1 /*
2 * Copyright (c) 1999, 2011, 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 static JDgaLibInfo DgaLibInfoStub;
43 static JDgaLibInfo theJDgaInfo;
44 static JDgaLibInfo *pJDgaInfo = &DgaLibInfoStub;
45
46
47 /**
48 * This file contains support code for loops using the SurfaceData
49 * interface to talk to an X11 drawable from native code.
50 */
51
52 typedef struct _X11RIPrivate {
53 jint lockType;
54 jint lockFlags;
55 XImage *img;
56 int x, y;
57 } X11RIPrivate;
58
59 #define MAX(a,b) ((a) > (b) ? (a) : (b))
60 #define MIN(a,b) ((a) < (b) ? (a) : (b))
61
62 static LockFunc X11SD_Lock;
63 static GetRasInfoFunc X11SD_GetRasInfo;
64 static UnlockFunc X11SD_Unlock;
65 static DisposeFunc X11SD_Dispose;
66 static GetPixmapBgFunc X11SD_GetPixmapWithBg;
67 static ReleasePixmapBgFunc X11SD_ReleasePixmapWithBg;
68 #ifndef XAWT
69 extern struct MComponentPeerIDs mComponentPeerIDs;
70 #endif
71 extern int J2DXErrHandler(Display *display, XErrorEvent *xerr);
72 extern AwtGraphicsConfigDataPtr
73 getGraphicsConfigFromComponentPeer(JNIEnv *env, jobject this);
74 extern struct X11GraphicsConfigIDs x11GraphicsConfigIDs;
75
76 static int X11SD_FindClip(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
77 X11SDOps *xsdo);
78 static int X11SD_ClipToRoot(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
79 X11SDOps *xsdo);
80 static void X11SD_SwapBytes(X11SDOps *xsdo, XImage *img, int depth, int bpp);
81 static XImage * X11SD_GetImage(JNIEnv *env, X11SDOps *xsdo,
82 SurfaceDataBounds *bounds,
83 jint lockFlags);
84
85 extern jfieldID validID;
86
87 static int nativeByteOrder;
88 static jboolean dgaAvailable = JNI_FALSE;
89 static jboolean useDGAWithPixmaps = JNI_FALSE;
90 static jclass xorCompClass;
91
92 jint useMitShmExt = CANT_USE_MITSHM;
93 jint useMitShmPixmaps = CANT_USE_MITSHM;
94 jint forceSharedPixmaps = JNI_FALSE;
95 int mitShmPermissionMask = MITSHM_PERM_OWNER;
96
97 /* Cached shared image, one for all surface datas. */
98 static XImage * cachedXImage;
99
100 #endif /* !HEADLESS */
101
102 jboolean XShared_initIDs(JNIEnv *env, jboolean allowShmPixmaps)
103 {
104 #ifndef HEADLESS
105 union {
106 char c[4];
107 int i;
108 } endian;
109
110 endian.i = 0xff000000;
111 nativeByteOrder = (endian.c[0]) ? MSBFirst : LSBFirst;
112
113 dgaAvailable = JNI_FALSE;
114
115 cachedXImage = NULL;
116
117 if (sizeof(X11RIPrivate) > SD_RASINFO_PRIVATE_SIZE) {
118 JNU_ThrowInternalError(env, "Private RasInfo structure too large!");
119 return JNI_FALSE;
120 }
121
122 #ifdef MITSHM
123 if (getenv("NO_AWT_MITSHM") == NULL &&
124 getenv("NO_J2D_MITSHM") == NULL) {
125 char * force;
126 char * permission = getenv("J2D_MITSHM_PERMISSION");
127 if (permission != NULL) {
128 if (strcmp(permission, "common") == 0) {
129 mitShmPermissionMask = MITSHM_PERM_COMMON;
130 }
131 }
132
133 TryInitMITShm(env, &useMitShmExt, &useMitShmPixmaps);
134
135 if(allowShmPixmaps) {
136 useMitShmPixmaps = (useMitShmPixmaps == CAN_USE_MITSHM);
137 force = getenv("J2D_PIXMAPS");
138 if (force != NULL) {
139 if (useMitShmPixmaps && (strcmp(force, "shared") == 0)) {
140 forceSharedPixmaps = JNI_TRUE;
141 } else if (strcmp(force, "server") == 0) {
142 useMitShmPixmaps = JNI_FALSE;
143 }
144 }
145 }else {
146 useMitShmPixmaps = JNI_FALSE;
147 }
148 }
149
150 return JNI_TRUE;
151 #endif /* MITSHM */
152
153 #endif /* !HEADLESS */
154 }
155
156
157 /*
158 * Class: sun_java2d_x11_X11SurfaceData
159 * Method: initIDs
160 * Signature: (Ljava/lang/Class;Z)V
161 */
162 JNIEXPORT void JNICALL
163 Java_sun_java2d_x11_X11SurfaceData_initIDs(JNIEnv *env, jclass xsd,
164 jclass XORComp, jboolean tryDGA)
165 {
166 #ifndef HEADLESS
167 if(XShared_initIDs(env, JNI_TRUE))
168 {
169 void *lib = 0;
170
171 xorCompClass = (*env)->NewGlobalRef(env, XORComp);
172
173 if (tryDGA && (getenv("NO_J2D_DGA") == NULL)) {
174 /* we use RTLD_NOW because of bug 4032715 */
175 lib = dlopen(JNI_LIB_NAME("sunwjdga"), RTLD_NOW);
176 }
177
178 if (lib != NULL) {
179 JDgaStatus ret = JDGA_FAILED;
180 void *sym = dlsym(lib, "JDgaLibInit");
181 if (sym != NULL) {
182 theJDgaInfo.display = awt_display;
183 AWT_LOCK();
184 ret = (*(JDgaLibInitFunc *)sym)(env, &theJDgaInfo);
185 AWT_UNLOCK();
186 }
187 if (ret == JDGA_SUCCESS) {
188 pJDgaInfo = &theJDgaInfo;
189 dgaAvailable = JNI_TRUE;
190 useDGAWithPixmaps = (getenv("USE_DGA_PIXMAPS") != NULL);
191 } else {
192 dlclose(lib);
193 lib = NULL;
194 }
195 }
196 }
197 #endif /* !HEADLESS */
198 }
199
200 /*
201 * Class: sun_java2d_x11_X11SurfaceData
202 * Method: isDrawableValid
203 * Signature: ()Z
204 */
205 JNIEXPORT jboolean JNICALL
206 Java_sun_java2d_x11_XSurfaceData_isDrawableValid(JNIEnv *env, jobject this)
207 {
208 jboolean ret = JNI_FALSE;
209
210 #ifndef HEADLESS
211 X11SDOps *xsdo = X11SurfaceData_GetOps(env, this);
212
213 AWT_LOCK();
214 if (xsdo->drawable != 0 || X11SD_InitWindow(env, xsdo) == SD_SUCCESS) {
215 ret = JNI_TRUE;
216 }
217 AWT_UNLOCK();
218 #endif /* !HEADLESS */
219
220 return ret;
221 }
222
223 /*
224 * Class: sun_java2d_x11_X11SurfaceData
225 * Method: isShmPMAvailable
226 * Signature: ()Z
227 */
228 JNIEXPORT jboolean JNICALL
229 Java_sun_java2d_x11_X11SurfaceData_isShmPMAvailable(JNIEnv *env, jobject this)
230 {
231 #if defined(HEADLESS) || !defined(MITSHM)
232 return JNI_FALSE;
233 #else
234 return useMitShmPixmaps;
235 #endif /* HEADLESS, MITSHM */
236 }
237
238 /*
239 * Class: sun_java2d_x11_X11SurfaceData
240 * Method: isDgaAvailable
241 * Signature: ()Z
242 */
243 JNIEXPORT jboolean JNICALL
244 Java_sun_java2d_x11_X11SurfaceData_isDgaAvailable(JNIEnv *env, jobject this)
245 {
246 #if defined(HEADLESS) || defined(__linux__)
247 return JNI_FALSE;
248 #else
249 return dgaAvailable;
250 #endif /* HEADLESS */
251 }
252
253 /*
254 * Class: sun_java2d_x11_X11SurfaceData
