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 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 AwtGraphicsConfigDataPtr
69 getGraphicsConfigFromComponentPeer(JNIEnv *env, jobject this);
70 extern struct X11GraphicsConfigIDs x11GraphicsConfigIDs;
71
72 static int X11SD_FindClip(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
73 X11SDOps *xsdo);
74 static int X11SD_ClipToRoot(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
75 X11SDOps *xsdo);
76 static void X11SD_SwapBytes(X11SDOps *xsdo, XImage *img, int depth, int bpp);
77 static XImage * X11SD_GetImage(JNIEnv *env, X11SDOps *xsdo,
78 SurfaceDataBounds *bounds,
79 jint lockFlags);
80
81 extern jfieldID validID;
82
83 static int nativeByteOrder;
84 static jboolean dgaAvailable = JNI_FALSE;
85 static jboolean useDGAWithPixmaps = JNI_FALSE;
86 static jclass xorCompClass;
87
88 jint useMitShmExt = CANT_USE_MITSHM;
89 jint useMitShmPixmaps = CANT_USE_MITSHM;
90 jint forceSharedPixmaps = JNI_FALSE;
91
92 /* Cached shared image, one for all surface datas. */
93 static XImage * cachedXImage;
94
95 #endif /* !HEADLESS */
96
97 jboolean XShared_initIDs(JNIEnv *env, jboolean allowShmPixmaps)
98 {
99 #ifndef HEADLESS
100 union {
101 char c[4];
102 int i;
103 } endian;
104
105 endian.i = 0xff000000;
106 nativeByteOrder = (endian.c[0]) ? MSBFirst : LSBFirst;
107
108 dgaAvailable = JNI_FALSE;
109
110 cachedXImage = NULL;
111
112 if (sizeof(X11RIPrivate) > SD_RASINFO_PRIVATE_SIZE) {
113 JNU_ThrowInternalError(env, "Private RasInfo structure too large!");
114 return JNI_FALSE;
115 }
116
117 #ifdef MITSHM
118 if (getenv("NO_AWT_MITSHM") == NULL &&
119 getenv("NO_J2D_MITSHM") == NULL) {
120 char * force;
121 TryInitMITShm(env, &useMitShmExt, &useMitShmPixmaps);
122
123 if(allowShmPixmaps) {
124 useMitShmPixmaps = (useMitShmPixmaps == CAN_USE_MITSHM);
125 force = getenv("J2D_PIXMAPS");
126 if (force != NULL) {
127 if (useMitShmPixmaps && (strcmp(force, "shared") == 0)) {
128 forceSharedPixmaps = JNI_TRUE;
129 } else if (strcmp(force, "server") == 0) {
130 useMitShmPixmaps = JNI_FALSE;
131 }
132 }
133 }else {
134 useMitShmPixmaps = JNI_FALSE;
135 }
136 }
137
138 return JNI_TRUE;
139 #endif /* MITSHM */
140
141 #endif /* !HEADLESS */
142 }
143
144
145 /*
146 * Class: sun_java2d_x11_X11SurfaceData
147 * Method: initIDs
148 * Signature: (Ljava/lang/Class;Z)V
149 */
150 JNIEXPORT void JNICALL
151 Java_sun_java2d_x11_X11SurfaceData_initIDs(JNIEnv *env, jclass xsd,
152 jclass XORComp, jboolean tryDGA)
153 {
154 #ifndef HEADLESS
155 if(XShared_initIDs(env, JNI_TRUE))
156 {
157 void *lib = 0;
158
159 xorCompClass = (*env)->NewGlobalRef(env, XORComp);
160
161 if (tryDGA && (getenv("NO_J2D_DGA") == NULL)) {
162 /* we use RTLD_NOW because of bug 4032715 */
163 lib = dlopen(JNI_LIB_NAME("sunwjdga"), RTLD_NOW);
164 }
165
166 if (lib != NULL) {
167 JDgaStatus ret = JDGA_FAILED;
168 void *sym = dlsym(lib, "JDgaLibInit");
169 if (sym != NULL) {
170 theJDgaInfo.display = awt_display;
171 AWT_LOCK();
172 ret = (*(JDgaLibInitFunc *)sym)(env, &theJDgaInfo);
173 AWT_UNLOCK();
174 }
175 if (ret == JDGA_SUCCESS) {
176 pJDgaInfo = &theJDgaInfo;
177 dgaAvailable = JNI_TRUE;
178 useDGAWithPixmaps = (getenv("USE_DGA_PIXMAPS") != NULL);
179 } else {
180 dlclose(lib);
181 lib = NULL;
182 }
183 }
184 }
185 #endif /* !HEADLESS */
186 }
187
188 /*
189 * Class: sun_java2d_x11_X11SurfaceData
190 * Method: isDrawableValid
191 * Signature: ()Z
192 */
193 JNIEXPORT jboolean JNICALL
194 Java_sun_java2d_x11_XSurfaceData_isDrawableValid(JNIEnv *env, jobject this)
195 {
196 jboolean ret = JNI_FALSE;
197
198 #ifndef HEADLESS
199 X11SDOps *xsdo = X11SurfaceData_GetOps(env, this);
200
201 AWT_LOCK();
202 if (xsdo->drawable != 0 || X11SD_InitWindow(env, xsdo) == SD_SUCCESS) {
203 ret = JNI_TRUE;
204 }
205 AWT_UNLOCK();
206 #endif /* !HEADLESS */
207
208 return ret;
209 }
210
211 /*
212 * Class: sun_java2d_x11_X11SurfaceData
213 * Method: isShmPMAvailable
214 * Signature: ()Z
215 */
216 JNIEXPORT jboolean JNICALL
217 Java_sun_java2d_x11_X11SurfaceData_isShmPMAvailable(JNIEnv *env, jobject this)
218 {
219 #if defined(HEADLESS) || !defined(MITSHM)
220 return JNI_FALSE;
221 #else
222 return useMitShmPixmaps;
223 #endif /* HEADLESS, MITSHM */
224 }
225
226 /*
227 * Class: sun_java2d_x11_X11SurfaceData
228 * Method: isDgaAvailable
229 * Signature: ()Z
230 */
231 JNIEXPORT jboolean JNICALL
232 Java_sun_java2d_x11_X11SurfaceData_isDgaAvailable(JNIEnv *env, jobject this)
233 {
234 #if defined(HEADLESS) || defined(__linux__)
235 return JNI_FALSE;
236 #else
237 return dgaAvailable;
238 #endif /* HEADLESS */
239 }
240
241 /*
242 * Class: sun_java2d_x11_X11SurfaceData
243 * Method: initOps
244 * Signature: (Ljava/lang/Object;I)V
245 */
246 JNIEXPORT void JNICALL
247 Java_sun_java2d_x11_XSurfaceData_initOps(JNIEnv *env, jobject xsd,
248 jobject peer,
249 jobject graphicsConfig, jint depth)
250 {
251 #ifndef HEADLESS
252 X11SDOps *xsdo = (X11SDOps*)SurfaceData_InitOps(env, xsd, sizeof(X11SDOps));
