corrade-vassal – Blame information for rev 1
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1 | vero | 1 | /* |
2 | * Copyright (c) 2006-2014, openmetaverse.org |
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3 | * All rights reserved. |
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4 | * |
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5 | * - Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions are met: |
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7 | * |
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8 | * - Redistributions of source code must retain the above copyright notice, this |
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9 | * list of conditions and the following disclaimer. |
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10 | * - Neither the name of the openmetaverse.org nor the names |
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11 | * of its contributors may be used to endorse or promote products derived from |
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12 | * this software without specific prior written permission. |
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13 | * |
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14 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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15 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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18 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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19 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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20 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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21 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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22 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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23 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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24 | * POSSIBILITY OF SUCH DAMAGE. |
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25 | */ |
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26 | |||
27 | using System; |
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28 | |||
29 | namespace OpenMetaverse.Imaging |
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30 | { |
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31 | public class ManagedImage |
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32 | { |
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33 | [Flags] |
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34 | public enum ImageChannels |
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35 | { |
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36 | Gray = 1, |
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37 | Color = 2, |
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38 | Alpha = 4, |
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39 | Bump = 8 |
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40 | }; |
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41 | |||
42 | public enum ImageResizeAlgorithm |
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43 | { |
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44 | NearestNeighbor |
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45 | } |
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46 | |||
47 | /// <summary> |
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48 | /// Image width |
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49 | /// </summary> |
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50 | public int Width; |
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51 | |||
52 | /// <summary> |
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53 | /// Image height |
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54 | /// </summary> |
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55 | public int Height; |
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56 | |||
57 | /// <summary> |
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58 | /// Image channel flags |
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59 | /// </summary> |
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60 | public ImageChannels Channels; |
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61 | |||
62 | /// <summary> |
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63 | /// Red channel data |
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64 | /// </summary> |
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65 | public byte[] Red; |
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66 | |||
67 | /// <summary> |
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68 | /// Green channel data |
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69 | /// </summary> |
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70 | public byte[] Green; |
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71 | |||
72 | /// <summary> |
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73 | /// Blue channel data |
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74 | /// </summary> |
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75 | public byte[] Blue; |
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76 | |||
77 | /// <summary> |
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78 | /// Alpha channel data |
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79 | /// </summary> |
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80 | public byte[] Alpha; |
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81 | |||
82 | /// <summary> |
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83 | /// Bump channel data |
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84 | /// </summary> |
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85 | public byte[] Bump; |
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86 | |||
87 | /// <summary> |
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88 | /// Create a new blank image |
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89 | /// </summary> |
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90 | /// <param name="width">width</param> |
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91 | /// <param name="height">height</param> |
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92 | /// <param name="channels">channel flags</param> |
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93 | public ManagedImage(int width, int height, ImageChannels channels) |
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94 | { |
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95 | Width = width; |
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96 | Height = height; |
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97 | Channels = channels; |
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98 | |||
99 | int n = width * height; |
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100 | |||
101 | if ((channels & ImageChannels.Gray) != 0) |
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102 | { |
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103 | Red = new byte[n]; |
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104 | } |
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105 | else if ((channels & ImageChannels.Color) != 0) |
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106 | { |
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107 | Red = new byte[n]; |
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108 | Green = new byte[n]; |
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109 | Blue = new byte[n]; |
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110 | } |
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111 | |||
112 | if ((channels & ImageChannels.Alpha) != 0) |
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113 | Alpha = new byte[n]; |
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114 | |||
