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 int mitShmPermissionMask = MITSHM_PERM_OWNER;
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 char * permission = getenv("J2D_MITSHM_PERMISSION");
123 if (permission != NULL) {
124 if (strcmp(permission, "common") == 0) {
125 mitShmPermissionMask = MITSHM_PERM_COMMON;
126 }
127 }
128
129 TryInitMITShm(env, &useMitShmExt, &useMitShmPixmaps);
130
131 if(allowShmPixmaps) {
132 useMitShmPixmaps = (useMitShmPixmaps == CAN_USE_MITSHM);
133 force = getenv("J2D_PIXMAPS");
134 if (force != NULL) {
135 if (useMitShmPixmaps && (strcmp(force, "shared") == 0)) {
136 forceSharedPixmaps = JNI_TRUE;
137 } else if (strcmp(force, "server") == 0) {
138 useMitShmPixmaps = JNI_FALSE;
139 }
140 }
141 }else {
142 useMitShmPixmaps = JNI_FALSE;
143 }
144 }
145 #endif /* MITSHM */
146
147 #endif /* !HEADLESS */
148
149 return JNI_TRUE;
150 }
151
152
153 /*
154 * Class: sun_java2d_x11_X11SurfaceData
155 * Method: initIDs
156 * Signature: (Ljava/lang/Class;Z)V
157 */
158 JNIEXPORT void JNICALL
159 Java_sun_java2d_x11_X11SurfaceData_initIDs(JNIEnv *env, jclass xsd,
160 jclass XORComp, jboolean tryDGA)
161 {
162 #ifndef HEADLESS
163 if(XShared_initIDs(env, JNI_TRUE))
164 {
165 void *lib = 0;
166
167 xorCompClass = (*env)->NewGlobalRef(env, XORComp);
168
169 if (tryDGA && (getenv("NO_J2D_DGA") == NULL)) {
170 /* we use RTLD_NOW because of bug 4032715 */
171 lib = dlopen(JNI_LIB_NAME("sunwjdga"), RTLD_NOW);
172 }
173
174 if (lib != NULL) {
175 JDgaStatus ret = JDGA_FAILED;
176 void *sym = dlsym(lib, "JDgaLibInit");
177 if (sym != NULL) {
178 theJDgaInfo.display = awt_display;
179 AWT_LOCK();
180 ret = (*(JDgaLibInitFunc *)sym)(env, &theJDgaInfo);
181 AWT_UNLOCK();
182 }
183 if (ret == JDGA_SUCCESS) {
184 pJDgaInfo = &theJDgaInfo;
185 dgaAvailable = JNI_TRUE;
186 useDGAWithPixmaps = (getenv("USE_DGA_PIXMAPS") != NULL);
187 } else {
188 dlclose(lib);
189 lib = NULL;
190 }
191 }
192 }
193 #endif /* !HEADLESS */
194 }
195
196 /*
197 * Class: sun_java2d_x11_X11SurfaceData
198 * Method: isDrawableValid
199 * Signature: ()Z
200 */
201 JNIEXPORT jboolean JNICALL
202 Java_sun_java2d_x11_XSurfaceData_isDrawableValid(JNIEnv *env, jobject this)
203 {
204 jboolean ret = JNI_FALSE;
205
206 #ifndef HEADLESS
207 X11SDOps *xsdo = X11SurfaceData_GetOps(env, this);
208
209 AWT_LOCK();
210 if (xsdo->drawable != 0 || X11SD_InitWindow(env, xsdo) == SD_SUCCESS) {
211 ret = JNI_TRUE;
212 }
213 AWT_UNLOCK();
214 #endif /* !HEADLESS */
215
216 return ret;
217 }
218
219 /*
220 * Class: sun_java2d_x11_X11SurfaceData
221 * Method: isShmPMAvailable
222 * Signature: ()Z
223 */
224 JNIEXPORT jboolean JNICALL
225 Java_sun_java2d_x11_X11SurfaceData_isShmPMAvailable(JNIEnv *env, jobject this)
226 {
227 #if defined(HEADLESS) || !defined(MITSHM)
228 return JNI_FALSE;
229 #else
230 return useMitShmPixmaps;
231 #endif /* HEADLESS, MITSHM */
232 }
233
234 /*
235 * Class: sun_java2d_x11_X11SurfaceData
236 * Method: isDgaAvailable
237 * Signature: ()Z
238 */
239 JNIEXPORT jboolean JNICALL
240 Java_sun_java2d_x11_X11SurfaceData_isDgaAvailable(JNIEnv *env, jobject this)
241 {
242 #if defined(HEADLESS) || defined(__linux__)
243 return JNI_FALSE;
244 #else
245 return dgaAvailable;
246 #endif /* HEADLESS */
247 }
248
249 /*
250 * Class: sun_java2d_x11_X11SurfaceData
251 * Method: initOps
252 * Signature: (Ljava/lang/Object;I)V
253 */
254 JNIEXPORT void JNICALL
255 Java_sun_java2d_x11_XSurfaceData_initOps(JNIEnv *env, jobject xsd,
256 jobject peer,
257 jobject graphicsConfig, jint depth)
258 {
259 #ifndef HEADLESS
260 X11SDOps *xsdo = (X11SDOps*)SurfaceData_InitOps(env, xsd, sizeof(X11SDOps));
261 if (xsdo == NULL) {
262 JNU_ThrowOutOfMemoryError(env, "Initialization of SurfaceData failed.");
263 return;
264 }
265 xsdo->sdOps.Lock = X11SD_Lock;
266 xsdo->sdOps.GetRasInfo = X11SD_GetRasInfo;
267 xsdo->sdOps.Unlock = X11SD_Unlock;
268 xsdo->sdOps.Dispose = X11SD_Dispose;
269 xsdo->GetPixmapWithBg = X11SD_GetPixmapWithBg;
270 xsdo->ReleasePixmapWithBg = X11SD_ReleasePixmapWithBg;
271 xsdo->widget = NULL;
272 if (peer != NULL) {
273 xsdo->drawable = JNU_CallMethodByName(env, NULL, peer, "getWindow", "()J").j;
274 } else {
275 xsdo->drawable = 0;
276 }
277 xsdo->depth = depth;
278 xsdo->dgaAvailable = dgaAvailable;
279 xsdo->isPixmap = JNI_FALSE;
280 xsdo->bitmask = 0;
281 xsdo->bgPixel = 0;
282 xsdo->isBgInitialized = JNI_FALSE;
283 #ifdef MITSHM
284 xsdo->shmPMData.shmSegInfo = NULL;
285 xsdo->shmPMData.xRequestSent = JNI_FALSE;
286 xsdo->shmPMData.pmSize = 0;
287 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
288 xsdo->shmPMData.pixmap = 0;
289 xsdo->shmPMData.shmPixmap = 0;
290 xsdo->shmPMData.numBltsSinceRead = 0;
291 xsdo->shmPMData.pixelsReadSinceBlt = 0;
292 xsdo->shmPMData.numBltsThreshold = 2;
293 #endif /* MITSHM */
294
295 xsdo->configData = (AwtGraphicsConfigDataPtr)
296 JNU_GetLongFieldAsPtr(env,
297 graphicsConfig,
298 x11GraphicsConfigIDs.aData);
299 if (xsdo->configData == NULL) {
300 JNU_ThrowNullPointerException(env,
301 "Native GraphicsConfig data block missing");
302 return;
303 }
304 if (depth > 12) {
305 xsdo->pixelmask = (xsdo->configData->awt_visInfo.red_mask |
306 xsdo->configData->awt_visInfo.green_mask |
307 xsdo->configData->awt_visInfo.blue_mask);
308 } else if (depth == 12) {
309 xsdo->pixelmask = 0xfff;
310 } else {
311 xsdo->pixelmask = 0xff;
312 }
313
314 xsdo->xrPic = None;
315 #endif /* !HEADLESS */
316 }
317
318 /*
319 * Class: sun_java2d_x11_X11SurfaceData
320 * Method: flushNativeSurface
321 * Signature: ()V
322 */