255 * Method: initOps
256 * Signature: (Ljava/lang/Object;I)V
257 */
258 JNIEXPORT void JNICALL
259 Java_sun_java2d_x11_XSurfaceData_initOps(JNIEnv *env, jobject xsd,
260 jobject peer,
261 jobject graphicsConfig, jint depth)
262 {
263 #ifndef HEADLESS
264 X11SDOps *xsdo = (X11SDOps*)SurfaceData_InitOps(env, xsd, sizeof(X11SDOps));
265 if (xsdo == NULL) {
266 JNU_ThrowOutOfMemoryError(env, "Initialization of SurfaceData failed.");
267 return;
268 }
269 xsdo->sdOps.Lock = X11SD_Lock;
270 xsdo->sdOps.GetRasInfo = X11SD_GetRasInfo;
271 xsdo->sdOps.Unlock = X11SD_Unlock;
272 xsdo->sdOps.Dispose = X11SD_Dispose;
273 xsdo->GetPixmapWithBg = X11SD_GetPixmapWithBg;
274 xsdo->ReleasePixmapWithBg = X11SD_ReleasePixmapWithBg;
275 #ifndef XAWT
276 if (peer != NULL) {
277 struct ComponentData *cdata;
278 cdata = (struct ComponentData *)
279 JNU_GetLongFieldAsPtr(env, peer, mComponentPeerIDs.pData);
280 if (cdata == NULL) {
281 JNU_ThrowNullPointerException(env, "Component data missing");
282 return;
283 }
284 if (cdata->widget == NULL) {
285 JNU_ThrowInternalError(env, "Widget is NULL in initOps");
286 return;
287 }
288 xsdo->widget = cdata->widget;
289 } else {
290 xsdo->widget = NULL;
291 }
292 #else
293 xsdo->widget = NULL;
294 if (peer != NULL) {
295 xsdo->drawable = JNU_CallMethodByName(env, NULL, peer, "getWindow", "()J").j;
296 } else {
297 xsdo->drawable = 0;
298 }
299 #endif
300 xsdo->depth = depth;
301 xsdo->dgaAvailable = dgaAvailable;
302 xsdo->isPixmap = JNI_FALSE;
303 xsdo->bitmask = 0;
304 xsdo->bgPixel = 0;
305 xsdo->isBgInitialized = JNI_FALSE;
306 #ifdef MITSHM
307 xsdo->shmPMData.shmSegInfo = NULL;
308 xsdo->shmPMData.xRequestSent = JNI_FALSE;
309 xsdo->shmPMData.pmSize = 0;
310 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
311 xsdo->shmPMData.pixmap = 0;
312 xsdo->shmPMData.shmPixmap = 0;
313 xsdo->shmPMData.numBltsSinceRead = 0;
314 xsdo->shmPMData.pixelsReadSinceBlt = 0;
315 xsdo->shmPMData.numBltsThreshold = 2;
316 #endif /* MITSHM */
317
318 xsdo->configData = (AwtGraphicsConfigDataPtr)
319 JNU_GetLongFieldAsPtr(env,
320 graphicsConfig,
321 x11GraphicsConfigIDs.aData);
322 if (xsdo->configData == NULL) {
323 JNU_ThrowNullPointerException(env,
324 "Native GraphicsConfig data block missing");
325 return;
326 }
327 if (depth > 12) {
328 xsdo->pixelmask = (xsdo->configData->awt_visInfo.red_mask |
329 xsdo->configData->awt_visInfo.green_mask |
330 xsdo->configData->awt_visInfo.blue_mask);
331 } else if (depth == 12) {
332 xsdo->pixelmask = 0xfff;
333 } else {
334 xsdo->pixelmask = 0xff;
335 }
336
337 xsdo->xrPic = None;
338 #endif /* !HEADLESS */
339 }
340
341 /*
342 * Class: sun_java2d_x11_X11SurfaceData
343 * Method: flushNativeSurface
344 * Signature: ()V
345 */
346 JNIEXPORT void JNICALL
347 Java_sun_java2d_x11_XSurfaceData_flushNativeSurface(JNIEnv *env, jobject xsd)
348 {
349 #ifndef HEADLESS
350 SurfaceDataOps *ops = SurfaceData_GetOps(env, xsd);
351
352 if (ops != NULL) {
353 X11SD_Dispose(env, ops);
354 }
355 #endif /* !HEADLESS */
356 }
357
358
359 JNIEXPORT X11SDOps * JNICALL
360 X11SurfaceData_GetOps(JNIEnv *env, jobject sData)
361 {
362 #ifdef HEADLESS
363 return NULL;
364 #else
365 SurfaceDataOps *ops = SurfaceData_GetOps(env, sData);
366 if (ops != NULL && ops->Lock != X11SD_Lock) {
367 SurfaceData_ThrowInvalidPipeException(env, "not an X11 SurfaceData");
368 ops = NULL;
369 }
370 return (X11SDOps *) ops;
371 #endif /* !HEADLESS */
372 }
373
374 /*
375 * Method for disposing X11SD-specific data
376 */
377 static void
378 X11SD_Dispose(JNIEnv *env, SurfaceDataOps *ops)
379 {
380 #ifndef HEADLESS
381 /* ops is assumed non-null as it is checked in SurfaceData_DisposeOps */
382 X11SDOps * xsdo = (X11SDOps*)ops;
383
384 AWT_LOCK();
385
386 xsdo->invalid = JNI_TRUE;
387
388 if (xsdo->xrPic != None) {
389 XRenderFreePicture(awt_display, xsdo->xrPic);
390 xsdo->xrPic = None;
391 }
392
393 if (xsdo->isPixmap == JNI_TRUE && xsdo->drawable != 0) {
394 #ifdef MITSHM
395 if (xsdo->shmPMData.shmSegInfo != NULL) {
396 X11SD_DropSharedSegment(xsdo->shmPMData.shmSegInfo);
397 xsdo->shmPMData.shmSegInfo = NULL;
398 }
399 if (xsdo->shmPMData.pixmap) {
400 XFreePixmap(awt_display, xsdo->shmPMData.pixmap);
401 xsdo->shmPMData.pixmap = 0;
402 }
403 if (xsdo->shmPMData.shmPixmap) {
404 XFreePixmap(awt_display, xsdo->shmPMData.shmPixmap);
405 xsdo->shmPMData.shmPixmap = 0;
406 }
407 #else
408 XFreePixmap(awt_display, xsdo->drawable);
409 #endif /* MITSHM */
410 xsdo->drawable = 0;
411 }
412 if (xsdo->bitmask != 0) {
413 XFreePixmap(awt_display, xsdo->bitmask);
414 xsdo->bitmask = 0;
415 }
416 if (xsdo->javaGC != NULL) {
417 XFreeGC(awt_display, xsdo->javaGC);
418 xsdo->javaGC = NULL;
419 }
420 if (xsdo->cachedGC != NULL) {
421 XFreeGC(awt_display, xsdo->cachedGC);
422 xsdo->cachedGC = NULL;
423 }
424
425 if(xsdo->xrPic != None) {
426 XRenderFreePicture(awt_display, xsdo->xrPic);
427 }
428
429 AWT_UNLOCK();
430 #endif /* !HEADLESS */
431 }
432 /*
433 * Class: sun_java2d_x11_X11SurfaceData
434 * Method: setInvalid
435 * Signature: ()V
436 */
437 JNIEXPORT void JNICALL
438 Java_sun_java2d_x11_XSurfaceData_setInvalid(JNIEnv *env, jobject xsd)
439 {
440 #ifndef HEADLESS
441 X11SDOps *xsdo = (X11SDOps *) SurfaceData_GetOps(env, xsd);
442
443 if (xsdo != NULL) {
444 xsdo->invalid = JNI_TRUE;
445 }
446 #endif /* !HEADLESS */
447 }
448
449
450 jboolean XShared_initSurface(JNIEnv *env, X11SDOps *xsdo, jint depth, jint width, jint height, jlong drawable)
451 {
452 #ifndef HEADLESS
453
454 if (drawable != (jlong)0) {
455 /* Double-buffering */
456 xsdo->drawable = drawable;
457 xsdo->isPixmap = JNI_FALSE;
458 } else {
459 xsdo->isPixmap = JNI_TRUE;
460 /* REMIND: workaround for bug 4420220 on pgx32 boards:
461 don't use DGA with pixmaps unless USE_DGA_PIXMAPS is set.
