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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: Graphics Extension Library header file |
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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 #ifndef GFX2DGCOPENVG_H |
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20 #define GFX2DGCOPENVG_H |
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21 |
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22 #include "Gfx2dGcInterface.h" |
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23 #include "GfxRendererInfoP.h" |
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24 #include "VGRenderer.h" |
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25 #include <SVGRendererId.h> |
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26 #include "VGSurface.h" |
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27 #include <VG/openvg.h> |
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28 |
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29 const TUint8 KMediaAnimationVisible = 2; |
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30 |
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31 /** |
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32 * This class provides the interface create a graphics context. |
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33 * |
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34 * @lib Gfx2D.lib |
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35 * @since 1.0 |
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36 */ |
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37 class CGfx2dGcOpenVG : public CGfx2dGc |
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38 { |
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39 public: |
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40 |
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41 /** |
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42 * Two-phase constructor. |
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43 * |
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44 * @since 1.0 |
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45 * @param |
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46 * @return |
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47 */ |
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48 static CGfx2dGcOpenVG* NewL( const TSize aBufferSize, TFontSpec& aFontSpec, CSvgBitmapFontProvider* aSvgBitmapFontProvider, TBool aIsMain = ETrue ); |
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49 |
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50 static CGfx2dGcOpenVG* NewL( const TSize aBufferSize, TFontSpec& aFontSpec, CSvgBitmapFontProvider* aSvgBitmapFontProvider,SVGRendererId aRendererType,TBool aIsMain = ETrue ); |
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51 void GetFontScaled( TFloatFixPt aHeight, const TDesC& aTypefaceName, CFont*& aFont, TFontSpec& aFontSpec ); |
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52 |
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53 /** |
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54 * Destructor |
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55 */ |
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56 virtual ~CGfx2dGcOpenVG(); |
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57 |
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58 |
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59 /** |
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60 * Draw the given shape. |
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61 * |
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62 * @since 1.0 |
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63 * @param aShape : shape to draw. |
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64 * @return |
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65 */ |
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66 void DrawL( MGfxShape* aShape ); |
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67 |
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68 /** |
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69 * Draw the given string starting at the given context coordinate, |
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70 * and stylized by the given parameters. |
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71 * |
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72 * @since 1.0 |
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73 * @param aDesc : string to draw |
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74 * @param aX : x coordinate |
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75 * @param aTextAnchor : text anchor |
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76 * @param aTextDecoration : text decoration |
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77 * @param aFamilies : font family names |
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78 * @param aWordSpacing : spacing description for each word |
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79 * @param aLetterSpacing : spacing description for each letter |
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80 * @param aArrayRotate : angle of rotation |
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81 * @param aArrayX : array of x coordinates |
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82 * @param aArrayY : array of x coordinates |
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83 * @return |
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84 */ |
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85 void DrawStringL( const TDesC& aDesc, |
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86 TFloatFixPt aX, |
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87 TFloatFixPt aY, |
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88 TInt8 aTextAnchor, |
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89 TInt8 aTextDecoration, |
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90 CDesCArrayFlat* aFamilies, |
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91 TReal aWordSpacing, |
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92 TReal aLetterSpacing, |
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93 CArrayFix<TReal32>* aArrayRotate, |
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94 CArrayFix<TFloatFixPt>* aArrayX, |
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95 CArrayFix<TFloatFixPt>* aArrayY, |
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96 TSize& aBoundingBoxResult, |
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97 CFont*& aFont, |
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98 TFontSpec& aFontSpec); |
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99 |
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100 /** |
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101 * Draw the given bitmap at the given top-left coordinates. |
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102 * |
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103 * @since 1.0 |
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104 * @param aDesc : bitmap image to draw |
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105 * @param aX : x coordinate |
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106 * @param aY : y coordinate |
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107 * @return |
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108 */ |
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109 void DrawImage( CFbsBitmap* aImage, |
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110 const TGfxRectangle2D& aImageRect, |
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111 TBool aHasAlpha = EFalse ); |
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112 |
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113 /** |
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114 * Clear the whole graphics context. |
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115 * |
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116 * @since 1.0 |
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117 * @param |
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118 * @return |
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119 */ |
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120 void Clear(TUint32 aRGBA8888Color); |
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121 |
