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1 /* |
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2 * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package sun.java2d.opengl; |
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27 |
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28 import java.awt.AlphaComposite; |
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29 import java.awt.Composite; |
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30 import java.awt.GraphicsEnvironment; |
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31 import java.awt.Rectangle; |
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32 import java.awt.Transparency; |
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33 import java.awt.image.ColorModel; |
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34 import java.awt.image.Raster; |
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35 import sun.awt.SunHints; |
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36 import sun.awt.image.PixelConverter; |
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37 import sun.java2d.pipe.hw.AccelSurface; |
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38 import sun.java2d.SunGraphics2D; |
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39 import sun.java2d.SurfaceData; |
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40 import sun.java2d.SurfaceDataProxy; |
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41 import sun.java2d.loops.CompositeType; |
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42 import sun.java2d.loops.GraphicsPrimitive; |
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43 import sun.java2d.loops.MaskFill; |
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44 import sun.java2d.loops.SurfaceType; |
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45 import sun.java2d.pipe.ParallelogramPipe; |
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46 import sun.java2d.pipe.PixelToParallelogramConverter; |
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47 import sun.java2d.pipe.RenderBuffer; |
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48 import sun.java2d.pipe.TextPipe; |
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49 import static sun.java2d.pipe.BufferedOpCodes.*; |
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50 import static sun.java2d.opengl.OGLContext.OGLContextCaps.*; |
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51 |
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52 /** |
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53 * This class describes an OpenGL "surface", that is, a region of pixels |
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54 * managed via OpenGL. An OGLSurfaceData can be tagged with one of three |
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55 * different SurfaceType objects for the purpose of registering loops, etc. |
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56 * This diagram shows the hierarchy of OGL SurfaceTypes: |
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57 * |
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58 * Any |
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59 * / \ |
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60 * OpenGLSurface OpenGLTexture |
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61 * | |
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62 * OpenGLSurfaceRTT |
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63 * |
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64 * OpenGLSurface |
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65 * This kind of surface can be rendered to using OpenGL APIs. It is also |
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66 * possible to copy an OpenGLSurface to another OpenGLSurface (or to itself). |
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67 * This is typically accomplished by calling MakeContextCurrent(dstSD, srcSD) |
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68 * and then calling glCopyPixels() (although there are other techniques to |
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69 * achieve the same goal). |
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70 * |
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71 * OpenGLTexture |
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72 * This kind of surface cannot be rendered to using OpenGL (in the same sense |
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73 * as in OpenGLSurface). However, it is possible to upload a region of pixels |
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74 * to an OpenGLTexture object via glTexSubImage2D(). One can also copy a |
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75 * surface of type OpenGLTexture to an OpenGLSurface by binding the texture |
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76 * to a quad and then rendering it to the destination surface (this process |
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77 * is known as "texture mapping"). |
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78 * |
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79 * OpenGLSurfaceRTT |
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80 * This kind of surface can be thought of as a sort of hybrid between |
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81 * OpenGLSurface and OpenGLTexture, in that one can render to this kind of |
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82 * surface as if it were of type OpenGLSurface, but the process of copying |
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83 * this kind of surface to another is more like an OpenGLTexture. (Note that |
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84 * "RTT" stands for "render-to-texture".) |
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85 * |
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86 * In addition to these SurfaceType variants, we have also defined some |
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87 * constants that describe in more detail the type of underlying OpenGL |
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88 * surface. This table helps explain the relationships between those |
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89 * "type" constants and their corresponding SurfaceType: |
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90 * |
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91 * OGL Type Corresponding SurfaceType |
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92 * -------- ------------------------- |
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93 * WINDOW OpenGLSurface |
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94 * TEXTURE OpenGLTexture |
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95 * FLIP_BACKBUFFER OpenGLSurface |
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96 * FBOBJECT OpenGLSurfaceRTT |
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97 */ |
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98 public abstract class OGLSurfaceData extends SurfaceData |
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99 implements AccelSurface { |
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100 |
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101 /** |
