1 /*
2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include "X11SurfaceData.h"
27 #include "GraphicsPrimitiveMgr.h"
28 #include "Region.h"
29 #include "Trace.h"
30
31 /* Needed to define intptr_t */
32 #include "gdefs.h"
33
34 #include "jni_util.h"
35 #include "jvm_md.h"
36 #include "awt_Component.h"
37 #include "awt_GraphicsEnv.h"
38
39 #include <dlfcn.h>
40
41 #ifndef HEADLESS
42 static JDgaLibInfo DgaLibInfoStub;
43 static JDgaLibInfo theJDgaInfo;
44 static JDgaLibInfo *pJDgaInfo = &DgaLibInfoStub;
45
46
47 /**
48 * This file contains support code for loops using the SurfaceData
49 * interface to talk to an X11 drawable from native code.
50 */
51
52 typedef struct _X11RIPrivate {
53 jint lockType;
54 jint lockFlags;
55 XImage *img;
56 int x, y;
57 } X11RIPrivate;
58
59 #define MAX(a,b) ((a) > (b) ? (a) : (b))
60 #define MIN(a,b) ((a) < (b) ? (a) : (b))
61
62 static LockFunc X11SD_Lock;
63 static GetRasInfoFunc X11SD_GetRasInfo;
64 static UnlockFunc X11SD_Unlock;
65 static DisposeFunc X11SD_Dispose;
66 static GetPixmapBgFunc X11SD_GetPixmapWithBg;
67 static ReleasePixmapBgFunc X11SD_ReleasePixmapWithBg;
68 extern int J2DXErrHandler(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
93 /* Cached shared image, one for all surface datas. */
94 static XImage * cachedXImage;
95
96 #endif /* !HEADLESS */
97
98 jboolean XShared_initIDs(JNIEnv *env, jboolean allowShmPixmaps)
99 {
100 #ifndef HEADLESS
101 union {
102 char c[4];
103 int i;
104 } endian;
105
106 endian.i = 0xff000000;
107 nativeByteOrder = (endian.c[0]) ? MSBFirst : LSBFirst;
108
109 dgaAvailable = JNI_FALSE;
110
111 cachedXImage = NULL;
112
113 if (sizeof(X11RIPrivate) > SD_RASINFO_PRIVATE_SIZE) {
114 JNU_ThrowInternalError(env, "Private RasInfo structure too large!");
115 return JNI_FALSE;
116 }
117
118 #ifdef MITSHM
119 if (getenv("NO_AWT_MITSHM") == NULL &&
120 getenv("NO_J2D_MITSHM") == NULL) {
121 char * force;
122 TryInitMITShm(env, &useMitShmExt, &useMitShmPixmaps);
123
124 if(allowShmPixmaps) {
125 useMitShmPixmaps = (useMitShmPixmaps == CAN_USE_MITSHM);
126 force = getenv("J2D_PIXMAPS");
127 if (force != NULL) {
128 if (useMitShmPixmaps && (strcmp(force, "shared") == 0)) {
129 forceSharedPixmaps = JNI_TRUE;
130 } else if (strcmp(force, "server") == 0) {
131 useMitShmPixmaps = JNI_FALSE;
132 }
133 }
134 }else {
135 useMitShmPixmaps = JNI_FALSE;
136 }
137 }
138 #endif /* MITSHM */
139
140 #endif /* !HEADLESS */
141
142 return JNI_TRUE;
143 }
144
145
146 /*
147 * Class: sun_java2d_x11_X11SurfaceData
148 * Method: initIDs
149 * Signature: (Ljava/lang/Class;Z)V
150 */
151 JNIEXPORT void JNICALL
152 Java_sun_java2d_x11_X11SurfaceData_initIDs(JNIEnv *env, jclass xsd,
153 jclass XORComp, jboolean tryDGA)
154 {
155 #ifndef HEADLESS
156 if(XShared_initIDs(env, JNI_TRUE))
157 {
158 void *lib = 0;
159
160 xorCompClass = (*env)->NewGlobalRef(env, XORComp);
161
162 if (tryDGA && (getenv("NO_J2D_DGA") == NULL)) {
163 /* we use RTLD_NOW because of bug 4032715 */
164 lib = dlopen(JNI_LIB_NAME("sunwjdga"), RTLD_NOW);
165 }
166
167 if (lib != NULL) {
168 JDgaStatus ret = JDGA_FAILED;
169 void *sym = dlsym(lib, "JDgaLibInit");
170 if (sym != NULL) {
171 theJDgaInfo.display = awt_display;
172 AWT_LOCK();
173 ret = (*(JDgaLibInitFunc *)sym)(env, &theJDgaInfo);
174 AWT_UNLOCK();
175 }
176 if (ret == JDGA_SUCCESS) {
177 pJDgaInfo = &theJDgaInfo;
178 dgaAvailable = JNI_TRUE;
179 useDGAWithPixmaps = (getenv("USE_DGA_PIXMAPS") != NULL);
180 } else {
181 dlclose(lib);
182 lib = NULL;
183 }
184 }
185 }
186 #endif /* !HEADLESS */
187 }
188
189 /*
190 * Class: sun_java2d_x11_X11SurfaceData
191 * Method: isDrawableValid
192 * Signature: ()Z
193 */
194 JNIEXPORT jboolean JNICALL
195 Java_sun_java2d_x11_XSurfaceData_isDrawableValid(JNIEnv *env, jobject this)
196 {
197 jboolean ret = JNI_FALSE;
198
199 #ifndef HEADLESS
200 X11SDOps *xsdo = X11SurfaceData_GetOps(env, this);
201
202 AWT_LOCK();
203 if (xsdo->drawable != 0 || X11SD_InitWindow(env, xsdo) == SD_SUCCESS) {
204 ret = JNI_TRUE;
205 }
206 AWT_UNLOCK();
207 #endif /* !HEADLESS */
208
209 return ret;
210 }
211
212 /*
213 * Class: sun_java2d_x11_X11SurfaceData
214 * Method: isShmPMAvailable
215 * Signature: ()Z
216 */
217 JNIEXPORT jboolean JNICALL
218 Java_sun_java2d_x11_X11SurfaceData_isShmPMAvailable(JNIEnv *env, jobject this)
219 {
220 #if defined(HEADLESS) || !defined(MITSHM)
221 return JNI_FALSE;
222 #else
223 return useMitShmPixmaps;
224 #endif /* HEADLESS, MITSHM */
225 }
226
227 /*
228 * Class: sun_java2d_x11_X11SurfaceData
229 * Method: isDgaAvailable
230 * Signature: ()Z
231 */
232 JNIEXPORT jboolean JNICALL
233 Java_sun_java2d_x11_X11SurfaceData_isDgaAvailable(JNIEnv *env, jobject this)
234 {
235 #if defined(HEADLESS) || defined(__linux__)
236 return JNI_FALSE;
237 #else
238 return dgaAvailable;
239 #endif /* HEADLESS */
240 }
241
242 /*
243 * Class: sun_java2d_x11_X11SurfaceData
244 * Method: initOps
245 * Signature: (Ljava/lang/Object;I)V
246 */
247 JNIEXPORT void JNICALL
248 Java_sun_java2d_x11_XSurfaceData_initOps(JNIEnv *env, jobject xsd,
249 jobject peer,