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122 /** |
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123 * Get the foreground color setting. |
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124 * |
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125 * @since 1.0 |
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126 * @param |
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127 * @return foreground color. |
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128 */ |
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129 TGfxColor ForegroundColor(); |
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130 |
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131 /** |
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132 * Get the paint setting. |
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133 * |
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134 * @since 1.0 |
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135 * @param |
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136 * @return paint. |
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137 */ |
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138 MGfxPaint* Paint(); |
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139 |
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140 /** |
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141 * Get the rendering hints setting. |
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142 * |
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143 * @since 1.0 |
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144 * @param |
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145 * @return rendering hints. |
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146 */ |
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147 TGfxRenderingHints* RenderingHints(); |
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148 |
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149 /** |
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150 * Get the stroke setting. |
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151 * |
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152 * @since 1.0 |
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153 * @param |
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154 * @return stroke. |
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155 */ |
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156 TGfxStroke Stroke(); |
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157 |
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158 /** |
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159 * Get the boundary setting. |
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160 * |
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161 * @since 1.0 |
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162 * @param |
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163 * @return boundary. |
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164 */ |
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165 TSize DeviceBounds(); |
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166 /** |
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167 * Get the font setting. |
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168 * |
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169 * @since 1.0 |
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170 * @param |
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171 * @return font. |
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172 */ |
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173 |
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174 CFont* Font(); |
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175 |
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176 |
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177 /** |
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178 * Set the foreground color. |
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179 * |
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180 * @since 1.0 |
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181 * @param aColor : foreground color |
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182 * @return |
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183 */ |
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184 void SetForegroundColor( const TGfxColor& aColor ); |
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185 |
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186 /** |
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187 * Set the background color. |
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188 * |
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189 * @since 1.0 |
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190 * @param aColor : background color |
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191 * @return |
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192 */ |
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193 void SetBackgroundColor( const TGfxColor& aColor ); |
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194 |
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195 |
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196 /** |
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197 * Set the stroke-width. |
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198 * |
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199 * @since 3.2 |
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200 * @param aWidth : stroke-width |
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201 * @return none. |
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202 */ |
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203 void SetStrokeWidth( const TFloatFixPt& aWidth ); |
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204 |
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205 |
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206 /** |
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207 * Set the paint info. |
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208 * |
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209 * @since 1.0 |
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210 * @param aPaint : paint info |
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211 * @return |
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212 */ |
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213 void SetPaint( MGfxPaint* aPaint ); |
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214 |
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215 /** |
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216 * Set the stroke info. |
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217 * |
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218 * @since 1.0 |
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219 * @param aStroke : stroke info |
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220 * @return |
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221 */ |
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222 void SetStroke( TGfxStroke aStroke ); |
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223 |
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224 /** |
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225 * Set the rendering hints. |
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226 * |
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227 * @since 1.0 |
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228 * @param aRenderingHints : rendering hints |
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229 * @return |
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230 */ |
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231 void SetRenderingHints( const TGfxRenderingHints& aRenderingHints ); |
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232 |
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233 /** |
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234 * Set the transform info. |
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235 * |
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236 * @since 1.0 |
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237 * @param aTransform : transform info |
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238 * @return |
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239 */ |
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240 void SetTransform( const TGfxAffineTransform& aTransform ); |
