axmol/core/3d/CCMeshMaterial.cpp

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

 https://axys1.github.io/

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 all copies or substantial portions of the Software.

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 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
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 ****************************************************************************/

#include "3d/CCMeshMaterial.h"
#include "3d/CCMesh.h"
#include "platform/CCFileUtils.h"
#include "renderer/CCTexture2D.h"
#include "base/CCDirector.h"
#include "base/CCEventType.h"
#include "base/CCConfiguration.h"
#include "renderer/backend/ProgramState.h"
#include "renderer/ccShaders.h"
#include "renderer/CCPass.h"

NS_AX_BEGIN

MeshMaterialCache* MeshMaterialCache::_cacheInstance = nullptr;

std::unordered_map<std::string, MeshMaterial*> MeshMaterial::_materials;
MeshMaterial* MeshMaterial::_unLitMaterial         = nullptr;
MeshMaterial* MeshMaterial::_unLitNoTexMaterial    = nullptr;
MeshMaterial* MeshMaterial::_vertexLitMaterial     = nullptr;
MeshMaterial* MeshMaterial::_diffuseMaterial       = nullptr;
MeshMaterial* MeshMaterial::_diffuseNoTexMaterial  = nullptr;
MeshMaterial* MeshMaterial::_bumpedDiffuseMaterial = nullptr;

MeshMaterial* MeshMaterial::_unLitMaterialSkin         = nullptr;
MeshMaterial* MeshMaterial::_vertexLitMaterialSkin     = nullptr;
MeshMaterial* MeshMaterial::_diffuseMaterialSkin       = nullptr;
MeshMaterial* MeshMaterial::_bumpedDiffuseMaterialSkin = nullptr;

MeshMaterial* MeshMaterial::_quadTextureMaterial = nullptr;
MeshMaterial* MeshMaterial::_quadColorMaterial = nullptr;

backend::ProgramState* MeshMaterial::_unLitMaterialProgState         = nullptr;
backend::ProgramState* MeshMaterial::_unLitNoTexMaterialProgState    = nullptr;
backend::ProgramState* MeshMaterial::_vertexLitMaterialProgState     = nullptr;
backend::ProgramState* MeshMaterial::_diffuseMaterialProgState       = nullptr;
backend::ProgramState* MeshMaterial::_diffuseNoTexMaterialProgState  = nullptr;
backend::ProgramState* MeshMaterial::_bumpedDiffuseMaterialProgState = nullptr;

backend::ProgramState* MeshMaterial::_unLitMaterialSkinProgState         = nullptr;
backend::ProgramState* MeshMaterial::_vertexLitMaterialSkinProgState     = nullptr;
backend::ProgramState* MeshMaterial::_diffuseMaterialSkinProgState       = nullptr;
backend::ProgramState* MeshMaterial::_bumpedDiffuseMaterialSkinProgState = nullptr;

backend::ProgramState* MeshMaterial::_quadTextureMaterialProgState            = nullptr;
backend::ProgramState* MeshMaterial::_quadColorMaterialProgState            = nullptr;

void MeshMaterial::createBuiltInMaterial()
{
    auto* program               = backend::Program::getBuiltinProgram(backend::ProgramType::SKINPOSITION_TEXTURE_3D);
    _unLitMaterialSkinProgState = new backend::ProgramState(program);
    _unLitMaterialSkin          = new MeshMaterial();
    if (_unLitMaterialSkin && _unLitMaterialSkin->initWithProgramState(_unLitMaterialSkinProgState))
    {
        _unLitMaterialSkin->_type = MeshMaterial::MaterialType::UNLIT;
    }

    program = backend::Program::getBuiltinProgram(backend::ProgramType::SKINPOSITION_NORMAL_TEXTURE_3D);
    _diffuseMaterialSkinProgState = new backend::ProgramState(program);
    _diffuseMaterialSkin          = new MeshMaterial();
    if (_diffuseMaterialSkin && _diffuseMaterialSkin->initWithProgramState(_diffuseMaterialSkinProgState))
    {
        _diffuseMaterialSkin->_type = MeshMaterial::MaterialType::DIFFUSE;
    }