250 jobject graphicsConfig, jint depth)
251 {
252 #ifndef HEADLESS
253 X11SDOps *xsdo = (X11SDOps*)SurfaceData_InitOps(env, xsd, sizeof(X11SDOps));
254 if (xsdo == NULL) {
255 JNU_ThrowOutOfMemoryError(env, "Initialization of SurfaceData failed.");
256 return;
257 }
258 xsdo->sdOps.Lock = X11SD_Lock;
259 xsdo->sdOps.GetRasInfo = X11SD_GetRasInfo;
260 xsdo->sdOps.Unlock = X11SD_Unlock;
261 xsdo->sdOps.Dispose = X11SD_Dispose;
262 xsdo->GetPixmapWithBg = X11SD_GetPixmapWithBg;
263 xsdo->ReleasePixmapWithBg = X11SD_ReleasePixmapWithBg;
264 xsdo->widget = NULL;
265 if (peer != NULL) {
266 xsdo->drawable = JNU_CallMethodByName(env, NULL, peer, "getWindow", "()J").j;
267 } else {
268 xsdo->drawable = 0;
269 }
270 xsdo->depth = depth;
271 xsdo->dgaAvailable = dgaAvailable;
272 xsdo->isPixmap = JNI_FALSE;
273 xsdo->bitmask = 0;
274 xsdo->bgPixel = 0;
275 xsdo->isBgInitialized = JNI_FALSE;
276 #ifdef MITSHM
277 xsdo->shmPMData.shmSegInfo = NULL;
278 xsdo->shmPMData.xRequestSent = JNI_FALSE;
279 xsdo->shmPMData.pmSize = 0;
280 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
281 xsdo->shmPMData.pixmap = 0;
282 xsdo->shmPMData.shmPixmap = 0;
283 xsdo->shmPMData.numBltsSinceRead = 0;
284 xsdo->shmPMData.pixelsReadSinceBlt = 0;
285 xsdo->shmPMData.numBltsThreshold = 2;
286 #endif /* MITSHM */
287
288 xsdo->configData = (AwtGraphicsConfigDataPtr)
289 JNU_GetLongFieldAsPtr(env,
290 graphicsConfig,
291 x11GraphicsConfigIDs.aData);
292 if (xsdo->configData == NULL) {
293 JNU_ThrowNullPointerException(env,
294 "Native GraphicsConfig data block missing");
295 return;
296 }
297 if (depth > 12) {
298 xsdo->pixelmask = (xsdo->configData->awt_visInfo.red_mask |
299 xsdo->configData->awt_visInfo.green_mask |
300 xsdo->configData->awt_visInfo.blue_mask);
301 } else if (depth == 12) {
302 xsdo->pixelmask = 0xfff;
303 } else {
304 xsdo->pixelmask = 0xff;
305 }
306
307 xsdo->xrPic = None;
308 #endif /* !HEADLESS */
309 }
310
311 /*
312 * Class: sun_java2d_x11_X11SurfaceData
313 * Method: flushNativeSurface
314 * Signature: ()V
315 */
316 JNIEXPORT void JNICALL
317 Java_sun_java2d_x11_XSurfaceData_flushNativeSurface(JNIEnv *env, jobject xsd)
318 {
319 #ifndef HEADLESS
320 SurfaceDataOps *ops = SurfaceData_GetOps(env, xsd);
321
322 if (ops != NULL) {
323 X11SD_Dispose(env, ops);
324 }
325 #endif /* !HEADLESS */
326 }
327
328
329 JNIEXPORT X11SDOps * JNICALL
330 X11SurfaceData_GetOps(JNIEnv *env, jobject sData)
331 {
332 #ifdef HEADLESS
333 return NULL;
334 #else
335 SurfaceDataOps *ops = SurfaceData_GetOps(env, sData);
336 if (ops != NULL && ops->Lock != X11SD_Lock) {
337 SurfaceData_ThrowInvalidPipeException(env, "not an X11 SurfaceData");
338 ops = NULL;
339 }
340 return (X11SDOps *) ops;
341 #endif /* !HEADLESS */
342 }
343
344 /*
345 * Method for disposing X11SD-specific data
346 */
347 static void
348 X11SD_Dispose(JNIEnv *env, SurfaceDataOps *ops)
349 {
350 #ifndef HEADLESS
351 /* ops is assumed non-null as it is checked in SurfaceData_DisposeOps */
352 X11SDOps * xsdo = (X11SDOps*)ops;
353
354 AWT_LOCK();
355
356 xsdo->invalid = JNI_TRUE;
357
358 if (xsdo->xrPic != None) {
359 XRenderFreePicture(awt_display, xsdo->xrPic);
360 xsdo->xrPic = None;
361 }
362
363 if (xsdo->isPixmap == JNI_TRUE && xsdo->drawable != 0) {
364 #ifdef MITSHM
365 if (xsdo->shmPMData.shmSegInfo != NULL) {
366 X11SD_DropSharedSegment(xsdo->shmPMData.shmSegInfo);
367 xsdo->shmPMData.shmSegInfo = NULL;
368 }
369 if (xsdo->shmPMData.pixmap) {
370 XFreePixmap(awt_display, xsdo->shmPMData.pixmap);
371 xsdo->shmPMData.pixmap = 0;
372 }
373 if (xsdo->shmPMData.shmPixmap) {
374 XFreePixmap(awt_display, xsdo->shmPMData.shmPixmap);
375 xsdo->shmPMData.shmPixmap = 0;
376 }
377 #else
378 XFreePixmap(awt_display, xsdo->drawable);
379 #endif /* MITSHM */
380 xsdo->drawable = 0;
381 }
382 if (xsdo->bitmask != 0) {
383 XFreePixmap(awt_display, xsdo->bitmask);
384 xsdo->bitmask = 0;
385 }
386 if (xsdo->javaGC != NULL) {
387 XFreeGC(awt_display, xsdo->javaGC);
388 xsdo->javaGC = NULL;
389 }
390 if (xsdo->cachedGC != NULL) {
391 XFreeGC(awt_display, xsdo->cachedGC);
392 xsdo->cachedGC = NULL;
393 }
394
395 if(xsdo->xrPic != None) {
396 XRenderFreePicture(awt_display, xsdo->xrPic);
397 }
398
399 AWT_UNLOCK();
400 #endif /* !HEADLESS */
401 }
402 /*
403 * Class: sun_java2d_x11_X11SurfaceData
404 * Method: setInvalid
405 * Signature: ()V
406 */
407 JNIEXPORT void JNICALL
408 Java_sun_java2d_x11_XSurfaceData_setInvalid(JNIEnv *env, jobject xsd)
409 {
410 #ifndef HEADLESS
411 X11SDOps *xsdo = (X11SDOps *) SurfaceData_GetOps(env, xsd);
412
413 if (xsdo != NULL) {
414 xsdo->invalid = JNI_TRUE;
415 }
416 #endif /* !HEADLESS */
417 }
418
419
420 jboolean XShared_initSurface(JNIEnv *env, X11SDOps *xsdo, jint depth, jint width, jint height, jlong drawable)
421 {
422 #ifndef HEADLESS
423
424 if (drawable != (jlong)0) {
425 /* Double-buffering */
426 xsdo->drawable = drawable;
427 xsdo->isPixmap = JNI_FALSE;
428 } else {
429 xsdo->isPixmap = JNI_TRUE;
430 /* REMIND: workaround for bug 4420220 on pgx32 boards:
431 don't use DGA with pixmaps unless USE_DGA_PIXMAPS is set.
