J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2000-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #include "sun_java2d_x11_X11Renderer.h" |
| 27 | |
| 28 | #include "X11SurfaceData.h" |
| 29 | #include "SpanIterator.h" |
| 30 | #include "Trace.h" |
| 31 | #include "ProcessPath.h" |
| 32 | #include "GraphicsPrimitiveMgr.h" |
| 33 | |
| 34 | |
| 35 | #include <jlong.h> |
| 36 | |
| 37 | #ifndef HEADLESS |
| 38 | #define POLYTEMPSIZE (int)(256 / sizeof(XPoint)) |
| 39 | #define ABS(n) (((n) < 0) ? -(n) : (n)) |
| 40 | |
| 41 | #define MAX_SHORT 32767 |
| 42 | #define MIN_SHORT (-32768) |
| 43 | |
| 44 | #define CLAMP_TO_SHORT(x) (((x) > MAX_SHORT) \ |
| 45 | ? MAX_SHORT \ |
| 46 | : ((x) < MIN_SHORT) \ |
| 47 | ? MIN_SHORT \ |
| 48 | : (x)) |
| 49 | |
| 50 | #define CLAMP_TO_USHORT(x) (((x) > 65535) ? 65535 : ((x) < 0) ? 0 : (x)) |
| 51 | |
| 52 | #define DF_MAX_XPNTS 256 |
| 53 | |
| 54 | typedef struct { |
| 55 | Drawable drawable; |
| 56 | GC gc; |
| 57 | XPoint *pPoints; |
| 58 | XPoint dfPoints[DF_MAX_XPNTS]; |
| 59 | jint npoints; |
| 60 | jint maxpoints; |
| 61 | } XDrawHandlerData; |
| 62 | |
| 63 | #define XDHD_INIT(PTR, _GC, DRAWABLE) \ |
| 64 | do { \ |
| 65 | (PTR)->pPoints = (PTR)->dfPoints; \ |
| 66 | (PTR)->npoints = 0; \ |
| 67 | (PTR)->maxpoints = DF_MAX_XPNTS; \ |
| 68 | (PTR)->gc = (_GC); \ |
| 69 | (PTR)->drawable = (DRAWABLE); \ |
| 70 | } while(0) |
| 71 | |
| 72 | #define XDHD_RESET(PTR) \ |
| 73 | do { \ |
| 74 | (PTR)->npoints = 0; \ |
| 75 | } while(0) |
| 76 | |
| 77 | |
| 78 | #define XDHD_ADD_POINT(PTR, X, Y) \ |
| 79 | do { \ |
| 80 | XPoint* _pnts = (PTR)->pPoints; \ |
| 81 | jint _npnts = (PTR)->npoints; \ |
| 82 | if (_npnts >= (PTR)->maxpoints) { \ |
| 83 | jint newMax = (PTR)->maxpoints*2; \ |
| 84 | if ((PTR)->pPoints == (PTR)->dfPoints) { \ |
| 85 | (PTR)->pPoints = (XPoint*)malloc(newMax*sizeof(XPoint)); \ |
| 86 | memcpy((PTR)->pPoints, _pnts, _npnts*sizeof(XPoint)); \ |
| 87 | } else { \ |
| 88 | (PTR)->pPoints = (XPoint*)realloc( \ |
| 89 | _pnts, newMax*sizeof(XPoint)); \ |
| 90 | } \ |
| 91 | _pnts = (PTR)->pPoints; \ |
| 92 | (PTR)->maxpoints = newMax; \ |
| 93 | } \ |
| 94 | _pnts += _npnts; \ |
| 95 | _pnts->x = X; \ |
| 96 | _pnts->y = Y; \ |
| 97 | (PTR)->npoints = _npnts + 1; \ |
| 98 | } while(0) |
| 99 | |
| 100 | #define XDHD_FREE_POINTS(PTR) \ |
| 101 | do { \ |
| 102 | if ((PTR)->pPoints != (PTR)->dfPoints) { \ |
| 103 | free((PTR)->pPoints); \ |
| 104 | } \ |
| 105 | } while(0) |
| 106 | |
| 107 | |
| 108 | static void |
| 109 | awt_drawArc(JNIEnv * env, jint drawable, GC xgc, |
| 110 | int x, int y, int w, int h, |
| 111 | int startAngle, int endAngle, |
| 112 | int filled) |
| 113 | { |
| 114 | int s, e; |
| 115 | |
| 116 | if (w < 0 || h < 0) { |
| 117 | return; |
| 118 | } |
| 119 | if (endAngle >= 360 || endAngle <= -360) { |
| 120 | s = 0; |
| 121 | e = 360 * 64; |
| 122 | } else { |
| 123 | s = (startAngle % 360) * 64; |
| 124 | e = endAngle * 64; |
| 125 | } |
| 126 | if (filled == 0) { |
| 127 | XDrawArc(awt_display, drawable, xgc, x, y, w, h, s, e); |
| 128 | } else { |
| 129 | XFillArc(awt_display, drawable, xgc, x, y, w, h, s, e); |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | /* |
| 134 | * Copy vertices from xcoordsArray and ycoordsArray to a buffer |
| 135 | * of XPoint structures, translating by transx and transy and |
| 136 | * collapsing empty segments out of the list as we go. |
| 137 | * The number of points to be converted should be guaranteed |
| 138 | * to be more than 2 by the caller and is stored at *pNpoints. |
| 139 | * The resulting number of uncollapsed unique translated vertices |
| 140 | * will be stored back into the location *pNpoints. |
| 141 | * The points pointer is guaranteed to be pointing to an area of |
| 142 | * memory large enough for POLYTEMPSIZE points and a larger |
| 143 | * area of memory is allocated (and returned) if that is not enough. |
| 144 | */ |
| 145 | static XPoint * |
| 146 | transformPoints(JNIEnv * env, |
| 147 | jintArray xcoordsArray, jintArray ycoordsArray, |
