/// <summary> /// Function to create a index buffer. /// </summary> /// <param name="name">The name of the buffer.</param> /// <param name="settings">The settings for the buffer.</param> /// <param name="initialData">[Optional] Initial data to populate the index buffer with.</param> /// <returns>A new index buffer.</returns> /// <remarks>This method should only be called from an immediate graphics context, if it is called from a deferred context an exception will be thrown.</remarks> /// <exception cref="System.ArgumentNullException">Thrown when the <paramref name="name"/> parameter is NULL (Nothing in VB.Net). /// <para>-or-</para> /// <para>Thrown when the <paramref name="settings"/> parameter is NULL.</para> /// </exception> /// <exception cref="System.ArgumentException">Thrown when the <paramref name="name"/> parameter is empty.</exception> /// <exception cref="GorgonLibrary.GorgonException">Thrown when the <see cref="GorgonLibrary.Graphics.GorgonIndexBufferSettings.IsOutput">IsOutput</see> property is TRUE and has a usage that is not Default. /// <para>-or-</para> /// <para>Thrown when the <see cref="GorgonLibrary.Graphics.GorgonIndexBufferSettings.SizeInBytes">SizeInBytes</see> property of the <paramref name="settings"/> parameter is less than 1.</para> /// <para>-or-</para> /// <para>Thrown when the usage is set to immutable and the <paramref name="initialData"/> parameter is NULL (Nothing in VB.Net) or has no data.</para> /// </exception> public GorgonIndexBuffer CreateIndexBuffer(string name, GorgonIndexBufferSettings settings, GorgonDataStream initialData = null) { if (_graphics.IsDeferred) { throw new GorgonException(GorgonResult.CannotCreate, Resources.GORGFX_CANNOT_USE_DEFERRED_CONTEXT); } if (settings == null) { throw new ArgumentNullException("settings"); } if (settings.SizeInBytes < 1) { throw new GorgonException(GorgonResult.CannotCreate, string.Format(Resources.GORGFX_BUFFER_SIZE_TOO_SMALL, 1)); } if ((settings.Usage == BufferUsage.Immutable) && ((initialData == null) || (initialData.Length == 0))) { throw new GorgonException(GorgonResult.CannotCreate, Resources.GORGFX_BUFFER_IMMUTABLE_REQUIRES_DATA); } ValidateGenericBufferSettings(settings); var buffer = new GorgonIndexBuffer(_graphics, name, settings); buffer.Initialize(initialData); _graphics.AddTrackedObject(buffer); return(buffer); }
/// <summary> /// Function to set the current index buffer, with an offset inside the buffer. /// </summary> /// <param name="buffer">Buffer to set.</param> /// <param name="offset">Offset into the buffer to use, in bytes.</param> public void SetIndexBuffer(GorgonIndexBuffer buffer, int offset) { if (_indexBuffer == buffer) { return; } #if DEBUG if ((buffer != null) && ((offset >= buffer.SizeInBytes) || (offset < 0))) { throw new ArgumentOutOfRangeException("offset", string.Format(Resources.GORGFX_VALUE_OUT_OF_RANGE, offset, buffer.SizeInBytes)); } #endif if (buffer != null) { _graphics.Context.InputAssembler.SetIndexBuffer((D3D.Buffer)buffer.D3DResource, buffer.Settings.Use32BitIndices ? GI.Format.R32_UInt : GI.Format.R16_UInt, offset); } else { _graphics.Context.InputAssembler.SetIndexBuffer(null, GI.Format.Unknown, 0); } _indexBuffer = buffer; }
/// <summary> /// Initializes a new instance of the <see cref="GorgonBufferUnorderedAccessView"/> class. /// </summary> /// <param name="resource">The buffer to bind to the view.</param> /// <param name="format">The format of the view.</param> /// <param name="firstElement">The first element in the buffer.</param> /// <param name="elementCount">The number of elements to view.</param> /// <param name="isRaw">TRUE if the view should be a raw view, FALSE if not.</param> internal GorgonBufferUnorderedAccessView(GorgonResource resource, BufferFormat format, int firstElement, int elementCount, bool isRaw) : base(resource, format) { IsRaw = isRaw; ElementStart = firstElement; ElementCount = elementCount; _buffer = resource as GorgonBuffer; _indexBuffer = resource as GorgonIndexBuffer; _vertexBuffer = resource as GorgonVertexBuffer; }
/// <summary> /// Function to reset the states for the input assembler. /// </summary> internal void Reset() { _graphics.Context.InputAssembler.SetIndexBuffer(null, GI.Format.Unknown, 0); VertexBuffers.Reset(); _graphics.Context.InputAssembler.PrimitiveTopology = (PrimitiveTopology.TriangleList); _graphics.Context.InputAssembler.InputLayout = null; _indexBuffer = null; _inputLayout = null; _primitiveType = PrimitiveType.TriangleList; }
/// <summary> /// Initializes a new instance of the <see cref="GorgonBufferShaderView"/> class. /// </summary> /// <param name="buffer">The buffer to bind to the view.</param> /// <param name="format">Format of the view.</param> /// <param name="elementStart">The starting element for the view.</param> /// <param name="elementCount">The number of elements in the view.</param> /// <param name="isRaw">TRUE to use a raw view, FALSE to use a normal view.</param> internal GorgonBufferShaderView(GorgonResource buffer, BufferFormat format, int elementStart, int elementCount, bool isRaw) : base(buffer, format) { IsRaw = isRaw; ElementStart = elementStart; ElementCount = elementCount; _buffer = buffer as GorgonBuffer; _structuredBuffer = buffer as GorgonStructuredBuffer; _indexBuffer = buffer as GorgonIndexBuffer; _vertexBuffer = buffer as GorgonVertexBuffer; }