1 /* |
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2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies). |
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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 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Still Image Encoder for Camera Application Engine |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 // INCLUDE FILES |
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21 #include <eikenv.h> |
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22 |
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23 #include "CaeStillConverter.h" |
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24 #include "CaeStillEncoder.h" |
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25 #include "CaeStillCommon.h" |
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26 |
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27 #ifdef CAE_TEST_VERSION |
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28 #include "CaeStillConverterTestErrors.h" |
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29 #endif |
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30 |
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31 |
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32 // ================= MEMBER FUNCTIONS ======================= |
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33 |
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34 |
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35 // --------------------------------------------------------- |
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36 // CCaeStillEncoder::NewL |
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37 // Two-phased constructor. |
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38 // --------------------------------------------------------- |
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39 // |
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40 EXPORT_C CCaeStillEncoder* CCaeStillEncoder::NewL() |
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41 { |
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42 CCaeStillEncoder* self = new( ELeave ) CCaeStillEncoder; |
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43 CleanupStack::PushL( self ); |
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44 self->ConstructL(); |
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45 CleanupStack::Pop( self ); |
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46 return self; |
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47 } |
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48 |
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49 |
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50 // --------------------------------------------------------- |
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51 // CCaeStillEncoder::~CCaeStillEncoder |
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52 // Destructor. |
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53 // --------------------------------------------------------- |
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54 // |
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55 EXPORT_C CCaeStillEncoder::~CCaeStillEncoder() |
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56 { |
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57 Cancel(); |
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58 Cleanup(); |
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59 |
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60 // For RTRT code coverage analysis. |
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61 // #pragma attol insert _ATCPQ_DUMP(0); |
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62 } |
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63 |
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64 |
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65 // --------------------------------------------------------- |
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66 // CCaeStillEncoder::SetObserver |
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67 // Sets Still encoder observer. |
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68 // --------------------------------------------------------- |
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69 // |
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70 EXPORT_C void CCaeStillEncoder::SetObserver( |
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71 MCaeStillEncoderObserver* aObserver ) |
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72 { |
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73 iObserver = aObserver; |
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74 } |
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75 |
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76 |
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77 // ----------------------------------------------------------------------------- |
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78 // CCaeStillEncoder::SetImageCodecL |
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79 // Sets the specific image codec implementation to be used in encoding. |
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80 // ----------------------------------------------------------------------------- |
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81 // |
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82 void CCaeStillEncoder::SetImageCodecL( |
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83 TUid aCodecUid ) |
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84 { |
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85 iImageCodecUid = aCodecUid; |
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86 } |
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87 |
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88 // --------------------------------------------------------- |
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89 // CCaeStillEncoder::SetCompressionQuality |
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90 // Sets compression quality. |
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91 // --------------------------------------------------------- |
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92 // |
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93 EXPORT_C void CCaeStillEncoder::SetCompressionQuality( |
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94 TInt aQuality ) |
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95 { |
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96 iJpegQuality = Min( KJpegQualityMax, Max( KJpegQualityMin, aQuality ) ); |
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97 } |
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98 |
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99 |
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100 // --------------------------------------------------------- |
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101 // CCaeStillEncoder::CompressionQuality |
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102 // Gets compression quality. |
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103 // --------------------------------------------------------- |
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104 // |
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105 EXPORT_C TInt CCaeStillEncoder::CompressionQuality() const |
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106 { |
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107 return iJpegQuality; |
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108 } |
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109 |
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110 |
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111 // --------------------------------------------------------- |
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112 // CCaeStillEncoder::ConvertCFbsBitmapToHBufC8L |
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113 // Creates CImageItem object, places it in the internal |
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114 // queue and starts bitmap to memory image conversion. |
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115 // --------------------------------------------------------- |
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116 // |
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117 EXPORT_C void CCaeStillEncoder::ConvertCFbsBitmapToHBufC8L( |
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118 CFbsBitmap* aBitmap, |
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119 TTargetFormat aTargetFormat ) |
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120 { |
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121 LOGTEXT( _L( "Cae: CCaeStillEncoder::ConvertCFbsBitmapToHBufC8L() entering" ) ); |