323 JNIEXPORT void JNICALL
324 Java_sun_java2d_x11_XSurfaceData_flushNativeSurface(JNIEnv *env, jobject xsd)
325 {
326 #ifndef HEADLESS
327 SurfaceDataOps *ops = SurfaceData_GetOps(env, xsd);
328
329 if (ops != NULL) {
330 X11SD_Dispose(env, ops);
331 }
332 #endif /* !HEADLESS */
333 }
334
335
336 JNIEXPORT X11SDOps * JNICALL
337 X11SurfaceData_GetOps(JNIEnv *env, jobject sData)
338 {
339 #ifdef HEADLESS
340 return NULL;
341 #else
342 SurfaceDataOps *ops = SurfaceData_GetOps(env, sData);
343 if (ops != NULL && ops->Lock != X11SD_Lock) {
344 SurfaceData_ThrowInvalidPipeException(env, "not an X11 SurfaceData");
345 ops = NULL;
346 }
347 return (X11SDOps *) ops;
348 #endif /* !HEADLESS */
349 }
350
351 /*
352 * Method for disposing X11SD-specific data
353 */
354 static void
355 X11SD_Dispose(JNIEnv *env, SurfaceDataOps *ops)
356 {
357 #ifndef HEADLESS
358 /* ops is assumed non-null as it is checked in SurfaceData_DisposeOps */
359 X11SDOps * xsdo = (X11SDOps*)ops;
360
361 AWT_LOCK();
362
363 xsdo->invalid = JNI_TRUE;
364
365 if (xsdo->xrPic != None) {
366 XRenderFreePicture(awt_display, xsdo->xrPic);
367 xsdo->xrPic = None;
368 }
369
370 if (xsdo->isPixmap == JNI_TRUE && xsdo->drawable != 0) {
371 #ifdef MITSHM
372 if (xsdo->shmPMData.shmSegInfo != NULL) {
373 X11SD_DropSharedSegment(xsdo->shmPMData.shmSegInfo);
374 xsdo->shmPMData.shmSegInfo = NULL;
375 }
376 if (xsdo->shmPMData.pixmap) {
377 XFreePixmap(awt_display, xsdo->shmPMData.pixmap);
378 xsdo->shmPMData.pixmap = 0;
379 }
380 if (xsdo->shmPMData.shmPixmap) {
381 XFreePixmap(awt_display, xsdo->shmPMData.shmPixmap);
382 xsdo->shmPMData.shmPixmap = 0;
383 }
384 #else
385 XFreePixmap(awt_display, xsdo->drawable);
386 #endif /* MITSHM */
387 xsdo->drawable = 0;
388 }
389 if (xsdo->bitmask != 0) {
390 XFreePixmap(awt_display, xsdo->bitmask);
391 xsdo->bitmask = 0;
392 }
393 if (xsdo->javaGC != NULL) {
394 XFreeGC(awt_display, xsdo->javaGC);
395 xsdo->javaGC = NULL;
396 }
397 if (xsdo->cachedGC != NULL) {
398 XFreeGC(awt_display, xsdo->cachedGC);
399 xsdo->cachedGC = NULL;
400 }
401
402 if(xsdo->xrPic != None) {
403 XRenderFreePicture(awt_display, xsdo->xrPic);
404 }
405
406 AWT_UNLOCK();
407 #endif /* !HEADLESS */
408 }
409 /*
410 * Class: sun_java2d_x11_X11SurfaceData
411 * Method: setInvalid
412 * Signature: ()V
413 */
414 JNIEXPORT void JNICALL
415 Java_sun_java2d_x11_XSurfaceData_setInvalid(JNIEnv *env, jobject xsd)
416 {
417 #ifndef HEADLESS
418 X11SDOps *xsdo = (X11SDOps *) SurfaceData_GetOps(env, xsd);
419
420 if (xsdo != NULL) {
421 xsdo->invalid = JNI_TRUE;
422 }
423 #endif /* !HEADLESS */
424 }
425
426
427 jboolean XShared_initSurface(JNIEnv *env, X11SDOps *xsdo, jint depth, jint width, jint height, jlong drawable)
428 {
429 #ifndef HEADLESS
430
431 if (drawable != (jlong)0) {
432 /* Double-buffering */
433 xsdo->drawable = drawable;
434 xsdo->isPixmap = JNI_FALSE;
435 } else {
436 xsdo->isPixmap = JNI_TRUE;
437 /* REMIND: workaround for bug 4420220 on pgx32 boards:
438 don't use DGA with pixmaps unless USE_DGA_PIXMAPS is set.
439 */
440 xsdo->dgaAvailable = useDGAWithPixmaps;
441
442 xsdo->pmWidth = width;
443 xsdo->pmHeight = height;
444
445 #ifdef MITSHM
446 xsdo->shmPMData.pmSize = width * height * depth;
447 xsdo->shmPMData.pixelsReadThreshold = width * height / 8;
448 if (forceSharedPixmaps) {
449 AWT_LOCK();
450 xsdo->drawable = X11SD_CreateSharedPixmap(xsdo);
451 AWT_UNLOCK();
452 if (xsdo->drawable) {
453 xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
454 xsdo->shmPMData.shmPixmap = xsdo->drawable;
455 return JNI_TRUE;
456 }
457 }
458 #endif /* MITSHM */
459
460 AWT_LOCK();
461 xsdo->drawable =
462 XCreatePixmap(awt_display,
463 RootWindow(awt_display,
464 xsdo->configData->awt_visInfo.screen),
465 width, height, depth);
466 AWT_UNLOCK();
467 #ifdef MITSHM
468 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
469 xsdo->shmPMData.pixmap = xsdo->drawable;
470 #endif /* MITSHM */
471 }
472 if (xsdo->drawable == 0) {
473 JNU_ThrowOutOfMemoryError(env,
474 "Can't create offscreen surface");
475 return JNI_FALSE;
476 }
477
478 #endif /* !HEADLESS */
479 return JNI_TRUE;
480 }
481
482
483 /*
484 * Class: sun_java2d_x11_X11SurfaceData
485 * Method: initSurface
486 * Signature: ()V
487 */
488 JNIEXPORT void JNICALL
489 Java_sun_java2d_x11_X11SurfaceData_initSurface(JNIEnv *env, jclass xsd,
490 jint depth,
491 jint width, jint height,
492 jlong drawable)
493 {
494 #ifndef HEADLESS
495 X11SDOps *xsdo = X11SurfaceData_GetOps(env, xsd);
496 if (xsdo == NULL) {
497 return;
498 }
499
500 if (xsdo->configData->awt_cmap == (Colormap)NULL) {
501 awtJNI_CreateColorData(env, xsdo->configData, 1);
502 }
503 /* color_data will be initialized in awtJNI_CreateColorData for
504 8-bit visuals */
505 xsdo->cData = xsdo->configData->color_data;
506
507 XShared_initSurface(env, xsdo, depth, width, height, drawable);
508 xsdo->xrPic = NULL;
509 #endif /* !HEADLESS */
510 }
511
512 #ifndef HEADLESS
513
514 #ifdef MITSHM
515
516 void X11SD_DropSharedSegment(XShmSegmentInfo *shminfo)
517 {
518 if (shminfo != NULL) {
519 XShmDetach(awt_display, shminfo);
520 shmdt(shminfo->shmaddr);
521 /* REMIND: we don't need shmctl(shminfo->shmid, IPC_RMID, 0); here. */
522 /* Check X11SD_CreateSharedImage() for the explanation */
523 }
524 }
525
526 XImage* X11SD_CreateSharedImage(X11SDOps *xsdo,
527 jint width, jint height)
528 {
529 XImage *img = NULL;
530 XShmSegmentInfo *shminfo;
531 JNIEnv* env;
532 jboolean xShmAttachResult;
533
534 shminfo = malloc(sizeof(XShmSegmentInfo));
535 if (shminfo == NULL) {
536 return NULL;
