1 /*
2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26
27
28 /**
29 * This class holds the information for a particular graphics device.
30 * Since a display change can cause the creation of new devices
31 * at any time, there is no referencing of the devices array allowed.
32 * Instead, anyone wishing to reference a device in the array (e.g.,
33 * the current default device or a device for a given hWnd) must
34 * call one of the static methods of this class with the index of
35 * the device in question. Those methods will then lock the devices
36 * array and forward the request to the current device at that
37 * array index.
38 */
39
40 #include <awt.h>
41 #include <sun_awt_Win32GraphicsDevice.h>
42 #include "awt_Canvas.h"
43 #include "awt_Win32GraphicsDevice.h"
44 #include "awt_Window.h"
45 #include "java_awt_Transparency.h"
46 #include "java_awt_color_ColorSpace.h"
47 #include "sun_awt_Win32GraphicsDevice.h"
48 #include "java_awt_image_DataBuffer.h"
49 #include "dither.h"
50 #include "img_util_md.h"
51 #include "Devices.h"
52 #include <d2d1.h>
53 #pragma comment(lib, "d2d1")
54 #include "systemScale.h"
55
56 uns_ordered_dither_array img_oda_alpha;
57
58 jclass AwtWin32GraphicsDevice::indexCMClass;
59 jclass AwtWin32GraphicsDevice::wToolkitClass;
60 jfieldID AwtWin32GraphicsDevice::dynamicColorModelID;
61 jfieldID AwtWin32GraphicsDevice::indexCMrgbID;
62 jfieldID AwtWin32GraphicsDevice::indexCMcacheID;
63 jmethodID AwtWin32GraphicsDevice::paletteChangedMID;
64 BOOL AwtWin32GraphicsDevice::primaryPalettized;
65 int AwtWin32GraphicsDevice::primaryIndex = 0;
66
67
68 /**
69 * Construct this device. Store the screen (index into the devices
70 * array of this object), the array (used in static references via
71 * particular device indices), the monitor/pMonitorInfo (which other
72 * classes will inquire of this device), the bits per pixel of this
73 * device, and information on whether the primary device is palettized.
74 */
75 AwtWin32GraphicsDevice::AwtWin32GraphicsDevice(int screen,
76 HMONITOR mhnd, Devices *arr)
77 {
78 this->screen = screen;
79 this->devicesArray = arr;
80 this->scaleX = 1;
81 this->scaleY = 1;
82 javaDevice = NULL;
83 colorData = new ImgColorData;
84 colorData->grayscale = GS_NOTGRAY;
85 palette = NULL;
86 cData = NULL;
87 gpBitmapInfo = NULL;
88 monitor = mhnd;
89 pMonitorInfo = new MONITORINFOEX;
90 pMonitorInfo->cbSize = sizeof(MONITORINFOEX);
91 ::GetMonitorInfo(monitor, pMonitorInfo);
92
93 // Set primary device info: other devices will need to know
94 // whether the primary is palettized during the initialization
95 // process
96 HDC hDC = this->GetDC();
97 colorData->bitsperpixel = ::GetDeviceCaps(hDC, BITSPIXEL);
98 this->ReleaseDC(hDC);
99 if (MONITORINFOF_PRIMARY & pMonitorInfo->dwFlags) {
100 primaryIndex = screen;
101 if (colorData->bitsperpixel > 8) {
102 primaryPalettized = FALSE;
103 } else {
104 primaryPalettized = TRUE;
105 }
106 }
107 }
108
109 AwtWin32GraphicsDevice::~AwtWin32GraphicsDevice()
110 {
111 delete colorData;
112 if (gpBitmapInfo) {
113 free(gpBitmapInfo);
114 }
115 if (palette) {
116 delete palette;
117 }
118 if (pMonitorInfo) {
119 delete pMonitorInfo;
120 }
121 if (javaDevice) {
122 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
123 env->DeleteWeakGlobalRef(javaDevice);
124 }
125 if (cData != NULL) {
126 freeICMColorData(cData);
127 }
128 }
129
130 HDC AwtWin32GraphicsDevice::MakeDCFromMonitor(HMONITOR hmMonitor) {
131 HDC retCode = NULL;
132 if (NULL != hmMonitor) {
133 MONITORINFOEX mieInfo;
134
135 memset((void*)(&mieInfo), 0, sizeof(MONITORINFOEX));
136 mieInfo.cbSize = sizeof(MONITORINFOEX);
137
138 if (TRUE == ::GetMonitorInfo(hmMonitor, (LPMONITORINFOEX)(&mieInfo))) {
139 HDC hDC = CreateDC(mieInfo.szDevice, NULL, NULL, NULL);
140 if (NULL != hDC) {
141 retCode = hDC;
142 }
143 }
144 }
145 return retCode;
146 }
147
148 HDC AwtWin32GraphicsDevice::GetDC()
149 {
150 return MakeDCFromMonitor(monitor);
151 }
152
153 void AwtWin32GraphicsDevice::ReleaseDC(HDC hDC)
154 {
155 if (hDC != NULL) {
156 ::DeleteDC(hDC);
157 }
158 }
159
160 /**
161 * Init this device. This creates the bitmap structure
162 * used to hold the device color data and initializes any
163 * appropriate palette structures.
164 */
165 void AwtWin32GraphicsDevice::Initialize()
166 {
167 unsigned int ri, gi, bi;
168 if (colorData->bitsperpixel < 8) {
169 // REMIND: how to handle?
170 }
171
172 // Create a BitmapInfo object for color data
173 if (!gpBitmapInfo) {
174 try {
175 gpBitmapInfo = (BITMAPINFO *)
176 safe_Malloc(sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
177 } catch (std::bad_alloc&) {
178 throw;
179 }
180 gpBitmapInfo->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
181 }
182 gpBitmapInfo->bmiHeader.biBitCount = 0;
183 HDC hBMDC = this->GetDC();
184 HBITMAP hBM = ::CreateCompatibleBitmap(hBMDC, 1, 1);
185 VERIFY(::GetDIBits(hBMDC, hBM, 0, 1, NULL, gpBitmapInfo, DIB_RGB_COLORS));
186
187 if (colorData->bitsperpixel > 8) {
188 if (MONITORINFOF_PRIMARY & pMonitorInfo->dwFlags) {
189 primaryPalettized = FALSE;
190 }
191 if (colorData->bitsperpixel != 24) { // 15, 16, or 32 bpp
192 int foo;
193 gpBitmapInfo->bmiHeader.biCompression = BI_BITFIELDS;
194 if (::GetDIBits(hBMDC, hBM, 0, 1, &foo, gpBitmapInfo,
195 DIB_RGB_COLORS) == 0)
196 {
197 // Bug 4684966: If GetDIBits returns an error, we could
198 // get stuck in an infinite loop setting the colorData
199 // fields. Hardcode bitColors to reasonable values instead.
200 // These values are picked according to standard masks
201 // for these bit depths on win9x, according to MSDN docs.
