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1 /* |
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2 * Copyright (c) 2009 Sony Ericsson Mobile Communications AB |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Sony Ericsson Mobile Communications AB - initial contribution. |
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11 * Nokia Corporation - additional changes. |
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12 * |
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13 * Contributors: |
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14 * |
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15 * Description: |
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16 * Implements the Enhanced SMS Picture (Small/Large/Variable) Information Element. |
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17 * |
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18 */ |
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19 |
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20 |
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21 /** |
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22 * @file |
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23 * |
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24 * Implements CEMSPictureIE class |
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25 */ |
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26 |
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27 |
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28 #include <emspictureie.h> |
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29 |
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30 #include <fbs.h> |
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31 |
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32 CEmsPictureIE* CEmsPictureIE::NewL() |
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33 { |
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34 CEmsPictureIE* self = new (ELeave) CEmsPictureIE(); |
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35 return self; |
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36 } |
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37 |
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38 EXPORT_C CEmsPictureIE* CEmsPictureIE::NewL(const CFbsBitmap& aBitmap) |
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39 /** |
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40 * @capability None |
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41 */ |
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42 { |
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43 CEmsPictureIE* self = new (ELeave) CEmsPictureIE(); |
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44 CleanupStack::PushL(self); |
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45 self->ConstructL(aBitmap); |
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46 CleanupStack::Pop(self); |
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47 return self; |
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48 } |
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49 |
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50 EXPORT_C CEmsInformationElement* CEmsPictureIE::DuplicateL() const |
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51 /** |
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52 * @capability None |
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53 */ |
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54 { |
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55 CEmsPictureIE* copy = new (ELeave) CEmsPictureIE(); |
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56 CleanupStack::PushL(copy); |
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57 copy->CopyL(*this); |
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58 CleanupStack::Pop(copy); |
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59 return copy; |
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60 } |
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61 |
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62 EXPORT_C TSize CEmsPictureIE::SizeInPixels() const |
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63 /** |
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64 * @capability None |
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65 */ |
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66 { |
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67 return iSize; |
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68 } |
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69 |
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70 void CEmsPictureIE::ConstructL(const CFbsBitmap& aBitmap) |
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71 { |
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72 __ASSERT_ALWAYS(!iPictureBuf, User::Leave(KErrCorrupt)); |
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73 |
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74 iSize = aBitmap.SizeInPixels(); |
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75 if ((iSize == KSmallPicSize) || (iSize == KLargePicSize)) |
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76 { |
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77 iIdentifier = (iSize == KSmallPicSize) ? CSmsInformationElement::ESmsEnhancedSmallPicture : CSmsInformationElement::ESmsEnhancedLargePicture; |
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78 iPictureBuf = CreatePictureBufferL(aBitmap); |
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79 iEncodedBodyLength=iSize.iHeight*iSize.iWidth/8; |
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80 } |
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81 else |
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82 { |
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83 // Make sure bitmap is a x of 8 bits wide |
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84 iIdentifier = CSmsInformationElement::ESmsEnhancedVariablePicture; |
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85 |
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86 TSize size = aBitmap.SizeInPixels(); |
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87 iSize.iHeight = size.iHeight; |
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88 if (size.iWidth%8 != 0) |
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89 User::Leave(KErrCorrupt); |
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90 iPictureBuf = CreatePictureBufferL(aBitmap); |
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91 |
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92 // The length is the picture size plus two bytes to specify |
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93 // the width and height |
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94 iEncodedBodyLength=iSize.iHeight*iSize.iWidth/8+2; |
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95 } |
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96 __ASSERT_ALWAYS(iPictureBuf->Length() <= EEnhancedMaxSize, User::Leave(KErrTooBig)); |