| 148 | jint transx, jint transy, |
| 149 | XPoint * points, int *pNpoints, int close) |
| 150 | { |
| 151 | int npoints = *pNpoints; |
| 152 | jint *xcoords, *ycoords; |
| 153 | |
| 154 | xcoords = (jint *) |
| 155 | (*env)->GetPrimitiveArrayCritical(env, xcoordsArray, NULL); |
| 156 | if (xcoords == NULL) { |
| 157 | return 0; |
| 158 | } |
| 159 | |
| 160 | ycoords = (jint *) |
| 161 | (*env)->GetPrimitiveArrayCritical(env, ycoordsArray, NULL); |
| 162 | if (ycoords == NULL) { |
| 163 | (*env)->ReleasePrimitiveArrayCritical(env, xcoordsArray, xcoords, |
| 164 | JNI_ABORT); |
| 165 | return 0; |
| 166 | } |
| 167 | |
| 168 | if (close) { |
| 169 | close = (xcoords[npoints - 1] != xcoords[0] || |
| 170 | ycoords[npoints - 1] != ycoords[0]); |
| 171 | if (close) { |
| 172 | npoints++; |
| 173 | } |
| 174 | } |
| 175 | if (npoints > POLYTEMPSIZE) { |
| 176 | points = (XPoint *) malloc(sizeof(XPoint) * npoints); |
| 177 | } |
| 178 | if (points != NULL) { |
| 179 | int in, out; |
| 180 | int oldx = CLAMP_TO_SHORT(xcoords[0] + transx); |
| 181 | int oldy = CLAMP_TO_SHORT(ycoords[0] + transy); |
| 182 | points[0].x = oldx; |
| 183 | points[0].y = oldy; |
| 184 | if (close) { |
| 185 | npoints--; |
| 186 | } |
| 187 | for (in = 1, out = 1; in < npoints; in++) { |
| 188 | int newx = CLAMP_TO_SHORT(xcoords[in] + transx); |
| 189 | int newy = CLAMP_TO_SHORT(ycoords[in] + transy); |
| 190 | if (newx != oldx || newy != oldy) { |
| 191 | points[out].x = newx; |
| 192 | points[out].y = newy; |
| 193 | out++; |
| 194 | oldx = newx; |
| 195 | oldy = newy; |
| 196 | } |
| 197 | } |
| 198 | if (out == 1) { |
| 199 | points[1].x = oldx; |
| 200 | points[1].y = oldy; |
| 201 | out = 2; |
| 202 | } else if (close) { |
| 203 | points[out++] = points[0]; |
| 204 | } |
| 205 | *pNpoints = out; |
| 206 | } |
| 207 | |
| 208 | (*env)->ReleasePrimitiveArrayCritical(env, xcoordsArray, xcoords, |
| 209 | JNI_ABORT); |
| 210 | (*env)->ReleasePrimitiveArrayCritical(env, ycoordsArray, ycoords, |
| 211 | JNI_ABORT); |
| 212 | |
| 213 | return points; |
| 214 | } |
| 215 | #endif /* !HEADLESS */ |
| 216 | |
| 217 | /* |
| 218 | * Class: sun_java2d_x11_X11Renderer |
| 219 | * Method: XDrawLine |
| 220 | * Signature: (IJIIII)V |
| 221 | */ |
| 222 | JNIEXPORT void JNICALL Java_sun_java2d_x11_X11Renderer_XDrawLine |
| 223 | (JNIEnv *env, jobject xr, |
| 224 | jlong pXSData, jlong xgc, |
| 225 | jint x1, jint y1, jint x2, jint y2) |
| 226 | { |
| 227 | #ifndef HEADLESS |
| 228 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 229 | |
| 230 | if (xsdo == NULL) { |
| 231 | return; |
| 232 | } |
| 233 | |
| 234 | XDrawLine(awt_display, xsdo->drawable, (GC) xgc, |
| 235 | CLAMP_TO_SHORT(x1), CLAMP_TO_SHORT(y1), |
| 236 | CLAMP_TO_SHORT(x2), CLAMP_TO_SHORT(y2)); |
| 237 | X11SD_DirectRenderNotify(env, xsdo); |
| 238 | #endif /* !HEADLESS */ |
| 239 | } |
| 240 | |
| 241 | /* |
| 242 | * Class: sun_java2d_x11_X11Renderer |
| 243 | * Method: XDrawRect |
| 244 | * Signature: (IJIIII)V |
| 245 | */ |
| 246 | JNIEXPORT void JNICALL Java_sun_java2d_x11_X11Renderer_XDrawRect |
| 247 | (JNIEnv *env, jobject xr, |
| 248 | jlong pXSData, jlong xgc, |
| 249 | jint x, jint y, jint w, jint h) |
| 250 | { |
| 251 | #ifndef HEADLESS |
| 252 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 253 | |
| 254 | if (xsdo == NULL || w < 0 || h < 0) { |
| 255 | return; |
| 256 | } |
| 257 | |
| 258 | if (w < 2 || h < 2) { |
| 259 | /* REMIND: This optimization assumes thin lines. */ |
| 260 | /* |
| 261 | * This optimization not only simplifies the processing |
| 262 | * of a particular degenerate case, but it protects against |
| 263 | * the anomalies of various X11 implementations that draw |
| 264 | * nothing for degenerate Polygons and Rectangles. |
| 265 | */ |
| 266 | XFillRectangle(awt_display, xsdo->drawable, (GC) xgc, |
| 267 | CLAMP_TO_SHORT(x), CLAMP_TO_SHORT(y), |
| 268 | CLAMP_TO_USHORT(w+1), CLAMP_TO_USHORT(h+1)); |
| 269 | } else { |
| 270 | XDrawRectangle(awt_display, xsdo->drawable, (GC) xgc, |