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122 |
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123 CleanupStack::PushL( aBitmap ); |
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124 |
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125 // Create image item and set up image data. |
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126 |
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127 CImageItem* imageItem = new( ELeave ) CImageItem; |
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128 |
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129 imageItem->iBitmap = aBitmap; |
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130 |
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131 CleanupStack::Pop( aBitmap ); |
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132 CleanupStack::PushL( imageItem ); |
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133 |
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134 switch ( aTargetFormat ) |
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135 { |
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136 case ETargetFormatJPEG: |
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137 default: |
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138 { |
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139 imageItem->iImageTypeUid = KImageTypeJPGUid; |
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140 |
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141 imageItem->iFrameImageData = CFrameImageData::NewL(); |
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142 // ( do not push member variable to cleanup stack ) |
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143 |
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144 TJpegImageData* imagedata = new( ELeave ) TJpegImageData; |
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145 CleanupStack::PushL( imagedata ); |
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146 |
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147 imagedata->iSampleScheme = KCaeJpegColorSampling; |
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148 imagedata->iQualityFactor = iJpegQuality; |
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149 |
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150 User::LeaveIfError ( imageItem->iFrameImageData->AppendImageData( imagedata ) ); |
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151 |
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152 CleanupStack::Pop( imagedata ); |
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153 break; |
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154 } |
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155 } |
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156 |
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157 #ifdef CAE_TEST_VERSION |
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158 // For simulating errors when compiled as special "test version". |
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159 CaeConvertCFbsBitmapToHBufC8ErrorL(); |
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160 #endif |
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161 |
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162 // Append image to the queue. |
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163 User::LeaveIfError ( iImageQueue->Append( imageItem ) ); |
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164 |
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165 CleanupStack::Pop( imageItem ); |
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166 |
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167 // Start image conversion if not busy. |
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168 if ( !IsBusy() ) |
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169 { |
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170 TRAPD( error, ConvertL() ); |
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171 if ( error != KErrNone ) |
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172 { |
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173 ConversionComplete( error ); |
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174 } |
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175 } |
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176 |
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177 LOGTEXT( _L( "Cae: CCaeStillEncoder::ConvertCFbsBitmapToHBufC8L() returning" ) ); |
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178 } |
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179 |
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180 |
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181 // --------------------------------------------------------- |
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182 // CCaeStillEncoder::Cleanup |
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183 // Destroy all allocations. |
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184 // --------------------------------------------------------- |
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185 // |
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186 EXPORT_C void CCaeStillEncoder::Cleanup() |
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187 { |
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188 if ( iEncoder ) |
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189 { |
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190 iEncoder->Cancel(); |
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191 delete iEncoder; |
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192 iEncoder = NULL; |
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193 } |
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194 |
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195 if ( iState != EIdle ) |
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196 { |
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197 delete iEncodedImage; |
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198 iEncodedImage = NULL; |
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199 } |
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200 |
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201 if ( iImageQueue ) |
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202 { |
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203 iImageQueue->ResetAndDestroy(); |
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204 } |
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205 } |
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206 |
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207 |
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208 // --------------------------------------------------------- |
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209 // CCaeStillEncoder::CCaeStillEncoder |
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210 // Default constructor. |
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211 // This can NOT leave. |
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212 // --------------------------------------------------------- |
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213 // |
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214 CCaeStillEncoder::CCaeStillEncoder() : |
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215 iJpegQuality( KJpegQualityMax ) |
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216 { |
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217 CActiveScheduler::Add( this ); |
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218 } |
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219 |
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220 |
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221 // --------------------------------------------------------- |
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222 // CCaeStillEncoder::ConstructL |
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223 // Symbian 2nd phase constructor that can leave. |
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224 // --------------------------------------------------------- |
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225 // |
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226 void CCaeStillEncoder::ConstructL() |
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227 { |
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228 CCaeStillConverter::ConstructL(); |
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229 } |
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230 |
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231 |
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232 // --------------------------------------------------------- |