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97 } |
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98 |
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99 HBufC8* CEmsPictureIE::CreatePictureBufferL(const CFbsBitmap& aBitmap) |
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100 { |
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101 __ASSERT_ALWAYS(aBitmap.SizeInPixels().iWidth%8==0, User::Leave(KErrCorrupt)); |
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102 |
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103 const TSize size = aBitmap.SizeInPixels(); |
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104 const TInt numLineBytes = size.iWidth/8; |
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105 HBufC8* pictureBuf = HBufC8::NewLC(numLineBytes * size.iHeight); |
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106 |
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107 HBufC8* scanLine = HBufC8::NewLC(numLineBytes); |
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108 TPtr8 line(scanLine->Des()); |
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109 |
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110 HBufC8* working = HBufC8::NewLC(numLineBytes); |
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111 TPtr8 convertedScanLine(working->Des()); |
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112 convertedScanLine.SetLength(numLineBytes); |
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113 |
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114 TUint8 byte; |
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115 |
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116 for (TInt a=0; a<size.iHeight; a++) |
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117 { |
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118 aBitmap.GetScanLine(line, TPoint(0,a), size.iWidth, EGray2); |
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119 |
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120 for (TInt word=0; word<numLineBytes; word++) |
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121 { |
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122 // Convert EMS Black=1 to Epoc Black=0 |
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123 // and Convert little endean to big. |
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124 byte = 0; |
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125 for (TInt bit=0; bit<8; bit++) |
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126 byte |= (line[word] & (1<<bit)) ? 0 : (1<<(7-bit)); |
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127 |
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128 convertedScanLine[word] = byte; |
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129 } |
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130 |
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131 pictureBuf->Des().Append(convertedScanLine); |
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132 } |
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133 |
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134 CleanupStack::PopAndDestroy(2, scanLine); |
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135 CleanupStack::Pop(pictureBuf); |
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136 return pictureBuf; |
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137 } |
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138 |
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139 EXPORT_C void CEmsPictureIE::CopyL(const CEmsPictureIE& aSrc) |
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140 /** |
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141 * @capability None |
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142 */ |
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143 { |
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144 __ASSERT_ALWAYS(aSrc.iPictureBuf, User::Leave(KErrCorrupt)); |
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145 CEmsInformationElement::CopyL(aSrc); |
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146 iSize = aSrc.iSize; |
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147 delete iPictureBuf; |
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148 iPictureBuf=NULL; |
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149 iPictureBuf = aSrc.iPictureBuf->AllocL(); |
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150 } |
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151 |
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152 /** |
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153 * Encodes the information element into its raw format. (no IE id) |
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154 * |
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155 * @param aPtr the buffer to be used which is to contain the data |
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156 * @param TBool boolean to indicate if it is for serialisation or encoding |
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157 */ |
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158 void CEmsPictureIE::EncodeBodyL(TPtr8 aPtr, TBool) const |
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159 { |
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160 __ASSERT_ALWAYS(iPictureBuf, User::Leave(KErrCorrupt)); |
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161 __ASSERT_ALWAYS(iSize.iWidth<255 && iSize.iHeight<255, User::Leave(KErrCorrupt)); |
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162 TBool variablePicture = ((iSize != KSmallPicSize) && (iSize != KLargePicSize)); |
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163 __ASSERT_ALWAYS((variablePicture && iIdentifier == CSmsInformationElement::ESmsEnhancedVariablePicture) || |
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164 (!variablePicture && iIdentifier != CSmsInformationElement::ESmsEnhancedVariablePicture), User::Leave(KErrCorrupt)); |
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165 |
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166 if (variablePicture) |
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167 { |
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168 aPtr.Append(static_cast<TUint8>(iSize.iWidth/8)); |
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169 aPtr.Append(static_cast<TUint8>(iSize.iHeight)); |
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170 } |
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171 |
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172 aPtr.Append(*iPictureBuf); |
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173 } |
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174 |
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175 |
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176 /** |
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177 * Decodes the raw data out of an information element into this class. |
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178 * |
