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 /*
442 * width , height must be nonzero otherwise XCreatePixmap
443 * generates BadValue in error_handler
444 */
445 if (width <= 0 || height <= 0) {
446 JNU_ThrowOutOfMemoryError(env,
447 "Can't create offscreen surface");
448 return JNI_FALSE;
449 }
450 xsdo->isPixmap = JNI_TRUE;
451 /* REMIND: workaround for bug 4420220 on pgx32 boards:
452 don't use DGA with pixmaps unless USE_DGA_PIXMAPS is set.
453 */
454 xsdo->dgaAvailable = useDGAWithPixmaps;
455
456 xsdo->pmWidth = width;
457 xsdo->pmHeight = height;
458
459 #ifdef MITSHM
460 xsdo->shmPMData.pmSize = width * height * depth;
461 xsdo->shmPMData.pixelsReadThreshold = width * height / 8;
462 if (forceSharedPixmaps) {
463 AWT_LOCK();
464 xsdo->drawable = X11SD_CreateSharedPixmap(xsdo);
465 AWT_UNLOCK();
466 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE);
467 if (xsdo->drawable) {
468 xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
469 xsdo->shmPMData.shmPixmap = xsdo->drawable;
470 return JNI_TRUE;
471 }
472 }
473 #endif /* MITSHM */
474
475 AWT_LOCK();
476 xsdo->drawable =
477 XCreatePixmap(awt_display,
478 RootWindow(awt_display,
479 xsdo->configData->awt_visInfo.screen),
480 width, height, depth);
481 AWT_UNLOCK();
482 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE);
483 #ifdef MITSHM
484 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
485 xsdo->shmPMData.pixmap = xsdo->drawable;
486 #endif /* MITSHM */
487 }
488 if (xsdo->drawable == 0) {
489 JNU_ThrowOutOfMemoryError(env,
490 "Can't create offscreen surface");
491 return JNI_FALSE;
492 }
493
494 #endif /* !HEADLESS */
495 return JNI_TRUE;
496 }
497
498
499 /*
500 * Class: sun_java2d_x11_X11SurfaceData
501 * Method: initSurface
502 * Signature: ()V
503 */
504 JNIEXPORT void JNICALL
505 Java_sun_java2d_x11_X11SurfaceData_initSurface(JNIEnv *env, jclass xsd,
506 jint depth,
507 jint width, jint height,
508 jlong drawable)
509 {
510 #ifndef HEADLESS
511 X11SDOps *xsdo = X11SurfaceData_GetOps(env, xsd);
512 if (xsdo == NULL) {
513 return;
514 }
515
516 if (xsdo->configData->awt_cmap == (Colormap)NULL) {
517 awtJNI_CreateColorData(env, xsdo->configData, 1);
518 JNU_CHECK_EXCEPTION(env);
519 }
520 /* color_data will be initialized in awtJNI_CreateColorData for
521 8-bit visuals */
522 xsdo->cData = xsdo->configData->color_data;
523
524 XShared_initSurface(env, xsdo, depth, width, height, drawable);
525 xsdo->xrPic = None;
526 #endif /* !HEADLESS */
527 }
528
529 #ifndef HEADLESS
530
531 #ifdef MITSHM
532
533 void X11SD_DropSharedSegment(XShmSegmentInfo *shminfo)
534 {
535 if (shminfo != NULL) {
536 XShmDetach(awt_display, shminfo);
537 shmdt(shminfo->shmaddr);
538 /* REMIND: we don't need shmctl(shminfo->shmid, IPC_RMID, 0); here. */
539 /* Check X11SD_CreateSharedImage() for the explanation */
540 }
541 }
542
543 XImage* X11SD_CreateSharedImage(X11SDOps *xsdo,
544 jint width, jint height)
545 {
546 XImage *img = NULL;
547 XShmSegmentInfo *shminfo;
548
549 shminfo = malloc(sizeof(XShmSegmentInfo));
550 if (shminfo == NULL) {
551 return NULL;
552 }
553 memset(shminfo, 0, sizeof(XShmSegmentInfo));
554
555 img = XShmCreateImage(awt_display, xsdo->configData->awt_visInfo.visual,
556 xsdo->depth, ZPixmap, NULL, shminfo,
557 width, height);
558 if (img == NULL) {
559 free((void *)shminfo);
560 return NULL;
561 }
562 shminfo->shmid =
563 shmget(IPC_PRIVATE, height * img->bytes_per_line,
564 IPC_CREAT|mitShmPermissionMask);
565 if (shminfo->shmid < 0) {
566 J2dRlsTraceLn1(J2D_TRACE_ERROR,
567 "X11SD_SetupSharedSegment shmget has failed: %s",
568 strerror(errno));
569 free((void *)shminfo);
570 XDestroyImage(img);
571 return NULL;
572 }
573
574 shminfo->shmaddr = (char *) shmat(shminfo->shmid, 0, 0);
575 if (shminfo->shmaddr == ((char *) -1)) {
576 shmctl(shminfo->shmid, IPC_RMID, 0);
577 J2dRlsTraceLn1(J2D_TRACE_ERROR,
578 "X11SD_SetupSharedSegment shmat has failed: %s",
579 strerror(errno));
580 free((void *)shminfo);
581 XDestroyImage(img);
582 return NULL;
583 }
584
585 shminfo->readOnly = False;
586
587 resetXShmAttachFailed();
588 EXEC_WITH_XERROR_HANDLER(XShmAttachXErrHandler,
589 XShmAttach(awt_display, shminfo));
590
591 /*
592 * Once the XSync round trip has finished then we
593 * can get rid of the id so that this segment does not stick
594 * around after we go away, holding system resources.
