TextureManager.cpp

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#include <tdme/engine/subsystems/manager/TextureManager.h>
 
#include <string>
#include <unordered_map>
 
#include <tdme/tdme.h>
#include <tdme/engine/Texture.h>
#include <tdme/engine/subsystems/manager/TextureManager_TextureManaged.h>
#include <tdme/engine/subsystems/renderer/Renderer.h>
#include <tdme/os/threading/Mutex.h>
#include <tdme/utilities/Console.h>
 
using std::string;
using std::unordered_map;
 
using tdme::engine::Texture;
using tdme::engine::subsystems::manager::TextureManager;
using tdme::engine::subsystems::manager::TextureManager_TextureManaged;
using tdme::engine::subsystems::renderer::Renderer;
using tdme::os::threading::Mutex;
using tdme::utilities::Console;;
 
TextureManager::TextureManager(Renderer* renderer): mutex("texturemanager-mutex") {
    this->renderer = renderer;
}
 
TextureManager::~TextureManager() {
    for (const auto& [textureManagedId, textureManaged]: textures) delete textureManaged;
}
 
TextureManager_TextureManaged* TextureManager::addTexture(const string& id, bool& created)
{
    // check if we already manage this texture
    mutex.lock();
    auto textureManagedIt = textures.find(id);
    if (textureManagedIt != textures.end()) {
        //
        auto textureManaged = textureManagedIt->second;
        textureManaged->incrementReferenceCounter();
        mutex.unlock();
        // yep, return renderer texture id
        created = false;
        return textureManaged;
    }
    // create texture
    auto textureId = renderer->createTexture();
    // create managed texture
    auto textureManaged = new TextureManager_TextureManaged(id, textureId);
    // add it to our textures
    textureManaged->incrementReferenceCounter();
    textures[id] = textureManaged;
    //
    mutex.unlock();
    //
    created = true;
    return textureManaged;
}
 
int32_t TextureManager::addTexture(Texture* texture, int contextIdx)
{
    bool created;
    auto textureManaged = addTexture(texture->getId(), created);
    auto rendererId = textureManaged->getRendererId();
 
    // upload if it was created
    if (created == true) {
        // bind texture
        renderer->bindTexture(contextIdx, rendererId);
        // upload texture
        renderer->uploadTexture(contextIdx, texture);
        // unbind texture
        renderer->bindTexture(contextIdx, renderer->ID_NONE);
        //
        textureManaged->setUploaded(true);
    }
 
    // return renderer id
    return rendererId;
}
 
int32_t TextureManager::addCubeMapTexture(const string& id, Texture* textureLeft, Texture* textureRight, Texture* textureTop, Texture* textureBottom, Texture* textureFront, Texture* textureBack, int contextIdx)
{
    bool created;
    auto textureManaged = addTexture(id, created);
    auto rendererId = textureManaged->getRendererId();
 
    // upload if it was created
    if (created == true) {
        // bind texture
        renderer->bindCubeMapTexture(contextIdx, rendererId);
        // upload texture
        renderer->uploadCubeMapTexture(contextIdx, textureLeft, textureRight, textureTop, textureBottom, textureFront, textureBack);
        // unbind texture
        renderer->bindCubeMapTexture(contextIdx, renderer->ID_NONE);
        //
        textureManaged->setUploaded(true);
    }
 
    // return renderer id
    return rendererId;
}
 
void TextureManager::removeTexture(const string& textureId)
{
    mutex.lock();
    auto textureManagedIt = textures.find(textureId);
    if (textureManagedIt != textures.end()) {
        auto textureManaged = textureManagedIt->second;
        if (textureManaged->decrementReferenceCounter()) {
            // delete texture
            auto textureRendererId = textureManaged->getRendererId();
            // remove from our list
            textures.erase(textureManagedIt);
            //
            mutex.unlock();
            // remove from renderer
            renderer->disposeTexture(textureRendererId);
            delete textureManaged;
            //
            return;
        }
        //
        mutex.unlock();
        return;
    }
    mutex.unlock();
    Console::println(string("Warning: texture not loaded by texture manager: " + textureId));
}