253 if (xsdo == NULL) {
254 JNU_ThrowOutOfMemoryError(env, "Initialization of SurfaceData failed.");
255 return;
256 }
257 xsdo->sdOps.Lock = X11SD_Lock;
258 xsdo->sdOps.GetRasInfo = X11SD_GetRasInfo;
259 xsdo->sdOps.Unlock = X11SD_Unlock;
260 xsdo->sdOps.Dispose = X11SD_Dispose;
261 xsdo->GetPixmapWithBg = X11SD_GetPixmapWithBg;
262 xsdo->ReleasePixmapWithBg = X11SD_ReleasePixmapWithBg;
263 xsdo->widget = NULL;
264 if (peer != NULL) {
265 xsdo->drawable = JNU_CallMethodByName(env, NULL, peer, "getWindow", "()J").j;
266 } else {
267 xsdo->drawable = 0;
268 }
269 xsdo->depth = depth;
270 xsdo->dgaAvailable = dgaAvailable;
271 xsdo->isPixmap = JNI_FALSE;
272 xsdo->bitmask = 0;
273 xsdo->bgPixel = 0;
274 xsdo->isBgInitialized = JNI_FALSE;
275 #ifdef MITSHM
276 xsdo->shmPMData.shmSegInfo = NULL;
277 xsdo->shmPMData.xRequestSent = JNI_FALSE;
278 xsdo->shmPMData.pmSize = 0;
279 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
280 xsdo->shmPMData.pixmap = 0;
281 xsdo->shmPMData.shmPixmap = 0;
282 xsdo->shmPMData.numBltsSinceRead = 0;
283 xsdo->shmPMData.pixelsReadSinceBlt = 0;
284 xsdo->shmPMData.numBltsThreshold = 2;
285 #endif /* MITSHM */
286
287 xsdo->configData = (AwtGraphicsConfigDataPtr)
288 JNU_GetLongFieldAsPtr(env,
289 graphicsConfig,
290 x11GraphicsConfigIDs.aData);
291 if (xsdo->configData == NULL) {
292 JNU_ThrowNullPointerException(env,
293 "Native GraphicsConfig data block missing");
294 return;
295 }
296 if (depth > 12) {
297 xsdo->pixelmask = (xsdo->configData->awt_visInfo.red_mask |
298 xsdo->configData->awt_visInfo.green_mask |
299 xsdo->configData->awt_visInfo.blue_mask);
300 } else if (depth == 12) {
301 xsdo->pixelmask = 0xfff;
302 } else {
303 xsdo->pixelmask = 0xff;
304 }
305
306 xsdo->xrPic = None;
307 #endif /* !HEADLESS */
308 }
309
310 /*
311 * Class: sun_java2d_x11_X11SurfaceData
312 * Method: flushNativeSurface
313 * Signature: ()V
314 */
315 JNIEXPORT void JNICALL
316 Java_sun_java2d_x11_XSurfaceData_flushNativeSurface(JNIEnv *env, jobject xsd)
317 {
318 #ifndef HEADLESS
319 SurfaceDataOps *ops = SurfaceData_GetOps(env, xsd);
320
321 if (ops != NULL) {
322 X11SD_Dispose(env, ops);
323 }
324 #endif /* !HEADLESS */
325 }
326
327
328 JNIEXPORT X11SDOps * JNICALL
329 X11SurfaceData_GetOps(JNIEnv *env, jobject sData)
330 {
331 #ifdef HEADLESS
332 return NULL;
333 #else
334 SurfaceDataOps *ops = SurfaceData_GetOps(env, sData);
335 if (ops != NULL && ops->Lock != X11SD_Lock) {
336 SurfaceData_ThrowInvalidPipeException(env, "not an X11 SurfaceData");
337 ops = NULL;
338 }
339 return (X11SDOps *) ops;
340 #endif /* !HEADLESS */
341 }
342
343 /*
344 * Method for disposing X11SD-specific data
345 */
346 static void
347 X11SD_Dispose(JNIEnv *env, SurfaceDataOps *ops)
348 {
349 #ifndef HEADLESS
350 /* ops is assumed non-null as it is checked in SurfaceData_DisposeOps */
351 X11SDOps * xsdo = (X11SDOps*)ops;
352
353 AWT_LOCK();
354
355 xsdo->invalid = JNI_TRUE;
356
357 if (xsdo->xrPic != None) {
358 XRenderFreePicture(awt_display, xsdo->xrPic);
359 xsdo->xrPic = None;
360 }
361
362 if (xsdo->isPixmap == JNI_TRUE && xsdo->drawable != 0) {
363 #ifdef MITSHM
364 if (xsdo->shmPMData.shmSegInfo != NULL) {
365 X11SD_DropSharedSegment(xsdo->shmPMData.shmSegInfo);
366 xsdo->shmPMData.shmSegInfo = NULL;
367 }
368 if (xsdo->shmPMData.pixmap) {
369 XFreePixmap(awt_display, xsdo->shmPMData.pixmap);
370 xsdo->shmPMData.pixmap = 0;
371 }
372 if (xsdo->shmPMData.shmPixmap) {
373 XFreePixmap(awt_display, xsdo->shmPMData.shmPixmap);
374 xsdo->shmPMData.shmPixmap = 0;
375 }
376 #else
377 XFreePixmap(awt_display, xsdo->drawable);
378 #endif /* MITSHM */
379 xsdo->drawable = 0;
380 }
381 if (xsdo->bitmask != 0) {
382 XFreePixmap(awt_display, xsdo->bitmask);
383 xsdo->bitmask = 0;
384 }
385 if (xsdo->javaGC != NULL) {
386 XFreeGC(awt_display, xsdo->javaGC);
387 xsdo->javaGC = NULL;
388 }
389 if (xsdo->cachedGC != NULL) {
390 XFreeGC(awt_display, xsdo->cachedGC);
391 xsdo->cachedGC = NULL;
392 }
393
394 if(xsdo->xrPic != None) {
395 XRenderFreePicture(awt_display, xsdo->xrPic);
396 }
397
398 AWT_UNLOCK();
399 #endif /* !HEADLESS */
400 }
401 /*
402 * Class: sun_java2d_x11_X11SurfaceData
403 * Method: setInvalid
404 * Signature: ()V
405 */
406 JNIEXPORT void JNICALL
407 Java_sun_java2d_x11_XSurfaceData_setInvalid(JNIEnv *env, jobject xsd)
408 {
409 #ifndef HEADLESS
410 X11SDOps *xsdo = (X11SDOps *) SurfaceData_GetOps(env, xsd);
411
412 if (xsdo != NULL) {
413 xsdo->invalid = JNI_TRUE;
414 }
415 #endif /* !HEADLESS */
416 }
417
418
419 jboolean XShared_initSurface(JNIEnv *env, X11SDOps *xsdo, jint depth, jint width, jint height, jlong drawable)
420 {
421 #ifndef HEADLESS
422
423 if (drawable != (jlong)0) {
424 /* Double-buffering */
425 xsdo->drawable = drawable;
426 xsdo->isPixmap = JNI_FALSE;
427 } else {
428 xsdo->isPixmap = JNI_TRUE;
429 /* REMIND: workaround for bug 4420220 on pgx32 boards:
430 don't use DGA with pixmaps unless USE_DGA_PIXMAPS is set.
