1 /*------------------------------------------------------------------------ |
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2 * |
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3 * OpenVG 1.1 Reference Implementation |
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4 * ----------------------------------- |
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5 * |
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6 * Copyright (c) 2007 The Khronos Group Inc. |
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7 * |
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8 * Permission is hereby granted, free of charge, to any person obtaining a |
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9 * copy of this software and /or associated documentation files |
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10 * (the "Materials "), to deal in the Materials without restriction, |
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11 * including without limitation the rights to use, copy, modify, merge, |
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12 * publish, distribute, sublicense, and/or sell copies of the Materials, |
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13 * and to permit persons to whom the Materials are furnished to do so, |
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14 * subject to the following conditions: |
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15 * |
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16 * The above copyright notice and this permission notice shall be included |
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17 * in all copies or substantial portions of the Materials. |
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18 * |
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19 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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22 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
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23 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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24 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR |
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25 * THE USE OR OTHER DEALINGS IN THE MATERIALS. |
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26 * |
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27 *//** |
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28 * \file |
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29 * \brief Implementation of VGContext functions. |
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30 * \note |
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31 *//*-------------------------------------------------------------------*/ |
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32 |
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33 #include "riContext.h" |
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34 |
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35 namespace OpenVGRI |
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36 { |
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37 |
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38 /*-------------------------------------------------------------------*//*! |
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39 * \brief VGContext constructor. |
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40 * \param |
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41 * \return |
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42 * \note |
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43 *//*-------------------------------------------------------------------*/ |
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44 |
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45 VGContext::VGContext(VGContext* shareContext) : |
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46 // Mode settings |
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47 m_matrixMode(VG_MATRIX_PATH_USER_TO_SURFACE), |
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48 m_fillRule(VG_EVEN_ODD), |
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49 m_imageQuality(VG_IMAGE_QUALITY_FASTER), |
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50 m_renderingQuality(VG_RENDERING_QUALITY_BETTER), |
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51 m_blendMode(VG_BLEND_SRC_OVER), |
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52 m_imageMode(VG_DRAW_IMAGE_NORMAL), |
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53 |
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54 // Scissor rectangles |
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55 m_scissor(), |
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56 |
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57 // Stroke parameters |
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58 m_strokeLineWidth(1.0f), |
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59 m_inputStrokeLineWidth(1.0f), |
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60 m_strokeCapStyle(VG_CAP_BUTT), |
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61 m_strokeJoinStyle(VG_JOIN_MITER), |
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62 m_strokeMiterLimit(4.0f), |
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63 m_inputStrokeMiterLimit(4.0f), |
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64 m_strokeDashPattern(), |
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65 m_inputStrokeDashPattern(), |
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66 m_strokeDashPhase(0.0f), |
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67 m_inputStrokeDashPhase(0.0f), |
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68 m_strokeDashPhaseReset(VG_FALSE), |
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69 |
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70 // Edge fill color for vgConvolve and pattern paint |
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71 m_tileFillColor(0,0,0,0, Color::sRGBA), |
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72 m_inputTileFillColor(0,0,0,0, Color::sRGBA), |
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73 |
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74 // Color for vgClear |
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75 m_clearColor(0,0,0,0, Color::sRGBA), |
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76 m_inputClearColor(0,0,0,0, Color::sRGBA), |
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77 |
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78 m_glyphOrigin(0.0f, 0.0f), |
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79 m_inputGlyphOrigin(0.0f, 0.0f), |
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80 |
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81 m_masking(VG_FALSE), |
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82 m_scissoring(VG_FALSE), |
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83 |
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84 m_pixelLayout(VG_PIXEL_LAYOUT_UNKNOWN), |
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85 |
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86 m_filterFormatLinear(VG_FALSE), |
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87 m_filterFormatPremultiplied(VG_FALSE), |
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88 m_filterChannelMask(VG_RED|VG_GREEN|VG_BLUE|VG_ALPHA), |
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89 |
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90 // Matrices |
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91 m_pathUserToSurface(), |
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92 m_imageUserToSurface(), |
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93 m_glyphUserToSurface(), |
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94 m_fillPaintToUser(), |
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95 m_strokePaintToUser(), |
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96 |
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97 m_fillPaint(VG_INVALID_HANDLE), |
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98 m_strokePaint(VG_INVALID_HANDLE), |
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99 |
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100 m_colorTransform(VG_FALSE), |
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101 m_colorTransformValues(), |
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102 m_inputColorTransformValues(), |
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103 |
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104 m_error(VG_NO_ERROR), |
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105 |
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106 m_imageManager(NULL), |
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107 m_pathManager(NULL), |
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108 m_paintManager(NULL), |
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109 m_fontManager(NULL), |
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110 m_maskLayerManager(NULL), |
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111 |
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112 m_eglDrawable(NULL) |
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113 { |