537 }
538 memset(shminfo, 0, sizeof(XShmSegmentInfo));
539
540 img = XShmCreateImage(awt_display, xsdo->configData->awt_visInfo.visual,
541 xsdo->depth, ZPixmap, NULL, shminfo,
542 width, height);
543 if (img == NULL) {
544 free((void *)shminfo);
545 return NULL;
546 }
547 shminfo->shmid =
548 shmget(IPC_PRIVATE, height * img->bytes_per_line,
549 IPC_CREAT|mitShmPermissionMask);
550 if (shminfo->shmid < 0) {
551 J2dRlsTraceLn1(J2D_TRACE_ERROR,
552 "X11SD_SetupSharedSegment shmget has failed: %s",
553 strerror(errno));
554 free((void *)shminfo);
555 XDestroyImage(img);
556 return NULL;
557 }
558
559 shminfo->shmaddr = (char *) shmat(shminfo->shmid, 0, 0);
560 if (shminfo->shmaddr == ((char *) -1)) {
561 shmctl(shminfo->shmid, IPC_RMID, 0);
562 J2dRlsTraceLn1(J2D_TRACE_ERROR,
563 "X11SD_SetupSharedSegment shmat has failed: %s",
564 strerror(errno));
565 free((void *)shminfo);
566 XDestroyImage(img);
567 return NULL;
568 }
569
570 shminfo->readOnly = False;
571
572 env = (JNIEnv*)JNU_GetEnv(jvm, JNI_VERSION_1_2);
573 xShmAttachResult = TryXShmAttach(env, awt_display, shminfo);
574
575 /*
576 * Once the XSync round trip has finished then we
577 * can get rid of the id so that this segment does not stick
578 * around after we go away, holding system resources.
579 */
580 shmctl(shminfo->shmid, IPC_RMID, 0);
581
582 if (xShmAttachResult == JNI_FALSE) {
583 J2dRlsTraceLn1(J2D_TRACE_ERROR,
584 "X11SD_SetupSharedSegment XShmAttach has failed: %s",
585 strerror(errno));
586 shmdt(shminfo->shmaddr);
587 free((void *)shminfo);
588 XDestroyImage(img);
589 return NULL;
590 }
591
592 img->data = shminfo->shmaddr;
593 img->obdata = (char *)shminfo;
594
595 return img;
596 }
597
598 XImage* X11SD_GetSharedImage(X11SDOps *xsdo, jint width, jint height,
599 jint maxWidth, jint maxHeight, jboolean readBits)
600 {
601 XImage * retImage = NULL;
602 if (cachedXImage != NULL &&
603 X11SD_CachedXImageFits(width, height, maxWidth, maxHeight,
604 xsdo->depth, readBits)) {
605 /* sync so previous data gets flushed */
606 XSync(awt_display, False);
607 retImage = cachedXImage;
608 cachedXImage = (XImage *)NULL;
609 } else if (width * height * xsdo->depth > 0x10000) {
610 retImage = X11SD_CreateSharedImage(xsdo, width, height);
611 }
612 return retImage;
613 }
614
615 Drawable X11SD_CreateSharedPixmap(X11SDOps *xsdo)
616 {
617 XShmSegmentInfo *shminfo;
618 XImage *img = NULL;
619 Drawable pixmap;
620 int scan;
621 int width = xsdo->pmWidth;
622 int height = xsdo->pmHeight;
623
624 if (xsdo->shmPMData.pmSize < 0x10000) {
625 /* only use shared mem pixmaps for relatively big images */
626 return 0;
627 }
628
629 /* need to create shared(!) image to get bytes_per_line */
630 img = X11SD_CreateSharedImage(xsdo, width, height);
631 if (img == NULL) {
632 return 0;
633 }
634 scan = img->bytes_per_line;
635 shminfo = (XShmSegmentInfo*)img->obdata;
636 XFree(img);
637
638 pixmap =
639 XShmCreatePixmap(awt_display,
640 RootWindow(awt_display,
641 xsdo->configData->awt_visInfo.screen),
642 shminfo->shmaddr, shminfo,
643 width, height, xsdo->depth);
644 if (pixmap == 0) {
645 X11SD_DropSharedSegment(shminfo);
646 return 0;
647 }
648
649 xsdo->shmPMData.shmSegInfo = shminfo;
650 xsdo->shmPMData.bytesPerLine = scan;
651 return pixmap;
652 }
653
654 void X11SD_PuntPixmap(X11SDOps *xsdo, jint width, jint height)
655 {
656
657 if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
658 return;
659 }
660
661 /* we wouldn't be here if it's a shared pixmap, so no check
662 * for !usingShmPixmap.
663 */
664
665 xsdo->shmPMData.numBltsSinceRead = 0;
666
667 xsdo->shmPMData.pixelsReadSinceBlt += width * height;
668 if (xsdo->shmPMData.pixelsReadSinceBlt >
669 xsdo->shmPMData.pixelsReadThreshold) {
670 if (!xsdo->shmPMData.shmPixmap) {
671 xsdo->shmPMData.shmPixmap =
672 X11SD_CreateSharedPixmap(xsdo);
673 }
674 if (xsdo->shmPMData.shmPixmap) {
675 GC xgc = XCreateGC(awt_display, xsdo->shmPMData.shmPixmap, 0L, NULL);
676 if (xgc != NULL) {
677 xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
678 xsdo->drawable = xsdo->shmPMData.shmPixmap;
679 XCopyArea(awt_display,
680 xsdo->shmPMData.pixmap, xsdo->drawable, xgc,
681 0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
682 XSync(awt_display, False);
683 xsdo->shmPMData.xRequestSent = JNI_FALSE;
684 XFreeGC(awt_display, xgc);
685 }
686 }
687 }
688 }
689
690 void X11SD_UnPuntPixmap(X11SDOps *xsdo)
691 {
692 if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
693 return;
694 }
695 xsdo->shmPMData.pixelsReadSinceBlt = 0;
696 if (xsdo->shmPMData.numBltsSinceRead >=
697 xsdo->shmPMData.numBltsThreshold)
698 {
699 if (xsdo->shmPMData.usingShmPixmap) {
700 if (!xsdo->shmPMData.pixmap) {
701 xsdo->shmPMData.pixmap =
702 XCreatePixmap(awt_display,
703 RootWindow(awt_display,
704 xsdo->configData->awt_visInfo.screen),
705 xsdo->pmWidth, xsdo->pmHeight, xsdo->depth);
706 }
707 if (xsdo->shmPMData.pixmap) {
708 GC xgc = XCreateGC(awt_display, xsdo->shmPMData.pixmap, 0L, NULL);
709 if (xgc != NULL) {
710 xsdo->drawable = xsdo->shmPMData.pixmap;
711 XCopyArea(awt_display,
712 xsdo->shmPMData.shmPixmap, xsdo->drawable, xgc,
713 0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
714 XSync(awt_display, False);
715 XFreeGC(awt_display, xgc);
716 xsdo->shmPMData.xRequestSent = JNI_FALSE;
717 xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
718 xsdo->shmPMData.numBltsThreshold *= 2;
719 }
720 }
721 }
722 } else {
723 xsdo->shmPMData.numBltsSinceRead++;
724 }
725 }
726
727 /**
728 * Determines if the cached image can be used for current operation.
