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1 /* |
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2 * Copyright (c) 2006 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: Video Source subsystem. |
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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 // INCLUDE FILES |
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20 |
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21 #include <ecam.h> |
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22 #include <e32debug.h> |
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23 #include "CVSMMFDataBuffer.h" |
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24 |
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25 // MACROS |
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26 |
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27 #ifdef _DEBUG |
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28 # define __IF_DEBUG(t) {RDebug::t;} |
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29 #else |
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30 # define __IF_DEBUG(t) |
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31 #endif |
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32 |
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33 // ============================ CVSMMFDataBuffer =============================== |
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34 |
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35 // ----------------------------------------------------------------------------- |
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36 // CVSMMFDataBuffer::NewL |
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37 // ----------------------------------------------------------------------------- |
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38 // |
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39 EXPORT_C CVSMMFDataBuffer* CVSMMFDataBuffer::NewL() |
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40 { |
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41 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::NewL() >>"), RThread().Id().operator TUint())); |
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42 CVSMMFDataBuffer* self = new ( ELeave ) CVSMMFDataBuffer; |
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43 CleanupStack::PushL(self); |
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44 self->ConstructL( KMMFDataBufferDefaultBufferSize ); |
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45 CleanupStack::Pop(); // self |
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46 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::NewL <<"), RThread().Id().operator TUint())); |
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47 return self; |
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48 } |
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49 |
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50 // ----------------------------------------------------------------------------- |
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51 // CVSMMFDataBuffer::NewL |
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52 // ----------------------------------------------------------------------------- |
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53 // |
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54 EXPORT_C CVSMMFDataBuffer* CVSMMFDataBuffer::NewL( TInt aMaxBufferSize ) |
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55 { |
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56 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::NewL() >>"), RThread().Id().operator TUint())); |
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57 CVSMMFDataBuffer* self = new ( ELeave ) CVSMMFDataBuffer; |
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58 CleanupStack::PushL(self); |
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59 self->ConstructL( aMaxBufferSize ); |
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60 CleanupStack::Pop(); // self |
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61 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::NewL <<"), RThread().Id().operator TUint())); |
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62 return self; |
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63 } |
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64 |
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65 // ----------------------------------------------------------------------------- |
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66 // CVSMMFDataBuffer::~CVSMMFDataBuffer |
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67 // ----------------------------------------------------------------------------- |
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68 // |
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69 EXPORT_C CVSMMFDataBuffer::~CVSMMFDataBuffer() |
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70 { |
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71 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::~CVSMMFDataBuffer() >>"), RThread().Id().operator TUint())); |
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72 delete[] iData; |
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73 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::~CVSMMFDataBuffer() <<"), RThread().Id().operator TUint())); |
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74 } |
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75 |
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76 // ----------------------------------------------------------------------------- |
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77 // CVSMMFDataBuffer::ReAllocBufferL |
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78 // ----------------------------------------------------------------------------- |
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79 // |
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80 void CVSMMFDataBuffer::ReAllocBufferL( TInt aMaxBufferSize ) |
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81 { |
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82 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::ReAllocBufferL() >>"), RThread().Id().operator TUint())); |
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83 if ( !iIsBufferSet ) |
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84 { |
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85 TUint8* tmp = new (ELeave) TUint8[aMaxBufferSize]; |
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86 delete[] iData; |
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87 iData = tmp; |
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88 iPtr.Set( iData, 0, aMaxBufferSize ); |
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89 iMaxBufferSize = aMaxBufferSize; |
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90 } |
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91 else |
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92 { |
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93 User::Leave( KErrNotSupported ); |
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94 } |
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95 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::ReAllocBufferL() <<"), RThread().Id().operator TUint())); |
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96 } |
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97 |
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98 // ----------------------------------------------------------------------------- |
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99 // CVSMMFDataBuffer::NeedsReset |
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100 // ----------------------------------------------------------------------------- |
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101 // |
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102 TBool CVSMMFDataBuffer::NeedsReset() const |
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103 { |
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104 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::NeedsReset() ><"), RThread().Id().operator TUint())); |
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105 return iNeedsReset; |
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106 } |
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107 |
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108 // ----------------------------------------------------------------------------- |
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109 // CVSMMFDataBuffer::SetNeedsReset |
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110 // ----------------------------------------------------------------------------- |
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111 // |
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112 void CVSMMFDataBuffer::SetNeedsReset( TBool aNeedsReset ) |
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113 { |
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114 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetNeedsReset() >>"), RThread().Id().operator TUint())); |
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115 iNeedsReset = aNeedsReset; |
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116 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetNeedsReset() <<"), RThread().Id().operator TUint())); |
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117 } |
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118 |
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119 // ----------------------------------------------------------------------------- |
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120 // CVSMMFDataBuffer::Reset |
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121 // ----------------------------------------------------------------------------- |
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122 // |
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123 void CVSMMFDataBuffer::Reset() |
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124 { |
