1 /*
2 * Copyright (c) 1999, 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 #include "X11SurfaceData.h"
27 #include "GraphicsPrimitiveMgr.h"
28 #include "Region.h"
29 #include "Trace.h"
30
31 /* Needed to define intptr_t */
32 #include "gdefs.h"
33
34 #include "jni_util.h"
35 #include "jvm_md.h"
36 #include "awt_Component.h"
37 #include "awt_GraphicsEnv.h"
38
39 #include <dlfcn.h>
40
41 #ifndef HEADLESS
42
43 /**
44 * This file contains support code for loops using the SurfaceData
45 * interface to talk to an X11 drawable from native code.
46 */
47
48 typedef struct _X11RIPrivate {
49 jint lockType;
50 jint lockFlags;
51 XImage *img;
52 int x, y;
53 } X11RIPrivate;
54
55 #define XSD_MAX(a,b) ((a) > (b) ? (a) : (b))
56 #define XSD_MIN(a,b) ((a) < (b) ? (a) : (b))
57
58 static LockFunc X11SD_Lock;
59 static GetRasInfoFunc X11SD_GetRasInfo;
60 static UnlockFunc X11SD_Unlock;
61 static DisposeFunc X11SD_Dispose;
62 static GetPixmapBgFunc X11SD_GetPixmapWithBg;
63 static ReleasePixmapBgFunc X11SD_ReleasePixmapWithBg;
64 extern int XShmAttachXErrHandler(Display *display, XErrorEvent *xerr);
65 extern AwtGraphicsConfigDataPtr
66 getGraphicsConfigFromComponentPeer(JNIEnv *env, jobject this);
67 extern struct X11GraphicsConfigIDs x11GraphicsConfigIDs;
68
69 static int X11SD_FindClip(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
70 X11SDOps *xsdo);
71 static int X11SD_ClipToRoot(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
72 X11SDOps *xsdo);
73 static void X11SD_SwapBytes(X11SDOps *xsdo, XImage *img, int depth, int bpp);
74 static XImage * X11SD_GetImage(JNIEnv *env, X11SDOps *xsdo,
75 SurfaceDataBounds *bounds,
76 jint lockFlags);
77
78 extern jfieldID validID;
79
80 static int nativeByteOrder;
81 static jclass xorCompClass;
82
83 jint useMitShmExt = CANT_USE_MITSHM;
84 jint useMitShmPixmaps = CANT_USE_MITSHM;
85 jint forceSharedPixmaps = JNI_FALSE;
86 int mitShmPermissionMask = MITSHM_PERM_OWNER;
87
88 /* Cached shared image, one for all surface datas. */
89 static XImage * cachedXImage;
90
91 #endif /* !HEADLESS */
92
93 jboolean XShared_initIDs(JNIEnv *env, jboolean allowShmPixmaps)
94 {
95 #ifndef HEADLESS
96 union {
97 char c[4];
98 int i;
99 } endian;
100
101 endian.i = 0xff000000;
102 nativeByteOrder = (endian.c[0]) ? MSBFirst : LSBFirst;
103
104 cachedXImage = NULL;
105
106 if (sizeof(X11RIPrivate) > SD_RASINFO_PRIVATE_SIZE) {
107 JNU_ThrowInternalError(env, "Private RasInfo structure too large!");
108 return JNI_FALSE;
109 }
110
111 #ifdef MITSHM
112 if (getenv("NO_AWT_MITSHM") == NULL &&
113 getenv("NO_J2D_MITSHM") == NULL) {
114 char * force;
115 char * permission = getenv("J2D_MITSHM_PERMISSION");
116 if (permission != NULL) {
117 if (strcmp(permission, "common") == 0) {
118 mitShmPermissionMask = MITSHM_PERM_COMMON;
119 }
120 }
121
122 TryInitMITShm(env, &useMitShmExt, &useMitShmPixmaps);
123
124 if(allowShmPixmaps) {
125 useMitShmPixmaps = (useMitShmPixmaps == CAN_USE_MITSHM);
126 force = getenv("J2D_PIXMAPS");
127 if (force != NULL) {
128 if (useMitShmPixmaps && (strcmp(force, "shared") == 0)) {
129 forceSharedPixmaps = JNI_TRUE;
130 } else if (strcmp(force, "server") == 0) {
131 useMitShmPixmaps = JNI_FALSE;
132 }
133 }
134 }else {
135 useMitShmPixmaps = JNI_FALSE;
136 }
137 }
138 #endif /* MITSHM */
139
140 #endif /* !HEADLESS */
141
142 return JNI_TRUE;
143 }
144
145
146 /*
147 * Class: sun_java2d_x11_X11SurfaceData
148 * Method: initIDs
149 * Signature: (Ljava/lang/Class;Z)V
150 */
151 JNIEXPORT void JNICALL
152 Java_sun_java2d_x11_X11SurfaceData_initIDs(JNIEnv *env, jclass xsd,
153 jclass XORComp)
154 {
155 #ifndef HEADLESS
156 if(XShared_initIDs(env, JNI_TRUE))
157 {
158 xorCompClass = (*env)->NewGlobalRef(env, XORComp);
159 }
160 #endif /* !HEADLESS */
161 }
162
163 /*
164 * Class: sun_java2d_x11_X11SurfaceData
165 * Method: isDrawableValid
166 * Signature: ()Z
167 */
168 JNIEXPORT jboolean JNICALL
169 Java_sun_java2d_x11_XSurfaceData_isDrawableValid(JNIEnv *env, jobject this)
170 {
171 jboolean ret = JNI_FALSE;
172
173 #ifndef HEADLESS
174 X11SDOps *xsdo = X11SurfaceData_GetOps(env, this);
175
176 AWT_LOCK();
177 if (xsdo->drawable != 0 || X11SD_InitWindow(env, xsdo) == SD_SUCCESS) {
178 ret = JNI_TRUE;
179 }
180 AWT_UNLOCK();
181 #endif /* !HEADLESS */
182
183 return ret;
184 }
185
186 /*
187 * Class: sun_java2d_x11_X11SurfaceData
188 * Method: isShmPMAvailable
189 * Signature: ()Z
190 */
191 JNIEXPORT jboolean JNICALL
192 Java_sun_java2d_x11_X11SurfaceData_isShmPMAvailable(JNIEnv *env, jobject this)
193 {
194 #if defined(HEADLESS) || !defined(MITSHM)
195 return JNI_FALSE;
196 #else
197 return (jboolean)useMitShmPixmaps;
198 #endif /* HEADLESS, MITSHM */
199 }
200
201 /*
202 * Class: sun_java2d_x11_X11SurfaceData
203 * Method: initOps
204 * Signature: (Ljava/lang/Object;I)V
205 */
206 JNIEXPORT void JNICALL
207 Java_sun_java2d_x11_XSurfaceData_initOps(JNIEnv *env, jobject xsd,
208 jobject peer,
209 jobject graphicsConfig, jint depth)
210 {
211 #ifndef HEADLESS
212 X11SDOps *xsdo = (X11SDOps*)SurfaceData_InitOps(env, xsd, sizeof(X11SDOps));
213 jboolean hasException;
214 if (xsdo == NULL) {
215 JNU_ThrowOutOfMemoryError(env, "Initialization of SurfaceData failed.");
216 return;
217 }
218 xsdo->sdOps.Lock = X11SD_Lock;
219 xsdo->sdOps.GetRasInfo = X11SD_GetRasInfo;
220 xsdo->sdOps.Unlock = X11SD_Unlock;
221 xsdo->sdOps.Dispose = X11SD_Dispose;
222 xsdo->GetPixmapWithBg = X11SD_GetPixmapWithBg;