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102 * OGL-specific surface types |
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103 * |
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104 * @see sun.java2d.pipe.hw.AccelSurface |
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105 */ |
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106 public static final int FBOBJECT = RT_TEXTURE; |
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107 |
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108 /** |
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109 * Pixel formats |
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110 */ |
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111 public static final int PF_INT_ARGB = 0; |
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112 public static final int PF_INT_ARGB_PRE = 1; |
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113 public static final int PF_INT_RGB = 2; |
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114 public static final int PF_INT_RGBX = 3; |
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115 public static final int PF_INT_BGR = 4; |
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116 public static final int PF_INT_BGRX = 5; |
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117 public static final int PF_USHORT_565_RGB = 6; |
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118 public static final int PF_USHORT_555_RGB = 7; |
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119 public static final int PF_USHORT_555_RGBX = 8; |
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120 public static final int PF_BYTE_GRAY = 9; |
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121 public static final int PF_USHORT_GRAY = 10; |
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122 public static final int PF_3BYTE_BGR = 11; |
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123 |
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124 /** |
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125 * SurfaceTypes |
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126 */ |
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127 private static final String DESC_OPENGL_SURFACE = "OpenGL Surface"; |
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128 private static final String DESC_OPENGL_SURFACE_RTT = |
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129 "OpenGL Surface (render-to-texture)"; |
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130 private static final String DESC_OPENGL_TEXTURE = "OpenGL Texture"; |
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131 |
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132 static final SurfaceType OpenGLSurface = |
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133 SurfaceType.Any.deriveSubType(DESC_OPENGL_SURFACE, |
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134 PixelConverter.ArgbPre.instance); |
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135 static final SurfaceType OpenGLSurfaceRTT = |
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136 OpenGLSurface.deriveSubType(DESC_OPENGL_SURFACE_RTT); |
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137 static final SurfaceType OpenGLTexture = |
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138 SurfaceType.Any.deriveSubType(DESC_OPENGL_TEXTURE); |
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139 |
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140 /** This will be true if the fbobject system property has been enabled. */ |
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141 private static boolean isFBObjectEnabled; |
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142 |
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143 /** This will be true if the lcdshader system property has been enabled.*/ |
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144 private static boolean isLCDShaderEnabled; |
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145 |
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146 /** This will be true if the biopshader system property has been enabled.*/ |
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147 private static boolean isBIOpShaderEnabled; |
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148 |
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149 /** This will be true if the gradshader system property has been enabled.*/ |
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150 private static boolean isGradShaderEnabled; |
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151 |
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152 private OGLGraphicsConfig graphicsConfig; |
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153 protected int type; |
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154 // these fields are set from the native code when the surface is |
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155 // initialized |
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156 private int nativeWidth, nativeHeight; |
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157 |
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158 protected static OGLRenderer oglRenderPipe; |
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159 protected static PixelToParallelogramConverter oglTxRenderPipe; |
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160 protected static ParallelogramPipe oglAAPgramPipe; |
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161 protected static OGLTextRenderer oglTextPipe; |
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162 protected static OGLDrawImage oglImagePipe; |
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163 |
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164 protected native boolean initTexture(long pData, |
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165 boolean isOpaque, boolean texNonPow2, |
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166 boolean texRect, |
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167 int width, int height); |
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168 protected native boolean initFBObject(long pData, |
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169 boolean isOpaque, boolean texNonPow2, |
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170 boolean texRect, |
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171 int width, int height); |
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172 protected native boolean initFlipBackbuffer(long pData); |
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173 |
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174 private native int getTextureTarget(long pData); |
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175 private native int getTextureID(long pData); |
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176 |
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177 static { |
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178 if (!GraphicsEnvironment.isHeadless()) { |
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179 // fbobject currently enabled by default; use "false" to disable |
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180 String fbo = java.security.AccessController.doPrivileged( |