432 */
433 xsdo->dgaAvailable = useDGAWithPixmaps;
434
435 xsdo->pmWidth = width;
436 xsdo->pmHeight = height;
437
438 #ifdef MITSHM
439 xsdo->shmPMData.pmSize = width * height * depth;
440 xsdo->shmPMData.pixelsReadThreshold = width * height / 8;
441 if (forceSharedPixmaps) {
442 AWT_LOCK();
443 xsdo->drawable = X11SD_CreateSharedPixmap(xsdo);
444 AWT_UNLOCK();
445 if (xsdo->drawable) {
446 xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
447 xsdo->shmPMData.shmPixmap = xsdo->drawable;
448 return JNI_TRUE;
449 }
450 }
451 #endif /* MITSHM */
452
453 AWT_LOCK();
454 xsdo->drawable =
455 XCreatePixmap(awt_display,
456 RootWindow(awt_display,
457 xsdo->configData->awt_visInfo.screen),
458 width, height, depth);
459 AWT_UNLOCK();
460 #ifdef MITSHM
461 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
462 xsdo->shmPMData.pixmap = xsdo->drawable;
463 #endif /* MITSHM */
464 }
465 if (xsdo->drawable == 0) {
466 JNU_ThrowOutOfMemoryError(env,
467 "Can't create offscreen surface");
468 return JNI_FALSE;
469 }
470
471 #endif /* !HEADLESS */
472 return JNI_TRUE;
473 }
474
475
476 /*
477 * Class: sun_java2d_x11_X11SurfaceData
478 * Method: initSurface
479 * Signature: ()V
480 */
481 JNIEXPORT void JNICALL
482 Java_sun_java2d_x11_X11SurfaceData_initSurface(JNIEnv *env, jclass xsd,
483 jint depth,
484 jint width, jint height,
485 jlong drawable)
486 {
487 #ifndef HEADLESS
488 X11SDOps *xsdo = X11SurfaceData_GetOps(env, xsd);
489 if (xsdo == NULL) {
490 return;
491 }
492
493 if (xsdo->configData->awt_cmap == (Colormap)NULL) {
494 awtJNI_CreateColorData(env, xsdo->configData, 1);
495 }
496 /* color_data will be initialized in awtJNI_CreateColorData for
497 8-bit visuals */
498 xsdo->cData = xsdo->configData->color_data;
499
500 XShared_initSurface(env, xsdo, depth, width, height, drawable);
501 xsdo->xrPic = NULL;
502 #endif /* !HEADLESS */
503 }
504
505 #ifndef HEADLESS
506
507 #ifdef MITSHM
508
509 void X11SD_DropSharedSegment(XShmSegmentInfo *shminfo)
510 {
511 if (shminfo != NULL) {
512 XShmDetach(awt_display, shminfo);
513 shmdt(shminfo->shmaddr);
514 /* REMIND: we don't need shmctl(shminfo->shmid, IPC_RMID, 0); here. */
515 /* Check X11SD_CreateSharedImage() for the explanation */
516 }
517 }
518
519 XImage* X11SD_CreateSharedImage(X11SDOps *xsdo,
520 jint width, jint height)
521 {
522 XImage *img = NULL;
523 XShmSegmentInfo *shminfo;
524
525 shminfo = malloc(sizeof(XShmSegmentInfo));
526 if (shminfo == NULL) {
527 return NULL;
528 }
529 memset(shminfo, 0, sizeof(XShmSegmentInfo));
530
531 img = XShmCreateImage(awt_display, xsdo->configData->awt_visInfo.visual,
532 xsdo->depth, ZPixmap, NULL, shminfo,
533 width, height);
534 if (img == NULL) {
535 free((void *)shminfo);
536 return NULL;
537 }
538 shminfo->shmid =
539 shmget(IPC_PRIVATE, height * img->bytes_per_line, IPC_CREAT|0777);
540 if (shminfo->shmid < 0) {
541 J2dRlsTraceLn1(J2D_TRACE_ERROR,
542 "X11SD_SetupSharedSegment shmget has failed: %s",
543 strerror(errno));
544 free((void *)shminfo);
545 XDestroyImage(img);
546 return NULL;
547 }
548
549 shminfo->shmaddr = (char *) shmat(shminfo->shmid, 0, 0);
550 if (shminfo->shmaddr == ((char *) -1)) {
551 shmctl(shminfo->shmid, IPC_RMID, 0);
552 J2dRlsTraceLn1(J2D_TRACE_ERROR,
553 "X11SD_SetupSharedSegment shmat has failed: %s",
554 strerror(errno));
555 free((void *)shminfo);
556 XDestroyImage(img);
557 return NULL;
558 }
559
560 shminfo->readOnly = False;
561
562 resetXShmAttachFailed();
563 EXEC_WITH_XERROR_HANDLER(J2DXErrHandler,
564 XShmAttach(awt_display, shminfo));
565
566 /*
567 * Once the XSync round trip has finished then we
568 * can get rid of the id so that this segment does not stick
569 * around after we go away, holding system resources.
570 */
571 shmctl(shminfo->shmid, IPC_RMID, 0);
572
573 if (isXShmAttachFailed() == JNI_TRUE) {
574 J2dRlsTraceLn1(J2D_TRACE_ERROR,
575 "X11SD_SetupSharedSegment XShmAttach has failed: %s",
576 strerror(errno));
577 shmdt(shminfo->shmaddr);
578 free((void *)shminfo);
579 XDestroyImage(img);
580 return NULL;
581 }
582
583 img->data = shminfo->shmaddr;
584 img->obdata = (char *)shminfo;
585
586 return img;
587 }
588
589 XImage* X11SD_GetSharedImage(X11SDOps *xsdo, jint width, jint height,
590 jint maxWidth, jint maxHeight, jboolean readBits)
591 {
592 XImage * retImage = NULL;
593 if (cachedXImage != NULL &&
594 X11SD_CachedXImageFits(width, height, maxWidth, maxHeight,
595 xsdo->depth, readBits)) {
596 /* sync so previous data gets flushed */
597 XSync(awt_display, False);
598 retImage = cachedXImage;
599 cachedXImage = (XImage *)NULL;
600 } else if (width * height * xsdo->depth > 0x10000) {
601 retImage = X11SD_CreateSharedImage(xsdo, width, height);
602 }
603 return retImage;
604 }
605
606 Drawable X11SD_CreateSharedPixmap(X11SDOps *xsdo)
607 {
608 XShmSegmentInfo *shminfo;
609 XImage *img = NULL;
610 Drawable pixmap;
611 int scan;
612 int width = xsdo->pmWidth;
613 int height = xsdo->pmHeight;
614
615 if (xsdo->shmPMData.pmSize < 0x10000) {
616 /* only use shared mem pixmaps for relatively big images */
617 return 0;
618 }
619
620 /* need to create shared(!) image to get bytes_per_line */
621 img = X11SD_CreateSharedImage(xsdo, width, height);
622 if (img == NULL) {
623 return 0;
624 }
625 scan = img->bytes_per_line;
626 shminfo = (XShmSegmentInfo*)img->obdata;
627 XFree(img);
628
629 pixmap =
630 XShmCreatePixmap(awt_display,
631 RootWindow(awt_display,
632 xsdo->configData->awt_visInfo.screen),
633 shminfo->shmaddr, shminfo,
634 width, height, xsdo->depth);
635 if (pixmap == 0) {
636 X11SD_DropSharedSegment(shminfo);
637 return 0;
638 }
639
640 xsdo->shmPMData.shmSegInfo = shminfo;
641 xsdo->shmPMData.bytesPerLine = scan;
642 return pixmap;
643 }
644
645 void X11SD_PuntPixmap(X11SDOps *xsdo, jint width, jint height)
646 {
647
648 if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
649 return;
650 }
651
652 /* we wouldn't be here if it's a shared pixmap, so no check
653 * for !usingShmPixmap.