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179 * @param aPtr The raw predefined animation data |
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180 * @param TBool boolean to indicate if it is from serialisation |
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181 * @leave KErrGeneral If the size of the data does not match what is expected. |
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182 */ |
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183 void CEmsPictureIE::DecodeBodyL(const TPtrC8 aPtr, TBool) |
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184 { |
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185 switch (iIdentifier) |
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186 { |
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187 case CSmsInformationElement::ESmsEnhancedSmallPicture: |
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188 __ASSERT_ALWAYS(aPtr.Length()==ESmallBufSize, User::Leave(KErrGeneral)); |
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189 iSize = KSmallPicSize; |
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190 break; |
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191 case CSmsInformationElement::ESmsEnhancedLargePicture: |
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192 __ASSERT_ALWAYS(aPtr.Length()==ELargeBufSize, User::Leave(KErrGeneral)); |
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193 iSize = KLargePicSize; |
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194 break; |
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195 case CSmsInformationElement::ESmsEnhancedVariablePicture: |
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196 iSize.iWidth = static_cast<TUint8>(aPtr[0]) * 8; |
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197 iSize.iHeight = static_cast<TUint8>(aPtr[1]); |
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198 __ASSERT_ALWAYS(aPtr.Length()==(iSize.iWidth/8*iSize.iHeight)+2, User::Leave(KErrGeneral)); |
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199 break; |
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200 default: |
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201 User::Leave(KErrArgument); |
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202 } |
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203 |
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204 delete iPictureBuf; |
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205 iPictureBuf = NULL; |
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206 if (iIdentifier == CSmsInformationElement::ESmsEnhancedVariablePicture) |
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207 iPictureBuf = aPtr.Mid(2).AllocL(); |
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208 else |
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209 iPictureBuf = aPtr.AllocL(); |
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210 } |
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211 |
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212 CEmsPictureIE::CEmsPictureIE() : CEmsInformationElement(CSmsInformationElement::ESmsEnhancedSmallPicture){}; |
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213 |
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214 EXPORT_C CEmsPictureIE::~CEmsPictureIE() |
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215 /** |
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216 * @capability None |
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217 */ |
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218 { |
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219 delete iPictureBuf; |
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220 } |
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221 |
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222 |
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223 |
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224 EXPORT_C CFbsBitmap* CEmsPictureIE::GetBitmapL() const |
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225 /** |
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226 * @capability None |
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227 */ |
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228 { |
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229 |
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230 CFbsBitmap* bitmap = new (ELeave) CFbsBitmap(); |
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231 CleanupStack::PushL(bitmap); |
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232 |
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233 TInt numLineBytes = iSize.iWidth/8; |
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234 User::LeaveIfError(bitmap->Create(iSize,EGray2)); |
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235 HBufC8* working = HBufC8::NewLC(numLineBytes); |
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236 TPtr8 convertedScanLine(working->Des()); |
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237 convertedScanLine.SetLength(numLineBytes); |
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238 |
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239 TUint8 byte = 0; |
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240 TUint8* adr=NULL; |
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241 |
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242 for (TInt line =0; line < iSize.iHeight; line++) |
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243 { |
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244 adr = &((iPictureBuf->Des())[(numLineBytes) * line]); |
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245 TPtr8 scanLine(adr, numLineBytes, numLineBytes); |
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246 |
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247 for (TInt word=0; word<numLineBytes; word++) |
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248 { |
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249 // Convert EMS Black=1 to Epoc Black=0 |
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250 // and Convert little endean to big. |
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251 byte=0; |
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252 for (TUint bit=0; bit<8; bit++) |
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253 byte |= (scanLine[word] & (1<<bit)) ? 0 : (1<<(7-bit)); |
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254 convertedScanLine[word] = byte; |
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255 } |
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256 |
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257 bitmap->SetScanLine(convertedScanLine, line); |
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258 } |
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259 CleanupStack::PopAndDestroy(working); |
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260 CleanupStack::Pop(bitmap); |
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261 return bitmap; |
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262 } |