462 */
463 xsdo->dgaAvailable = useDGAWithPixmaps;
464
465 xsdo->pmWidth = width;
466 xsdo->pmHeight = height;
467
468 #ifdef MITSHM
469 xsdo->shmPMData.pmSize = width * height * depth;
470 xsdo->shmPMData.pixelsReadThreshold = width * height / 8;
471 if (forceSharedPixmaps) {
472 AWT_LOCK();
473 xsdo->drawable = X11SD_CreateSharedPixmap(xsdo);
474 AWT_UNLOCK();
475 if (xsdo->drawable) {
476 xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
477 xsdo->shmPMData.shmPixmap = xsdo->drawable;
478 return JNI_TRUE;
479 }
480 }
481 #endif /* MITSHM */
482
483 AWT_LOCK();
484 xsdo->drawable =
485 XCreatePixmap(awt_display,
486 RootWindow(awt_display,
487 xsdo->configData->awt_visInfo.screen),
488 width, height, depth);
489 AWT_UNLOCK();
490 #ifdef MITSHM
491 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
492 xsdo->shmPMData.pixmap = xsdo->drawable;
493 #endif /* MITSHM */
494 }
495 if (xsdo->drawable == 0) {
496 JNU_ThrowOutOfMemoryError(env,
497 "Can't create offscreen surface");
498 return JNI_FALSE;
499 }
500
501 return JNI_TRUE;
502 #endif /* !HEADLESS */
503 }
504
505
506 /*
507 * Class: sun_java2d_x11_X11SurfaceData
508 * Method: initSurface
509 * Signature: ()V
510 */
511 JNIEXPORT void JNICALL
512 Java_sun_java2d_x11_X11SurfaceData_initSurface(JNIEnv *env, jclass xsd,
513 jint depth,
514 jint width, jint height,
515 jlong drawable)
516 {
517 #ifndef HEADLESS
518 X11SDOps *xsdo = X11SurfaceData_GetOps(env, xsd);
519 if (xsdo == NULL) {
520 return;
521 }
522
523 if (xsdo->configData->awt_cmap == (Colormap)NULL) {
524 awtJNI_CreateColorData(env, xsdo->configData, 1);
525 }
526 /* color_data will be initialized in awtJNI_CreateColorData for
527 8-bit visuals */
528 xsdo->cData = xsdo->configData->color_data;
529
530 XShared_initSurface(env, xsdo, depth, width, height, drawable);
531 xsdo->xrPic = NULL;
532 #endif /* !HEADLESS */
533 }
534
535 #ifndef HEADLESS
536
537 #ifdef MITSHM
538
539 void X11SD_DropSharedSegment(XShmSegmentInfo *shminfo)
540 {
541 if (shminfo != NULL) {
542 XShmDetach(awt_display, shminfo);
543 shmdt(shminfo->shmaddr);
544 /* REMIND: we don't need shmctl(shminfo->shmid, IPC_RMID, 0); here. */
545 /* Check X11SD_CreateSharedImage() for the explanation */
546 }
547 }
548
549 XImage* X11SD_CreateSharedImage(X11SDOps *xsdo,
550 jint width, jint height)
551 {
552 XImage *img = NULL;
553 XShmSegmentInfo *shminfo;
554
555 shminfo = malloc(sizeof(XShmSegmentInfo));
556 if (shminfo == NULL) {
557 return NULL;
558 }
559 memset(shminfo, 0, sizeof(XShmSegmentInfo));
560
561 img = XShmCreateImage(awt_display, xsdo->configData->awt_visInfo.visual,
562 xsdo->depth, ZPixmap, NULL, shminfo,
563 width, height);
564 if (img == NULL) {
565 free((void *)shminfo);
566 return NULL;
567 }
568 shminfo->shmid =
569 shmget(IPC_PRIVATE, height * img->bytes_per_line,
570 IPC_CREAT|mitShmPermissionMask);
571 if (shminfo->shmid < 0) {
572 J2dRlsTraceLn1(J2D_TRACE_ERROR,
573 "X11SD_SetupSharedSegment shmget has failed: %s",
574 strerror(errno));
575 free((void *)shminfo);
576 XDestroyImage(img);
577 return NULL;
578 }
579
580 shminfo->shmaddr = (char *) shmat(shminfo->shmid, 0, 0);
581 if (shminfo->shmaddr == ((char *) -1)) {
582 shmctl(shminfo->shmid, IPC_RMID, 0);
583 J2dRlsTraceLn1(J2D_TRACE_ERROR,
584 "X11SD_SetupSharedSegment shmat has failed: %s",
585 strerror(errno));
586 free((void *)shminfo);
587 XDestroyImage(img);
588 return NULL;
589 }
590
591 shminfo->readOnly = False;
592
593 resetXShmAttachFailed();
594 EXEC_WITH_XERROR_HANDLER(J2DXErrHandler,
595 XShmAttach(awt_display, shminfo));
596
597 /*
598 * Once the XSync round trip has finished then we
599 * can get rid of the id so that this segment does not stick
600 * around after we go away, holding system resources.
601 */
602 shmctl(shminfo->shmid, IPC_RMID, 0);
603
604 if (isXShmAttachFailed() == JNI_TRUE) {
605 J2dRlsTraceLn1(J2D_TRACE_ERROR,
606 "X11SD_SetupSharedSegment XShmAttach has failed: %s",
607 strerror(errno));
608 shmdt(shminfo->shmaddr);
609 free((void *)shminfo);
610 XDestroyImage(img);
611 return NULL;
612 }
613
614 img->data = shminfo->shmaddr;
615 img->obdata = (char *)shminfo;
616
617 return img;
618 }
619
620 XImage* X11SD_GetSharedImage(X11SDOps *xsdo, jint width, jint height,
621 jint maxWidth, jint maxHeight, jboolean readBits)
622 {
623 XImage * retImage = NULL;
624 if (cachedXImage != NULL &&
625 X11SD_CachedXImageFits(width, height, maxWidth, maxHeight,
626 xsdo->depth, readBits)) {
627 /* sync so previous data gets flushed */
628 XSync(awt_display, False);
629 retImage = cachedXImage;
630 cachedXImage = (XImage *)NULL;
631 } else if (width * height * xsdo->depth > 0x10000) {
632 retImage = X11SD_CreateSharedImage(xsdo, width, height);
633 }
634 return retImage;
635 }
636
637 Drawable X11SD_CreateSharedPixmap(X11SDOps *xsdo)
638 {
639 XShmSegmentInfo *shminfo;
640 XImage *img = NULL;
641 Drawable pixmap;
642 int scan;
643 int width = xsdo->pmWidth;
644 int height = xsdo->pmHeight;
645
646 if (xsdo->shmPMData.pmSize < 0x10000) {
647 /* only use shared mem pixmaps for relatively big images */
648 return 0;
649 }
650
651 /* need to create shared(!) image to get bytes_per_line */
652 img = X11SD_CreateSharedImage(xsdo, width, height);
653 if (img == NULL) {
654 return 0;
655 }
656 scan = img->bytes_per_line;
657 shminfo = (XShmSegmentInfo*)img->obdata;
658 XFree(img);
659
660 pixmap =
661 XShmCreatePixmap(awt_display,
662 RootWindow(awt_display,
663 xsdo->configData->awt_visInfo.screen),
664 shminfo->shmaddr, shminfo,
665 width, height, xsdo->depth);
666 if (pixmap == 0) {
667 X11SD_DropSharedSegment(shminfo);
668 return 0;
669 }
670
671 xsdo->shmPMData.shmSegInfo = shminfo;
672 xsdo->shmPMData.bytesPerLine = scan;
673 return pixmap;
674 }
675
676 void X11SD_PuntPixmap(X11SDOps *xsdo, jint width, jint height)
677 {
678
679 if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
680 return;
681 }
682
683 /* we wouldn't be here if it's a shared pixmap, so no check
684 * for !usingShmPixmap.
