Exemplo n.º 1
0
        private void PrepareBuffers(int count)
        {
            List <Buffer> toRelease = new List <Buffer>();

            for (int i = 0; i < count; i++)
            {
                toRelease.Add(allocator.GetTemporaryBuffer(defaultDescription));
            }

            for (int i = 0; i < count; i++)
            {
                allocator.ReleaseReference(toRelease[i]);
            }
        }
Exemplo n.º 2
0
        internal BufferPool(GraphicsResourceAllocator allocator, GraphicsDevice graphicsDevice, int size, CommandList clist = null)
        {
            constantBufferAlignment = graphicsDevice.ConstantBufferDataPlacementAlignment;
            if (size % constantBufferAlignment != 0)
            {
                throw new ArgumentException($"size needs to be a multiple of constant buffer alignment ({constantBufferAlignment})", nameof(size));
            }

            this.allocator = allocator;

            Size = size;
            if (!UseBufferOffsets)
            {
                Data = Marshal.AllocHGlobal(size);
            }

            this.commandList = clist;

#if XENKO_GRAPHICS_API_VULKAN
            constantBuffer = new Buffer[BUFFERS_PER_POOL];
            for (int i = 0; i < constantBuffer.Length; i++)
            {
                constantBuffer[i] = allocator.GetTemporaryBuffer(new BufferDescription(Size, BufferFlags.ConstantBuffer, GraphicsResourceUsage.Dynamic));
            }
#else
            constantBuffer = new Buffer[1];
#endif
            Reset();
        }
Exemplo n.º 3
0
        internal BufferPool(GraphicsResourceAllocator allocator, GraphicsDevice graphicsDevice, int size, CommandList clist = null)
        {
            constantBufferAlignment = graphicsDevice.ConstantBufferDataPlacementAlignment;
            if (size % constantBufferAlignment != 0)
            {
                throw new ArgumentException($"size needs to be a multiple of constant buffer alignment ({constantBufferAlignment})", nameof(size));
            }

            this.allocator = allocator;

            Size = size;
            if (!UseBufferOffsets)
            {
                Data = Marshal.AllocHGlobal(size);
            }

            this.commandList = clist;

#if XENKO_GRAPHICS_API_VULKAN
            // make buffers now, so we don't have to during gameplay which can cause threading / performance problems
            // eats some memory up, but memory is cheap compared to CPU / stability
            if (PreallocatedBuffers == null)
            {
                PreallocatedBuffers = new Stack <Buffer>();
                for (int i = 0; i < BUFFERS_PER_POOL * POOL_PREALLOCATION; i++)
                {
                    PreallocatedBuffers.Push(allocator.GetTemporaryBuffer(new BufferDescription(Size, BufferFlags.ConstantBuffer, GraphicsResourceUsage.Dynamic)));
                }
            }

            // pick our buffers, hopefully from preallocated pool
            constantBuffer = new Buffer[BUFFERS_PER_POOL];
            for (int i = 0; i < constantBuffer.Length; i++)
            {
                constantBuffer[i] = PreallocatedBuffers.Count > 0 ? PreallocatedBuffers.Pop() :
                                    allocator.GetTemporaryBuffer(new BufferDescription(Size, BufferFlags.ConstantBuffer, GraphicsResourceUsage.Dynamic));
            }
#else
            constantBuffer = new Buffer[1];
#endif
            Reset();
        }
Exemplo n.º 4
0
        public void Reset()
        {
            if (UseBufferOffsets)
            {
                // Release previous buffer
                if (constantBuffer != null)
                {
                    allocator.ReleaseReference(constantBuffer);
                }

                constantBuffer = allocator.GetTemporaryBuffer(new BufferDescription(Size, BufferFlags.ConstantBuffer, GraphicsResourceUsage.Dynamic));
            }

            bufferAllocationOffset = 0;
        }
Exemplo n.º 5
0
        public void Reset()
        {
#if !XENKO_GRAPHICS_API_VULKAN
            // Release previous buffer
            if (constantBuffer[bufferIndex] != null)
            {
                allocator.ReleaseReference(constantBuffer[bufferIndex]);
            }

            constantBuffer[bufferIndex] = allocator.GetTemporaryBuffer(new BufferDescription(Size, BufferFlags.ConstantBuffer, GraphicsResourceUsage.Dynamic));
#else
            bufferIndex = (bufferIndex + 1) % constantBuffer.Length;
#endif
            bufferAllocationOffset = 0;
        }