729 * If the image is to be used to be read into by XShmGetImage,
730 * it must be close enough to avoid excessive reading from the screen;
731 * otherwise it should just be at least the size requested.
732 */
733 jboolean X11SD_CachedXImageFits(jint width, jint height, jint maxWidth,
734 jint maxHeight, jint depth, jboolean readBits)
735 {
736 /* we assume here that the cached image exists */
737 jint imgWidth = cachedXImage->width;
738 jint imgHeight = cachedXImage->height;
739
740 if (imgWidth < width || imgHeight < height || depth != cachedXImage->depth) {
741 /* doesn't fit if any of the cached image dimensions is smaller
742 or the depths are different */
743 return JNI_FALSE;
744 }
745
746 if (!readBits) {
747 /* Not reading from this image, so any image at least of the
748 size requested will do */
749 return JNI_TRUE;
750 }
751
752 if ((imgWidth < width + 64) && (imgHeight < height + 64)
753 && imgWidth <= maxWidth && imgHeight <= maxHeight)
754 {
755 /* Cached image's width/height shouldn't be more than 64 pixels
756 * larger than requested, because the region in XShmGetImage
757 * can't be specified and we don't want to read too much.
758 * Furthermore it has to be smaller than maxWidth/Height
759 * so drawables are not read out of bounds.
760 */
761 return JNI_TRUE;
762 }
763
764 return JNI_FALSE;
765 }
766 #endif /* MITSHM */
767
768 jint X11SD_InitWindow(JNIEnv *env, X11SDOps *xsdo)
769 {
770 if (xsdo->isPixmap == JNI_TRUE) {
771 return SD_FAILURE;
772 }
773 xsdo->cData = xsdo->configData->color_data;
774
775 return SD_SUCCESS;
776 }
777
778 static jint X11SD_Lock(JNIEnv *env,
779 SurfaceDataOps *ops,
780 SurfaceDataRasInfo *pRasInfo,
781 jint lockflags)
782 {
783 X11SDOps *xsdo = (X11SDOps *) ops;
784 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
785 int ret = SD_SUCCESS;
786
787 AWT_LOCK();
788
789 if (xsdo->invalid) {
790 AWT_UNLOCK();
791 SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
792 return SD_FAILURE;
793 }
794 xsdo->cData = xsdo->configData->color_data;
795 if (xsdo->drawable == 0 && X11SD_InitWindow(env, xsdo) == SD_FAILURE) {
796 AWT_UNLOCK();
797 return SD_FAILURE;
798 }
799 if ((lockflags & SD_LOCK_LUT) != 0 &&
800 (xsdo->cData == NULL ||
801 xsdo->cData->awt_icmLUT == NULL))
802 {
803 AWT_UNLOCK();
804 JNU_ThrowNullPointerException(env, "colormap lookup table");
805 return SD_FAILURE;
806 }
807 if ((lockflags & SD_LOCK_INVCOLOR) != 0 &&
808 (xsdo->cData == NULL ||
809 xsdo->cData->img_clr_tbl == NULL ||
810 xsdo->cData->img_oda_red == NULL ||
811 xsdo->cData->img_oda_green == NULL ||
812 xsdo->cData->img_oda_blue == NULL))
813 {
814 AWT_UNLOCK();
815 JNU_ThrowNullPointerException(env, "inverse colormap lookup table");
816 return SD_FAILURE;
817 }
818 if ((lockflags & SD_LOCK_INVGRAY) != 0 &&
819 (xsdo->cData == NULL ||
820 xsdo->cData->pGrayInverseLutData == NULL))
821 {
822 AWT_UNLOCK();
823 JNU_ThrowNullPointerException(env, "inverse gray lookup table");
824 return SD_FAILURE;
825 }
826 if (xsdo->dgaAvailable && (lockflags & (SD_LOCK_RD_WR))) {
827 int dgaret;
828
829 dgaret = (*pJDgaInfo->pGetLock)(env, awt_display, &xsdo->dgaDev,
830 xsdo->drawable, &xsdo->surfInfo,
831 pRasInfo->bounds.x1,
832 pRasInfo->bounds.y1,
833 pRasInfo->bounds.x2,
834 pRasInfo->bounds.y2);
835 if (dgaret == JDGA_SUCCESS) {
836 int wx = xsdo->surfInfo.window.lox;
837 int wy = xsdo->surfInfo.window.loy;
838 pRasInfo->bounds.x1 = xsdo->surfInfo.visible.lox - wx;
839 pRasInfo->bounds.y1 = xsdo->surfInfo.visible.loy - wy;
840 pRasInfo->bounds.x2 = xsdo->surfInfo.visible.hix - wx;
841 pRasInfo->bounds.y2 = xsdo->surfInfo.visible.hiy - wy;
842 xpriv->lockType = X11SD_LOCK_BY_DGA;
843 xpriv->lockFlags = lockflags;
844 return SD_SUCCESS;
845 } else if (dgaret == JDGA_UNAVAILABLE) {
846 xsdo->dgaAvailable = JNI_FALSE;
847 }
848 }
849 if (lockflags & SD_LOCK_RD_WR) {
850 if (lockflags & SD_LOCK_FASTEST) {
851 ret = SD_SLOWLOCK;
852 }
853 xpriv->lockType = X11SD_LOCK_BY_XIMAGE;
854 if (xsdo->isPixmap) {
855 #ifdef MITSHM
856 if (xsdo->shmPMData.usingShmPixmap) {
857 xpriv->lockType = X11SD_LOCK_BY_SHMEM;
858 }
859 #endif /* MITSHM */
860 if (pRasInfo->bounds.x1 < 0) {
861 pRasInfo->bounds.x1 = 0;
862 }
863 if (pRasInfo->bounds.y1 < 0) {
864 pRasInfo->bounds.y1 = 0;
865 }
866 if (pRasInfo->bounds.x2 > xsdo->pmWidth) {
867 pRasInfo->bounds.x2 = xsdo->pmWidth;
868 }
869 if (pRasInfo->bounds.y2 > xsdo->pmHeight) {
870 pRasInfo->bounds.y2 = xsdo->pmHeight;
871 }
872 }
873 } else {
874 /* They didn't lock for anything - we won't give them anything */
875 xpriv->lockType = X11SD_LOCK_BY_NULL;
876 }
877 xpriv->lockFlags = lockflags;
878 xpriv->img = NULL;
879
880 return ret;
881 /* AWT_UNLOCK() called in Unlock */
882 }
883
884 static void X11SD_GetRasInfo(JNIEnv *env,
885 SurfaceDataOps *ops,
886 SurfaceDataRasInfo *pRasInfo)
887 {
888 X11SDOps *xsdo = (X11SDOps *) ops;
889 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
890 jint lockFlags = xpriv->lockFlags;
891 jint depth = xsdo->depth;