685 */
686
687 xsdo->shmPMData.numBltsSinceRead = 0;
688
689 xsdo->shmPMData.pixelsReadSinceBlt += width * height;
690 if (xsdo->shmPMData.pixelsReadSinceBlt >
691 xsdo->shmPMData.pixelsReadThreshold) {
692 if (!xsdo->shmPMData.shmPixmap) {
693 xsdo->shmPMData.shmPixmap =
694 X11SD_CreateSharedPixmap(xsdo);
695 }
696 if (xsdo->shmPMData.shmPixmap) {
697 GC xgc = XCreateGC(awt_display, xsdo->shmPMData.shmPixmap, 0L, NULL);
698 if (xgc != NULL) {
699 xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
700 xsdo->drawable = xsdo->shmPMData.shmPixmap;
701 XCopyArea(awt_display,
702 xsdo->shmPMData.pixmap, xsdo->drawable, xgc,
703 0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
704 XSync(awt_display, False);
705 xsdo->shmPMData.xRequestSent = JNI_FALSE;
706 XFreeGC(awt_display, xgc);
707 }
708 }
709 }
710 }
711
712 void X11SD_UnPuntPixmap(X11SDOps *xsdo)
713 {
714 if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
715 return;
716 }
717 xsdo->shmPMData.pixelsReadSinceBlt = 0;
718 if (xsdo->shmPMData.numBltsSinceRead >=
719 xsdo->shmPMData.numBltsThreshold)
720 {
721 if (xsdo->shmPMData.usingShmPixmap) {
722 if (!xsdo->shmPMData.pixmap) {
723 xsdo->shmPMData.pixmap =
724 XCreatePixmap(awt_display,
725 RootWindow(awt_display,
726 xsdo->configData->awt_visInfo.screen),
727 xsdo->pmWidth, xsdo->pmHeight, xsdo->depth);
728 }
729 if (xsdo->shmPMData.pixmap) {
730 GC xgc = XCreateGC(awt_display, xsdo->shmPMData.pixmap, 0L, NULL);
731 if (xgc != NULL) {
732 xsdo->drawable = xsdo->shmPMData.pixmap;
733 XCopyArea(awt_display,
734 xsdo->shmPMData.shmPixmap, xsdo->drawable, xgc,
735 0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
736 XSync(awt_display, False);
737 XFreeGC(awt_display, xgc);
738 xsdo->shmPMData.xRequestSent = JNI_FALSE;
739 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
740 xsdo->shmPMData.numBltsThreshold *= 2;
741 }
742 }
743 }
744 } else {
745 xsdo->shmPMData.numBltsSinceRead++;
746 }
747 }
748
749 /**
750 * Determines if the cached image can be used for current operation.
751 * If the image is to be used to be read into by XShmGetImage,
752 * it must be close enough to avoid excessive reading from the screen;
753 * otherwise it should just be at least the size requested.
754 */
755 jboolean X11SD_CachedXImageFits(jint width, jint height, jint maxWidth,
756 jint maxHeight, jint depth, jboolean readBits)
757 {
758 /* we assume here that the cached image exists */
759 jint imgWidth = cachedXImage->width;
760 jint imgHeight = cachedXImage->height;
761
762 if (imgWidth < width || imgHeight < height || depth != cachedXImage->depth) {
763 /* doesn't fit if any of the cached image dimensions is smaller
764 or the depths are different */
765 return JNI_FALSE;
766 }
767
768 if (!readBits) {
769 /* Not reading from this image, so any image at least of the
770 size requested will do */
771 return JNI_TRUE;
772 }
773
774 if ((imgWidth < width + 64) && (imgHeight < height + 64)
775 && imgWidth <= maxWidth && imgHeight <= maxHeight)
776 {
777 /* Cached image's width/height shouldn't be more than 64 pixels
778 * larger than requested, because the region in XShmGetImage
779 * can't be specified and we don't want to read too much.
780 * Furthermore it has to be smaller than maxWidth/Height
781 * so drawables are not read out of bounds.
782 */
783 return JNI_TRUE;
784 }
785
786 return JNI_FALSE;
787 }
788 #endif /* MITSHM */
789
790 jint X11SD_InitWindow(JNIEnv *env, X11SDOps *xsdo)
791 {
792 if (xsdo->isPixmap == JNI_TRUE) {
793 return SD_FAILURE;
794 }
795 #ifndef XAWT
796 if (!XtIsRealized(xsdo->widget)) {
797 J2dTraceLn(J2D_TRACE_WARNING, "X11SD_InitWindow: widget is unrealized");
798 /* AWT_UNLOCK(); unlock it in caller */
799 return SD_FAILURE;
800 }
801 xsdo->drawable = XtWindow(xsdo->widget);
802 #endif
803 xsdo->cData = xsdo->configData->color_data;
804
805 return SD_SUCCESS;
806 }
807
808 static jint X11SD_Lock(JNIEnv *env,
809 SurfaceDataOps *ops,
810 SurfaceDataRasInfo *pRasInfo,
811 jint lockflags)
812 {
813 X11SDOps *xsdo = (X11SDOps *) ops;
814 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
815 int ret = SD_SUCCESS;
816
817 AWT_LOCK();
818
819 if (xsdo->invalid) {
820 AWT_UNLOCK();
821 SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
822 return SD_FAILURE;
823 }
824 #ifdef XAWT
825 xsdo->cData = xsdo->configData->color_data;
826 #endif
827 if (xsdo->drawable == 0 && X11SD_InitWindow(env, xsdo) == SD_FAILURE) {
828 AWT_UNLOCK();
829 return SD_FAILURE;
830 }
831 if ((lockflags & SD_LOCK_LUT) != 0 &&
832 (xsdo->cData == NULL ||
833 xsdo->cData->awt_icmLUT == NULL))
834 {
835 AWT_UNLOCK();
836 JNU_ThrowNullPointerException(env, "colormap lookup table");
837 return SD_FAILURE;
838 }
839 if ((lockflags & SD_LOCK_INVCOLOR) != 0 &&
840 (xsdo->cData == NULL ||
841 xsdo->cData->img_clr_tbl == NULL ||
842 xsdo->cData->img_oda_red == NULL ||
843 xsdo->cData->img_oda_green == NULL ||
844 xsdo->cData->img_oda_blue == NULL))
845 {
846 AWT_UNLOCK();
847 JNU_ThrowNullPointerException(env, "inverse colormap lookup table");
848 return SD_FAILURE;
849 }
850 if ((lockflags & SD_LOCK_INVGRAY) != 0 &&
851 (xsdo->cData == NULL ||
852 xsdo->cData->pGrayInverseLutData == NULL))
853 {
854 AWT_UNLOCK();
855 JNU_ThrowNullPointerException(env, "inverse gray lookup table");
856 return SD_FAILURE;
857 }
858 if (xsdo->dgaAvailable && (lockflags & (SD_LOCK_RD_WR))) {
859 int dgaret;
860
861 dgaret = (*pJDgaInfo->pGetLock)(env, awt_display, &xsdo->dgaDev,
862 xsdo->drawable, &xsdo->surfInfo,
863 pRasInfo->bounds.x1,
864 pRasInfo->bounds.y1,
865 pRasInfo->bounds.x2,
866 pRasInfo->bounds.y2);
867 if (dgaret == JDGA_SUCCESS) {
868 int wx = xsdo->surfInfo.window.lox;
869 int wy = xsdo->surfInfo.window.loy;
870 pRasInfo->bounds.x1 = xsdo->surfInfo.visible.lox - wx;
871 pRasInfo->bounds.y1 = xsdo->surfInfo.visible.loy - wy;
872 pRasInfo->bounds.x2 = xsdo->surfInfo.visible.hix - wx;
873 pRasInfo->bounds.y2 = xsdo->surfInfo.visible.hiy - wy;
874 xpriv->lockType = X11SD_LOCK_BY_DGA;
875 xpriv->lockFlags = lockflags;
876 return SD_SUCCESS;
877 } else if (dgaret == JDGA_UNAVAILABLE) {
878 xsdo->dgaAvailable = JNI_FALSE;
879 }
880 }
881 if (lockflags & SD_LOCK_RD_WR) {
882 if (lockflags & SD_LOCK_FASTEST) {
883 ret = SD_SLOWLOCK;
884 }
885 xpriv->lockType = X11SD_LOCK_BY_XIMAGE;
886 if (xsdo->isPixmap) {
887 #ifdef MITSHM
888 if (xsdo->shmPMData.usingShmPixmap) {
889 xpriv->lockType = X11SD_LOCK_BY_SHMEM;
890 }
891 #endif /* MITSHM */
892 if (pRasInfo->bounds.x1 < 0) {
893 pRasInfo->bounds.x1 = 0;
894 }
895 if (pRasInfo->bounds.y1 < 0) {
896 pRasInfo->bounds.y1 = 0;
897 }
898 if (pRasInfo->bounds.x2 > xsdo->pmWidth) {
899 pRasInfo->bounds.x2 = xsdo->pmWidth;
900 }
901 if (pRasInfo->bounds.y2 > xsdo->pmHeight) {
902 pRasInfo->bounds.y2 = xsdo->pmHeight;
903 }
904 }
905 } else {
906 /* They didn't lock for anything - we won't give them anything */
