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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (developer.feedback@nokia.com) |
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6 ** |
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7 ** This file is part of the HbCore module of the UI Extensions for Mobile. |
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8 ** |
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9 ** GNU Lesser General Public License Usage |
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10 ** This file may be used under the terms of the GNU Lesser General Public |
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11 ** License version 2.1 as published by the Free Software Foundation and |
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12 ** appearing in the file LICENSE.LGPL included in the packaging of this file. |
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13 ** Please review the following information to ensure the GNU Lesser General |
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14 ** Public License version 2.1 requirements will be met: |
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15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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16 ** |
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17 ** In addition, as a special exception, Nokia gives you certain additional |
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18 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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20 ** |
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21 ** If you have questions regarding the use of this file, please contact |
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22 ** Nokia at developer.feedback@nokia.com. |
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23 ** |
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24 ****************************************************************************/ |
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25 |
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26 #include "hbnvgrasterizer_p.h" |
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27 |
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28 #if defined (HB_NVG_CS_ICON) |
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29 #include <nvg.h> |
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30 // Note: Cases of the following two directory names intentionally differ to |
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31 // match the cases of the corresponding directories in Symbian 4. |
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32 #include <VG/openvg.h> |
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33 #include <vg/vgcontext_symbian.h> |
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34 |
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35 struct HbNvgAspectRatioSettings |
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36 { |
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37 TNvgAlignStatusType nvgAlignStatusAndAspectRatio; |
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38 TNvgMeetOrSliceType type; |
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39 }; |
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40 #endif //HB_NVG_CS_ICON |
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41 |
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42 /*! |
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43 \fn mapKeyAspectRatioToNvgAspectRatio() |
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44 \a aspectRatio |
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45 */ |
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46 HbNvgAspectRatioSettings mapKeyAspectRatioToNvgAspectRatio( |
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47 Qt::AspectRatioMode aspectRatio) |
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48 { |
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49 HbNvgAspectRatioSettings settings; |
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50 switch(aspectRatio) { |
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51 |
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52 case Qt::IgnoreAspectRatio: { |
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53 settings.nvgAlignStatusAndAspectRatio = ENvgPreserveAspectRatio_None; |
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54 settings.type = ENvgMeet; |
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55 break; |
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56 } |
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57 case Qt::KeepAspectRatio: { |
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58 settings.nvgAlignStatusAndAspectRatio = ENvgPreserveAspectRatio_XmidYmid; |
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59 settings.type = ENvgMeet; |
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60 break; |
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61 } |
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62 case Qt::KeepAspectRatioByExpanding: { |
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63 settings.nvgAlignStatusAndAspectRatio = ENvgPreserveAspectRatio_XmidYmid; |
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64 settings.type = ENvgSlice; |
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65 break; |
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66 } |
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67 default: { |
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68 settings.nvgAlignStatusAndAspectRatio = ENvgPreserveAspectRatio_XmidYmid; |
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69 settings.type = ENvgMeet; |
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70 break; |
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71 } |
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72 } |
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73 return settings; |
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74 } |
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75 |
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76 /*! |
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77 \fn mapToVgiDisplayFormat() |
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78 \a imageFormat |
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79 */ |
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80 VGIColorBufferFormat mapToVgiDisplayFormat(QImage::Format imageFormat) |
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81 { |
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82 VGIColorBufferFormat format = VGI_COLOR_BUFFER_FORMAT_ARGB8888_PRE; |
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83 switch(imageFormat) |
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84 { |
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85 case QImage::Format_Mono: |
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86 case QImage::Format_RGB32: |
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87 case QImage::Format_ARGB32: |
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88 format = VGI_COLOR_BUFFER_FORMAT_ARGB8888; |
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89 break; |
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90 case QImage::Format_ARGB32_Premultiplied: |
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91 format = VGI_COLOR_BUFFER_FORMAT_ARGB8888_PRE; |
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92 break; |
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93 case QImage::Format_RGB16: |
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94 case QImage::Format_ARGB8565_Premultiplied: |
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95 case QImage::Format_RGB666: |
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96 case QImage::Format_ARGB6666_Premultiplied: |
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97 case QImage::Format_RGB555: |
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98 case QImage::Format_ARGB8555_Premultiplied: |
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99 break; |
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100 case QImage::Format_RGB888: |
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101 format = VGI_COLOR_BUFFER_FORMAT_RGB888; |
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102 break; |
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103 case QImage::Format_RGB444: |
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104 case QImage::Format_ARGB4444_Premultiplied: |
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105 case QImage::Format_Invalid: |
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106 break; |
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107 } |
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108 return format; |
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109 } |
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110 |