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181 new sun.security.action.GetPropertyAction( |
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182 "sun.java2d.opengl.fbobject")); |
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183 isFBObjectEnabled = !"false".equals(fbo); |
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184 |
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185 // lcdshader currently enabled by default; use "false" to disable |
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186 String lcd = java.security.AccessController.doPrivileged( |
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187 new sun.security.action.GetPropertyAction( |
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188 "sun.java2d.opengl.lcdshader")); |
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189 isLCDShaderEnabled = !"false".equals(lcd); |
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190 |
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191 // biopshader currently enabled by default; use "false" to disable |
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192 String biop = java.security.AccessController.doPrivileged( |
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193 new sun.security.action.GetPropertyAction( |
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194 "sun.java2d.opengl.biopshader")); |
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195 isBIOpShaderEnabled = !"false".equals(biop); |
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196 |
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197 // gradshader currently enabled by default; use "false" to disable |
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198 String grad = java.security.AccessController.doPrivileged( |
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199 new sun.security.action.GetPropertyAction( |
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200 "sun.java2d.opengl.gradshader")); |
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201 isGradShaderEnabled = !"false".equals(grad); |
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202 |
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203 OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
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204 oglImagePipe = new OGLDrawImage(); |
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205 oglTextPipe = new OGLTextRenderer(rq); |
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206 oglRenderPipe = new OGLRenderer(rq); |
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207 if (GraphicsPrimitive.tracingEnabled()) { |
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208 oglTextPipe = oglTextPipe.traceWrap(); |
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209 //The wrapped oglRenderPipe will wrap the AA pipe as well... |
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210 //oglAAPgramPipe = oglRenderPipe.traceWrap(); |
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211 } |
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212 oglAAPgramPipe = oglRenderPipe.getAAParallelogramPipe(); |
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213 oglTxRenderPipe = |
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214 new PixelToParallelogramConverter(oglRenderPipe, |
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215 oglRenderPipe, |
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216 1.0, 0.25, true); |
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217 |
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218 OGLBlitLoops.register(); |
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219 OGLMaskFill.register(); |
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220 OGLMaskBlit.register(); |
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221 } |
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222 } |
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223 |
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224 protected OGLSurfaceData(OGLGraphicsConfig gc, |
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225 ColorModel cm, int type) |
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226 { |
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227 super(getCustomSurfaceType(type), cm); |
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228 this.graphicsConfig = gc; |
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229 this.type = type; |
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230 setBlitProxyKey(gc.getProxyKey()); |
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231 } |
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232 |
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233 @Override |
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234 public SurfaceDataProxy makeProxyFor(SurfaceData srcData) { |
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235 return OGLSurfaceDataProxy.createProxy(srcData, graphicsConfig); |
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236 } |
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237 |
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238 /** |
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239 * Returns the appropriate SurfaceType corresponding to the given OpenGL |
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240 * surface type constant (e.g. TEXTURE -> OpenGLTexture). |
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241 */ |
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242 private static SurfaceType getCustomSurfaceType(int oglType) { |
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243 switch (oglType) { |
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244 case TEXTURE: |
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245 return OpenGLTexture; |
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246 case FBOBJECT: |
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247 return OpenGLSurfaceRTT; |
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248 default: |
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249 return OpenGLSurface; |
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250 } |
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251 } |
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252 |
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253 /** |
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254 * Note: This should only be called from the QFT under the AWT lock. |
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255 * This method is kept separate from the initSurface() method below just |
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256 * to keep the code a bit cleaner. |
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257 */ |
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258 private void initSurfaceNow(int width, int height) { |
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259 boolean isOpaque = (getTransparency() == Transparency.OPAQUE); |
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260 boolean success = false; |
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261 |
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262 switch (type) { |
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263 case TEXTURE: |
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264 success = initTexture(getNativeOps(), |
