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