115 | if ((channels & ImageChannels.Bump) != 0) |
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116 | Bump = new byte[n]; |
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117 | } |
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118 | |||
119 | #if !NO_UNSAFE |
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120 | /// <summary> |
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121 | /// |
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122 | /// </summary> |
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123 | /// <param name="bitmap"></param> |
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124 | public ManagedImage(System.Drawing.Bitmap bitmap) |
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125 | { |
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126 | Width = bitmap.Width; |
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127 | Height = bitmap.Height; |
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128 | |||
129 | int pixelCount = Width * Height; |
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130 | |||
131 | if (bitmap.PixelFormat == System.Drawing.Imaging.PixelFormat.Format32bppArgb) |
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132 | { |
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133 | Channels = ImageChannels.Alpha | ImageChannels.Color; |
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134 | Red = new byte[pixelCount]; |
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135 | Green = new byte[pixelCount]; |
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136 | Blue = new byte[pixelCount]; |
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137 | Alpha = new byte[pixelCount]; |
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138 | |||
139 | System.Drawing.Imaging.BitmapData bd = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, Width, Height), |
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140 | System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb); |
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141 | |||
142 | unsafe |
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143 | { |
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144 | byte* pixel = (byte*)bd.Scan0; |
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145 | |||
146 | for (int i = 0; i < pixelCount; i++) |
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147 | { |
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148 | // GDI+ gives us BGRA and we need to turn that in to RGBA |
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149 | Blue[i] = *(pixel++); |
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150 | Green[i] = *(pixel++); |
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151 | Red[i] = *(pixel++); |
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152 | Alpha[i] = *(pixel++); |
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153 | } |
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154 | } |
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155 | |||
156 | bitmap.UnlockBits(bd); |
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157 | } |
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158 | else if (bitmap.PixelFormat == System.Drawing.Imaging.PixelFormat.Format16bppGrayScale) |
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159 | { |
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160 | Channels = ImageChannels.Gray; |
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161 | Red = new byte[pixelCount]; |
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162 | |||
163 | throw new NotImplementedException("16bpp grayscale image support is incomplete"); |
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164 | } |
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165 | else if (bitmap.PixelFormat == System.Drawing.Imaging.PixelFormat.Format24bppRgb) |
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166 | { |
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167 | Channels = ImageChannels.Color; |
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168 | Red = new byte[pixelCount]; |
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169 | Green = new byte[pixelCount]; |
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170 | Blue = new byte[pixelCount]; |
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171 | |||
172 | System.Drawing.Imaging.BitmapData bd = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, Width, Height), |
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173 | System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb); |
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174 | |||
175 | unsafe |
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176 | { |
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177 | byte* pixel = (byte*)bd.Scan0; |
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178 | |||
179 | for (int i = 0; i < pixelCount; i++) |
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180 | { |
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181 | // GDI+ gives us BGR and we need to turn that in to RGB |
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182 | Blue[i] = *(pixel++); |
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183 | Green[i] = *(pixel++); |
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184 | Red[i] = *(pixel++); |
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185 | } |
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186 | } |
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187 | |||
188 | bitmap.UnlockBits(bd); |
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189 | } |
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190 | else if (bitmap.PixelFormat == System.Drawing.Imaging.PixelFormat.Format32bppRgb) |
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191 | { |
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192 | Channels = ImageChannels.Color; |
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193 | Red = new byte[pixelCount]; |
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194 | Green = new byte[pixelCount]; |
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195 | Blue = new byte[pixelCount]; |
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196 | |||
197 | System.Drawing.Imaging.BitmapData bd = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, Width, Height), |
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198 | System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppRgb); |
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199 | |||
200 | unsafe |
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201 | { |
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202 | byte* pixel = (byte*)bd.Scan0; |
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203 | |||
204 | for (int i = 0; i < pixelCount; i++) |
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205 | { |
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206 | // GDI+ gives us BGR and we need to turn that in to RGB |
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207 | Blue[i] = *(pixel++); |
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208 | Green[i] = *(pixel++); |
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209 | Red[i] = *(pixel++); |
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210 | pixel++; // Skip over the empty byte where the Alpha info would normally be |
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211 | } |
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212 | } |
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213 | |||
214 | bitmap.UnlockBits(bd); |
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215 | } |
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216 | else |
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217 | { |
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218 | throw new NotSupportedException("Unrecognized pixel format: " + bitmap.PixelFormat.ToString()); |
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219 | } |
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220 | } |