431 */
432 xsdo->dgaAvailable = useDGAWithPixmaps;
433
434 xsdo->pmWidth = width;
435 xsdo->pmHeight = height;
436
437 #ifdef MITSHM
438 xsdo->shmPMData.pmSize = width * height * depth;
439 xsdo->shmPMData.pixelsReadThreshold = width * height / 8;
440 if (forceSharedPixmaps) {
441 AWT_LOCK();
442 xsdo->drawable = X11SD_CreateSharedPixmap(xsdo);
443 AWT_UNLOCK();
444 if (xsdo->drawable) {
445 xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
446 xsdo->shmPMData.shmPixmap = xsdo->drawable;
447 return JNI_TRUE;
448 }
449 }
450 #endif /* MITSHM */
451
452 AWT_LOCK();
453 xsdo->drawable =
454 XCreatePixmap(awt_display,
455 RootWindow(awt_display,
456 xsdo->configData->awt_visInfo.screen),
457 width, height, depth);
458 AWT_UNLOCK();
459 #ifdef MITSHM
460 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
461 xsdo->shmPMData.pixmap = xsdo->drawable;
462 #endif /* MITSHM */
463 }
464 if (xsdo->drawable == 0) {
465 JNU_ThrowOutOfMemoryError(env,
466 "Can't create offscreen surface");
467 return JNI_FALSE;
468 }
469
470 return JNI_TRUE;
471 #endif /* !HEADLESS */
472 }
473
474
475 /*
476 * Class: sun_java2d_x11_X11SurfaceData
477 * Method: initSurface
478 * Signature: ()V
479 */
480 JNIEXPORT void JNICALL
481 Java_sun_java2d_x11_X11SurfaceData_initSurface(JNIEnv *env, jclass xsd,
482 jint depth,
483 jint width, jint height,
484 jlong drawable)
485 {
486 #ifndef HEADLESS
487 X11SDOps *xsdo = X11SurfaceData_GetOps(env, xsd);
488 if (xsdo == NULL) {
489 return;
490 }
491
492 if (xsdo->configData->awt_cmap == (Colormap)NULL) {
493 awtJNI_CreateColorData(env, xsdo->configData, 1);
494 }
495 /* color_data will be initialized in awtJNI_CreateColorData for
496 8-bit visuals */
497 xsdo->cData = xsdo->configData->color_data;
498
499 XShared_initSurface(env, xsdo, depth, width, height, drawable);
500 xsdo->xrPic = NULL;
501 #endif /* !HEADLESS */
502 }
503
504 #ifndef HEADLESS
505
506 #ifdef MITSHM
507
508 void X11SD_DropSharedSegment(XShmSegmentInfo *shminfo)
509 {
510 if (shminfo != NULL) {
511 XShmDetach(awt_display, shminfo);
512 shmdt(shminfo->shmaddr);
513 /* REMIND: we don't need shmctl(shminfo->shmid, IPC_RMID, 0); here. */
514 /* Check X11SD_CreateSharedImage() for the explanation */
515 }
516 }
517
518 XImage* X11SD_CreateSharedImage(X11SDOps *xsdo,
519 jint width, jint height)
520 {
521 XImage *img = NULL;
522 XShmSegmentInfo *shminfo;
523
524 shminfo = malloc(sizeof(XShmSegmentInfo));
525 if (shminfo == NULL) {
526 return NULL;
527 }
528 memset(shminfo, 0, sizeof(XShmSegmentInfo));
529
530 img = XShmCreateImage(awt_display, xsdo->configData->awt_visInfo.visual,
531 xsdo->depth, ZPixmap, NULL, shminfo,
532 width, height);
533 if (img == NULL) {
534 free((void *)shminfo);
535 return NULL;
536 }
537 shminfo->shmid =
538 shmget(IPC_PRIVATE, height * img->bytes_per_line, IPC_CREAT|0777);
539 if (shminfo->shmid < 0) {
540 J2dRlsTraceLn1(J2D_TRACE_ERROR,
541 "X11SD_SetupSharedSegment shmget has failed: %s",
542 strerror(errno));
543 free((void *)shminfo);
544 XDestroyImage(img);
545 return NULL;
546 }
547
548 shminfo->shmaddr = (char *) shmat(shminfo->shmid, 0, 0);
549 if (shminfo->shmaddr == ((char *) -1)) {
550 shmctl(shminfo->shmid, IPC_RMID, 0);
551 J2dRlsTraceLn1(J2D_TRACE_ERROR,
552 "X11SD_SetupSharedSegment shmat has failed: %s",
553 strerror(errno));
554 free((void *)shminfo);
555 XDestroyImage(img);
556 return NULL;
557 }
558
559 shminfo->readOnly = False;
560
561 JNIEnv* env = (JNIEnv*)JNU_GetEnv(jvm, JNI_VERSION_1_2);
562 AWT_LOCK();
563 jboolean xShmAttachResult = TryXShmAttach(env, awt_display, shminfo);
564 AWT_UNLOCK();
565 /*
566 * Once the XSync round trip has finished then we
567 * can get rid of the id so that this segment does not stick
568 * around after we go away, holding system resources.
569 */
570 shmctl(shminfo->shmid, IPC_RMID, 0);
571
572 if (xShmAttachResult == JNI_FALSE) {
573 J2dRlsTraceLn1(J2D_TRACE_ERROR,
574 "X11SD_SetupSharedSegment XShmAttach has failed: %s",
575 strerror(errno));
576 shmdt(shminfo->shmaddr);
577 free((void *)shminfo);
578 XDestroyImage(img);
579 return NULL;
580 }
581
582 img->data = shminfo->shmaddr;
583 img->obdata = (char *)shminfo;
584
585 return img;
586 }
587
588 XImage* X11SD_GetSharedImage(X11SDOps *xsdo, jint width, jint height,
589 jint maxWidth, jint maxHeight, jboolean readBits)
590 {
591 XImage * retImage = NULL;
592 if (cachedXImage != NULL &&
593 X11SD_CachedXImageFits(width, height, maxWidth, maxHeight,
594 xsdo->depth, readBits)) {
595 /* sync so previous data gets flushed */
596 XSync(awt_display, False);
597 retImage = cachedXImage;
598 cachedXImage = (XImage *)NULL;
599 } else if (width * height * xsdo->depth > 0x10000) {
600 retImage = X11SD_CreateSharedImage(xsdo, width, height);
601 }
602 return retImage;
603 }
604
605 Drawable X11SD_CreateSharedPixmap(X11SDOps *xsdo)
606 {
607 XShmSegmentInfo *shminfo;
608 XImage *img = NULL;
609 Drawable pixmap;
610 int scan;
611 int width = xsdo->pmWidth;
612 int height = xsdo->pmHeight;
613
614 if (xsdo->shmPMData.pmSize < 0x10000) {
615 /* only use shared mem pixmaps for relatively big images */
616 return 0;
617 }
618
619 /* need to create shared(!) image to get bytes_per_line */
620 img = X11SD_CreateSharedImage(xsdo, width, height);
621 if (img == NULL) {
622 return 0;
623 }
624 scan = img->bytes_per_line;
625 shminfo = (XShmSegmentInfo*)img->obdata;
626 XFree(img);
627
628 pixmap =
629 XShmCreatePixmap(awt_display,
630 RootWindow(awt_display,
631 xsdo->configData->awt_visInfo.screen),
632 shminfo->shmaddr, shminfo,
633 width, height, xsdo->depth);
634 if (pixmap == 0) {
635 X11SD_DropSharedSegment(shminfo);
636 return 0;
637 }
638
639 xsdo->shmPMData.shmSegInfo = shminfo;
640 xsdo->shmPMData.bytesPerLine = scan;
641 return pixmap;
642 }
643
644 void X11SD_PuntPixmap(X11SDOps *xsdo, jint width, jint height)
645 {
646
647 if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
648 return;
649 }
650
651 /* we wouldn't be here if it's a shared pixmap, so no check
652 * for !usingShmPixmap.