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265 isOpaque, isTexNonPow2Available(), |
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266 isTexRectAvailable(), |
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267 width, height); |
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268 break; |
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269 |
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270 case FBOBJECT: |
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271 success = initFBObject(getNativeOps(), |
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272 isOpaque, isTexNonPow2Available(), |
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273 isTexRectAvailable(), |
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274 width, height); |
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275 break; |
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276 |
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277 case FLIP_BACKBUFFER: |
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278 success = initFlipBackbuffer(getNativeOps()); |
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279 break; |
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280 |
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281 default: |
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282 break; |
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283 } |
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284 |
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285 if (!success) { |
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286 throw new OutOfMemoryError("can't create offscreen surface"); |
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287 } |
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288 } |
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289 |
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290 /** |
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291 * Initializes the appropriate OpenGL offscreen surface based on the value |
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292 * of the type parameter. If the surface creation fails for any reason, |
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293 * an OutOfMemoryError will be thrown. |
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294 */ |
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295 protected void initSurface(final int width, final int height) { |
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296 OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
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297 rq.lock(); |
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298 try { |
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299 switch (type) { |
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300 case TEXTURE: |
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301 case FBOBJECT: |
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302 // need to make sure the context is current before |
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303 // creating the texture or fbobject |
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304 OGLContext.setScratchSurface(graphicsConfig); |
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305 break; |
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306 default: |
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307 break; |
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308 } |
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309 rq.flushAndInvokeNow(new Runnable() { |
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310 public void run() { |
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311 initSurfaceNow(width, height); |
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312 } |
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313 }); |
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314 } finally { |
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315 rq.unlock(); |
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316 } |
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317 } |
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318 |
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319 /** |
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320 * Returns the OGLContext for the GraphicsConfig associated with this |
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321 * surface. |
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322 */ |
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323 public final OGLContext getContext() { |
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324 return graphicsConfig.getContext(); |
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325 } |
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326 |
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327 /** |
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328 * Returns the OGLGraphicsConfig associated with this surface. |
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329 */ |
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330 final OGLGraphicsConfig getOGLGraphicsConfig() { |
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331 return graphicsConfig; |
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332 } |
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333 |
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334 /** |
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335 * Returns one of the surface type constants defined above. |
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336 */ |
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337 public final int getType() { |
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338 return type; |
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339 } |
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340 |
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341 /** |
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342 * If this surface is backed by a texture object, returns the target |
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343 * for that texture (either GL_TEXTURE_2D or GL_TEXTURE_RECTANGLE_ARB). |
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344 * Otherwise, this method will return zero. |
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345 */ |
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346 public final int getTextureTarget() { |
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347 return getTextureTarget(getNativeOps()); |
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348 } |
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349 |
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350 /** |
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351 * If this surface is backed by a texture object, returns the texture ID |
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352 * for that texture. |
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353 * Otherwise, this method will return zero. |
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354 */ |
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355 public final int getTextureID() { |
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356 return getTextureID(getNativeOps()); |