| 271 | CLAMP_TO_SHORT(x), CLAMP_TO_SHORT(y), |
| 272 | CLAMP_TO_USHORT(w), CLAMP_TO_USHORT(h)); |
| 273 | } |
| 274 | X11SD_DirectRenderNotify(env, xsdo); |
| 275 | #endif /* !HEADLESS */ |
| 276 | } |
| 277 | |
| 278 | /* |
| 279 | * Class: sun_java2d_x11_X11Renderer |
| 280 | * Method: XDrawRoundRect |
| 281 | * Signature: (IJIIIIII)V |
| 282 | */ |
| 283 | JNIEXPORT void JNICALL Java_sun_java2d_x11_X11Renderer_XDrawRoundRect |
| 284 | (JNIEnv *env, jobject xr, |
| 285 | jlong pXSData, jlong xgc, |
| 286 | jint x, jint y, jint w, jint h, |
| 287 | jint arcW, jint arcH) |
| 288 | { |
| 289 | #ifndef HEADLESS |
| 290 | long ty1, ty2, tx1, tx2, cx, cy, cxw, cyh, |
| 291 | halfW, halfH, leftW, rightW, topH, bottomH; |
| 292 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 293 | |
| 294 | if (xsdo == NULL || w < 0 || h < 0) { |
| 295 | return; |
| 296 | } |
| 297 | |
| 298 | arcW = ABS(arcW); |
| 299 | arcH = ABS(arcH); |
| 300 | if (arcW > w) { |
| 301 | arcW = w; |
| 302 | } |
| 303 | if (arcH > h) { |
| 304 | arcH = h; |
| 305 | } |
| 306 | |
| 307 | if (arcW == 0 || arcH == 0) { |
| 308 | Java_sun_java2d_x11_X11Renderer_XDrawRect(env, xr, pXSData, xgc, |
| 309 | x, y, w, h); |
| 310 | return; |
| 311 | } |
| 312 | |
| 313 | halfW = (arcW / 2); |
| 314 | halfH = (arcH / 2); |
| 315 | |
| 316 | /* clamp to short bounding box of round rectangle */ |
| 317 | cx = CLAMP_TO_SHORT(x); |
| 318 | cy = CLAMP_TO_SHORT(y); |
| 319 | cxw = CLAMP_TO_SHORT(x + w); |
| 320 | cyh = CLAMP_TO_SHORT(y + h); |
| 321 | |
| 322 | /* clamp to short coordinates of lines */ |
| 323 | tx1 = CLAMP_TO_SHORT(x + halfW + 1); |
| 324 | tx2 = CLAMP_TO_SHORT(x + w - halfW - 1); |
| 325 | ty1 = CLAMP_TO_SHORT(y + halfH + 1); |
| 326 | ty2 = CLAMP_TO_SHORT(y + h - halfH - 1); |
| 327 | |
| 328 | /* |
| 329 | * recalculate heightes and widthes of round parts |
| 330 | * to minimize distortions in visible area |
| 331 | */ |
| 332 | leftW = (tx1 - cx) * 2; |
| 333 | rightW = (cxw - tx2) * 2; |
| 334 | topH = (ty1 - cy) * 2; |
| 335 | bottomH = (cyh - ty2) * 2; |
| 336 | |
| 337 | awt_drawArc(env, xsdo->drawable, (GC) xgc, |
| 338 | cx, cy, leftW, topH, |
| 339 | 90, 90, JNI_FALSE); |
| 340 | awt_drawArc(env, xsdo->drawable, (GC) xgc, |
| 341 | cxw - rightW, cy, rightW, topH, |
| 342 | 0, 90, JNI_FALSE); |
| 343 | awt_drawArc(env, xsdo->drawable, (GC) xgc, |
| 344 | cx, cyh - bottomH, leftW, bottomH, |
| 345 | 180, 90, JNI_FALSE); |
| 346 | awt_drawArc(env, xsdo->drawable, (GC) xgc, |
| 347 | cxw - rightW, cyh - bottomH, rightW, bottomH, |
| 348 | 270, 90, JNI_FALSE); |
| 349 | |
| 350 | if (tx1 <= tx2) { |
| 351 | XDrawLine(awt_display, xsdo->drawable, (GC) xgc, |
| 352 | tx1, cy, tx2, cy); |
| 353 | if (h > 0) { |
| 354 | XDrawLine(awt_display, xsdo->drawable, (GC) xgc, |
| 355 | tx1, cyh, tx2, cyh); |
| 356 | } |
| 357 | } |
| 358 | if (ty1 <= ty2) { |
| 359 | XDrawLine(awt_display, xsdo->drawable, (GC) xgc, |
| 360 | cx, ty1, cx, ty2); |
| 361 | if (w > 0) { |
| 362 | XDrawLine(awt_display, xsdo->drawable, (GC) xgc, |
| 363 | cxw, ty1, cxw, ty2); |
| 364 | } |
| 365 | } |
| 366 | X11SD_DirectRenderNotify(env, xsdo); |
| 367 | #endif /* !HEADLESS */ |
| 368 | } |
| 369 | |
| 370 | /* |
| 371 | * Class: sun_java2d_x11_X11Renderer |
| 372 | * Method: XDrawOval |
| 373 | * Signature: (IJIIII)V |
| 374 | */ |
| 375 | JNIEXPORT void JNICALL Java_sun_java2d_x11_X11Renderer_XDrawOval |
| 376 | (JNIEnv *env, jobject xr, |
| 377 | jlong pXSData, jlong xgc, |
| 378 | jint x, jint y, jint w, jint h) |
| 379 | { |
| 380 | #ifndef HEADLESS |
| 381 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 382 | |
| 383 | if (xsdo == NULL) { |
| 384 | return; |
| 385 | } |
| 386 | |
| 387 | if (w < 2 || h < 2) { |
| 388 | /* |
| 389 | * Fix for 4205762 - 1x1 ovals do not draw on Ultra1, Creator3d |
| 390 | * (related to 4411814 on Windows platform) |
| 391 | * Really small ovals degenerate to simple rectangles as they |
| 392 | * have no curvature or enclosed area. Use XFillRectangle |
| 393 | * for speed and to deal better with degenerate sizes. |