653 */
654
655 xsdo->shmPMData.numBltsSinceRead = 0;
656
657 xsdo->shmPMData.pixelsReadSinceBlt += width * height;
658 if (xsdo->shmPMData.pixelsReadSinceBlt >
659 xsdo->shmPMData.pixelsReadThreshold) {
660 if (!xsdo->shmPMData.shmPixmap) {
661 xsdo->shmPMData.shmPixmap =
662 X11SD_CreateSharedPixmap(xsdo);
663 }
664 if (xsdo->shmPMData.shmPixmap) {
665 GC xgc = XCreateGC(awt_display, xsdo->shmPMData.shmPixmap, 0L, NULL);
666 if (xgc != NULL) {
667 xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
668 xsdo->drawable = xsdo->shmPMData.shmPixmap;
669 XCopyArea(awt_display,
670 xsdo->shmPMData.pixmap, xsdo->drawable, xgc,
671 0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
672 XSync(awt_display, False);
673 xsdo->shmPMData.xRequestSent = JNI_FALSE;
674 XFreeGC(awt_display, xgc);
675 }
676 }
677 }
678 }
679
680 void X11SD_UnPuntPixmap(X11SDOps *xsdo)
681 {
682 if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
683 return;
684 }
685 xsdo->shmPMData.pixelsReadSinceBlt = 0;
686 if (xsdo->shmPMData.numBltsSinceRead >=
687 xsdo->shmPMData.numBltsThreshold)
688 {
689 if (xsdo->shmPMData.usingShmPixmap) {
690 if (!xsdo->shmPMData.pixmap) {
691 xsdo->shmPMData.pixmap =
692 XCreatePixmap(awt_display,
693 RootWindow(awt_display,
694 xsdo->configData->awt_visInfo.screen),
695 xsdo->pmWidth, xsdo->pmHeight, xsdo->depth);
696 }
697 if (xsdo->shmPMData.pixmap) {
698 GC xgc = XCreateGC(awt_display, xsdo->shmPMData.pixmap, 0L, NULL);
699 if (xgc != NULL) {
700 xsdo->drawable = xsdo->shmPMData.pixmap;
701 XCopyArea(awt_display,
702 xsdo->shmPMData.shmPixmap, xsdo->drawable, xgc,
703 0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
704 XSync(awt_display, False);
705 XFreeGC(awt_display, xgc);
706 xsdo->shmPMData.xRequestSent = JNI_FALSE;
707 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
708 xsdo->shmPMData.numBltsThreshold *= 2;
709 }
710 }
711 }
712 } else {
713 xsdo->shmPMData.numBltsSinceRead++;
714 }
715 }
716
717 /**
718 * Determines if the cached image can be used for current operation.
719 * If the image is to be used to be read into by XShmGetImage,
720 * it must be close enough to avoid excessive reading from the screen;
721 * otherwise it should just be at least the size requested.
722 */
723 jboolean X11SD_CachedXImageFits(jint width, jint height, jint maxWidth,
724 jint maxHeight, jint depth, jboolean readBits)
725 {
726 /* we assume here that the cached image exists */
727 jint imgWidth = cachedXImage->width;
728 jint imgHeight = cachedXImage->height;
729
730 if (imgWidth < width || imgHeight < height || depth != cachedXImage->depth) {
731 /* doesn't fit if any of the cached image dimensions is smaller
732 or the depths are different */
733 return JNI_FALSE;
734 }
735
736 if (!readBits) {
737 /* Not reading from this image, so any image at least of the
738 size requested will do */
739 return JNI_TRUE;
740 }
741
742 if ((imgWidth < width + 64) && (imgHeight < height + 64)
743 && imgWidth <= maxWidth && imgHeight <= maxHeight)
744 {
745 /* Cached image's width/height shouldn't be more than 64 pixels
746 * larger than requested, because the region in XShmGetImage
747 * can't be specified and we don't want to read too much.
748 * Furthermore it has to be smaller than maxWidth/Height
749 * so drawables are not read out of bounds.
750 */
751 return JNI_TRUE;
752 }
753
754 return JNI_FALSE;
755 }
756 #endif /* MITSHM */
757
758 jint X11SD_InitWindow(JNIEnv *env, X11SDOps *xsdo)
759 {
760 if (xsdo->isPixmap == JNI_TRUE) {
761 return SD_FAILURE;
762 }
763 xsdo->cData = xsdo->configData->color_data;
764
765 return SD_SUCCESS;
766 }
767
768 static jint X11SD_Lock(JNIEnv *env,
769 SurfaceDataOps *ops,
770 SurfaceDataRasInfo *pRasInfo,
771 jint lockflags)
772 {
773 X11SDOps *xsdo = (X11SDOps *) ops;
774 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
775 int ret = SD_SUCCESS;
776
777 AWT_LOCK();
778
779 if (xsdo->invalid) {
780 AWT_UNLOCK();
781 SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
782 return SD_FAILURE;
783 }
784 xsdo->cData = xsdo->configData->color_data;
785 if (xsdo->drawable == 0 && X11SD_InitWindow(env, xsdo) == SD_FAILURE) {
786 AWT_UNLOCK();
787 return SD_FAILURE;
788 }
789 if ((lockflags & SD_LOCK_LUT) != 0 &&
790 (xsdo->cData == NULL ||
791 xsdo->cData->awt_icmLUT == NULL))
792 {
793 AWT_UNLOCK();
794 JNU_ThrowNullPointerException(env, "colormap lookup table");
795 return SD_FAILURE;
796 }
797 if ((lockflags & SD_LOCK_INVCOLOR) != 0 &&
798 (xsdo->cData == NULL ||
799 xsdo->cData->img_clr_tbl == NULL ||
800 xsdo->cData->img_oda_red == NULL ||
801 xsdo->cData->img_oda_green == NULL ||
802 xsdo->cData->img_oda_blue == NULL))
803 {
804 AWT_UNLOCK();
805 JNU_ThrowNullPointerException(env, "inverse colormap lookup table");
806 return SD_FAILURE;
807 }
808 if ((lockflags & SD_LOCK_INVGRAY) != 0 &&
809 (xsdo->cData == NULL ||
810 xsdo->cData->pGrayInverseLutData == NULL))
811 {
812 AWT_UNLOCK();
813 JNU_ThrowNullPointerException(env, "inverse gray lookup table");
814 return SD_FAILURE;
815 }
816 if (xsdo->dgaAvailable && (lockflags & (SD_LOCK_RD_WR))) {
817 int dgaret;
818
819 dgaret = (*pJDgaInfo->pGetLock)(env, awt_display, &xsdo->dgaDev,
820 xsdo->drawable, &xsdo->surfInfo,
821 pRasInfo->bounds.x1,
822 pRasInfo->bounds.y1,
823 pRasInfo->bounds.x2,
824 pRasInfo->bounds.y2);
825 if (dgaret == JDGA_SUCCESS) {
826 int wx = xsdo->surfInfo.window.lox;
827 int wy = xsdo->surfInfo.window.loy;
828 pRasInfo->bounds.x1 = xsdo->surfInfo.visible.lox - wx;
829 pRasInfo->bounds.y1 = xsdo->surfInfo.visible.loy - wy;
830 pRasInfo->bounds.x2 = xsdo->surfInfo.visible.hix - wx;
831 pRasInfo->bounds.y2 = xsdo->surfInfo.visible.hiy - wy;
