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1 #ifndef __RICONTEXT_H |
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2 #define __RICONTEXT_H |
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3 |
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4 /*------------------------------------------------------------------------ |
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5 * |
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6 * OpenVG 1.1 Reference Implementation |
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7 * ----------------------------------- |
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8 * |
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9 * Copyright (c) 2007 The Khronos Group Inc. |
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10 * Portions copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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11 * |
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12 * Permission is hereby granted, free of charge, to any person obtaining a |
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13 * copy of this software and /or associated documentation files |
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14 * (the "Materials "), to deal in the Materials without restriction, |
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15 * including without limitation the rights to use, copy, modify, merge, |
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16 * publish, distribute, sublicense, and/or sell copies of the Materials, |
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17 * and to permit persons to whom the Materials are furnished to do so, |
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18 * subject to the following conditions: |
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19 * |
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20 * The above copyright notice and this permission notice shall be included |
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21 * in all copies or substantial portions of the Materials. |
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22 * |
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23 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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26 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
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27 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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28 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR |
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29 * THE USE OR OTHER DEALINGS IN THE MATERIALS. |
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30 * |
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31 *//** |
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32 * \file |
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33 * \brief VGContext class. Used for storing OpenVG state. |
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34 * \note |
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35 *//*-------------------------------------------------------------------*/ |
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36 |
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37 #ifndef OPENVG_H |
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38 #include "openvg.h" |
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39 #endif |
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40 |
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41 #ifndef __RIDEFS_H |
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42 #include "riDefs.h" |
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43 #endif |
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44 |
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45 #ifndef __RIMATH_H |
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46 #include "riMath.h" |
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47 #endif |
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48 |
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49 #ifndef __RIIMAGE_H |
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50 #include "riImage.h" |
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51 #endif |
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52 |
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53 #ifndef __RIPATH_H |
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54 #include "riPath.h" |
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55 #endif |
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56 |
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57 #ifndef __RIFONT_H |
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58 #include "riFont.h" |
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59 #endif |
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60 |
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61 #ifndef __RIARRAY_H |
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62 #include "riArray.h" |
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63 #endif |
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64 |
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65 #ifndef __SFDYNAMICBLITTER_H |
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66 # include "sfDynamicBlitter.h" |
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67 #endif |
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68 |
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69 //============================================================================================== |
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70 |
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71 namespace OpenVGRI |
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72 { |
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73 |
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74 class VGContext; |
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75 |
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76 /*-------------------------------------------------------------------*//*! |
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77 * \brief A list of resources (Images, Paths, or Paints) shared by a |
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78 * set of contexts. |
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79 * \param |
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80 * \return |
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81 * \note |
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82 *//*-------------------------------------------------------------------*/ |
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83 |
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84 template <class Resource> class ResourceManager |
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85 { |
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86 public: |
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87 ResourceManager() : |
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88 m_referenceCount(0), |
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89 m_resources() |
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90 { |
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91 } |
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92 |
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93 ~ResourceManager() |
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94 { |
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95 RI_ASSERT(m_referenceCount == 0); |
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96 RI_ASSERT(m_resources.size() == 0); |
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97 } |
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98 |
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99 void addReference() |
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100 { |
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101 m_referenceCount++; |
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102 } |
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103 |
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104 int removeReference() |
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105 { |
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106 m_referenceCount--; |
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107 RI_ASSERT(m_referenceCount >= 0); |
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108 return m_referenceCount; |
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109 } |
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110 |
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111 void addResource(Resource* resource, VGContext* context) |
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112 { |
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113 Entry r; |
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114 r.resource = resource; |
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115 r.context = context; |
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116 m_resources.push_back(r); //throws bad_alloc |
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117 resource->addReference(); |
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118 } |
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119 |
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120 void removeResource(Resource* resource) |
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121 { |
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122 if(!resource->removeReference()) |
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123 RI_DELETE(resource); |
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124 |
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125 int i=0; |
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126 bool found = false; |
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127 for(;i<m_resources.size();i++) |
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128 { |
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129 if(m_resources[i].resource == resource) |
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130 { |
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131 found = true; |
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132 break; |
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133 } |
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134 } |
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135 RI_ASSERT(found); |
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136 |
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137 for(;i<m_resources.size()-1;i++) |
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138 { |
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139 m_resources[i] = m_resources[i+1]; |
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140 } |
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141 m_resources.resize(m_resources.size()-1); |
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142 } |
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143 |
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144 bool isValid(Resource* resource) |
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145 { |
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146 for(int i=0;i<m_resources.size();i++) |
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147 { |
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148 if(m_resources[i].resource == resource) |