223 xsdo->ReleasePixmapWithBg = X11SD_ReleasePixmapWithBg;
224 if (peer != NULL) {
225 xsdo->drawable = JNU_CallMethodByName(env, &hasException, peer, "getWindow", "()J").j;
226 if (hasException) {
227 return;
228 }
229 } else {
230 xsdo->drawable = 0;
231 }
232 xsdo->depth = depth;
233 xsdo->isPixmap = JNI_FALSE;
234 xsdo->bitmask = 0;
235 xsdo->bgPixel = 0;
236 xsdo->isBgInitialized = JNI_FALSE;
237 #ifdef MITSHM
238 xsdo->shmPMData.shmSegInfo = NULL;
239 xsdo->shmPMData.xRequestSent = JNI_FALSE;
240 xsdo->shmPMData.pmSize = 0;
241 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
242 xsdo->shmPMData.pixmap = 0;
243 xsdo->shmPMData.shmPixmap = 0;
244 xsdo->shmPMData.numBltsSinceRead = 0;
245 xsdo->shmPMData.pixelsReadSinceBlt = 0;
246 xsdo->shmPMData.numBltsThreshold = 2;
247 #endif /* MITSHM */
248
249 xsdo->configData = (AwtGraphicsConfigDataPtr)
250 JNU_GetLongFieldAsPtr(env,
251 graphicsConfig,
252 x11GraphicsConfigIDs.aData);
253 if (xsdo->configData == NULL) {
254 JNU_ThrowNullPointerException(env,
255 "Native GraphicsConfig data block missing");
256 return;
257 }
258 if (depth > 12) {
259 xsdo->pixelmask = (xsdo->configData->awt_visInfo.red_mask |
260 xsdo->configData->awt_visInfo.green_mask |
261 xsdo->configData->awt_visInfo.blue_mask);
262 } else if (depth == 12) {
263 xsdo->pixelmask = 0xfff;
264 } else {
265 xsdo->pixelmask = 0xff;
266 }
267
268 xsdo->xrPic = None;
269 #endif /* !HEADLESS */
270 }
271
272 /*
273 * Class: sun_java2d_x11_X11SurfaceData
274 * Method: flushNativeSurface
275 * Signature: ()V
276 */
277 JNIEXPORT void JNICALL
278 Java_sun_java2d_x11_XSurfaceData_flushNativeSurface(JNIEnv *env, jobject xsd)
279 {
280 #ifndef HEADLESS
281 SurfaceDataOps *ops = SurfaceData_GetOps(env, xsd);
282
283 if (ops != NULL) {
284 X11SD_Dispose(env, ops);
285 }
286 #endif /* !HEADLESS */
287 }
288
289
290 JNIEXPORT X11SDOps * JNICALL
291 X11SurfaceData_GetOps(JNIEnv *env, jobject sData)
292 {
293 #ifdef HEADLESS
294 return NULL;
295 #else
296 SurfaceDataOps *ops = SurfaceData_GetOps(env, sData);
297 if (ops != NULL && ops->Lock != X11SD_Lock) {
298 SurfaceData_ThrowInvalidPipeException(env, "not an X11 SurfaceData");
299 ops = NULL;
300 }
301 return (X11SDOps *) ops;
302 #endif /* !HEADLESS */
303 }
304
305 /*
306 * Method for disposing X11SD-specific data
307 */
308 static void
309 X11SD_Dispose(JNIEnv *env, SurfaceDataOps *ops)
310 {
311 #ifndef HEADLESS
312 /* ops is assumed non-null as it is checked in SurfaceData_DisposeOps */
313 X11SDOps * xsdo = (X11SDOps*)ops;
314
315 AWT_LOCK();
316
317 xsdo->invalid = JNI_TRUE;
318
319 if (xsdo->xrPic != None) {
320 XRenderFreePicture(awt_display, xsdo->xrPic);
321 xsdo->xrPic = None;
322 }
323
324 if (xsdo->isPixmap == JNI_TRUE && xsdo->drawable != 0) {
325 #ifdef MITSHM
326 if (xsdo->shmPMData.shmSegInfo != NULL) {
327 X11SD_DropSharedSegment(xsdo->shmPMData.shmSegInfo);
328 xsdo->shmPMData.shmSegInfo = NULL;
329 }
330 if (xsdo->shmPMData.pixmap) {
331 XFreePixmap(awt_display, xsdo->shmPMData.pixmap);
332 xsdo->shmPMData.pixmap = 0;
333 }
334 if (xsdo->shmPMData.shmPixmap) {
335 XFreePixmap(awt_display, xsdo->shmPMData.shmPixmap);
336 xsdo->shmPMData.shmPixmap = 0;
337 }
338 #else
339 XFreePixmap(awt_display, xsdo->drawable);
340 #endif /* MITSHM */
341 xsdo->drawable = 0;
342 }
343 if (xsdo->bitmask != 0) {
344 XFreePixmap(awt_display, xsdo->bitmask);
345 xsdo->bitmask = 0;
346 }
347 if (xsdo->javaGC != NULL) {
348 XFreeGC(awt_display, xsdo->javaGC);
349 xsdo->javaGC = NULL;
350 }
351 if (xsdo->cachedGC != NULL) {
352 XFreeGC(awt_display, xsdo->cachedGC);
353 xsdo->cachedGC = NULL;
354 }
355
356 if(xsdo->xrPic != None) {
357 XRenderFreePicture(awt_display, xsdo->xrPic);
358 }
359
360 AWT_UNLOCK();
361 #endif /* !HEADLESS */
362 }
363 /*
364 * Class: sun_java2d_x11_X11SurfaceData
365 * Method: setInvalid
366 * Signature: ()V
367 */
368 JNIEXPORT void JNICALL
369 Java_sun_java2d_x11_XSurfaceData_setInvalid(JNIEnv *env, jobject xsd)
370 {
371 #ifndef HEADLESS
372 X11SDOps *xsdo = (X11SDOps *) SurfaceData_GetOps(env, xsd);
373
374 if (xsdo != NULL) {
375 xsdo->invalid = JNI_TRUE;
376 }
377 #endif /* !HEADLESS */
378 }
379
380
381 jboolean XShared_initSurface(JNIEnv *env, X11SDOps *xsdo, jint depth, jint width, jint height, jlong drawable)
382 {
383 #ifndef HEADLESS
384
385 if (drawable != (jlong)0) {
386 /* Double-buffering */
387 xsdo->drawable = drawable;
388 xsdo->isPixmap = JNI_FALSE;
389 } else {
390 /*
391 * width , height must be nonzero otherwise XCreatePixmap
392 * generates BadValue in error_handler
393 */
394 if (width <= 0 || height <= 0 || width > 32767 || height > 32767) {
395 JNU_ThrowOutOfMemoryError(env,
396 "Can't create offscreen surface");
397 return JNI_FALSE;
398 }
399 xsdo->isPixmap = JNI_TRUE;
400
401 xsdo->pmWidth = width;
402 xsdo->pmHeight = height;
403
404 #ifdef MITSHM
405 xsdo->shmPMData.pmSize = width * height * depth;
406 xsdo->shmPMData.pixelsReadThreshold = width * height / 8;
407 if (forceSharedPixmaps) {
408 AWT_LOCK();
409 xsdo->drawable = X11SD_CreateSharedPixmap(xsdo);
410 AWT_UNLOCK();
411 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE);
412 if (xsdo->drawable) {
413 xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
414 xsdo->shmPMData.shmPixmap = xsdo->drawable;
415 return JNI_TRUE;
416 }
417 }
418 #endif /* MITSHM */
419
420 AWT_LOCK();
421 xsdo->drawable =
422 XCreatePixmap(awt_display,
423 RootWindow(awt_display,