202 switch (colorData->bitsperpixel) {
203 case 15:
204 ((int *)gpBitmapInfo->bmiColors)[0] = 0x7c00;
205 ((int *)gpBitmapInfo->bmiColors)[1] = 0x03e0;
206 ((int *)gpBitmapInfo->bmiColors)[2] = 0x001f;
207 break;
208 case 16:
209 ((int *)gpBitmapInfo->bmiColors)[0] = 0xf800;
210 ((int *)gpBitmapInfo->bmiColors)[1] = 0x07e0;
211 ((int *)gpBitmapInfo->bmiColors)[2] = 0x001f;
212 break;
213 case 32:
214 default:
215 ((int *)gpBitmapInfo->bmiColors)[0] = 0xff0000;
216 ((int *)gpBitmapInfo->bmiColors)[1] = 0x00ff00;
217 ((int *)gpBitmapInfo->bmiColors)[2] = 0x0000ff;
218 break;
219 }
220 }
221 ri = ((unsigned int *)gpBitmapInfo->bmiColors)[0];
222 colorData->rOff = 0;
223 while ((ri & 1) == 0) {
224 colorData->rOff++;
225 ri >>= 1;
226 }
227 colorData->rScale = 0;
228 while (ri < 0x80) {
229 colorData->rScale++;
230 ri <<= 1;
231 }
232 gi = ((unsigned int *)gpBitmapInfo->bmiColors)[1];
233 colorData->gOff = 0;
234 while ((gi & 1) == 0) {
235 colorData->gOff++;
236 gi >>= 1;
237 }
238 colorData->gScale = 0;
239 while (gi < 0x80) {
240 colorData->gScale++;
241 gi <<= 1;
242 }
243 bi = ((unsigned int *)gpBitmapInfo->bmiColors)[2];
244 colorData->bOff = 0;
245 while ((bi & 1) == 0) {
246 colorData->bOff++;
247 bi >>= 1;
248 }
249 colorData->bScale = 0;
250 while (bi < 0x80) {
251 colorData->bScale++;
252 bi <<= 1;
253 }
254 if ( (0 == colorData->bOff)
255 && (5 == colorData->gOff)
256 && (10 == colorData->rOff)
257 && (3 == colorData->bScale)
258 && (3 == colorData->gScale)
259 && (3 == colorData->rScale)) {
260 colorData->bitsperpixel = 15;
261 gpBitmapInfo->bmiHeader.biCompression = BI_RGB;
262 }
263 } else { // 24 bpp
264 gpBitmapInfo->bmiHeader.biBitCount = 24;
265 gpBitmapInfo->bmiHeader.biCompression = BI_RGB;
266
267 // Fill these values in as a convenience for the screen
268 // ColorModel construction code below (see getColorModel())
269 ((int *)gpBitmapInfo->bmiColors)[0] = 0x0000ff;
270 ((int *)gpBitmapInfo->bmiColors)[1] = 0x00ff00;
271 ((int *)gpBitmapInfo->bmiColors)[2] = 0xff0000;
272 }
273 } else {
274 if (MONITORINFOF_PRIMARY & pMonitorInfo->dwFlags) {
275 primaryPalettized = TRUE;
276 }
277 gpBitmapInfo->bmiHeader.biBitCount = 8;
278 gpBitmapInfo->bmiHeader.biCompression = BI_RGB;
279 gpBitmapInfo->bmiHeader.biClrUsed = 256;
280 gpBitmapInfo->bmiHeader.biClrImportant = 256;
281
282 // The initialization of cData is done prior to
283 // calling palette->Update() since we need it
284 // for calculating inverseGrayLut
285 if (cData == NULL) {
286 cData = (ColorData*)safe_Calloc(1, sizeof(ColorData));
287 memset(cData, 0, sizeof(ColorData));
288 initDitherTables(cData);
289 }
290
291 if (!palette) {
292 palette = new AwtPalette(this);
293 } else {
294 palette->Update();
295 }
296 palette->UpdateLogical();
297 }
298 VERIFY(::DeleteObject(hBM));
299 VERIFY(::DeleteDC(hBMDC));
300 }
301
302 /**
303 * Creates a new colorModel given the current device configuration.
304 * The dynamic flag determines whether we use the system palette
305 * (dynamic == TRUE) or our custom palette in creating a new
306 * IndexedColorModel.
307 */
308 jobject AwtWin32GraphicsDevice::GetColorModel(JNIEnv *env, jboolean dynamic)
309 {
310 jobject awt_colormodel;
311 int i;
312 if (colorData->bitsperpixel == 24) {
313 awt_colormodel =
314 JNU_NewObjectByName(env, "sun/awt/Win32ColorModel24", "()V");
315 } else if (colorData->bitsperpixel > 8) {
316 int *masks = (int *)gpBitmapInfo->bmiColors;
317 int numbits = 0;
318 unsigned int bits = (masks[0] | masks[1] | masks[2]);
319 while (bits) {
320 numbits++;
321 bits >>= 1;
322 }
323 awt_colormodel = JNU_NewObjectByName(env,
324 "java/awt/image/DirectColorModel",
325 "(IIII)V", numbits,
326 masks[0], masks[1], masks[2]);
327 } else if (colorData->grayscale == GS_STATICGRAY) {
328 jclass clazz;
329 jclass clazz1;
330 jmethodID mid;
331 jobject cspace = NULL;
332 jint bits[1];
333 jintArray bitsArray;
334
335 clazz1 = env->FindClass("java/awt/color/ColorSpace");
336 CHECK_NULL_RETURN(clazz1, NULL);
337 mid = env->GetStaticMethodID(clazz1, "getInstance",
338 "(I)Ljava/awt/color/ColorSpace;");
339 CHECK_NULL_RETURN(mid, NULL);
340 cspace = env->CallStaticObjectMethod(clazz1, mid,
341 java_awt_color_ColorSpace_CS_GRAY);
342 CHECK_NULL_RETURN(cspace, NULL);
343
344 bits[0] = 8;
345 bitsArray = env->NewIntArray(1);
346 if (bitsArray == 0) {
347 return NULL;
348 } else {
349 env->SetIntArrayRegion(bitsArray, 0, 1, bits);
350 }
351
352 clazz = env->FindClass("java/awt/image/ComponentColorModel");
353 CHECK_NULL_RETURN(clazz, NULL);
354 mid = env->GetMethodID(clazz,"<init>",
355 "(Ljava/awt/color/ColorSpace;[IZZII)V");
356 CHECK_NULL_RETURN(mid, NULL);
357
358 awt_colormodel = env->NewObject(clazz, mid,
359 cspace,
360 bitsArray,
361 JNI_FALSE,
362 JNI_FALSE,
363 java_awt_Transparency_OPAQUE,
364 java_awt_image_DataBuffer_TYPE_BYTE);
365 } else {
366 jintArray hRGB = env->NewIntArray(256);
367 unsigned int *rgb = NULL, *rgbP = NULL;
368 jboolean allvalid = JNI_TRUE;
369 jbyte vbits[256/8];
370 jobject validBits = NULL;
371
372 CHECK_NULL_RETURN(hRGB, NULL);
373 /* Create the LUT from the color map */
374 try {
375 rgb = (unsigned int *) env->GetPrimitiveArrayCritical(hRGB, 0);
376 CHECK_NULL_RETURN(rgb, NULL);
377 rgbP = rgb;
378 if (!palette) {
379 palette = new AwtPalette(this);
380 palette->UpdateLogical();