892 int mult = xsdo->configData->pixelStride;
893
894 if (xsdo->dgaAvailable &&
895 xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
896 (lockFlags & SD_LOCK_FASTEST))
897 {
898 /* Try one more time to use DGA (now with smaller bounds)... */
899 int dgaret;
900
901 dgaret = (*pJDgaInfo->pGetLock)(env, awt_display, &xsdo->dgaDev,
902 xsdo->drawable, &xsdo->surfInfo,
903 pRasInfo->bounds.x1,
904 pRasInfo->bounds.y1,
905 pRasInfo->bounds.x2,
906 pRasInfo->bounds.y2);
907 if (dgaret == JDGA_SUCCESS) {
908 int wx = xsdo->surfInfo.window.lox;
909 int wy = xsdo->surfInfo.window.loy;
910 pRasInfo->bounds.x1 = xsdo->surfInfo.visible.lox - wx;
911 pRasInfo->bounds.y1 = xsdo->surfInfo.visible.loy - wy;
912 pRasInfo->bounds.x2 = xsdo->surfInfo.visible.hix - wx;
913 pRasInfo->bounds.y2 = xsdo->surfInfo.visible.hiy - wy;
914 xpriv->lockType = X11SD_LOCK_BY_DGA;
915 } else if (dgaret == JDGA_UNAVAILABLE) {
916 xsdo->dgaAvailable = JNI_FALSE;
917 }
918 }
919
920 if (xpriv->lockType == X11SD_LOCK_BY_DGA) {
921 int scan = xsdo->surfInfo.surfaceScan;
922 int wx = xsdo->surfInfo.window.lox;
923 int wy = xsdo->surfInfo.window.loy;
924 pRasInfo->rasBase =
925 (void *)(((uintptr_t) xsdo->surfInfo.basePtr) + (scan*wy + wx) * mult);
926 pRasInfo->pixelStride = mult;
927 pRasInfo->pixelBitOffset = 0;
928 pRasInfo->scanStride = scan * mult;
929 #ifdef MITSHM
930 } else if (xpriv->lockType == X11SD_LOCK_BY_SHMEM) {
931 if (xsdo->shmPMData.xRequestSent == JNI_TRUE) {
932 /* need to sync before using shared mem pixmap
933 if any x calls were issued for this pixmap */
934 XSync(awt_display, False);
935 xsdo->shmPMData.xRequestSent = JNI_FALSE;
936 }
937 xpriv->x = pRasInfo->bounds.x1;
938 xpriv->y = pRasInfo->bounds.y1;
939 pRasInfo->rasBase = xsdo->shmPMData.shmSegInfo->shmaddr;
940 pRasInfo->pixelStride = mult;
941 pRasInfo->pixelBitOffset = 0;
942 pRasInfo->scanStride = xsdo->shmPMData.bytesPerLine;
943 #endif /* MITSHM */
944 } else if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE) {
945 int x, y, w, h;
946 x = pRasInfo->bounds.x1;
947 y = pRasInfo->bounds.y1;
948 w = pRasInfo->bounds.x2 - x;
949 h = pRasInfo->bounds.y2 - y;
950
951 xpriv->img = X11SD_GetImage(env, xsdo, &pRasInfo->bounds, lockFlags);
952 if (xpriv->img) {
953 int scan = xpriv->img->bytes_per_line;
954 xpriv->x = x;
955 xpriv->y = y;
956 pRasInfo->rasBase = xpriv->img->data - x * mult - y * scan;
957 pRasInfo->pixelStride = mult;
958 pRasInfo->pixelBitOffset = 0;
959 pRasInfo->scanStride = scan;
960 } else {
961 pRasInfo->rasBase = NULL;
962 pRasInfo->pixelStride = 0;
963 pRasInfo->pixelBitOffset = 0;
964 pRasInfo->scanStride = 0;
965 }
966 } else {
967 /* They didn't lock for anything - we won't give them anything */
968 pRasInfo->rasBase = NULL;
969 pRasInfo->pixelStride = 0;
970 pRasInfo->pixelBitOffset = 0;
971 pRasInfo->scanStride = 0;
972 }
973 if (lockFlags & SD_LOCK_LUT) {
974 pRasInfo->lutBase = (jint *) xsdo->cData->awt_icmLUT;
975 pRasInfo->lutSize = xsdo->cData->awt_numICMcolors;
976 } else {
977 pRasInfo->lutBase = NULL;
978 pRasInfo->lutSize = 0;
979 }
980 if (lockFlags & SD_LOCK_INVCOLOR) {
981 pRasInfo->invColorTable = xsdo->cData->img_clr_tbl;
982 pRasInfo->redErrTable = xsdo->cData->img_oda_red;
983 pRasInfo->grnErrTable = xsdo->cData->img_oda_green;
984 pRasInfo->bluErrTable = xsdo->cData->img_oda_blue;
985 } else {
986 pRasInfo->invColorTable = NULL;
987 pRasInfo->redErrTable = NULL;
988 pRasInfo->grnErrTable = NULL;
989 pRasInfo->bluErrTable = NULL;
990 }
991 if (lockFlags & SD_LOCK_INVGRAY) {
992 pRasInfo->invGrayTable = xsdo->cData->pGrayInverseLutData;
993 } else {
994 pRasInfo->invGrayTable = NULL;
995 }
996 }
997
998 static void X11SD_Unlock(JNIEnv *env,
999 SurfaceDataOps *ops,
1000 SurfaceDataRasInfo *pRasInfo)
1001 {
1002 X11SDOps *xsdo = (X11SDOps *) ops;
1003 X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
1004
1005 if (xpriv->lockType == X11SD_LOCK_BY_DGA) {
1006 (*pJDgaInfo->pReleaseLock)(env, xsdo->dgaDev, xsdo->drawable);
1007 } else if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
1008 xpriv->img != NULL)
1009 {
1010 if (xpriv->lockFlags & SD_LOCK_WRITE) {
1011 int x = xpriv->x;
1012 int y = xpriv->y;
1013 int w = pRasInfo->bounds.x2 - x;
1014 int h = pRasInfo->bounds.y2 - y;
1015 Drawable drawable = xsdo->drawable;
1016 GC xgc = xsdo->cachedGC;
1017 if (xgc == NULL) {
1018 xsdo->cachedGC = xgc =
1019 XCreateGC(awt_display, drawable, 0L, NULL);
1020 }
1021
1022 if (xpriv->img->byte_order != nativeByteOrder) {
1023 /* switching bytes back in 24 and 32 bpp cases. */
1024 /* For 16 bit XLib will switch for us. */
1025 if (xsdo->depth > 16) {
1026 X11SD_SwapBytes(xsdo, xpriv->img, xsdo->depth,
1027 xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
1028 }
1029 }
1030
1031 #ifdef MITSHM
1032 if (xpriv->img->obdata != NULL) {
1033 XShmPutImage(awt_display, drawable, xgc,
1034 xpriv->img, 0, 0, x, y, w, h, False);
1035 XFlush(awt_display);
1036 } else {
1037 XPutImage(awt_display, drawable, xgc,