424 xsdo->configData->awt_visInfo.screen),
425 width, height, depth);
426 AWT_UNLOCK();
427 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE);
428 #ifdef MITSHM
429 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
430 xsdo->shmPMData.pixmap = xsdo->drawable;
431 #endif /* MITSHM */
432 }
433 if (xsdo->drawable == 0) {
434 JNU_ThrowOutOfMemoryError(env,
435 "Can't create offscreen surface");
436 return JNI_FALSE;
437 }
438
439 #endif /* !HEADLESS */
440 return JNI_TRUE;
441 }
442
443
444 /*
445 * Class: sun_java2d_x11_X11SurfaceData
446 * Method: initSurface
447 * Signature: ()V
448 */
449 JNIEXPORT void JNICALL
450 Java_sun_java2d_x11_X11SurfaceData_initSurface(JNIEnv *env, jclass xsd,
451 jint depth,
452 jint width, jint height,
453 jlong drawable)
454 {
455 #ifndef HEADLESS
456 X11SDOps *xsdo = X11SurfaceData_GetOps(env, xsd);
457 if (xsdo == NULL) {
458 return;
459 }
460
461 if (xsdo->configData->awt_cmap == (Colormap)NULL) {
462 awtJNI_CreateColorData(env, xsdo->configData, 1);
463 JNU_CHECK_EXCEPTION(env);
464 }
465 /* color_data will be initialized in awtJNI_CreateColorData for
466 8-bit visuals */
467 xsdo->cData = xsdo->configData->color_data;
468
469 XShared_initSurface(env, xsdo, depth, width, height, drawable);
470 xsdo->xrPic = None;
471 #endif /* !HEADLESS */
472 }
473
474 #ifndef HEADLESS
475
476 #ifdef MITSHM
477
478 void X11SD_DropSharedSegment(XShmSegmentInfo *shminfo)
479 {
480 if (shminfo != NULL) {
481 XShmDetach(awt_display, shminfo);
482 shmdt(shminfo->shmaddr);
483 /* REMIND: we don't need shmctl(shminfo->shmid, IPC_RMID, 0); here. */
484 /* Check X11SD_CreateSharedImage() for the explanation */
485 }
486 }
487
488 XImage* X11SD_CreateSharedImage(X11SDOps *xsdo,
489 jint width, jint height)
490 {
491 XImage *img = NULL;
492 XShmSegmentInfo *shminfo;
493
494 shminfo = malloc(sizeof(XShmSegmentInfo));
495 if (shminfo == NULL) {
496 return NULL;
497 }
498 memset(shminfo, 0, sizeof(XShmSegmentInfo));
499
500 img = XShmCreateImage(awt_display, xsdo->configData->awt_visInfo.visual,
501 xsdo->depth, ZPixmap, NULL, shminfo,
502 width, height);
503 if (img == NULL) {
504 free((void *)shminfo);
505 return NULL;
506 }
507 shminfo->shmid =
508 shmget(IPC_PRIVATE, height * img->bytes_per_line,
509 IPC_CREAT|mitShmPermissionMask);
510 if (shminfo->shmid < 0) {
511 J2dRlsTraceLn1(J2D_TRACE_ERROR,
512 "X11SD_SetupSharedSegment shmget has failed: %s",
513 strerror(errno));
514 free((void *)shminfo);
515 XDestroyImage(img);
516 return NULL;
517 }
518
519 shminfo->shmaddr = (char *) shmat(shminfo->shmid, 0, 0);
520 if (shminfo->shmaddr == ((char *) -1)) {
521 shmctl(shminfo->shmid, IPC_RMID, 0);
522 J2dRlsTraceLn1(J2D_TRACE_ERROR,
523 "X11SD_SetupSharedSegment shmat has failed: %s",
524 strerror(errno));
525 free((void *)shminfo);
526 XDestroyImage(img);
527 return NULL;
528 }
529
530 shminfo->readOnly = False;
531
532 resetXShmAttachFailed();
533 EXEC_WITH_XERROR_HANDLER(XShmAttachXErrHandler,
534 XShmAttach(awt_display, shminfo));
535
536 /*
537 * Once the XSync round trip has finished then we
538 * can get rid of the id so that this segment does not stick
539 * around after we go away, holding system resources.
540 */
541 shmctl(shminfo->shmid, IPC_RMID, 0);
542
543 if (isXShmAttachFailed() == JNI_TRUE) {
544 J2dRlsTraceLn1(J2D_TRACE_ERROR,
545 "X11SD_SetupSharedSegment XShmAttach has failed: %s",
546 strerror(errno));
547 shmdt(shminfo->shmaddr);
548 free((void *)shminfo);
549 XDestroyImage(img);
550 return NULL;
551 }
552
553 img->data = shminfo->shmaddr;
554 img->obdata = (char *)shminfo;
555
556 return img;
557 }
558
559 XImage* X11SD_GetSharedImage(X11SDOps *xsdo, jint width, jint height,
560 jint maxWidth, jint maxHeight, jboolean readBits)
561 {
562 XImage * retImage = NULL;
563 if (cachedXImage != NULL &&
564 X11SD_CachedXImageFits(width, height, maxWidth, maxHeight,
565 xsdo->depth, readBits)) {
566 /* sync so previous data gets flushed */
567 XSync(awt_display, False);
568 retImage = cachedXImage;
569 cachedXImage = (XImage *)NULL;
570 } else if (width * height * xsdo->depth > 0x10000) {
571 retImage = X11SD_CreateSharedImage(xsdo, width, height);
572 }
573 return retImage;
574 }
575
576 Drawable X11SD_CreateSharedPixmap(X11SDOps *xsdo)
577 {
578 XShmSegmentInfo *shminfo;
579 XImage *img = NULL;
580 Drawable pixmap;
581 int scan;
582 int width = xsdo->pmWidth;
583 int height = xsdo->pmHeight;
584
585 if (xsdo->shmPMData.pmSize < 0x10000) {
586 /* only use shared mem pixmaps for relatively big images */
587 return 0;
588 }
589
590 /* need to create shared(!) image to get bytes_per_line */
591 img = X11SD_CreateSharedImage(xsdo, width, height);
592 if (img == NULL) {
593 return 0;
594 }
595 scan = img->bytes_per_line;
596 shminfo = (XShmSegmentInfo*)img->obdata;
597 XFree(img);
598
599 pixmap =
600 XShmCreatePixmap(awt_display,
601 RootWindow(awt_display,
602 xsdo->configData->awt_visInfo.screen),
603 shminfo->shmaddr, shminfo,
604 width, height, xsdo->depth);
605 if (pixmap == 0) {
606 X11SD_DropSharedSegment(shminfo);
607 return 0;
608 }
609
610 xsdo->shmPMData.shmSegInfo = shminfo;
611 xsdo->shmPMData.bytesPerLine = scan;
612 return pixmap;
613 }
614
615 void X11SD_PuntPixmap(X11SDOps *xsdo, jint width, jint height)
616 {
617
618 if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
619 return;
620 }
621
622 /* we wouldn't be here if it's a shared pixmap, so no check
623 * for !usingShmPixmap.