381 }
382 if (colorData->grayscale == GS_INDEXGRAY) {
383 /* For IndexColorModel, pretend first 10 colors and last
384 10 colors are transparent black. This makes
385 ICM.allgrayopaque true.
386 */
387 unsigned int *logicalEntries = palette->GetLogicalEntries();
388
389 for (i=0; i < 10; i++) {
390 rgbP[i] = 0x00000000;
391 rgbP[i+246] = 0x00000000;
392 }
393 memcpy(&rgbP[10], &logicalEntries[10], 236 * sizeof(RGBQUAD));
394 // We need to specify which entries in the colormap are
395 // valid so that the transparent black entries we have
396 // created do not affect the Transparency setting of the
397 // IndexColorModel. The vbits array is used to construct
398 // a BigInteger such that the most significant bit of vbits[0]
399 // indicates the validity of the last color (#256) and the
400 // least significant bit of vbits[256/8] indicates the
401 // validity of the first color (#0). We need to fill vbits
402 // with all 1's and then turn off the first and last 10 bits.
403 memset(vbits, 0xff, sizeof(vbits));
404 vbits[0] = 0;
405 vbits[1] = (jbyte) (0xff >> 2);
406 vbits[sizeof(vbits)-2] = (jbyte) (0xff << 2);
407 vbits[sizeof(vbits)-1] = 0;
408 allvalid = JNI_FALSE;
409 } else {
410 if (AwtPalette::UseCustomPalette() && !dynamic) {
411 // If we plan to use our custom palette (i.e., we are
412 // not running inside another app and we are not creating
413 // a dynamic colorModel object), then setup ICM with
414 // custom palette entries
415 unsigned int *logicalEntries = palette->GetLogicalEntries();
416 memcpy(rgbP, logicalEntries, 256 * sizeof(int));
417 } else {
418 // Else, use current system palette entries.
419 // REMIND: This may not give the result we want if
420 // we are running inside another app and that
421 // parent app is running in the background when we
422 // reach here. We could at least cache an "ideal" set of
423 // system palette entries from the first time we are
424 // running in the foreground and then future ICM's will
425 // use that set instead.
426 unsigned int *systemEntries = palette->GetSystemEntries();
427 memcpy(rgbP, systemEntries, 256 * sizeof(int));
428 }
429 }
430 } catch (...) {
431 env->ReleasePrimitiveArrayCritical(hRGB, rgb, 0);
432 throw;
433 }
434
435 env->ReleasePrimitiveArrayCritical(hRGB, rgb, 0);
436
437 // Construct a new color model
438 if (!allvalid) {
439 jbyteArray bArray = env->NewByteArray(sizeof(vbits));
440 CHECK_NULL_RETURN(bArray, NULL);
441 env->SetByteArrayRegion(bArray, 0, sizeof(vbits), vbits);
442 validBits = JNU_NewObjectByName(env,
443 "java/math/BigInteger",
444 "([B)V", bArray);
445 JNU_CHECK_EXCEPTION_RETURN(env, NULL);
446 }
447 awt_colormodel =
448 JNU_NewObjectByName(env,
449 "java/awt/image/IndexColorModel",
450 "(II[IIILjava/math/BigInteger;)V",
451 8, 256,
452 hRGB, 0,
453 java_awt_image_DataBuffer_TYPE_BYTE,
454 validBits);
455 }
456 return awt_colormodel;
457 }
458
459 /**
460 * Called from AwtPalette code when it is determined what grayscale
461 * value (if any) the current logical palette has
462 */
463 void AwtWin32GraphicsDevice::SetGrayness(int grayValue)
464 {
465 colorData->grayscale = grayValue;
466 }
467
468
469 /**
470 * Update our dynamic IndexedColorModel. This happens after
471 * a change to the system palette. Any surfaces stored in vram
472 * (Win32OffScreenSurfaceData and GDIWindowSurfaceData objects)
473 * refer to this colorModel and use its lookup table and inverse
474 * lookup to calculate correct index values for rgb colors. So
475 * the colorModel must always reflect the current state of the
476 * system palette.
477 */
478 void AwtWin32GraphicsDevice::UpdateDynamicColorModel()
479 {
480 if (!javaDevice) {
481 // javaDevice may not be set yet. If not, return. In
482 // this situation, we probably don't need an update anyway
483 // since the colorModel will be created with the correct
484 // info when the java side is initialized.
485 return;
486 }
487 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
488 jobject colorModel = env->GetObjectField(javaDevice,
489 dynamicColorModelID);
490 if (!colorModel) {
491 return;
492 }
493 if (env->IsInstanceOf(colorModel, indexCMClass)) {
494 // If colorModel not of type ICM then we're not in 8-bit mode and
495 // don't need to update it
496 jboolean isCopy;
497 unsigned int *newEntries = palette->GetSystemEntries();
498 jintArray rgbArray = (jintArray)env->GetObjectField(colorModel,
499 AwtWin32GraphicsDevice::indexCMrgbID);
500 jintArray cacheArray = (jintArray)env->GetObjectField(colorModel,
501 AwtWin32GraphicsDevice::indexCMcacheID);
502 if (!rgbArray || !cacheArray) {
503 JNU_ThrowInternalError(env, "rgb or lookupcache array of IndexColorModel null");
504 return;
505 }
506 int rgbLength = env->GetArrayLength(rgbArray);
507 int cacheLength = env->GetArrayLength(cacheArray);
508 jint *cmEntries = (jint *)env->GetPrimitiveArrayCritical(rgbArray, &isCopy);
509 if (!cmEntries) {
510 env->ExceptionClear();
511 JNU_ThrowInternalError(env, "Problem retrieving rgb critical array");
512 return;
513 }
514 jint *cache = (jint *)env->GetPrimitiveArrayCritical(cacheArray, &isCopy);
515 if (!cache) {
516 env->ExceptionClear();
517 env->ReleasePrimitiveArrayCritical(rgbArray, cmEntries, JNI_ABORT);
518 JNU_ThrowInternalError(env, "Problem retrieving cache critical array");
519 return;
520 }
521 // Set the new rgb values
522 int i;
523 for (i = 0; i < rgbLength; ++i) {
524 cmEntries[i] = newEntries[i];
525 }
526 // clear out the old cache
527 for (i = 0; i < cacheLength; ++i) {
528 cache[i] = 0;
529 }
530 env->ReleasePrimitiveArrayCritical(cacheArray, cache, 0);
531 env->ReleasePrimitiveArrayCritical(rgbArray, cmEntries, 0);
532
533 // Call WToolkit::paletteChanged() method; this will invalidate
534 // the offscreen surfaces dependent on this dynamic colorModel
535 // to ensure that they get redrawn with the correct color indices
536 env->CallStaticVoidMethod(AwtWin32GraphicsDevice::wToolkitClass,
537 paletteChangedMID);
538 }
539 }
540
541 unsigned int *AwtWin32GraphicsDevice::GetSystemPaletteEntries()
542 {
543 // REMIND: What to do if palette NULL? Need to throw
544 // some kind of exception?