    program                   = backend::Program::getBuiltinProgram(backend::ProgramType::POSITION_NORMAL_TEXTURE_3D);
    _diffuseMaterialProgState = new backend::ProgramState(program);
    _diffuseMaterial          = new MeshMaterial();
    if (_diffuseMaterial && _diffuseMaterial->initWithProgramState(_diffuseMaterialProgState))
    {
        _diffuseMaterial->_type = MeshMaterial::MaterialType::DIFFUSE;
    }

    program                 = backend::Program::getBuiltinProgram(backend::ProgramType::POSITION_TEXTURE_3D);
    _unLitMaterialProgState = new backend::ProgramState(program);
    _unLitMaterial          = new MeshMaterial();
    if (_unLitMaterial && _unLitMaterial->initWithProgramState(_unLitMaterialProgState))
    {
        _unLitMaterial->_type = MeshMaterial::MaterialType::UNLIT;
    }

    program                      = backend::Program::getBuiltinProgram(backend::ProgramType::POSITION_3D);
    _unLitNoTexMaterialProgState = new backend::ProgramState(program);
    _unLitNoTexMaterial          = new MeshMaterial();
    if (_unLitNoTexMaterial && _unLitNoTexMaterial->initWithProgramState(_unLitNoTexMaterialProgState))
    {
        _unLitNoTexMaterial->_type = MeshMaterial::MaterialType::UNLIT_NOTEX;
    }

    program                        = backend::Program::getBuiltinProgram(backend::ProgramType::POSITION_NORMAL_3D);
    _diffuseNoTexMaterialProgState = new backend::ProgramState(program);
    _diffuseNoTexMaterial          = new MeshMaterial();
    if (_diffuseNoTexMaterial && _diffuseNoTexMaterial->initWithProgramState(_diffuseNoTexMaterialProgState))
    {
        _diffuseNoTexMaterial->_type = MeshMaterial::MaterialType::DIFFUSE_NOTEX;
    }

    program = backend::Program::getBuiltinProgram(backend::ProgramType::POSITION_BUMPEDNORMAL_TEXTURE_3D);
    _bumpedDiffuseMaterialProgState = new backend::ProgramState(program);
    _bumpedDiffuseMaterial          = new MeshMaterial();
    if (_bumpedDiffuseMaterial && _bumpedDiffuseMaterial->initWithProgramState(_bumpedDiffuseMaterialProgState))
    {
        _bumpedDiffuseMaterial->_type = MeshMaterial::MaterialType::BUMPED_DIFFUSE;
    }

    program = backend::Program::getBuiltinProgram(backend::ProgramType::SKINPOSITION_BUMPEDNORMAL_TEXTURE_3D);
    _bumpedDiffuseMaterialSkinProgState = new backend::ProgramState(program);
    _bumpedDiffuseMaterialSkin          = new MeshMaterial();
    if (_bumpedDiffuseMaterialSkin &&
        _bumpedDiffuseMaterialSkin->initWithProgramState(_bumpedDiffuseMaterialSkinProgState))
    {
        _bumpedDiffuseMaterialSkin->_type = MeshMaterial::MaterialType::BUMPED_DIFFUSE;
    }

    program = backend::Program::getBuiltinProgram(backend::ProgramType::QUAD_TEXTURE_2D);
    _quadTextureMaterialProgState = new backend::ProgramState(program);
    _quadTextureMaterial          = new MeshMaterial();
    if (_quadTextureMaterial && _quadTextureMaterial->initWithProgramState(_quadTextureMaterialProgState))
    {
        _quadTextureMaterial->_type = MeshMaterial::MaterialType::QUAD_TEXTURE;
    }

