1 /* 2 * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.scenario.effect.compiler.backend.sw.sse; 27 28 import java.io.InputStreamReader; 29 import java.io.Reader; 30 import java.util.Collection; 31 import java.util.Comparator; 32 import java.util.HashMap; 33 import java.util.HashSet; 34 import java.util.Map; 35 import java.util.Set; 36 import java.util.SortedSet; 37 import java.util.TreeSet; 38 import com.sun.scenario.effect.compiler.JSLParser; 39 import com.sun.scenario.effect.compiler.model.BaseType; 40 import com.sun.scenario.effect.compiler.model.Qualifier; 41 import com.sun.scenario.effect.compiler.model.Type; 42 import com.sun.scenario.effect.compiler.model.Variable; 43 import com.sun.scenario.effect.compiler.tree.FuncDef; 44 import com.sun.scenario.effect.compiler.tree.ProgramUnit; 45 import com.sun.scenario.effect.compiler.tree.TreeScanner; 46 import org.antlr.stringtemplate.StringTemplate; 47 import org.antlr.stringtemplate.StringTemplateGroup; 48 import org.antlr.stringtemplate.language.DefaultTemplateLexer; 49 50 /** 51 */ 52 public class SSEBackend extends TreeScanner { 53 54 private final JSLParser parser; 55 private final String body; 56 57 public SSEBackend(JSLParser parser, ProgramUnit program) { 58 // TODO: will be removed once we clean up static usage 59 resetStatics(); 60 61 this.parser = parser; 62 63 SSETreeScanner scanner = new SSETreeScanner(); 64 scanner.scan(program); 65 this.body = scanner.getResult(); 66 } 67 68 public static class GenCode { 69 public String javaCode; 70 public String nativeCode; 71 } 72 73 private static void appendGetRelease(StringBuilder get, 74 StringBuilder rel, 75 String ctype, 76 String cbufName, String jarrayName) 77 { 78 get.append("j" + ctype + " *" + cbufName + " = (j" + ctype + " *)"); 79 get.append("env->GetPrimitiveArrayCritical(" + jarrayName + ", 0);\n"); 80 get.append("if (" + cbufName + " == NULL) return;\n"); 81 rel.append("env->ReleasePrimitiveArrayCritical(" + jarrayName + ", " + cbufName + ", JNI_ABORT);\n"); 82 } 83 84 private static SortedSet<Variable> getSortedVars(Collection<Variable> unsortedVars) { 85 Comparator<Variable> c = new Comparator<Variable>() { 86 public int compare(Variable v0, Variable v1) { 87 return v0.getName().compareTo(v1.getName()); 88 } 89 }; 90 SortedSet<Variable> sortedVars = new TreeSet<Variable>(c); 91 sortedVars.addAll(unsortedVars); 92 return sortedVars; 93 } 94 95 public final GenCode getGenCode(String effectName, 96 String peerName, 97 String interfaceName) 98 { 99 Map<String, Variable> vars = parser.getSymbolTable().getGlobalVariables(); 100 StringBuilder interfaceDecl = new StringBuilder(); 101 StringBuilder constants = new StringBuilder(); 102 StringBuilder samplers = new StringBuilder(); 103 StringBuilder cleanup = new StringBuilder(); 104 StringBuilder srcRects = new StringBuilder(); 105 StringBuilder posDecls = new StringBuilder(); 106 StringBuilder pixInitY = new StringBuilder(); 107 StringBuilder pixInitX = new StringBuilder(); 108 StringBuilder posIncrY = new StringBuilder(); 109 StringBuilder posInitY = new StringBuilder(); 110 StringBuilder posIncrX = new StringBuilder(); 111 StringBuilder posInitX = new StringBuilder(); 112 StringBuilder jparams = new StringBuilder(); 113 StringBuilder jparamDecls = new StringBuilder(); 114 StringBuilder cparamDecls = new StringBuilder(); 115 StringBuilder arrayGet = new StringBuilder(); 116 StringBuilder arrayRelease = new StringBuilder(); 117 118 appendGetRelease(arrayGet, arrayRelease, "int", "dst", "dst_arr"); 119 120 // TODO: only need to declare these if pixcoord is referenced 121 // somewhere in the program... 