545 return palette->GetSystemEntries();
546 }
547
548 unsigned char *AwtWin32GraphicsDevice::GetSystemInverseLUT()
549 {
550 // REMIND: What to do if palette NULL? Need to throw
551 // some kind of exception?
552 return palette->GetSystemInverseLUT();
553 }
554
555
556 BOOL AwtWin32GraphicsDevice::UpdateSystemPalette()
557 {
558 if (colorData->bitsperpixel > 8) {
559 return FALSE;
560 } else {
561 return palette->Update();
562 }
563 }
564
565 HPALETTE AwtWin32GraphicsDevice::SelectPalette(HDC hDC)
566 {
567 if (palette) {
568 return palette->Select(hDC);
569 } else {
570 return NULL;
571 }
572 }
573
574 void AwtWin32GraphicsDevice::RealizePalette(HDC hDC)
575 {
576 if (palette) {
577 palette->Realize(hDC);
578 }
579 }
580
581 /**
582 * Deterine which device the HWND exists on and return the
583 * appropriate index into the devices array.
584 */
585 int AwtWin32GraphicsDevice::DeviceIndexForWindow(HWND hWnd)
586 {
587 HMONITOR mon = MonitorFromWindow(hWnd, MONITOR_DEFAULTTONEAREST);
588 int screen = AwtWin32GraphicsDevice::GetScreenFromHMONITOR(mon);
589 return screen;
590 }
591
592 /**
593 * Get the HPALETTE associated with this device
594 */
595 HPALETTE AwtWin32GraphicsDevice::GetPalette()
596 {
597 if (palette) {
598 return palette->GetPalette();
599 } else {
600 return NULL;
601 }
602 }
603
604 /**
605 * Object referring to this device is releasing that reference.
606 * This allows the array holding all devices to be released (once
607 * all references to the array have gone away).
608 */
609 void AwtWin32GraphicsDevice::Release()
610 {
611 devicesArray->Release();
612 }
613
614 /**
615 * Links this native object with its java Win32GraphicsDevice.
616 * Need this link because the colorModel of the java device
617 * may be updated from native code.
618 */
619 void AwtWin32GraphicsDevice::SetJavaDevice(JNIEnv *env, jobject objPtr)
620 {
621 javaDevice = env->NewWeakGlobalRef(objPtr);
622 }
623
624 /**
625 * Sets horizontal and vertical scale factors
626 */
627 void AwtWin32GraphicsDevice::SetScale(float sx, float sy)
628 {
629 scaleX = sx;
630 scaleY = sy;
631 }
632
633 int AwtWin32GraphicsDevice::ScaleUpX(int x)
634 {
635 return (int)ceil(x * scaleX);
636 }
637
638 int AwtWin32GraphicsDevice::ScaleUpY(int y)
639 {
640 return (int)ceil(y * scaleY);
641 }
642
643 int AwtWin32GraphicsDevice::ScaleDownX(int x)
644 {
645 return (int)ceil(x / scaleX);
646 }
647
648 int AwtWin32GraphicsDevice::ScaleDownY(int y)
649 {
650 return (int)ceil(y / scaleY);
651 }
652
653 void AwtWin32GraphicsDevice::InitDesktopScales()
654 {
655 float dpiX = -1.0f;
656 float dpiY = -1.0f;
657 GetScreenDpi(GetMonitor(), &dpiX, &dpiY);
658 if (dpiX > 0 && dpiY > 0) {
659 SetScale(dpiX / 96, dpiY / 96);
660 }
661 }
662
663 float AwtWin32GraphicsDevice::GetScaleX()
664 {
665 return scaleX;
666 }
667
668 float AwtWin32GraphicsDevice::GetScaleY()
669 {
670 return scaleY;
671 }
672
673 /**
674 * Disables offscreen acceleration for this device. This
675 * sets a flag in the java object that is used to determine
676 * whether offscreen surfaces can be created on the device.
677 */
678 void AwtWin32GraphicsDevice::DisableOffscreenAcceleration()
679 {
680 // REMIND: noop for now
681 }
682
683 /**
684 * Invalidates the GraphicsDevice object associated with this
685 * device by disabling offscreen acceleration and calling
686 * invalidate(defIndex) on the java object.
687 */
688 void AwtWin32GraphicsDevice::Invalidate(JNIEnv *env)
689 {
690 int defIndex = AwtWin32GraphicsDevice::GetDefaultDeviceIndex();
691 DisableOffscreenAcceleration();
692 jobject javaDevice = GetJavaDevice();
693 if (!JNU_IsNull(env, javaDevice)) {
694 JNU_CallMethodByName(env, NULL, javaDevice, "invalidate",
695 "(I)V", defIndex);
696 }
697 }
698
699 /**
700 * Static deviceIndex-based methods
701 *
702 * The following methods take a deviceIndex for the list of devices
703 * and perform the appropriate action on that device. This way of
704 * dereferencing the list of devices allows us to do appropriate
705 * locks around the list to ensure multi-threaded safety.
706 */
707
708
709 jobject AwtWin32GraphicsDevice::GetColorModel(JNIEnv *env, jboolean dynamic,
710 int deviceIndex)
711 {
712 Devices::InstanceAccess devices;
713 return devices->GetDevice(deviceIndex)->GetColorModel(env, dynamic);
714 }
715
716 LPMONITORINFO AwtWin32GraphicsDevice::GetMonitorInfo(int deviceIndex)
717 {
718 Devices::InstanceAccess devices;
719 return devices->GetDevice(deviceIndex)->GetMonitorInfo();
720 }
721
722 /**
723 * This function updates the data in the MONITORINFOEX structure pointed to by
724 * pMonitorInfo for all monitors on the system. Added for 4654713.
725 */
726 void AwtWin32GraphicsDevice::ResetAllMonitorInfo()
727 {
728 //IE in some circumstances generates WM_SETTINGCHANGE message on appearance
729 //and thus triggers this method
730 //but we may not have the devices list initialized yet.
