Example #1
0
        private void PostFrameBuffer(Layer layer, BufferItem item)
        {
            int frameBufferWidth  = item.GraphicBuffer.Object.Width;
            int frameBufferHeight = item.GraphicBuffer.Object.Height;

            int nvMapHandle = item.GraphicBuffer.Object.Buffer.Surfaces[0].NvMapHandle;

            if (nvMapHandle == 0)
            {
                nvMapHandle = item.GraphicBuffer.Object.Buffer.NvMapId;
            }

            ulong bufferOffset = (ulong)item.GraphicBuffer.Object.Buffer.Surfaces[0].Offset;

            NvMapHandle map = NvMapDeviceFile.GetMapFromHandle(layer.Owner, nvMapHandle);

            ulong frameBufferAddress = map.Address + bufferOffset;

            Format format = ConvertColorFormat(item.GraphicBuffer.Object.Buffer.Surfaces[0].ColorFormat);

            int bytesPerPixel =
                format == Format.B5G6R5Unorm ||
                format == Format.R4G4B4A4Unorm ? 2 : 4;

            int gobBlocksInY = 1 << item.GraphicBuffer.Object.Buffer.Surfaces[0].BlockHeightLog2;

            // Note: Rotation is being ignored.
            Rect cropRect = item.Crop;

            bool flipX = item.Transform.HasFlag(NativeWindowTransform.FlipX);
            bool flipY = item.Transform.HasFlag(NativeWindowTransform.FlipY);

            AspectRatio aspectRatio = ConfigurationState.Instance.Graphics.AspectRatio.Value;
            bool        isStretched = aspectRatio == AspectRatio.Stretched;

            ImageCrop crop = new ImageCrop(
                cropRect.Left,
                cropRect.Right,
                cropRect.Top,
                cropRect.Bottom,
                flipX,
                flipY,
                isStretched,
                aspectRatio.ToFloatX(),
                aspectRatio.ToFloatY());

            TextureCallbackInformation textureCallbackInformation = new TextureCallbackInformation
            {
                Layer = layer,
                Item  = item
            };

            if (item.Fence.FenceCount == 0)
            {
                _device.Gpu.Window.SignalFrameReady();
                _device.Gpu.GPFifo.Interrupt();
            }
            else
            {
                item.Fence.RegisterCallback(_device.Gpu, () =>
                {
                    _device.Gpu.Window.SignalFrameReady();
                    _device.Gpu.GPFifo.Interrupt();
                });
            }

            _device.Gpu.Window.EnqueueFrameThreadSafe(
                frameBufferAddress,
                frameBufferWidth,
                frameBufferHeight,
                0,
                false,
                gobBlocksInY,
                format,
                bytesPerPixel,
                crop,
                AcquireBuffer,
                ReleaseBuffer,
                textureCallbackInformation);
        }
 public static float ToFloat(this AspectRatio aspectRatio)
 {
     return(aspectRatio.ToFloatX() / aspectRatio.ToFloatY());
 }