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357 } |
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358 |
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359 /** |
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360 * Returns native resource of specified {@code resType} associated with |
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361 * this surface. |
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362 * |
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363 * Specifically, for {@code OGLSurfaceData} this method returns the |
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364 * the following: |
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365 * <pre> |
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366 * TEXTURE - texture id |
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367 * </pre> |
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368 * |
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369 * Note: the resource returned by this method is only valid on the rendering |
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370 * thread. |
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371 * |
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372 * @return native resource of specified type or 0L if |
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373 * such resource doesn't exist or can not be retrieved. |
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374 * @see sun.java2d.pipe.hw.AccelSurface#getNativeResource |
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375 */ |
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376 public long getNativeResource(int resType) { |
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377 if (resType == TEXTURE) { |
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378 return getTextureID(); |
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379 } |
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380 return 0L; |
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381 } |
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382 |
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383 public Raster getRaster(int x, int y, int w, int h) { |
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384 throw new InternalError("not implemented yet"); |
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385 } |
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386 |
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387 /** |
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388 * For now, we can only render LCD text if: |
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389 * - the fragment shader extension is available, and |
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390 * - the source color is opaque, and |
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391 * - blending is SrcOverNoEa or disabled |
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392 * - and the destination is opaque |
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393 * |
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394 * Eventually, we could enhance the native OGL text rendering code |
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395 * and remove the above restrictions, but that would require significantly |
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396 * more code just to support a few uncommon cases. |
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397 */ |
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398 public boolean canRenderLCDText(SunGraphics2D sg2d) { |
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399 return |
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400 graphicsConfig.isCapPresent(CAPS_EXT_LCD_SHADER) && |
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401 sg2d.surfaceData.getTransparency() == Transparency.OPAQUE && |
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402 sg2d.paintState <= SunGraphics2D.PAINT_OPAQUECOLOR && |
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403 (sg2d.compositeState <= SunGraphics2D.COMP_ISCOPY || |
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404 (sg2d.compositeState <= SunGraphics2D.COMP_ALPHA && canHandleComposite(sg2d.composite))); |
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405 } |
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406 |
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407 private boolean canHandleComposite(Composite c) { |
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408 if (c instanceof AlphaComposite) { |
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409 AlphaComposite ac = (AlphaComposite)c; |
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410 |
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411 return ac.getRule() == AlphaComposite.SRC_OVER && ac.getAlpha() >= 1f; |
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412 } |
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413 return false; |
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414 } |
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415 |
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416 public void validatePipe(SunGraphics2D sg2d) { |
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417 TextPipe textpipe; |
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418 boolean validated = false; |
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419 |
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420 // OGLTextRenderer handles both AA and non-AA text, but |
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421 // only works with the following modes: |
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422 // (Note: For LCD text we only enter this code path if |
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423 // canRenderLCDText() has already validated that the mode is |
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424 // CompositeType.SrcNoEa (opaque color), which will be subsumed |
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425 // by the CompositeType.SrcNoEa (any color) test below.) |
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426 |
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427 if (/* CompositeType.SrcNoEa (any color) */ |
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428 (sg2d.compositeState <= SunGraphics2D.COMP_ISCOPY && |
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429 sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR) || |
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430 |
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431 /* CompositeType.SrcOver (any color) */ |
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432 (sg2d.compositeState == SunGraphics2D.COMP_ALPHA && |
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433 sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR && |
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434 (((AlphaComposite)sg2d.composite).getRule() == |
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435 AlphaComposite.SRC_OVER)) || |
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436 |
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437 /* CompositeType.Xor (any color) */ |
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438 (sg2d.compositeState == SunGraphics2D.COMP_XOR && |