1038 xpriv->img, 0, 0, x, y, w, h);
1039 }
1040 if (xsdo->shmPMData.usingShmPixmap) {
1041 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1042 }
1043 #else
1044 XPutImage(awt_display, drawable, xgc,
1045 xpriv->img, 0, 0, x, y, w, h);
1046 #endif /* MITSHM */
1047
1048 (*pJDgaInfo->pXRequestSent)(env, xsdo->dgaDev, drawable);
1049 }
1050 X11SD_DisposeOrCacheXImage(xpriv->img);
1051 xpriv->img = (XImage *)NULL;
1052 }
1053 /* the background pixel is not valid anymore */
1054 if (xpriv->lockFlags & SD_LOCK_WRITE) {
1055 xsdo->isBgInitialized = JNI_FALSE;
1056 }
1057 xpriv->lockType = X11SD_LOCK_UNLOCKED;
1058 AWT_UNLOCK();
1059 }
1060
1061 static int
1062 X11SD_ClipToRoot(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
1063 X11SDOps *xsdo)
1064 {
1065 Position x1=0, y1=0, x2=0, y2=0;
1066 int tmpx, tmpy;
1067 Window tmpchild;
1068
1069 Window window = (Window)(xsdo->drawable); /* is always a Window */
1070 XWindowAttributes winAttr;
1071
1072 Status status = XGetWindowAttributes(awt_display, window, &winAttr);
1073 if (status == 0) {
1074 /* Failure, X window no longer valid. */
1075 return FALSE;
1076 }
1077 if (!XTranslateCoordinates(awt_display, window,
1078 RootWindowOfScreen(winAttr.screen),
1079 0, 0, &tmpx, &tmpy, &tmpchild)) {
1080 return FALSE;
1081 }
1082
1083 x1 = -(x1 + tmpx);
1084 y1 = -(y1 + tmpy);
1085
1086 x2 = x1 + DisplayWidth(awt_display, xsdo->configData->awt_visInfo.screen);
1087 y2 = y1 + DisplayHeight(awt_display, xsdo->configData->awt_visInfo.screen);
1088
1089 x1 = MAX(bounds->x1, x1);
1090 y1 = MAX(bounds->y1, y1);
1091 x2 = MIN(bounds->x2, x2);
1092 y2 = MIN(bounds->y2, y2);
1093 if ((x1 >= x2) || (y1 >= y2)) {
1094 return FALSE;
1095 }
1096 b->x1 = x1;
1097 b->y1 = y1;
1098 b->x2 = x2;
1099 b->y2 = y2;
1100
1101 return TRUE;
1102 }
1103
1104 /*
1105 * x1, y1, x2, y2 - our rectangle in the coord system of
1106 * the widget
1107 * px1, xy1, px2, py2 - current parent rect coords in the
1108 * same system
1109 */
1110 static int
1111 X11SD_FindClip(SurfaceDataBounds *b, SurfaceDataBounds *bounds, X11SDOps *xsdo)
1112 {
1113 return TRUE;
1114 }
1115
1116 static void
1117 X11SD_SwapBytes(X11SDOps *xsdo, XImage * img, int depth, int bpp) {
1118 int lengthInBytes = img->height * img->bytes_per_line;
1119 int i;
1120
1121 switch (depth) {
1122 case 12:
1123 case 15:
1124 case 16:
1125 {
1126 /* AB -> BA */
1127 unsigned short *d = (unsigned short *)img->data;
1128 unsigned short t;
1129 for (i = 0; i < lengthInBytes/2; i++) {
1130 t = *d;
1131 *d++ = (t >> 8) | (t << 8);
1132 }
1133 img->byte_order = nativeByteOrder;
1134 img->bitmap_bit_order = nativeByteOrder;
1135 break;
1136 }
1137 case 24:
1138 {
1139 /* ABC -> CBA */
1140 if (bpp == 24) {
1141 // 4517321: Only swap if we have a "real" ThreeByteBgr
1142 // visual (denoted by a red_mask of 0xff). Due to ambiguity
1143 // in the X11 spec, it appears that the swap is not required
1144 // on Linux configurations that use 24 bits per pixel (denoted
1145 // by a red_mask of 0xff0000).
1146 if (xsdo->configData->awt_visInfo.red_mask == 0xff) {
1147 int scan = img->bytes_per_line;
1148 unsigned char *d = (unsigned char *) img->data;
1149 unsigned char *d1;
1150 unsigned int t;
1151 int j;
1152
1153 for (i = 0; i < img->height; i++, d += scan) {
1154 d1 = d;
1155 for (j = 0; j < img->width; j++, d1 += 3) {
1156 /* not obvious opt from XLib src */
1157 t = d1[0]; d1[0] = d1[2]; d1[2] = t;
1158 }
1159 }
1160 }
1161 break;
1162 }
1163 }
1164 /* FALL THROUGH for 32-bit case */
1165 case 32:
1166 {
1167 /* ABCD -> DCBA */
1168 unsigned int *d = (unsigned int *) img->data;
1169 unsigned int t;
1170 for (i = 0; i < lengthInBytes/4; i++) {
1171 t = *d;
1172 *d++ = ((t >> 24) |
1173 ((t >> 8) & 0xff00) |
1174 ((t & 0xff00) << 8) |
1175 (t << 24));
1176 }
1177 break;
1178 }
1179 }
1180 }
1181
1182 static XImage * X11SD_GetImage(JNIEnv *env, X11SDOps *xsdo,
1183 SurfaceDataBounds *bounds,
1184 jint lockFlags)
1185 {
1186 int x, y, w, h, maxWidth, maxHeight;
1187 int scan;
1188 XImage * img = NULL;
1189 Drawable drawable;
1190 int depth = xsdo->depth;
1191 int mult = xsdo->configData->pixelStride;
1192 int pad = (mult == 3) ? 32 : mult * 8; // pad must be 8, 16, or 32
1193 jboolean readBits = lockFlags & SD_LOCK_NEED_PIXELS;
1194
1195 x = bounds->x1;
1196 y = bounds->y1;
1197 w = bounds->x2 - x;
1198 h = bounds->y2 - y;
1199
1200 #ifdef MITSHM
1201 if (useMitShmExt == CAN_USE_MITSHM) {
1202 if (xsdo->isPixmap) {
1203 if (readBits) {
1204 X11SD_PuntPixmap(xsdo, w, h);
1205 }
1206 maxWidth = xsdo->pmWidth;
1207 maxHeight = xsdo->pmHeight;
1208 } else {
1209 XWindowAttributes winAttr;
1210 if (XGetWindowAttributes(awt_display,
1211 (Window) xsdo->drawable, &winAttr) != 0) {
1212 maxWidth = winAttr.width;
1213 maxHeight = winAttr.height;
1214 } else {
1215 /* XGWA failed which isn't a good thing. Defaulting to using
1216 * x,y means that after the subtraction of these we will use
1217 * w=0, h=0 which is a reasonable default on such a failure.