907 xpriv->lockType = X11SD_LOCK_BY_NULL;
908 }
909 xpriv->lockFlags = lockflags;
910 xpriv->img = NULL;
911
912 return ret;
913 /* AWT_UNLOCK() called in Unlock */
914 }
915
916 static void X11SD_GetRasInfo(JNIEnv *env,
917 SurfaceDataOps *ops,
918 SurfaceDataRasInfo *pRasInfo)
919 {
920 X11SDOps *xsdo = (X11SDOps *) ops;
921 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
922 jint lockFlags = xpriv->lockFlags;
923 jint depth = xsdo->depth;
924 int mult = xsdo->configData->pixelStride;
925
926 if (xsdo->dgaAvailable &&
927 xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
928 (lockFlags & SD_LOCK_FASTEST))
929 {
930 /* Try one more time to use DGA (now with smaller bounds)... */
931 int dgaret;
932
933 dgaret = (*pJDgaInfo->pGetLock)(env, awt_display, &xsdo->dgaDev,
934 xsdo->drawable, &xsdo->surfInfo,
935 pRasInfo->bounds.x1,
936 pRasInfo->bounds.y1,
937 pRasInfo->bounds.x2,
938 pRasInfo->bounds.y2);
939 if (dgaret == JDGA_SUCCESS) {
940 int wx = xsdo->surfInfo.window.lox;
941 int wy = xsdo->surfInfo.window.loy;
942 pRasInfo->bounds.x1 = xsdo->surfInfo.visible.lox - wx;
943 pRasInfo->bounds.y1 = xsdo->surfInfo.visible.loy - wy;
944 pRasInfo->bounds.x2 = xsdo->surfInfo.visible.hix - wx;
945 pRasInfo->bounds.y2 = xsdo->surfInfo.visible.hiy - wy;
946 xpriv->lockType = X11SD_LOCK_BY_DGA;
947 } else if (dgaret == JDGA_UNAVAILABLE) {
948 xsdo->dgaAvailable = JNI_FALSE;
949 }
950 }
951
952 if (xpriv->lockType == X11SD_LOCK_BY_DGA) {
953 int scan = xsdo->surfInfo.surfaceScan;
954 int wx = xsdo->surfInfo.window.lox;
955 int wy = xsdo->surfInfo.window.loy;
956 pRasInfo->rasBase =
957 (void *)(((uintptr_t) xsdo->surfInfo.basePtr) + (scan*wy + wx) * mult);
958 pRasInfo->pixelStride = mult;
959 pRasInfo->pixelBitOffset = 0;
960 pRasInfo->scanStride = scan * mult;
961 #ifdef MITSHM
962 } else if (xpriv->lockType == X11SD_LOCK_BY_SHMEM) {
963 if (xsdo->shmPMData.xRequestSent == JNI_TRUE) {
964 /* need to sync before using shared mem pixmap
965 if any x calls were issued for this pixmap */
966 XSync(awt_display, False);
967 xsdo->shmPMData.xRequestSent = JNI_FALSE;
968 }
969 xpriv->x = pRasInfo->bounds.x1;
970 xpriv->y = pRasInfo->bounds.y1;
971 pRasInfo->rasBase = xsdo->shmPMData.shmSegInfo->shmaddr;
972 pRasInfo->pixelStride = mult;
973 pRasInfo->pixelBitOffset = 0;
974 pRasInfo->scanStride = xsdo->shmPMData.bytesPerLine;
975 #endif /* MITSHM */
976 } else if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE) {
977 int x, y, w, h;
978 x = pRasInfo->bounds.x1;
979 y = pRasInfo->bounds.y1;
980 w = pRasInfo->bounds.x2 - x;
981 h = pRasInfo->bounds.y2 - y;
982
983 xpriv->img = X11SD_GetImage(env, xsdo, &pRasInfo->bounds, lockFlags);
984 if (xpriv->img) {
985 int scan = xpriv->img->bytes_per_line;
986 xpriv->x = x;
987 xpriv->y = y;
988 pRasInfo->rasBase = xpriv->img->data - x * mult - y * scan;
989 pRasInfo->pixelStride = mult;
990 pRasInfo->pixelBitOffset = 0;
991 pRasInfo->scanStride = scan;
992 } else {
993 pRasInfo->rasBase = NULL;
994 pRasInfo->pixelStride = 0;
995 pRasInfo->pixelBitOffset = 0;
996 pRasInfo->scanStride = 0;
997 }
998 } else {
999 /* They didn't lock for anything - we won't give them anything */
1000 pRasInfo->rasBase = NULL;
1001 pRasInfo->pixelStride = 0;
1002 pRasInfo->pixelBitOffset = 0;
1003 pRasInfo->scanStride = 0;
1004 }
1005 if (lockFlags & SD_LOCK_LUT) {
1006 pRasInfo->lutBase = (jint *) xsdo->cData->awt_icmLUT;
1007 pRasInfo->lutSize = xsdo->cData->awt_numICMcolors;
1008 } else {
1009 pRasInfo->lutBase = NULL;
1010 pRasInfo->lutSize = 0;
1011 }
1012 if (lockFlags & SD_LOCK_INVCOLOR) {
1013 pRasInfo->invColorTable = xsdo->cData->img_clr_tbl;
1014 pRasInfo->redErrTable = xsdo->cData->img_oda_red;
1015 pRasInfo->grnErrTable = xsdo->cData->img_oda_green;
1016 pRasInfo->bluErrTable = xsdo->cData->img_oda_blue;
1017 } else {
1018 pRasInfo->invColorTable = NULL;
1019 pRasInfo->redErrTable = NULL;
1020 pRasInfo->grnErrTable = NULL;
1021 pRasInfo->bluErrTable = NULL;
1022 }
1023 if (lockFlags & SD_LOCK_INVGRAY) {
1024 pRasInfo->invGrayTable = xsdo->cData->pGrayInverseLutData;
1025 } else {
1026 pRasInfo->invGrayTable = NULL;
1027 }
1028 }
1029
1030 static void X11SD_Unlock(JNIEnv *env,
1031 SurfaceDataOps *ops,
1032 SurfaceDataRasInfo *pRasInfo)
1033 {
1034 X11SDOps *xsdo = (X11SDOps *) ops;
1035 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
1036
1037 if (xpriv->lockType == X11SD_LOCK_BY_DGA) {
1038 (*pJDgaInfo->pReleaseLock)(env, xsdo->dgaDev, xsdo->drawable);
1039 } else if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
1040 xpriv->img != NULL)
1041 {
1042 if (xpriv->lockFlags & SD_LOCK_WRITE) {
1043 int x = xpriv->x;
1044 int y = xpriv->y;
1045 int w = pRasInfo->bounds.x2 - x;
1046 int h = pRasInfo->bounds.y2 - y;
1047 Drawable drawable = xsdo->drawable;
1048 GC xgc = xsdo->cachedGC;
1049 if (xgc == NULL) {
1050 xsdo->cachedGC = xgc =
1051 XCreateGC(awt_display, drawable, 0L, NULL);
1052 }
1053
1054 if (xpriv->img->byte_order != nativeByteOrder) {
1055 /* switching bytes back in 24 and 32 bpp cases. */
1056 /* For 16 bit XLib will switch for us. */
1057 if (xsdo->depth > 16) {
1058 X11SD_SwapBytes(xsdo, xpriv->img, xsdo->depth,
1059 xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
1060 }
1061 }
1062
1063 #ifdef MITSHM
1064 if (xpriv->img->obdata != NULL) {
1065 XShmPutImage(awt_display, drawable, xgc,
1066 xpriv->img, 0, 0, x, y, w, h, False);
1067 XFlush(awt_display);
1068 } else {
1069 XPutImage(awt_display, drawable, xgc,
1070 xpriv->img, 0, 0, x, y, w, h);
1071 }
1072 if (xsdo->shmPMData.usingShmPixmap) {
1073 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1074 }
1075 #else
1076 XPutImage(awt_display, drawable, xgc,
1077 xpriv->img, 0, 0, x, y, w, h);
1078 #endif /* MITSHM */
1079
1080 (*pJDgaInfo->pXRequestSent)(env, xsdo->dgaDev, drawable);
1081 }
1082 X11SD_DisposeOrCacheXImage(xpriv->img);
1083 xpriv->img = (XImage *)NULL;
1084 }
1085 /* the background pixel is not valid anymore */
1086 if (xpriv->lockFlags & SD_LOCK_WRITE) {
1087 xsdo->isBgInitialized = JNI_FALSE;
1088 }
1089 xpriv->lockType = X11SD_LOCK_UNLOCKED;
1090 AWT_UNLOCK();
1091 }
1092
1093 static int
1094 X11SD_ClipToRoot(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
1095 X11SDOps *xsdo)
1096 {
1097 Position x1=0, y1=0, x2=0, y2=0;
1098 int tmpx, tmpy;
1099 Window tmpchild;
1100
1101 #ifndef XAWT
1102 Widget w = xsdo->widget;
1103
1104 x1 = y1 = 0;
1105 for (; w != NULL && ! XtIsShell(w); w = w->core.parent) {
1106 x1 += w->core.x + w->core.border_width;
1107 y1 += w->core.y + w->core.border_width;
1108 }
1109 if (w == NULL) {
1110 return FALSE;
1111 }
1112
1113 /*
1114 * REMIND: We should not be offsetting here by border_width
1115 * but for some unknown reason if we do not do that the
1116 * results will be off exactly by border_width. We were unable
1117 * to find cause of this.