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221 | #endif |
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222 | |||
223 | /// <summary> |
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224 | /// Convert the channels in the image. Channels are created or destroyed as required. |
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225 | /// </summary> |
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226 | /// <param name="channels">new channel flags</param> |
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227 | public void ConvertChannels(ImageChannels channels) |
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228 | { |
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229 | if (Channels == channels) |
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230 | return; |
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231 | |||
232 | int n = Width * Height; |
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233 | ImageChannels add = Channels ^ channels & channels; |
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234 | ImageChannels del = Channels ^ channels & Channels; |
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235 | |||
236 | if ((add & ImageChannels.Color) != 0) |
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237 | { |
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238 | Red = new byte[n]; |
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239 | Green = new byte[n]; |
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240 | Blue = new byte[n]; |
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241 | } |
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242 | else if ((del & ImageChannels.Color) != 0) |
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243 | { |
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244 | Red = null; |
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245 | Green = null; |
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246 | Blue = null; |
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247 | } |
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248 | |||
249 | if ((add & ImageChannels.Alpha) != 0) |
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250 | { |
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251 | Alpha = new byte[n]; |
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252 | FillArray(Alpha, 255); |
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253 | } |
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254 | else if ((del & ImageChannels.Alpha) != 0) |
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255 | Alpha = null; |
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256 | |||
257 | if ((add & ImageChannels.Bump) != 0) |
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258 | Bump = new byte[n]; |
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259 | else if ((del & ImageChannels.Bump) != 0) |
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260 | Bump = null; |
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261 | |||
262 | Channels = channels; |
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263 | } |
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264 | |||
265 | /// <summary> |
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266 | /// Resize or stretch the image using nearest neighbor (ugly) resampling |
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267 | /// </summary> |
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268 | /// <param name="width">new width</param> |
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269 | /// <param name="height">new height</param> |
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270 | public void ResizeNearestNeighbor(int width, int height) |
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271 | { |
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272 | if (width == Width && height == Height) |
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273 | return; |
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274 | |||
275 | byte[] |
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276 | red = null, |
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277 | green = null, |
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278 | blue = null, |
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279 | alpha = null, |
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280 | bump = null; |
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281 | int n = width * height; |
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282 | int di = 0, si; |
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283 | |||
284 | if (Red != null) red = new byte[n]; |
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285 | if (Green != null) green = new byte[n]; |
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286 | if (Blue != null) blue = new byte[n]; |
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287 | if (Alpha != null) alpha = new byte[n]; |
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288 | if (Bump != null) bump = new byte[n]; |
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289 | |||
290 | for (int y = 0; y < height; y++) |
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291 | { |
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292 | for (int x = 0; x < width; x++) |
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293 | { |
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294 | si = (y * Height / height) * Width + (x * Width / width); |
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295 | if (Red != null) red[di] = Red[si]; |
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296 | if (Green != null) green[di] = Green[si]; |
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297 | if (Blue != null) blue[di] = Blue[si]; |
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298 | if (Alpha != null) alpha[di] = Alpha[si]; |
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299 | if (Bump != null) bump[di] = Bump[si]; |
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300 | di++; |
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301 | } |
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302 | } |
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303 | |||
304 | Width = width; |
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305 | Height = height; |
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306 | Red = red; |
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307 | Green = green; |
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308 | Blue = blue; |
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309 | Alpha = alpha; |
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310 | Bump = bump; |
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311 | } |
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312 | |||
313 | /// <summary> |
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314 | /// Create a byte array containing 32-bit RGBA data with a bottom-left |
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315 | /// origin, suitable for feeding directly into OpenGL |
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316 | /// </summary> |
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317 | /// <returns>A byte array containing raw texture data</returns> |
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318 | public byte[] ExportRaw() |
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319 | { |
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320 | byte[] raw = new byte[Width * Height * 4]; |
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321 | |||
322 | if ((Channels & ImageChannels.Alpha) != 0) |
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323 | { |
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324 | if ((Channels & ImageChannels.Color) != 0) |
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325 | { |
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326 | // RGBA |
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327 | for (int h = 0; h < Height; h++) |