654 */
655
656 xsdo->shmPMData.numBltsSinceRead = 0;
657
658 xsdo->shmPMData.pixelsReadSinceBlt += width * height;
659 if (xsdo->shmPMData.pixelsReadSinceBlt >
660 xsdo->shmPMData.pixelsReadThreshold) {
661 if (!xsdo->shmPMData.shmPixmap) {
662 xsdo->shmPMData.shmPixmap =
663 X11SD_CreateSharedPixmap(xsdo);
664 }
665 if (xsdo->shmPMData.shmPixmap) {
666 GC xgc = XCreateGC(awt_display, xsdo->shmPMData.shmPixmap, 0L, NULL);
667 if (xgc != NULL) {
668 xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
669 xsdo->drawable = xsdo->shmPMData.shmPixmap;
670 XCopyArea(awt_display,
671 xsdo->shmPMData.pixmap, xsdo->drawable, xgc,
672 0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
673 XSync(awt_display, False);
674 xsdo->shmPMData.xRequestSent = JNI_FALSE;
675 XFreeGC(awt_display, xgc);
676 }
677 }
678 }
679 }
680
681 void X11SD_UnPuntPixmap(X11SDOps *xsdo)
682 {
683 if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
684 return;
685 }
686 xsdo->shmPMData.pixelsReadSinceBlt = 0;
687 if (xsdo->shmPMData.numBltsSinceRead >=
688 xsdo->shmPMData.numBltsThreshold)
689 {
690 if (xsdo->shmPMData.usingShmPixmap) {
691 if (!xsdo->shmPMData.pixmap) {
692 xsdo->shmPMData.pixmap =
693 XCreatePixmap(awt_display,
694 RootWindow(awt_display,
695 xsdo->configData->awt_visInfo.screen),
696 xsdo->pmWidth, xsdo->pmHeight, xsdo->depth);
697 }
698 if (xsdo->shmPMData.pixmap) {
699 GC xgc = XCreateGC(awt_display, xsdo->shmPMData.pixmap, 0L, NULL);
700 if (xgc != NULL) {
701 xsdo->drawable = xsdo->shmPMData.pixmap;
702 XCopyArea(awt_display,
703 xsdo->shmPMData.shmPixmap, xsdo->drawable, xgc,
704 0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
705 XSync(awt_display, False);
706 XFreeGC(awt_display, xgc);
707 xsdo->shmPMData.xRequestSent = JNI_FALSE;
708 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
709 xsdo->shmPMData.numBltsThreshold *= 2;
710 }
711 }
712 }
713 } else {
714 xsdo->shmPMData.numBltsSinceRead++;
715 }
716 }
717
718 /**
719 * Determines if the cached image can be used for current operation.
720 * If the image is to be used to be read into by XShmGetImage,
721 * it must be close enough to avoid excessive reading from the screen;
722 * otherwise it should just be at least the size requested.
723 */
724 jboolean X11SD_CachedXImageFits(jint width, jint height, jint maxWidth,
725 jint maxHeight, jint depth, jboolean readBits)
726 {
727 /* we assume here that the cached image exists */
728 jint imgWidth = cachedXImage->width;
729 jint imgHeight = cachedXImage->height;
730
731 if (imgWidth < width || imgHeight < height || depth != cachedXImage->depth) {
732 /* doesn't fit if any of the cached image dimensions is smaller
733 or the depths are different */
734 return JNI_FALSE;
735 }
736
737 if (!readBits) {
738 /* Not reading from this image, so any image at least of the
739 size requested will do */
740 return JNI_TRUE;
741 }
742
743 if ((imgWidth < width + 64) && (imgHeight < height + 64)
744 && imgWidth <= maxWidth && imgHeight <= maxHeight)
745 {
746 /* Cached image's width/height shouldn't be more than 64 pixels
747 * larger than requested, because the region in XShmGetImage
748 * can't be specified and we don't want to read too much.
749 * Furthermore it has to be smaller than maxWidth/Height
750 * so drawables are not read out of bounds.
751 */
752 return JNI_TRUE;
753 }
754
755 return JNI_FALSE;
756 }
757 #endif /* MITSHM */
758
759 jint X11SD_InitWindow(JNIEnv *env, X11SDOps *xsdo)
760 {
761 if (xsdo->isPixmap == JNI_TRUE) {
762 return SD_FAILURE;
763 }
764 xsdo->cData = xsdo->configData->color_data;
765
766 return SD_SUCCESS;
767 }
768
769 static jint X11SD_Lock(JNIEnv *env,
770 SurfaceDataOps *ops,
771 SurfaceDataRasInfo *pRasInfo,
772 jint lockflags)
773 {
774 X11SDOps *xsdo = (X11SDOps *) ops;
775 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
776 int ret = SD_SUCCESS;
777
778 AWT_LOCK();
779
780 if (xsdo->invalid) {
781 AWT_UNLOCK();
782 SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
783 return SD_FAILURE;
784 }
785 xsdo->cData = xsdo->configData->color_data;
786 if (xsdo->drawable == 0 && X11SD_InitWindow(env, xsdo) == SD_FAILURE) {
787 AWT_UNLOCK();
788 return SD_FAILURE;
789 }
790 if ((lockflags & SD_LOCK_LUT) != 0 &&
791 (xsdo->cData == NULL ||
792 xsdo->cData->awt_icmLUT == NULL))
793 {
794 AWT_UNLOCK();
795 JNU_ThrowNullPointerException(env, "colormap lookup table");
796 return SD_FAILURE;
797 }
798 if ((lockflags & SD_LOCK_INVCOLOR) != 0 &&
799 (xsdo->cData == NULL ||
800 xsdo->cData->img_clr_tbl == NULL ||
801 xsdo->cData->img_oda_red == NULL ||
802 xsdo->cData->img_oda_green == NULL ||
803 xsdo->cData->img_oda_blue == NULL))
804 {
805 AWT_UNLOCK();
806 JNU_ThrowNullPointerException(env, "inverse colormap lookup table");
807 return SD_FAILURE;
808 }
809 if ((lockflags & SD_LOCK_INVGRAY) != 0 &&
810 (xsdo->cData == NULL ||
811 xsdo->cData->pGrayInverseLutData == NULL))
812 {
813 AWT_UNLOCK();
814 JNU_ThrowNullPointerException(env, "inverse gray lookup table");
815 return SD_FAILURE;
816 }
817 if (xsdo->dgaAvailable && (lockflags & (SD_LOCK_RD_WR))) {
818 int dgaret;
819
820 dgaret = (*pJDgaInfo->pGetLock)(env, awt_display, &xsdo->dgaDev,
821 xsdo->drawable, &xsdo->surfInfo,
822 pRasInfo->bounds.x1,
823 pRasInfo->bounds.y1,
824 pRasInfo->bounds.x2,
825 pRasInfo->bounds.y2);
826 if (dgaret == JDGA_SUCCESS) {
827 int wx = xsdo->surfInfo.window.lox;
828 int wy = xsdo->surfInfo.window.loy;
829 pRasInfo->bounds.x1 = xsdo->surfInfo.visible.lox - wx;
830 pRasInfo->bounds.y1 = xsdo->surfInfo.visible.loy - wy;
831 pRasInfo->bounds.x2 = xsdo->surfInfo.visible.hix - wx;
832 pRasInfo->bounds.y2 = xsdo->surfInfo.visible.hiy - wy;