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111 static HbNvgRasterizer *nvgRasterizer = 0; |
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112 |
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113 HbNvgRasterizer* HbNvgRasterizer::global() |
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114 { |
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115 if (!nvgRasterizer) { |
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116 nvgRasterizer = new HbNvgRasterizer(); |
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117 } |
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118 return nvgRasterizer; |
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119 } |
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120 |
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121 HbNvgRasterizer::HbNvgRasterizer() : vgiSymbianInit(false), nvgEngine(0) |
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122 { |
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123 } |
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124 |
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125 HbNvgRasterizer::~HbNvgRasterizer() |
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126 { |
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127 terminate(); |
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128 } |
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129 |
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130 bool HbNvgRasterizer::initialize(int width, int height) |
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131 { |
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132 vgiSymbianInit = false; |
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133 |
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134 TInt err = VGISymbianInitialize( TSize(width, height), VGI_COLORSPACE_SRGB ); |
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135 if( err == KErrAlreadyExists || err == KErrNone) { |
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136 vgiSymbianInit = true; |
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137 } |
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138 |
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139 if (vgiSymbianInit) { |
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140 TRAP(err, nvgEngine = CNvgEngine::NewL()); |
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141 if (err != KErrNone) { |
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142 return (vgiSymbianInit = false); |
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143 } |
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144 } |
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145 |
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146 return vgiSymbianInit; |
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147 } |
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148 |
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149 bool HbNvgRasterizer::terminate() |
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150 { |
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151 if (vgiSymbianInit) { |
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152 VGISymbianTerminate(); |
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153 vgiSymbianInit = false; |
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154 } |
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155 |
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156 return true; |
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157 } |
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158 |
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159 bool HbNvgRasterizer::rasterize(const QByteArray &nvgData, |
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160 const QSizeF &renderSize, |
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161 Qt::AspectRatioMode aspectRatioMode, |
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162 QImage & destination, |
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163 QImage::Format imageFormat) |
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164 { |
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165 if (destination.isNull()) { |
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166 destination = QImage(renderSize.toSize(), imageFormat); |
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167 } |
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168 |
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169 TUint8 * imageData = destination.bits(); |
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170 TInt stride = destination.bytesPerLine(); |
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171 |
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172 return rasterize(nvgData, renderSize, aspectRatioMode, imageData, stride, imageFormat); |
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173 } |
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174 |
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175 bool HbNvgRasterizer::rasterize(const QByteArray &nvgData, |
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176 const QSizeF &renderSize, |
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177 Qt::AspectRatioMode aspectRatioMode, |
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178 void * destination, int stride, |
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179 QImage::Format imageFormat) |
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180 { |
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181 initialize(renderSize.width(), renderSize.height()); |
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182 bool isIconCreated = false; |
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183 TSize surfaceSize(TSize(renderSize.width(), renderSize.height())); |
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184 |
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185 if (!vgiSymbianInit) { |
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186 if (!initialize(surfaceSize.iWidth, surfaceSize.iHeight)) { |
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187 return isIconCreated; |
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188 } |
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189 } |
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190 |
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191 TInt err = VGISymbianResize(surfaceSize); |
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192 if(err != KErrNone) { |
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193 return isIconCreated; |
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194 } |
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195 |
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196 HbNvgAspectRatioSettings settings = mapKeyAspectRatioToNvgAspectRatio(aspectRatioMode); |
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197 nvgEngine->SetPreserveAspectRatio(settings.nvgAlignStatusAndAspectRatio, settings.type); |
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198 |
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199 |
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200 nvgEngine->SetBackgroundColor(0xFFFFFF00); |
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201 |
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202 TPtr8 data((unsigned char*)nvgData.data(), nvgData.length(), nvgData.length()); |
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203 err = nvgEngine->DrawNvg(data, surfaceSize, 0, 0); |
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204 if(err !=KErrNone) { |
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205 return isIconCreated; |
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206 } |
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207 |
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208 //copy the data from the surface |
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209 VGIColorBufferFormat format = (VGIColorBufferFormat)mapToVgiDisplayFormat(imageFormat); |
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210 |
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211 err = VGICopyToTarget(format, stride, destination, 0, NULL, VGI_COPY_TRANSPARENT_PIXELS); |
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212 if (err == VGI_OK) { |
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213 isIconCreated = true; |
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214 } |
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215 |
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216 // destroy the previous surface, |
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217 // as we don't have a way to clear the surface |
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218 terminate(); |
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219 |
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220 return isIconCreated; |
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221 } |
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222 |