Assign pointers
            _quads = quadsNew;
            _indices = indicesNew;

            // Clear the memory
            memset(_quads, 0, quadsSize);
            memset(_indices, 0, indicesSize);
            
            _allocatedParticles = tp;
        }
        else
        {
            // Out of memory, failed to resize some array
            if (quadsNew) _quads = quadsNew;
            if (indicesNew) _indices = indicesNew;

            CCLOG("Particle system: out of memory");
            return;
        }

        _totalParticles = tp;

        // Init particles
        if (_batchNode)
        {
            for (int i = 0; i < _totalParticles; i++)
            {
                _particleData.atlasIndex[i] = i;
            }
        }

        initIndices();
        if (Configuration::getInstance()->supportsShareableVAO())
        {
            setupVBOandVAO();
        }
        else
        {
            setupVBO();
        }
        
        // fixed http://www.cocos2d-x.org/issues/3990
        // Updates texture coords.
        updateTexCoords();
    }
    else
    {
        _totalParticles = tp;
    }
    
    // fixed issue #5762
    // reset the emission rate
    if(CocosConfig::isCCBParticleUseEmitrate() == false){
        setEmissionRate(_totalParticles / _life);
    }
    
    resetSystem();
}

void ZMLCCParticleSystemQuad::setupVBOandVAO()
{
    // clean VAO
    glDeleteBuffers(2, &_buffersVBO[0]);
    glDeleteVertexArrays(1, &_VAOname);
    GL::bindVAO(0);
    
    glGenVertexArrays(1, &_VAOname);
    GL::bindVAO(_VAOname);

#define kQuadSize sizeof(_quads[0].bl)

    glGenBuffers(2, &_buffersVBO[0]);

    glBindBuffer(GL_ARRAY_BUFFER, _buffersVBO[0]);
    glBufferData(GL_ARRAY_BUFFER, sizeof(_quads[0]) * _totalParticles, _quads, GL_DYNAMIC_DRAW);

    // vertices
    glEnableVertexAttribArray(GLProgram::VERTEX_ATTRIB_POSITION);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, kQuadSize, (GLvoid*) offsetof( V3F_C4B_T2F, vertices));

    // colors
    glEnableVertexAttribArray(GLProgram::VERTEX_ATTRIB_COLOR);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_UNSIGNED_BYTE, GL_TRUE, kQuadSize, (GLvoid*) offsetof( V3F_C4B_T2F, colors));

    // tex coords
    glEnableVertexAttribArray(GLProgram::VERTEX_ATTRIB_TEX_COORD);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_TEX_COORD, 2, GL_FLOAT, GL_FALSE, kQuadSize, (GLvoid*) offsetof( V3F_C4B_T2F, texCoords));

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _buffersVBO[1]);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(_indices[0]) * _totalParticles * 6, _indices, GL_STATIC_DRAW);

    // Must unbind the VAO before changing the element buffer.
    GL::bindVAO(0);
    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
    glBindBuffer(GL_ARRAY_BUFFER, 0);

    CHECK_GL_ERROR_DEBUG();
}

void ZMLCCParticleSystemQuad::setupVBO()
{
    glDeleteBuffers(2, &_buffersVBO[0]);
    
    glGenBuffers(2, &_buffersVBO[0]);

    glBindBuffer(GL_ARRAY_BUFFER, _buffersVBO[0]);
    glBufferData(GL_ARRAY_BUFFER, sizeof(_quads[0]) * _totalParticles, _quads, GL_DYNAMIC_DRAW);
    glBindBuffer(GL_ARRAY_BUFFER, 0);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _buffersVBO[1]);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(_indices[0]) * _totalParticles * 6, _indices, GL_STATIC_DRAW);
    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);

    CHECK_GL_ERROR_DEBUG();
}

void ZMLCCParticleSystemQuad::listenRendererRecreated(EventCustom* /*event*/)
{
    //when comes to foreground in android, _buffersVBO and _VAOname is a wild handle
    //before recreating, we need to reset them to 0
    memset(_buffersVBO, 0, sizeof(_buffersVBO));
    if (Configuration::getInstance()->supportsShareableVAO())
    {
        _VAOname = 0;
        setupVBOandVAO();
    }
    else
    {
        setupVBO();
    }
}

bool ZMLCCParticleSystemQuad::allocMemory()
{
    CCASSERT( !_batchNode, "Memory should not be alloced when not using batchNode");