| 394 | */ |
| 395 | if (w >= 0 && h >= 0) { |
| 396 | XFillRectangle(awt_display, xsdo->drawable, (GC) xgc, |
| 397 | x, y, w+1, h+1); |
| 398 | } |
| 399 | } else { |
| 400 | awt_drawArc(env, xsdo->drawable, (GC) xgc, |
| 401 | x, y, w, h, 0, 360, JNI_FALSE); |
| 402 | } |
| 403 | X11SD_DirectRenderNotify(env, xsdo); |
| 404 | #endif /* !HEADLESS */ |
| 405 | } |
| 406 | |
| 407 | /* |
| 408 | * Class: sun_java2d_x11_X11Renderer |
| 409 | * Method: XDrawArc |
| 410 | * Signature: (IJIIIIII)V |
| 411 | */ |
| 412 | JNIEXPORT void JNICALL Java_sun_java2d_x11_X11Renderer_XDrawArc |
| 413 | (JNIEnv *env, jobject xr, |
| 414 | jlong pXSData, jlong xgc, |
| 415 | jint x, jint y, jint w, jint h, |
| 416 | jint angleStart, jint angleExtent) |
| 417 | { |
| 418 | #ifndef HEADLESS |
| 419 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 420 | |
| 421 | if (xsdo == NULL) { |
| 422 | return; |
| 423 | } |
| 424 | |
| 425 | awt_drawArc(env, xsdo->drawable, (GC) xgc, |
| 426 | x, y, w, h, angleStart, angleExtent, JNI_FALSE); |
| 427 | X11SD_DirectRenderNotify(env, xsdo); |
| 428 | #endif /* !HEADLESS */ |
| 429 | } |
| 430 | |
| 431 | /* |
| 432 | * Class: sun_java2d_x11_X11Renderer |
| 433 | * Method: XDrawPoly |
| 434 | * Signature: (IJII[I[IIZ)V |
| 435 | */ |
| 436 | JNIEXPORT void JNICALL Java_sun_java2d_x11_X11Renderer_XDrawPoly |
| 437 | (JNIEnv *env, jobject xr, |
| 438 | jlong pXSData, jlong xgc, |
| 439 | jint transx, jint transy, |
| 440 | jintArray xcoordsArray, jintArray ycoordsArray, jint npoints, |
| 441 | jboolean isclosed) |
| 442 | { |
| 443 | #ifndef HEADLESS |
| 444 | XPoint pTmp[POLYTEMPSIZE], *points; |
| 445 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 446 | |
| 447 | if (xsdo == NULL) { |
| 448 | return; |
| 449 | } |
| 450 | |
| 451 | if (JNU_IsNull(env, xcoordsArray) || JNU_IsNull(env, ycoordsArray)) { |
| 452 | JNU_ThrowNullPointerException(env, "coordinate array"); |
| 453 | return; |
| 454 | } |
| 455 | if ((*env)->GetArrayLength(env, ycoordsArray) < npoints || |
| 456 | (*env)->GetArrayLength(env, xcoordsArray) < npoints) |
| 457 | { |
| 458 | JNU_ThrowArrayIndexOutOfBoundsException(env, "coordinate array"); |
| 459 | return; |
| 460 | } |
| 461 | |
| 462 | if (npoints < 2) { |
| 463 | return; |
| 464 | } |
| 465 | |
| 466 | points = transformPoints(env, xcoordsArray, ycoordsArray, transx, transy, |
| 467 | pTmp, (int *)&npoints, isclosed); |
| 468 | if (points == 0) { |
| 469 | JNU_ThrowOutOfMemoryError(env, "translated coordinate array"); |
| 470 | } else { |
| 471 | if (npoints == 2) { |
| 472 | /* |
| 473 | * Some X11 implementations fail to draw anything for |
| 474 | * simple 2 point polygons where the vertices are the |
| 475 | * same point even though this violates the X11 |
| 476 | * specification. For simplicity we will dispatch all |
| 477 | * 2 point polygons through XDrawLine even if they are |
| 478 | * non-degenerate as this may invoke less processing |
| 479 | * down the line than a Poly primitive anyway. |
| 480 | */ |
| 481 | XDrawLine(awt_display, xsdo->drawable, (GC) xgc, |
| 482 | points[0].x, points[0].y, |
| 483 | points[1].x, points[1].y); |
| 484 | } else { |
| 485 | XDrawLines(awt_display, xsdo->drawable, (GC) xgc, |
| 486 | points, npoints, CoordModeOrigin); |
| 487 | } |
| 488 | if (points != pTmp) { |
| 489 | free(points); |
| 490 | } |
| 491 | X11SD_DirectRenderNotify(env, xsdo); |
| 492 | } |
| 493 | #endif /* !HEADLESS */ |
| 494 | } |
| 495 | |
| 496 | static void storeLine(DrawHandler* hnd, |
| 497 | jint x0, jint y0, jint x1, jint y1) |
| 498 | { |
| 499 | #ifndef HEADLESS |
| 500 | XDrawHandlerData* dhnd = (XDrawHandlerData*)(hnd->pData); |
| 501 | |
| 502 | XDHD_ADD_POINT(dhnd, x0, y0); |
| 503 | XDHD_ADD_POINT(dhnd, x1, y1); |
| 504 | #endif /* !HEADLESS */ |
| 505 | } |
| 506 | |
| 507 | static void storePoint(DrawHandler* hnd, jint x0, jint y0) { |
| 508 | #ifndef HEADLESS |
| 509 | XDrawHandlerData* dhnd = (XDrawHandlerData*)(hnd->pData); |
| 510 | |
| 511 | XDHD_ADD_POINT(dhnd, x0, y0); |
| 512 | #endif /* !HEADLESS */ |