833 xpriv->lockType = X11SD_LOCK_BY_DGA;
834 xpriv->lockFlags = lockflags;
835 return SD_SUCCESS;
836 } else if (dgaret == JDGA_UNAVAILABLE) {
837 xsdo->dgaAvailable = JNI_FALSE;
838 }
839 }
840 if (lockflags & SD_LOCK_RD_WR) {
841 if (lockflags & SD_LOCK_FASTEST) {
842 ret = SD_SLOWLOCK;
843 }
844 xpriv->lockType = X11SD_LOCK_BY_XIMAGE;
845 if (xsdo->isPixmap) {
846 #ifdef MITSHM
847 if (xsdo->shmPMData.usingShmPixmap) {
848 xpriv->lockType = X11SD_LOCK_BY_SHMEM;
849 }
850 #endif /* MITSHM */
851 if (pRasInfo->bounds.x1 < 0) {
852 pRasInfo->bounds.x1 = 0;
853 }
854 if (pRasInfo->bounds.y1 < 0) {
855 pRasInfo->bounds.y1 = 0;
856 }
857 if (pRasInfo->bounds.x2 > xsdo->pmWidth) {
858 pRasInfo->bounds.x2 = xsdo->pmWidth;
859 }
860 if (pRasInfo->bounds.y2 > xsdo->pmHeight) {
861 pRasInfo->bounds.y2 = xsdo->pmHeight;
862 }
863 }
864 } else {
865 /* They didn't lock for anything - we won't give them anything */
866 xpriv->lockType = X11SD_LOCK_BY_NULL;
867 }
868 xpriv->lockFlags = lockflags;
869 xpriv->img = NULL;
870
871 return ret;
872 /* AWT_UNLOCK() called in Unlock */
873 }
874
875 static void X11SD_GetRasInfo(JNIEnv *env,
876 SurfaceDataOps *ops,
877 SurfaceDataRasInfo *pRasInfo)
878 {
879 X11SDOps *xsdo = (X11SDOps *) ops;
880 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
881 jint lockFlags = xpriv->lockFlags;
882 jint depth = xsdo->depth;
883 int mult = xsdo->configData->pixelStride;
884
885 if (xsdo->dgaAvailable &&
886 xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
887 (lockFlags & SD_LOCK_FASTEST))
888 {
889 /* Try one more time to use DGA (now with smaller bounds)... */
890 int dgaret;
891
892 dgaret = (*pJDgaInfo->pGetLock)(env, awt_display, &xsdo->dgaDev,
893 xsdo->drawable, &xsdo->surfInfo,
894 pRasInfo->bounds.x1,
895 pRasInfo->bounds.y1,
896 pRasInfo->bounds.x2,
897 pRasInfo->bounds.y2);
898 if (dgaret == JDGA_SUCCESS) {
899 int wx = xsdo->surfInfo.window.lox;
900 int wy = xsdo->surfInfo.window.loy;
901 pRasInfo->bounds.x1 = xsdo->surfInfo.visible.lox - wx;
902 pRasInfo->bounds.y1 = xsdo->surfInfo.visible.loy - wy;
903 pRasInfo->bounds.x2 = xsdo->surfInfo.visible.hix - wx;
904 pRasInfo->bounds.y2 = xsdo->surfInfo.visible.hiy - wy;
905 xpriv->lockType = X11SD_LOCK_BY_DGA;
906 } else if (dgaret == JDGA_UNAVAILABLE) {
907 xsdo->dgaAvailable = JNI_FALSE;
908 }
909 }
910
911 if (xpriv->lockType == X11SD_LOCK_BY_DGA) {
912 int scan = xsdo->surfInfo.surfaceScan;
913 int wx = xsdo->surfInfo.window.lox;
914 int wy = xsdo->surfInfo.window.loy;
915 pRasInfo->rasBase =
916 (void *)(((uintptr_t) xsdo->surfInfo.basePtr) + (scan*wy + wx) * mult);
917 pRasInfo->pixelStride = mult;
918 pRasInfo->pixelBitOffset = 0;
919 pRasInfo->scanStride = scan * mult;
920 #ifdef MITSHM
921 } else if (xpriv->lockType == X11SD_LOCK_BY_SHMEM) {
922 if (xsdo->shmPMData.xRequestSent == JNI_TRUE) {
923 /* need to sync before using shared mem pixmap
924 if any x calls were issued for this pixmap */
925 XSync(awt_display, False);
926 xsdo->shmPMData.xRequestSent = JNI_FALSE;
927 }
928 xpriv->x = pRasInfo->bounds.x1;
929 xpriv->y = pRasInfo->bounds.y1;
930 pRasInfo->rasBase = xsdo->shmPMData.shmSegInfo->shmaddr;
931 pRasInfo->pixelStride = mult;
932 pRasInfo->pixelBitOffset = 0;
933 pRasInfo->scanStride = xsdo->shmPMData.bytesPerLine;
934 #endif /* MITSHM */
935 } else if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE) {
936 int x, y, w, h;
937 x = pRasInfo->bounds.x1;
938 y = pRasInfo->bounds.y1;
939 w = pRasInfo->bounds.x2 - x;
940 h = pRasInfo->bounds.y2 - y;
941
942 xpriv->img = X11SD_GetImage(env, xsdo, &pRasInfo->bounds, lockFlags);
943 if (xpriv->img) {
944 int scan = xpriv->img->bytes_per_line;
945 xpriv->x = x;
946 xpriv->y = y;
947 pRasInfo->rasBase = xpriv->img->data - x * mult - y * scan;
948 pRasInfo->pixelStride = mult;
949 pRasInfo->pixelBitOffset = 0;
950 pRasInfo->scanStride = scan;
951 } else {
952 pRasInfo->rasBase = NULL;
953 pRasInfo->pixelStride = 0;
954 pRasInfo->pixelBitOffset = 0;
955 pRasInfo->scanStride = 0;
956 }
957 } else {
958 /* They didn't lock for anything - we won't give them anything */
959 pRasInfo->rasBase = NULL;
960 pRasInfo->pixelStride = 0;
961 pRasInfo->pixelBitOffset = 0;
962 pRasInfo->scanStride = 0;
963 }
964 if (lockFlags & SD_LOCK_LUT) {
965 pRasInfo->lutBase = (jint *) xsdo->cData->awt_icmLUT;
966 pRasInfo->lutSize = xsdo->cData->awt_numICMcolors;
967 } else {
968 pRasInfo->lutBase = NULL;
969 pRasInfo->lutSize = 0;
970 }
971 if (lockFlags & SD_LOCK_INVCOLOR) {
972 pRasInfo->invColorTable = xsdo->cData->img_clr_tbl;
973 pRasInfo->redErrTable = xsdo->cData->img_oda_red;
974 pRasInfo->grnErrTable = xsdo->cData->img_oda_green;
975 pRasInfo->bluErrTable = xsdo->cData->img_oda_blue;
976 } else {
977 pRasInfo->invColorTable = NULL;
978 pRasInfo->redErrTable = NULL;
979 pRasInfo->grnErrTable = NULL;
980 pRasInfo->bluErrTable = NULL;
981 }
982 if (lockFlags & SD_LOCK_INVGRAY) {
983 pRasInfo->invGrayTable = xsdo->cData->pGrayInverseLutData;
984 } else {
985 pRasInfo->invGrayTable = NULL;
986 }
987 }
988
989 static void X11SD_Unlock(JNIEnv *env,
990 SurfaceDataOps *ops,
991 SurfaceDataRasInfo *pRasInfo)
992 {
993 X11SDOps *xsdo = (X11SDOps *) ops;
994 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
995
996 if (xpriv->lockType == X11SD_LOCK_BY_DGA) {
997 (*pJDgaInfo->pReleaseLock)(env, xsdo->dgaDev, xsdo->drawable);
998 } else if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
999 xpriv->img != NULL)
1000 {
1001 if (xpriv->lockFlags & SD_LOCK_WRITE) {
1002 int x = xpriv->x;
1003 int y = xpriv->y;
1004 int w = pRasInfo->bounds.x2 - x;
1005 int h = pRasInfo->bounds.y2 - y;
1006 Drawable drawable = xsdo->drawable;
1007 GC xgc = xsdo->cachedGC;