731 if (!Devices::GetInstance()){
732 return;
733 }
734 Devices::InstanceAccess devices;
735 int devicesNum = devices->GetNumDevices();
736 for (int deviceIndex = 0; deviceIndex < devicesNum; deviceIndex++) {
737 HMONITOR monitor = devices->GetDevice(deviceIndex)->GetMonitor();
738 ::GetMonitorInfo(monitor,
739 devices->GetDevice(deviceIndex)->pMonitorInfo);
740 }
741 }
742
743 void AwtWin32GraphicsDevice::DisableOffscreenAccelerationForDevice(
744 HMONITOR hMonitor)
745 {
746 Devices::InstanceAccess devices;
747 if (hMonitor == NULL) {
748 devices->GetDevice(0)->DisableOffscreenAcceleration();
749 } else {
750 int devicesNum = devices->GetNumDevices();
751 for (int i = 0; i < devicesNum; ++i) {
752 if (devices->GetDevice(i)->GetMonitor() == hMonitor) {
753 devices->GetDevice(i)->DisableOffscreenAcceleration();
754 }
755 }
756 }
757 }
758
759 HMONITOR AwtWin32GraphicsDevice::GetMonitor(int deviceIndex)
760 {
761 Devices::InstanceAccess devices;
762 return devices->GetDevice(deviceIndex)->GetMonitor();
763 }
764
765 HPALETTE AwtWin32GraphicsDevice::GetPalette(int deviceIndex)
766 {
767 Devices::InstanceAccess devices;
768 return devices->GetDevice(deviceIndex)->GetPalette();
769 }
770
771 void AwtWin32GraphicsDevice::UpdateDynamicColorModel(int deviceIndex)
772 {
773 Devices::InstanceAccess devices;
774 devices->GetDevice(deviceIndex)->UpdateDynamicColorModel();
775 }
776
777 BOOL AwtWin32GraphicsDevice::UpdateSystemPalette(int deviceIndex)
778 {
779 Devices::InstanceAccess devices;
780 return devices->GetDevice(deviceIndex)->UpdateSystemPalette();
781 }
782
783 HPALETTE AwtWin32GraphicsDevice::SelectPalette(HDC hDC, int deviceIndex)
784 {
785 Devices::InstanceAccess devices;
786 return devices->GetDevice(deviceIndex)->SelectPalette(hDC);
787 }
788
789 void AwtWin32GraphicsDevice::RealizePalette(HDC hDC, int deviceIndex)
790 {
791 Devices::InstanceAccess devices;
792 devices->GetDevice(deviceIndex)->RealizePalette(hDC);
793 }
794
795 ColorData *AwtWin32GraphicsDevice::GetColorData(int deviceIndex)
796 {
797 Devices::InstanceAccess devices;
798 return devices->GetDevice(deviceIndex)->GetColorData();
799 }
800
801 /**
802 * Return the grayscale value for the indicated device.
803 */
804 int AwtWin32GraphicsDevice::GetGrayness(int deviceIndex)
805 {
806 Devices::InstanceAccess devices;
807 return devices->GetDevice(deviceIndex)->GetGrayness();
808 }
809
810 HDC AwtWin32GraphicsDevice::GetDCFromScreen(int screen) {
811 J2dTraceLn1(J2D_TRACE_INFO,
812 "AwtWin32GraphicsDevice::GetDCFromScreen screen=%d", screen);
813 Devices::InstanceAccess devices;
814 AwtWin32GraphicsDevice *dev = devices->GetDevice(screen);
815 return MakeDCFromMonitor(dev->GetMonitor());
816 }
817
818 /** Compare elements of MONITORINFOEX structures for the given HMONITORs.
819 * If equal, return TRUE
820 */
821 BOOL AwtWin32GraphicsDevice::AreSameMonitors(HMONITOR mon1, HMONITOR mon2) {
822 J2dTraceLn2(J2D_TRACE_INFO,
823 "AwtWin32GraphicsDevice::AreSameMonitors mhnd1=%x mhnd2=%x",
824 mon1, mon2);
825 DASSERT(mon1 != NULL);
826 DASSERT(mon2 != NULL);
827
828 MONITORINFOEX mi1;
829 MONITORINFOEX mi2;
830
831 memset((void*)(&mi1), 0, sizeof(MONITORINFOEX));
832 mi1.cbSize = sizeof(MONITORINFOEX);
833 memset((void*)(&mi2), 0, sizeof(MONITORINFOEX));
834 mi2.cbSize = sizeof(MONITORINFOEX);
835
836 if (::GetMonitorInfo(mon1, &mi1) != 0 &&
837 ::GetMonitorInfo(mon2, &mi2) != 0 )
838 {
839 if (::EqualRect(&mi1.rcMonitor, &mi2.rcMonitor) &&
840 ::EqualRect(&mi1.rcWork, &mi2.rcWork) &&
841 (mi1.dwFlags == mi1.dwFlags))
842 {
843
844 J2dTraceLn(J2D_TRACE_VERBOSE, " the monitors are the same");
845 return TRUE;
846 }
847 }
848 J2dTraceLn(J2D_TRACE_VERBOSE, " the monitors are not the same");
849 return FALSE;
850 }
851
852 int AwtWin32GraphicsDevice::GetScreenFromHMONITOR(HMONITOR mon) {
853 J2dTraceLn1(J2D_TRACE_INFO,
854 "AwtWin32GraphicsDevice::GetScreenFromHMONITOR mhnd=%x", mon);
855
856 DASSERT(mon != NULL);
857 JNIEnv *env = (JNIEnv*) JNU_GetEnv(jvm, JNI_VERSION_1_2);
858 if (!Devices::GetInstance()) {
859 Devices::UpdateInstance(env);
860 }
861 Devices::InstanceAccess devices;
862
863 for (int i = 0; i < devices->GetNumDevices(); i++) {
864 HMONITOR mhnd = devices->GetDevice(i)->GetMonitor();
865 if (AreSameMonitors(mon, mhnd)) {
866 J2dTraceLn1(J2D_TRACE_VERBOSE, " Found device: %d", i);
867 return i;
868 }
869 }
870
871 J2dTraceLn1(J2D_TRACE_WARNING,
872 "AwtWin32GraphicsDevice::GetScreenFromHMONITOR(): "\
873 "couldn't find screen for HMONITOR %x, returning default", mon);
874 return AwtWin32GraphicsDevice::GetDefaultDeviceIndex();
