| 1 | // Created on: 2013-06-25 |
| 2 | // Created by: Dmitry BOBYLEV |
| 3 | // Copyright (c) 2013-2014 OPEN CASCADE SAS |
| 4 | // |
| 5 | // This file is part of Open CASCADE Technology software library. |
| 6 | // |
| 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 |
| 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. |
| 12 | // |
| 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 14 | // commercial license or contractual agreement. |
| 15 | |
| 16 | #include <Graphic3d_MarkerImage.hxx> |
| 17 | |
| 18 | #include <Image_PixMap.hxx> |
| 19 | #include <Standard_Atomic.hxx> |
| 20 | #include <TColStd_HArray1OfByte.hxx> |
| 21 | |
| 22 | IMPLEMENT_STANDARD_RTTIEXT(Graphic3d_MarkerImage,Standard_Transient) |
| 23 | |
| 24 | namespace |
| 25 | { |
| 26 | static volatile Standard_Integer THE_MARKER_IMAGE_COUNTER = 0; |
| 27 | } |
| 28 | |
| 29 | |
| 30 | // ======================================================================= |
| 31 | // function : Graphic3d_MarkerImage |
| 32 | // purpose : |
| 33 | // ======================================================================= |
| 34 | Graphic3d_MarkerImage::Graphic3d_MarkerImage (const Handle(Image_PixMap)& theImage) |
| 35 | : myImage (theImage), |
| 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), |
| 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 | { |
| 93 | Standard_Real anAlphaValue; |
| 94 | Quantity_Color aColor = myImage->PixelColor (aColumn, aRow, anAlphaValue); |
| 95 | Standard_Boolean aBitOn = Standard_False; |
| 96 | |
| 97 | if (myImage->Format() == Image_Format_Alpha) |
| 98 | { |
| 99 | aBitOn = anAlphaValue > theAlphaValue; |
| 100 | } |
| 101 | else if (myImage->Format() == Image_Format_Gray) |
| 102 | { |
| 103 | aBitOn = aColor.Red() > theAlphaValue; |
| 104 | } |
| 105 | else |
| 106 | { |
| 107 | aBitOn = anAlphaValue > theAlphaValue; |
| 108 | } |
| 109 | |
| 110 | Standard_Integer anIndex = aNumOfBytesInRow * aRow + aColumn / 8; |
| 111 | aBitMap->SetValue (anIndex, (Standard_Byte)(aBitMap->Value (anIndex) + |
| 112 | (aBitOn ? (0x80 >> (aColumn % 8)) : 0))); |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | return aBitMap; |
| 117 | } |
| 118 | |
| 119 | // ======================================================================= |
| 120 | // function : GetImage |
| 121 | // purpose : |
| 122 | // ======================================================================= |
| 123 | const Handle(Image_PixMap)& Graphic3d_MarkerImage::GetImage() |
| 124 | { |
| 125 | if (!myImage.IsNull()) |
| 126 | { |
| 127 | return myImage; |
| 128 | } |
| 129 | |
| 130 | if (myBitMap.IsNull()) |
| 131 | { |
| 132 | return myImage; |
| 133 | } |
| 134 | |
| 135 | // Converting a byte array to bitmap image. Row and column offsets are used |
| 136 | // to store bitmap in a square image, so the image will not be stretched |
| 137 | // when rendering with point sprites. |
| 138 | const Standard_Integer aNumOfBytesInRow = myWidth / 8 + (myWidth % 8 ? 1 : 0); |
| 139 | const Standard_Integer aSize = Max (myWidth, myHeight); |
| 140 | const Standard_Integer aRowOffset = (aSize - myHeight) / 2 + myMargin; |
| 141 | const Standard_Integer aColumnOffset = (aSize - myWidth ) / 2 + myMargin; |
| 142 | const Standard_Integer aLowerIndex = myBitMap->Lower(); |
| 143 | |
| 144 | myImage = new Image_PixMap(); |