624 */
625
626 xsdo->shmPMData.numBltsSinceRead = 0;
627
628 xsdo->shmPMData.pixelsReadSinceBlt += width * height;
629 if (xsdo->shmPMData.pixelsReadSinceBlt >
630 xsdo->shmPMData.pixelsReadThreshold) {
631 if (!xsdo->shmPMData.shmPixmap) {
632 xsdo->shmPMData.shmPixmap =
633 X11SD_CreateSharedPixmap(xsdo);
634 }
635 if (xsdo->shmPMData.shmPixmap) {
636 GC xgc = XCreateGC(awt_display, xsdo->shmPMData.shmPixmap, 0L, NULL);
637 if (xgc != NULL) {
638 xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
639 xsdo->drawable = xsdo->shmPMData.shmPixmap;
640 XCopyArea(awt_display,
641 xsdo->shmPMData.pixmap, xsdo->drawable, xgc,
642 0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
643 XSync(awt_display, False);
644 xsdo->shmPMData.xRequestSent = JNI_FALSE;
645 XFreeGC(awt_display, xgc);
646 }
647 }
648 }
649 }
650
651 void X11SD_UnPuntPixmap(X11SDOps *xsdo)
652 {
653 if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
654 return;
655 }
656 xsdo->shmPMData.pixelsReadSinceBlt = 0;
657 if (xsdo->shmPMData.numBltsSinceRead >=
658 xsdo->shmPMData.numBltsThreshold)
659 {
660 if (xsdo->shmPMData.usingShmPixmap) {
661 if (!xsdo->shmPMData.pixmap) {
662 xsdo->shmPMData.pixmap =
663 XCreatePixmap(awt_display,
664 RootWindow(awt_display,
665 xsdo->configData->awt_visInfo.screen),
666 xsdo->pmWidth, xsdo->pmHeight, xsdo->depth);
667 }
668 if (xsdo->shmPMData.pixmap) {
669 GC xgc = XCreateGC(awt_display, xsdo->shmPMData.pixmap, 0L, NULL);
670 if (xgc != NULL) {
671 xsdo->drawable = xsdo->shmPMData.pixmap;
672 XCopyArea(awt_display,
673 xsdo->shmPMData.shmPixmap, xsdo->drawable, xgc,
674 0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
675 XSync(awt_display, False);
676 XFreeGC(awt_display, xgc);
677 xsdo->shmPMData.xRequestSent = JNI_FALSE;
678 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
679 xsdo->shmPMData.numBltsThreshold *= 2;
680 }
681 }
682 }
683 } else {
684 xsdo->shmPMData.numBltsSinceRead++;
685 }
686 }
687
688 /**
689 * Determines if the cached image can be used for current operation.
690 * If the image is to be used to be read into by XShmGetImage,
691 * it must be close enough to avoid excessive reading from the screen;
692 * otherwise it should just be at least the size requested.
693 */
694 jboolean X11SD_CachedXImageFits(jint width, jint height, jint maxWidth,
695 jint maxHeight, jint depth, jboolean readBits)
696 {
697 /* we assume here that the cached image exists */
698 jint imgWidth = cachedXImage->width;
699 jint imgHeight = cachedXImage->height;
700
701 if (imgWidth < width || imgHeight < height || depth != cachedXImage->depth) {
702 /* doesn't fit if any of the cached image dimensions is smaller
703 or the depths are different */
704 return JNI_FALSE;
705 }
706
707 if (!readBits) {
708 /* Not reading from this image, so any image at least of the
709 size requested will do */
710 return JNI_TRUE;
711 }
712
713 if ((imgWidth < width + 64) && (imgHeight < height + 64)
714 && imgWidth <= maxWidth && imgHeight <= maxHeight)
715 {
716 /* Cached image's width/height shouldn't be more than 64 pixels
717 * larger than requested, because the region in XShmGetImage
718 * can't be specified and we don't want to read too much.
719 * Furthermore it has to be smaller than maxWidth/Height
720 * so drawables are not read out of bounds.