| 513 | } |
| 514 | |
| 515 | static void drawSubPath(ProcessHandler* hnd) { |
| 516 | #ifndef HEADLESS |
| 517 | XDrawHandlerData* dhnd = (XDrawHandlerData*)(hnd->dhnd->pData); |
| 518 | XPoint *points = dhnd->pPoints; |
| 519 | |
| 520 | switch (dhnd->npoints) { |
| 521 | case 0: |
| 522 | /* No-op */ |
| 523 | break; |
| 524 | case 1: |
| 525 | /* Draw the single pixel */ |
| 526 | XFillRectangle(awt_display, dhnd->drawable, dhnd->gc, |
| 527 | points[0].x, points[0].y, 1, 1); |
| 528 | break; |
| 529 | case 2: |
| 530 | /* |
| 531 | * The XDrawLines method for some X11 implementations |
| 532 | * fails to draw anything for simple 2 point polygons |
| 533 | * where the vertices are the same point even though |
| 534 | * this violates the X11 specification. For simplicity |
| 535 | * we will dispatch all 2 point polygons through XDrawLine |
| 536 | * even if they are non-degenerate as this may invoke |
| 537 | * less processing down the line than a poly primitive anyway. |
| 538 | */ |
| 539 | XDrawLine(awt_display, dhnd->drawable, dhnd->gc, |
| 540 | points[0].x, points[0].y, |
| 541 | points[1].x, points[1].y); |
| 542 | break; |
| 543 | default: |
| 544 | /* Draw the entire polyline */ |
| 545 | XDrawLines(awt_display, dhnd->drawable, dhnd->gc, points, |
| 546 | dhnd->npoints, CoordModeOrigin); |
| 547 | break; |
| 548 | } |
| 549 | |
| 550 | XDHD_RESET(dhnd); |
| 551 | #endif /* !HEADLESS */ |
| 552 | } |
| 553 | |
| 554 | static void drawScanline(DrawHandler* hnd, jint x0, jint x1, jint y0) |
| 555 | { |
| 556 | #ifndef HEADLESS |
| 557 | XDrawHandlerData* dhnd = (XDrawHandlerData*)(hnd->pData); |
| 558 | |
| 559 | XDrawLine(awt_display, dhnd->drawable, dhnd->gc, x0, y0, x1, y0); |
| 560 | #endif /* !HEADLESS */ |
| 561 | } |
| 562 | |
| 563 | /* |
| 564 | * Class: sun_java2d_x11_X11Renderer |
| 565 | * Method: XDoPath |
| 566 | * Signature: (Lsun/java2d/SunGraphics2D;JJIILjava/awt/geom/Path2D/Float;Z)V |
| 567 | */ |
| 568 | JNIEXPORT void JNICALL |
| 569 | Java_sun_java2d_x11_X11Renderer_XDoPath |
| 570 | (JNIEnv *env, jobject self, jobject sg2d, jlong pXSData, jlong xgc, |
| 571 | jint transX, jint transY, jobject p2df, jboolean isFill) |
| 572 | { |
| 573 | #ifndef HEADLESS |
| 574 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 575 | jarray typesArray; |
| 576 | jobject pointArray; |
| 577 | jarray coordsArray; |
| 578 | jint numTypes; |
| 579 | jint fillRule; |
| 580 | jint maxCoords; |
| 581 | jbyte *types; |
| 582 | jfloat *coords; |
| 583 | XDrawHandlerData dHData; |
| 584 | DrawHandler drawHandler = { |
| 585 | NULL, NULL, NULL, |
| 586 | MIN_SHORT, MIN_SHORT, MAX_SHORT, MAX_SHORT, |
| 587 | 0, 0, 0, 0, |
| 588 | NULL |
| 589 | }; |
| 590 | PHStroke stroke; |
| 591 | |
| 592 | if (xsdo == NULL) { |
| 593 | return; |
| 594 | } |
| 595 | |
| 596 | if (isFill) { |
| 597 | fillRule = (*env)->GetIntField(env, p2df, path2DWindingRuleID); |
| 598 | } |
| 599 | |
| 600 | typesArray = (jarray)(*env)->GetObjectField(env, p2df, path2DTypesID); |
| 601 | coordsArray = (jarray)(*env)->GetObjectField(env, p2df, |
| 602 | path2DFloatCoordsID); |
| 603 | if (coordsArray == NULL) { |
| 604 | JNU_ThrowNullPointerException(env, "coordinates array"); |
| 605 | return; |
| 606 | } |
| 607 | numTypes = (*env)->GetIntField(env, p2df, path2DNumTypesID); |
| 608 | if ((*env)->GetArrayLength(env, typesArray) < numTypes) { |
| 609 | JNU_ThrowArrayIndexOutOfBoundsException(env, "types array"); |
| 610 | return; |
| 611 | } |
| 612 | |
| 613 | XDHD_INIT(&dHData, (GC)xgc, xsdo->drawable); |
| 614 | drawHandler.pData = &dHData; |
| 615 | |
| 616 | stroke = (((*env)->GetIntField(env, sg2d, sg2dStrokeHintID) == |
| 617 | sunHints_INTVAL_STROKE_PURE) |
| 618 | ? PH_STROKE_PURE |
| 619 | : PH_STROKE_DEFAULT); |
| 620 | |
| 621 | maxCoords = (*env)->GetArrayLength(env, coordsArray); |
| 622 | coords = (jfloat*) |
| 623 | (*env)->GetPrimitiveArrayCritical(env, coordsArray, NULL); |
| 624 | if (coords != NULL) { |
| 625 | types = (jbyte*) |
| 626 | (*env)->GetPrimitiveArrayCritical(env, typesArray, NULL); |
