Method CreateFromTexture

trinity/Resources/TriTextureRes.cpp:1031–1068

}

BlueStdResult TriTextureRes::CreateFromTexture( TriTextureRes* texture )
{
	if( this == texture )
	{
		return BLUE_STD_RESULT_OK;
	}
	if( !texture || !texture->IsGood() || !texture->GetTexture() )
	{
		return BlueStdResult( BLUE_STD_RESULT_VALUE_ERROR, "invalid texture" );
	}
	if( !Tr2Renderer::IsResourceCreationAllowed() )
	{
		return BlueStdResult( BLUE_STD_RESULT_RUNTIME_ERROR, "resource creation is not allowed at this time" );
	}

	DestroyOwnTexture();

	auto& other = *texture->GetTexture();
	auto width = other.GetWidth();
	auto height = other.GetHeight();

	USE_MAIN_THREAD_RENDER_CONTEXT();

	Tr2BitmapDimensions bd( other.GetDesc() );

	CR_RETURN_VAL( m_ownTexture.Create(
					   Tr2BitmapDimensions( width, height, other.GetTrueMipCount(), other.GetFormat() ),
					   Tr2GpuUsage::SHADER_RESOURCE | Tr2GpuUsage::COPY_DESTINATION,
					   Tr2CpuUsage::READ,
					   renderContext ),
				   BlueStdResult( BLUE_STD_RESULT_RUNTIME_ERROR, "could not create a texture" ) );

	CR_RETURN_VAL(
		m_ownTexture.CopySubresourceRegion( Tr2TextureSubresource(), other, Tr2TextureSubresource(), renderContext ),
		BlueStdResult( BLUE_STD_RESULT_RUNTIME_ERROR, "could not copy a texture" ) );
	m_isTextureResizable = false;
	return BLUE_STD_RESULT_OK;
}

bool TriTextureRes::Create( uint32_t width,
							uint32_t height,