721 */
722 return JNI_TRUE;
723 }
724
725 return JNI_FALSE;
726 }
727 #endif /* MITSHM */
728
729 jint X11SD_InitWindow(JNIEnv *env, X11SDOps *xsdo)
730 {
731 if (xsdo->isPixmap == JNI_TRUE) {
732 return SD_FAILURE;
733 }
734 xsdo->cData = xsdo->configData->color_data;
735
736 return SD_SUCCESS;
737 }
738
739 static jint X11SD_Lock(JNIEnv *env,
740 SurfaceDataOps *ops,
741 SurfaceDataRasInfo *pRasInfo,
742 jint lockflags)
743 {
744 X11SDOps *xsdo = (X11SDOps *) ops;
745 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
746 int ret = SD_SUCCESS;
747
748 AWT_LOCK();
749
750 if (xsdo->invalid) {
751 AWT_UNLOCK();
752 SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
753 return SD_FAILURE;
754 }
755 xsdo->cData = xsdo->configData->color_data;
756 if (xsdo->drawable == 0 && X11SD_InitWindow(env, xsdo) == SD_FAILURE) {
757 AWT_UNLOCK();
758 return SD_FAILURE;
759 }
760 if ((lockflags & SD_LOCK_LUT) != 0 &&
761 (xsdo->cData == NULL ||
762 xsdo->cData->awt_icmLUT == NULL))
763 {
764 AWT_UNLOCK();
765 if (!(*env)->ExceptionCheck(env))
766 {
767 JNU_ThrowNullPointerException(env, "colormap lookup table");
768 }
769 return SD_FAILURE;
770 }
771 if ((lockflags & SD_LOCK_INVCOLOR) != 0 &&
772 (xsdo->cData == NULL ||
773 xsdo->cData->img_clr_tbl == NULL ||
774 xsdo->cData->img_oda_red == NULL ||
775 xsdo->cData->img_oda_green == NULL ||
776 xsdo->cData->img_oda_blue == NULL))
777 {
778 AWT_UNLOCK();
779 if (!(*env)->ExceptionCheck(env))
780 {
781 JNU_ThrowNullPointerException(env, "inverse colormap lookup table");
782 }
783 return SD_FAILURE;
784 }
785 if ((lockflags & SD_LOCK_INVGRAY) != 0 &&
786 (xsdo->cData == NULL ||
787 xsdo->cData->pGrayInverseLutData == NULL))
788 {
789 AWT_UNLOCK();
790 if (!(*env)->ExceptionCheck(env))
791 {
792 JNU_ThrowNullPointerException(env, "inverse gray lookup table");
793 }
794 return SD_FAILURE;
795 }
796 if (lockflags & SD_LOCK_RD_WR) {
797 if (lockflags & SD_LOCK_FASTEST) {
798 ret = SD_SLOWLOCK;
799 }
800 xpriv->lockType = X11SD_LOCK_BY_XIMAGE;
801 if (xsdo->isPixmap) {
802 #ifdef MITSHM
803 if (xsdo->shmPMData.usingShmPixmap) {
804 xpriv->lockType = X11SD_LOCK_BY_SHMEM;
805 }
806 #endif /* MITSHM */
807 if (pRasInfo->bounds.x1 < 0) {
808 pRasInfo->bounds.x1 = 0;
809 }
810 if (pRasInfo->bounds.y1 < 0) {
811 pRasInfo->bounds.y1 = 0;
812 }
813 if (pRasInfo->bounds.x2 > xsdo->pmWidth) {
814 pRasInfo->bounds.x2 = xsdo->pmWidth;
815 }
816 if (pRasInfo->bounds.y2 > xsdo->pmHeight) {
817 pRasInfo->bounds.y2 = xsdo->pmHeight;
818 }
819 }
820 } else {
821 /* They didn't lock for anything - we won't give them anything */
822 xpriv->lockType = X11SD_LOCK_BY_NULL;
823 }
824 xpriv->lockFlags = lockflags;
825 xpriv->img = NULL;
826
827 return ret;
828 /* AWT_UNLOCK() called in Unlock */
829 }
830
831 static void X11SD_GetRasInfo(JNIEnv *env,
832 SurfaceDataOps *ops,
833 SurfaceDataRasInfo *pRasInfo)
834 {
835 X11SDOps *xsdo = (X11SDOps *) ops;
836 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
837 jint lockFlags = xpriv->lockFlags;
838 jint depth = xsdo->depth;
839 int mult = xsdo->configData->pixelStride;
840
841
842 #ifdef MITSHM
843 if (xpriv->lockType == X11SD_LOCK_BY_SHMEM) {
844 if (xsdo->shmPMData.xRequestSent == JNI_TRUE) {
845 /* need to sync before using shared mem pixmap
846 if any x calls were issued for this pixmap */
847 XSync(awt_display, False);
848 xsdo->shmPMData.xRequestSent = JNI_FALSE;
849 }
850 xpriv->x = pRasInfo->bounds.x1;
851 xpriv->y = pRasInfo->bounds.y1;
852 pRasInfo->rasBase = xsdo->shmPMData.shmSegInfo->shmaddr;
853 pRasInfo->pixelStride = mult;
854 pRasInfo->pixelBitOffset = 0;
855 pRasInfo->scanStride = xsdo->shmPMData.bytesPerLine;
856 } else
857 #endif /* MITSHM */
858 if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE) {
859 int x, y, w, h;
860 x = pRasInfo->bounds.x1;
861 y = pRasInfo->bounds.y1;
862 w = pRasInfo->bounds.x2 - x;
863 h = pRasInfo->bounds.y2 - y;
864
865 xpriv->img = X11SD_GetImage(env, xsdo, &pRasInfo->bounds, lockFlags);
866 if (xpriv->img) {
867 int scan = xpriv->img->bytes_per_line;
868 xpriv->x = x;
869 xpriv->y = y;
870 pRasInfo->rasBase = xpriv->img->data - x * mult - y * scan;
871 pRasInfo->pixelStride = mult;
872 pRasInfo->pixelBitOffset = 0;
873 pRasInfo->scanStride = scan;
874 } else {
875 pRasInfo->rasBase = NULL;
876 pRasInfo->pixelStride = 0;
877 pRasInfo->pixelBitOffset = 0;
878 pRasInfo->scanStride = 0;
879 }
880 } else {
881 /* They didn't lock for anything - we won't give them anything */
882 pRasInfo->rasBase = NULL;
883 pRasInfo->pixelStride = 0;
884 pRasInfo->pixelBitOffset = 0;
885 pRasInfo->scanStride = 0;
886 }
887 if (lockFlags & SD_LOCK_LUT) {
888 pRasInfo->lutBase = (jint *) xsdo->cData->awt_icmLUT;
889 pRasInfo->lutSize = xsdo->cData->awt_numICMcolors;
890 } else {
891 pRasInfo->lutBase = NULL;
892 pRasInfo->lutSize = 0;
893 }
894 if (lockFlags & SD_LOCK_INVCOLOR) {
895 pRasInfo->invColorTable = xsdo->cData->img_clr_tbl;
896 pRasInfo->redErrTable = xsdo->cData->img_oda_red;
897 pRasInfo->grnErrTable = xsdo->cData->img_oda_green;
898 pRasInfo->bluErrTable = xsdo->cData->img_oda_blue;
899 } else {
900 pRasInfo->invColorTable = NULL;
901 pRasInfo->redErrTable = NULL;
902 pRasInfo->grnErrTable = NULL;
903 pRasInfo->bluErrTable = NULL;
904 }
905 if (lockFlags & SD_LOCK_INVGRAY) {
906 pRasInfo->invGrayTable = xsdo->cData->pGrayInverseLutData;
907 } else {
908 pRasInfo->invGrayTable = NULL;
909 }
910 }
911
912 static void X11SD_Unlock(JNIEnv *env,
913 SurfaceDataOps *ops,
914 SurfaceDataRasInfo *pRasInfo)
915 {
916 X11SDOps *xsdo = (X11SDOps *) ops;
917 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
918
919 if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
920 xpriv->img != NULL)
921 {
922 if (xpriv->lockFlags & SD_LOCK_WRITE) {