595 */
596 shmctl(shminfo->shmid, IPC_RMID, 0);
597
598 if (isXShmAttachFailed() == JNI_TRUE) {
599 J2dRlsTraceLn1(J2D_TRACE_ERROR,
600 "X11SD_SetupSharedSegment XShmAttach has failed: %s",
601 strerror(errno));
602 shmdt(shminfo->shmaddr);
603 free((void *)shminfo);
604 XDestroyImage(img);
605 return NULL;
606 }
607
608 img->data = shminfo->shmaddr;
609 img->obdata = (char *)shminfo;
610
611 return img;
612 }
613
614 XImage* X11SD_GetSharedImage(X11SDOps *xsdo, jint width, jint height,
615 jint maxWidth, jint maxHeight, jboolean readBits)
616 {
617 XImage * retImage = NULL;
618 if (cachedXImage != NULL &&
619 X11SD_CachedXImageFits(width, height, maxWidth, maxHeight,
620 xsdo->depth, readBits)) {
621 /* sync so previous data gets flushed */
622 XSync(awt_display, False);
623 retImage = cachedXImage;
624 cachedXImage = (XImage *)NULL;
625 } else if (width * height * xsdo->depth > 0x10000) {
626 retImage = X11SD_CreateSharedImage(xsdo, width, height);
627 }
628 return retImage;
629 }
630
631 Drawable X11SD_CreateSharedPixmap(X11SDOps *xsdo)
632 {
633 XShmSegmentInfo *shminfo;
634 XImage *img = NULL;
635 Drawable pixmap;
636 int scan;
637 int width = xsdo->pmWidth;
638 int height = xsdo->pmHeight;
639
640 if (xsdo->shmPMData.pmSize < 0x10000) {
641 /* only use shared mem pixmaps for relatively big images */
642 return 0;
643 }
644
645 /* need to create shared(!) image to get bytes_per_line */
646 img = X11SD_CreateSharedImage(xsdo, width, height);
647 if (img == NULL) {
648 return 0;
649 }
650 scan = img->bytes_per_line;
651 shminfo = (XShmSegmentInfo*)img->obdata;
652 XFree(img);
653
654 pixmap =
655 XShmCreatePixmap(awt_display,
656 RootWindow(awt_display,
657 xsdo->configData->awt_visInfo.screen),
658 shminfo->shmaddr, shminfo,
659 width, height, xsdo->depth);
660 if (pixmap == 0) {
661 X11SD_DropSharedSegment(shminfo);
662 return 0;
663 }
664
665 xsdo->shmPMData.shmSegInfo = shminfo;
666 xsdo->shmPMData.bytesPerLine = scan;
667 return pixmap;
668 }
669
670 void X11SD_PuntPixmap(X11SDOps *xsdo, jint width, jint height)
671 {
672
673 if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
674 return;
675 }
676
677 /* we wouldn't be here if it's a shared pixmap, so no check
678 * for !usingShmPixmap.
679 */
680
681 xsdo->shmPMData.numBltsSinceRead = 0;
682
683 xsdo->shmPMData.pixelsReadSinceBlt += width * height;
684 if (xsdo->shmPMData.pixelsReadSinceBlt >
685 xsdo->shmPMData.pixelsReadThreshold) {
686 if (!xsdo->shmPMData.shmPixmap) {
687 xsdo->shmPMData.shmPixmap =
688 X11SD_CreateSharedPixmap(xsdo);
689 }
690 if (xsdo->shmPMData.shmPixmap) {
691 GC xgc = XCreateGC(awt_display, xsdo->shmPMData.shmPixmap, 0L, NULL);
692 if (xgc != NULL) {
693 xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
694 xsdo->drawable = xsdo->shmPMData.shmPixmap;
695 XCopyArea(awt_display,
696 xsdo->shmPMData.pixmap, xsdo->drawable, xgc,
697 0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
698 XSync(awt_display, False);
699 xsdo->shmPMData.xRequestSent = JNI_FALSE;
700 XFreeGC(awt_display, xgc);
701 }
702 }
703 }
704 }
705
706 void X11SD_UnPuntPixmap(X11SDOps *xsdo)
707 {
708 if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
709 return;
710 }
711 xsdo->shmPMData.pixelsReadSinceBlt = 0;
712 if (xsdo->shmPMData.numBltsSinceRead >=
713 xsdo->shmPMData.numBltsThreshold)
714 {
715 if (xsdo->shmPMData.usingShmPixmap) {
716 if (!xsdo->shmPMData.pixmap) {
717 xsdo->shmPMData.pixmap =
718 XCreatePixmap(awt_display,
719 RootWindow(awt_display,
720 xsdo->configData->awt_visInfo.screen),
721 xsdo->pmWidth, xsdo->pmHeight, xsdo->depth);
722 }
723 if (xsdo->shmPMData.pixmap) {
724 GC xgc = XCreateGC(awt_display, xsdo->shmPMData.pixmap, 0L, NULL);
725 if (xgc != NULL) {
726 xsdo->drawable = xsdo->shmPMData.pixmap;
727 XCopyArea(awt_display,
728 xsdo->shmPMData.shmPixmap, xsdo->drawable, xgc,
729 0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
730 XSync(awt_display, False);
731 XFreeGC(awt_display, xgc);
732 xsdo->shmPMData.xRequestSent = JNI_FALSE;
733 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
734 xsdo->shmPMData.numBltsThreshold *= 2;
735 }
736 }
737 }
738 } else {
739 xsdo->shmPMData.numBltsSinceRead++;
740 }
741 }
742
743 /**
744 * Determines if the cached image can be used for current operation.
745 * If the image is to be used to be read into by XShmGetImage,
746 * it must be close enough to avoid excessive reading from the screen;
747 * otherwise it should just be at least the size requested.
748 */
749 jboolean X11SD_CachedXImageFits(jint width, jint height, jint maxWidth,
750 jint maxHeight, jint depth, jboolean readBits)
751 {
752 /* we assume here that the cached image exists */
753 jint imgWidth = cachedXImage->width;
754 jint imgHeight = cachedXImage->height;
755
756 if (imgWidth < width || imgHeight < height || depth != cachedXImage->depth) {
757 /* doesn't fit if any of the cached image dimensions is smaller
758 or the depths are different */
759 return JNI_FALSE;
760 }
761
762 if (!readBits) {
763 /* Not reading from this image, so any image at least of the
764 size requested will do */
765 return JNI_TRUE;
766 }
767
768 if ((imgWidth < width + 64) && (imgHeight < height + 64)
769 && imgWidth <= maxWidth && imgHeight <= maxHeight)
770 {
771 /* Cached image's width/height shouldn't be more than 64 pixels
772 * larger than requested, because the region in XShmGetImage
773 * can't be specified and we don't want to read too much.
