qopenglpixeltransferoptions.cpp

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1 /**************************************************************************** -

2 ** -

4 ** Contact: http://www.qt.io/licensing/ -

5 ** -

6 ** This file is part of the QtGui module of the Qt Toolkit. -

7 ** -

8 ** $QT_BEGIN_LICENSE:LGPL21$ -

9 ** Commercial License Usage -

10 ** Licensees holding valid commercial Qt licenses may use this file in -

11 ** accordance with the commercial license agreement provided with the -

12 ** Software or, alternatively, in accordance with the terms contained in -

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15 ** information use the contact form at http://www.qt.io/contact-us. -

16 ** -

17 ** GNU Lesser General Public License Usage -

18 ** Alternatively, this file may be used under the terms of the GNU Lesser -

19 ** General Public License version 2.1 or version 3 as published by the Free -

20 ** Software Foundation and appearing in the file LICENSE.LGPLv21 and -

21 ** LICENSE.LGPLv3 included in the packaging of this file. Please review the -

22 ** following information to ensure the GNU Lesser General Public License -

23 ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and -

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25 ** -

26 ** As a special exception, The Qt Company gives you certain additional -

27 ** rights. These rights are described in The Qt Company LGPL Exception -

28 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -

29 ** -

30 ** $QT_END_LICENSE$ -

31 ** -

32 ****************************************************************************/ -

33 -

34 #include "qopenglpixeltransferoptions.h" -

35 #include <QSharedData> -

36 -

37 QT_BEGIN_NAMESPACE -

38 -

39 /*! -

40 * \class QOpenGLPixelTransferOptions -

41 * -

42 * \brief The QOpenGLPixelTransferOptions class describes the pixel storage -

43 * modes that affect the unpacking of pixels during texture upload. -

44 */ -

45 -

46 /*! -

47 * \fn QOpenGLPixelTransferOptions & QOpenGLPixelTransferOptions::operator=(QOpenGLPixelTransferOptions &&other) -

48 * \internal -

49 */ -

50 -

51 /*! -

52 * \fn void QOpenGLPixelTransferOptions::swap(QOpenGLPixelTransferOptions &other) -

53 * \internal -

54 */ -

55 -

56 class QOpenGLPixelTransferOptionsData : public QSharedData -

57 { -

58 public: -

59 QOpenGLPixelTransferOptionsData() -

60 : alignment(4) -

61 , skipImages(0) -

62 , skipRows(0) -

63 , skipPixels(0) -

64 , imageHeight(0) -

65 , rowLength(0) -

66 , lsbFirst(false) -

67 , swapBytes(false) -

{}

never executed: end of block

69 -

70 int alignment; -

71 int skipImages; -

72 int skipRows; -

73 int skipPixels; -

74 int imageHeight; -

75 int rowLength; -

76 bool lsbFirst; -

77 bool swapBytes; -

78 }; -

79 -

80 /*! -

81 * Constructs a new QOpenGLPixelTransferOptions instance with the default settings. -

82 */ -

83 QOpenGLPixelTransferOptions::QOpenGLPixelTransferOptions() -

84 : data(new QOpenGLPixelTransferOptionsData) -

85 { -

}

never executed: end of block

87 -

88 /*! -

89 * \internal -

90 */ -

91 QOpenGLPixelTransferOptions::QOpenGLPixelTransferOptions(const QOpenGLPixelTransferOptions &rhs) -

92 : data(rhs.data) -

93 { -

}

never executed: end of block

95 -

96 /*! -

97 * \internal -

98 */ -

99 QOpenGLPixelTransferOptions &QOpenGLPixelTransferOptions::operator=(const QOpenGLPixelTransferOptions &rhs) -

100 { -

101

if (this != &rhs)

this != &rhs	Description
TRUE	never evaluated
FALSE	never evaluated

102

data.operator=(rhs.data);

never executed: data.operator=(rhs.data);

103

return *this;

never executed: return *this;

104 } -

105 -

106 /*! -

107 * Destructor. -

108 */ -

109 QOpenGLPixelTransferOptions::~QOpenGLPixelTransferOptions() -

110 { -

111 } -

112 -

113 /*! -

114 * Sets the \a alignment requirements for each pixel row. Corresponds to \c GL_UNPACK_ALIGNMENT. -

115 * The default value is 4, as specified by OpenGL. -

116 */ -

117 void QOpenGLPixelTransferOptions::setAlignment(int alignment) -

118 { -

119 data->alignment = alignment; -

120

}

never executed: end of block

121 -

122 /*! -

123 * \return the current alignment requirement for each pixel row. -

124 */ -

125 int QOpenGLPixelTransferOptions::alignment() const -

126 { -

127

return data->alignment;

never executed: return data->alignment;

128 } -

129 -

130 /*! -

131 * Sets the number of images that are skipped to \a skipImages. -

132 * Corresponds to \c GL_UNPACK_SKIP_IMAGES. Equivalent to incrementing the pointer -