923 int x = xpriv->x;
924 int y = xpriv->y;
925 int w = pRasInfo->bounds.x2 - x;
926 int h = pRasInfo->bounds.y2 - y;
927 Drawable drawable = xsdo->drawable;
928 GC xgc = xsdo->cachedGC;
929 if (xgc == NULL) {
930 xsdo->cachedGC = xgc =
931 XCreateGC(awt_display, drawable, 0L, NULL);
932 }
933
934 if (xpriv->img->byte_order != nativeByteOrder) {
935 /* switching bytes back in 24 and 32 bpp cases. */
936 /* For 16 bit XLib will switch for us. */
937 if (xsdo->depth > 16) {
938 X11SD_SwapBytes(xsdo, xpriv->img, xsdo->depth,
939 xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
940 }
941 }
942
943 #ifdef MITSHM
944 if (xpriv->img->obdata != NULL) {
945 XShmPutImage(awt_display, drawable, xgc,
946 xpriv->img, 0, 0, x, y, w, h, False);
947 XFlush(awt_display);
948 } else {
949 XPutImage(awt_display, drawable, xgc,
950 xpriv->img, 0, 0, x, y, w, h);
951 }
952 if (xsdo->shmPMData.usingShmPixmap) {
953 xsdo->shmPMData.xRequestSent = JNI_TRUE;
954 }
955 #else
956 XPutImage(awt_display, drawable, xgc,
957 xpriv->img, 0, 0, x, y, w, h);
958 #endif /* MITSHM */
959
960 }
961 X11SD_DisposeOrCacheXImage(xpriv->img);
962 xpriv->img = (XImage *)NULL;
963 }
964 /* the background pixel is not valid anymore */
965 if (xpriv->lockFlags & SD_LOCK_WRITE) {
966 xsdo->isBgInitialized = JNI_FALSE;
967 }
968 xpriv->lockType = X11SD_LOCK_UNLOCKED;
969 AWT_UNLOCK();
970 }
971
972 static int
973 X11SD_ClipToRoot(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
974 X11SDOps *xsdo)
975 {
976 short x1=0, y1=0, x2=0, y2=0;
977 int tmpx, tmpy;
978 Window tmpchild;
979
980 Window window = (Window)(xsdo->drawable); /* is always a Window */
981 XWindowAttributes winAttr;
982
983 Status status = XGetWindowAttributes(awt_display, window, &winAttr);
984 if (status == 0) {
985 /* Failure, X window no longer valid. */
986 return FALSE;
987 }
988 if (!XTranslateCoordinates(awt_display, window,
989 RootWindowOfScreen(winAttr.screen),
990 0, 0, &tmpx, &tmpy, &tmpchild)) {
991 return FALSE;
992 }
993
994 x1 = -(x1 + tmpx);
995 y1 = -(y1 + tmpy);
996
997 x2 = x1 + DisplayWidth(awt_display, xsdo->configData->awt_visInfo.screen);
998 y2 = y1 + DisplayHeight(awt_display, xsdo->configData->awt_visInfo.screen);
999
1000 x1 = XSD_MAX(bounds->x1, x1);
1001 y1 = XSD_MAX(bounds->y1, y1);
1002 x2 = XSD_MIN(bounds->x2, x2);
1003 y2 = XSD_MIN(bounds->y2, y2);
1004 if ((x1 >= x2) || (y1 >= y2)) {
1005 return FALSE;
1006 }
1007 b->x1 = x1;
1008 b->y1 = y1;
1009 b->x2 = x2;
1010 b->y2 = y2;
1011
1012 return TRUE;
1013 }
1014
1015 /*
1016 * x1, y1, x2, y2 - our rectangle in the coord system of
1017 * the widget
1018 * px1, xy1, px2, py2 - current parent rect coords in the
1019 * same system
1020 */
1021 static int
1022 X11SD_FindClip(SurfaceDataBounds *b, SurfaceDataBounds *bounds, X11SDOps *xsdo)
1023 {
1024 return TRUE;
1025 }
1026
1027 static void
1028 X11SD_SwapBytes(X11SDOps *xsdo, XImage * img, int depth, int bpp) {
1029 int lengthInBytes = img->height * img->bytes_per_line;
1030 int i;
1031
1032 switch (depth) {
1033 case 12:
1034 case 15:
1035 case 16:
1036 {
1037 /* AB -> BA */
1038 unsigned short *d = (unsigned short *)img->data;
1039 unsigned short t;
1040 for (i = 0; i < lengthInBytes/2; i++) {
1041 t = *d;
1042 *d++ = (t >> 8) | (t << 8);
1043 }
1044 img->byte_order = nativeByteOrder;
1045 img->bitmap_bit_order = nativeByteOrder;
1046 break;
1047 }
1048 case 24:
1049 {
1050 /* ABC -> CBA */
1051 if (bpp == 24) {
1052 // 4517321: Only swap if we have a "real" ThreeByteBgr
1053 // visual (denoted by a red_mask of 0xff). Due to ambiguity
1054 // in the X11 spec, it appears that the swap is not required
1055 // on Linux configurations that use 24 bits per pixel (denoted
1056 // by a red_mask of 0xff0000).
1057 if (xsdo->configData->awt_visInfo.red_mask == 0xff) {
1058 int scan = img->bytes_per_line;
1059 unsigned char *d = (unsigned char *) img->data;
1060 unsigned char *d1;
1061 unsigned int t;
1062 int j;
1063
1064 for (i = 0; i < img->height; i++, d += scan) {
1065 d1 = d;
1066 for (j = 0; j < img->width; j++, d1 += 3) {
1067 /* not obvious opt from XLib src */
1068 t = d1[0]; d1[0] = d1[2]; d1[2] = t;
1069 }
1070 }
1071 }
1072 break;
1073 }
1074 }
1075 /* FALL THROUGH for 32-bit case */
1076 case 32:
1077 {
1078 /* ABCD -> DCBA */
1079 unsigned int *d = (unsigned int *) img->data;
1080 unsigned int t;
1081 for (i = 0; i < lengthInBytes/4; i++) {
1082 t = *d;
1083 *d++ = ((t >> 24) |
1084 ((t >> 8) & 0xff00) |
1085 ((t & 0xff00) << 8) |
1086 (t << 24));
1087 }
1088 break;
1089 }
1090 }
1091 }
1092
1093 static XImage * X11SD_GetImage(JNIEnv *env, X11SDOps *xsdo,
1094 SurfaceDataBounds *bounds,
1095 jint lockFlags)
1096 {
1097 int x, y, w, h, maxWidth, maxHeight;
1098 int scan;
1099 XImage * img = NULL;
1100 Drawable drawable;
1101 int depth = xsdo->depth;
1102 int mult = xsdo->configData->pixelStride;
1103 int pad = (mult == 3) ? 32 : mult * 8; // pad must be 8, 16, or 32
1104 jboolean readBits = lockFlags & SD_LOCK_NEED_PIXELS;
1105
1106 x = bounds->x1;
1107 y = bounds->y1;
1108 w = bounds->x2 - x;
1109 h = bounds->y2 - y;
1110
1111 #ifdef MITSHM
1112 if (useMitShmExt == CAN_USE_MITSHM) {
1113 if (xsdo->isPixmap) {
1114 if (readBits) {
1115 X11SD_PuntPixmap(xsdo, w, h);
1116 }
1117 maxWidth = xsdo->pmWidth;
1118 maxHeight = xsdo->pmHeight;
1119 } else {
1120 XWindowAttributes winAttr;
1121 if (XGetWindowAttributes(awt_display,
1122 (Window) xsdo->drawable, &winAttr) != 0) {
1123 maxWidth = winAttr.width;
1124 maxHeight = winAttr.height;
1125 } else {
1126 /* XGWA failed which isn't a good thing. Defaulting to using
1127 * x,y means that after the subtraction of these we will use
1128 * w=0, h=0 which is a reasonable default on such a failure.
