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1 | // Created on: 2013-06-25 |
2 | // Created by: Dmitry BOBYLEV |
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3 | // Copyright (c) 2013-2014 OPEN CASCADE SAS |
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4 | // |
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5 | // This file is part of Open CASCADE Technology software library. |
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6 | // |
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7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
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12 | // |
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13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
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15 | |
16 | #include <Graphic3d_MarkerImage.hxx> |
17 | |
18 | #include <Image_PixMap.hxx> |
19 | #include <Standard_Atomic.hxx> |
20 | #include <TColStd_HArray1OfByte.hxx> |
21 | |
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22 | IMPLEMENT_STANDARD_RTTIEXT(Graphic3d_MarkerImage,Standard_Transient) |
23 | |
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24 | namespace |
25 | { |
26 | static volatile Standard_Integer THE_MARKER_IMAGE_COUNTER = 0; |
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27 | } |
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28 | |
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29 | |
30 | // ======================================================================= |
31 | // function : Graphic3d_MarkerImage |
32 | // purpose : |
33 | // ======================================================================= |
34 | Graphic3d_MarkerImage::Graphic3d_MarkerImage (const Handle(Image_PixMap)& theImage) |
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35 | : myImage (theImage), |
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36 | myMargin (1), |
37 | myWidth ((Standard_Integer )theImage->Width()), |
38 | myHeight ((Standard_Integer )theImage->Height()) |
39 | { |
40 | myImageId = TCollection_AsciiString ("Graphic3d_MarkerImage_") |
41 | + TCollection_AsciiString (Standard_Atomic_Increment (&THE_MARKER_IMAGE_COUNTER)); |
42 | |
43 | myImageAlphaId = TCollection_AsciiString ("Graphic3d_MarkerImageAlpha_") |
44 | + TCollection_AsciiString (THE_MARKER_IMAGE_COUNTER); |
45 | } |
46 | |
47 | // ======================================================================= |
48 | // function : Graphic3d_MarkerImage |
49 | // purpose : |
50 | // ======================================================================= |
51 | Graphic3d_MarkerImage::Graphic3d_MarkerImage (const Handle(TColStd_HArray1OfByte)& theBitMap, |
52 | const Standard_Integer& theWidth, |
53 | const Standard_Integer& theHeight) |
54 | : myBitMap (theBitMap), |
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55 | myMargin (1), |
56 | myWidth (theWidth), |
57 | myHeight (theHeight) |
58 | { |
59 | myImageId = TCollection_AsciiString ("Graphic3d_MarkerImage_") |
60 | + TCollection_AsciiString (Standard_Atomic_Increment (&THE_MARKER_IMAGE_COUNTER)); |
61 | |
62 | myImageAlphaId = TCollection_AsciiString ("Graphic3d_MarkerImageAlpha_") |
63 | + TCollection_AsciiString (THE_MARKER_IMAGE_COUNTER); |
64 | } |
65 | |
66 | // ======================================================================= |
67 | // function : GetBitMapArray |
68 | // purpose : |
69 | // ======================================================================= |
70 | Handle(TColStd_HArray1OfByte) Graphic3d_MarkerImage::GetBitMapArray (const Standard_Real& theAlphaValue) const |
71 | { |
72 | if (!myBitMap.IsNull()) |
73 | { |
74 | return myBitMap; |
75 | } |
76 | |
77 | Handle(TColStd_HArray1OfByte) aBitMap; |
78 | if (myImage.IsNull()) |
79 | { |
80 | return aBitMap; |
81 | } |
82 | |
83 | const Standard_Integer aNumOfBytesInRow = (Standard_Integer )(myImage->Width() / 8) + (myImage->Width() % 8 ? 1 : 0); |
84 | const Standard_Integer aNumOfBytes = (Standard_Integer )(aNumOfBytesInRow * myImage->Height()); |
85 | const Standard_Integer aHeight = (Standard_Integer )myImage->Height(); |
86 | const Standard_Integer aWidth = (Standard_Integer )myImage->Width(); |
87 | aBitMap = new TColStd_HArray1OfByte (0, aNumOfBytes - 1); |
88 | aBitMap->Init (0); |
89 | for (Standard_Integer aRow = 0; aRow < aHeight; aRow++) |
90 | { |
91 | for (Standard_Integer aColumn = 0; aColumn < aWidth; aColumn++) |
92 | { |
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93 | const Quantity_ColorRGBA aColor = myImage->PixelColor (aColumn, aRow); |
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94 | Standard_Boolean aBitOn = Standard_False; |
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95 | if (myImage->Format() == Image_Format_Gray) |
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96 | { |
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97 | aBitOn = aColor.GetRGB().Red() > theAlphaValue; |
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98 | } |
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99 | else //if (myImage->Format() == Image_Format_Alpha) |
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100 | { |
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101 | aBitOn = aColor.Alpha() > theAlphaValue; |
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102 | } |
103 | |