122 pixInitY.append("float pixcoord_y = (float)dy;\n"); 123 pixInitX.append("float pixcoord_x = (float)dx;\n"); 124 125 // this step isn't strictly necessary but helps give some predictability 126 // to the generated jar/nativelib so that the method signatures have 127 // a consistent parameter ordering on all platforms for each build, 128 // which may help debugging (see RT-4475) 129 SortedSet<Variable> sortedVars = getSortedVars(vars.values()); 130 for (Variable v : sortedVars) { 131 if (v.getQualifier() == Qualifier.CONST && v.getConstValue() == null) { 132 // this must be a special built-in variable (e.g. pos0); 133 // these are handled elsewhere, so just continue... 134 continue; 135 } 136 137 Type t = v.getType(); 138 BaseType bt = t.getBaseType(); 139 String vtype = bt.toString(); 140 String vname = v.getName(); 141 if (v.getQualifier() != null && bt != BaseType.SAMPLER) { 142 String accName = v.getAccessorName(); 143 if (v.isArray()) { 144 // TODO: we currently assume that param arrays will be 145 // stored in NIO Int/FloatBuffers, but the inner loop 146 // expects to access them as Java arrays, so we convert 147 // here; this is obviously bad for performance, so we need 148 // to come up with a better system soon... 149 String bufType = (bt == BaseType.FLOAT) ? 150 "FloatBuffer" : "IntBuffer"; 151 String bufName = vname + "_buf"; 152 String arrayName = vname + "_arr"; 153 constants.append(bufType + " " + bufName + " = " + accName + "();\n"); 154 constants.append(vtype + "[] " + arrayName); 155 constants.append(" = new " + vtype + "["); 156 constants.append(bufName + ".capacity()];\n"); 157 constants.append(bufName + ".get(" + arrayName + ");\n"); 158 jparams.append(",\n"); 159 jparams.append(arrayName); 160 jparamDecls.append(",\n"); 161 jparamDecls.append(vtype + "[] " + vname); 162 cparamDecls.append(",\n"); 163 cparamDecls.append("j" + vtype + "Array " + vname); 164 appendGetRelease(arrayGet, arrayRelease, vtype, arrayName, vname); 165 } else { 166 if (t.isVector()) { 167 String arrayName = vname + "_arr"; 168 constants.append(vtype + "[] " + arrayName + " = " + accName + "();\n"); 169 jparams.append(",\n"); 170 jparamDecls.append(",\n"); 171 cparamDecls.append(",\n"); 172 for (int i = 0; i < t.getNumFields(); i++) { 173 if (i > 0) { 174 jparams.append(", "); 175 jparamDecls.append(", "); 176 cparamDecls.append(", "); 177 } 178 String vn = vname + getSuffix(i); 179 jparams.append(arrayName + "[" + i + "]"); 180 jparamDecls.append(vtype + " " + vn); 181 cparamDecls.append("j" + vtype + " " + vn); 182 } 183 } else { 184 constants.append(vtype + " " + vname); 185 if (v.getQualifier() == Qualifier.CONST) { 186 constants.append(" = " + v.getConstValue()); 187 } else { 188 constants.append(" = " + accName + "()"); 189 } 190 constants.append(";\n"); 191 jparams.append(",\n"); 192 jparams.append(vname); 193 jparamDecls.append(",\n"); 194 jparamDecls.append(vtype + " " + vname); 195 cparamDecls.append(",\n"); 196 cparamDecls.append("j" + vtype + " " + vname); 197 } 198 } 199 } else if (v.getQualifier() == Qualifier.PARAM && bt == BaseType.SAMPLER) { 200 int i = v.getReg(); 201 if (t == Type.FSAMPLER) { 202 samplers.append("FloatMap src" + i + " = (FloatMap)getSamplerData(" + i + ");\n"); 203 samplers.append("int src" + i + "x = 0;\n"); 204 samplers.append("int src" + i + "y = 0;\n"); 205 samplers.append("int src" + i + "w = src" + i + ".getWidth();\n"); 206 samplers.append("int src" + i + "h = src" + i + ".getHeight();\n"); 207 samplers.append("int src" + i + "scan = src" + i + ".getWidth();\n"); 208 samplers.append("float[] " + vname + " = src" + i + ".getData();\n"); 209 210 arrayGet.append("float " + vname + "_vals[4];\n"); 211 212 // TODO: for now, assume [0,0,1,1] 213 srcRects.append("float[] src" + i + "Rect = new float[] {0,0,1,1};\n"); 214 215 jparams.append(",\n"); 216 jparams.append(vname); 217 218 jparamDecls.append(",\n"); 219 jparamDecls.append("float[] " + vname + "_arr"); 220 221 cparamDecls.append(",\n"); 222 cparamDecls.append("jfloatArray " + vname + "_arr"); 223 224 appendGetRelease(arrayGet, arrayRelease, "float", vname, vname + "_arr"); 225 } else { 226 if (t == Type.LSAMPLER) { 227 samplers.append("HeapImage src" + i + " = (HeapImage)inputs[" + i + "].getUntransformedImage();\n"); 228 } else { 229 samplers.append("HeapImage src" + i + " = (HeapImage)inputs[" + i + "].getTransformedImage(dstBounds);\n"); 230 cleanup.append("inputs[" + i + "].releaseTransformedImage(src" + i + ");\n"); 231 } 232 samplers.append("int src" + i + "x = 0;\n"); 233 samplers.append("int src" + i + "y = 0;\n"); 234 samplers.append("int src" + i + "w = src" + i + ".getPhysicalWidth();\n"); 235 samplers.append("int src" + i + "h = src" + i + ".getPhysicalHeight();\n"); 236 samplers.append("int src" + i + "scan = src" + i + ".getScanlineStride();\n"); 237 samplers.append("int[] " + vname + " =\n"); 238 samplers.append(" src" + i + ".getPixelArray();\n"); 239 240 samplers.append("Rectangle src" + i + "Bounds = new Rectangle("); 241 samplers.append("src" + i + "x, "); 242 samplers.append("src" + i + "y, "); 243 samplers.append("src" + i + "w, "); 244 samplers.append("src" + i + "h);\n"); 245 if (t == Type.LSAMPLER) { 246 samplers.append("Rectangle src" + i + "InputBounds = inputs[" + i + "].getUntransformedBounds();\n"); 247 samplers.append("BaseTransform src" + i + "Transform = inputs[" + i + "].getTransform();\n"); 248 } else { 249 samplers.append("Rectangle src" + i + "InputBounds = inputs[" + i + "].getTransformedBounds(dstBounds);\n"); 250 samplers.append("BaseTransform src" + i + "Transform = BaseTransform.IDENTITY_TRANSFORM;\n"); 251 } 252 samplers.append("setInputBounds(" + i + ", src" + i + "InputBounds);\n"); 253 samplers.append("setInputNativeBounds(" + i + ", src" + i + "Bounds);\n"); 254 255 if (t == Type.LSAMPLER) { 256 arrayGet.append("float " + vname + "_vals[4];\n"); 257 } 258 259 // the source rect decls need to come after all calls to 260 // setInput[Native]Bounds() for all inputs (since the 261 // getSourceRegion() impl may need to query the bounds of 262 // other inputs, as is the case in PhongLighting)... 263 srcRects.append("float[] src" + i + "Rect = new float[4];\n"); 264 // Note that we only allocate 4 floats here because none 265 // of the loops can deal with fully mapped inputs. Only 266 // shaders that declare LSAMPLERs would require mapped 267 // inputs and so far that is only Perspective and 268 // Displacement, both of which override getTC() and return 269 // only 4 values. 270 srcRects.append("getTextureCoordinates(" + i + ", src" + i + "Rect,\n"); 271 srcRects.append(" src" + i + "InputBounds.x, src" + i + "InputBounds.y,\n"); 272 srcRects.append(" src" + i + "w, src" + i + "h,\n"); 273 srcRects.append(" dstBounds, src" + i + "Transform);\n"); 274 275 jparams.append(",\n"); 276 jparams.append(vname); 277 278 jparamDecls.append(",\n"); 279 jparamDecls.append("int[] " + vname + "_arr"); 280 281 cparamDecls.append(",\n"); 282 cparamDecls.append("jintArray " + vname + "_arr"); 283 284 appendGetRelease(arrayGet, arrayRelease, "int", vname, vname + "_arr"); 285 } 286 287 posDecls.append("float inc" + i + "_x = (src" + i + "Rect_x2 - src" + i + "Rect_x1) / dstw;\n"); 288 posDecls.append("float inc" + i + "_y = (src" + i + "Rect_y2 - src" + i + "Rect_y1) / dsth;\n"); 289 290 posInitY.append("float pos" + i + "_y = src" + i + "Rect_y1 + inc" + i + "_y*0.5f;\n"); 291 posInitX.append("float pos" + i + "_x = src" + i + "Rect_x1 + inc" + i + "_x*0.5f;\n"); 292 posIncrX.append("pos" + i + "_x += inc" + i + "_x;\n"); 293 posIncrY.append("pos" + i + "_y += inc" + i + "_y;\n"); 294 295 jparams.append(",\n"); 296 jparams.append("src" + i + "Rect[0], src" + i + "Rect[1],\n"); 297 jparams.append("src" + i + "Rect[2], src" + i + "Rect[3],\n"); 298 jparams.append("src" + i + "w, src" + i + "h, src" + i + "scan"); 299 300 jparamDecls.append(",\n"); 301 jparamDecls.append("float src" + i + "Rect_x1, float