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114 if(shareContext) |
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115 { |
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116 m_imageManager = shareContext->m_imageManager; |
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117 m_pathManager = shareContext->m_pathManager; |
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118 m_paintManager = shareContext->m_paintManager; |
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119 m_fontManager = shareContext->m_fontManager; |
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120 m_maskLayerManager = shareContext->m_maskLayerManager; |
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121 } |
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122 else |
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123 { |
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124 try |
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125 { |
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126 m_imageManager = RI_NEW(OpenVGRI::ResourceManager<Image>, ()); //throws bad_alloc |
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127 m_pathManager = RI_NEW(OpenVGRI::ResourceManager<Path>, ()); //throws bad_alloc |
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128 m_paintManager = RI_NEW(OpenVGRI::ResourceManager<Paint>, ()); //throws bad_alloc |
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129 m_fontManager = RI_NEW(OpenVGRI::ResourceManager<Font>, ()); //throws bad_alloc |
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130 m_maskLayerManager = RI_NEW(OpenVGRI::ResourceManager<Surface>, ()); //throws bad_alloc |
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131 } |
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132 catch(std::bad_alloc) |
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133 { |
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134 RI_DELETE(m_imageManager); |
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135 RI_DELETE(m_pathManager); |
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136 RI_DELETE(m_paintManager); |
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137 RI_DELETE(m_fontManager); |
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138 RI_DELETE(m_maskLayerManager); |
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139 throw; |
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140 } |
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141 } |
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142 RI_ASSERT(m_imageManager); |
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143 RI_ASSERT(m_pathManager); |
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144 RI_ASSERT(m_paintManager); |
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145 RI_ASSERT(m_fontManager); |
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146 RI_ASSERT(m_maskLayerManager); |
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147 m_imageManager->addReference(); |
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148 m_pathManager->addReference(); |
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149 m_paintManager->addReference(); |
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150 m_fontManager->addReference(); |
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151 m_maskLayerManager->addReference(); |
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152 |
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153 m_inputColorTransformValues[0] = 1.0f; |
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154 m_inputColorTransformValues[1] = 1.0f; |
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155 m_inputColorTransformValues[2] = 1.0f; |
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156 m_inputColorTransformValues[3] = 1.0f; |
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157 m_inputColorTransformValues[4] = 0.0f; |
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158 m_inputColorTransformValues[5] = 0.0f; |
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159 m_inputColorTransformValues[6] = 0.0f; |
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160 m_inputColorTransformValues[7] = 0.0f; |
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161 m_colorTransformValues[0] = 1.0f; |
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162 m_colorTransformValues[1] = 1.0f; |
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163 m_colorTransformValues[2] = 1.0f; |
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164 m_colorTransformValues[3] = 1.0f; |
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165 m_colorTransformValues[4] = 0.0f; |
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166 m_colorTransformValues[5] = 0.0f; |
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167 m_colorTransformValues[6] = 0.0f; |
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168 m_colorTransformValues[7] = 0.0f; |
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169 } |
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170 |
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171 /*-------------------------------------------------------------------*//*! |
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172 * \brief VGContext destructor. |
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173 * \param |
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174 * \return |
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175 * \note |
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176 *//*-------------------------------------------------------------------*/ |
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177 |
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178 VGContext::~VGContext() |
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179 { |
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180 releasePaint(VG_FILL_PATH | VG_STROKE_PATH); |
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181 setDefaultDrawable(NULL); |
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182 |
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183 //destroy own images, paths and paints |
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184 while(Image* i = m_imageManager->getFirstResource(this)) |
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185 m_imageManager->removeResource(i); |
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186 while(Path* p = m_pathManager->getFirstResource(this)) |
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187 m_pathManager->removeResource(p); |
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188 while(Paint* t = m_paintManager->getFirstResource(this)) |
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189 m_paintManager->removeResource(t); |
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190 while(Font* t = m_fontManager->getFirstResource(this)) |
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191 m_fontManager->removeResource(t); |
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192 while(Surface* t = m_maskLayerManager->getFirstResource(this)) |
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193 m_maskLayerManager->removeResource(t); |
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194 |
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195 //decrease the reference count of resource managers |
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196 if(!m_imageManager->removeReference()) |
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197 RI_DELETE(m_imageManager); |
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198 if(!m_pathManager->removeReference()) |
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199 RI_DELETE(m_pathManager); |
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200 if(!m_paintManager->removeReference()) |
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201 RI_DELETE(m_paintManager); |
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202 if(!m_fontManager->removeReference()) |
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203 RI_DELETE(m_fontManager); |
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204 if(!m_maskLayerManager->removeReference()) |
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205 RI_DELETE(m_maskLayerManager); |
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206 } |
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207 |
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208 /*-------------------------------------------------------------------*//*! |
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209 * \brief Sets new default drawable. |
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210 * \param drawable New drawable or NULL when context is unbound |
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211 * \return |
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212 * \note |
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213 *//*-------------------------------------------------------------------*/ |
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214 |
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215 void VGContext::setDefaultDrawable(Drawable* drawable) |
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216 { |
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217 if(m_eglDrawable) |
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218 { |
