axmol/core/3d/CCMeshVertexIndexData.cpp

/****************************************************************************
 Copyright (c) 2014-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

 https://axis-project.github.io/

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

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 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
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#include <list>
#include <fstream>
#include <iostream>
#include <sstream>

#include "3d/CCMeshVertexIndexData.h"
#include "3d/CCObjLoader.h"
#include "3d/CCMeshMaterial.h"
#include "3d/CCMesh.h"
#include "3d/CCBundle3D.h"

#include "base/ccMacros.h"
#include "base/CCEventCustom.h"
#include "base/CCEventListenerCustom.h"
#include "base/CCEventDispatcher.h"
#include "base/CCEventType.h"
#include "base/CCDirector.h"

#include "renderer/backend/Buffer.h"
#include "renderer/backend/Device.h"

using namespace std;

NS_CC_BEGIN

/////////////////////////////////////////////////////////////////////////////////////////////////////////////
MeshIndexData* MeshIndexData::create(std::string_view id,
                                     MeshVertexData* vertexData,
                                     backend::Buffer* indexbuffer,
                                     const AABB& aabb)
{
    auto meshindex = new MeshIndexData();

    meshindex->_id          = id;
    meshindex->_indexBuffer = indexbuffer;
    meshindex->_vertexData  = vertexData;
    indexbuffer->retain();
    meshindex->_aabb = aabb;

    meshindex->autorelease();
    return meshindex;
}

backend::Buffer* MeshIndexData::getVertexBuffer() const
{
    return _vertexData->getVertexBuffer();
}

MeshIndexData::MeshIndexData()
{
#if CC_ENABLE_CACHE_TEXTURE_DATA
    _backToForegroundListener = EventListenerCustom::create(EVENT_RENDERER_RECREATED, [this](EventCustom*) {
        _indexBuffer->updateData((void*)_indexData.data(), _indexData.bsize());
    });
    Director::getInstance()->getEventDispatcher()->addEventListenerWithFixedPriority(_backToForegroundListener, 1);
#endif
}

void MeshIndexData::setIndexData(const cocos2d::MeshData::IndexArray& indexdata)
{
#if CC_ENABLE_CACHE_TEXTURE_DATA
    if (!_indexData.empty())
        return;
    _indexData = indexdata;
#endif
}

MeshIndexData::~MeshIndexData()
{
    CC_SAFE_RELEASE(_indexBuffer);
    _indexData.clear();
#if CC_ENABLE_CACHE_TEXTURE_DATA
    Director::getInstance()->getEventDispatcher()->removeEventListener(_backToForegroundListener);
#endif
}

void MeshVertexData::setVertexData(const std::vector<float>& vertexData)
{
#if CC_ENABLE_CACHE_TEXTURE_DATA
    if (!_vertexData.empty())
        return;
    _vertexData = vertexData;
#endif
}

MeshVertexData* MeshVertexData::create(const MeshData& meshdata, CustomCommand::IndexFormat format)
{
    auto vertexdata           = new MeshVertexData();
    vertexdata->_vertexBuffer = backend::Device::getInstance()->newBuffer(
        meshdata.vertex.size() * sizeof(meshdata.vertex[0]), backend::BufferType::VERTEX, backend::BufferUsage::STATIC);
    // CC_SAFE_RETAIN(vertexdata->_vertexBuffer);

    vertexdata->_sizePerVertex = meshdata.getPerVertexSize();

    vertexdata->_attribs = meshdata.attribs;

    if (vertexdata->_vertexBuffer)
    {
#if CC_ENABLE_CACHE_TEXTURE_DATA
        vertexdata->setVertexData(meshdata.vertex);
        vertexdata->_vertexBuffer->usingDefaultStoredData(false);
#endif
        vertexdata->_vertexBuffer->updateData((void*)&meshdata.vertex[0],
                                              meshdata.vertex.size() * sizeof(meshdata.vertex[0]));
    }

    bool needCalcAABB = (meshdata.subMeshAABB.size() != meshdata.subMeshIndices.size());
    for (size_t i = 0, size = meshdata.subMeshIndices.size(); i < size; ++i)
    {
        auto& indices = meshdata.subMeshIndices[i];
        auto indexBuffer = backend::Device::getInstance()->newBuffer(
            indices.bsize(), backend::BufferType::INDEX, backend::BufferUsage::STATIC);
        indexBuffer->autorelease();
#if CC_ENABLE_CACHE_TEXTURE_DATA
        indexBuffer->usingDefaultStoredData(false);
#endif
        indexBuffer->updateData((void*)indices.data(), indices.bsize());

        std::string id           = (i < meshdata.subMeshIds.size() ? meshdata.subMeshIds[i] : "");
        MeshIndexData* indexdata = nullptr;
        if (needCalcAABB)
        {
            auto aabb = Bundle3D::calculateAABB(meshdata.vertex, meshdata.getPerVertexSize(), indices);
            indexdata = MeshIndexData::create(id, vertexdata, indexBuffer, aabb);
        }
        else
            indexdata = MeshIndexData::create(id, vertexdata, indexBuffer, meshdata.subMeshAABB[i]);
#if CC_ENABLE_CACHE_TEXTURE_DATA
        indexdata->setIndexData(indices);
#endif
        vertexdata->_indices.pushBack(indexdata);
    }

    vertexdata->autorelease();
    return vertexdata;
}

MeshIndexData* MeshVertexData::getMeshIndexDataById(std::string_view id) const
{
    for (auto it : _indices)
    {
        if (it->getId() == id)
            return it;
    }
    return nullptr;
}

bool MeshVertexData::hasVertexAttrib(shaderinfos::VertexKey attrib) const
{
    for (const auto& it : _attribs)
    {
        if (it.vertexAttrib == attrib)
            return true;
    }
    return false;
}

MeshVertexData::MeshVertexData()
{
#if CC_ENABLE_CACHE_TEXTURE_DATA
    _backToForegroundListener = EventListenerCustom::create(EVENT_RENDERER_RECREATED, [this](EventCustom*) {
        _vertexBuffer->updateData((void*)_vertexData.data(), _vertexData.size() * sizeof(_vertexData[0]));
    });
    Director::getInstance()->getEventDispatcher()->addEventListenerWithFixedPriority(_backToForegroundListener, 1);
#endif
}

MeshVertexData::~MeshVertexData()
{
    CC_SAFE_RELEASE(_vertexBuffer);
    _indices.clear();
    _vertexData.clear();
#if CC_ENABLE_CACHE_TEXTURE_DATA
    Director::getInstance()->getEventDispatcher()->removeEventListener(_backToForegroundListener);
#endif
}

NS_CC_END