    CC_SAFE_FREE(_quads);
    CC_SAFE_FREE(_indices);

    _quads = (V3F_C4B_T2F_Quad*)malloc(_totalParticles * sizeof(V3F_C4B_T2F_Quad));
    _indices = (GLushort*)malloc(_totalParticles * 6 * sizeof(GLushort));
    
    if( !_quads || !_indices) 
    {
        CCLOG("cocos2d: Particle system: not enough memory");
        CC_SAFE_FREE(_quads);
        CC_SAFE_FREE(_indices);

        return false;
    }

    memset(_quads, 0, _totalParticles * sizeof(V3F_C4B_T2F_Quad));
    memset(_indices, 0, _totalParticles * 6 * sizeof(GLushort));

    return true;
}

void ZMLCCParticleSystemQuad::setBatchNode(ParticleBatchNode * batchNode)
{
    if( _batchNode != batchNode ) 
    {
        ParticleBatchNode* oldBatch = _batchNode;

        ZMLCCParticleSystem::setBatchNode(batchNode);

        // NEW: is self render ?
        if( ! batchNode ) 
        {
            allocMemory();
            initIndices();
            setTexture(oldBatch->getTexture());
            if (Configuration::getInstance()->supportsShareableVAO())
            {
                setupVBOandVAO();
            }
            else
            {
                setupVBO();
            }
        }
        // OLD: was it self render ? cleanup
        else if( !oldBatch )
        {
            // copy current state to batch
            V3F_C4B_T2F_Quad *batchQuads = _batchNode->getTextureAtlas()->getQuads();
            V3F_C4B_T2F_Quad *quad = &(batchQuads[_atlasIndex] );
            memcpy( quad, _quads, _totalParticles * sizeof(_quads[0]) );

            CC_SAFE_FREE(_quads);
            CC_SAFE_FREE(_indices);

            glDeleteBuffers(2, &_buffersVBO[0]);
            memset(_buffersVBO, 0, sizeof(_buffersVBO));
            if (Configuration::getInstance()->supportsShareableVAO())
            {
                glDeleteVertexArrays(1, &_VAOname);
                GL::bindVAO(0);
                _VAOname = 0;
            }
        }
    }
}

ZMLCCParticleSystemQuad * ZMLCCParticleSystemQuad::create() {
    ZMLCCParticleSystemQuad *particleSystemQuad = new (std::nothrow) ZMLCCParticleSystemQuad();
    if (particleSystemQuad && particleSystemQuad->init())
    {
        particleSystemQuad->autorelease();
        return particleSystemQuad;
    }
    CC_SAFE_DELETE(particleSystemQuad);
    return nullptr;
}

std::string ZMLCCParticleSystemQuad::getDescription() const
{
    return StringUtils::format("<ZMLCCParticleSystemQuad | Tag = %d, Total Particles = %d>", _tag, _totalParticles);
}
void ZMLCCParticleSystemQuad::setParticlyKeyInfo(bool isSF,std::string originalName,std::unordered_set<std::string> originaPlist){
    _isSpriteFrame = isSF;
    _originalName = originalName;
    _originalPlistSt = originaPlist;
}
///根据记录的信息重置纹理
void ZMLCCParticleSystemQuad::resetTextureByKeyInfo(std::unordered_set<std::string> replacePlist){
    
    if (_isSpriteFrame) {
        SpriteFrameCache * frameCache = SpriteFrameCache::getInstance();
        SpriteFrame * pFrame = frameCache->getSpriteFrameByName(_originalName,replacePlist);
        if (!pFrame) {
            pFrame = frameCache->getSpriteFrameByName(_originalName,_originalPlistSt);
        }
        bool isrotated = pFrame->isRotated();
        Vec2 offset = pFrame->getOffset();
        Vec2 originalSize = pFrame->getOriginalSize();
        auto pointRect = pFrame->getRect();
        setTextureWithRect(pFrame->getTexture(), pFrame->getRect(),isrotated,offset,originalSize);
    }
    else{
        
    }
}
NS_CC_END