832 xpriv->lockType = X11SD_LOCK_BY_DGA;
833 xpriv->lockFlags = lockflags;
834 return SD_SUCCESS;
835 } else if (dgaret == JDGA_UNAVAILABLE) {
836 xsdo->dgaAvailable = JNI_FALSE;
837 }
838 }
839 if (lockflags & SD_LOCK_RD_WR) {
840 if (lockflags & SD_LOCK_FASTEST) {
841 ret = SD_SLOWLOCK;
842 }
843 xpriv->lockType = X11SD_LOCK_BY_XIMAGE;
844 if (xsdo->isPixmap) {
845 #ifdef MITSHM
846 if (xsdo->shmPMData.usingShmPixmap) {
847 xpriv->lockType = X11SD_LOCK_BY_SHMEM;
848 }
849 #endif /* MITSHM */
850 if (pRasInfo->bounds.x1 < 0) {
851 pRasInfo->bounds.x1 = 0;
852 }
853 if (pRasInfo->bounds.y1 < 0) {
854 pRasInfo->bounds.y1 = 0;
855 }
856 if (pRasInfo->bounds.x2 > xsdo->pmWidth) {
857 pRasInfo->bounds.x2 = xsdo->pmWidth;
858 }
859 if (pRasInfo->bounds.y2 > xsdo->pmHeight) {
860 pRasInfo->bounds.y2 = xsdo->pmHeight;
861 }
862 }
863 } else {
864 /* They didn't lock for anything - we won't give them anything */
865 xpriv->lockType = X11SD_LOCK_BY_NULL;
866 }
867 xpriv->lockFlags = lockflags;
868 xpriv->img = NULL;
869
870 return ret;
871 /* AWT_UNLOCK() called in Unlock */
872 }
873
874 static void X11SD_GetRasInfo(JNIEnv *env,
875 SurfaceDataOps *ops,
876 SurfaceDataRasInfo *pRasInfo)
877 {
878 X11SDOps *xsdo = (X11SDOps *) ops;
879 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
880 jint lockFlags = xpriv->lockFlags;
881 jint depth = xsdo->depth;
882 int mult = xsdo->configData->pixelStride;
883
884 if (xsdo->dgaAvailable &&
885 xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
886 (lockFlags & SD_LOCK_FASTEST))
887 {
888 /* Try one more time to use DGA (now with smaller bounds)... */
889 int dgaret;
890
891 dgaret = (*pJDgaInfo->pGetLock)(env, awt_display, &xsdo->dgaDev,
892 xsdo->drawable, &xsdo->surfInfo,
893 pRasInfo->bounds.x1,
894 pRasInfo->bounds.y1,
895 pRasInfo->bounds.x2,
896 pRasInfo->bounds.y2);
897 if (dgaret == JDGA_SUCCESS) {
898 int wx = xsdo->surfInfo.window.lox;
899 int wy = xsdo->surfInfo.window.loy;
900 pRasInfo->bounds.x1 = xsdo->surfInfo.visible.lox - wx;
901 pRasInfo->bounds.y1 = xsdo->surfInfo.visible.loy - wy;
902 pRasInfo->bounds.x2 = xsdo->surfInfo.visible.hix - wx;
903 pRasInfo->bounds.y2 = xsdo->surfInfo.visible.hiy - wy;
904 xpriv->lockType = X11SD_LOCK_BY_DGA;
905 } else if (dgaret == JDGA_UNAVAILABLE) {
906 xsdo->dgaAvailable = JNI_FALSE;
907 }
908 }
909
910 if (xpriv->lockType == X11SD_LOCK_BY_DGA) {
911 int scan = xsdo->surfInfo.surfaceScan;
912 int wx = xsdo->surfInfo.window.lox;
913 int wy = xsdo->surfInfo.window.loy;
914 pRasInfo->rasBase =
915 (void *)(((uintptr_t) xsdo->surfInfo.basePtr) + (scan*wy + wx) * mult);
916 pRasInfo->pixelStride = mult;
917 pRasInfo->pixelBitOffset = 0;
918 pRasInfo->scanStride = scan * mult;
919 #ifdef MITSHM
920 } else if (xpriv->lockType == X11SD_LOCK_BY_SHMEM) {
921 if (xsdo->shmPMData.xRequestSent == JNI_TRUE) {
922 /* need to sync before using shared mem pixmap
923 if any x calls were issued for this pixmap */
924 XSync(awt_display, False);
925 xsdo->shmPMData.xRequestSent = JNI_FALSE;
926 }
927 xpriv->x = pRasInfo->bounds.x1;
928 xpriv->y = pRasInfo->bounds.y1;
929 pRasInfo->rasBase = xsdo->shmPMData.shmSegInfo->shmaddr;
930 pRasInfo->pixelStride = mult;
931 pRasInfo->pixelBitOffset = 0;
932 pRasInfo->scanStride = xsdo->shmPMData.bytesPerLine;
933 #endif /* MITSHM */
934 } else if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE) {
935 int x, y, w, h;
936 x = pRasInfo->bounds.x1;
937 y = pRasInfo->bounds.y1;
938 w = pRasInfo->bounds.x2 - x;
939 h = pRasInfo->bounds.y2 - y;
940
941 xpriv->img = X11SD_GetImage(env, xsdo, &pRasInfo->bounds, lockFlags);
942 if (xpriv->img) {
943 int scan = xpriv->img->bytes_per_line;
944 xpriv->x = x;
945 xpriv->y = y;
946 pRasInfo->rasBase = xpriv->img->data - x * mult - y * scan;
947 pRasInfo->pixelStride = mult;
948 pRasInfo->pixelBitOffset = 0;
949 pRasInfo->scanStride = scan;
950 } else {
951 pRasInfo->rasBase = NULL;
952 pRasInfo->pixelStride = 0;
953 pRasInfo->pixelBitOffset = 0;
954 pRasInfo->scanStride = 0;
955 }
956 } else {
957 /* They didn't lock for anything - we won't give them anything */
958 pRasInfo->rasBase = NULL;
959 pRasInfo->pixelStride = 0;
960 pRasInfo->pixelBitOffset = 0;
961 pRasInfo->scanStride = 0;
962 }
963 if (lockFlags & SD_LOCK_LUT) {
964 pRasInfo->lutBase = (jint *) xsdo->cData->awt_icmLUT;
965 pRasInfo->lutSize = xsdo->cData->awt_numICMcolors;
966 } else {
967 pRasInfo->lutBase = NULL;
968 pRasInfo->lutSize = 0;
969 }
970 if (lockFlags & SD_LOCK_INVCOLOR) {
971 pRasInfo->invColorTable = xsdo->cData->img_clr_tbl;
972 pRasInfo->redErrTable = xsdo->cData->img_oda_red;
973 pRasInfo->grnErrTable = xsdo->cData->img_oda_green;
974 pRasInfo->bluErrTable = xsdo->cData->img_oda_blue;
975 } else {
976 pRasInfo->invColorTable = NULL;
977 pRasInfo->redErrTable = NULL;
978 pRasInfo->grnErrTable = NULL;
979 pRasInfo->bluErrTable = NULL;
980 }
981 if (lockFlags & SD_LOCK_INVGRAY) {
982 pRasInfo->invGrayTable = xsdo->cData->pGrayInverseLutData;
983 } else {
984 pRasInfo->invGrayTable = NULL;
985 }
986 }
987
988 static void X11SD_Unlock(JNIEnv *env,
989 SurfaceDataOps *ops,
990 SurfaceDataRasInfo *pRasInfo)
991 {
992 X11SDOps *xsdo = (X11SDOps *) ops;
993 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
994
995 if (xpriv->lockType == X11SD_LOCK_BY_DGA) {
996 (*pJDgaInfo->pReleaseLock)(env, xsdo->dgaDev, xsdo->drawable);
997 } else if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
998 xpriv->img != NULL)
999 {
1000 if (xpriv->lockFlags & SD_LOCK_WRITE) {
1001 int x = xpriv->x;
1002 int y = xpriv->y;
1003 int w = pRasInfo->bounds.x2 - x;
1004 int h = pRasInfo->bounds.y2 - y;
1005 Drawable drawable = xsdo->drawable;
1006 GC xgc = xsdo->cachedGC;