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328 | { |
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329 | for (int w = 0; w < Width; w++) |
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330 | { |
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331 | int pos = (Height - 1 - h) * Width + w; |
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332 | int srcPos = h * Width + w; |
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333 | |||
334 | raw[pos * 4 + 0] = Red[srcPos]; |
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335 | raw[pos * 4 + 1] = Green[srcPos]; |
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336 | raw[pos * 4 + 2] = Blue[srcPos]; |
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337 | raw[pos * 4 + 3] = Alpha[srcPos]; |
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338 | } |
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339 | } |
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340 | } |
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341 | else |
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342 | { |
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343 | // Alpha only |
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344 | for (int h = 0; h < Height; h++) |
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345 | { |
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346 | for (int w = 0; w < Width; w++) |
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347 | { |
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348 | int pos = (Height - 1 - h) * Width + w; |
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349 | int srcPos = h * Width + w; |
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350 | |||
351 | raw[pos * 4 + 0] = Alpha[srcPos]; |
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352 | raw[pos * 4 + 1] = Alpha[srcPos]; |
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353 | raw[pos * 4 + 2] = Alpha[srcPos]; |
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354 | raw[pos * 4 + 3] = Byte.MaxValue; |
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355 | } |
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356 | } |
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357 | } |
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358 | } |
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359 | else |
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360 | { |
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361 | // RGB |
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362 | for (int h = 0; h < Height; h++) |
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363 | { |
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364 | for (int w = 0; w < Width; w++) |
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365 | { |
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366 | int pos = (Height - 1 - h) * Width + w; |
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367 | int srcPos = h * Width + w; |
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368 | |||
369 | raw[pos * 4 + 0] = Red[srcPos]; |
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370 | raw[pos * 4 + 1] = Green[srcPos]; |
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371 | raw[pos * 4 + 2] = Blue[srcPos]; |
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372 | raw[pos * 4 + 3] = Byte.MaxValue; |
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373 | } |
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374 | } |
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375 | } |
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376 | |||
377 | return raw; |
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378 | } |
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379 | |||
380 | /// <summary> |
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381 | /// Create a byte array containing 32-bit RGBA data with a bottom-left |
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382 | /// origin, suitable for feeding directly into OpenGL |
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383 | /// </summary> |
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384 | /// <returns>A byte array containing raw texture data</returns> |
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385 | public System.Drawing.Bitmap ExportBitmap() |
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386 | { |
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387 | byte[] raw = new byte[Width * Height * 4]; |
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388 | |||
389 | if ((Channels & ImageChannels.Alpha) != 0) |
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390 | { |
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391 | if ((Channels & ImageChannels.Color) != 0) |
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392 | { |
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393 | // RGBA |
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394 | for (int pos = 0; pos < Height * Width; pos++) |
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395 | { |
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396 | raw[pos * 4 + 0] = Blue[pos]; |
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397 | raw[pos * 4 + 1] = Green[pos]; |
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398 | raw[pos * 4 + 2] = Red[pos]; |
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399 | raw[pos * 4 + 3] = Alpha[pos]; |
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400 | } |
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401 | } |
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402 | else |
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403 | { |
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404 | // Alpha only |
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405 | for (int pos = 0; pos < Height * Width; pos++) |
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406 | { |
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407 | raw[pos * 4 + 0] = Alpha[pos]; |
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408 | raw[pos * 4 + 1] = Alpha[pos]; |
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409 | raw[pos * 4 + 2] = Alpha[pos]; |
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410 | raw[pos * 4 + 3] = Byte.MaxValue; |
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411 | } |
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412 | } |
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413 | } |
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414 | else |
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415 | { |
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416 | // RGB |
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417 | for (int pos = 0; pos < Height * Width; pos++) |
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418 | { |
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419 | raw[pos * 4 + 0] = Blue[pos]; |
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420 | raw[pos * 4 + 1] = Green[pos]; |
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421 | raw[pos * 4 + 2] = Red[pos]; |
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422 | raw[pos * 4 + 3] = Byte.MaxValue; |
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423 | } |
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424 | } |
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425 | |||
426 | System.Drawing.Bitmap b = new System.Drawing.Bitmap( |
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427 | Width, |
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428 | Height, |
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429 | System.Drawing.Imaging.PixelFormat.Format32bppArgb); |
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430 | |||
431 | System.Drawing.Imaging.BitmapData bd = b.LockBits(new System.Drawing.Rectangle(0, 0, b.Width, b.Height), |
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432 | System.Drawing.Imaging.ImageLockMode.WriteOnly, |
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433 | System.Drawing.Imaging.PixelFormat.Format32bppArgb); |