774 * Furthermore it has to be smaller than maxWidth/Height
775 * so drawables are not read out of bounds.
776 */
777 return JNI_TRUE;
778 }
779
780 return JNI_FALSE;
781 }
782 #endif /* MITSHM */
783
784 jint X11SD_InitWindow(JNIEnv *env, X11SDOps *xsdo)
785 {
786 if (xsdo->isPixmap == JNI_TRUE) {
787 return SD_FAILURE;
788 }
789 xsdo->cData = xsdo->configData->color_data;
790
791 return SD_SUCCESS;
792 }
793
794 static jint X11SD_Lock(JNIEnv *env,
795 SurfaceDataOps *ops,
796 SurfaceDataRasInfo *pRasInfo,
797 jint lockflags)
798 {
799 X11SDOps *xsdo = (X11SDOps *) ops;
800 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
801 int ret = SD_SUCCESS;
802
803 AWT_LOCK();
804
805 if (xsdo->invalid) {
806 AWT_UNLOCK();
807 SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
808 return SD_FAILURE;
809 }
810 xsdo->cData = xsdo->configData->color_data;
811 if (xsdo->drawable == 0 && X11SD_InitWindow(env, xsdo) == SD_FAILURE) {
812 AWT_UNLOCK();
813 return SD_FAILURE;
814 }
815 if ((lockflags & SD_LOCK_LUT) != 0 &&
816 (xsdo->cData == NULL ||
817 xsdo->cData->awt_icmLUT == NULL))
818 {
819 AWT_UNLOCK();
820 if (!(*env)->ExceptionCheck(env))
821 {
822 JNU_ThrowNullPointerException(env, "colormap lookup table");
823 }
824 return SD_FAILURE;
825 }
826 if ((lockflags & SD_LOCK_INVCOLOR) != 0 &&
827 (xsdo->cData == NULL ||
828 xsdo->cData->img_clr_tbl == NULL ||
829 xsdo->cData->img_oda_red == NULL ||
830 xsdo->cData->img_oda_green == NULL ||
831 xsdo->cData->img_oda_blue == NULL))
832 {
833 AWT_UNLOCK();
834 if (!(*env)->ExceptionCheck(env))
835 {
836 JNU_ThrowNullPointerException(env, "inverse colormap lookup table");
837 }
838 return SD_FAILURE;
839 }
840 if ((lockflags & SD_LOCK_INVGRAY) != 0 &&
841 (xsdo->cData == NULL ||
842 xsdo->cData->pGrayInverseLutData == NULL))
843 {
844 AWT_UNLOCK();
845 if (!(*env)->ExceptionCheck(env))
846 {
847 JNU_ThrowNullPointerException(env, "inverse gray lookup table");
848 }
849 return SD_FAILURE;
850 }
851 if (xsdo->dgaAvailable && (lockflags & (SD_LOCK_RD_WR))) {
852 int dgaret;
853
854 dgaret = (*pJDgaInfo->pGetLock)(env, awt_display, &xsdo->dgaDev,
855 xsdo->drawable, &xsdo->surfInfo,
856 pRasInfo->bounds.x1,
857 pRasInfo->bounds.y1,
858 pRasInfo->bounds.x2,
859 pRasInfo->bounds.y2);
860 if (dgaret == JDGA_SUCCESS) {
861 int wx = xsdo->surfInfo.window.lox;
862 int wy = xsdo->surfInfo.window.loy;
863 pRasInfo->bounds.x1 = xsdo->surfInfo.visible.lox - wx;
864 pRasInfo->bounds.y1 = xsdo->surfInfo.visible.loy - wy;
865 pRasInfo->bounds.x2 = xsdo->surfInfo.visible.hix - wx;
866 pRasInfo->bounds.y2 = xsdo->surfInfo.visible.hiy - wy;
867 xpriv->lockType = X11SD_LOCK_BY_DGA;
868 xpriv->lockFlags = lockflags;
869 return SD_SUCCESS;
870 } else if (dgaret == JDGA_UNAVAILABLE) {
871 xsdo->dgaAvailable = JNI_FALSE;
872 }
873 }
874 if (lockflags & SD_LOCK_RD_WR) {
875 if (lockflags & SD_LOCK_FASTEST) {
876 ret = SD_SLOWLOCK;
877 }
878 xpriv->lockType = X11SD_LOCK_BY_XIMAGE;
879 if (xsdo->isPixmap) {
880 #ifdef MITSHM
881 if (xsdo->shmPMData.usingShmPixmap) {
882 xpriv->lockType = X11SD_LOCK_BY_SHMEM;
883 }
884 #endif /* MITSHM */
885 if (pRasInfo->bounds.x1 < 0) {
886 pRasInfo->bounds.x1 = 0;
887 }
888 if (pRasInfo->bounds.y1 < 0) {
889 pRasInfo->bounds.y1 = 0;
890 }
891 if (pRasInfo->bounds.x2 > xsdo->pmWidth) {
892 pRasInfo->bounds.x2 = xsdo->pmWidth;
893 }
894 if (pRasInfo->bounds.y2 > xsdo->pmHeight) {
895 pRasInfo->bounds.y2 = xsdo->pmHeight;
896 }
897 }
898 } else {
899 /* They didn't lock for anything - we won't give them anything */
900 xpriv->lockType = X11SD_LOCK_BY_NULL;
901 }
902 xpriv->lockFlags = lockflags;
903 xpriv->img = NULL;
904
905 return ret;
906 /* AWT_UNLOCK() called in Unlock */
907 }
908
909 static void X11SD_GetRasInfo(JNIEnv *env,
910 SurfaceDataOps *ops,
911 SurfaceDataRasInfo *pRasInfo)
912 {
913 X11SDOps *xsdo = (X11SDOps *) ops;
914 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
915 jint lockFlags = xpriv->lockFlags;
916 jint depth = xsdo->depth;
917 int mult = xsdo->configData->pixelStride;
