qopenglpixeltransferoptions.cpp

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

2 ** -

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

5 ** -

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

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8 ** $QT_BEGIN_LICENSE:LGPL$ -

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17 ** GNU Lesser General Public License Usage -

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21 ** packaging of this file. Please review the following information to -

22 ** ensure the GNU Lesser General Public License version 3 requirements -

23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -

24 ** -

25 ** GNU General Public License Usage -

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

27 ** General Public License version 2.0 or (at your option) the GNU General -

28 ** Public license version 3 or any later version approved by the KDE Free -

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35 ** -

36 ** $QT_END_LICENSE$ -

37 ** -

38 ****************************************************************************/ -

39 -

40 #include "qopenglpixeltransferoptions.h" -

41 #include <QSharedData> -

42 -

43 QT_BEGIN_NAMESPACE -

44 -

45 /*! -

46 * \class QOpenGLPixelTransferOptions -

47 * -

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

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

50 */ -

51 -

52 /*! -

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

54 * \internal -

55 */ -

56 -

57 /*! -

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

59 * \internal -

60 */ -

61 -

62 class QOpenGLPixelTransferOptionsData : public QSharedData -

63 { -

64 public: -

65 QOpenGLPixelTransferOptionsData() -

66 : alignment(4) -

67 , skipImages(0) -

68 , skipRows(0) -

69 , skipPixels(0) -

70 , imageHeight(0) -

71 , rowLength(0) -

72 , lsbFirst(false) -

73 , swapBytes(false) -

{}

never executed: end of block

75 -

76 int alignment; -

77 int skipImages; -

78 int skipRows; -

79 int skipPixels; -

80 int imageHeight; -

81 int rowLength; -

82 bool lsbFirst; -

83 bool swapBytes; -

84 }; -

85 -

86 /*! -

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

88 */ -

89 QOpenGLPixelTransferOptions::QOpenGLPixelTransferOptions() -

90 : data(new QOpenGLPixelTransferOptionsData) -

91 { -

}

never executed: end of block

93 -

94 /*! -

95 * \internal -

96 */ -

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

98 : data(rhs.data) -

99 { -

100

}

never executed: end of block

101 -

102 /*! -

103 * \internal -

104 */ -

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

106 { -

107

if (this != &rhs)

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

108

data.operator=(rhs.data);

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

109

return *this;

never executed: return *this;

110 } -

111 -

112 /*! -

113 * Destructor. -

114 */ -

115 QOpenGLPixelTransferOptions::~QOpenGLPixelTransferOptions() -

116 { -

117 } -

118 -

119 /*! -

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

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

122 */ -

123 void QOpenGLPixelTransferOptions::setAlignment(int alignment) -

124 { -

125 data->alignment = alignment; -

126

}

never executed: end of block

127 -

128 /*! -

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

130 */ -

131 int QOpenGLPixelTransferOptions::alignment() const -

132 { -

133

return data->alignment;

never executed: return data->alignment;

134 } -

135 -

136 /*! -

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

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

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

140 */ -

141 void QOpenGLPixelTransferOptions::setSkipImages(int skipImages) -

142 { -

143 data->skipImages = skipImages; -

144

}

never executed: end of block

145 -

146 /*! -

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

148 */ -

149 int QOpenGLPixelTransferOptions::skipImages() const -

150 { -

151

return data->skipImages;

never executed: return data->skipImages;

152 } -

153 -

154 /*! -

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

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

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

158 */ -

159 void QOpenGLPixelTransferOptions::setSkipRows(int skipRows) -

160 { -

161 data->skipRows = skipRows; -

162

}

never executed: end of block

163 -

164 /*! -

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

166 */ -

167 int QOpenGLPixelTransferOptions::skipRows() const -

168 { -

169

return data->skipRows;

never executed: return data->skipRows;

170 } -

171 -

172 /*! -

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

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

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

176 */ -

177 void QOpenGLPixelTransferOptions::setSkipPixels(int skipPixels) -

178 { -

179 data->skipPixels = skipPixels; -

180

}

never executed: end of block

181 -

182 /*! -

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

184 */ -

185 int QOpenGLPixelTransferOptions::skipPixels() const -

186 { -

187

return data->skipPixels;

never executed: return data->skipPixels;

188 } -

189 -

190 /*! -

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

192 * Corresponds to \c GL_UNPACK_IMAGE_HEIGHT. -

193 * The default value is 0. -

194 */ -

195 void QOpenGLPixelTransferOptions::setImageHeight(int imageHeight) -

196 { -

197 data->imageHeight = imageHeight; -

198

}

never executed: end of block

199 -

200 /*! -

201 * \return the currently set image height. -

202 */ -

203 int QOpenGLPixelTransferOptions::imageHeight() const -

204 { -

205

return data->imageHeight;

never executed: return data->imageHeight;

206 } -

207 -

208 /*! -

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

210 * Corresponds to \c GL_UNPACK_ROW_LENGTH. -

211 * The default value is 0. -

212 */ -

213 void QOpenGLPixelTransferOptions::setRowLength(int rowLength) -

214 { -

215 data->rowLength = rowLength; -

216

}

never executed: end of block

217 -

218 /*! -

219 * \return the currently set row length. -

220 */ -

221 int QOpenGLPixelTransferOptions::rowLength() const -

222 { -

223

return data->rowLength;

never executed: return data->rowLength;

224 } -

225 -

226 /*! -

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

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

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

230 * Corresponds to \c GL_UNPACK_LSB_FIRST. -

231 */ -

232 void QOpenGLPixelTransferOptions::setLeastSignificantByteFirst(bool lsbFirst) -

233 { -

234 data->lsbFirst = lsbFirst; -

235

}

never executed: end of block

236 -

237 /*! -

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

239 */ -

240 bool QOpenGLPixelTransferOptions::isLeastSignificantBitFirst() const -

241 { -

242

return data->lsbFirst;

never executed: return data->lsbFirst;

243 } -

244 -

245 /*! -

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

247 * The default value is \c false. -

248 * Corresponds to \c GL_UNPACK_SWAP_BYTES. -

249 */ -

250 void QOpenGLPixelTransferOptions::setSwapBytesEnabled(bool swapBytes) -

251 { -

252 data->swapBytes = swapBytes; -

253

}

never executed: end of block

254 -

255 /*! -

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

257 */ -

258 bool QOpenGLPixelTransferOptions::isSwapBytesEnabled() const -

259 { -

260

return data->swapBytes;

never executed: return data->swapBytes;

261 } -

262 -

263 QT_END_NAMESPACE -

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