C++ (Cpp) TexturePtr::unload Examples

Example #1

File: UiManager.cpp Project: advancingu/Cutexture

	void UiManager::resizeTexture(const QSize &aSize, const Ogre::MaterialPtr &aMaterial, const Ogre::TexturePtr &aTexture)
	{
		assert(!aMaterial.isNull());
		assert(!aTexture.isNull());
		
		// get the smallest power of two dimension that is at least as large as the new UI size
		Ogre::uint newTexWidth = nextHigherPowerOfTwo(aSize.width());
		Ogre::uint newTexHeight = nextHigherPowerOfTwo(aSize.height());
	
		if (!aTexture.isNull())
		{
			std::string txtrName = aTexture->getName();
			
			// remove the old texture
			aTexture->unload();
			aMaterial->getTechnique(0)->getPass(0)->removeAllTextureUnitStates();
			Ogre::TextureManager::getSingleton().remove(aTexture->getHandle());
	
			Ogre::TexturePtr newTxtr = Ogre::TextureManager::getSingleton().createManual(
					txtrName, "General", Ogre::TEX_TYPE_2D, newTexWidth, newTexHeight, 0, Ogre::PF_A8R8G8B8,
					Ogre::TU_DYNAMIC_WRITE_ONLY);
	
			// add the new texture
			Ogre::TextureUnitState* txtrUstate = aMaterial->getTechnique(0)->getPass(0)->createTextureUnitState(txtrName);
	
			// adjust it to stay aligned and scaled to the window
			Ogre::Real txtrUScale = (Ogre::Real)newTexWidth / aSize.width();
			Ogre::Real txtrVScale = (Ogre::Real)newTexHeight / aSize.height();
			txtrUstate->setTextureScale(txtrUScale, txtrVScale);
			txtrUstate->setTextureScroll((1 / txtrUScale) / 2 - 0.5, (1 / txtrVScale) / 2 - 0.5);
		}
	}

Example #2

File: VisCalcFrustDist.cpp Project: Misterblue/LookingGlass-Viewer

// unload all about this mesh. The mesh itself and the textures.
// BETWEEN FRAME OPERATION
void VisCalcFrustDist::unloadTheMesh(Ogre::MeshPtr meshP) {
	if (m_shouldCullTextures) {
		Ogre::Mesh::SubMeshIterator smi = meshP->getSubMeshIterator();
		while (smi.hasMoreElements()) {
			Ogre::SubMesh* oneSubMesh = smi.getNext();
			Ogre::String subMeshMaterialName = oneSubMesh->getMaterialName();
			Ogre::MaterialPtr subMeshMaterial = (Ogre::MaterialPtr)Ogre::MaterialManager::getSingleton().getByName(subMeshMaterialName);
			if (!subMeshMaterial.isNull()) {
				Ogre::Material::TechniqueIterator techIter = subMeshMaterial->getTechniqueIterator();
				while (techIter.hasMoreElements()) {
					Ogre::Technique* oneTech = techIter.getNext();
					Ogre::Technique::PassIterator passIter = oneTech->getPassIterator();
					while (passIter.hasMoreElements()) {
						Ogre::Pass* onePass = passIter.getNext();
						Ogre::Pass::TextureUnitStateIterator tusIter = onePass->getTextureUnitStateIterator();
						while (tusIter.hasMoreElements()) {
							Ogre::TextureUnitState* oneTus = tusIter.getNext();
							Ogre::String texName = oneTus->getTextureName();
							Ogre::TexturePtr texP = (Ogre::TexturePtr)Ogre::TextureManager::getSingleton().getByName(texName);
							if (!texP.isNull()) {
								// if (texP.useCount() <= 1) {
									texP->unload();
									LG::IncStat(LG::StatCullTexturesUnloaded);
									// LG::Log("unloadTheMesh: unloading texture %s", texName.c_str());
								// }
							}
						}
					}
				}
			}
		}
	}
	if (m_shouldCullMeshes) {
		LG::OLMeshTracker::Instance()->MakeUnLoaded(meshP->getName(), Ogre::String(), NULL);
		LG::IncStat(LG::StatCullMeshesUnloaded);
		// LG::Log("unloadTheMesh: unloading mesh %s", mshName.c_str());
	}
}

Example #3

File: savegamedialog.cpp Project: 0xmono/openmw

void SaveGameDialog::onSlotSelected(MyGUI::ListBox *sender, size_t pos)
{
    if (pos == MyGUI::ITEM_NONE)
    {
        mCurrentSlot = NULL;
        mInfoText->setCaption("");
        mScreenshot->setImageTexture("");
        return;
    }

    if (mSaving)
        mSaveNameEdit->setCaption(sender->getItemNameAt(pos));

    mCurrentSlot = NULL;
    unsigned int i=0;
    for (MWState::Character::SlotIterator it = mCurrentCharacter->begin(); it != mCurrentCharacter->end(); ++it, ++i)
    {
        if (i == pos)
            mCurrentSlot = &*it;
    }
    assert(mCurrentSlot && "Can't find selected slot");

    std::stringstream text;
    time_t time = mCurrentSlot->mTimeStamp;
    struct tm* timeinfo;
    timeinfo = localtime(&time);

    // Use system/environment locale settings for datetime formatting
    setlocale(LC_TIME, "");

    const int size=1024;
    char buffer[size];
    if (std::strftime(buffer, size, "%x %X", timeinfo) > 0)
        text << buffer << "\n";
    text << "Level " << mCurrentSlot->mProfile.mPlayerLevel << "\n";
    text << mCurrentSlot->mProfile.mPlayerCell << "\n";
    // text << "Time played: " << slot->mProfile.mTimePlayed << "\n";

    int hour = int(mCurrentSlot->mProfile.mInGameTime.mGameHour);
    bool pm = hour >= 12;
    if (hour >= 13) hour -= 12;
    if (hour == 0) hour = 12;

    text
            << mCurrentSlot->mProfile.mInGameTime.mDay << " "
            << MWBase::Environment::get().getWorld()->getMonthName(mCurrentSlot->mProfile.mInGameTime.mMonth)
            <<  " " << hour << " " << (pm ? "#{sSaveMenuHelp05}" : "#{sSaveMenuHelp04}");

    mInfoText->setCaptionWithReplacing(text.str());

    // Decode screenshot
    std::vector<char> data = mCurrentSlot->mProfile.mScreenshot; // MemoryDataStream doesn't work with const data :(
    Ogre::DataStreamPtr stream(new Ogre::MemoryDataStream(&data[0], data.size()));
    Ogre::Image image;
    image.load(stream, "jpg");

    const std::string textureName = "@savegame_screenshot";
    Ogre::TexturePtr texture;
    texture = Ogre::TextureManager::getSingleton().getByName(textureName);
    mScreenshot->setImageTexture("");
    if (texture.isNull())
    {
        texture = Ogre::TextureManager::getSingleton().createManual(textureName,
                  Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
                  Ogre::TEX_TYPE_2D,
                  image.getWidth(), image.getHeight(), 0, Ogre::PF_BYTE_RGBA, Ogre::TU_DYNAMIC_WRITE_ONLY);
    }
    texture->unload();
    texture->setWidth(image.getWidth());
    texture->setHeight(image.getHeight());
    texture->loadImage(image);

    mScreenshot->setImageTexture(textureName);
}