875 }
876
877
878 /**
879 * End of static deviceIndex-based methods
880 */
881
882
883 const DWORD REQUIRED_FLAGS = ( //Flags which must be set in
884 PFD_SUPPORT_GDI | //in the PixelFormatDescriptor.
885 PFD_DRAW_TO_WINDOW); //Used to choose the default config
886 //and to check formats in
887 //isPixFmtSupported()
888 extern "C" {
889
890 JNIEXPORT void JNICALL
891 Java_sun_awt_Win32GraphicsDevice_initIDs(JNIEnv *env, jclass cls)
892 {
893 TRY;
894
895 /* class ids */
896 jclass iCMClass = env->FindClass("java/awt/image/IndexColorModel");
897 CHECK_NULL(iCMClass);
898 AwtWin32GraphicsDevice::indexCMClass = (jclass) env->NewGlobalRef(iCMClass);
899 env->DeleteLocalRef(iCMClass);
900 DASSERT(AwtWin32GraphicsDevice::indexCMClass);
901 CHECK_NULL(AwtWin32GraphicsDevice::indexCMClass);
902
903 jclass wTClass = env->FindClass("sun/awt/windows/WToolkit");
904 CHECK_NULL(wTClass);
905 AwtWin32GraphicsDevice::wToolkitClass = (jclass)env->NewGlobalRef(wTClass);
906 env->DeleteLocalRef(wTClass);
907 DASSERT(AwtWin32GraphicsDevice::wToolkitClass);
908 CHECK_NULL(AwtWin32GraphicsDevice::wToolkitClass);
909
910 /* field ids */
911 AwtWin32GraphicsDevice::dynamicColorModelID = env->GetFieldID(cls,
912 "dynamicColorModel", "Ljava/awt/image/ColorModel;");
913 DASSERT(AwtWin32GraphicsDevice::dynamicColorModelID);
914 CHECK_NULL(AwtWin32GraphicsDevice::dynamicColorModelID);
915
916 AwtWin32GraphicsDevice::indexCMrgbID =
917 env->GetFieldID(AwtWin32GraphicsDevice::indexCMClass, "rgb", "[I");
918 DASSERT(AwtWin32GraphicsDevice::indexCMrgbID);
919 CHECK_NULL(AwtWin32GraphicsDevice::indexCMrgbID);
920
921 AwtWin32GraphicsDevice::indexCMcacheID =
922 env->GetFieldID(AwtWin32GraphicsDevice::indexCMClass,
923 "lookupcache", "[I");
924 DASSERT(AwtWin32GraphicsDevice::indexCMcacheID);
925 CHECK_NULL(AwtWin32GraphicsDevice::indexCMcacheID);
926
927 /* method ids */
928 AwtWin32GraphicsDevice::paletteChangedMID = env->GetStaticMethodID(
929 AwtWin32GraphicsDevice::wToolkitClass, "paletteChanged", "()V");
930 DASSERT(AwtWin32GraphicsDevice::paletteChangedMID);
931 CHECK_NULL(AwtWin32GraphicsDevice::paletteChangedMID);
932
933 // Only want to call this once per session
934 make_uns_ordered_dither_array(img_oda_alpha, 256);
935
936 // workaround JDK-6477756, ignore return value to keep dll in memory
937 JDK_LoadSystemLibrary("opengl32.dll");
938
939 CATCH_BAD_ALLOC;
940 }
941
942 } /* extern "C" */
943
944
945 /*
946 * Class: sun_awt_Win32GraphicsDevice
947 * Method: getMaxConfigsImpl
948 * Signature: ()I
949 */
950
951 JNIEXPORT jint JNICALL Java_sun_awt_Win32GraphicsDevice_getMaxConfigsImpl
952 (JNIEnv* jniEnv, jobject theThis, jint screen) {
953 TRY;
954 HDC hDC = AwtWin32GraphicsDevice::GetDCFromScreen(screen);
955
956 PIXELFORMATDESCRIPTOR pfd;
957 int max = ::DescribePixelFormat(hDC, 1, sizeof(PIXELFORMATDESCRIPTOR),
958 &pfd);
959 if (hDC != NULL) {
960 VERIFY(::DeleteDC(hDC));
961 hDC = NULL;
962 }
963 //If ::DescribePixelFormat() fails, max = 0
964 //In this case, we return 1 config with visual number 0
965 if (max == 0) {
966 max = 1;
967 }
968 return (jint)max;
969 CATCH_BAD_ALLOC_RET(0);
970 }
971
972 /*
973 * Class: sun_awt_Win32GraphicsDevice
974 * Method: isPixFmtSupported
975 * Signature: (I)Z
976 */
977
978 JNIEXPORT jboolean JNICALL Java_sun_awt_Win32GraphicsDevice_isPixFmtSupported
979 (JNIEnv* env, jobject theThis, jint pixFmtID, jint screen) {
980 TRY;
981 jboolean suppColor = JNI_TRUE;
982 HDC hDC = AwtWin32GraphicsDevice::GetDCFromScreen(screen);
983
984 if (pixFmtID == 0) {
985 return true;
986 }
987
988 PIXELFORMATDESCRIPTOR pfd;
989 int max = ::DescribePixelFormat(hDC, (int)pixFmtID,
990 sizeof(PIXELFORMATDESCRIPTOR), &pfd);
991 DASSERT(max);
992
993 //Check for supported ColorModel
994 if ((pfd.cColorBits < 8) ||
995 ((pfd.cColorBits == 8) && (pfd.iPixelType != PFD_TYPE_COLORINDEX))) {
996 //Note: this still allows for PixelFormats with > 8 color bits
997 //which use COLORINDEX instead of RGB. This seems to work fine,
998 //although issues may crop up involving PFD_NEED_PALETTE, which
999 //is not currently taken into account.
1000 //If changes are made, they should also be reflected in
1001 //getDefaultPixID.
1002 suppColor = JNI_FALSE;
1003 }
1004
1005 if (hDC != NULL) {
1006 VERIFY(::DeleteDC(hDC));
1007 hDC = NULL;
1008 }
1009 return (((pfd.dwFlags & REQUIRED_FLAGS) == REQUIRED_FLAGS) && suppColor) ?
1010 JNI_TRUE : JNI_FALSE;
1011 CATCH_BAD_ALLOC_RET(FALSE);
1012 }
1013
1014 /*
1015 * Class: sun_awt_Win32GraphicsDevice
1016 * Method: getDefaultPixIDImpl
1017 * Signature: (I)I
1018 */
1019
1020 JNIEXPORT jint JNICALL Java_sun_awt_Win32GraphicsDevice_getDefaultPixIDImpl
1021 (JNIEnv* env, jobject theThis, jint screen) {
1022 TRY;
1023 int pixFmtID = 0;
1024 HDC hDC = AwtWin32GraphicsDevice::GetDCFromScreen(screen);
1025
1026 PIXELFORMATDESCRIPTOR pfd = {
1027 sizeof(PIXELFORMATDESCRIPTOR),
1028 1, //version
1029 REQUIRED_FLAGS, //flags
1030 0, //iPixelType
1031 0, //cColorBits
1032 0,0,0,0,0,0,0,0, //cRedBits, cRedShift, green, blue, alpha
1033 0,0,0,0,0, //cAccumBits, cAccumRedBits, green, blue, alpha
1034 0,0,0,0,0,0,0,0 //etc.
1035 };
1036
1037 //If 8-bit mode, must use Indexed mode
1038 if (8 == ::GetDeviceCaps(hDC, BITSPIXEL)) {
1039 pfd.iPixelType = PFD_TYPE_COLORINDEX;
1040 }
1041
1042 pixFmtID = ::ChoosePixelFormat(hDC, &pfd);
1043 if (pixFmtID == 0) {
1044 //Return 0 if GDI call fails.