918
919 if (xsdo->dgaAvailable &&
920 xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
921 (lockFlags & SD_LOCK_FASTEST))
922 {
923 /* Try one more time to use DGA (now with smaller bounds)... */
924 int dgaret;
925
926 dgaret = (*pJDgaInfo->pGetLock)(env, awt_display, &xsdo->dgaDev,
927 xsdo->drawable, &xsdo->surfInfo,
928 pRasInfo->bounds.x1,
929 pRasInfo->bounds.y1,
930 pRasInfo->bounds.x2,
931 pRasInfo->bounds.y2);
932 if (dgaret == JDGA_SUCCESS) {
933 int wx = xsdo->surfInfo.window.lox;
934 int wy = xsdo->surfInfo.window.loy;
935 pRasInfo->bounds.x1 = xsdo->surfInfo.visible.lox - wx;
936 pRasInfo->bounds.y1 = xsdo->surfInfo.visible.loy - wy;
937 pRasInfo->bounds.x2 = xsdo->surfInfo.visible.hix - wx;
938 pRasInfo->bounds.y2 = xsdo->surfInfo.visible.hiy - wy;
939 xpriv->lockType = X11SD_LOCK_BY_DGA;
940 } else if (dgaret == JDGA_UNAVAILABLE) {
941 xsdo->dgaAvailable = JNI_FALSE;
942 }
943 }
944
945 if (xpriv->lockType == X11SD_LOCK_BY_DGA) {
946 int scan = xsdo->surfInfo.surfaceScan;
947 int wx = xsdo->surfInfo.window.lox;
948 int wy = xsdo->surfInfo.window.loy;
949 pRasInfo->rasBase =
950 (void *)(((uintptr_t) xsdo->surfInfo.basePtr) + (scan*wy + wx) * mult);
951 pRasInfo->pixelStride = mult;
952 pRasInfo->pixelBitOffset = 0;
953 pRasInfo->scanStride = scan * mult;
954 #ifdef MITSHM
955 } else if (xpriv->lockType == X11SD_LOCK_BY_SHMEM) {
956 if (xsdo->shmPMData.xRequestSent == JNI_TRUE) {
957 /* need to sync before using shared mem pixmap
958 if any x calls were issued for this pixmap */
959 XSync(awt_display, False);
960 xsdo->shmPMData.xRequestSent = JNI_FALSE;
961 }
962 xpriv->x = pRasInfo->bounds.x1;
963 xpriv->y = pRasInfo->bounds.y1;
964 pRasInfo->rasBase = xsdo->shmPMData.shmSegInfo->shmaddr;
965 pRasInfo->pixelStride = mult;
966 pRasInfo->pixelBitOffset = 0;
967 pRasInfo->scanStride = xsdo->shmPMData.bytesPerLine;
968 #endif /* MITSHM */
969 } else if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE) {
970 int x, y, w, h;
971 x = pRasInfo->bounds.x1;
972 y = pRasInfo->bounds.y1;
973 w = pRasInfo->bounds.x2 - x;
974 h = pRasInfo->bounds.y2 - y;
975
976 xpriv->img = X11SD_GetImage(env, xsdo, &pRasInfo->bounds, lockFlags);
977 if (xpriv->img) {
978 int scan = xpriv->img->bytes_per_line;
979 xpriv->x = x;
980 xpriv->y = y;
981 pRasInfo->rasBase = xpriv->img->data - x * mult - y * scan;
982 pRasInfo->pixelStride = mult;
983 pRasInfo->pixelBitOffset = 0;
984 pRasInfo->scanStride = scan;
985 } else {
986 pRasInfo->rasBase = NULL;
987 pRasInfo->pixelStride = 0;
988 pRasInfo->pixelBitOffset = 0;
989 pRasInfo->scanStride = 0;
990 }
991 } else {
992 /* They didn't lock for anything - we won't give them anything */
993 pRasInfo->rasBase = NULL;
994 pRasInfo->pixelStride = 0;
995 pRasInfo->pixelBitOffset = 0;
996 pRasInfo->scanStride = 0;
997 }
998 if (lockFlags & SD_LOCK_LUT) {
999 pRasInfo->lutBase = (jint *) xsdo->cData->awt_icmLUT;
1000 pRasInfo->lutSize = xsdo->cData->awt_numICMcolors;
1001 } else {
1002 pRasInfo->lutBase = NULL;
1003 pRasInfo->lutSize = 0;
1004 }
1005 if (lockFlags & SD_LOCK_INVCOLOR) {
1006 pRasInfo->invColorTable = xsdo->cData->img_clr_tbl;
1007 pRasInfo->redErrTable = xsdo->cData->img_oda_red;
1008 pRasInfo->grnErrTable = xsdo->cData->img_oda_green;
1009 pRasInfo->bluErrTable = xsdo->cData->img_oda_blue;
1010 } else {
1011 pRasInfo->invColorTable = NULL;
1012 pRasInfo->redErrTable = NULL;
1013 pRasInfo->grnErrTable = NULL;
1014 pRasInfo->bluErrTable = NULL;
1015 }
1016 if (lockFlags & SD_LOCK_INVGRAY) {
1017 pRasInfo->invGrayTable = xsdo->cData->pGrayInverseLutData;
1018 } else {
1019 pRasInfo->invGrayTable = NULL;
1020 }
1021 }
1022
1023 static void X11SD_Unlock(JNIEnv *env,
1024 SurfaceDataOps *ops,
1025 SurfaceDataRasInfo *pRasInfo)
1026 {
1027 X11SDOps *xsdo = (X11SDOps *) ops;
1028 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
1029
1030 if (xpriv->lockType == X11SD_LOCK_BY_DGA) {
1031 (*pJDgaInfo->pReleaseLock)(env, xsdo->dgaDev, xsdo->drawable);
