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1 | // Created on: 2013-06-25 |
2 | // Created by: Dmitry BOBYLEV |
3 | // Copyright (c) 2013 OPEN CASCADE SAS |
4 | // |
5 | // The content of this file is subject to the Open CASCADE Technology Public |
6 | // License Version 6.5 (the "License"). You may not use the content of this file |
7 | // except in compliance with the License. Please obtain a copy of the License |
8 | // at http://www.opencascade.org and read it completely before using this file. |
9 | // |
10 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its |
11 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. |
12 | // |
13 | // The Original Code and all software distributed under the License is |
14 | // distributed on an "AS IS" basis, without warranty of any kind, and the |
15 | // Initial Developer hereby disclaims all such warranties, including without |
16 | // limitation, any warranties of merchantability, fitness for a particular |
17 | // purpose or non-infringement. Please see the License for the specific terms |
18 | // and conditions governing the rights and limitations under the License. |
19 | |
20 | #include <Graphic3d_MarkerImage.hxx> |
21 | |
22 | #include <Image_PixMap.hxx> |
23 | #include <Standard_Atomic.hxx> |
24 | #include <TColStd_HArray1OfByte.hxx> |
25 | |
26 | namespace |
27 | { |
28 | static volatile Standard_Integer THE_MARKER_IMAGE_COUNTER = 0; |
29 | }; |
30 | |
31 | IMPLEMENT_STANDARD_HANDLE (Graphic3d_MarkerImage, Standard_Transient) |
32 | IMPLEMENT_STANDARD_RTTIEXT(Graphic3d_MarkerImage, Standard_Transient) |
33 | |
34 | // ======================================================================= |
35 | // function : Graphic3d_MarkerImage |
36 | // purpose : |
37 | // ======================================================================= |
38 | Graphic3d_MarkerImage::Graphic3d_MarkerImage (const Handle(Image_PixMap)& theImage) |
39 | : myBitMap (NULL), |
40 | myImage (theImage), |
41 | myImageAlpha (NULL), |
42 | myMargin (1), |
43 | myWidth ((Standard_Integer )theImage->Width()), |
44 | myHeight ((Standard_Integer )theImage->Height()) |
45 | { |
46 | myImageId = TCollection_AsciiString ("Graphic3d_MarkerImage_") |
47 | + TCollection_AsciiString (Standard_Atomic_Increment (&THE_MARKER_IMAGE_COUNTER)); |
48 | |
49 | myImageAlphaId = TCollection_AsciiString ("Graphic3d_MarkerImageAlpha_") |
50 | + TCollection_AsciiString (THE_MARKER_IMAGE_COUNTER); |
51 | } |
52 | |
53 | // ======================================================================= |
54 | // function : Graphic3d_MarkerImage |
55 | // purpose : |
56 | // ======================================================================= |
57 | Graphic3d_MarkerImage::Graphic3d_MarkerImage (const Handle(TColStd_HArray1OfByte)& theBitMap, |
58 | const Standard_Integer& theWidth, |
59 | const Standard_Integer& theHeight) |
60 | : myBitMap (theBitMap), |
61 | myImage (NULL), |
62 | myImageAlpha (NULL), |
63 | myMargin (1), |
64 | myWidth (theWidth), |
65 | myHeight (theHeight) |
66 | { |
67 | myImageId = TCollection_AsciiString ("Graphic3d_MarkerImage_") |
68 | + TCollection_AsciiString (Standard_Atomic_Increment (&THE_MARKER_IMAGE_COUNTER)); |
69 | |
70 | myImageAlphaId = TCollection_AsciiString ("Graphic3d_MarkerImageAlpha_") |
71 | + TCollection_AsciiString (THE_MARKER_IMAGE_COUNTER); |
72 | } |
73 | |
74 | // ======================================================================= |
75 | // function : GetBitMapArray |
76 | // purpose : |
77 | // ======================================================================= |
78 | Handle(TColStd_HArray1OfByte) Graphic3d_MarkerImage::GetBitMapArray (const Standard_Real& theAlphaValue) const |
79 | { |
80 | if (!myBitMap.IsNull()) |
81 | { |
82 | return myBitMap; |
83 | } |
84 | |
85 | Handle(TColStd_HArray1OfByte) aBitMap; |
86 | if (myImage.IsNull()) |
87 | { |
88 | return aBitMap; |
89 | } |
90 | |
91 | const Standard_Integer aNumOfBytesInRow = (Standard_Integer )(myImage->Width() / 8) + (myImage->Width() % 8 ? 1 : 0); |
92 | const Standard_Integer aNumOfBytes = (Standard_Integer )(aNumOfBytesInRow * myImage->Height()); |
93 | const Standard_Integer aHeight = (Standard_Integer )myImage->Height(); |
94 | const Standard_Integer aWidth = (Standard_Integer )myImage->Width(); |
95 | aBitMap = new TColStd_HArray1OfByte (0, aNumOfBytes - 1); |
96 | aBitMap->Init (0); |
97 | for (Standard_Integer aRow = 0; aRow < aHeight; aRow++) |
98 | { |
99 | for (Standard_Integer aColumn = 0; aColumn < aWidth; aColumn++) |
100 | { |
101 | Quantity_Parameter anAlphaValue; |
102 | Quantity_Color aColor = myImage->PixelColor (aColumn, aRow, anAlphaValue); |
103 | Standard_Boolean aBitOn = Standard_False; |
104 | |