1007 if (xgc == NULL) {
1008 xsdo->cachedGC = xgc =
1009 XCreateGC(awt_display, drawable, 0L, NULL);
1010 }
1011
1012 if (xpriv->img->byte_order != nativeByteOrder) {
1013 /* switching bytes back in 24 and 32 bpp cases. */
1014 /* For 16 bit XLib will switch for us. */
1015 if (xsdo->depth > 16) {
1016 X11SD_SwapBytes(xsdo, xpriv->img, xsdo->depth,
1017 xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
1018 }
1019 }
1020
1021 #ifdef MITSHM
1022 if (xpriv->img->obdata != NULL) {
1023 XShmPutImage(awt_display, drawable, xgc,
1024 xpriv->img, 0, 0, x, y, w, h, False);
1025 XFlush(awt_display);
1026 } else {
1027 XPutImage(awt_display, drawable, xgc,
1028 xpriv->img, 0, 0, x, y, w, h);
1029 }
1030 if (xsdo->shmPMData.usingShmPixmap) {
1031 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1032 }
1033 #else
1034 XPutImage(awt_display, drawable, xgc,
1035 xpriv->img, 0, 0, x, y, w, h);
1036 #endif /* MITSHM */
1037
1038 (*pJDgaInfo->pXRequestSent)(env, xsdo->dgaDev, drawable);
1039 }
1040 X11SD_DisposeOrCacheXImage(xpriv->img);
1041 xpriv->img = (XImage *)NULL;
1042 }
1043 /* the background pixel is not valid anymore */
1044 if (xpriv->lockFlags & SD_LOCK_WRITE) {
1045 xsdo->isBgInitialized = JNI_FALSE;
1046 }
1047 xpriv->lockType = X11SD_LOCK_UNLOCKED;
1048 AWT_UNLOCK();
1049 }
1050
1051 static int
1052 X11SD_ClipToRoot(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
1053 X11SDOps *xsdo)
1054 {
1055 Position x1=0, y1=0, x2=0, y2=0;
1056 int tmpx, tmpy;
1057 Window tmpchild;
1058
1059 Window window = (Window)(xsdo->drawable); /* is always a Window */
1060 XWindowAttributes winAttr;
1061
1062 Status status = XGetWindowAttributes(awt_display, window, &winAttr);
1063 if (status == 0) {
1064 /* Failure, X window no longer valid. */
1065 return FALSE;
1066 }
1067 if (!XTranslateCoordinates(awt_display, window,
1068 RootWindowOfScreen(winAttr.screen),
1069 0, 0, &tmpx, &tmpy, &tmpchild)) {
1070 return FALSE;
1071 }
1072
1073 x1 = -(x1 + tmpx);
1074 y1 = -(y1 + tmpy);
1075
1076 x2 = x1 + DisplayWidth(awt_display, xsdo->configData->awt_visInfo.screen);
1077 y2 = y1 + DisplayHeight(awt_display, xsdo->configData->awt_visInfo.screen);
1078
1079 x1 = MAX(bounds->x1, x1);
1080 y1 = MAX(bounds->y1, y1);
1081 x2 = MIN(bounds->x2, x2);
1082 y2 = MIN(bounds->y2, y2);
1083 if ((x1 >= x2) || (y1 >= y2)) {
1084 return FALSE;
1085 }
1086 b->x1 = x1;
1087 b->y1 = y1;
1088 b->x2 = x2;
1089 b->y2 = y2;
1090
1091 return TRUE;
1092 }
1093
1094 /*
1095 * x1, y1, x2, y2 - our rectangle in the coord system of
1096 * the widget
1097 * px1, xy1, px2, py2 - current parent rect coords in the
1098 * same system
1099 */
1100 static int
1101 X11SD_FindClip(SurfaceDataBounds *b, SurfaceDataBounds *bounds, X11SDOps *xsdo)
1102 {
1103 return TRUE;
1104 }
1105
1106 static void
1107 X11SD_SwapBytes(X11SDOps *xsdo, XImage * img, int depth, int bpp) {
1108 int lengthInBytes = img->height * img->bytes_per_line;
1109 int i;
1110
1111 switch (depth) {
1112 case 12:
1113 case 15:
1114 case 16:
1115 {
1116 /* AB -> BA */
1117 unsigned short *d = (unsigned short *)img->data;
1118 unsigned short t;
1119 for (i = 0; i < lengthInBytes/2; i++) {
1120 t = *d;
1121 *d++ = (t >> 8) | (t << 8);
1122 }
1123 img->byte_order = nativeByteOrder;
1124 img->bitmap_bit_order = nativeByteOrder;
1125 break;
1126 }
1127 case 24:
1128 {
1129 /* ABC -> CBA */
1130 if (bpp == 24) {
1131 // 4517321: Only swap if we have a "real" ThreeByteBgr
1132 // visual (denoted by a red_mask of 0xff). Due to ambiguity
1133 // in the X11 spec, it appears that the swap is not required
1134 // on Linux configurations that use 24 bits per pixel (denoted
1135 // by a red_mask of 0xff0000).
1136 if (xsdo->configData->awt_visInfo.red_mask == 0xff) {
1137 int scan = img->bytes_per_line;
1138 unsigned char *d = (unsigned char *) img->data;
1139 unsigned char *d1;
1140 unsigned int t;
1141 int j;
1142
1143 for (i = 0; i < img->height; i++, d += scan) {
1144 d1 = d;
1145 for (j = 0; j < img->width; j++, d1 += 3) {
1146 /* not obvious opt from XLib src */
1147 t = d1[0]; d1[0] = d1[2]; d1[2] = t;
1148 }
1149 }
1150 }
1151 break;
1152 }
1153 }
1154 /* FALL THROUGH for 32-bit case */
1155 case 32:
1156 {
1157 /* ABCD -> DCBA */
1158 unsigned int *d = (unsigned int *) img->data;
1159 unsigned int t;
1160 for (i = 0; i < lengthInBytes/4; i++) {
1161 t = *d;
1162 *d++ = ((t >> 24) |
1163 ((t >> 8) & 0xff00) |
1164 ((t & 0xff00) << 8) |
1165 (t << 24));
1166 }
1167 break;
1168 }
1169 }
1170 }
1171
1172 static XImage * X11SD_GetImage(JNIEnv *env, X11SDOps *xsdo,
1173 SurfaceDataBounds *bounds,
1174 jint lockFlags)
1175 {
1176 int x, y, w, h, maxWidth, maxHeight;
1177 int scan;
1178 XImage * img = NULL;
1179 Drawable drawable;
1180 int depth = xsdo->depth;
1181 int mult = xsdo->configData->pixelStride;
1182 int pad = (mult == 3) ? 32 : mult * 8; // pad must be 8, 16, or 32
1183 jboolean readBits = lockFlags & SD_LOCK_NEED_PIXELS;
1184
1185 x = bounds->x1;
1186 y = bounds->y1;
1187 w = bounds->x2 - x;
1188 h = bounds->y2 - y;
1189
1190 #ifdef MITSHM
1191 if (useMitShmExt == CAN_USE_MITSHM) {
1192 if (xsdo->isPixmap) {
1193 if (readBits) {
1194 X11SD_PuntPixmap(xsdo, w, h);
1195 }
1196 maxWidth = xsdo->pmWidth;
1197 maxHeight = xsdo->pmHeight;
1198 } else {
1199 XWindowAttributes winAttr;
1200 if (XGetWindowAttributes(awt_display,
1201 (Window) xsdo->drawable, &winAttr) != 0) {
1202 maxWidth = winAttr.width;
1203 maxHeight = winAttr.height;
1204 } else {
1205 /* XGWA failed which isn't a good thing. Defaulting to using
1206 * x,y means that after the subtraction of these we will use
1207 * w=0, h=0 which is a reasonable default on such a failure.