1118 */
1119 (void) XTranslateCoordinates(XtDisplay(w), XtWindow(w),
1120 RootWindowOfScreen(XtScreen(w)),
1121 (int) w->core.border_width,
1122 (int) w->core.border_width,
1123 &tmpx, &tmpy, &tmpchild);
1124 #else
1125 Window window = (Window)(xsdo->drawable); /* is always a Window */
1126 XWindowAttributes winAttr;
1127
1128 Status status = XGetWindowAttributes(awt_display, window, &winAttr);
1129 if (status == 0) {
1130 /* Failure, X window no longer valid. */
1131 return FALSE;
1132 }
1133 if (!XTranslateCoordinates(awt_display, window,
1134 RootWindowOfScreen(winAttr.screen),
1135 0, 0, &tmpx, &tmpy, &tmpchild)) {
1136 return FALSE;
1137 }
1138 #endif
1139
1140 x1 = -(x1 + tmpx);
1141 y1 = -(y1 + tmpy);
1142
1143 x2 = x1 + DisplayWidth(awt_display, xsdo->configData->awt_visInfo.screen);
1144 y2 = y1 + DisplayHeight(awt_display, xsdo->configData->awt_visInfo.screen);
1145
1146 x1 = MAX(bounds->x1, x1);
1147 y1 = MAX(bounds->y1, y1);
1148 x2 = MIN(bounds->x2, x2);
1149 y2 = MIN(bounds->y2, y2);
1150 if ((x1 >= x2) || (y1 >= y2)) {
1151 return FALSE;
1152 }
1153 b->x1 = x1;
1154 b->y1 = y1;
1155 b->x2 = x2;
1156 b->y2 = y2;
1157
1158 return TRUE;
1159 }
1160
1161 /*
1162 * x1, y1, x2, y2 - our rectangle in the coord system of
1163 * the widget
1164 * px1, xy1, px2, py2 - current parent rect coords in the
1165 * same system
1166 */
1167 static int
1168 X11SD_FindClip(SurfaceDataBounds *b, SurfaceDataBounds *bounds, X11SDOps *xsdo)
1169 {
1170 #ifndef XAWT
1171 int x1, y1, x2, y2, px1, py1, px2, py2, child_x, child_y;
1172 Widget current_widget, child_widget;
1173
1174 XWindowAttributes attr;
1175 Window ignore_root, current_window, *ignore_children;
1176 unsigned int pborder, ignore_uint;
1177
1178 x1 = bounds->x1;
1179 y1 = bounds->y1;
1180 x2 = bounds->x2;
1181 y2 = bounds->y2;
1182
1183 px1 = py1 = 0;
1184
1185 child_widget = xsdo->widget;
1186 current_widget = XtParent(xsdo->widget);
1187 while (current_widget != NULL && !XtIsShell(current_widget)) {
1188 px1 = px1 - (child_widget->core.x + child_widget->core.border_width);
1189 py1 = py1 - (child_widget->core.y + child_widget->core.border_width);
1190 px2 = px1 + current_widget->core.width;
1191 py2 = py1 + current_widget->core.height;
1192 x1 = MAX(x1, px1);
1193 y1 = MAX(y1, py1);
1194 x2 = MIN(x2, px2);
1195 y2 = MIN(y2, py2);
1196 if ((x1 >= x2) || (y1 >= y2)) {
1197 return FALSE;
1198 }
1199
1200 child_widget = current_widget;
1201 current_widget = current_widget->core.parent;
1202 }
1203
1204 if (current_widget == NULL) {
1205 XQueryTree(awt_display,
1206 XtWindow(child_widget),
1207 &ignore_root,
1208 ¤t_window,
1209 &ignore_children,
1210 &ignore_uint);
1211 XFree(ignore_children);
1212 } else {
1213 current_window = XtWindow(current_widget);
1214 }
1215
1216 child_x = child_widget->core.x + child_widget->core.border_width;
1217 child_y = child_widget->core.y + child_widget->core.border_width;
1218 while (current_window != 0) {
1219 px1 = px1 - child_x;
1220 py1 = py1 - child_y;
1221 if (!XGetGeometry(awt_display, current_window, &ignore_root,
1222 &child_x, &child_y,
1223 (unsigned int *)&px2, (unsigned int *)&py2,
1224 &pborder, &ignore_uint)) {
1225 return FALSE;
1226 }
1227 child_x += pborder;
1228 child_y += pborder;
1229 px2 += px1;
1230 py2 += py1;
1231
1232 x1 = MAX(x1, px1);
1233 y1 = MAX(y1, py1);
1234 x2 = MIN(x2, px2);
1235 y2 = MIN(y2, py2);
1236 if ((x1 >= x2) || (y1 >= y2)) {
1237 return FALSE;
1238 }
1239 XQueryTree(awt_display,
1240 current_window,
1241 &ignore_root,
1242 ¤t_window,
1243 &ignore_children,
1244 &ignore_uint);
1245 XFree(ignore_children);
1246 }
1247
1248 b->x1 = x1;
1249 b->y1 = y1;
1250 b->x2 = x2;
1251 b->y2 = y2;
1252 #endif
1253 return TRUE;
1254 }
1255
1256 static void
1257 X11SD_SwapBytes(X11SDOps *xsdo, XImage * img, int depth, int bpp) {
1258 int lengthInBytes = img->height * img->bytes_per_line;
1259 int i;
1260
1261 switch (depth) {
1262 case 12:
1263 case 15:
1264 case 16:
1265 {
1266 /* AB -> BA */
1267 unsigned short *d = (unsigned short *)img->data;
1268 unsigned short t;
1269 for (i = 0; i < lengthInBytes/2; i++) {
1270 t = *d;
1271 *d++ = (t >> 8) | (t << 8);
1272 }
1273 img->byte_order = nativeByteOrder;
1274 img->bitmap_bit_order = nativeByteOrder;
1275 break;
1276 }
1277 case 24:
1278 {
1279 /* ABC -> CBA */
1280 if (bpp == 24) {
1281 // 4517321: Only swap if we have a "real" ThreeByteBgr
1282 // visual (denoted by a red_mask of 0xff). Due to ambiguity
1283 // in the X11 spec, it appears that the swap is not required
1284 // on Linux configurations that use 24 bits per pixel (denoted
1285 // by a red_mask of 0xff0000).