1045 if (hDC != NULL) {
1046 VERIFY(::DeleteDC(hDC));
1047 hDC = NULL;
1048 }
1049 return pixFmtID;
1050 }
1051
1052 if (JNI_FALSE == Java_sun_awt_Win32GraphicsDevice_isPixFmtSupported(
1053 env, theThis, pixFmtID, screen)) {
1054 /* Can't find a suitable pixel format ID. Fall back on 0. */
1055 pixFmtID = 0;
1056 }
1057
1058 VERIFY(::DeleteDC(hDC));
1059 hDC = NULL;
1060 return (jint)pixFmtID;
1061 CATCH_BAD_ALLOC_RET(0);
1062 }
1063
1064 /*
1065 * Class: sun_awt_Win32GraphicsDevice
1066 * Method: enterFullScreenExclusive
1067 * Signature: (Ljava/awt/peer/WindowPeer;)V
1068 */
1069
1070 JNIEXPORT void JNICALL
1071 Java_sun_awt_Win32GraphicsDevice_enterFullScreenExclusive(
1072 JNIEnv* env, jobject graphicsDevice,
1073 jint screen, jobject windowPeer) {
1074
1075 TRY;
1076
1077 PDATA pData;
1078 JNI_CHECK_PEER_RETURN(windowPeer);
1079
1080 AwtWindow *window = (AwtWindow *)pData; // safe cast since we are called
1081 // with the WWindowPeer object
1082 HWND hWnd = window->GetHWnd();
1083
1084 if (!::SetWindowPos(hWnd, HWND_TOPMOST, 0, 0, 0, 0,
1085 SWP_NOMOVE|SWP_NOOWNERZORDER|SWP_NOSIZE))
1086 {
1087 J2dTraceLn1(J2D_TRACE_ERROR,
1088 "Error %d setting topmost attribute to fs window",
1089 ::GetLastError());
1090 }
1091
1092 CATCH_BAD_ALLOC;
1093 }
1094
1095 /*
1096 * Class: sun_awt_Win32GraphicsDevice
1097 * Method: exitFullScreenExclusive
1098 * Signature: (Ljava/awt/peer/WindowPeer;)V
1099 */
1100
1101 JNIEXPORT void JNICALL
1102 Java_sun_awt_Win32GraphicsDevice_exitFullScreenExclusive(
1103 JNIEnv* env, jobject graphicsDevice,
1104 jint screen, jobject windowPeer) {
1105
1106 TRY;
1107
1108 PDATA pData;
1109 JNI_CHECK_PEER_RETURN(windowPeer);
1110
1111 AwtWindow *window = (AwtWindow *)pData; // safe cast since we are called
1112 // with the WWindowPeer object
1113 HWND hWnd = window->GetHWnd();
1114
1115 jobject target = env->GetObjectField(windowPeer, AwtObject::targetID);
1116 jboolean alwaysOnTop = JNU_GetFieldByName(env, NULL, target, "alwaysOnTop", "Z").z;
1117 env->DeleteLocalRef(target);
1118
1119 if (!::SetWindowPos(hWnd, HWND_NOTOPMOST, 0, 0, 0, 0,
1120 SWP_NOMOVE|SWP_NOOWNERZORDER|SWP_NOSIZE))
1121 {
1122 J2dTraceLn1(J2D_TRACE_ERROR,
1123 "Error %d unsetting topmost attribute to fs window",
1124 ::GetLastError());
1125 }
1126
1127 // We should restore alwaysOnTop state as it's anyway dropped here
1128 Java_sun_awt_windows_WWindowPeer_setAlwaysOnTopNative(env, windowPeer, alwaysOnTop);
1129
1130 CATCH_BAD_ALLOC;
1131 }
1132
1133 jobject CreateDisplayMode(JNIEnv* env, jint width, jint height,
1134 jint bitDepth, jint refreshRate) {
1135
1136 TRY;
1137
1138 jclass displayModeClass = env->FindClass("java/awt/DisplayMode");
1139 if (JNU_IsNull(env, displayModeClass)) {
1140 env->ExceptionClear();
1141 JNU_ThrowInternalError(env, "Could not get display mode class");
1142 return NULL;
1143 }
1144
1145 jmethodID cid = env->GetMethodID(displayModeClass, "<init>", "(IIII)V");
1146 if (cid == NULL) {
1147 env->ExceptionClear();
1148 JNU_ThrowInternalError(env, "Could not get display mode constructor");
1149 return NULL;
1150 }
1151
1152 jobject displayMode = env->NewObject(displayModeClass, cid, width,
1153 height, bitDepth, refreshRate);
1154 return displayMode;
1155
1156 CATCH_BAD_ALLOC_RET(NULL);
1157 }
1158
1159 /**
1160 * A utility function which retrieves a DISPLAY_DEVICE information
1161 * given a screen number.
1162 *
1163 * If the function was able to find an attached device for the given screen
1164 * number, the lpDisplayDevice will be initialized with the data and
1165 * the function will return TRUE, otherwise it returns FALSE and contents
1166 * of the structure pointed to by lpDisplayDevice is undefined.
1167 */
1168 static BOOL
1169 GetAttachedDisplayDevice(int screen, DISPLAY_DEVICE *lpDisplayDevice)
1170 {
1171 DWORD dwDeviceNum = 0;
1172 lpDisplayDevice->cb = sizeof(DISPLAY_DEVICE);
1173 while (EnumDisplayDevices(NULL, dwDeviceNum, lpDisplayDevice, 0) &&
1174 dwDeviceNum < 20) // avoid infinite loop with buggy drivers
1175 {
1176 if (lpDisplayDevice->StateFlags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP) {
1177 Devices::InstanceAccess devices;
1178 MONITORINFOEX *pMonInfo =
1179 (LPMONITORINFOEX)devices->GetDevice(screen)->GetMonitorInfo();
1180 // make sure the device names match
1181 if (wcscmp(pMonInfo->szDevice, lpDisplayDevice->DeviceName) == 0) {
1182 return TRUE;
1183 }
1184 }
1185 dwDeviceNum++;
1186 }
1187 return FALSE;
1188 }
1189
1190 /*
1191 * Class: sun_awt_Win32GraphicsDevice
1192 * Method: getCurrentDisplayMode
1193 * Signature: (IZ)Ljava/awt/DisplayMode;
1194 */
1195 JNIEXPORT jobject JNICALL
1196 Java_sun_awt_Win32GraphicsDevice_getCurrentDisplayMode
1197 (JNIEnv* env, jobject graphicsDevice, jint screen)
1198 {
1199 TRY;
1200
1201 DEVMODE dm;
1202 LPTSTR pName = NULL;
1203
1204 dm.dmSize = sizeof(dm);
1205 dm.dmDriverExtra = 0;
1206
1207 DISPLAY_DEVICE displayDevice;
1208 if (GetAttachedDisplayDevice(screen, &displayDevice)) {
1209 pName = displayDevice.DeviceName;
1210 }
1211 if (!EnumDisplaySettings(pName, ENUM_CURRENT_SETTINGS, &dm))
1212 {
1213 return NULL;
1214 }
1215
1216 return CreateDisplayMode(env, dm.dmPelsWidth,
1217 dm.dmPelsHeight, dm.dmBitsPerPel, dm.dmDisplayFrequency);
1218
1219 CATCH_BAD_ALLOC_RET(NULL);
1220 }
1221
1222 /*
1223 * Class: sun_awt_Win32GraphicsDevice
1224 * Method: configDisplayMode
1225 * Signature: (IIIIZ)V
1226 */
1227 JNIEXPORT void JNICALL
1228 Java_sun_awt_Win32GraphicsDevice_configDisplayMode
1229 (JNIEnv* env, jobject graphicsDevice, jint screen, jobject windowPeer,
1230 jint width, jint height, jint bitDepth, jint refreshRate)
1231 {
1232 TRY;
1233
1234 DEVMODE dm;
1235
1236 dm.dmSize = sizeof(dm);
1237 dm.dmDriverExtra = 0;
1238 dm.dmPelsWidth = width;
1239 dm.dmPelsHeight = height;
1240 dm.dmBitsPerPel = bitDepth;
1241 dm.dmDisplayFrequency = refreshRate;
1242 dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT |
1243 DM_BITSPERPEL | DM_DISPLAYFREQUENCY;
1244
1245 // ChangeDisplaySettings works only on the primary screen.
1246 // ChangeDisplaySettingsEx is not available on NT,
1247 // so it'd be nice not to break it if we can help it.