1032 } else if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
1033 xpriv->img != NULL)
1034 {
1035 if (xpriv->lockFlags & SD_LOCK_WRITE) {
1036 int x = xpriv->x;
1037 int y = xpriv->y;
1038 int w = pRasInfo->bounds.x2 - x;
1039 int h = pRasInfo->bounds.y2 - y;
1040 Drawable drawable = xsdo->drawable;
1041 GC xgc = xsdo->cachedGC;
1042 if (xgc == NULL) {
1043 xsdo->cachedGC = xgc =
1044 XCreateGC(awt_display, drawable, 0L, NULL);
1045 }
1046
1047 if (xpriv->img->byte_order != nativeByteOrder) {
1048 /* switching bytes back in 24 and 32 bpp cases. */
1049 /* For 16 bit XLib will switch for us. */
1050 if (xsdo->depth > 16) {
1051 X11SD_SwapBytes(xsdo, xpriv->img, xsdo->depth,
1052 xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
1053 }
1054 }
1055
1056 #ifdef MITSHM
1057 if (xpriv->img->obdata != NULL) {
1058 XShmPutImage(awt_display, drawable, xgc,
1059 xpriv->img, 0, 0, x, y, w, h, False);
1060 XFlush(awt_display);
1061 } else {
1062 XPutImage(awt_display, drawable, xgc,
1063 xpriv->img, 0, 0, x, y, w, h);
1064 }
1065 if (xsdo->shmPMData.usingShmPixmap) {
1066 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1067 }
1068 #else
1069 XPutImage(awt_display, drawable, xgc,
1070 xpriv->img, 0, 0, x, y, w, h);
1071 #endif /* MITSHM */
1072
1073 (*pJDgaInfo->pXRequestSent)(env, xsdo->dgaDev, drawable);
1074 }
1075 X11SD_DisposeOrCacheXImage(xpriv->img);
1076 xpriv->img = (XImage *)NULL;
1077 }
1078 /* the background pixel is not valid anymore */
1079 if (xpriv->lockFlags & SD_LOCK_WRITE) {
1080 xsdo->isBgInitialized = JNI_FALSE;
1081 }
1082 xpriv->lockType = X11SD_LOCK_UNLOCKED;
1083 AWT_UNLOCK();
1084 }
1085
1086 static int
1087 X11SD_ClipToRoot(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
1088 X11SDOps *xsdo)
1089 {
1090 Position x1=0, y1=0, x2=0, y2=0;
1091 int tmpx, tmpy;
1092 Window tmpchild;
1093
1094 Window window = (Window)(xsdo->drawable); /* is always a Window */
1095 XWindowAttributes winAttr;
1096
1097 Status status = XGetWindowAttributes(awt_display, window, &winAttr);
1098 if (status == 0) {
1099 /* Failure, X window no longer valid. */
1100 return FALSE;
1101 }
1102 if (!XTranslateCoordinates(awt_display, window,
1103 RootWindowOfScreen(winAttr.screen),
1104 0, 0, &tmpx, &tmpy, &tmpchild)) {
1105 return FALSE;
1106 }
1107
1108 x1 = -(x1 + tmpx);
1109 y1 = -(y1 + tmpy);
1110
1111 x2 = x1 + DisplayWidth(awt_display, xsdo->configData->awt_visInfo.screen);
1112 y2 = y1 + DisplayHeight(awt_display, xsdo->configData->awt_visInfo.screen);
1113
1114 x1 = XSD_MAX(bounds->x1, x1);
1115 y1 = XSD_MAX(bounds->y1, y1);
1116 x2 = XSD_MIN(bounds->x2, x2);
1117 y2 = XSD_MIN(bounds->y2, y2);
1118 if ((x1 >= x2) || (y1 >= y2)) {
1119 return FALSE;
1120 }
1121 b->x1 = x1;
1122 b->y1 = y1;
1123 b->x2 = x2;
1124 b->y2 = y2;
1125
1126 return TRUE;
1127 }
1128
1129 /*
1130 * x1, y1, x2, y2 - our rectangle in the coord system of
1131 * the widget
1132 * px1, xy1, px2, py2 - current parent rect coords in the
1133 * same system
1134 */
1135 static int
1136 X11SD_FindClip(SurfaceDataBounds *b, SurfaceDataBounds *bounds, X11SDOps *xsdo)
1137 {
1138 return TRUE;
1139 }
1140
1141 static void
1142 X11SD_SwapBytes(X11SDOps *xsdo, XImage * img, int depth, int bpp) {
1143 int lengthInBytes = img->height * img->bytes_per_line;
1144 int i;
1145
1146 switch (depth) {
1147 case 12:
1148 case 15:
1149 case 16:
1150 {
1151 /* AB -> BA */
1152 unsigned short *d = (unsigned short *)img->data;
1153 unsigned short t;
1154 for (i = 0; i < lengthInBytes/2; i++) {
1155 t = *d;
1156 *d++ = (t >> 8) | (t << 8);
1157 }
1158 img->byte_order = nativeByteOrder;
1159 img->bitmap_bit_order = nativeByteOrder;
1160 break;
1161 }
1162 case 24:
1163 {
1164 /* ABC -> CBA */
1165 if (bpp == 24) {
1166 // 4517321: Only swap if we have a "real" ThreeByteBgr
1167 // visual (denoted by a red_mask of 0xff). Due to ambiguity
1168 // in the X11 spec, it appears that the swap is not required
1169 // on Linux configurations that use 24 bits per pixel (denoted
1170 // by a red_mask of 0xff0000).