1008 if (xgc == NULL) {
1009 xsdo->cachedGC = xgc =
1010 XCreateGC(awt_display, drawable, 0L, NULL);
1011 }
1012
1013 if (xpriv->img->byte_order != nativeByteOrder) {
1014 /* switching bytes back in 24 and 32 bpp cases. */
1015 /* For 16 bit XLib will switch for us. */
1016 if (xsdo->depth > 16) {
1017 X11SD_SwapBytes(xsdo, xpriv->img, xsdo->depth,
1018 xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
1019 }
1020 }
1021
1022 #ifdef MITSHM
1023 if (xpriv->img->obdata != NULL) {
1024 XShmPutImage(awt_display, drawable, xgc,
1025 xpriv->img, 0, 0, x, y, w, h, False);
1026 XFlush(awt_display);
1027 } else {
1028 XPutImage(awt_display, drawable, xgc,
1029 xpriv->img, 0, 0, x, y, w, h);
1030 }
1031 if (xsdo->shmPMData.usingShmPixmap) {
1032 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1033 }
1034 #else
1035 XPutImage(awt_display, drawable, xgc,
1036 xpriv->img, 0, 0, x, y, w, h);
1037 #endif /* MITSHM */
1038
1039 (*pJDgaInfo->pXRequestSent)(env, xsdo->dgaDev, drawable);
1040 }
1041 X11SD_DisposeOrCacheXImage(xpriv->img);
1042 xpriv->img = (XImage *)NULL;
1043 }
1044 /* the background pixel is not valid anymore */
1045 if (xpriv->lockFlags & SD_LOCK_WRITE) {
1046 xsdo->isBgInitialized = JNI_FALSE;
1047 }
1048 xpriv->lockType = X11SD_LOCK_UNLOCKED;
1049 AWT_UNLOCK();
1050 }
1051
1052 static int
1053 X11SD_ClipToRoot(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
1054 X11SDOps *xsdo)
1055 {
1056 Position x1=0, y1=0, x2=0, y2=0;
1057 int tmpx, tmpy;
1058 Window tmpchild;
1059
1060 Window window = (Window)(xsdo->drawable); /* is always a Window */
1061 XWindowAttributes winAttr;
1062
1063 Status status = XGetWindowAttributes(awt_display, window, &winAttr);
1064 if (status == 0) {
1065 /* Failure, X window no longer valid. */
1066 return FALSE;
1067 }
1068 if (!XTranslateCoordinates(awt_display, window,
1069 RootWindowOfScreen(winAttr.screen),
1070 0, 0, &tmpx, &tmpy, &tmpchild)) {
1071 return FALSE;
1072 }
1073
1074 x1 = -(x1 + tmpx);
1075 y1 = -(y1 + tmpy);
1076
1077 x2 = x1 + DisplayWidth(awt_display, xsdo->configData->awt_visInfo.screen);
1078 y2 = y1 + DisplayHeight(awt_display, xsdo->configData->awt_visInfo.screen);
1079
1080 x1 = MAX(bounds->x1, x1);
1081 y1 = MAX(bounds->y1, y1);
1082 x2 = MIN(bounds->x2, x2);
1083 y2 = MIN(bounds->y2, y2);
1084 if ((x1 >= x2) || (y1 >= y2)) {
1085 return FALSE;
1086 }
1087 b->x1 = x1;
1088 b->y1 = y1;
1089 b->x2 = x2;
1090 b->y2 = y2;
1091
1092 return TRUE;
1093 }
1094
1095 /*
1096 * x1, y1, x2, y2 - our rectangle in the coord system of
1097 * the widget
1098 * px1, xy1, px2, py2 - current parent rect coords in the
1099 * same system
1100 */
1101 static int
1102 X11SD_FindClip(SurfaceDataBounds *b, SurfaceDataBounds *bounds, X11SDOps *xsdo)
1103 {
1104 return TRUE;
1105 }
1106
1107 static void
1108 X11SD_SwapBytes(X11SDOps *xsdo, XImage * img, int depth, int bpp) {
1109 int lengthInBytes = img->height * img->bytes_per_line;
1110 int i;
1111
1112 switch (depth) {
1113 case 12:
1114 case 15:
1115 case 16:
1116 {
1117 /* AB -> BA */
1118 unsigned short *d = (unsigned short *)img->data;
1119 unsigned short t;
1120 for (i = 0; i < lengthInBytes/2; i++) {
1121 t = *d;
1122 *d++ = (t >> 8) | (t << 8);
1123 }
1124 img->byte_order = nativeByteOrder;
1125 img->bitmap_bit_order = nativeByteOrder;
1126 break;
1127 }
1128 case 24:
1129 {
1130 /* ABC -> CBA */
1131 if (bpp == 24) {
1132 // 4517321: Only swap if we have a "real" ThreeByteBgr
1133 // visual (denoted by a red_mask of 0xff). Due to ambiguity
1134 // in the X11 spec, it appears that the swap is not required
1135 // on Linux configurations that use 24 bits per pixel (denoted
1136 // by a red_mask of 0xff0000).
1137 if (xsdo->configData->awt_visInfo.red_mask == 0xff) {
1138 int scan = img->bytes_per_line;
1139 unsigned char *d = (unsigned char *) img->data;
1140 unsigned char *d1;
1141 unsigned int t;
1142 int j;
1143
1144 for (i = 0; i < img->height; i++, d += scan) {
1145 d1 = d;
1146 for (j = 0; j < img->width; j++, d1 += 3) {
1147 /* not obvious opt from XLib src */
1148 t = d1[0]; d1[0] = d1[2]; d1[2] = t;
1149 }
1150 }
1151 }
1152 break;
1153 }
1154 }
1155 /* FALL THROUGH for 32-bit case */
1156 case 32:
1157 {
1158 /* ABCD -> DCBA */
1159 unsigned int *d = (unsigned int *) img->data;
1160 unsigned int t;
1161 for (i = 0; i < lengthInBytes/4; i++) {
1162 t = *d;
1163 *d++ = ((t >> 24) |
1164 ((t >> 8) & 0xff00) |
1165 ((t & 0xff00) << 8) |
1166 (t << 24));
1167 }
1168 break;
1169 }
1170 }
1171 }
1172
1173 static XImage * X11SD_GetImage(JNIEnv *env, X11SDOps *xsdo,
1174 SurfaceDataBounds *bounds,
1175 jint lockFlags)
1176 {
1177 int x, y, w, h, maxWidth, maxHeight;
1178 int scan;
1179 XImage * img = NULL;
1180 Drawable drawable;
1181 int depth = xsdo->depth;
1182 int mult = xsdo->configData->pixelStride;
1183 int pad = (mult == 3) ? 32 : mult * 8; // pad must be 8, 16, or 32
1184 jboolean readBits = lockFlags & SD_LOCK_NEED_PIXELS;
1185
1186 x = bounds->x1;
1187 y = bounds->y1;
1188 w = bounds->x2 - x;
1189 h = bounds->y2 - y;
1190
1191 #ifdef MITSHM
1192 if (useMitShmExt == CAN_USE_MITSHM) {
1193 if (xsdo->isPixmap) {
1194 if (readBits) {
1195 X11SD_PuntPixmap(xsdo, w, h);
1196 }
1197 maxWidth = xsdo->pmWidth;
1198 maxHeight = xsdo->pmHeight;
1199 } else {
1200 XWindowAttributes winAttr;
1201 if (XGetWindowAttributes(awt_display,
1202 (Window) xsdo->drawable, &winAttr) != 0) {
1203 maxWidth = winAttr.width;
1204 maxHeight = winAttr.height;
1205 } else {
1206 /* XGWA failed which isn't a good thing. Defaulting to using
1207 * x,y means that after the subtraction of these we will use
1208 * w=0, h=0 which is a reasonable default on such a failure.