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219 if(!m_eglDrawable->removeReference()) |
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220 RI_DELETE(m_eglDrawable); |
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221 } |
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222 m_eglDrawable = drawable; |
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223 if(m_eglDrawable) |
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224 { |
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225 m_eglDrawable->addReference(); |
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226 } |
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227 } |
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228 |
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229 /*-------------------------------------------------------------------*//*! |
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230 * \brief Returns true if the given image is generated through any |
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231 * context that is shared with this one. |
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232 * \param |
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233 * \return |
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234 * \note |
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235 *//*-------------------------------------------------------------------*/ |
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236 |
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237 bool VGContext::isValidImage(VGImage image) |
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238 { |
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239 return m_imageManager->isValid((Image*)image); |
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240 } |
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241 |
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242 /*-------------------------------------------------------------------*//*! |
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243 * \brief Returns true if the given path is generated through any |
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244 * context that is shared with this one. |
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245 * \param |
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246 * \return |
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247 * \note |
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248 *//*-------------------------------------------------------------------*/ |
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249 |
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250 bool VGContext::isValidPath(VGPath path) |
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251 { |
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252 return m_pathManager->isValid((Path*)path); |
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253 } |
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254 |
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255 /*-------------------------------------------------------------------*//*! |
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256 * \brief Returns true if the given paint is generated through any |
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257 * context that is shared with this one. |
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258 * \param |
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259 * \return |
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260 * \note |
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261 *//*-------------------------------------------------------------------*/ |
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262 |
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263 bool VGContext::isValidPaint(VGPaint paint) |
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264 { |
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265 return m_paintManager->isValid((Paint*)paint); |
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266 } |
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267 |
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268 /*-------------------------------------------------------------------*//*! |
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269 * \brief Returns true if the given font is generated through any |
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270 * context that is shared with this one. |
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271 * \param |
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272 * \return |
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273 * \note |
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274 *//*-------------------------------------------------------------------*/ |
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275 |
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276 bool VGContext::isValidFont(VGFont font) |
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277 { |
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278 return m_fontManager->isValid((Font*)font); |
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279 } |
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280 |
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281 /*-------------------------------------------------------------------*//*! |
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282 * \brief Returns true if the given mask layer is generated through any |
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283 * context that is shared with this one. |
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284 * \param |
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285 * \return |
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286 * \note |
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287 *//*-------------------------------------------------------------------*/ |
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288 |
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289 bool VGContext::isValidMaskLayer(VGMaskLayer layer) |
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290 { |
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291 return m_maskLayerManager->isValid((Surface*)layer); |
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292 } |
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293 |
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294 /*-------------------------------------------------------------------*//*! |
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295 * \brief Releases the given paint objects of the context. |
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296 * \param |
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297 * \return |
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298 * \note |
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299 *//*-------------------------------------------------------------------*/ |
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300 |
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301 void VGContext::releasePaint(VGbitfield paintModes) |
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302 { |
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303 if(paintModes & VG_FILL_PATH) |
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304 { |
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305 //release previous paint |
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306 Paint* prev = (Paint*)m_fillPaint; |
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307 if(prev) |
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308 { |
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309 if(!prev->removeReference()) |
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310 RI_DELETE(prev); |
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311 } |
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312 m_fillPaint = VG_INVALID_HANDLE; |
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313 } |
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314 if(paintModes & VG_STROKE_PATH) |
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315 { |
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316 //release previous paint |
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317 Paint* prev = (Paint*)m_strokePaint; |
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318 if(prev) |
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319 { |
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320 if(!prev->removeReference()) |
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321 RI_DELETE(prev); |
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322 } |
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323 m_strokePaint = VG_INVALID_HANDLE; |
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324 } |
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325 } |
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326 |
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327 //============================================================================================== |
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328 |
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329 } //namespace OpenVGRI |
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