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Updated MSA by putting Specification element at the end of the header section
[mirror_edk2.git] / EdkNt32Pkg / Dxe / WinNtThunk / Bus / Uga / WinNtUgaScreen.c
1 /*++
2
3 Copyright (c) 2006, Intel Corporation
4 All rights reserved. This program and the accompanying materials
5 are licensed and made available under the terms and conditions of the BSD License
6 which accompanies this distribution. The full text of the license may be found at
7 http://opensource.org/licenses/bsd-license.php
8
9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11
12 Module Name:
13
14 WinNtUgaScreen.c
15
16 Abstract:
17
18 This file produces the graphics abstration of UGA. It is called by
19 WinNtUgaDriver.c file which deals with the EFI 1.1 driver model.
20 This file just does graphics.
21
22 --*/
23
24 #include "WinNtUga.h"
25
26 EFI_WIN_NT_THUNK_PROTOCOL *mWinNt;
27 DWORD mTlsIndex = TLS_OUT_OF_INDEXES;
28 DWORD mTlsIndexUseCount = 0; // lets us know when we can free mTlsIndex.
29 static EFI_EVENT mUgaScreenExitBootServicesEvent;
30
31 EFI_STATUS
32 WinNtUgaStartWindow (
33 IN UGA_PRIVATE_DATA *Private,
34 IN UINT32 HorizontalResolution,
35 IN UINT32 VerticalResolution,
36 IN UINT32 ColorDepth,
37 IN UINT32 RefreshRate
38 );
39
40 STATIC
41 VOID
42 EFIAPI
43 KillNtUgaThread (
44 IN EFI_EVENT Event,
45 IN VOID *Context
46 );
47
48 //
49 // UGA Protocol Member Functions
50 //
51
52 EFI_STATUS
53 EFIAPI
54 WinNtUgaGetMode (
55 EFI_UGA_DRAW_PROTOCOL *This,
56 UINT32 *HorizontalResolution,
57 UINT32 *VerticalResolution,
58 UINT32 *ColorDepth,
59 UINT32 *RefreshRate
60 )
61 /*++
62
63 Routine Description:
64 Return the current video mode information.
65
66 Arguments:
67 This - Protocol instance pointer.
68 HorizontalResolution - Current video horizontal resolution in pixels
69 VerticalResolution - Current video Vertical resolution in pixels
70 ColorDepth - Current video color depth in bits per pixel
71 RefreshRate - Current video refresh rate in Hz.
72
73 Returns:
74 EFI_SUCCESS - Mode information returned.
75 EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()
76 EFI_INVALID_PARAMETER - One of the input args was NULL.
77
78 --*/
79 // TODO: ADD IN/OUT description here
80 {
81 UGA_PRIVATE_DATA *Private;
82
83 Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This);
84
85 if (Private->HardwareNeedsStarting) {
86 return EFI_NOT_STARTED;
87 }
88
89 if ((HorizontalResolution == NULL) ||
90 (VerticalResolution == NULL) ||
91 (ColorDepth == NULL) ||
92 (RefreshRate == NULL)) {
93 return EFI_INVALID_PARAMETER;
94 }
95
96 *HorizontalResolution = Private->HorizontalResolution;
97 *VerticalResolution = Private->VerticalResolution;
98 *ColorDepth = Private->ColorDepth;
99 *RefreshRate = Private->RefreshRate;
100 return EFI_SUCCESS;
101 }
102
103 EFI_STATUS
104 EFIAPI
105 WinNtUgaSetMode (
106 EFI_UGA_DRAW_PROTOCOL *This,
107 UINT32 HorizontalResolution,
108 UINT32 VerticalResolution,
109 UINT32 ColorDepth,
110 UINT32 RefreshRate
111 )