    program = backend::Program::getBuiltinProgram(backend::ProgramType::QUAD_COLOR_2D);
    _quadColorMaterialProgState = new backend::ProgramState(program);
    _quadColorMaterial          = new MeshMaterial();
    if (_quadColorMaterial && _quadColorMaterial->initWithProgramState(_quadColorMaterialProgState))
    {
        _quadColorMaterial->_type = MeshMaterial::MaterialType::QUAD_COLOR;
    }
}

void MeshMaterial::releaseBuiltInMaterial()
{
    AX_SAFE_RELEASE_NULL(_unLitMaterial);
    AX_SAFE_RELEASE_NULL(_unLitMaterialSkin);

    AX_SAFE_RELEASE_NULL(_unLitNoTexMaterial);
    AX_SAFE_RELEASE_NULL(_vertexLitMaterial);
    AX_SAFE_RELEASE_NULL(_diffuseMaterial);
    AX_SAFE_RELEASE_NULL(_diffuseNoTexMaterial);
    AX_SAFE_RELEASE_NULL(_bumpedDiffuseMaterial);

    AX_SAFE_RELEASE_NULL(_vertexLitMaterialSkin);
    AX_SAFE_RELEASE_NULL(_diffuseMaterialSkin);
    AX_SAFE_RELEASE_NULL(_bumpedDiffuseMaterialSkin);
    // release program states
    AX_SAFE_RELEASE_NULL(_unLitMaterialProgState);
    AX_SAFE_RELEASE_NULL(_unLitNoTexMaterialProgState);
    AX_SAFE_RELEASE_NULL(_vertexLitMaterialProgState);
    AX_SAFE_RELEASE_NULL(_diffuseMaterialProgState);
    AX_SAFE_RELEASE_NULL(_diffuseNoTexMaterialProgState);
    AX_SAFE_RELEASE_NULL(_bumpedDiffuseMaterialProgState);

    AX_SAFE_RELEASE_NULL(_unLitMaterialSkinProgState);
    AX_SAFE_RELEASE_NULL(_vertexLitMaterialSkinProgState);
    AX_SAFE_RELEASE_NULL(_diffuseMaterialSkinProgState);
    AX_SAFE_RELEASE_NULL(_bumpedDiffuseMaterialSkinProgState);
}

void MeshMaterial::releaseCachedMaterial()
{
    for (auto&& it : _materials)
    {
        if (it.second)
            it.second->release();
    }
    _materials.clear();
}

Material* MeshMaterial::clone() const
{
    auto material = new MeshMaterial();

    material->_renderState = _renderState;

    for (const auto& technique : _techniques)
    {
        auto t = technique->clone();
        t->setMaterial(material);
        for (ssize_t i = 0; i < t->getPassCount(); i++)
        {
            t->getPassByIndex(i)->setTechnique(t);
        }
        material->_techniques.pushBack(t);
    }

    // current technique
    auto name                   = _currentTechnique->getName();
    material->_currentTechnique = material->getTechniqueByName(name);
    material->_type             = _type;
    material->autorelease();

    return material;
}

MeshMaterial* MeshMaterial::createBuiltInMaterial(MaterialType type, bool skinned)
{
    /////
    if (_diffuseMaterial == nullptr)
        createBuiltInMaterial();