1209 */
1210 maxWidth = x;
1211 maxHeight = y;
1212 }
1213 }
1214 maxWidth -= x;
1215 maxHeight -= y;
1216
1217 img = X11SD_GetSharedImage(xsdo, w, h, maxWidth, maxHeight, readBits);
1218 }
1219 #endif /* MITSHM */
1220 drawable = xsdo->drawable;
1221
1222 if (readBits) {
1223 #ifdef MITSHM
1224 if (img != NULL) {
1225 if (!XShmGetImage(awt_display, drawable, img, x, y, -1)) {
1226 X11SD_DisposeOrCacheXImage(img);
1227 img = NULL;
1228 }
1229 }
1230 if (img == NULL) {
1231 img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
1232 if (img != NULL) {
1233 img->obdata = NULL;
1234 }
1235 }
1236 #else
1237 img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
1238 #endif /* MITSHM */
1239 if (img == NULL) {
1240 SurfaceDataBounds temp;
1241 img = XCreateImage(awt_display,
1242 xsdo->configData->awt_visInfo.visual,
1243 depth, ZPixmap, 0, NULL, w, h, pad, 0);
1244 if (img == NULL) {
1245 return NULL;
1246 }
1247
1248 scan = img->bytes_per_line;
1249 img->data = malloc(h * scan);
1250 if (img->data == NULL) {
1251 XFree(img);
1252 return NULL;
1253 }
1254
1255 if (xsdo->isPixmap == JNI_FALSE &&
1256 X11SD_ClipToRoot(&temp, bounds, xsdo)) {
1257
1258 XImage * temp_image;
1259 temp_image = XGetImage(awt_display, drawable,
1260 temp.x1, temp.y1,
1261 temp.x2 - temp.x1,
1262 temp.y2 - temp.y1,
1263 -1, ZPixmap);
1264 if (temp_image == NULL) {
1265 XGrabServer(awt_display);
1266 if (X11SD_FindClip(&temp, bounds, xsdo)) {
1267 temp_image =
1268 XGetImage(awt_display, drawable,
1269 temp.x1, temp.y1,
1270 temp.x2 - temp.x1,
1271 temp.y2 - temp.y1,
1272 -1, ZPixmap);
1273 }
1274 XUngrabServer(awt_display);
1275 /* Workaround for bug 5039226 */
1276 XSync(awt_display, False);
1277 }
1278 if (temp_image != NULL) {
1279 int temp_scan, bytes_to_copy;
1280 char * img_addr, * temp_addr;
1281 int i;
1282
1283 img_addr = img->data +
1284 (temp.y1 - y) * scan + (temp.x1 - x) * mult;
1285 temp_scan = temp_image->bytes_per_line;
1286 temp_addr = temp_image->data;
1287 bytes_to_copy = (temp.x2 - temp.x1) * mult;
1288 for (i = temp.y1; i < temp.y2; i++) {
1289 memcpy(img_addr, temp_addr, bytes_to_copy);
1290 img_addr += scan;
1291 temp_addr += temp_scan;
1292 }
1293 XDestroyImage(temp_image);
1294 }
1295 }
1296 img->obdata = NULL;
1297 }
1298 if (depth > 8 && img->byte_order != nativeByteOrder) {
1299 X11SD_SwapBytes(xsdo, img, depth,
1300 xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
1301 }
1302 } else {
1303 /*
1304 * REMIND: This might be better to move to the Lock function
1305 * to avoid lengthy I/O pauses inside what may be a critical
1306 * section. This will be more critical when SD_LOCK_READ is
1307 * implemented. Another solution is to cache the pixels
1308 * to avoid reading for every operation.
1309 */
1310 if (img == NULL) {
1311 img = XCreateImage(awt_display,
1312 xsdo->configData->awt_visInfo.visual,
1313 depth, ZPixmap, 0, NULL, w, h, pad, 0);
1314 if (img == NULL) {
1315 return NULL;
1316 }
1317
1318 img->data = malloc(h * img->bytes_per_line);
1319 if (img->data == NULL) {
1320 XFree(img);
1321 return NULL;
1322 }
1323
1324 img->obdata = NULL;
1325
1326 if (img->byte_order != nativeByteOrder &&
1327 (depth == 15 || depth == 16 || depth == 12)) {
1328 /* bytes will be swapped by XLib. */
1329 img->byte_order = nativeByteOrder;
1330 img->bitmap_bit_order = nativeByteOrder;
1331 }
1332 }
1333 }
1334 return img;
1335 }
1336
1337 void X11SD_DisposeOrCacheXImage(XImage * image) {
1338 /* REMIND: might want to check if the new image worth caching. */
1339 /* Cache only shared images. Passed image is assumed to be non-null. */
1340 if (image->obdata != NULL) {
1341 if (cachedXImage != NULL) {
1342 X11SD_DisposeXImage(cachedXImage);
1343 }
1344 cachedXImage = image;
1345 } else {
1346 X11SD_DisposeXImage(image);
1347 }
1348 }
1349
1350 void X11SD_DisposeXImage(XImage * image) {
1351 if (image != NULL) {
1352 #ifdef MITSHM
1353 if (image->obdata != NULL) {
1354 X11SD_DropSharedSegment((XShmSegmentInfo*)image->obdata);
1355 image->obdata = NULL;
1356 }
1357 #endif /* MITSHM */
1358 XDestroyImage(image);
1359 }
1360 }
1361
1362 static JDgaStatus
1363 GetLockStub(JNIEnv *env, Display *display, void **dgaDev,
1364 Drawable d, JDgaSurfaceInfo *pSurface,
1365 jint lox, jint loy, jint hix, jint hiy)
1366 {
1367 return JDGA_UNAVAILABLE;
1368 }
1369
1370 static JDgaStatus
1371 ReleaseLockStub(JNIEnv *env, void *dgaDev, Drawable d)
1372 {
1373 return JDGA_FAILED;
1374 }
1375
1376 static void
1377 XRequestSentStub(JNIEnv *env, void *dgaDev, Drawable d)
1378 {
1379 }
1380
1381 static void
1382 LibDisposeStub(JNIEnv *env)
1383 {
1384 }
1385
1386 static JDgaLibInfo DgaLibInfoStub = {
1387 NULL,
1388 GetLockStub,
1389 ReleaseLockStub,
1390 XRequestSentStub,
1391 LibDisposeStub,
1392 };
1393
1394 void X11SD_LibDispose(JNIEnv *env) {
1395 AWT_LOCK();
1396 if (pJDgaInfo != NULL) {
1397 pJDgaInfo->pLibDispose(env);
1398 pJDgaInfo = &DgaLibInfoStub;
1399 }
1400 AWT_UNLOCK();
1401 }
1402
1403 void
1404 X11SD_DirectRenderNotify(JNIEnv *env, X11SDOps *xsdo)
1405 {
1406 #ifdef MITSHM
1407 if (xsdo->shmPMData.usingShmPixmap) {
1408 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1409 }
1410 #endif /* MITSHM */
1411 (*pJDgaInfo->pXRequestSent)(env, xsdo->dgaDev, xsdo->drawable);
1412 awt_output_flush();
1413 }
1414
1415 /*
1416 * Sets transparent pixels in the pixmap to
1417 * the specified solid background color and returns it.
1418 * Doesn't update source pixmap unless the color of the
1419 * transparent pixels is different from the specified color.
1420 *
1421 * Note: The AWT lock must be held by the current thread
1422 * while calling into this method.