105 | if (myImage->Format() == Image_PixMap::ImgGray) |
106 | { |
107 | aBitOn = aColor.Red() > theAlphaValue; |
108 | } |
109 | else |
110 | { |
111 | aBitOn = anAlphaValue > theAlphaValue; |
112 | } |
113 | |
114 | aBitMap->ChangeValue (aNumOfBytesInRow * aRow + aColumn / 8) += aBitOn ? (0x80 >> (aColumn % 8)) : 0; |
115 | } |
116 | } |
117 | |
118 | return aBitMap; |
119 | } |
120 | |
121 | // ======================================================================= |
122 | // function : GetImage |
123 | // purpose : |
124 | // ======================================================================= |
125 | const Handle(Image_PixMap)& Graphic3d_MarkerImage::GetImage() |
126 | { |
127 | if (!myImage.IsNull()) |
128 | { |
129 | return myImage; |
130 | } |
131 | |
132 | if (myBitMap.IsNull()) |
133 | { |
134 | return myImage; |
135 | } |
136 | |
137 | // Converting a byte array to bitmap image. Row and column offsets are used |
138 | // to store bitmap in a square image, so the image will not be stretched |
139 | // when rendering with point sprites. |
140 | const Standard_Integer aNumOfBytesInRow = myWidth / 8 + (myWidth % 8 ? 1 : 0); |
141 | const Standard_Integer aSize = Max (myWidth, myHeight); |
142 | const Standard_Integer aRowOffset = (aSize - myHeight) / 2 + myMargin; |
143 | const Standard_Integer aColumnOffset = (aSize - myWidth ) / 2 + myMargin; |
144 | const Standard_Integer aLowerIndex = myBitMap->Lower(); |
145 | |
146 | myImage = new Image_PixMap(); |
147 | myImage->InitZero (Image_PixMap::ImgGray, aSize + myMargin * 2, aSize + myMargin * 2); |
148 | for (Standard_Integer aRowIter = 0; aRowIter < myHeight; aRowIter++) |
149 | { |
150 | Standard_Byte* anImageRow = myImage->ChangeRow (aRowIter + aRowOffset); |
151 | for (Standard_Integer aColumnIter = 0; aColumnIter < myWidth; aColumnIter++) |
152 | { |
153 | Standard_Boolean aBitOn = myBitMap->Value (aLowerIndex + aNumOfBytesInRow * aRowIter + aColumnIter / 8) & (0x80 >> (aColumnIter % 8)); |
154 | anImageRow[aColumnIter + aColumnOffset] = aBitOn ? 255 : 0; |
155 | } |
156 | } |
157 | |
158 | return myImage; |
159 | } |
160 | |
161 | // ======================================================================= |
162 | // function : GetImageAlpha |
163 | // purpose : |
164 | // ======================================================================= |
165 | const Handle(Image_PixMap)& Graphic3d_MarkerImage::GetImageAlpha() |
166 | { |
167 | if (!myImageAlpha.IsNull()) |
168 | { |
169 | return myImageAlpha; |
170 | } |
171 | |
172 | if (!myImage.IsNull()) |
173 | { |
174 | if (myImage->Format() == Image_PixMap::ImgGray) |
175 | { |
176 | myImageAlpha = myImage; |
177 | } |
178 | else |
179 | { |
180 | myImageAlpha = new Image_PixMap(); |
181 | myImageAlpha->InitZero (Image_PixMap::ImgGray, myImage->Width(), myImage->Height()); |
182 | myImageAlpha->SetTopDown (Standard_False); |
183 | Quantity_Parameter anAlpha; |
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184 | for (Standard_Size aRowIter = 0; aRowIter < myImage->Height(); aRowIter++) |
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185 | { |
186 | Standard_Byte* anImageRow = myImageAlpha->ChangeRow (aRowIter); |
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187 | for (Standard_Size aColumnIter = 0; aColumnIter < myImage->Width(); aColumnIter++) |
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188 | { |
189 | myImage->PixelColor (aColumnIter, aRowIter, anAlpha); |
190 | anImageRow[aColumnIter] = Standard_Byte (255.0 * anAlpha); |
191 | } |
192 | } |
193 | } |
194 | } |
195 | |
196 | return myImageAlpha; |
197 | } |
198 | |
199 | // ======================================================================= |
200 | // function : GetImageId |
201 | // purpose : |
202 | // ======================================================================= |
203 | const TCollection_AsciiString& Graphic3d_MarkerImage::GetImageId() const |
204 | { |
205 | return myImageId; |
206 | } |
207 | |
208 | // ======================================================================= |
209 | // function : GetImageAlphaId |
210 | // purpose : |
211 | // ======================================================================= |
212 | const TCollection_AsciiString& Graphic3d_MarkerImage::GetImageAlphaId() const |
213 | { |
214 | return myImageAlphaId; |
215 | } |
216 | |
217 | // ======================================================================= |
218 | // function : GetTextureSize |
219 | // purpose : |
220 | // ======================================================================= |
221 | void Graphic3d_MarkerImage::GetTextureSize (Standard_Integer& theWidth, |
222 | Standard_Integer& theHeight) const |
223 | { |
224 | theWidth = myWidth; |
225 | theHeight = myHeight; |
226 | } |