1171 if (xsdo->configData->awt_visInfo.red_mask == 0xff) {
1172 int scan = img->bytes_per_line;
1173 unsigned char *d = (unsigned char *) img->data;
1174 unsigned char *d1;
1175 unsigned int t;
1176 int j;
1177
1178 for (i = 0; i < img->height; i++, d += scan) {
1179 d1 = d;
1180 for (j = 0; j < img->width; j++, d1 += 3) {
1181 /* not obvious opt from XLib src */
1182 t = d1[0]; d1[0] = d1[2]; d1[2] = t;
1183 }
1184 }
1185 }
1186 break;
1187 }
1188 }
1189 /* FALL THROUGH for 32-bit case */
1190 case 32:
1191 {
1192 /* ABCD -> DCBA */
1193 unsigned int *d = (unsigned int *) img->data;
1194 unsigned int t;
1195 for (i = 0; i < lengthInBytes/4; i++) {
1196 t = *d;
1197 *d++ = ((t >> 24) |
1198 ((t >> 8) & 0xff00) |
1199 ((t & 0xff00) << 8) |
1200 (t << 24));
1201 }
1202 break;
1203 }
1204 }
1205 }
1206
1207 static XImage * X11SD_GetImage(JNIEnv *env, X11SDOps *xsdo,
1208 SurfaceDataBounds *bounds,
1209 jint lockFlags)
1210 {
1211 int x, y, w, h, maxWidth, maxHeight;
1212 int scan;
1213 XImage * img = NULL;
1214 Drawable drawable;
1215 int depth = xsdo->depth;
1216 int mult = xsdo->configData->pixelStride;
1217 int pad = (mult == 3) ? 32 : mult * 8; // pad must be 8, 16, or 32
1218 jboolean readBits = lockFlags & SD_LOCK_NEED_PIXELS;
1219
1220 x = bounds->x1;
1221 y = bounds->y1;
1222 w = bounds->x2 - x;
1223 h = bounds->y2 - y;
1224
1225 #ifdef MITSHM
1226 if (useMitShmExt == CAN_USE_MITSHM) {
1227 if (xsdo->isPixmap) {
1228 if (readBits) {
1229 X11SD_PuntPixmap(xsdo, w, h);
1230 }
1231 maxWidth = xsdo->pmWidth;
1232 maxHeight = xsdo->pmHeight;
1233 } else {
1234 XWindowAttributes winAttr;
1235 if (XGetWindowAttributes(awt_display,
1236 (Window) xsdo->drawable, &winAttr) != 0) {
1237 maxWidth = winAttr.width;
1238 maxHeight = winAttr.height;
1239 } else {
1240 /* XGWA failed which isn't a good thing. Defaulting to using
1241 * x,y means that after the subtraction of these we will use
1242 * w=0, h=0 which is a reasonable default on such a failure.
1243 */
1244 maxWidth = x;
1245 maxHeight = y;
1246 }
1247 }
1248 maxWidth -= x;
1249 maxHeight -= y;
1250
1251 img = X11SD_GetSharedImage(xsdo, w, h, maxWidth, maxHeight, readBits);
1252 }
1253 #endif /* MITSHM */
1254 drawable = xsdo->drawable;
1255
1256 if (readBits) {
1257 #ifdef MITSHM
1258 if (img != NULL) {
1259 if (!XShmGetImage(awt_display, drawable, img, x, y, -1)) {
1260 X11SD_DisposeOrCacheXImage(img);
1261 img = NULL;
1262 }
1263 }
1264 if (img == NULL) {
1265 img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
1266 if (img != NULL) {
1267 img->obdata = NULL;
1268 }
1269 }
1270 #else
1271 img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
1272 #endif /* MITSHM */
1273 if (img == NULL) {
1274 SurfaceDataBounds temp;
1275 img = XCreateImage(awt_display,
1276 xsdo->configData->awt_visInfo.visual,
1277 depth, ZPixmap, 0, NULL, w, h, pad, 0);
1278 if (img == NULL) {
1279 return NULL;
1280 }
1281
1282 scan = img->bytes_per_line;
1283 img->data = malloc(h * scan);
1284 if (img->data == NULL) {
1285 XFree(img);
1286 return NULL;
1287 }
1288
1289 if (xsdo->isPixmap == JNI_FALSE &&
1290 X11SD_ClipToRoot(&temp, bounds, xsdo)) {
1291
1292 XImage * temp_image;
1293 temp_image = XGetImage(awt_display, drawable,
1294 temp.x1, temp.y1,
1295 temp.x2 - temp.x1,
1296 temp.y2 - temp.y1,
1297 -1, ZPixmap);
1298 if (temp_image == NULL) {
1299 XGrabServer(awt_display);
1300 if (X11SD_FindClip(&temp, bounds, xsdo)) {
1301 temp_image =
1302 XGetImage(awt_display, drawable,
1303 temp.x1, temp.y1,
1304 temp.x2 - temp.x1,
1305 temp.y2 - temp.y1,
1306 -1, ZPixmap);
1307 }
1308 XUngrabServer(awt_display);
1309 /* Workaround for bug 5039226 */
1310 XSync(awt_display, False);
1311 }
1312 if (temp_image != NULL) {
1313 int temp_scan, bytes_to_copy;
1314 char * img_addr, * temp_addr;
1315 int i;
1316
1317 img_addr = img->data +
1318 (temp.y1 - y) * scan + (temp.x1 - x) * mult;
1319 temp_scan = temp_image->bytes_per_line;
1320 temp_addr = temp_image->data;
1321 bytes_to_copy = (temp.x2 - temp.x1) * mult;
1322 for (i = temp.y1; i < temp.y2; i++) {
1323 memcpy(img_addr, temp_addr, bytes_to_copy);
1324 img_addr += scan;
1325 temp_addr += temp_scan;
1326 }
1327 XDestroyImage(temp_image);
1328 }
1329 }
1330 img->obdata = NULL;
1331 }
1332 if (depth > 8 && img->byte_order != nativeByteOrder) {
1333 X11SD_SwapBytes(xsdo, img, depth,
1334 xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
1335 }
1336 } else {
1337 /*
1338 * REMIND: This might be better to move to the Lock function
1339 * to avoid lengthy I/O pauses inside what may be a critical
1340 * section. This will be more critical when SD_LOCK_READ is
1341 * implemented. Another solution is to cache the pixels
1342 * to avoid reading for every operation.