1218 */
1219 maxWidth = x;
1220 maxHeight = y;
1221 }
1222 }
1223 maxWidth -= x;
1224 maxHeight -= y;
1225
1226 img = X11SD_GetSharedImage(xsdo, w, h, maxWidth, maxHeight, readBits);
1227 }
1228 #endif /* MITSHM */
1229 drawable = xsdo->drawable;
1230
1231 if (readBits) {
1232 #ifdef MITSHM
1233 if (img != NULL) {
1234 if (!XShmGetImage(awt_display, drawable, img, x, y, -1)) {
1235 X11SD_DisposeOrCacheXImage(img);
1236 img = NULL;
1237 }
1238 }
1239 if (img == NULL) {
1240 img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
1241 if (img != NULL) {
1242 img->obdata = NULL;
1243 }
1244 }
1245 #else
1246 img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
1247 #endif /* MITSHM */
1248 if (img == NULL) {
1249 SurfaceDataBounds temp;
1250 img = XCreateImage(awt_display,
1251 xsdo->configData->awt_visInfo.visual,
1252 depth, ZPixmap, 0, NULL, w, h, pad, 0);
1253 if (img == NULL) {
1254 return NULL;
1255 }
1256
1257 scan = img->bytes_per_line;
1258 img->data = malloc(h * scan);
1259 if (img->data == NULL) {
1260 XFree(img);
1261 return NULL;
1262 }
1263
1264 if (xsdo->isPixmap == JNI_FALSE &&
1265 X11SD_ClipToRoot(&temp, bounds, xsdo)) {
1266
1267 XImage * temp_image;
1268 temp_image = XGetImage(awt_display, drawable,
1269 temp.x1, temp.y1,
1270 temp.x2 - temp.x1,
1271 temp.y2 - temp.y1,
1272 -1, ZPixmap);
1273 if (temp_image == NULL) {
1274 XGrabServer(awt_display);
1275 if (X11SD_FindClip(&temp, bounds, xsdo)) {
1276 temp_image =
1277 XGetImage(awt_display, drawable,
1278 temp.x1, temp.y1,
1279 temp.x2 - temp.x1,
1280 temp.y2 - temp.y1,
1281 -1, ZPixmap);
1282 }
1283 XUngrabServer(awt_display);
1284 /* Workaround for bug 5039226 */
1285 XSync(awt_display, False);
1286 }
1287 if (temp_image != NULL) {
1288 int temp_scan, bytes_to_copy;
1289 char * img_addr, * temp_addr;
1290 int i;
1291
1292 img_addr = img->data +
1293 (temp.y1 - y) * scan + (temp.x1 - x) * mult;
1294 temp_scan = temp_image->bytes_per_line;
1295 temp_addr = temp_image->data;
1296 bytes_to_copy = (temp.x2 - temp.x1) * mult;
1297 for (i = temp.y1; i < temp.y2; i++) {
1298 memcpy(img_addr, temp_addr, bytes_to_copy);
1299 img_addr += scan;
1300 temp_addr += temp_scan;
1301 }
1302 XDestroyImage(temp_image);
1303 }
1304 }
1305 img->obdata = NULL;
1306 }
1307 if (depth > 8 && img->byte_order != nativeByteOrder) {
1308 X11SD_SwapBytes(xsdo, img, depth,
1309 xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
1310 }
1311 } else {
1312 /*
1313 * REMIND: This might be better to move to the Lock function
1314 * to avoid lengthy I/O pauses inside what may be a critical
1315 * section. This will be more critical when SD_LOCK_READ is
1316 * implemented. Another solution is to cache the pixels
1317 * to avoid reading for every operation.
1318 */
1319 if (img == NULL) {
1320 img = XCreateImage(awt_display,
1321 xsdo->configData->awt_visInfo.visual,
1322 depth, ZPixmap, 0, NULL, w, h, pad, 0);
1323 if (img == NULL) {
1324 return NULL;
1325 }
1326
1327 img->data = malloc(h * img->bytes_per_line);
1328 if (img->data == NULL) {
1329 XFree(img);
1330 return NULL;
1331 }
1332
1333 img->obdata = NULL;
1334
1335 if (img->byte_order != nativeByteOrder &&
1336 (depth == 15 || depth == 16 || depth == 12)) {
1337 /* bytes will be swapped by XLib. */
1338 img->byte_order = nativeByteOrder;
1339 img->bitmap_bit_order = nativeByteOrder;
1340 }
1341 }
1342 }
1343 return img;
1344 }
1345
1346 void X11SD_DisposeOrCacheXImage(XImage * image) {
1347 /* REMIND: might want to check if the new image worth caching. */
1348 /* Cache only shared images. Passed image is assumed to be non-null. */
1349 if (image->obdata != NULL) {
1350 if (cachedXImage != NULL) {
1351 X11SD_DisposeXImage(cachedXImage);
1352 }
1353 cachedXImage = image;
1354 } else {
1355 X11SD_DisposeXImage(image);
1356 }
1357 }
1358
1359 void X11SD_DisposeXImage(XImage * image) {
1360 if (image != NULL) {
1361 #ifdef MITSHM
1362 if (image->obdata != NULL) {
1363 X11SD_DropSharedSegment((XShmSegmentInfo*)image->obdata);
1364 image->obdata = NULL;
1365 }
1366 #endif /* MITSHM */
1367 XDestroyImage(image);
1368 }
1369 }
1370
1371 static JDgaStatus
1372 GetLockStub(JNIEnv *env, Display *display, void **dgaDev,
1373 Drawable d, JDgaSurfaceInfo *pSurface,
1374 jint lox, jint loy, jint hix, jint hiy)
1375 {
1376 return JDGA_UNAVAILABLE;
1377 }
1378
1379 static JDgaStatus
1380 ReleaseLockStub(JNIEnv *env, void *dgaDev, Drawable d)
1381 {
1382 return JDGA_FAILED;
1383 }
1384
1385 static void
1386 XRequestSentStub(JNIEnv *env, void *dgaDev, Drawable d)
1387 {
1388 }
1389
1390 static void
1391 LibDisposeStub(JNIEnv *env)
1392 {
1393 }
1394
1395 static JDgaLibInfo DgaLibInfoStub = {
1396 NULL,
1397 GetLockStub,
1398 ReleaseLockStub,
1399 XRequestSentStub,
1400 LibDisposeStub,
1401 };
1402
1403 void X11SD_LibDispose(JNIEnv *env) {
1404 AWT_LOCK();
1405 if (pJDgaInfo != NULL) {
1406 pJDgaInfo->pLibDispose(env);
1407 pJDgaInfo = &DgaLibInfoStub;
1408 }
1409 AWT_UNLOCK();
1410 }
1411
1412 void
1413 X11SD_DirectRenderNotify(JNIEnv *env, X11SDOps *xsdo)
1414 {
1415 #ifdef MITSHM
1416 if (xsdo->shmPMData.usingShmPixmap) {
1417 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1418 }
1419 #endif /* MITSHM */
1420 (*pJDgaInfo->pXRequestSent)(env, xsdo->dgaDev, xsdo->drawable);
1421 awt_output_flush();
1422 }
1423
1424 /*
1425 * Sets transparent pixels in the pixmap to
1426 * the specified solid background color and returns it.
1427 * Doesn't update source pixmap unless the color of the
1428 * transparent pixels is different from the specified color.
1429 *
1430 * Note: The AWT lock must be held by the current thread
1431 * while calling into this method.