1248 if (screen == AwtWin32GraphicsDevice::GetDefaultDeviceIndex()) {
1249 if (::ChangeDisplaySettings(&dm, CDS_FULLSCREEN) !=
1250 DISP_CHANGE_SUCCESSFUL)
1251 {
1252 JNU_ThrowInternalError(env,
1253 "Could not set display mode");
1254 }
1255 return;
1256 }
1257
1258 DISPLAY_DEVICE displayDevice;
1259 if (!GetAttachedDisplayDevice(screen, &displayDevice) ||
1260 (::ChangeDisplaySettingsEx(displayDevice.DeviceName, &dm, NULL, CDS_FULLSCREEN, NULL) !=
1261 DISP_CHANGE_SUCCESSFUL))
1262 {
1263 JNU_ThrowInternalError(env,
1264 "Could not set display mode");
1265 }
1266
1267 CATCH_BAD_ALLOC;
1268 }
1269
1270 class EnumDisplayModeParam {
1271 public:
1272 EnumDisplayModeParam(JNIEnv* e, jobject a) : env(e), arrayList(a) {}
1273 JNIEnv* env;
1274 jobject arrayList;
1275 };
1276
1277 void addDisplayMode(JNIEnv* env, jobject arrayList, jint width,
1278 jint height, jint bitDepth, jint refreshRate) {
1279
1280 TRY;
1281
1282 jobject displayMode = CreateDisplayMode(env, width, height,
1283 bitDepth, refreshRate);
1284 if (!JNU_IsNull(env, displayMode)) {
1285 jclass arrayListClass = env->GetObjectClass(arrayList);
1286 if (JNU_IsNull(env, arrayListClass)) {
1287 JNU_ThrowInternalError(env,
1288 "Could not get class java.util.ArrayList");
1289 return;
1290 }
1291 jmethodID mid = env->GetMethodID(arrayListClass, "add",
1292 "(Ljava/lang/Object;)Z");
1293 if (mid == NULL) {
1294 env->ExceptionClear();
1295 JNU_ThrowInternalError(env,
1296 "Could not get method java.util.ArrayList.add()");
1297 return;
1298 }
1299 env->CallObjectMethod(arrayList, mid, displayMode);
1300 env->DeleteLocalRef(displayMode);
1301 }
1302
1303 CATCH_BAD_ALLOC;
1304 }
1305
1306 /*
1307 * Class: sun_awt_Win32GraphicsDevice
1308 * Method: enumDisplayModes
1309 * Signature: (Ljava/util/ArrayList;Z)V
1310 */
1311 JNIEXPORT void JNICALL Java_sun_awt_Win32GraphicsDevice_enumDisplayModes
1312 (JNIEnv* env, jobject graphicsDevice, jint screen, jobject arrayList)
1313 {
1314
1315 TRY;
1316
1317 DEVMODE dm;
1318 LPTSTR pName = NULL;
1319 DISPLAY_DEVICE displayDevice;
1320
1321
1322 if (GetAttachedDisplayDevice(screen, &displayDevice)) {
1323 pName = displayDevice.DeviceName;
1324 }
1325
1326 dm.dmSize = sizeof(dm);
1327 dm.dmDriverExtra = 0;
1328
1329 BOOL bContinue = TRUE;
1330 for (int i = 0; bContinue; i++) {
1331 bContinue = EnumDisplaySettings(pName, i, &dm);
1332 if (dm.dmBitsPerPel >= 8) {
1333 addDisplayMode(env, arrayList, dm.dmPelsWidth, dm.dmPelsHeight,
1334 dm.dmBitsPerPel, dm.dmDisplayFrequency);
1335 JNU_CHECK_EXCEPTION(env);
1336 }
1337 }
1338
1339 CATCH_BAD_ALLOC;
1340 }
1341
1342 /*
1343 * Class: sun_awt_Win32GraphicsDevice
1344 * Method: makeColorModel
1345 * Signature: ()Ljava/awt/image/ColorModel
1346 */
1347
1348 JNIEXPORT jobject JNICALL
1349 Java_sun_awt_Win32GraphicsDevice_makeColorModel
1350 (JNIEnv *env, jobject thisPtr, jint screen, jboolean dynamic)
1351 {
1352 Devices::InstanceAccess devices;
1353 return devices->GetDevice(screen)->GetColorModel(env, dynamic);
1354 }
1355
1356 /*
1357 * Class: sun_awt_Win32GraphicsDevice
1358 * Method: initDevice
1359 * Signature: (I)V
1360 */
1361 JNIEXPORT void JNICALL
1362 Java_sun_awt_Win32GraphicsDevice_initDevice
1363 (JNIEnv *env, jobject thisPtr, jint screen)
1364 {
1365 Devices::InstanceAccess devices;
1366 devices->GetDevice(screen)->SetJavaDevice(env, thisPtr);
1367 }
1368
1369 /*
1370 * Class: sun_awt_Win32GraphicsDevice
1371 * Method: setNativeScale
1372 * Signature: (I,F,F)V
1373 */
1374 JNIEXPORT void JNICALL
1375 Java_sun_awt_Win32GraphicsDevice_setNativeScale
1376 (JNIEnv *env, jobject thisPtr, jint screen, jfloat scaleX, jfloat scaleY)
1377 {
1378 Devices::InstanceAccess devices;
1379 AwtWin32GraphicsDevice *device = devices->GetDevice(screen);
1380
1381 if (device != NULL ) {
1382 device->SetScale(scaleX, scaleY);
1383 }
1384 }
1385
1386 /*
1387 * Class: sun_awt_Win32GraphicsDevice
1388 * Method: getNativeScaleX
1389 * Signature: (I)F
1390 */
1391 JNIEXPORT jfloat JNICALL
1392 Java_sun_awt_Win32GraphicsDevice_getNativeScaleX
1393 (JNIEnv *env, jobject thisPtr, jint screen)
1394 {
1395 Devices::InstanceAccess devices;
1396 AwtWin32GraphicsDevice *device = devices->GetDevice(screen);
1397 return (device == NULL) ? 1 : device->GetScaleX();
1398 }
1399
1400 /*
1401 * Class: sun_awt_Win32GraphicsDevice
1402 * Method: getNativeScaleY
1403 * Signature: (I)F
1404 */
1405 JNIEXPORT jfloat JNICALL
1406 Java_sun_awt_Win32GraphicsDevice_getNativeScaleY
1407 (JNIEnv *env, jobject thisPtr, jint screen)
1408 {
1409 Devices::InstanceAccess devices;
1410 AwtWin32GraphicsDevice *device = devices->GetDevice(screen);
1411 return (device == NULL) ? 1 : device->GetScaleY();
1412 }
1413
1414 /*
1415 * Class: sun_awt_Win32GraphicsDevice
1416 * Method: initNativeScale
1417 * Signature: (I)V;
1418 */
1419 JNIEXPORT void JNICALL
1420 Java_sun_awt_Win32GraphicsDevice_initNativeScale
1421 (JNIEnv *env, jobject thisPtr, jint screen)
1422 {
1423 Devices::InstanceAccess devices;
1424 AwtWin32GraphicsDevice *device = devices->GetDevice(screen);
1425
1426 if (device != NULL) {
1427 device->InitDesktopScales();
1428 }
1429 }
1430