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125 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::Reset() >>"), RThread().Id().operator TUint())); |
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126 iPtr.Zero(); |
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127 SetNeedsReset( EFalse ); |
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128 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::Reset() <<"), RThread().Id().operator TUint())); |
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129 } |
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130 |
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131 // ----------------------------------------------------------------------------- |
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132 // CVSMMFDataBuffer::Data |
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133 // ----------------------------------------------------------------------------- |
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134 // |
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135 TDes8& CVSMMFDataBuffer::Data() |
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136 { |
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137 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::Data() >>"), RThread().Id().operator TUint())); |
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138 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::Data() <<"), RThread().Id().operator TUint())); |
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139 return iPtr; |
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140 } |
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141 |
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142 // ----------------------------------------------------------------------------- |
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143 // CVSMMFDataBuffer::Data |
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144 // ----------------------------------------------------------------------------- |
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145 // |
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146 const TDesC8& CVSMMFDataBuffer::Data() const |
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147 { |
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148 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::Data() >>"), RThread().Id().operator TUint())); |
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149 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::Data() <<"), RThread().Id().operator TUint())); |
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150 return iPtr; |
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151 } |
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152 |
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153 // ----------------------------------------------------------------------------- |
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154 // CVSMMFDataBuffer::SetStatus |
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155 // ----------------------------------------------------------------------------- |
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156 // |
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157 void CVSMMFDataBuffer::SetStatus( TBufferStatus aStatus ) |
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158 { |
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159 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetStatus() >>"), RThread().Id().operator TUint())); |
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160 CMMFBuffer::SetStatus( aStatus ); |
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161 if ( iStatus == EBeingFilled ) |
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162 { |
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163 Reset(); |
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164 } |
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165 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetStatus() <<"), RThread().Id().operator TUint())); |
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166 } |
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167 |
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168 // ----------------------------------------------------------------------------- |
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169 // CVSMMFDataBuffer::SetRequestSizeL |
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170 // ----------------------------------------------------------------------------- |
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171 // |
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172 void CVSMMFDataBuffer::SetRequestSizeL( TInt aSize ) |
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173 { |
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174 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetRequestSizeL() >>"), RThread().Id().operator TUint())); |
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175 if ( aSize < 0 ) |
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176 { |
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177 User::Leave( KErrUnderflow ); |
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178 } |
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179 else if ( aSize > iPtr.MaxLength() ) |
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180 { |
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181 User::Leave( KErrOverflow ); |
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182 } |
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183 else |
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184 { |
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185 iRequestSize = aSize; |
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186 } |
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187 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetRequestSizeL() <<"), RThread().Id().operator TUint())); |
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188 } |
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189 |
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190 // ----------------------------------------------------------------------------- |
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191 // CVSMMFDataBuffer::BufferSize |
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192 // ----------------------------------------------------------------------------- |
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193 // |
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194 TUint CVSMMFDataBuffer::BufferSize() const |
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195 { |
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196 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::BufferSize() >>"), RThread().Id().operator TUint())); |
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197 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::BufferSize() <<"), RThread().Id().operator TUint())); |
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198 return iPtr.Length(); |
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199 } |
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200 |
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201 // ----------------------------------------------------------------------------- |
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202 // CVSMMFDataBuffer::SetPosition |
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203 // ----------------------------------------------------------------------------- |
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204 // |
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205 void CVSMMFDataBuffer::SetPosition( TUint aPosition ) |
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206 { |
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207 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetPosition() >>"), RThread().Id().operator TUint())); |
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208 if ( aPosition <= (TUint)iPtr.Length() ) |
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209 { |
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210 iPosition = aPosition; |
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211 } |
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212 else |
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213 { |
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214 iPosition = (TUint)iPtr.Length(); // Tried to position beyond end of |
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215 // data |
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216 } |
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217 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetPosition() <<"), RThread().Id().operator TUint())); |
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218 } |
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219 |
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220 // ----------------------------------------------------------------------------- |
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221 // CVSMMFDataBuffer::SetFrameBufferL |
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222 // ----------------------------------------------------------------------------- |
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223 // |
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224 void CVSMMFDataBuffer::SetFrameBufferL( MFrameBuffer* aFrameBuffer ) |
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225 { |
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226 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetFrameBuffer() >>"), RThread().Id().operator TUint())); |
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227 iFrameBuffer = aFrameBuffer; |
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228 //Buffer is valid |
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229 iIsBufferSet = ETrue; |
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230 if ( aFrameBuffer == NULL ) |
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231 { |
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232 iPtr.Set( iData, 0, iMaxBufferSize ); |
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233 } |
