BindLessTextureManager.cpp

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/**
* @file BindLessTextureManager.cpp
* @brief The BindLessTextureManager Class Implementation.
* @author Spices.
*/
 
#include "Pchheader.h"
#include "BindLessTextureManager.h"
#include "Render/Vulkan/VulkanRenderBackend.h"
#include "../../../assets/Shaders/src/Header/ShaderCommon.h"
 
namespace Spices {
 
    std::unordered_map<std::string, uint32_t> BindLessTextureManager::m_TextureIDMap;
    std::unordered_map<uint32_t, std::string> BindLessTextureManager::m_TextureInfoMap;
    std::mutex BindLessTextureManager::m_Mutex;
 
    uint32_t BindLessTextureManager::Registry(const std::string& name)
    {
        SPICES_PROFILE_ZONE;
 
        std::unique_lock<std::mutex> lock(m_Mutex);
 
        /**
        * @brief Return ID if texture already registry.
        */
        if (m_TextureIDMap.find(name) != m_TextureIDMap.end())
        {
            return m_TextureIDMap[name];
        }
 
        /**
        * @brief Find a empty slot to store texture.
        */
        else
        {
            for (uint32_t i = 0; i < SpicesShader::BINDLESS_TEXTURE_MAXNUM; i++)
            {
                if (m_TextureInfoMap.find(i) == m_TextureInfoMap.end())
                {
                    m_TextureInfoMap[i] = "";
                    m_TextureIDMap[name] = i;
                    return i;
                }
            }
 
            SPICES_CORE_ERROR("Up to Maxium Bindless Texture Number : 65536")
 
            return 0;
        }
    }
 
    void BindLessTextureManager::UnRegistry(const std::string& name)
    {
        SPICES_PROFILE_ZONE;
 
        std::unique_lock<std::mutex> lock(m_Mutex);
 
        if (m_TextureIDMap.find(name) != m_TextureIDMap.end())
        {
            m_TextureInfoMap.erase(m_TextureIDMap[name]);
            m_TextureIDMap.erase(name);
        }
    }
}