1129 */
1130 maxWidth = x;
1131 maxHeight = y;
1132 }
1133 }
1134 maxWidth -= x;
1135 maxHeight -= y;
1136
1137 img = X11SD_GetSharedImage(xsdo, w, h, maxWidth, maxHeight, readBits);
1138 }
1139 #endif /* MITSHM */
1140 drawable = xsdo->drawable;
1141
1142 if (readBits) {
1143 #ifdef MITSHM
1144 if (img != NULL) {
1145 if (!XShmGetImage(awt_display, drawable, img, x, y, -1)) {
1146 X11SD_DisposeOrCacheXImage(img);
1147 img = NULL;
1148 }
1149 }
1150 if (img == NULL) {
1151 img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
1152 if (img != NULL) {
1153 img->obdata = NULL;
1154 }
1155 }
1156 #else
1157 img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
1158 #endif /* MITSHM */
1159 if (img == NULL) {
1160 SurfaceDataBounds temp;
1161 img = XCreateImage(awt_display,
1162 xsdo->configData->awt_visInfo.visual,
1163 depth, ZPixmap, 0, NULL, w, h, pad, 0);
1164 if (img == NULL) {
1165 return NULL;
1166 }
1167
1168 scan = img->bytes_per_line;
1169 img->data = malloc(h * scan);
1170 if (img->data == NULL) {
1171 XFree(img);
1172 return NULL;
1173 }
1174
1175 if (xsdo->isPixmap == JNI_FALSE &&
1176 X11SD_ClipToRoot(&temp, bounds, xsdo)) {
1177
1178 XImage * temp_image;
1179 temp_image = XGetImage(awt_display, drawable,
1180 temp.x1, temp.y1,
1181 temp.x2 - temp.x1,
1182 temp.y2 - temp.y1,
1183 -1, ZPixmap);
1184 if (temp_image == NULL) {
1185 XGrabServer(awt_display);
1186 if (X11SD_FindClip(&temp, bounds, xsdo)) {
1187 temp_image =
1188 XGetImage(awt_display, drawable,
1189 temp.x1, temp.y1,
1190 temp.x2 - temp.x1,
1191 temp.y2 - temp.y1,
1192 -1, ZPixmap);
1193 }
1194 XUngrabServer(awt_display);
1195 /* Workaround for bug 5039226 */
1196 XSync(awt_display, False);
1197 }
1198 if (temp_image != NULL) {
1199 int temp_scan, bytes_to_copy;
1200 char * img_addr, * temp_addr;
1201 int i;
1202
1203 img_addr = img->data +
1204 (temp.y1 - y) * scan + (temp.x1 - x) * mult;
1205 temp_scan = temp_image->bytes_per_line;
1206 temp_addr = temp_image->data;
1207 bytes_to_copy = (temp.x2 - temp.x1) * mult;
1208 for (i = temp.y1; i < temp.y2; i++) {
1209 memcpy(img_addr, temp_addr, bytes_to_copy);
1210 img_addr += scan;
1211 temp_addr += temp_scan;
1212 }
1213 XDestroyImage(temp_image);
1214 }
1215 }
1216 img->obdata = NULL;
1217 }
1218 if (depth > 8 && img->byte_order != nativeByteOrder) {
1219 X11SD_SwapBytes(xsdo, img, depth,
1220 xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
1221 }
1222 } else {
1223 /*
1224 * REMIND: This might be better to move to the Lock function
1225 * to avoid lengthy I/O pauses inside what may be a critical
1226 * section. This will be more critical when SD_LOCK_READ is
1227 * implemented. Another solution is to cache the pixels
1228 * to avoid reading for every operation.
1229 */
1230 if (img == NULL) {
1231 img = XCreateImage(awt_display,
1232 xsdo->configData->awt_visInfo.visual,
1233 depth, ZPixmap, 0, NULL, w, h, pad, 0);
1234 if (img == NULL) {
1235 return NULL;
1236 }
1237
1238 img->data = malloc(h * img->bytes_per_line);
1239 if (img->data == NULL) {
1240 XFree(img);
1241 return NULL;
1242 }
1243
1244 img->obdata = NULL;
1245
1246 if (img->byte_order != nativeByteOrder &&
1247 (depth == 15 || depth == 16 || depth == 12)) {
1248 /* bytes will be swapped by XLib. */
1249 img->byte_order = nativeByteOrder;
1250 img->bitmap_bit_order = nativeByteOrder;
1251 }
1252 }
1253 }
1254 return img;
1255 }
1256
1257 void X11SD_DisposeOrCacheXImage(XImage * image) {
1258 /* REMIND: might want to check if the new image worth caching. */
1259 /* Cache only shared images. Passed image is assumed to be non-null. */
1260 if (image->obdata != NULL) {
1261 if (cachedXImage != NULL) {
1262 X11SD_DisposeXImage(cachedXImage);
1263 }
1264 cachedXImage = image;
1265 } else {
1266 X11SD_DisposeXImage(image);
1267 }
1268 }
1269
1270 void X11SD_DisposeXImage(XImage * image) {
1271 if (image != NULL) {
1272 #ifdef MITSHM
1273 if (image->obdata != NULL) {
1274 X11SD_DropSharedSegment((XShmSegmentInfo*)image->obdata);
1275 image->obdata = NULL;
1276 }
1277 #endif /* MITSHM */
1278 XDestroyImage(image);
1279 }
1280 }
1281
1282 void
1283 X11SD_DirectRenderNotify(JNIEnv *env, X11SDOps *xsdo)
1284 {
1285 #ifdef MITSHM
1286 if (xsdo->shmPMData.usingShmPixmap) {
1287 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1288 }
1289 #endif /* MITSHM */
1290 awt_output_flush();
1291 }
1292
1293 /*
1294 * Sets transparent pixels in the pixmap to
1295 * the specified solid background color and returns it.
1296 * Doesn't update source pixmap unless the color of the
1297 * transparent pixels is different from the specified color.
1298 *
1299 * Note: The AWT lock must be held by the current thread
1300 * while calling into this method.