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241 |
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242 /** |
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243 * Set the clipping info. |
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244 * |
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245 * @since 1.0 |
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246 * @param aClip : clipping rectangle |
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247 * @return |
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248 */ |
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249 void SetClip( const TGfxRectangle2D& aClip ); |
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250 |
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251 /** |
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252 * Set the font. |
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253 * |
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254 * @since 1.0 |
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255 * @param aFont : font |
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256 * @return |
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257 */ |
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258 |
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259 void SetFont( const CFont* aFont ); |
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260 |
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261 /** |
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262 * Set the dash array info. |
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263 * |
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264 * @since 1.0 |
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265 * @param aArray : array of points |
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266 * @param aOffset : offset point |
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267 * @return |
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268 */ |
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269 void SetDashArrayL( CArrayFix<TFloatFixPt>* aArray); |
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270 void SetDashOffset( TFloatFixPt aDashOffset ) ; |
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271 /** |
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272 * Set the font size. |
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273 * |
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274 * @since 1.0 |
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275 * @param aFontSize : font size |
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276 * @return |
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277 */ |
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278 void SetFontSize( const TFloatFixPt aFontSize ); |
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279 |
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280 /** |
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281 * Set the winding rule. |
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282 * |
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283 * @since 1.0 |
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284 * @param aRule : winding rule |
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285 * @return |
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286 */ |
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287 void SetWindingRule( TGfxWindingRule aRule ); |
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288 |
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289 /** |
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290 * Set the font weight. |
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291 * |
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292 * @since 1.0 |
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293 * @param aFontWeight : font weight value |
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294 * @return |
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295 */ |
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296 void SetFontWeight( const TInt32 aFontWeight ); |
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297 |
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298 /** |
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299 * Set the font style. |
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300 * |
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301 * @since 1.0 |
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302 * @param aFontStyle : font style |
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303 * @return |
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304 */ |
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305 void SetFontStyle( const TInt32 aFontStyle ); |
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306 |
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307 /** |
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308 * Set the font family. |
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309 * |
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310 * @since 1.0 |
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311 * @param aFamilies : font family names |
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312 * @return |
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313 */ |
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314 void SetFontFamily( CDesCArrayFlat* aFamilies ); |
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315 |
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316 /** |
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317 * Set the text anchor |
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318 * |
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319 * @since 1.0 |
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320 * @param aTextAnchor : text anchor value |
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321 * @return |
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322 */ |
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323 void SetTextanchor( const TInt32 aTextAnchor ); |
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324 |
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325 /** |
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326 * Set the text decoration |
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327 * |
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328 * @since 1.0 |
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329 * @param aTextDecoration : text decoration value |
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330 * @return |
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331 */ |
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332 void SetTextDecoration( const TInt32 aTextDecoration ); |
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333 |
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334 /** |
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335 * Set the anti-alias mode |
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336 * |
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337 * @since 1.0 |
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338 * @param aTextDecoration : anti-alias mode value |
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339 * @return |
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340 */ |
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341 void SetAntialiasingMode( const TInt32 aAntialiasingEnable ); |
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342 |
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343 /** |
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344 * This method copies the internal RGBA8888 framebuffer to CfbsBitmap that |
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345 * is specified in constructor. The CfbsBitmap could be 4k color (RGB0444), |
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346 * 64k color (RGB565), or 16M color (RGB888). |
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347 * |
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348 * @since |
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349 * @param |
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350 * @return |
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351 */ |
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352 void UpdateFramebufferL( CFbsBitmap* aBitmap, CFbsBitmap* aMask ); |