133 * passed to QOpenGLTexture::setData(). The default value is 0. -

134 */ -

135 void QOpenGLPixelTransferOptions::setSkipImages(int skipImages) -

136 { -

137 data->skipImages = skipImages; -

138

}

never executed: end of block

139 -

140 /*! -

141 * \return the number of images that are skipped. -

142 */ -

143 int QOpenGLPixelTransferOptions::skipImages() const -

144 { -

145

return data->skipImages;

never executed: return data->skipImages;

146 } -

147 -

148 /*! -

149 * Sets the number of rows that are skipped to \a skipRows. -

150 * Corresponds to \c GL_UNPACK_SKIP_ROWS. Equivalent to incrementing the pointer -

151 * passed to QOpenGLTexture::setData(). The default value is 0. -

152 */ -

153 void QOpenGLPixelTransferOptions::setSkipRows(int skipRows) -

154 { -

155 data->skipRows = skipRows; -

156

}

never executed: end of block

157 -

158 /*! -

159 * \return the number of rows that are skipped. -

160 */ -

161 int QOpenGLPixelTransferOptions::skipRows() const -

162 { -

163

return data->skipRows;

never executed: return data->skipRows;

164 } -

165 -

166 /*! -

167 * Sets the number of pixels that are skipped to \a skipPixels. -

168 * Corresponds to \c GL_UNPACK_SKIP_PIXELS. Equivalent to incrementing the pointer -

169 * passed to QOpenGLTexture::setData(). The default value is 0. -

170 */ -

171 void QOpenGLPixelTransferOptions::setSkipPixels(int skipPixels) -

172 { -

173 data->skipPixels = skipPixels; -

174

}

never executed: end of block

175 -

176 /*! -

177 * \return the number of pixels that are skipped. -

178 */ -

179 int QOpenGLPixelTransferOptions::skipPixels() const -

180 { -

181

return data->skipPixels;

never executed: return data->skipPixels;

182 } -

183 -

184 /*! -

185 * Sets the image height for 3D textures to \a imageHeight. -

186 * Corresponds to \c GL_UNPACK_IMAGE_HEIGHT. -

187 * The default value is 0. -

188 */ -

189 void QOpenGLPixelTransferOptions::setImageHeight(int imageHeight) -

190 { -

191 data->imageHeight = imageHeight; -

192

}

never executed: end of block

193 -

194 /*! -

195 * \return the currently set image height. -

196 */ -

197 int QOpenGLPixelTransferOptions::imageHeight() const -

198 { -

199

return data->imageHeight;

never executed: return data->imageHeight;

200 } -

201 -

202 /*! -

203 * Sets the number of pixels in a row to \a rowLength. -

204 * Corresponds to \c GL_UNPACK_ROW_LENGTH. -

205 * The default value is 0. -

206 */ -

207 void QOpenGLPixelTransferOptions::setRowLength(int rowLength) -

208 { -

209 data->rowLength = rowLength; -

210

}

never executed: end of block

211 -

212 /*! -

213 * \return the currently set row length. -

214 */ -

215 int QOpenGLPixelTransferOptions::rowLength() const -

216 { -

217

return data->rowLength;

never executed: return data->rowLength;

218 } -

219 -

220 /*! -

221 * \a lsbFirst specifies if bits within a byte are ordered from least to most significat. -

222 * The default value is \c false, meaning that the first bit in each byte is the -

223 * most significant one. This is significant for bitmap data only. -

224 * Corresponds to \c GL_UNPACK_LSB_FIRST. -

225 */ -

226 void QOpenGLPixelTransferOptions::setLeastSignificantByteFirst(bool lsbFirst) -

227 { -

228 data->lsbFirst = lsbFirst; -

229

}

never executed: end of block

230 -

231 /*! -

232 * \return \c true if bits within a byte are ordered from least to most significant. -

233 */ -

234 bool QOpenGLPixelTransferOptions::isLeastSignificantBitFirst() const -

235 { -

236

return data->lsbFirst;

never executed: return data->lsbFirst;

237 } -

238 -

239 /*! -

240 * \a swapBytes specifies if the byte ordering for multibyte components is reversed. -

241 * The default value is \c false. -

242 * Corresponds to \c GL_UNPACK_SWAP_BYTES. -

243 */ -

244 void QOpenGLPixelTransferOptions::setSwapBytesEnabled(bool swapBytes) -

245 { -

246 data->swapBytes = swapBytes; -

247

}

never executed: end of block

248 -

249 /*! -

250 * \return \c true if the byte ordering for multibyte components is reversed. -

251 */ -

252 bool QOpenGLPixelTransferOptions::isSwapBytesEnabled() const -

253 { -

254

return data->swapBytes;

never executed: return data->swapBytes;

255 } -

256 -

257 QT_END_NAMESPACE -

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