    MeshMaterial* material = nullptr;
    switch (type)
    {
    case MeshMaterial::MaterialType::UNLIT:
        material = skinned ? _unLitMaterialSkin : _unLitMaterial;
        break;

    case MeshMaterial::MaterialType::UNLIT_NOTEX:
        material = _unLitNoTexMaterial;
        break;

    case MeshMaterial::MaterialType::VERTEX_LIT:
        AXASSERT(0, "not implemented");
        break;

    case MeshMaterial::MaterialType::DIFFUSE:
        material = skinned ? _diffuseMaterialSkin : _diffuseMaterial;
        break;

    case MeshMaterial::MaterialType::DIFFUSE_NOTEX:
        material = _diffuseNoTexMaterial;
        break;

    case MeshMaterial::MaterialType::BUMPED_DIFFUSE:
        material = skinned ? _bumpedDiffuseMaterialSkin : _bumpedDiffuseMaterial;
        break;

    case MeshMaterial::MaterialType::QUAD_TEXTURE:
        material = _quadTextureMaterial;
        break;

    case MeshMaterial::MaterialType::QUAD_COLOR:
        material = _quadColorMaterial;
        break;

    default:
        break;
    }
    if (material)
        return (MeshMaterial*)material->clone();

    return nullptr;
}

MeshMaterial* MeshMaterial::createWithFilename(std::string_view path)
{
    auto validfilename = FileUtils::getInstance()->fullPathForFilename(path);
    if (!validfilename.empty())
    {
        auto it = _materials.find(validfilename);
        if (it != _materials.end())
            return (MeshMaterial*)it->second->clone();

        auto material = new MeshMaterial();
        if (material->initWithFile(path))
        {
            material->_type           = MeshMaterial::MaterialType::CUSTOM;
            _materials[validfilename] = material;

            return (MeshMaterial*)material->clone();
        }
        AX_SAFE_DELETE(material);
    }
    return nullptr;
}

MeshMaterial* MeshMaterial::createWithProgramState(backend::ProgramState* programState)
{
    AXASSERT(programState, "Invalid program state.");

    auto mat = new MeshMaterial();
    if (mat->initWithProgramState(programState))
    {
        mat->_type = MeshMaterial::MaterialType::CUSTOM;
        mat->autorelease();
        return mat;
    }
    AX_SAFE_DELETE(mat);
    return nullptr;
}

void MeshMaterial::setTexture(Texture2D* tex, NTextureData::Usage usage)
{
    const auto& passes = getTechnique()->getPasses();
    for (auto&& pass : passes)
    {
        pass->setUniformTexture(0, tex->getBackendTexture());
    }
}

//////////////////////////////////////////////////////////////////////////////////////////////////////

MeshMaterialCache::MeshMaterialCache() {}

MeshMaterialCache::~MeshMaterialCache()
{
    removeAllMeshMaterial();
}

MeshMaterialCache* MeshMaterialCache::getInstance()
{
    if (!_cacheInstance)
    {
        _cacheInstance = new MeshMaterialCache();
    }

    return _cacheInstance;
}

void MeshMaterialCache::destroyInstance()
{
    if (_cacheInstance)
    {
        AX_SAFE_DELETE(_cacheInstance);
    }
}

bool MeshMaterialCache::addMeshMaterial(std::string_view key, Texture2D* texture)
{
    auto itr = _materials.find(key);
    if (itr == _materials.end())
    {
        AX_SAFE_RETAIN(texture);
        _materials.emplace(key, texture);
        return true;
    }
    return false;
}

Texture2D* MeshMaterialCache::getMeshMaterial(std::string_view key)
{
    auto itr = _materials.find(key);
    if (itr != _materials.end())
    {
        return itr->second;
    }
    return nullptr;
}

void MeshMaterialCache::removeAllMeshMaterial()
{
    for (auto&& itr : _materials)
    {
        AX_SAFE_RELEASE_NULL(itr.second);
    }
    _materials.clear();
}
void MeshMaterialCache::removeUnusedMeshMaterial()
{
    for (auto it = _materials.cbegin(), itCend = _materials.cend(); it != itCend; /* nothing */)
    {
        auto value = it->second;
        if (value->getReferenceCount() == 1)
        {
            AXLOG("cocos2d: MeshMaterialCache: removing unused mesh renderer materials.");

            value->release();
            it = _materials.erase(it);
        }
        else
        {
            ++it;
        }
    }
}

NS_AX_END