1208 */
1209 maxWidth = x;
1210 maxHeight = y;
1211 }
1212 }
1213 maxWidth -= x;
1214 maxHeight -= y;
1215
1216 img = X11SD_GetSharedImage(xsdo, w, h, maxWidth, maxHeight, readBits);
1217 }
1218 #endif /* MITSHM */
1219 drawable = xsdo->drawable;
1220
1221 if (readBits) {
1222 #ifdef MITSHM
1223 if (img != NULL) {
1224 if (!XShmGetImage(awt_display, drawable, img, x, y, -1)) {
1225 X11SD_DisposeOrCacheXImage(img);
1226 img = NULL;
1227 }
1228 }
1229 if (img == NULL) {
1230 img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
1231 if (img != NULL) {
1232 img->obdata = NULL;
1233 }
1234 }
1235 #else
1236 img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
1237 #endif /* MITSHM */
1238 if (img == NULL) {
1239 SurfaceDataBounds temp;
1240 img = XCreateImage(awt_display,
1241 xsdo->configData->awt_visInfo.visual,
1242 depth, ZPixmap, 0, NULL, w, h, pad, 0);
1243 if (img == NULL) {
1244 return NULL;
1245 }
1246
1247 scan = img->bytes_per_line;
1248 img->data = malloc(h * scan);
1249 if (img->data == NULL) {
1250 XFree(img);
1251 return NULL;
1252 }
1253
1254 if (xsdo->isPixmap == JNI_FALSE &&
1255 X11SD_ClipToRoot(&temp, bounds, xsdo)) {
1256
1257 XImage * temp_image;
1258 temp_image = XGetImage(awt_display, drawable,
1259 temp.x1, temp.y1,
1260 temp.x2 - temp.x1,
1261 temp.y2 - temp.y1,
1262 -1, ZPixmap);
1263 if (temp_image == NULL) {
1264 XGrabServer(awt_display);
1265 if (X11SD_FindClip(&temp, bounds, xsdo)) {
1266 temp_image =
1267 XGetImage(awt_display, drawable,
1268 temp.x1, temp.y1,
1269 temp.x2 - temp.x1,
1270 temp.y2 - temp.y1,
1271 -1, ZPixmap);
1272 }
1273 XUngrabServer(awt_display);
1274 /* Workaround for bug 5039226 */
1275 XSync(awt_display, False);
1276 }
1277 if (temp_image != NULL) {
1278 int temp_scan, bytes_to_copy;
1279 char * img_addr, * temp_addr;
1280 int i;
1281
1282 img_addr = img->data +
1283 (temp.y1 - y) * scan + (temp.x1 - x) * mult;
1284 temp_scan = temp_image->bytes_per_line;
1285 temp_addr = temp_image->data;
1286 bytes_to_copy = (temp.x2 - temp.x1) * mult;
1287 for (i = temp.y1; i < temp.y2; i++) {
1288 memcpy(img_addr, temp_addr, bytes_to_copy);
1289 img_addr += scan;
1290 temp_addr += temp_scan;
1291 }
1292 XDestroyImage(temp_image);
1293 }
1294 }
1295 img->obdata = NULL;
1296 }
1297 if (depth > 8 && img->byte_order != nativeByteOrder) {
1298 X11SD_SwapBytes(xsdo, img, depth,
1299 xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
1300 }
1301 } else {
1302 /*
1303 * REMIND: This might be better to move to the Lock function
1304 * to avoid lengthy I/O pauses inside what may be a critical
1305 * section. This will be more critical when SD_LOCK_READ is
1306 * implemented. Another solution is to cache the pixels
1307 * to avoid reading for every operation.
1308 */
1309 if (img == NULL) {
1310 img = XCreateImage(awt_display,
1311 xsdo->configData->awt_visInfo.visual,
1312 depth, ZPixmap, 0, NULL, w, h, pad, 0);
1313 if (img == NULL) {
1314 return NULL;
1315 }
1316
1317 img->data = malloc(h * img->bytes_per_line);
1318 if (img->data == NULL) {
1319 XFree(img);
1320 return NULL;
1321 }
1322
1323 img->obdata = NULL;
1324
1325 if (img->byte_order != nativeByteOrder &&
1326 (depth == 15 || depth == 16 || depth == 12)) {
1327 /* bytes will be swapped by XLib. */
1328 img->byte_order = nativeByteOrder;
1329 img->bitmap_bit_order = nativeByteOrder;
1330 }
1331 }
1332 }
1333 return img;
1334 }
1335
1336 void X11SD_DisposeOrCacheXImage(XImage * image) {
1337 /* REMIND: might want to check if the new image worth caching. */
1338 /* Cache only shared images. Passed image is assumed to be non-null. */
1339 if (image->obdata != NULL) {
1340 if (cachedXImage != NULL) {
1341 X11SD_DisposeXImage(cachedXImage);
1342 }
1343 cachedXImage = image;
1344 } else {
1345 X11SD_DisposeXImage(image);
1346 }
1347 }
1348
1349 void X11SD_DisposeXImage(XImage * image) {
1350 if (image != NULL) {
1351 #ifdef MITSHM
1352 if (image->obdata != NULL) {
1353 X11SD_DropSharedSegment((XShmSegmentInfo*)image->obdata);
1354 image->obdata = NULL;
1355 }
1356 #endif /* MITSHM */
1357 XDestroyImage(image);
1358 }
1359 }
1360
1361 static JDgaStatus
1362 GetLockStub(JNIEnv *env, Display *display, void **dgaDev,
1363 Drawable d, JDgaSurfaceInfo *pSurface,
1364 jint lox, jint loy, jint hix, jint hiy)
1365 {
1366 return JDGA_UNAVAILABLE;
1367 }
1368
1369 static JDgaStatus
1370 ReleaseLockStub(JNIEnv *env, void *dgaDev, Drawable d)
1371 {
1372 return JDGA_FAILED;
1373 }
1374
1375 static void
1376 XRequestSentStub(JNIEnv *env, void *dgaDev, Drawable d)
1377 {
1378 }
1379
1380 static void
1381 LibDisposeStub(JNIEnv *env)
1382 {
1383 }
1384
1385 static JDgaLibInfo DgaLibInfoStub = {
1386 NULL,
1387 GetLockStub,
1388 ReleaseLockStub,
1389 XRequestSentStub,
1390 LibDisposeStub,
1391 };
1392
1393 void X11SD_LibDispose(JNIEnv *env) {
1394 AWT_LOCK();
1395 if (pJDgaInfo != NULL) {
1396 pJDgaInfo->pLibDispose(env);
1397 pJDgaInfo = &DgaLibInfoStub;
1398 }
1399 AWT_UNLOCK();
1400 }
1401
1402 void
1403 X11SD_DirectRenderNotify(JNIEnv *env, X11SDOps *xsdo)
1404 {
1405 #ifdef MITSHM
1406 if (xsdo->shmPMData.usingShmPixmap) {
1407 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1408 }
1409 #endif /* MITSHM */
1410 (*pJDgaInfo->pXRequestSent)(env, xsdo->dgaDev, xsdo->drawable);
1411 awt_output_flush();
1412 }
1413
1414 /*
1415 * Sets transparent pixels in the pixmap to
1416 * the specified solid background color and returns it.
1417 * Doesn't update source pixmap unless the color of the
1418 * transparent pixels is different from the specified color.
1419 *
1420 * Note: The AWT lock must be held by the current thread
1421 * while calling into this method.