src" + i + "Rect_y1,\n"); 302 jparamDecls.append("float src" + i + "Rect_x2, float src" + i + "Rect_y2,\n"); 303 jparamDecls.append("int src" + i + "w, int src" + i + "h, int src" + i + "scan"); 304 305 cparamDecls.append(",\n"); 306 cparamDecls.append("jfloat src" + i + "Rect_x1, jfloat src" + i + "Rect_y1,\n"); 307 cparamDecls.append("jfloat src" + i + "Rect_x2, jfloat src" + i + "Rect_y2,\n"); 308 cparamDecls.append("jint src" + i + "w, jint src" + i + "h, jint src" + i + "scan"); 309 } 310 } 311 312 if (interfaceName != null) { 313 interfaceDecl.append("implements "+interfaceName); 314 } 315 316 Reader template = new InputStreamReader(getClass().getResourceAsStream("SSEJavaGlue.stg")); 317 StringTemplateGroup group = new StringTemplateGroup(template, DefaultTemplateLexer.class); 318 StringTemplate jglue = group.getInstanceOf("glue"); 319 jglue.setAttribute("effectName", effectName); 320 jglue.setAttribute("peerName", peerName); 321 jglue.setAttribute("interfaceDecl", interfaceDecl.toString()); 322 jglue.setAttribute("usercode", usercode.toString()); 323 jglue.setAttribute("samplers", samplers.toString()); 324 jglue.setAttribute("cleanup", cleanup.toString()); 325 jglue.setAttribute("srcRects", srcRects.toString()); 326 jglue.setAttribute("constants", constants.toString()); 327 jglue.setAttribute("params", jparams.toString()); 328 jglue.setAttribute("paramDecls", jparamDecls.toString()); 329 330 template = new InputStreamReader(getClass().getResourceAsStream("SSENativeGlue.stg")); 331 group = new StringTemplateGroup(template, DefaultTemplateLexer.class); 332 StringTemplate cglue = group.getInstanceOf("glue"); 333 cglue.setAttribute("peerName", peerName); 334 cglue.setAttribute("jniName", peerName.replace("_", "_1")); 335 cglue.setAttribute("paramDecls", cparamDecls.toString()); 336 cglue.setAttribute("arrayGet", arrayGet.toString()); 337 cglue.setAttribute("arrayRelease", arrayRelease.toString()); 338 cglue.setAttribute("posDecls", posDecls.toString()); 339 cglue.setAttribute("pixInitY", pixInitY.toString()); 340 cglue.setAttribute("pixInitX", pixInitX.toString()); 341 cglue.setAttribute("posIncrY", posIncrY.toString()); 342 cglue.setAttribute("posInitY", posInitY.toString()); 343 cglue.setAttribute("posIncrX", posIncrX.toString()); 344 cglue.setAttribute("posInitX", posInitX.toString()); 345 cglue.setAttribute("body", body); 346 347 GenCode gen = new GenCode(); 348 gen.javaCode = jglue.toString(); 349 gen.nativeCode = cglue.toString(); 350 return gen; 351 } 352 353 // TODO: need better mechanism for querying fields 354 private static char[] fields = {'x', 'y', 'z', 'w'}; 355 public static String getSuffix(int i) { 356 return "_" + fields[i]; 357 } 358 359 static int getFieldIndex(char field) { 360 switch (field) { 361 case 'r': 362 case 'x': 363 return 0; 364 case 'g': 365 case 'y': 366 return 1; 367 case 'b': 368 case 'z': 369 return 2; 370 case 'a': 371 case 'w': 372 return 3; 373 default: 374 throw new InternalError(); 375 } 376 } 377 378 // TODO: these shouldn't be implemented as a static method 379 private static Map<String, FuncDef> funcDefs = new HashMap<String, FuncDef>(); 380 static void putFuncDef(FuncDef def) { 381 funcDefs.put(def.getFunction().getName(), def); 382 } 383 static FuncDef getFuncDef(String name) { 384 return funcDefs.get(name); 385 } 386 387 private static Set<String> resultVars = new HashSet<String>(); 388 static boolean isResultVarDeclared(String vname) { 389 return resultVars.contains(vname); 390 } 391 static void declareResultVar(String vname) { 392 resultVars.add(vname); 393 } 394 395 private static StringBuilder usercode = new StringBuilder(); 396 static void addGlueBlock(String block) { 397 usercode.append(block); 398 } 399 400 private static void resetStatics() { 401 funcDefs.clear(); 402 resultVars.clear(); 403 usercode = new StringBuilder(); 404 } 405 }