1343 */
1344 if (img == NULL) {
1345 img = XCreateImage(awt_display,
1346 xsdo->configData->awt_visInfo.visual,
1347 depth, ZPixmap, 0, NULL, w, h, pad, 0);
1348 if (img == NULL) {
1349 return NULL;
1350 }
1351
1352 img->data = malloc(h * img->bytes_per_line);
1353 if (img->data == NULL) {
1354 XFree(img);
1355 return NULL;
1356 }
1357
1358 img->obdata = NULL;
1359
1360 if (img->byte_order != nativeByteOrder &&
1361 (depth == 15 || depth == 16 || depth == 12)) {
1362 /* bytes will be swapped by XLib. */
1363 img->byte_order = nativeByteOrder;
1364 img->bitmap_bit_order = nativeByteOrder;
1365 }
1366 }
1367 }
1368 return img;
1369 }
1370
1371 void X11SD_DisposeOrCacheXImage(XImage * image) {
1372 /* REMIND: might want to check if the new image worth caching. */
1373 /* Cache only shared images. Passed image is assumed to be non-null. */
1374 if (image->obdata != NULL) {
1375 if (cachedXImage != NULL) {
1376 X11SD_DisposeXImage(cachedXImage);
1377 }
1378 cachedXImage = image;
1379 } else {
1380 X11SD_DisposeXImage(image);
1381 }
1382 }
1383
1384 void X11SD_DisposeXImage(XImage * image) {
1385 if (image != NULL) {
1386 #ifdef MITSHM
1387 if (image->obdata != NULL) {
1388 X11SD_DropSharedSegment((XShmSegmentInfo*)image->obdata);
1389 image->obdata = NULL;
1390 }
1391 #endif /* MITSHM */
1392 XDestroyImage(image);
1393 }
1394 }
1395
1396 static JDgaStatus
1397 GetLockStub(JNIEnv *env, Display *display, void **dgaDev,
1398 Drawable d, JDgaSurfaceInfo *pSurface,
1399 jint lox, jint loy, jint hix, jint hiy)
1400 {
1401 return JDGA_UNAVAILABLE;
1402 }
1403
1404 static JDgaStatus
1405 ReleaseLockStub(JNIEnv *env, void *dgaDev, Drawable d)
1406 {
1407 return JDGA_FAILED;
1408 }
1409
1410 static void
1411 XRequestSentStub(JNIEnv *env, void *dgaDev, Drawable d)
1412 {
1413 }
1414
1415 static void
1416 LibDisposeStub(JNIEnv *env)
1417 {
1418 }
1419
1420 static JDgaLibInfo DgaLibInfoStub = {
1421 NULL,
1422 GetLockStub,
1423 ReleaseLockStub,
1424 XRequestSentStub,
1425 LibDisposeStub,
1426 };
1427
1428 void X11SD_LibDispose(JNIEnv *env) {
1429 AWT_LOCK();
1430 if (pJDgaInfo != NULL) {
1431 pJDgaInfo->pLibDispose(env);
1432 pJDgaInfo = &DgaLibInfoStub;
1433 }
1434 AWT_UNLOCK();
1435 }
1436
1437 void
1438 X11SD_DirectRenderNotify(JNIEnv *env, X11SDOps *xsdo)
1439 {
1440 #ifdef MITSHM
1441 if (xsdo->shmPMData.usingShmPixmap) {
1442 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1443 }
1444 #endif /* MITSHM */
1445 (*pJDgaInfo->pXRequestSent)(env, xsdo->dgaDev, xsdo->drawable);
1446 awt_output_flush();
1447 }
1448
1449 /*
1450 * Sets transparent pixels in the pixmap to
1451 * the specified solid background color and returns it.
1452 * Doesn't update source pixmap unless the color of the
1453 * transparent pixels is different from the specified color.
1454 *
1455 * Note: The AWT lock must be held by the current thread
1456 * while calling into this method.
1457 */
1458 static Drawable
1459 X11SD_GetPixmapWithBg(JNIEnv *env, X11SDOps *xsdo, jint pixel)
1460 {
1461 /* assert AWT_CHECK_HAVE_LOCK(); */
1462
1463 if (xsdo->invalid) {
1464 AWT_UNLOCK();
1465 SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
1466 return 0;
1467 }
1468
1469 /* the image doesn't have transparency, just return it */
1470 if (xsdo->bitmask == 0) {
1471 /* don't need to unlock here, the caller will unlock through
1472 the release call */
1473 return xsdo->drawable;
1474 }
1475
1476 /* Check if current color of the transparent pixels is different
1477 from the specified one */
1478 if (xsdo->isBgInitialized == JNI_FALSE || xsdo->bgPixel != pixel) {
1479 GC srcGC;
1480 GC bmGC;
1481
1482 if (xsdo->drawable == 0) {
1483 AWT_UNLOCK();
1484 return 0;
1485 }
1486
1487 bmGC = XCreateGC(awt_display, xsdo->bitmask, 0, NULL);
1488 if (bmGC == NULL) {
1489 AWT_UNLOCK();
1490 return 0;
1491 }
1492
1493 /* invert the bitmask */
1494 XSetFunction(awt_display, bmGC, GXxor);
1495 XSetForeground(awt_display, bmGC, 1);
1496 XFillRectangle(awt_display, xsdo->bitmask, bmGC,
1497 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1498
1499 srcGC = XCreateGC(awt_display, xsdo->drawable, 0L, NULL);
1500 if (srcGC == NULL) {
1501 XFreeGC(awt_display, bmGC);
1502 AWT_UNLOCK();
1503 return 0;
1504 }
1505
1506 /* set transparent pixels in the source pm to the bg color */
1507 XSetClipMask(awt_display, srcGC, xsdo->bitmask);
1508 XSetForeground(awt_display, srcGC, pixel);