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233 // CCaeStillEncoder::DoCancel |
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234 // From CActive, implements cancellation of an outstanding request. |
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235 // --------------------------------------------------------- |
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236 // |
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237 void CCaeStillEncoder::DoCancel() |
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238 { |
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239 Cleanup(); |
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240 iState = EIdle; |
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241 } |
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242 |
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243 |
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244 // --------------------------------------------------------- |
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245 // CCaeStillEncoder::ConvertL |
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246 // Converts bitmap to memory JPEG image. |
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247 // Allocates Image Conversion Library (ICL) encoder and |
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248 // starts conversion. |
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249 // --------------------------------------------------------- |
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250 // |
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251 void CCaeStillEncoder::ConvertL() |
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252 { |
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253 LOGTEXT( _L( "Cae: CCaeStillEncoder::ConvertL() entering" ) ); |
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254 |
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255 // Do not delete the encoded image here, just set to NULL. |
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256 iEncodedImage = NULL; |
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257 |
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258 // Allocate new ICL encoder. |
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259 delete iEncoder; |
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260 iEncoder = NULL; |
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261 |
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262 // Use the default codec or the specific codec |
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263 iEncoder = CImageEncoder::DataNewL( iEncodedImage, |
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264 CImageEncoder::EOptionNone, (*iImageQueue)[0]->iImageTypeUid, |
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265 KNullUid, iImageCodecUid ); |
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266 |
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267 LOGTEXT3( _L( "Cae: CCaeStillEncoder::ConvertL(). Requested encoder: %x, Found encoder: %x" ), iImageCodecUid.iUid, iEncoder->ImplementationUid().iUid ); |
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268 |
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269 #ifdef CAE_TEST_VERSION |
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270 // For simulating errors when compiled as special "test version". |
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271 CaeStillConvertErrorL(); |
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272 #endif |
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273 |
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274 iState = EConvert; |
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275 iStatus = KRequestPending; |
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276 iEncoder->Convert( &iStatus, |
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277 *(*iImageQueue)[0]->iBitmap, |
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278 (*iImageQueue)[0]->iFrameImageData ); |
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279 SetActive(); |
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280 |
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281 LOGTEXT( _L( "Cae: CCaeStillEncoder::ConvertL() returning" ) ); |
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282 } |
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283 |
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284 |
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285 // --------------------------------------------------------- |
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286 // CCaeStillEncoder::ConversionComplete |
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287 // Perfoms necessary cleanup and delivers result |
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288 // to the client. |
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289 // --------------------------------------------------------- |
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290 // |
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291 void CCaeStillEncoder::ConversionComplete( |
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292 TInt aError ) |
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293 { |
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294 LOGTEXT( _L( "Cae: CCaeStillEncoder::ConversionComplete() entering" ) ); |
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295 #ifdef _DEBUG |
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296 if ( aError ) |
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297 { |
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298 LOGTEXT2( _L( "Cae: CCaeStillEncoder::ConversionComplete(): error detected: %d" ), aError ); |
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299 } |
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300 #endif |
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301 |
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302 if ( iEncoder ) |
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303 { |
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304 iEncoder->Cancel(); |
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305 delete iEncoder; |
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306 iEncoder = NULL; |
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307 } |
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308 |
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309 // To be outputted via call-back. |
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310 CFbsBitmap* bitmap = NULL; |
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311 |
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312 if ( iImageQueue->Count() > 0 ) |
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313 { |
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314 bitmap = (*iImageQueue)[0]->iBitmap; |
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315 |
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316 (*iImageQueue)[0]->iBitmap = NULL; // Prevent deletion of source image. |
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317 delete ( *iImageQueue )[0]; |
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318 |
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319 // Remove item pointer from the queue and compress the queue. |
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320 iImageQueue->Remove( 0 ); |
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321 } |
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322 |
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323 iState = EIdle; |
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324 |
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325 const TInt KZeroImageSize = 0; // Image size argument currently not in use. |
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326 |
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327 // Call back the client to deliver the result image. Gives away the ownership of the bitmap |
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328 // and iEncodedImage. |
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329 iObserver->McaeseoHBufC8ImageReady( bitmap, iEncodedImage, aError, KZeroImageSize ); |
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330 iEncodedImage = NULL; // Ownership has been given away |
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331 |
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332 LOGTEXT( _L( "Cae: CCaeStillEncoder::ConversionComplete() returning" ) ); |
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333 } |
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334 |
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335 |
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336 // End of File |
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