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434 | |||
435 | System.Runtime.InteropServices.Marshal.Copy(raw, 0, bd.Scan0, Width * Height * 4); |
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436 | |||
437 | b.UnlockBits(bd); |
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438 | |||
439 | return b; |
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440 | } |
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441 | |||
442 | public byte[] ExportTGA() |
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443 | { |
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444 | byte[] tga = new byte[Width * Height * ((Channels & ImageChannels.Alpha) == 0 ? 3 : 4) + 32]; |
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445 | int di = 0; |
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446 | tga[di++] = 0; // idlength |
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447 | tga[di++] = 0; // colormaptype = 0: no colormap |
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448 | tga[di++] = 2; // image type = 2: uncompressed RGB |
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449 | tga[di++] = 0; // color map spec is five zeroes for no color map |
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450 | tga[di++] = 0; // color map spec is five zeroes for no color map |
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451 | tga[di++] = 0; // color map spec is five zeroes for no color map |
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452 | tga[di++] = 0; // color map spec is five zeroes for no color map |
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453 | tga[di++] = 0; // color map spec is five zeroes for no color map |
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454 | tga[di++] = 0; // x origin = two bytes |
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455 | tga[di++] = 0; // x origin = two bytes |
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456 | tga[di++] = 0; // y origin = two bytes |
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457 | tga[di++] = 0; // y origin = two bytes |
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458 | tga[di++] = (byte)(Width & 0xFF); // width - low byte |
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459 | tga[di++] = (byte)(Width >> 8); // width - hi byte |
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460 | tga[di++] = (byte)(Height & 0xFF); // height - low byte |
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461 | tga[di++] = (byte)(Height >> 8); // height - hi byte |
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462 | tga[di++] = (byte)((Channels & ImageChannels.Alpha) == 0 ? 24 : 32); // 24/32 bits per pixel |
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463 | tga[di++] = (byte)((Channels & ImageChannels.Alpha) == 0 ? 32 : 40); // image descriptor byte |
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464 | |||
465 | int n = Width * Height; |
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466 | |||
467 | if ((Channels & ImageChannels.Alpha) != 0) |
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468 | { |
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469 | if ((Channels & ImageChannels.Color) != 0) |
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470 | { |
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471 | // RGBA |
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472 | for (int i = 0; i < n; i++) |
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473 | { |
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474 | tga[di++] = Blue[i]; |
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475 | tga[di++] = Green[i]; |
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476 | tga[di++] = Red[i]; |
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477 | tga[di++] = Alpha[i]; |
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478 | } |
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479 | } |
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480 | else |
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481 | { |
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482 | // Alpha only |
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483 | for (int i = 0; i < n; i++) |
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484 | { |
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485 | tga[di++] = Alpha[i]; |
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486 | tga[di++] = Alpha[i]; |
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487 | tga[di++] = Alpha[i]; |
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488 | tga[di++] = Byte.MaxValue; |
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489 | } |
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490 | } |
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491 | } |
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492 | else |
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493 | { |
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494 | // RGB |
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495 | for (int i = 0; i < n; i++) |
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496 | { |
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497 | tga[di++] = Blue[i]; |
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498 | tga[di++] = Green[i]; |
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499 | tga[di++] = Red[i]; |
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500 | } |
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501 | } |
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502 | |||
503 | return tga; |
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504 | } |
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505 | |||
506 | private static void FillArray(byte[] array, byte value) |
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507 | { |
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508 | if (array != null) |
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509 | { |
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510 | for (int i = 0; i < array.Length; i++) |
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511 | array[i] = value; |
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512 | } |
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513 | } |
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514 | |||
515 | public void Clear() |
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516 | { |
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517 | FillArray(Red, 0); |
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518 | FillArray(Green, 0); |
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519 | FillArray(Blue, 0); |
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520 | FillArray(Alpha, 0); |
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521 | FillArray(Bump, 0); |
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522 | } |
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523 | |||
524 | public ManagedImage Clone() |
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525 | { |
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526 | ManagedImage image = new ManagedImage(Width, Height, Channels); |
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527 | if (Red != null) image.Red = (byte[])Red.Clone(); |
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528 | if (Green != null) image.Green = (byte[])Green.Clone(); |
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529 | if (Blue != null) image.Blue = (byte[])Blue.Clone(); |
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530 | if (Alpha != null) image.Alpha = (byte[])Alpha.Clone(); |
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531 | if (Bump != null) image.Bump = (byte[])Bump.Clone(); |
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532 | return image; |
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533 | } |
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534 | } |
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535 | } |