1301 */
1302 static Drawable
1303 X11SD_GetPixmapWithBg(JNIEnv *env, X11SDOps *xsdo, jint pixel)
1304 {
1305 /* assert AWT_CHECK_HAVE_LOCK(); */
1306
1307 if (xsdo->invalid) {
1308 AWT_UNLOCK();
1309 SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
1310 return 0;
1311 }
1312
1313 /* the image doesn't have transparency, just return it */
1314 if (xsdo->bitmask == 0) {
1315 /* don't need to unlock here, the caller will unlock through
1316 the release call */
1317 return xsdo->drawable;
1318 }
1319
1320 /* Check if current color of the transparent pixels is different
1321 from the specified one */
1322 if (xsdo->isBgInitialized == JNI_FALSE || xsdo->bgPixel != pixel) {
1323 GC srcGC;
1324 GC bmGC;
1325
1326 if (xsdo->drawable == 0) {
1327 AWT_UNLOCK();
1328 return 0;
1329 }
1330
1331 bmGC = XCreateGC(awt_display, xsdo->bitmask, 0, NULL);
1332 if (bmGC == NULL) {
1333 AWT_UNLOCK();
1334 return 0;
1335 }
1336
1337 /* invert the bitmask */
1338 XSetFunction(awt_display, bmGC, GXxor);
1339 XSetForeground(awt_display, bmGC, 1);
1340 XFillRectangle(awt_display, xsdo->bitmask, bmGC,
1341 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1342
1343 srcGC = XCreateGC(awt_display, xsdo->drawable, 0L, NULL);
1344 if (srcGC == NULL) {
1345 XFreeGC(awt_display, bmGC);
1346 AWT_UNLOCK();
1347 return 0;
1348 }
1349
1350 /* set transparent pixels in the source pm to the bg color */
1351 XSetClipMask(awt_display, srcGC, xsdo->bitmask);
1352 XSetForeground(awt_display, srcGC, pixel);
1353 XFillRectangle(awt_display, xsdo->drawable, srcGC,
1354 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1355
1356 /* invert the mask back */
1357 XFillRectangle(awt_display, xsdo->bitmask, bmGC,
1358 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1359
1360 XFreeGC(awt_display, bmGC);
1361 XFreeGC(awt_display, srcGC);
1362 xsdo->bgPixel = pixel;
1363 xsdo->isBgInitialized = JNI_TRUE;
1364 }
1365
1366 return xsdo->drawable;
1367 }
1368
1369 static void
1370 X11SD_ReleasePixmapWithBg(JNIEnv *env, X11SDOps *xsdo)
1371 {
1372 #ifdef MITSHM
1373 if (xsdo->shmPMData.usingShmPixmap) {
1374 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1375 }
1376 #endif /* MITSHM */
1377 }
1378
1379 #endif /* !HEADLESS */
1380
1381 /*
1382 * Class: sun_java2d_x11_X11SurfaceData
1383 * Method: XCreateGC
1384 * Signature: (I)J
1385 */
1386 JNIEXPORT jlong JNICALL
1387 Java_sun_java2d_x11_XSurfaceData_XCreateGC
1388 (JNIEnv *env, jclass xsd, jlong pXSData)
1389 {
1390 jlong ret;
1391
1392 #ifndef HEADLESS
1393 X11SDOps *xsdo;
1394
1395 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XCreateGC");
1396
1397 xsdo = (X11SDOps *) jlong_to_ptr(pXSData);
1398 if (xsdo == NULL) {
1399 return 0L;
1400 }
1401
1402 xsdo->javaGC = XCreateGC(awt_display, xsdo->drawable, 0, NULL);
1403 ret = ptr_to_jlong(xsdo->javaGC);
1404 #else /* !HEADLESS */
1405 ret = 0L;
1406 #endif /* !HEADLESS */
1407
1408 return ret;
1409 }
1410
1411 /*
1412 * Class: sun_java2d_x11_X11SurfaceData
1413 * Method: XResetClip
1414 * Signature: (JIIIILsun/java2d/pipe/Region;)V
1415 */
1416 JNIEXPORT void JNICALL
1417 Java_sun_java2d_x11_XSurfaceData_XResetClip
1418 (JNIEnv *env, jclass xsd, jlong xgc)
1419 {
1420 #ifndef HEADLESS
1421 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XResetClip");
1422 XSetClipMask(awt_display, (GC) jlong_to_ptr(xgc), None);
1423 #endif /* !HEADLESS */
1424 }
1425
1426 /*
1427 * Class: sun_java2d_x11_X11SurfaceData
1428 * Method: XSetClip
1429 * Signature: (JIIIILsun/java2d/pipe/Region;)V
1430 */
1431 JNIEXPORT void JNICALL
1432 Java_sun_java2d_x11_XSurfaceData_XSetClip
1433 (JNIEnv *env, jclass xsd, jlong xgc,
1434 jint x1, jint y1, jint x2, jint y2,
1435 jobject complexclip)
1436 {
1437 #ifndef HEADLESS
1438 int numrects;
1439 XRectangle rects[256];
1440 XRectangle *pRect = rects;
1441
1442 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetClip");
1443
1444 numrects = RegionToYXBandedRectangles(env,
1445 x1, y1, x2, y2, complexclip,
1446 &pRect, 256);
1447
1448 XSetClipRectangles(awt_display, (GC) jlong_to_ptr(xgc), 0, 0, pRect, numrects, YXBanded);
1449
1450 if (pRect != rects) {
1451 free(pRect);
1452 }
1453 #endif /* !HEADLESS */
1454 }
1455
1456 /*
1457 * Class: sun_java2d_x11_X11SurfaceData
1458 * Method: XSetCopyMode
1459 * Signature: (J)V
1460 */
1461 JNIEXPORT void JNICALL
1462 Java_sun_java2d_x11_X11SurfaceData_XSetCopyMode
1463 (JNIEnv *env, jclass xsd, jlong xgc)
1464 {
1465 #ifndef HEADLESS
1466 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetCopyMode");
1467 XSetFunction(awt_display, (GC) jlong_to_ptr(xgc), GXcopy);
1468 #endif /* !HEADLESS */
1469 }
1470
1471 /*
1472 * Class: sun_java2d_x11_X11SurfaceData
1473 * Method: XSetXorMode
1474 * Signature: (J)V
1475 */
1476 JNIEXPORT void JNICALL
1477 Java_sun_java2d_x11_X11SurfaceData_XSetXorMode
1478 (JNIEnv *env, jclass xr, jlong xgc)
1479 {
1480 #ifndef HEADLESS
1481 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetXorMode");
1482 XSetFunction(awt_display, (GC) jlong_to_ptr(xgc), GXxor);
1483 #endif /* !HEADLESS */
1484 }
1485
1486 /*
1487 * Class: sun_java2d_x11_X11SurfaceData
1488 * Method: XSetForeground
1489 * Signature: (JI)V
1490 */
1491 JNIEXPORT void JNICALL
1492 Java_sun_java2d_x11_X11SurfaceData_XSetForeground
1493 (JNIEnv *env, jclass xsd, jlong xgc, jint pixel)
1494 {
1495 #ifndef HEADLESS
1496 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetForeground");
1497 XSetForeground(awt_display, (GC) jlong_to_ptr(xgc), pixel);
1498 #endif /* !HEADLESS */
1499 }
1500
1501 /*
1502 * Class: sun_java2d_x11_X11SurfaceData
1503 * Method: XSetGraphicsExposures
1504 * Signature: (JZ)V
1505 */
1506 JNIEXPORT void JNICALL
1507 Java_sun_java2d_x11_XSurfaceData_XSetGraphicsExposures
1508 (JNIEnv *env, jclass xsd, jlong xgc, jboolean needExposures)
1509 {
1510 #ifndef HEADLESS
1511 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetGraphicsExposures");
1512 XSetGraphicsExposures(awt_display, (GC) jlong_to_ptr(xgc), needExposures ? True : False);
1513 #endif /* !HEADLESS */
1514 }