92 lines
4.0 KiB
C#
92 lines
4.0 KiB
C#
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// Copyright (c) 2010-2014 SharpDX - Alexandre Mutel
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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namespace SharpDX.WIC
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{
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public partial class Palette
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{
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/// <summary>
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/// Initializes a new instance of the <see cref="Palette"/> class.
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/// </summary>
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/// <param name="factory">The factory.</param>
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/// <msdn-id>ee690319</msdn-id>
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/// <unmanaged>HRESULT IWICImagingFactory::CreatePalette([Out, Fast] IWICPalette** ppIPalette)</unmanaged>
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/// <unmanaged-short>IWICImagingFactory::CreatePalette</unmanaged-short>
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public Palette(ImagingFactory factory)
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: base(IntPtr.Zero)
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{
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factory.CreatePalette(this);
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}
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/// <summary>
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/// Initializes with the specified colors.
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/// </summary>
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/// <typeparam name="T">Type of the color (must be 4 bytes, RGBA)</typeparam>
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/// <param name="colors">The colors.</param>
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/// <exception cref="System.ArgumentException">Color type must be 4 bytes</exception>
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/// <msdn-id>ee719750</msdn-id>
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/// <unmanaged>HRESULT IWICPalette::InitializeCustom([In, Buffer] void* pColors,[In] unsigned int cCount)</unmanaged>
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/// <unmanaged-short>IWICPalette::InitializeCustom</unmanaged-short>
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public unsafe void Initialize<T>(T[] colors) where T : struct
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{
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if (Utilities.SizeOf<T>() != 4)
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throw new ArgumentException("Color type must be 4 bytes RGBA");
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void* pColors = Interop.Fixed(colors);
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Initialize((IntPtr)pColors, colors.Length);
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}
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/// <summary>
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/// Gets the colors.
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/// </summary>
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/// <msdn-id>ee719744</msdn-id>
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/// <unmanaged>HRESULT IWICPalette::GetColors([In] unsigned int cCount,[Out, Buffer] void* pColors,[Out] unsigned int* pcActualColors)</unmanaged>
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/// <unmanaged-short>IWICPalette::GetColors</unmanaged-short>
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public T[] GetColors<T>() where T : struct
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{
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if (Utilities.SizeOf<T>() != 4)
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throw new ArgumentException("Color type must be 4 bytes RGBA");
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unsafe
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{
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//http://msdn.microsoft.com/en-us/library/windows/desktop/ee719741(v=vs.85).aspx
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int actualCount;
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int count = this.ColorCount;
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var rawColors = new T[count];
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{
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void* pColors = Interop.Fixed(rawColors);
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GetColors(count, (IntPtr)pColors, out actualCount);
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}
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if (actualCount == 0)
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return new T[0];
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if (count != actualCount)
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{
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rawColors = new T[actualCount];
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void* pColors = Interop.Fixed(rawColors);
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GetColors(actualCount, (IntPtr)pColors, out actualCount);
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}
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return rawColors;
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}
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}
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}
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}
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