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234 else |
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235 { |
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236 Reset(); |
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237 TPtrC8 ptr( *iFrameBuffer->DataL( 0 ) ); |
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238 iPtr.Set((TUint8*)ptr.Ptr(), ptr.Size(), ptr.Size()); |
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239 } |
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240 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetFrameBuffer() <<"), RThread().Id().operator TUint())); |
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241 } |
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242 |
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243 // ----------------------------------------------------------------------------- |
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244 // CVSMMFDataBuffer::SetFrameBufferL |
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245 // ----------------------------------------------------------------------------- |
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246 // |
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247 void CVSMMFDataBuffer::SetFrameBufferL( MCameraBuffer* aCameraBuffer ) |
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248 { |
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249 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetFrameBuffer() >>"), RThread().Id().operator TUint())); |
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250 iCameraBuffer = aCameraBuffer; |
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251 //Buffer is valid |
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252 iIsBufferSet = ETrue; |
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253 if ( aCameraBuffer == NULL ) |
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254 { |
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255 iPtr.Set( iData, 0, iMaxBufferSize ); |
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256 } |
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257 else |
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258 { |
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259 Reset(); |
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260 // Take the latest frame data from buffer should be always 0, |
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261 // but if buffer contains more than 1 frame could be something else |
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262 TPtrC8 ptr( *iCameraBuffer->DataL( iCameraBuffer->NumFrames() - 1 ) ); |
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263 iPtr.Set((TUint8*)ptr.Ptr(), ptr.Size(), ptr.Size()); |
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264 } |
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265 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetFrameBuffer() <<"), RThread().Id().operator TUint())); |
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266 } |
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267 |
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268 |
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269 |
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270 // ----------------------------------------------------------------------------- |
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271 // CVSMMFDataBuffer::ReleaseL |
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272 // ----------------------------------------------------------------------------- |
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273 // |
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274 void CVSMMFDataBuffer::ReleaseL() |
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275 { |
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276 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::Release() >>"), RThread().Id().operator TUint())); |
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277 if( iFrameBuffer ) |
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278 { |
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279 iFrameBuffer->Release(); |
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280 SetFrameBufferL( (MFrameBuffer*)NULL ); |
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281 } |
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282 else if( iCameraBuffer ) |
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283 { |
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284 iCameraBuffer->Release(); |
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285 SetFrameBufferL( (MCameraBuffer*)NULL ); |
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286 } |
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287 else |
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288 { |
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289 if ( iPtr.Ptr() != iData ) |
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290 { |
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291 iPtr.Set( iData, 0, iMaxBufferSize ); |
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292 } |
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293 if( NeedsReset() ) |
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294 { |
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295 Reset(); |
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296 } |
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297 } |
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298 |
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299 //Buffer is no longer valid |
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300 iIsBufferSet = EFalse; |
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301 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::Release() <<"), RThread().Id().operator TUint())); |
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302 } |
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303 |
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304 // ----------------------------------------------------------------------------- |
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305 // CVSMMFDataBuffer::SetBufferOffset |
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306 // ----------------------------------------------------------------------------- |
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307 // |
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308 void CVSMMFDataBuffer::SetBufferOffset( TInt aOffset ) |
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309 { |
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310 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetBufferOffset() >>"), RThread().Id().operator TUint())); |
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311 if ( !iIsBufferSet ) |
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312 { |
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313 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetBufferOffset(): Length = %d, Offset = %d"), RThread().Id().operator TUint(), iPtr.Length(), aOffset)); |
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314 iPtr.Set( iData + aOffset, iPtr.Length() - aOffset, iMaxBufferSize ); |
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315 } |
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316 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::SetBufferOffset() <<"), RThread().Id().operator TUint())); |
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317 } |
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318 |
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319 // ----------------------------------------------------------------------------- |
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320 // CVSMMFDataBuffer::CVSMMFDataBuffer |
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321 // ----------------------------------------------------------------------------- |
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322 // |
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323 CVSMMFDataBuffer::CVSMMFDataBuffer() : |
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324 CMMFDataBuffer( KUidMmfDataBuffer ), iPtr(0,0,0), iIsBufferSet(EFalse) |
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325 { |
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326 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::CVSMMFDataBuffer() >>"), RThread().Id().operator TUint())); |
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327 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::CVSMMFDataBuffer() <<"), RThread().Id().operator TUint())); |
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328 } |
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329 |
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330 // ----------------------------------------------------------------------------- |
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331 // CVSMMFDataBuffer::ConstructL |
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332 // ----------------------------------------------------------------------------- |
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333 // |
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334 void CVSMMFDataBuffer::ConstructL( TInt aMaxBufferSize ) |
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335 { |
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336 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::ConstructL() >>"), RThread().Id().operator TUint())); |
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337 iData = new (ELeave) TUint8[aMaxBufferSize]; |
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338 iPtr.Set( iData, 0, aMaxBufferSize ); |
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339 iMaxBufferSize = aMaxBufferSize; |
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340 __IF_DEBUG(Print(_L("VideoSource[%d]: CVSMMFDataBuffer::ConstructL() <<"), RThread().Id().operator TUint())); |
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341 } |
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342 |
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343 // End of File |