1423 */
1424 static Drawable
1425 X11SD_GetPixmapWithBg(JNIEnv *env, X11SDOps *xsdo, jint pixel)
1426 {
1427 /* assert AWT_CHECK_HAVE_LOCK(); */
1428
1429 if (xsdo->invalid) {
1430 AWT_UNLOCK();
1431 SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
1432 return 0;
1433 }
1434
1435 /* the image doesn't have transparency, just return it */
1436 if (xsdo->bitmask == 0) {
1437 /* don't need to unlock here, the caller will unlock through
1438 the release call */
1439 return xsdo->drawable;
1440 }
1441
1442 /* Check if current color of the transparent pixels is different
1443 from the specified one */
1444 if (xsdo->isBgInitialized == JNI_FALSE || xsdo->bgPixel != pixel) {
1445 GC srcGC;
1446 GC bmGC;
1447
1448 if (xsdo->drawable == 0) {
1449 AWT_UNLOCK();
1450 return 0;
1451 }
1452
1453 bmGC = XCreateGC(awt_display, xsdo->bitmask, 0, NULL);
1454 if (bmGC == NULL) {
1455 AWT_UNLOCK();
1456 return 0;
1457 }
1458
1459 /* invert the bitmask */
1460 XSetFunction(awt_display, bmGC, GXxor);
1461 XSetForeground(awt_display, bmGC, 1);
1462 XFillRectangle(awt_display, xsdo->bitmask, bmGC,
1463 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1464
1465 srcGC = XCreateGC(awt_display, xsdo->drawable, 0L, NULL);
1466 if (srcGC == NULL) {
1467 XFreeGC(awt_display, bmGC);
1468 AWT_UNLOCK();
1469 return 0;
1470 }
1471
1472 /* set transparent pixels in the source pm to the bg color */
1473 XSetClipMask(awt_display, srcGC, xsdo->bitmask);
1474 XSetForeground(awt_display, srcGC, pixel);
1475 XFillRectangle(awt_display, xsdo->drawable, srcGC,
1476 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1477
1478 /* invert the mask back */
1479 XFillRectangle(awt_display, xsdo->bitmask, bmGC,
1480 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1481
1482 XFreeGC(awt_display, bmGC);
1483 XFreeGC(awt_display, srcGC);
1484 xsdo->bgPixel = pixel;
1485 xsdo->isBgInitialized = JNI_TRUE;
1486 }
1487
1488 return xsdo->drawable;
1489 }
1490
1491 static void
1492 X11SD_ReleasePixmapWithBg(JNIEnv *env, X11SDOps *xsdo)
1493 {
1494 #ifdef MITSHM
1495 if (xsdo->shmPMData.usingShmPixmap) {
1496 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1497 }
1498 #endif /* MITSHM */
1499 }
1500
1501 #endif /* !HEADLESS */
1502
1503 /*
1504 * Class: sun_java2d_x11_X11SurfaceData
1505 * Method: XCreateGC
1506 * Signature: (I)J
1507 */
1508 JNIEXPORT jlong JNICALL
1509 Java_sun_java2d_x11_XSurfaceData_XCreateGC
1510 (JNIEnv *env, jclass xsd, jlong pXSData)
1511 {
1512 jlong ret;
1513
1514 #ifndef HEADLESS
1515 X11SDOps *xsdo;
1516
1517 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XCreateGC");
1518
1519 xsdo = (X11SDOps *) pXSData;
1520 if (xsdo == NULL) {
1521 return 0L;
1522 }
1523
1524 xsdo->javaGC = XCreateGC(awt_display, xsdo->drawable, 0, NULL);
1525 ret = (jlong) xsdo->javaGC;
1526 #else /* !HEADLESS */
1527 ret = 0L;
1528 #endif /* !HEADLESS */
1529
1530 return ret;
1531 }
1532
1533 /*
1534 * Class: sun_java2d_x11_X11SurfaceData
1535 * Method: XResetClip
1536 * Signature: (JIIIILsun/java2d/pipe/Region;)V
1537 */
1538 JNIEXPORT void JNICALL
1539 Java_sun_java2d_x11_XSurfaceData_XResetClip
1540 (JNIEnv *env, jclass xsd, jlong xgc)
1541 {
1542 #ifndef HEADLESS
1543 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XResetClip");
1544 XSetClipMask(awt_display, (GC) xgc, None);
1545 #endif /* !HEADLESS */
1546 }
1547
1548 /*
1549 * Class: sun_java2d_x11_X11SurfaceData
1550 * Method: XSetClip
1551 * Signature: (JIIIILsun/java2d/pipe/Region;)V
1552 */
1553 JNIEXPORT void JNICALL
1554 Java_sun_java2d_x11_XSurfaceData_XSetClip
1555 (JNIEnv *env, jclass xsd, jlong xgc,
1556 jint x1, jint y1, jint x2, jint y2,
1557 jobject complexclip)
1558 {
1559 #ifndef HEADLESS
1560 int numrects;
1561 XRectangle rects[256];
1562 XRectangle *pRect = rects;
1563
1564 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetClip");
1565
1566 numrects = RegionToYXBandedRectangles(env,
1567 x1, y1, x2, y2, complexclip,
1568 &pRect, 256);
1569
1570 XSetClipRectangles(awt_display, (GC) xgc, 0, 0, pRect, numrects, YXBanded);
1571
1572 if (pRect != rects) {
1573 free(pRect);
1574 }
1575 #endif /* !HEADLESS */
1576 }
1577
1578 /*
1579 * Class: sun_java2d_x11_X11SurfaceData
1580 * Method: XSetCopyMode
1581 * Signature: (J)V
1582 */
1583 JNIEXPORT void JNICALL
1584 Java_sun_java2d_x11_X11SurfaceData_XSetCopyMode
1585 (JNIEnv *env, jclass xsd, jlong xgc)
1586 {
1587 #ifndef HEADLESS
1588 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetCopyMode");
1589 XSetFunction(awt_display, (GC) xgc, GXcopy);
1590 #endif /* !HEADLESS */
1591 }
1592
1593 /*
1594 * Class: sun_java2d_x11_X11SurfaceData
1595 * Method: XSetXorMode
1596 * Signature: (J)V
1597 */
1598 JNIEXPORT void JNICALL
1599 Java_sun_java2d_x11_X11SurfaceData_XSetXorMode
1600 (JNIEnv *env, jclass xr, jlong xgc)
1601 {
1602 #ifndef HEADLESS
1603 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetXorMode");
1604 XSetFunction(awt_display, (GC) xgc, GXxor);
1605 #endif /* !HEADLESS */
1606 }
1607
1608 /*
1609 * Class: sun_java2d_x11_X11SurfaceData
1610 * Method: XSetForeground
1611 * Signature: (JI)V
1612 */
1613 JNIEXPORT void JNICALL
1614 Java_sun_java2d_x11_X11SurfaceData_XSetForeground
1615 (JNIEnv *env, jclass xsd, jlong xgc, jint pixel)
1616 {
1617 #ifndef HEADLESS
1618 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetForeground");
1619 XSetForeground(awt_display, (GC) xgc, pixel);
1620 #endif /* !HEADLESS */
1621 }
1622
1623 /*
1624 * Class: sun_java2d_x11_X11SurfaceData
1625 * Method: XSetGraphicsExposures
1626 * Signature: (JZ)V
1627 */
1628 JNIEXPORT void JNICALL
1629 Java_sun_java2d_x11_XSurfaceData_XSetGraphicsExposures
1630 (JNIEnv *env, jclass xsd, jlong xgc, jboolean needExposures)
1631 {
1632 #ifndef HEADLESS
1633 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetGraphicsExposures");
1634 XSetGraphicsExposures(awt_display, (GC) xgc, needExposures ? True : False);
1635 #endif /* !HEADLESS */
1636 }