1422 */
1423 static Drawable
1424 X11SD_GetPixmapWithBg(JNIEnv *env, X11SDOps *xsdo, jint pixel)
1425 {
1426 /* assert AWT_CHECK_HAVE_LOCK(); */
1427
1428 if (xsdo->invalid) {
1429 AWT_UNLOCK();
1430 SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
1431 return 0;
1432 }
1433
1434 /* the image doesn't have transparency, just return it */
1435 if (xsdo->bitmask == 0) {
1436 /* don't need to unlock here, the caller will unlock through
1437 the release call */
1438 return xsdo->drawable;
1439 }
1440
1441 /* Check if current color of the transparent pixels is different
1442 from the specified one */
1443 if (xsdo->isBgInitialized == JNI_FALSE || xsdo->bgPixel != pixel) {
1444 GC srcGC;
1445 GC bmGC;
1446
1447 if (xsdo->drawable == 0) {
1448 AWT_UNLOCK();
1449 return 0;
1450 }
1451
1452 bmGC = XCreateGC(awt_display, xsdo->bitmask, 0, NULL);
1453 if (bmGC == NULL) {
1454 AWT_UNLOCK();
1455 return 0;
1456 }
1457
1458 /* invert the bitmask */
1459 XSetFunction(awt_display, bmGC, GXxor);
1460 XSetForeground(awt_display, bmGC, 1);
1461 XFillRectangle(awt_display, xsdo->bitmask, bmGC,
1462 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1463
1464 srcGC = XCreateGC(awt_display, xsdo->drawable, 0L, NULL);
1465 if (srcGC == NULL) {
1466 XFreeGC(awt_display, bmGC);
1467 AWT_UNLOCK();
1468 return 0;
1469 }
1470
1471 /* set transparent pixels in the source pm to the bg color */
1472 XSetClipMask(awt_display, srcGC, xsdo->bitmask);
1473 XSetForeground(awt_display, srcGC, pixel);
1474 XFillRectangle(awt_display, xsdo->drawable, srcGC,
1475 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1476
1477 /* invert the mask back */
1478 XFillRectangle(awt_display, xsdo->bitmask, bmGC,
1479 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1480
1481 XFreeGC(awt_display, bmGC);
1482 XFreeGC(awt_display, srcGC);
1483 xsdo->bgPixel = pixel;
1484 xsdo->isBgInitialized = JNI_TRUE;
1485 }
1486
1487 return xsdo->drawable;
1488 }
1489
1490 static void
1491 X11SD_ReleasePixmapWithBg(JNIEnv *env, X11SDOps *xsdo)
1492 {
1493 #ifdef MITSHM
1494 if (xsdo->shmPMData.usingShmPixmap) {
1495 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1496 }
1497 #endif /* MITSHM */
1498 }
1499
1500 #endif /* !HEADLESS */
1501
1502 /*
1503 * Class: sun_java2d_x11_X11SurfaceData
1504 * Method: XCreateGC
1505 * Signature: (I)J
1506 */
1507 JNIEXPORT jlong JNICALL
1508 Java_sun_java2d_x11_XSurfaceData_XCreateGC
1509 (JNIEnv *env, jclass xsd, jlong pXSData)
1510 {
1511 jlong ret;
1512
1513 #ifndef HEADLESS
1514 X11SDOps *xsdo;
1515
1516 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XCreateGC");
1517
1518 xsdo = (X11SDOps *) pXSData;
1519 if (xsdo == NULL) {
1520 return 0L;
1521 }
1522
1523 xsdo->javaGC = XCreateGC(awt_display, xsdo->drawable, 0, NULL);
1524 ret = (jlong) xsdo->javaGC;
1525 #else /* !HEADLESS */
1526 ret = 0L;
1527 #endif /* !HEADLESS */
1528
1529 return ret;
1530 }
1531
1532 /*
1533 * Class: sun_java2d_x11_X11SurfaceData
1534 * Method: XResetClip
1535 * Signature: (JIIIILsun/java2d/pipe/Region;)V
1536 */
1537 JNIEXPORT void JNICALL
1538 Java_sun_java2d_x11_XSurfaceData_XResetClip
1539 (JNIEnv *env, jclass xsd, jlong xgc)
1540 {
1541 #ifndef HEADLESS
1542 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XResetClip");
1543 XSetClipMask(awt_display, (GC) xgc, None);
1544 #endif /* !HEADLESS */
1545 }
1546
1547 /*
1548 * Class: sun_java2d_x11_X11SurfaceData
1549 * Method: XSetClip
1550 * Signature: (JIIIILsun/java2d/pipe/Region;)V
1551 */
1552 JNIEXPORT void JNICALL
1553 Java_sun_java2d_x11_XSurfaceData_XSetClip
1554 (JNIEnv *env, jclass xsd, jlong xgc,
1555 jint x1, jint y1, jint x2, jint y2,
1556 jobject complexclip)
1557 {
1558 #ifndef HEADLESS
1559 int numrects;
1560 XRectangle rects[256];
1561 XRectangle *pRect = rects;
1562
1563 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetClip");
1564
1565 numrects = RegionToYXBandedRectangles(env,
1566 x1, y1, x2, y2, complexclip,
1567 &pRect, 256);
1568
1569 XSetClipRectangles(awt_display, (GC) xgc, 0, 0, pRect, numrects, YXBanded);
1570
1571 if (pRect != rects) {
1572 free(pRect);
1573 }
1574 #endif /* !HEADLESS */
1575 }
1576
1577 /*
1578 * Class: sun_java2d_x11_X11SurfaceData
1579 * Method: XSetCopyMode
1580 * Signature: (J)V
1581 */
1582 JNIEXPORT void JNICALL
1583 Java_sun_java2d_x11_X11SurfaceData_XSetCopyMode
1584 (JNIEnv *env, jclass xsd, jlong xgc)
1585 {
1586 #ifndef HEADLESS
1587 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetCopyMode");
1588 XSetFunction(awt_display, (GC) xgc, GXcopy);
1589 #endif /* !HEADLESS */
1590 }
1591
1592 /*
1593 * Class: sun_java2d_x11_X11SurfaceData
1594 * Method: XSetXorMode
1595 * Signature: (J)V
1596 */
1597 JNIEXPORT void JNICALL
1598 Java_sun_java2d_x11_X11SurfaceData_XSetXorMode
1599 (JNIEnv *env, jclass xr, jlong xgc)
1600 {
1601 #ifndef HEADLESS
1602 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetXorMode");
1603 XSetFunction(awt_display, (GC) xgc, GXxor);
1604 #endif /* !HEADLESS */
1605 }
1606
1607 /*
1608 * Class: sun_java2d_x11_X11SurfaceData
1609 * Method: XSetForeground
1610 * Signature: (JI)V
1611 */
1612 JNIEXPORT void JNICALL
1613 Java_sun_java2d_x11_X11SurfaceData_XSetForeground
1614 (JNIEnv *env, jclass xsd, jlong xgc, jint pixel)
1615 {
1616 #ifndef HEADLESS
1617 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetForeground");
1618 XSetForeground(awt_display, (GC) xgc, pixel);
1619 #endif /* !HEADLESS */
1620 }
1621
1622 /*
1623 * Class: sun_java2d_x11_X11SurfaceData
1624 * Method: XSetGraphicsExposures
1625 * Signature: (JZ)V
1626 */
1627 JNIEXPORT void JNICALL
1628 Java_sun_java2d_x11_XSurfaceData_XSetGraphicsExposures
1629 (JNIEnv *env, jclass xsd, jlong xgc, jboolean needExposures)
1630 {
1631 #ifndef HEADLESS
1632 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetGraphicsExposures");
1633 XSetGraphicsExposures(awt_display, (GC) xgc, needExposures ? True : False);
1634 #endif /* !HEADLESS */
1635 }