1432 */
1433 static Drawable
1434 X11SD_GetPixmapWithBg(JNIEnv *env, X11SDOps *xsdo, jint pixel)
1435 {
1436 /* assert AWT_CHECK_HAVE_LOCK(); */
1437
1438 if (xsdo->invalid) {
1439 AWT_UNLOCK();
1440 SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
1441 return 0;
1442 }
1443
1444 /* the image doesn't have transparency, just return it */
1445 if (xsdo->bitmask == 0) {
1446 /* don't need to unlock here, the caller will unlock through
1447 the release call */
1448 return xsdo->drawable;
1449 }
1450
1451 /* Check if current color of the transparent pixels is different
1452 from the specified one */
1453 if (xsdo->isBgInitialized == JNI_FALSE || xsdo->bgPixel != pixel) {
1454 GC srcGC;
1455 GC bmGC;
1456
1457 if (xsdo->drawable == 0) {
1458 AWT_UNLOCK();
1459 return 0;
1460 }
1461
1462 bmGC = XCreateGC(awt_display, xsdo->bitmask, 0, NULL);
1463 if (bmGC == NULL) {
1464 AWT_UNLOCK();
1465 return 0;
1466 }
1467
1468 /* invert the bitmask */
1469 XSetFunction(awt_display, bmGC, GXxor);
1470 XSetForeground(awt_display, bmGC, 1);
1471 XFillRectangle(awt_display, xsdo->bitmask, bmGC,
1472 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1473
1474 srcGC = XCreateGC(awt_display, xsdo->drawable, 0L, NULL);
1475 if (srcGC == NULL) {
1476 XFreeGC(awt_display, bmGC);
1477 AWT_UNLOCK();
1478 return 0;
1479 }
1480
1481 /* set transparent pixels in the source pm to the bg color */
1482 XSetClipMask(awt_display, srcGC, xsdo->bitmask);
1483 XSetForeground(awt_display, srcGC, pixel);
1484 XFillRectangle(awt_display, xsdo->drawable, srcGC,
1485 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1486
1487 /* invert the mask back */
1488 XFillRectangle(awt_display, xsdo->bitmask, bmGC,
1489 0, 0, xsdo->pmWidth, xsdo->pmHeight);
1490
1491 XFreeGC(awt_display, bmGC);
1492 XFreeGC(awt_display, srcGC);
1493 xsdo->bgPixel = pixel;
1494 xsdo->isBgInitialized = JNI_TRUE;
1495 }
1496
1497 return xsdo->drawable;
1498 }
1499
1500 static void
1501 X11SD_ReleasePixmapWithBg(JNIEnv *env, X11SDOps *xsdo)
1502 {
1503 #ifdef MITSHM
1504 if (xsdo->shmPMData.usingShmPixmap) {
1505 xsdo->shmPMData.xRequestSent = JNI_TRUE;
1506 }
1507 #endif /* MITSHM */
1508 }
1509
1510 #endif /* !HEADLESS */
1511
1512 /*
1513 * Class: sun_java2d_x11_X11SurfaceData
1514 * Method: XCreateGC
1515 * Signature: (I)J
1516 */
1517 JNIEXPORT jlong JNICALL
1518 Java_sun_java2d_x11_XSurfaceData_XCreateGC
1519 (JNIEnv *env, jclass xsd, jlong pXSData)
1520 {
1521 jlong ret;
1522
1523 #ifndef HEADLESS
1524 X11SDOps *xsdo;
1525
1526 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XCreateGC");
1527
1528 xsdo = (X11SDOps *) pXSData;
1529 if (xsdo == NULL) {
1530 return 0L;
1531 }
1532
1533 xsdo->javaGC = XCreateGC(awt_display, xsdo->drawable, 0, NULL);
1534 ret = (jlong) xsdo->javaGC;
1535 #else /* !HEADLESS */
1536 ret = 0L;
1537 #endif /* !HEADLESS */
1538
1539 return ret;
1540 }
1541
1542 /*
1543 * Class: sun_java2d_x11_X11SurfaceData
1544 * Method: XResetClip
1545 * Signature: (JIIIILsun/java2d/pipe/Region;)V
1546 */
1547 JNIEXPORT void JNICALL
1548 Java_sun_java2d_x11_XSurfaceData_XResetClip
1549 (JNIEnv *env, jclass xsd, jlong xgc)
1550 {
1551 #ifndef HEADLESS
1552 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XResetClip");
1553 XSetClipMask(awt_display, (GC) xgc, None);
1554 #endif /* !HEADLESS */
1555 }
1556
1557 /*
1558 * Class: sun_java2d_x11_X11SurfaceData
1559 * Method: XSetClip
1560 * Signature: (JIIIILsun/java2d/pipe/Region;)V
1561 */
1562 JNIEXPORT void JNICALL
1563 Java_sun_java2d_x11_XSurfaceData_XSetClip
1564 (JNIEnv *env, jclass xsd, jlong xgc,
1565 jint x1, jint y1, jint x2, jint y2,
1566 jobject complexclip)
1567 {
1568 #ifndef HEADLESS
1569 int numrects;
1570 XRectangle rects[256];
1571 XRectangle *pRect = rects;
1572
1573 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetClip");
1574
1575 numrects = RegionToYXBandedRectangles(env,
1576 x1, y1, x2, y2, complexclip,
1577 &pRect, 256);
1578
1579 XSetClipRectangles(awt_display, (GC) xgc, 0, 0, pRect, numrects, YXBanded);
1580
1581 if (pRect != rects) {
1582 free(pRect);
1583 }
1584 #endif /* !HEADLESS */
1585 }
1586
1587 /*
1588 * Class: sun_java2d_x11_X11SurfaceData
1589 * Method: XSetCopyMode
1590 * Signature: (J)V
1591 */
1592 JNIEXPORT void JNICALL
1593 Java_sun_java2d_x11_X11SurfaceData_XSetCopyMode
1594 (JNIEnv *env, jclass xsd, jlong xgc)
1595 {
1596 #ifndef HEADLESS
1597 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetCopyMode");
1598 XSetFunction(awt_display, (GC) xgc, GXcopy);
1599 #endif /* !HEADLESS */
1600 }
1601
1602 /*
1603 * Class: sun_java2d_x11_X11SurfaceData
1604 * Method: XSetXorMode
1605 * Signature: (J)V
1606 */
1607 JNIEXPORT void JNICALL
1608 Java_sun_java2d_x11_X11SurfaceData_XSetXorMode
1609 (JNIEnv *env, jclass xr, jlong xgc)
1610 {
1611 #ifndef HEADLESS
1612 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetXorMode");
1613 XSetFunction(awt_display, (GC) xgc, GXxor);
1614 #endif /* !HEADLESS */
1615 }
1616
1617 /*
1618 * Class: sun_java2d_x11_X11SurfaceData
1619 * Method: XSetForeground
1620 * Signature: (JI)V
1621 */
1622 JNIEXPORT void JNICALL
1623 Java_sun_java2d_x11_X11SurfaceData_XSetForeground
1624 (JNIEnv *env, jclass xsd, jlong xgc, jint pixel)
1625 {
1626 #ifndef HEADLESS
1627 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetForeground");
1628 XSetForeground(awt_display, (GC) xgc, pixel);
1629 #endif /* !HEADLESS */
1630 }
1631
1632 /*
1633 * Class: sun_java2d_x11_X11SurfaceData
1634 * Method: XSetGraphicsExposures
1635 * Signature: (JZ)V
1636 */
1637 JNIEXPORT void JNICALL
1638 Java_sun_java2d_x11_XSurfaceData_XSetGraphicsExposures
1639 (JNIEnv *env, jclass xsd, jlong xgc, jboolean needExposures)
1640 {
1641 #ifndef HEADLESS
1642 J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetGraphicsExposures");
1643 XSetGraphicsExposures(awt_display, (GC) xgc, needExposures ? True : False);
1644 #endif /* !HEADLESS */
1645 }