| 627 | if (types != NULL) { |
| 628 | jboolean ok; |
| 629 | |
| 630 | if (isFill) { |
| 631 | drawHandler.pDrawScanline = &drawScanline; |
| 632 | ok = doFillPath(&drawHandler, |
| 633 | transX, transY, |
| 634 | coords, maxCoords, |
| 635 | types, numTypes, |
| 636 | stroke, fillRule); |
| 637 | } else { |
| 638 | drawHandler.pDrawLine = &storeLine; |
| 639 | drawHandler.pDrawPixel = &storePoint; |
| 640 | ok = doDrawPath(&drawHandler, &drawSubPath, |
| 641 | transX, transY, |
| 642 | coords, maxCoords, |
| 643 | types, numTypes, |
| 644 | stroke); |
| 645 | } |
| 646 | if (!ok) { |
| 647 | JNU_ThrowArrayIndexOutOfBoundsException(env, "coords array"); |
| 648 | } |
| 649 | (*env)->ReleasePrimitiveArrayCritical(env, typesArray, types, |
| 650 | JNI_ABORT); |
| 651 | } |
| 652 | (*env)->ReleasePrimitiveArrayCritical(env, coordsArray, coords, |
| 653 | JNI_ABORT); |
| 654 | } |
| 655 | |
| 656 | XDHD_FREE_POINTS(&dHData); |
| 657 | X11SD_DirectRenderNotify(env, xsdo); |
| 658 | #endif /* !HEADLESS */ |
| 659 | } |
| 660 | |
| 661 | /* |
| 662 | * Class: sun_java2d_x11_X11Renderer |
| 663 | * Method: XFillRect |
| 664 | * Signature: (IJIIII)V |
| 665 | */ |
| 666 | JNIEXPORT void JNICALL Java_sun_java2d_x11_X11Renderer_XFillRect |
| 667 | (JNIEnv *env, jobject xr, |
| 668 | jlong pXSData, jlong xgc, |
| 669 | jint x, jint y, jint w, jint h) |
| 670 | { |
| 671 | #ifndef HEADLESS |
| 672 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 673 | |
| 674 | if (xsdo == NULL) { |
| 675 | return; |
| 676 | } |
| 677 | |
| 678 | XFillRectangle(awt_display, xsdo->drawable, (GC) xgc, |
| 679 | CLAMP_TO_SHORT(x), CLAMP_TO_SHORT(y), |
| 680 | CLAMP_TO_USHORT(w), CLAMP_TO_USHORT(h)); |
| 681 | X11SD_DirectRenderNotify(env, xsdo); |
| 682 | #endif /* !HEADLESS */ |
| 683 | } |
| 684 | |
| 685 | /* |
| 686 | * Class: sun_java2d_x11_X11Renderer |
| 687 | * Method: XFillRoundRect |
| 688 | * Signature: (IJIIIIII)V |
| 689 | */ |
| 690 | JNIEXPORT void JNICALL Java_sun_java2d_x11_X11Renderer_XFillRoundRect |
| 691 | (JNIEnv *env, jobject xr, |
| 692 | jlong pXSData, jlong xgc, |
| 693 | jint x, jint y, jint w, jint h, |
| 694 | jint arcW, jint arcH) |
| 695 | { |
| 696 | #ifndef HEADLESS |
| 697 | long ty1, ty2, tx1, tx2, cx, cy, cxw, cyh, |
| 698 | halfW, halfH, leftW, rightW, topH, bottomH; |
| 699 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 700 | |
| 701 | if (xsdo == NULL || w <= 0 || h <= 0) { |
| 702 | return; |
| 703 | } |
| 704 | |
| 705 | arcW = ABS(arcW); |
| 706 | arcH = ABS(arcH); |
| 707 | if (arcW > w) { |
| 708 | arcW = w; |
| 709 | } |
| 710 | if (arcH > h) { |
| 711 | arcH = h; |
| 712 | } |
| 713 | |
| 714 | if (arcW == 0 || arcH == 0) { |
| 715 | Java_sun_java2d_x11_X11Renderer_XFillRect(env, xr, pXSData, xgc, |
| 716 | x, y, w, h); |
| 717 | return; |
| 718 | } |
| 719 | |
| 720 | halfW = (arcW / 2); |
| 721 | halfH = (arcH / 2); |
| 722 | |
| 723 | /* clamp to short bounding box of round rectangle */ |
| 724 | cx = CLAMP_TO_SHORT(x); |
| 725 | cy = CLAMP_TO_SHORT(y); |
| 726 | cxw = CLAMP_TO_SHORT(x + w); |
| 727 | cyh = CLAMP_TO_SHORT(y + h); |
| 728 | |
| 729 | /* clamp to short coordinates of lines */ |
| 730 | tx1 = CLAMP_TO_SHORT(x + halfW + 1); |
| 731 | tx2 = CLAMP_TO_SHORT(x + w - halfW - 1); |
| 732 | ty1 = CLAMP_TO_SHORT(y + halfH + 1); |
| 733 | ty2 = CLAMP_TO_SHORT(y + h - halfH - 1); |
| 734 | |
| 735 | /* |
| 736 | * recalculate heightes and widthes of round parts |
| 737 | * to minimize distortions in visible area |
| 738 | */ |
| 739 | leftW = (tx1 - cx) * 2; |
| 740 | rightW = (cxw - tx2) * 2; |
| 741 | topH = (ty1 - cy) * 2; |
| 742 | bottomH = (cyh - ty2) * 2; |
| 743 | |
| 744 | awt_drawArc(env, xsdo->drawable, (GC) xgc, |
| 745 | cx, cy, leftW, topH, |
| 746 | 90, 90, JNI_TRUE); |
| 747 | awt_drawArc(env, xsdo->drawable, (GC) xgc, |
| 748 | cxw - rightW, cy, rightW, topH, |
| 749 | 0, 90, JNI_TRUE); |
| 750 | awt_drawArc(env, xsdo->drawable, (GC) xgc, |
| 751 | cx, cyh - bottomH, leftW, bottomH, |
| 752 | 180, 90, JNI_TRUE); |