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353 |
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354 void UpdateFramebufferL( CFbsBitmap* aBitmap, CFbsBitmap* aMask,TSize BitmapSize,TDisplayMode aBitmapDspMode,TDisplayMode aMaskDspMode ); |
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355 /** |
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356 * Blend aFrameBuffer with background buffer using the opacity value |
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357 * |
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358 * @since 1.0 |
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359 * @param aFrameBuffer: Buffer to be blended with background |
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360 * aOpacity: opacity value (0<=aOpacity<=1.0) |
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361 * @return |
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362 */ |
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363 void BlendWithBackground(TUint32* aFrameBuffer, TReal32 aOpacity); |
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364 |
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365 /** |
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366 * Generate mask |
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367 * |
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368 * @since |
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369 * @param aMask: pointer to the mask |
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370 * @return |
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371 */ |
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372 void GenerateMask(CFbsBitmap* aMask); |
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373 |
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374 /** |
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375 * Set the fill opacity value |
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376 * |
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377 * @since 1.0 |
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378 * @param aFillOpacity : opacity value (0<=aFillOpacity<=1.0) |
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379 * @return |
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380 */ |
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381 void SetFillOpacity(TFloatFixPt aFillOpacity); |
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382 |
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383 /** |
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384 * Set the stroke opacity value |
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385 * |
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386 * @since 1.0 |
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387 * @param aStrokeOpacity : opacity value (0<=aStrokeOpacity<=1.0) |
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388 * @return |
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389 */ |
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390 void SetStrokeOpacity(TFloatFixPt aStrokeOpacity); |
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391 |
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392 /** |
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393 * Set the flag to do or ignore dithering. |
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394 * |
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395 * @since 1.0 |
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396 * @param aDoDithering : TRUE or False |
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397 * @return |
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398 */ |
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399 void SetDoDithering( TBool aDoDithering ); |
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400 |
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401 /** |
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402 * Request to change the buffer size. |
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403 * |
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404 * @since 1.0 |
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405 * @param aSize : size of new buffer |
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406 * @return |
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407 */ |
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408 void ChangeBufferSizeL( const TSize aBufferSize ); |
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409 |
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410 // Group opacity methods |
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411 void BindToImageL(); |
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412 void UnbindFromImageL( TReal32 aOpacity ); |
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413 |
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414 void BindToMediaImageL(TInt aWidth, TInt aHeigth); |
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415 void UnbindFromMediaImageL(const TGfxAffineTransform& aAffineTransform,TReal32 aOpacity,TInt aWidth, TInt aHeight, TInt aDraw ); |
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416 void SetClipMediaElement( TSize aSize ); |
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417 void GetMatrix(TReal32 * m); |
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418 void SetBitmapHeader(const TDesC* aHeaderData); |
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419 /** |
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420 * Get the NVG-TLV data |
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421 * |
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422 * @since 1.0 |
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423 * @return : pointer to the NVG-TLV data |
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424 */ |
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425 const TPtrC8 TLVEncodedData() const; |
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426 private: |
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427 |
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428 /** |
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429 * Constructor |
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430 */ |
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431 CGfx2dGcOpenVG( TBool aIsMainContext ); |
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432 /** |
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433 |
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434 /** |
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435 * Constructor |
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436 */ |
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437 CGfx2dGcOpenVG(); |
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438 |
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439 /** |
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440 * Two-phase constructor |
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441 */ |
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442 void ConstructL(const TSize aBufferSize, TFontSpec& aFontSpec, CSvgBitmapFontProvider* aSvgBitmapFontProvider); |
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443 |
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444 /** |
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445 |
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446 * Constructor NGA with the renderer selector parameter |
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447 |
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448 */ |
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449 |
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450 void ConstructL(const TSize aBufferSize, TFontSpec& aFontSpec, CSvgBitmapFontProvider* aSvgBitmapFontProvider,SVGRendererId aRendererType); |
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451 |
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452 /** |
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453 * Perform the drawing operations of the given shape. |
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454 * |
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455 * @since 1.0 |
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456 * @param aShape : shape to draw |
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457 * @return |
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458 */ |
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459 void DoDrawL( MGfxShape* aShape ); |
