Mercurial > fife-parpg
annotate engine/core/video/sdl/sdlblendingfunctions.cpp @ 518:e4cd18a179af
Added the PlayerActionListener.
Added the ability to load NPCs from the settings file (this may be temporary). The idea of putting the NPCs in the settings file is to allow for custom attributes to be added without modification to the editor.
author | prock@33b003aa-7bff-0310-803a-e67f0ece8222 |
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date | Wed, 26 May 2010 21:29:46 +0000 |
parents | 90005975cdbb |
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rev | line source |
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1 /*************************************************************************** |
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2 * Copyright (C) 2005-2008 by the FIFE team * |
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3 * http://www.fifengine.de * |
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4 * This file is part of FIFE. * |
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5 * * |
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6 * FIFE is free software; you can redistribute it and/or * |
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7 * modify it under the terms of the GNU Lesser General Public * |
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8 * License as published by the Free Software Foundation; either * |
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9 * version 2.1 of the License, or (at your option) any later version. * |
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10 * * |
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11 * This library is distributed in the hope that it will be useful, * |
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * |
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14 * Lesser General Public License for more details. * |
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15 * * |
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16 * You should have received a copy of the GNU Lesser General Public * |
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17 * License along with this library; if not, write to the * |
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18 * Free Software Foundation, Inc., * |
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * |
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20 ***************************************************************************/ |
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21 |
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22 // Standard C++ library includes |
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23 |
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24 // 3rd party library includes |
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25 |
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26 // FIFE includes |
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27 // These includes are split up in two parts, separated by one empty line |
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28 // First block: files included from the FIFE root src directory |
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29 // Second block: files included from the same folder |
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30 #include "sdlblendingfunctions.h" |
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31 |
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32 namespace FIFE { |
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33 |
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34 struct ColorRGB8 { |
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35 unsigned char r, g, b; |
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36 }; |
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37 |
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38 struct ColorRGBA8 { |
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39 unsigned char r, g, b, a; |
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40 }; |
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41 |
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42 void SDL_BlendRow_RGBA8_to_RGBA8( const unsigned char* src, unsigned char* dst, unsigned int alpha, int n ) { |
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43 const ColorRGBA8* srcColor = reinterpret_cast< const ColorRGBA8* >( src ); |
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44 ColorRGBA8* dstColor = reinterpret_cast< ColorRGBA8* >( dst ); |
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45 |
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46 for( int i = n; 0 < i; --i ) { |
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47 register unsigned int aMulA = alpha * srcColor->a; |
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48 |
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49 if( aMulA ) { |
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50 register unsigned int OneMin_aMulA = 65535 - aMulA; |
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51 dstColor->r = ( aMulA * srcColor->r + OneMin_aMulA * dstColor->r ) >> 16; |
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52 dstColor->g = ( aMulA * srcColor->g + OneMin_aMulA * dstColor->g ) >> 16; |
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53 dstColor->b = ( aMulA * srcColor->b + OneMin_aMulA * dstColor->b ) >> 16; |
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54 dstColor->a = 255; |
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55 } |
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56 ++dstColor; |
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57 ++srcColor; |
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58 } |
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59 } |
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60 |
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61 void SDL_BlendRow_RGBA8_to_RGB8( const unsigned char* src, unsigned char* dst, unsigned int alpha, int n ) { |
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62 const ColorRGBA8* srcColor = reinterpret_cast< const ColorRGBA8* >( src ); |
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63 ColorRGB8* dstColor = reinterpret_cast< ColorRGB8* >( dst ); |
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64 |
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65 for( int i = n; 0 < i; --i ) { |
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66 register unsigned int aMulA = alpha * srcColor->a; |
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67 if( aMulA ) { |
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68 register unsigned int OneMin_aMulA = 65535 - aMulA; |
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69 dstColor->r = ( aMulA * srcColor->r + OneMin_aMulA * dstColor->r ) >> 16; |
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70 dstColor->g = ( aMulA * srcColor->g + OneMin_aMulA * dstColor->g ) >> 16; |
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71 dstColor->b = ( aMulA * srcColor->b + OneMin_aMulA * dstColor->b ) >> 16; |
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72 } |
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73 |
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74 ++dstColor; |
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75 ++srcColor; |
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76 } |
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77 } |
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78 |
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79 void SDL_BlendRow_RGBA8_to_RGB565( const unsigned char* src, unsigned char* dst, unsigned int alpha, int n ) { |
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80 const ColorRGBA8* srcColor = reinterpret_cast< const ColorRGBA8* >( src ); |
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81 unsigned short* dstColor = reinterpret_cast< unsigned short* >( dst ); |
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82 |
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83 for( int i = n; 0 < i; --i ) { |
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84 register unsigned int aMulA = ( alpha * srcColor->a ) >> 8; |
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85 if( aMulA ) { |
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86 register unsigned int OneMin_aMulA = 255 - aMulA; |
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87 register unsigned int c = *dstColor; |
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88 *dstColor = ( ( ( srcColor->b * aMulA ) + |
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89 ( ( ( c & 0xF800 ) >> 8 ) * OneMin_aMulA ) ) & 0xF800 ) | |
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90 ( ( ( ( srcColor->g * aMulA ) + |
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91 ( ( ( c & 0x07E0 ) >> 3 ) * OneMin_aMulA ) ) >> 5 ) & 0x07E0 ) | |
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92 ( ( ( ( srcColor->r * aMulA ) + |
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93 ( ( ( c & 0x001F ) << 3 ) * OneMin_aMulA ) ) >> 11 ) & 0x001F ); |
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* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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94 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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95 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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96 ++dstColor; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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97 ++srcColor; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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98 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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99 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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100 |
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* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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101 |
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* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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102 void SDL_BlendRow_RGBA4_to_RGB565( const unsigned char* src, unsigned char* dst, unsigned int alpha, int n ) { |
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* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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103 const unsigned short* srcColor = reinterpret_cast< const unsigned short* >( src ); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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104 unsigned short* dstColor = reinterpret_cast< unsigned short* >( dst ); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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105 |
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* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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106 for( int i = n; 0 < i; --i ) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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107 register unsigned int c1 = *dstColor; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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108 register unsigned int c2 = *srcColor; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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109 |
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* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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110 unsigned int aMulA = c2 & 0xF; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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111 aMulA = ( alpha * aMulA ) / 15; ///< upgrade to range 0-255 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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112 if( aMulA ) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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113 register unsigned int OneMin_aMulA = 255 - aMulA; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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114 register unsigned int result; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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115 result = ( ( ( ( c2 & 0xF000 ) | 0x0800 ) * aMulA ) + ( ( c1 & 0xF800 ) * OneMin_aMulA ) ) & 0xF80000; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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116 result |= ( ( ( ( ( c2 & 0x0F00 ) >> 1 ) | 0x0040 ) * aMulA ) + ( ( c1 & 0x07E0 ) * OneMin_aMulA ) ) & 0x07E000; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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117 result |= ( ( ( ( ( c2 & 0x00F0 ) >> 3 ) | 0x0001 ) * aMulA ) + ( ( c1 & 0x001F ) * OneMin_aMulA ) ) & 0x001F00; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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118 /// multiplying by alpha resulted in shift. |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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119 *dstColor = static_cast< unsigned short int >( result >> 8 ); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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120 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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121 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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122 ++dstColor; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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123 ++srcColor; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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124 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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125 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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|
126 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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|
127 } |