1286 if (xsdo->configData->awt_visInfo.red_mask == 0xff) {
1287 int scan = img->bytes_per_line;
1288 unsigned char *d = (unsigned char *) img->data;
1289 unsigned char *d1;
1290 unsigned int t;
1291 int j;
1292
1293 for (i = 0; i < img->height; i++, d += scan) {
1294 d1 = d;
1295 for (j = 0; j < img->width; j++, d1 += 3) {
1296 /* not obvious opt from XLib src */
1297 t = d1[0]; d1[0] = d1[2]; d1[2] = t;
1298 }
1299 }
1300 }
1301 break;
1302 }
1303 }
1304 /* FALL THROUGH for 32-bit case */
1305 case 32:
1306 {
1307 /* ABCD -> DCBA */
1308 unsigned int *d = (unsigned int *) img->data;
1309 unsigned int t;
1310 for (i = 0; i < lengthInBytes/4; i++) {
1311 t = *d;
1312 *d++ = ((t >> 24) |
1313 ((t >> 8) & 0xff00) |
1314 ((t & 0xff00) << 8) |
1315 (t << 24));
1316 }
1317 break;
1318 }
1319 }
1320 }
1321
1322 static XImage * X11SD_GetImage(JNIEnv *env, X11SDOps *xsdo,
1323 SurfaceDataBounds *bounds,
1324 jint lockFlags)
1325 {
1326 int x, y, w, h, maxWidth, maxHeight;
1327 int scan;
1328 XImage * img = NULL;
1329 Drawable drawable;
1330 int depth = xsdo->depth;
1331 int mult = xsdo->configData->pixelStride;
1332 int pad = (mult == 3) ? 32 : mult * 8; // pad must be 8, 16, or 32
1333 jboolean readBits = lockFlags & SD_LOCK_NEED_PIXELS;
1334
1335 x = bounds->x1;
1336 y = bounds->y1;
1337 w = bounds->x2 - x;
1338 h = bounds->y2 - y;
1339
1340 #ifdef MITSHM
1341 if (useMitShmExt == CAN_USE_MITSHM) {
1342 if (xsdo->isPixmap) {
1343 if (readBits) {
1344 X11SD_PuntPixmap(xsdo, w, h);
1345 }
1346 maxWidth = xsdo->pmWidth;
1347 maxHeight = xsdo->pmHeight;
1348 } else {
1349 XWindowAttributes winAttr;
1350 if (XGetWindowAttributes(awt_display,
1351 (Window) xsdo->drawable, &winAttr) != 0) {
1352 maxWidth = winAttr.width;
1353 maxHeight = winAttr.height;
1354 } else {
1355 /* XGWA failed which isn't a good thing. Defaulting to using
1356 * x,y means that after the subtraction of these we will use
1357 * w=0, h=0 which is a reasonable default on such a failure.
1358 */
1359 maxWidth = x;
1360 maxHeight = y;
1361 }
1362 }
1363 maxWidth -= x;
1364 maxHeight -= y;
1365
1366 img = X11SD_GetSharedImage(xsdo, w, h, maxWidth, maxHeight, readBits);
1367 }
1368 #endif /* MITSHM */
1369 drawable = xsdo->drawable;
1370
1371 if (readBits) {
1372 #ifdef MITSHM
1373 if (img != NULL) {
1374 if (!XShmGetImage(awt_display, drawable, img, x, y, -1)) {
1375 X11SD_DisposeOrCacheXImage(img);
1376 img = NULL;
1377 }
1378 }
1379 if (img == NULL) {
1380 img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
1381 if (img != NULL) {
1382 img->obdata = NULL;
1383 }
1384 }
1385 #else
1386 img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
1387 #endif /* MITSHM */
1388 if (img == NULL) {
1389 SurfaceDataBounds temp;
1390 img = XCreateImage(awt_display,
1391 xsdo->configData->awt_visInfo.visual,
1392 depth, ZPixmap, 0, NULL, w, h, pad, 0);
1393 if (img == NULL) {
1394 return NULL;
1395 }
1396
1397 scan = img->bytes_per_line;
1398 img->data = malloc(h * scan);
1399 if (img->data == NULL) {
1400 XFree(img);
1401 return NULL;
1402 }
1403
1404 if (xsdo->isPixmap == JNI_FALSE &&
1405 X11SD_ClipToRoot(&temp, bounds, xsdo)) {
1406
1407 XImage * temp_image;
1408 temp_image = XGetImage(awt_display, drawable,
1409 temp.x1, temp.y1,
1410 temp.x2 - temp.x1,
1411 temp.y2 - temp.y1,
1412 -1, ZPixmap);
1413 if (temp_image == NULL) {
1414 XGrabServer(awt_display);
1415 if (X11SD_FindClip(&temp, bounds, xsdo)) {
1416 temp_image =
1417 XGetImage(awt_display, drawable,
1418 temp.x1, temp.y1,
1419 temp.x2 - temp.x1,
1420 temp.y2 - temp.y1,
1421 -1, ZPixmap);
1422 }
1423 XUngrabServer(awt_display);
1424 /* Workaround for bug 5039226 */
1425 XSync(awt_display, False);
1426 }
1427 if (temp_image != NULL) {
1428 int temp_scan, bytes_to_copy;
1429 char * img_addr, * temp_addr;
1430 int i;
1431
1432 img_addr = img->data +
1433 (temp.y1 - y) * scan + (temp.x1 - x) * mult;
1434 temp_scan = temp_image->bytes_per_line;
1435 temp_addr = temp_image->data;
1436 bytes_to_copy = (temp.x2 - temp.x1) * mult;
1437 for (i = temp.y1; i < temp.y2; i++) {
1438 memcpy(img_addr, temp_addr, bytes_to_copy);
1439 img_addr += scan;
1440 temp_addr += temp_scan;
1441 }
1442 XDestroyImage(temp_image);
1443 }
1444 }
1445 img->obdata = NULL;
1446 }
1447 if (depth > 8 && img->byte_order != nativeByteOrder) {
1448 X11SD_SwapBytes(xsdo, img, depth,
1449 xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
1450 }
1451 } else {
1452 /*
1453 * REMIND: This might be better to move to the Lock function
1454 * to avoid lengthy I/O pauses inside what may be a critical
1455 * section. This will be more critical when SD_LOCK_READ is
1456 * implemented. Another solution is to cache the pixels
1457 * to avoid reading for every operation.
1458 */
1459 if (img == NULL) {
1460 img = XCreateImage(awt_display,
1461 xsdo->configData->awt_visInfo.visual,
1462 depth, ZPixmap, 0, NULL, w, h, pad, 0);
1463 if (img == NULL) {
1464 return NULL;
1465 }
1466
1467 img->data = malloc(h * img->bytes_per_line);
1468 if (img->data == NULL) {
1469 XFree(img);
1470 return NULL;
1471 }
1472
1473 img->obdata = NULL;
1474
1475 if (img->byte_order != nativeByteOrder &&
1476 (depth == 15 || depth == 16 || depth == 12)) {
1477 /* bytes will be swapped by XLib. */
1478 img->byte_order = nativeByteOrder;
1479 img->bitmap_bit_order = nativeByteOrder;
1480 }
1481 }
1482 }
1483 return img;
1484 }
1485
1486 void X11SD_DisposeOrCacheXImage(XImage * image) {
1487 /* REMIND: might want to check if the new image worth caching. */
1488 /* Cache only shared images. Passed image is assumed to be non-null. */
1489 if (image->obdata != NULL) {
1490 if (cachedXImage != NULL) {
1491 X11SD_DisposeXImage(cachedXImage);
1492 }
1493 cachedXImage = image;
1494 } else {
1495 X11SD_DisposeXImage(image);
1496 }
1497 }
1498
1499 void X11SD_DisposeXImage(XImage * image) {
1500 if (image != NULL) {
1501 #ifdef MITSHM
1502 if (image->obdata != NULL) {
1503 X11SD_DropSharedSegment((XShmSegmentInfo*)image->obdata);
1504 image->obdata = NULL;
1505 }
1506 #endif /* MITSHM */
1507 XDestroyImage(image);
1508 }
1509 }
1510
1511 static JDgaStatus
1512 GetLockStub(JNIEnv *env, Display *display, void **dgaDev,
1513 Drawable d, JDgaSurfaceInfo *pSurface,
1514 jint lox, jint loy, jint hix, jint hiy)
1515 {
1516 return JDGA_UNAVAILABLE;
1517 }
1518
1519 static JDgaStatus
1520 ReleaseLockStub(JNIEnv *env, void *dgaDev, Drawable d)
1521 {
1522 return JDGA_FAILED;
1523 }
1524
1525 static void
1526 XRequestSentStub(JNIEnv *env, void *dgaDev, Drawable d)
1527 {
1528 }
1529
1530 static void
1531 LibDisposeStub(JNIEnv *env)
1532 {
1533 }
1534
1535 static JDgaLibInfo DgaLibInfoStub = {
1536 NULL,
1537 GetLockStub,
1538 ReleaseLockStub,
1539 XRequestSentStub,
1540 LibDisposeStub,
1541 };
1542
1543 void X11SD_LibDispose(JNIEnv *env) {
1544 AWT_LOCK();
1545 if (pJDgaInfo != NULL) {
1546 pJDgaInfo->pLibDispose(env);
1547 pJDgaInfo = &DgaLibInfoStub;
1548 }
1549 AWT_UNLOCK();
1550 }
1551
1552 void
1553 X11SD_DirectRenderNotify(JNIEnv *env, X11SDOps *xsdo)
1554 {
1555 #ifdef MITSHM
1556 if (xsdo->shmPMData.usingShmPixmap) {
1557 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1558 }
1559 #endif /* MITSHM */
1560 (*pJDgaInfo->pXRequestSent)(env, xsdo->dgaDev, xsdo->drawable);
1561 awt_output_flush();
1562 }
1563
1564 /*
1565 * Sets transparent pixels in the pixmap to
1566 * the specified solid background color and returns it.