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439 sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR)) |
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440 { |
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441 textpipe = oglTextPipe; |
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442 } else { |
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443 // do this to initialize textpipe correctly; we will attempt |
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444 // to override the non-text pipes below |
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445 super.validatePipe(sg2d); |
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446 textpipe = sg2d.textpipe; |
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447 validated = true; |
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448 } |
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449 |
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450 PixelToParallelogramConverter txPipe = null; |
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451 OGLRenderer nonTxPipe = null; |
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452 |
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453 if (sg2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_ON) { |
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454 if (sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR) { |
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455 if (sg2d.compositeState <= SunGraphics2D.COMP_XOR) { |
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456 txPipe = oglTxRenderPipe; |
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457 nonTxPipe = oglRenderPipe; |
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458 } |
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459 } else if (sg2d.compositeState <= SunGraphics2D.COMP_ALPHA) { |
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460 if (OGLPaints.isValid(sg2d)) { |
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461 txPipe = oglTxRenderPipe; |
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462 nonTxPipe = oglRenderPipe; |
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463 } |
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464 // custom paints handled by super.validatePipe() below |
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465 } |
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466 } else { |
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467 if (sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR) { |
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468 if (graphicsConfig.isCapPresent(CAPS_PS30) && |
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469 (sg2d.imageComp == CompositeType.SrcOverNoEa || |
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470 sg2d.imageComp == CompositeType.SrcOver)) |
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471 { |
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472 if (!validated) { |
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473 super.validatePipe(sg2d); |
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474 validated = true; |
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475 } |
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476 PixelToParallelogramConverter aaConverter = |
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477 new PixelToParallelogramConverter(sg2d.shapepipe, |
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478 oglAAPgramPipe, |
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479 1.0/8.0, 0.499, |
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480 false); |
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481 sg2d.drawpipe = aaConverter; |
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482 sg2d.fillpipe = aaConverter; |
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483 sg2d.shapepipe = aaConverter; |
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484 } else if (sg2d.compositeState == SunGraphics2D.COMP_XOR) { |
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485 // install the solid pipes when AA and XOR are both enabled |
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486 txPipe = oglTxRenderPipe; |
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487 nonTxPipe = oglRenderPipe; |
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488 } |
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489 } |
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490 // other cases handled by super.validatePipe() below |
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491 } |
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492 |
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493 if (txPipe != null) { |
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494 if (sg2d.transformState >= SunGraphics2D.TRANSFORM_TRANSLATESCALE) { |
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495 sg2d.drawpipe = txPipe; |
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496 sg2d.fillpipe = txPipe; |
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497 } else if (sg2d.strokeState != SunGraphics2D.STROKE_THIN) { |
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498 sg2d.drawpipe = txPipe; |
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499 sg2d.fillpipe = nonTxPipe; |
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500 } else { |
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501 sg2d.drawpipe = nonTxPipe; |
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502 sg2d.fillpipe = nonTxPipe; |
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503 } |
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504 // Note that we use the transforming pipe here because it |
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505 // will examine the shape and possibly perform an optimized |
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506 // operation if it can be simplified. The simplifications |
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507 // will be valid for all STROKE and TRANSFORM types. |
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508 sg2d.shapepipe = txPipe; |
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509 } else { |
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510 if (!validated) { |
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511 super.validatePipe(sg2d); |
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512 } |
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513 } |
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514 |
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515 // install the text pipe based on our earlier decision |
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516 sg2d.textpipe = textpipe; |
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517 |
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518 // always override the image pipe with the specialized OGL pipe |
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519 sg2d.imagepipe = oglImagePipe; |
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520 } |
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521 |
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522 @Override |
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523 protected MaskFill getMaskFill(SunGraphics2D sg2d) { |