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460 |
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461 void PseudoDoDrawL( MGfxShape* aShape ); |
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462 |
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463 /** |
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464 * Destroy the OpenVG context and delete the 32-bit intermediate color buffer |
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465 * |
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466 * @since 1.0 |
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467 * @return |
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468 */ |
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469 void DestroyContext(); |
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470 /** |
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471 * Converts OpenVG Errors into Symbian error codes |
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472 * |
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473 * @since |
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474 * @return TInt |
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475 */ |
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476 TInt OpenVGErrorToSymbianError( TInt aError ); |
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477 |
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478 void ApplyTransform( TGfxAffineTransform& aAffineTransform ); |
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479 void ApplyTransformMediaElement(const TGfxAffineTransform& aAffineTransform,TSize& aSize ); |
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480 |
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481 VGbitfield SetFillStroke(VGPaint aFillPaint, VGPaint aStrokePaint, TGfxRectangle2D& bBox); |
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482 |
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483 VGImage CreateVGImage( void* aBuffer, TSize aSize, TDisplayMode aDisplayMode, TBool aPreMultiplied = ETrue ); |
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484 |
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485 // This is for work-around for OpenVG to simulate multiple contexts |
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486 void SetupContextL(); |
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487 void Flush(); |
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488 /** |
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489 * Sets the Paint,Stroke and Path handle back to VG_INVALID_HANDLE |
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490 * |
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491 * @since |
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492 * @return void |
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493 */ |
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494 void ResetContextHandle(); |
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495 //To find the bounding box for system text.. |
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496 TGfxRectangle2D GetBBoxForSystemText( const TDesC& aText, |
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497 TFloatFixPt aX, |
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498 TFloatFixPt aY ); |
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499 |
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500 TGfxRectangle2D GetTRect(TGfxPoint2D lTransTopLeftCorner, |
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501 TGfxPoint2D lTransTopRightCorner, |
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502 TGfxPoint2D lTransBottomLeftCorner, |
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503 TGfxPoint2D lTransBottomRightCorner); |
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504 |
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505 // Method to handle cleanup (turning off settings, such as dasharray) for efficiency. |
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506 void PostDraw(); |
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507 |
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508 private: |
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509 // 32-bit buffer for OpenVG to draw to |
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510 // Color conversion/copy to Symbian bitmap is needed as final step |
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511 TSize iColorBufferSize; |
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512 |
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513 TGfxRectangle2D iClip; |
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514 MGfxPaint* iFillColor; |
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515 TFloatFixPt iFillOpacity; |
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516 TFloatFixPt iScale; |
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517 TGfxStroke iStroke; |
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518 TGfxAffineTransform iTransform; |
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519 TGfxColor iStrokeColor; |
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520 TFloatFixPt iStrokeOpacity; |
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521 TGfxColor iBackgroundColor; |
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522 CFont* iFont; |
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523 CArrayFix<VGfloat>* iDashArray; |
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524 TFloatFixPt iDashOffset; |
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525 TFloatFixPt iFontSize; |
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526 TInt32 iFontWeight; |
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527 TInt32 iFontStyle; |
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528 CDesCArrayFlat* iFamilies; |
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529 TInt32 iTextAnchor; |
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530 TInt32 iTextDecoration; |
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531 TGfxRendererInfoP iRenderInfo; |
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532 |
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533 // Flag used for using CFbsBitmap::DataAddress() instead of allocating |
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534 // TInt32 array to draw shapes. |
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535 TFontSpec iFontSpec; |
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536 //OpenVG stuff |
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537 |
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538 TDisplayMode iDisplayMode; |
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539 TBool iGraphicsContextCreated; |
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540 TBool iIsMainContext; |
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541 |
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542 VGPaint iFillPaint; |
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543 VGPaint iStrokePaint; |
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544 VGPath iPath; |
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545 |
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546 RArray<VGImage> iGroupOpacityImages; |
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547 RPointerArray<TUint32> iGroupOpacityBuffers; |
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548 |
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549 VGubyte* iPathSegmentTypes; |
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550 TInt iPathSegmentTypeCount; |
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551 TGfxRectangle2D iClipMain; |
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552 TSize iColorBufferSizeMain; |
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553 TInt32 iRenderQuality; |
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554 |
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555 CVGRenderer * iVgRenderer; |
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556 |
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557 CVGSurface * iVgSurface; |
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558 |
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559 SVGRendererId iCurrentRendererType; |
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560 }; |
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561 |
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562 #endif // GFX2DGCOPENVG_H |