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104 | Standard_Integer anIndex = aNumOfBytesInRow * aRow + aColumn / 8; |
105 | aBitMap->SetValue (anIndex, (Standard_Byte)(aBitMap->Value (anIndex) + |
106 | (aBitOn ? (0x80 >> (aColumn % 8)) : 0))); |
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107 | } |
108 | } |
109 | |
110 | return aBitMap; |
111 | } |
112 | |
113 | // ======================================================================= |
114 | // function : GetImage |
115 | // purpose : |
116 | // ======================================================================= |
117 | const Handle(Image_PixMap)& Graphic3d_MarkerImage::GetImage() |
118 | { |
119 | if (!myImage.IsNull()) |
120 | { |
121 | return myImage; |
122 | } |
123 | |
124 | if (myBitMap.IsNull()) |
125 | { |
126 | return myImage; |
127 | } |
128 | |
129 | // Converting a byte array to bitmap image. Row and column offsets are used |
130 | // to store bitmap in a square image, so the image will not be stretched |
131 | // when rendering with point sprites. |
132 | const Standard_Integer aNumOfBytesInRow = myWidth / 8 + (myWidth % 8 ? 1 : 0); |
133 | const Standard_Integer aSize = Max (myWidth, myHeight); |
134 | const Standard_Integer aRowOffset = (aSize - myHeight) / 2 + myMargin; |
135 | const Standard_Integer aColumnOffset = (aSize - myWidth ) / 2 + myMargin; |
136 | const Standard_Integer aLowerIndex = myBitMap->Lower(); |
137 | |
138 | myImage = new Image_PixMap(); |
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139 | myImage->InitZero (Image_Format_Alpha, aSize + myMargin * 2, aSize + myMargin * 2); |
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140 | for (Standard_Integer aRowIter = 0; aRowIter < myHeight; aRowIter++) |
141 | { |
142 | Standard_Byte* anImageRow = myImage->ChangeRow (aRowIter + aRowOffset); |
143 | for (Standard_Integer aColumnIter = 0; aColumnIter < myWidth; aColumnIter++) |
144 | { |
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145 | Standard_Boolean aBitOn = (myBitMap->Value (aLowerIndex + aNumOfBytesInRow * aRowIter + aColumnIter / 8) & (0x80 >> (aColumnIter % 8))) != 0; |
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146 | anImageRow[aColumnIter + aColumnOffset] = aBitOn ? 255 : 0; |
147 | } |
148 | } |
149 | |
150 | return myImage; |
151 | } |
152 | |
153 | // ======================================================================= |
154 | // function : GetImageAlpha |
155 | // purpose : |
156 | // ======================================================================= |
157 | const Handle(Image_PixMap)& Graphic3d_MarkerImage::GetImageAlpha() |
158 | { |
159 | if (!myImageAlpha.IsNull()) |
160 | { |
161 | return myImageAlpha; |
162 | } |
163 | |
164 | if (!myImage.IsNull()) |
165 | { |
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166 | if (myImage->Format() == Image_Format_Gray |
167 | || myImage->Format() == Image_Format_Alpha) |
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168 | { |
169 | myImageAlpha = myImage; |
170 | } |
171 | else |
172 | { |
173 | myImageAlpha = new Image_PixMap(); |
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174 | myImageAlpha->InitZero (Image_Format_Alpha, myImage->Width(), myImage->Height()); |
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175 | myImageAlpha->SetTopDown (Standard_False); |
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176 | for (Standard_Size aRowIter = 0; aRowIter < myImage->Height(); aRowIter++) |
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177 | { |
178 | Standard_Byte* anImageRow = myImageAlpha->ChangeRow (aRowIter); |
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179 | for (Standard_Size aColumnIter = 0; aColumnIter < myImage->Width(); aColumnIter++) |
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180 | { |
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181 | const Quantity_ColorRGBA aColor = myImage->PixelColor ((Standard_Integer)aColumnIter, (Standard_Integer)aRowIter); |
182 | anImageRow[aColumnIter] = Standard_Byte (255.0 * aColor.Alpha()); |
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183 | } |
184 | } |
185 | } |
186 | } |
187 | |
188 | return myImageAlpha; |
189 | } |
190 | |
191 | // ======================================================================= |
192 | // function : GetImageId |
193 | // purpose : |
194 | // ======================================================================= |
195 | const TCollection_AsciiString& Graphic3d_MarkerImage::GetImageId() const |
196 | { |
197 | return myImageId; |
198 | } |
199 | |
200 | // ======================================================================= |
201 | // function : GetImageAlphaId |
202 | // purpose : |
203 | // ======================================================================= |
204 | const TCollection_AsciiString& Graphic3d_MarkerImage::GetImageAlphaId() const |
205 | { |
206 | return myImageAlphaId; |
207 | } |
208 | |
209 | // ======================================================================= |
210 | // function : GetTextureSize |
211 | // purpose : |
212 | // ======================================================================= |
213 | void Graphic3d_MarkerImage::GetTextureSize (Standard_Integer& theWidth, |
214 | Standard_Integer& theHeight) const |
215 | { |
216 | theWidth = myWidth; |
217 | theHeight = myHeight; |
218 | } |