1567 * Doesn't update source pixmap unless the color of the
1568 * transparent pixels is different from the specified color.
1569 *
1570 * Note: The AWT lock must be held by the current thread
1571 * while calling into this method.
1572 */
1573 static Drawable
1574 X11SD_GetPixmapWithBg(JNIEnv *env, X11SDOps *xsdo, jint pixel)
1575 {
1576 /* assert AWT_CHECK_HAVE_LOCK(); */
1577
1578 if (xsdo->invalid) {
1579 AWT_UNLOCK();
1580 SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
1581 return 0;
1582 }
1583
1584 /* the image doesn't have transparency, just return it */
1585 if (xsdo->bitmask == 0) {
1586 /* don't need to unlock here, the caller will unlock through
1587 the release call */
1588 return xsdo->drawable;
1589 }
1590
1591 /* Check if current color of the transparent pixels is different
1592 from the specified one */
1593 if (xsdo->isBgInitialized == JNI_FALSE || xsdo->bgPixel != pixel) {
1594 GC srcGC;
1595 GC bmGC;
1596
1597 if (xsdo->drawable == 0) {
1598 AWT_UNLOCK();
1599 return 0;
1600 }
1601
1602 bmGC = XCreateGC(awt_display, xsdo->bitmask, 0, NULL);
1603 if (bmGC == NULL) {
1604 AWT_UNLOCK();
1605 return 0;
1606 }
1607
1608 /* invert the bitmask */
1609 XSetFunction(awt_display, bmGC, GXxor);
1610 XSetForeground(awt_display, bmGC, 1);
1611 XFillRectangle(awt_display, xsdo->bitmask, bmGC,
1612 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1613
1614 srcGC = XCreateGC(awt_display, xsdo->drawable, 0L, NULL);
1615 if (srcGC == NULL) {
1616 XFreeGC(awt_display, bmGC);
1617 AWT_UNLOCK();
1618 return 0;
1619 }
1620
1621 /* set transparent pixels in the source pm to the bg color */
1622 XSetClipMask(awt_display, srcGC, xsdo->bitmask);
1623 XSetForeground(awt_display, srcGC, pixel);
1624 XFillRectangle(awt_display, xsdo->drawable, srcGC,
1625 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1626
1627 /* invert the mask back */
1628 XFillRectangle(awt_display, xsdo->bitmask, bmGC,
1629 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1630
1631 XFreeGC(awt_display, bmGC);
1632 XFreeGC(awt_display, srcGC);
1633 xsdo->bgPixel = pixel;
1634 xsdo->isBgInitialized = JNI_TRUE;
1635 }
1636
1637 return xsdo->drawable;
1638 }
1639
1640 static void
1641 X11SD_ReleasePixmapWithBg(JNIEnv *env, X11SDOps *xsdo)
1642 {
1643 #ifdef MITSHM
1644 if (xsdo->shmPMData.usingShmPixmap) {
1645 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1646 }
1647 #endif /* MITSHM */
1648 }
1649
1650 #endif /* !HEADLESS */
1651
1652 /*
1653 * Class: sun_java2d_x11_X11SurfaceData
1654 * Method: XCreateGC
1655 * Signature: (I)J
1656 */
1657 JNIEXPORT jlong JNICALL
1658 Java_sun_java2d_x11_XSurfaceData_XCreateGC
1659 (JNIEnv *env, jclass xsd, jlong pXSData)
1660 {
1661 jlong ret;
1662
1663 #ifndef HEADLESS
1664 X11SDOps *xsdo;
1665
1666 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XCreateGC");
1667
1668 xsdo = (X11SDOps *) pXSData;
1669 if (xsdo == NULL) {
1670 return 0L;
1671 }
1672
1673 xsdo->javaGC = XCreateGC(awt_display, xsdo->drawable, 0, NULL);
1674 ret = (jlong) xsdo->javaGC;
1675 #else /* !HEADLESS */
1676 ret = 0L;
1677 #endif /* !HEADLESS */
1678
1679 return ret;
1680 }
1681
1682 /*
1683 * Class: sun_java2d_x11_X11SurfaceData
1684 * Method: XResetClip
1685 * Signature: (JIIIILsun/java2d/pipe/Region;)V
1686 */
1687 JNIEXPORT void JNICALL
1688 Java_sun_java2d_x11_XSurfaceData_XResetClip
1689 (JNIEnv *env, jclass xsd, jlong xgc)
1690 {
1691 #ifndef HEADLESS
1692 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XResetClip");
1693 XSetClipMask(awt_display, (GC) xgc, None);
1694 #endif /* !HEADLESS */
1695 }
1696
1697 /*
1698 * Class: sun_java2d_x11_X11SurfaceData
1699 * Method: XSetClip
1700 * Signature: (JIIIILsun/java2d/pipe/Region;)V
1701 */
1702 JNIEXPORT void JNICALL
1703 Java_sun_java2d_x11_XSurfaceData_XSetClip
1704 (JNIEnv *env, jclass xsd, jlong xgc,
1705 jint x1, jint y1, jint x2, jint y2,
1706 jobject complexclip)
1707 {
1708 #ifndef HEADLESS
1709 int numrects;
1710 XRectangle rects[256];
1711 XRectangle *pRect = rects;
1712
1713 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetClip");
1714
1715 numrects = RegionToYXBandedRectangles(env,
1716 x1, y1, x2, y2, complexclip,
1717 &pRect, 256);
1718
1719 XSetClipRectangles(awt_display, (GC) xgc, 0, 0, pRect, numrects, YXBanded);
1720
1721 if (pRect != rects) {
1722 free(pRect);
1723 }
1724 #endif /* !HEADLESS */
1725 }
1726
1727 /*
1728 * Class: sun_java2d_x11_X11SurfaceData
1729 * Method: XSetCopyMode
1730 * Signature: (J)V
1731 */
1732 JNIEXPORT void JNICALL
1733 Java_sun_java2d_x11_X11SurfaceData_XSetCopyMode
1734 (JNIEnv *env, jclass xsd, jlong xgc)
1735 {
1736 #ifndef HEADLESS
1737 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetCopyMode");
1738 XSetFunction(awt_display, (GC) xgc, GXcopy);
1739 #endif /* !HEADLESS */
1740 }
1741
1742 /*
1743 * Class: sun_java2d_x11_X11SurfaceData
1744 * Method: XSetXorMode
1745 * Signature: (J)V
1746 */
1747 JNIEXPORT void JNICALL
1748 Java_sun_java2d_x11_X11SurfaceData_XSetXorMode
1749 (JNIEnv *env, jclass xr, jlong xgc)
1750 {
1751 #ifndef HEADLESS
1752 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetXorMode");
1753 XSetFunction(awt_display, (GC) xgc, GXxor);
1754 #endif /* !HEADLESS */
1755 }
1756
1757 /*
1758 * Class: sun_java2d_x11_X11SurfaceData
1759 * Method: XSetForeground
1760 * Signature: (JI)V
1761 */
1762 JNIEXPORT void JNICALL
1763 Java_sun_java2d_x11_X11SurfaceData_XSetForeground
1764 (JNIEnv *env, jclass xsd, jlong xgc, jint pixel)
1765 {
1766 #ifndef HEADLESS
1767 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetForeground");
1768 XSetForeground(awt_display, (GC) xgc, pixel);
1769 #endif /* !HEADLESS */
1770 }
1771
1772 /*
1773 * Class: sun_java2d_x11_X11SurfaceData
1774 * Method: XSetGraphicsExposures
1775 * Signature: (JZ)V
1776 */
1777 JNIEXPORT void JNICALL
1778 Java_sun_java2d_x11_XSurfaceData_XSetGraphicsExposures
1779 (JNIEnv *env, jclass xsd, jlong xgc, jboolean needExposures)
1780 {
1781 #ifndef HEADLESS
1782 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetGraphicsExposures");
1783 XSetGraphicsExposures(awt_display, (GC) xgc, needExposures ? True : False);
1784 #endif /* !HEADLESS */
1785 }