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