1509 XFillRectangle(awt_display, xsdo->drawable, srcGC,
1510 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1511
1512 /* invert the mask back */
1513 XFillRectangle(awt_display, xsdo->bitmask, bmGC,
1514 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1515
1516 XFreeGC(awt_display, bmGC);
1517 XFreeGC(awt_display, srcGC);
1518 xsdo->bgPixel = pixel;
1519 xsdo->isBgInitialized = JNI_TRUE;
1520 }
1521
1522 return xsdo->drawable;
1523 }
1524
1525 static void
1526 X11SD_ReleasePixmapWithBg(JNIEnv *env, X11SDOps *xsdo)
1527 {
1528 #ifdef MITSHM
1529 if (xsdo->shmPMData.usingShmPixmap) {
1530 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1531 }
1532 #endif /* MITSHM */
1533 }
1534
1535 #endif /* !HEADLESS */
1536
1537 /*
1538 * Class: sun_java2d_x11_X11SurfaceData
1539 * Method: XCreateGC
1540 * Signature: (I)J
1541 */
1542 JNIEXPORT jlong JNICALL
1543 Java_sun_java2d_x11_XSurfaceData_XCreateGC
1544 (JNIEnv *env, jclass xsd, jlong pXSData)
1545 {
1546 jlong ret;
1547
1548 #ifndef HEADLESS
1549 X11SDOps *xsdo;
1550
1551 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XCreateGC");
1552
1553 xsdo = (X11SDOps *) pXSData;
1554 if (xsdo == NULL) {
1555 return 0L;
1556 }
1557
1558 xsdo->javaGC = XCreateGC(awt_display, xsdo->drawable, 0, NULL);
1559 ret = (jlong) xsdo->javaGC;
1560 #else /* !HEADLESS */
1561 ret = 0L;
1562 #endif /* !HEADLESS */
1563
1564 return ret;
1565 }
1566
1567 /*
1568 * Class: sun_java2d_x11_X11SurfaceData
1569 * Method: XResetClip
1570 * Signature: (JIIIILsun/java2d/pipe/Region;)V
1571 */
1572 JNIEXPORT void JNICALL
1573 Java_sun_java2d_x11_XSurfaceData_XResetClip
1574 (JNIEnv *env, jclass xsd, jlong xgc)
1575 {
1576 #ifndef HEADLESS
1577 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XResetClip");
1578 XSetClipMask(awt_display, (GC) xgc, None);
1579 #endif /* !HEADLESS */
1580 }
1581
1582 /*
1583 * Class: sun_java2d_x11_X11SurfaceData
1584 * Method: XSetClip
1585 * Signature: (JIIIILsun/java2d/pipe/Region;)V
1586 */
1587 JNIEXPORT void JNICALL
1588 Java_sun_java2d_x11_XSurfaceData_XSetClip
1589 (JNIEnv *env, jclass xsd, jlong xgc,
1590 jint x1, jint y1, jint x2, jint y2,
1591 jobject complexclip)
1592 {
1593 #ifndef HEADLESS
1594 int numrects;
1595 XRectangle rects[256];
1596 XRectangle *pRect = rects;
1597
1598 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetClip");
1599
1600 numrects = RegionToYXBandedRectangles(env,
1601 x1, y1, x2, y2, complexclip,
1602 &pRect, 256);
1603
1604 XSetClipRectangles(awt_display, (GC) xgc, 0, 0, pRect, numrects, YXBanded);
1605
1606 if (pRect != rects) {
1607 free(pRect);
1608 }
1609 #endif /* !HEADLESS */
1610 }
1611
1612 /*
1613 * Class: sun_java2d_x11_X11SurfaceData
1614 * Method: XSetCopyMode
1615 * Signature: (J)V
1616 */
1617 JNIEXPORT void JNICALL
1618 Java_sun_java2d_x11_X11SurfaceData_XSetCopyMode
1619 (JNIEnv *env, jclass xsd, jlong xgc)
1620 {
1621 #ifndef HEADLESS
1622 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetCopyMode");
1623 XSetFunction(awt_display, (GC) xgc, GXcopy);
1624 #endif /* !HEADLESS */
1625 }
1626
1627 /*
1628 * Class: sun_java2d_x11_X11SurfaceData
1629 * Method: XSetXorMode
1630 * Signature: (J)V
1631 */
1632 JNIEXPORT void JNICALL
1633 Java_sun_java2d_x11_X11SurfaceData_XSetXorMode
1634 (JNIEnv *env, jclass xr, jlong xgc)
1635 {
1636 #ifndef HEADLESS
1637 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetXorMode");
1638 XSetFunction(awt_display, (GC) xgc, GXxor);
1639 #endif /* !HEADLESS */
1640 }
1641
1642 /*
1643 * Class: sun_java2d_x11_X11SurfaceData
1644 * Method: XSetForeground
1645 * Signature: (JI)V
1646 */
1647 JNIEXPORT void JNICALL
1648 Java_sun_java2d_x11_X11SurfaceData_XSetForeground
1649 (JNIEnv *env, jclass xsd, jlong xgc, jint pixel)
1650 {
1651 #ifndef HEADLESS
1652 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetForeground");
1653 XSetForeground(awt_display, (GC) xgc, pixel);
1654 #endif /* !HEADLESS */
1655 }
1656
1657 /*
1658 * Class: sun_java2d_x11_X11SurfaceData
1659 * Method: XSetGraphicsExposures
1660 * Signature: (JZ)V
1661 */
1662 JNIEXPORT void JNICALL
1663 Java_sun_java2d_x11_XSurfaceData_XSetGraphicsExposures
1664 (JNIEnv *env, jclass xsd, jlong xgc, jboolean needExposures)
1665 {
1666 #ifndef HEADLESS
1667 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetGraphicsExposures");
1668 XSetGraphicsExposures(awt_display, (GC) xgc, needExposures ? True : False);
1669 #endif /* !HEADLESS */
1670 }