| 145 | myImage->InitZero (Image_Format_Alpha, aSize + myMargin * 2, aSize + myMargin * 2); |
| 146 | for (Standard_Integer aRowIter = 0; aRowIter < myHeight; aRowIter++) |
| 147 | { |
| 148 | Standard_Byte* anImageRow = myImage->ChangeRow (aRowIter + aRowOffset); |
| 149 | for (Standard_Integer aColumnIter = 0; aColumnIter < myWidth; aColumnIter++) |
| 150 | { |
| 151 | Standard_Boolean aBitOn = (myBitMap->Value (aLowerIndex + aNumOfBytesInRow * aRowIter + aColumnIter / 8) & (0x80 >> (aColumnIter % 8))) != 0; |
| 152 | anImageRow[aColumnIter + aColumnOffset] = aBitOn ? 255 : 0; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | return myImage; |
| 157 | } |
| 158 | |
| 159 | // ======================================================================= |
| 160 | // function : GetImageAlpha |
| 161 | // purpose : |
| 162 | // ======================================================================= |
| 163 | const Handle(Image_PixMap)& Graphic3d_MarkerImage::GetImageAlpha() |
| 164 | { |
| 165 | if (!myImageAlpha.IsNull()) |
| 166 | { |
| 167 | return myImageAlpha; |
| 168 | } |
| 169 | |
| 170 | if (!myImage.IsNull()) |
| 171 | { |
| 172 | if (myImage->Format() == Image_Format_Gray |
| 173 | || myImage->Format() == Image_Format_Alpha) |
| 174 | { |
| 175 | myImageAlpha = myImage; |
| 176 | } |
| 177 | else |
| 178 | { |
| 179 | myImageAlpha = new Image_PixMap(); |
| 180 | myImageAlpha->InitZero (Image_Format_Alpha, myImage->Width(), myImage->Height()); |
| 181 | myImageAlpha->SetTopDown (Standard_False); |
| 182 | Standard_Real anAlpha; |
| 183 | for (Standard_Size aRowIter = 0; aRowIter < myImage->Height(); aRowIter++) |
| 184 | { |
| 185 | Standard_Byte* anImageRow = myImageAlpha->ChangeRow (aRowIter); |
| 186 | for (Standard_Size aColumnIter = 0; aColumnIter < myImage->Width(); aColumnIter++) |
| 187 | { |
| 188 | myImage->PixelColor ((Standard_Integer)aColumnIter, (Standard_Integer)aRowIter, anAlpha); |
| 189 | anImageRow[aColumnIter] = Standard_Byte (255.0 * anAlpha); |
| 190 | } |
| 191 | } |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | return myImageAlpha; |
| 196 | } |
| 197 | |
| 198 | // ======================================================================= |
| 199 | // function : GetImageId |
| 200 | // purpose : |
| 201 | // ======================================================================= |
| 202 | const TCollection_AsciiString& Graphic3d_MarkerImage::GetImageId() const |
| 203 | { |
| 204 | return myImageId; |
| 205 | } |
| 206 | |
| 207 | // ======================================================================= |
| 208 | // function : GetImageAlphaId |
| 209 | // purpose : |
| 210 | // ======================================================================= |
| 211 | const TCollection_AsciiString& Graphic3d_MarkerImage::GetImageAlphaId() const |
| 212 | { |
| 213 | return myImageAlphaId; |
| 214 | } |
| 215 | |
| 216 | // ======================================================================= |
| 217 | // function : GetTextureSize |
| 218 | // purpose : |
| 219 | // ======================================================================= |
| 220 | void Graphic3d_MarkerImage::GetTextureSize (Standard_Integer& theWidth, |
| 221 | Standard_Integer& theHeight) const |
| 222 | { |
| 223 | theWidth = myWidth; |
| 224 | theHeight = myHeight; |
| 225 | } |