| 753 | awt_drawArc(env, xsdo->drawable, (GC) xgc, |
| 754 | cxw - rightW, cyh - bottomH, rightW, bottomH, |
| 755 | 270, 90, JNI_TRUE); |
| 756 | |
| 757 | if (tx1 < tx2) { |
| 758 | if (cy < ty1) { |
| 759 | XFillRectangle(awt_display, xsdo->drawable, (GC) xgc, |
| 760 | tx1, cy, tx2 - tx1, ty1 - cy); |
| 761 | } |
| 762 | if (ty2 < cyh) { |
| 763 | XFillRectangle(awt_display, xsdo->drawable, (GC) xgc, |
| 764 | tx1, ty2, tx2 - tx1, cyh - ty2); |
| 765 | } |
| 766 | } |
| 767 | if (ty1 < ty2) { |
| 768 | XFillRectangle(awt_display, xsdo->drawable, (GC) xgc, |
| 769 | cx, ty1, cxw - cx, ty2 - ty1); |
| 770 | } |
| 771 | X11SD_DirectRenderNotify(env, xsdo); |
| 772 | #endif /* !HEADLESS */ |
| 773 | } |
| 774 | |
| 775 | /* |
| 776 | * Class: sun_java2d_x11_X11Renderer |
| 777 | * Method: XFillOval |
| 778 | * Signature: (IJIIII)V |
| 779 | */ |
| 780 | JNIEXPORT void JNICALL Java_sun_java2d_x11_X11Renderer_XFillOval |
| 781 | (JNIEnv *env, jobject xr, |
| 782 | jlong pXSData, jlong xgc, |
| 783 | jint x, jint y, jint w, jint h) |
| 784 | { |
| 785 | #ifndef HEADLESS |
| 786 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 787 | |
| 788 | if (xsdo == NULL) { |
| 789 | return; |
| 790 | } |
| 791 | |
| 792 | if (w < 3 || h < 3) { |
| 793 | /* |
| 794 | * Fix for 4205762 - 1x1 ovals do not draw on Ultra1, Creator3d |
| 795 | * (related to 4411814 on Windows platform) |
| 796 | * Most X11 servers drivers have poor rendering |
| 797 | * for thin ellipses and the rendering is most strikingly |
| 798 | * different from our theoretical arcs. Ideally we should |
| 799 | * trap all ovals less than some fairly large size and |
| 800 | * try to draw aesthetically pleasing ellipses, but that |
| 801 | * would require considerably more work to get the corresponding |
| 802 | * drawArc variants to match pixel for pixel. |
| 803 | * Thin ovals of girth 1 pixel are simple rectangles. |
| 804 | * Thin ovals of girth 2 pixels are simple rectangles with |
| 805 | * potentially smaller lengths. Determine the correct length |
| 806 | * by calculating .5*.5 + scaledlen*scaledlen == 1.0 which |
| 807 | * means that scaledlen is the sqrt(0.75). Scaledlen is |
| 808 | * relative to the true length (w or h) and needs to be |
| 809 | * adjusted by half a pixel in different ways for odd or |
| 810 | * even lengths. |
| 811 | */ |
| 812 | #define SQRT_3_4 0.86602540378443864676 |
| 813 | if (w > 2 && h > 1) { |
| 814 | int adjw = (int) ((SQRT_3_4 * w - ((w&1)-1)) * 0.5); |
| 815 | adjw = adjw * 2 + (w&1); |
| 816 | x += (w-adjw)/2; |
| 817 | w = adjw; |
| 818 | } else if (h > 2 && w > 1) { |
| 819 | int adjh = (int) ((SQRT_3_4 * h - ((h&1)-1)) * 0.5); |
| 820 | adjh = adjh * 2 + (h&1); |
| 821 | y += (h-adjh)/2; |
| 822 | h = adjh; |
| 823 | } |
| 824 | #undef SQRT_3_4 |
| 825 | if (w > 0 && h > 0) { |
| 826 | XFillRectangle(awt_display, xsdo->drawable, (GC) xgc, x, y, w, h); |
| 827 | } |
| 828 | } else { |
| 829 | awt_drawArc(env, xsdo->drawable, (GC) xgc, |
| 830 | x, y, w, h, 0, 360, JNI_TRUE); |
| 831 | } |
| 832 | X11SD_DirectRenderNotify(env, xsdo); |
| 833 | #endif /* !HEADLESS */ |
| 834 | } |
| 835 | |
| 836 | /* |
| 837 | * Class: sun_java2d_x11_X11Renderer |
| 838 | * Method: XFillArc |
| 839 | * Signature: (IJIIIIII)V |
| 840 | */ |
| 841 | JNIEXPORT void JNICALL Java_sun_java2d_x11_X11Renderer_XFillArc |
| 842 | (JNIEnv *env, jobject xr, |
| 843 | jlong pXSData, jlong xgc, |
| 844 | jint x, jint y, jint w, jint h, |
| 845 | jint angleStart, jint angleExtent) |
| 846 | { |
| 847 | #ifndef HEADLESS |
| 848 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 849 | |
| 850 | if (xsdo == NULL) { |
| 851 | return; |
| 852 | } |
| 853 | |
| 854 | awt_drawArc(env, xsdo->drawable, (GC) xgc, |
| 855 | x, y, w, h, angleStart, angleExtent, JNI_TRUE); |
| 856 | X11SD_DirectRenderNotify(env, xsdo); |
| 857 | #endif /* !HEADLESS */ |
| 858 | } |
| 859 | |
| 860 | /* |
| 861 | * Class: sun_java2d_x11_X11Renderer |
| 862 | * Method: XFillPoly |
| 863 | * Signature: (IJII[I[II)V |
| 864 | */ |