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149 return true; |
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150 } |
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151 return false; |
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152 } |
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153 |
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154 Resource* getFirstResource(VGContext* context) |
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155 { |
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156 for(int i=0;i<m_resources.size();i++) |
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157 { |
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158 if(m_resources[i].context == context) |
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159 return m_resources[i].resource; |
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160 } |
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161 return NULL; |
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162 } |
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163 |
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164 private: |
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165 ResourceManager(const ResourceManager&); |
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166 ResourceManager operator=(const ResourceManager&); |
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167 |
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168 struct Entry |
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169 { |
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170 Resource* resource; |
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171 VGContext* context; |
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172 }; |
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173 |
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174 int m_referenceCount; |
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175 Array<Entry> m_resources; |
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176 }; |
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177 |
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178 /*-------------------------------------------------------------------*//*! |
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179 * \brief |
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180 * \param |
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181 * \return |
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182 * \note |
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183 *//*-------------------------------------------------------------------*/ |
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184 |
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185 class VGContext |
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186 { |
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187 public: |
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188 VGContext(VGContext* shareContext); //throws bad_alloc |
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189 ~VGContext(); |
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190 |
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191 void setDefaultDrawable(Drawable* drawable); //called from EGL |
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192 Drawable* getCurrentDrawable() { return m_eglDrawable; } |
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193 DynamicBlitter& getBlitter() { return m_blitter; } |
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194 |
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195 bool isValidImage(VGImage image); |
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196 bool isValidPath(VGPath path); |
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197 bool isValidPaint(VGPaint paint); |
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198 bool isValidFont(VGFont font); |
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199 bool isValidMaskLayer(VGMaskLayer layer); |
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200 |
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201 void releasePaint(VGbitfield paintModes); |
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202 |
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203 void setError(VGErrorCode error) { if(m_error == VG_NO_ERROR) m_error = error; } |
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204 |
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205 // Mode settings |
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206 VGMatrixMode m_matrixMode; |
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207 VGFillRule m_fillRule; |
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208 VGImageQuality m_imageQuality; |
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209 VGRenderingQuality m_renderingQuality; |
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210 VGBlendMode m_blendMode; |
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211 VGImageMode m_imageMode; |
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212 |
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213 // Scissor rectangles |
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214 Array<Rectangle> m_scissor; |
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215 |
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216 // Stroke parameters |
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217 RIfloat m_strokeLineWidth; |
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218 RIfloat m_inputStrokeLineWidth; |
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219 VGCapStyle m_strokeCapStyle; |
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220 VGJoinStyle m_strokeJoinStyle; |
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221 RIfloat m_strokeMiterLimit; |
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222 RIfloat m_inputStrokeMiterLimit; |
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223 Array<RIfloat> m_strokeDashPattern; |
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224 Array<RIfloat> m_inputStrokeDashPattern; |
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225 RIfloat m_strokeDashPhase; |
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226 RIfloat m_inputStrokeDashPhase; |
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227 VGboolean m_strokeDashPhaseReset; |
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228 |
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229 // Edge fill color for vgConvolve and pattern paint |
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230 Color m_tileFillColor; |
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231 Color m_inputTileFillColor; |
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232 |
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233 // Color for vgClear |
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234 Color m_clearColor; |
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235 Color m_inputClearColor; |
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236 |
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237 Vector2 m_glyphOrigin; |
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238 Vector2 m_inputGlyphOrigin; |
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239 |
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240 VGboolean m_masking; |
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241 VGboolean m_scissoring; |
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242 |
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243 VGPixelLayout m_pixelLayout; |
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244 |
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245 VGboolean m_filterFormatLinear; |
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246 VGboolean m_filterFormatPremultiplied; |
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247 VGbitfield m_filterChannelMask; |
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248 |
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249 // Matrices |
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250 Matrix3x3 m_pathUserToSurface; |
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251 Matrix3x3 m_imageUserToSurface; |
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252 Matrix3x3 m_glyphUserToSurface; |
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253 Matrix3x3 m_fillPaintToUser; |
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254 Matrix3x3 m_strokePaintToUser; |
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255 |
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256 VGPaint m_fillPaint; |
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257 VGPaint m_strokePaint; |
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258 |
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259 VGboolean m_colorTransform; |
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260 RIfloat m_colorTransformValues[8]; |
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261 RIuint32 m_iColorTransformValues[8]; |
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262 RIfloat m_inputColorTransformValues[8]; |
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263 |
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264 VGErrorCode m_error; |
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265 |
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266 ResourceManager<Image>* m_imageManager; |
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267 ResourceManager<Path>* m_pathManager; |
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268 ResourceManager<Paint>* m_paintManager; |
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269 ResourceManager<Font>* m_fontManager; |
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270 ResourceManager<Surface>* m_maskLayerManager; |
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271 |
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272 Rasterizer m_rasterizer; |
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273 |
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274 PixelPipe m_pixelPipe; |
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275 DynamicBlitter m_blitter; |
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276 |
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277 private: |
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278 Drawable* m_eglDrawable; |
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279 |
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280 VGContext(const VGContext&); //!< Not allowed. |
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281 void operator=(const VGContext&); //!< Not allowed. |
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282 }; |
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283 |
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284 //============================================================================================== |
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285 |
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286 } //namespace OpenVGRI |
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287 |
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288 //============================================================================================== |
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289 |
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290 #endif /* __RICONTEXT_H */ |