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524 if (sg2d.paintState > SunGraphics2D.PAINT_ALPHACOLOR) { |
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525 /* |
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526 * We can only accelerate non-Color MaskFill operations if |
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527 * all of the following conditions hold true: |
|
528 * - there is an implementation for the given paintState |
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529 * - the current Paint can be accelerated for this destination |
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530 * - multitexturing is available (since we need to modulate |
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531 * the alpha mask texture with the paint texture) |
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532 * |
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533 * In all other cases, we return null, in which case the |
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534 * validation code will choose a more general software-based loop. |
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535 */ |
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536 if (!OGLPaints.isValid(sg2d) || |
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537 !graphicsConfig.isCapPresent(CAPS_MULTITEXTURE)) |
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538 { |
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539 return null; |
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540 } |
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541 } |
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542 return super.getMaskFill(sg2d); |
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543 } |
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544 |
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545 @Override |
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546 public boolean copyArea(SunGraphics2D sg2d, int x, int y, int w, int h, |
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547 int dx, int dy) { |
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548 if (sg2d.compositeState >= SunGraphics2D.COMP_XOR) { |
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549 return false; |
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550 } |
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551 oglRenderPipe.copyArea(sg2d, x, y, w, h, dx, dy); |
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552 return true; |
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553 } |
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554 |
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555 public void flush() { |
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556 invalidate(); |
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557 OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
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558 rq.lock(); |
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559 try { |
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560 // make sure we have a current context before |
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561 // disposing the native resources (e.g. texture object) |
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562 OGLContext.setScratchSurface(graphicsConfig); |
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563 |
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564 RenderBuffer buf = rq.getBuffer(); |
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565 rq.ensureCapacityAndAlignment(12, 4); |
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566 buf.putInt(FLUSH_SURFACE); |
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567 buf.putLong(getNativeOps()); |
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568 |
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569 // this call is expected to complete synchronously, so flush now |
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570 rq.flushNow(); |
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571 } finally { |
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572 rq.unlock(); |
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573 } |
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574 } |
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575 |
|
576 /** |
|
577 * Disposes the native resources associated with the given OGLSurfaceData |
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578 * (referenced by the pData parameter). This method is invoked from |
|
579 * the native Dispose() method from the Disposer thread when the |
|
580 * Java-level OGLSurfaceData object is about to go away. Note that we |
|
581 * also pass a reference to the native GLX/WGLGraphicsConfigInfo |
|
582 * (pConfigInfo) for the purposes of making a context current. |
|
583 */ |
|
584 static void dispose(long pData, long pConfigInfo) { |
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585 OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
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586 rq.lock(); |
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587 try { |
|
588 // make sure we have a current context before |
|
589 // disposing the native resources (e.g. texture object) |
|
590 OGLContext.setScratchSurface(pConfigInfo); |
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591 |
|
592 RenderBuffer buf = rq.getBuffer(); |
|
593 rq.ensureCapacityAndAlignment(12, 4); |
|
594 buf.putInt(DISPOSE_SURFACE); |
|
595 buf.putLong(pData); |
|
596 |
|
597 // this call is expected to complete synchronously, so flush now |
|
598 rq.flushNow(); |
|
599 } finally { |
|
600 rq.unlock(); |
|
601 } |
|
602 } |
|
603 |
|
604 static void swapBuffers(long window) { |
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605 OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
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606 rq.lock(); |
|
607 try { |
|
608 RenderBuffer buf = rq.getBuffer(); |
|
609 rq.ensureCapacityAndAlignment(12, 4); |
|
610 buf.putInt(SWAP_BUFFERS); |
|
611 buf.putLong(window); |
|
612 rq.flushNow(); |
|
613 } finally { |
|
614 rq.unlock(); |
|
615 } |
|
616 } |
|
617 |
|
618 /** |
|
619 * Returns true if OpenGL textures can have non-power-of-two dimensions |
|
620 * when using the basic GL_TEXTURE_2D target. |
|
621 */ |
|
622 boolean isTexNonPow2Available() { |
|
623 return graphicsConfig.isCapPresent(CAPS_TEXNONPOW2); |
|
624 } |
|
625 |
|
626 /** |
|
627 * Returns true if OpenGL textures can have non-power-of-two dimensions |
|
628 * when using the GL_TEXTURE_RECTANGLE_ARB target (only available when the |
|
629 * GL_ARB_texture_rectangle extension is present). |
|
630 */ |
|
631 boolean isTexRectAvailable() { |
|
632 return graphicsConfig.isCapPresent(CAPS_EXT_TEXRECT); |
|
633 } |
|
634 |
|
635 public Rectangle getNativeBounds() { |
|
636 OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
|
637 rq.lock(); |
|
638 try { |
|
639 return new Rectangle(nativeWidth, nativeHeight); |
|
640 } finally { |
|
641 rq.unlock(); |
|
642 } |
|
643 } |
|
644 |
|
645 /** |
|
646 * Returns true if the surface is an on-screen window surface or |
|
647 * a FBO texture attached to an on-screen CALayer. |
|
648 * |
|
649 * Needed by Mac OS X port. |
|
650 */ |
|
651 boolean isOnScreen() { |
|
652 return getType() == WINDOW; |
|
653 } |
|
654 } |