| 865 | JNIEXPORT void JNICALL Java_sun_java2d_x11_X11Renderer_XFillPoly |
| 866 | (JNIEnv *env, jobject xr, |
| 867 | jlong pXSData, jlong xgc, |
| 868 | jint transx, jint transy, |
| 869 | jintArray xcoordsArray, jintArray ycoordsArray, jint npoints) |
| 870 | { |
| 871 | #ifndef HEADLESS |
| 872 | XPoint pTmp[POLYTEMPSIZE], *points; |
| 873 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 874 | |
| 875 | if (xsdo == NULL) { |
| 876 | return; |
| 877 | } |
| 878 | |
| 879 | if (JNU_IsNull(env, xcoordsArray) || JNU_IsNull(env, ycoordsArray)) { |
| 880 | JNU_ThrowNullPointerException(env, "coordinate array"); |
| 881 | return; |
| 882 | } |
| 883 | if ((*env)->GetArrayLength(env, ycoordsArray) < npoints || |
| 884 | (*env)->GetArrayLength(env, xcoordsArray) < npoints) |
| 885 | { |
| 886 | JNU_ThrowArrayIndexOutOfBoundsException(env, "coordinate array"); |
| 887 | return; |
| 888 | } |
| 889 | |
| 890 | if (npoints < 3) { |
| 891 | return; |
| 892 | } |
| 893 | |
| 894 | points = transformPoints(env, xcoordsArray, ycoordsArray, transx, transy, |
| 895 | pTmp, (int *)&npoints, JNI_FALSE); |
| 896 | if (points == 0) { |
| 897 | JNU_ThrowOutOfMemoryError(env, "translated coordinate array"); |
| 898 | } else { |
| 899 | if (npoints > 2) { |
| 900 | XFillPolygon(awt_display, xsdo->drawable, (GC) xgc, |
| 901 | points, npoints, Complex, CoordModeOrigin); |
| 902 | X11SD_DirectRenderNotify(env, xsdo); |
| 903 | } |
| 904 | if (points != pTmp) { |
| 905 | free(points); |
| 906 | } |
| 907 | } |
| 908 | #endif /* !HEADLESS */ |
| 909 | } |
| 910 | |
| 911 | /* |
| 912 | * Class: sun_java2d_x11_X11Renderer |
| 913 | * Method: XFillSpans |
| 914 | * Signature: (IJLsun/java2d/pipe/SpanIterator;JII)V |
| 915 | */ |
| 916 | JNIEXPORT void JNICALL Java_sun_java2d_x11_X11Renderer_XFillSpans |
| 917 | (JNIEnv *env, jobject xr, |
| 918 | jlong pXSData, jlong xgc, |
| 919 | jobject si, jlong pIterator, |
| 920 | jint transx, jint transy) |
| 921 | { |
| 922 | #ifndef HEADLESS |
| 923 | SpanIteratorFuncs *pFuncs = (SpanIteratorFuncs *) jlong_to_ptr(pIterator); |
| 924 | void *srData; |
| 925 | jint x, y, w, h; |
| 926 | jint spanbox[4]; |
| 927 | X11SDOps *xsdo = (X11SDOps *) pXSData; |
| 928 | |
| 929 | if (xsdo == NULL) { |
| 930 | return; |
| 931 | } |
| 932 | |
| 933 | if (JNU_IsNull(env, si)) { |
| 934 | JNU_ThrowNullPointerException(env, "span iterator"); |
| 935 | return; |
| 936 | } |
| 937 | if (pFuncs == NULL) { |
| 938 | JNU_ThrowNullPointerException(env, "native iterator not supplied"); |
| 939 | return; |
| 940 | } |
| 941 | |
| 942 | srData = (*pFuncs->open)(env, si); |
| 943 | while ((*pFuncs->nextSpan)(srData, spanbox)) { |
| 944 | x = spanbox[0] + transx; |
| 945 | y = spanbox[1] + transy; |
| 946 | w = spanbox[2] - spanbox[0]; |
| 947 | h = spanbox[3] - spanbox[1]; |
| 948 | XFillRectangle(awt_display, xsdo->drawable, (GC) xgc, |
| 949 | CLAMP_TO_SHORT(x), CLAMP_TO_SHORT(y), |
| 950 | CLAMP_TO_USHORT(w), CLAMP_TO_USHORT(h)); |
| 951 | } |
| 952 | (*pFuncs->close)(env, srData); |
| 953 | X11SD_DirectRenderNotify(env, xsdo); |
| 954 | #endif /* !HEADLESS */ |
| 955 | } |
| 956 | |
| 957 | /* |
| 958 | * Class: sun_java2d_x11_X11Renderer |
| 959 | * Method: devCopyArea |
| 960 | * Signature: (Lsun/java2d/SurfaceData;IIIIII)V |
| 961 | */ |
| 962 | JNIEXPORT void JNICALL |
| 963 | Java_sun_java2d_x11_X11Renderer_devCopyArea |
| 964 | (JNIEnv *env, jobject xr, |
| 965 | jlong xsd, jlong gc, |
| 966 | jint srcx, jint srcy, |
| 967 | jint dstx, jint dsty, |
| 968 | jint width, jint height) |
| 969 | { |
| 970 | #ifndef HEADLESS |
| 971 | X11SDOps *xsdo; |
| 972 | GC xgc; |
| 973 | |
| 974 | xsdo = (X11SDOps *)jlong_to_ptr(xsd); |
| 975 | if (xsdo == NULL) { |
| 976 | return; |
| 977 | } |
| 978 | |
| 979 | xgc = (GC)gc; |
| 980 | if (xgc == NULL) { |
| 981 | return; |
| 982 | } |
| 983 | |
| 984 | XCopyArea(awt_display, xsdo->drawable, xsdo->drawable, xgc, |
| 985 | srcx, srcy, width, height, dstx, dsty); |
| 986 | |
| 987 | X11SD_DirectRenderNotify(env, xsdo); |
| 988 | #endif /* !HEADLESS */ |
| 989 | } |