112 /*++
113
114 Routine Description:
115 Return the current video mode information.
116
117 Arguments:
118 This - Protocol instance pointer.
119 HorizontalResolution - Current video horizontal resolution in pixels
120 VerticalResolution - Current video Vertical resolution in pixels
121 ColorDepth - Current video color depth in bits per pixel
122 RefreshRate - Current video refresh rate in Hz.
123
124 Returns:
125 EFI_SUCCESS - Mode information returned.
126 EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()
127 EFI_INVALID_PARAMETER - One of the input args was NULL.
128
129 --*/
130 // TODO: EFI_DEVICE_ERROR - add return value to function comment
131 // TODO: EFI_DEVICE_ERROR - add return value to function comment
132 // TODO: ADD IN/OUT description here
133 {
134 EFI_STATUS Status;
135 UGA_PRIVATE_DATA *Private;
136 EFI_UGA_PIXEL Fill;
137 EFI_UGA_PIXEL *NewFillLine;
138 RECT Rect;
139 UINTN Size;
140 UINTN Width;
141 UINTN Height;
142
143 Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This);
144
145 if (Private->HardwareNeedsStarting) {
146 Status = WinNtUgaStartWindow (
147 Private,
148 HorizontalResolution,
149 VerticalResolution,
150 ColorDepth,
151 RefreshRate
152 );
153 if (EFI_ERROR (Status)) {
154 return EFI_DEVICE_ERROR;
155 }
156
157 Private->HardwareNeedsStarting = FALSE;
158 } else {
159 //
160 // Change the resolution and resize of the window
161 //
162
163 //
164 // Free the old buffer. We do not save the content of the old buffer since the
165 // screen is to be cleared anyway. Clearing the screen is required by the EFI spec.
166 // See EFI spec chepter 10.5-EFI_UGA_DRAW_PROTOCOL.SetMode()
167 //
168 Private->WinNtThunk->HeapFree (Private->WinNtThunk->GetProcessHeap (), 0, Private->VirtualScreenInfo);
169
170 //
171 // Allocate DIB frame buffer directly from NT for performance enhancement
172 // This buffer is the virtual screen/frame buffer. This buffer is not the
173 // same a a frame buffer. The first row of this buffer will be the bottom
174 // line of the image. This is an artifact of the way we draw to the screen.
175 //
176 Size = HorizontalResolution * VerticalResolution * sizeof (RGBQUAD) + sizeof (BITMAPV4HEADER);
177 Private->VirtualScreenInfo = Private->WinNtThunk->HeapAlloc (
178 Private->WinNtThunk->GetProcessHeap (),
179 HEAP_ZERO_MEMORY,
180 Size
181 );
182
183 //
184 // Update the virtual screen info data structure
185 //
186 Private->VirtualScreenInfo->bV4Size = sizeof (BITMAPV4HEADER);
187 Private->VirtualScreenInfo->bV4Width = HorizontalResolution;
188 Private->VirtualScreenInfo->bV4Height = VerticalResolution;
189 Private->VirtualScreenInfo->bV4Planes = 1;
190 Private->VirtualScreenInfo->bV4BitCount = 32;
191 //
192 // uncompressed
193 //
194 Private->VirtualScreenInfo->bV4V4Compression = BI_RGB;
195
196 //
197 // The rest of the allocated memory block is the virtual screen buffer
198 //
199 Private->VirtualScreen = (RGBQUAD *) (Private->VirtualScreenInfo + 1);
200
201 //
202 // Use the AdjuctWindowRect fuction to calculate the real width and height
203 // of the new window including the border and caption
204 //
205 Rect.left = 0;
206 Rect.top = 0;
207 Rect.right = HorizontalResolution;
208 Rect.bottom = VerticalResolution;
209
210 Private->WinNtThunk->AdjustWindowRect (&Rect, WS_OVERLAPPEDWINDOW, 0);
211
212 Width = Rect.right - Rect.left;
213 Height = Rect.bottom - Rect.top;
214
215 //
216 // Retrieve the original window position information
217 //
218 Private->WinNtThunk->GetWindowRect (Private->WindowHandle, &Rect);
219
220 //
221 // Adjust the window size
222 //
223 Private->WinNtThunk->MoveWindow (Private->WindowHandle, Rect.left, Rect.top, Width, Height, TRUE);
224
225 }
226
227 Status = gBS->AllocatePool (
228 EfiBootServicesData,
229 sizeof (EFI_UGA_PIXEL) * HorizontalResolution,
230 &NewFillLine
231 );
232 if (EFI_ERROR (Status)) {
233 return EFI_DEVICE_ERROR;
234 }
235
236 if (Private->FillLine != NULL) {
237 gBS->FreePool (Private->FillLine);
238 }
239
240 Private->FillLine = NewFillLine;
241
242 Private->HorizontalResolution = HorizontalResolution;
243 Private->VerticalResolution = VerticalResolution;
244 Private->ColorDepth = ColorDepth;
245 Private->RefreshRate = RefreshRate;
246
247 Fill.Red = 0x00;
248 Fill.Green = 0x00;
249 Fill.Blue = 0x00;
250 This->Blt (
251 This,
252 &Fill,
253 EfiUgaVideoFill,
254 0,
255 0,
256 0,
257 0,
258 HorizontalResolution,
259 VerticalResolution,
260 HorizontalResolution * sizeof (EFI_UGA_PIXEL)
261 );
262 return EFI_SUCCESS;
263 }
264
265 EFI_STATUS
266 EFIAPI
267 WinNtUgaBlt (
268 IN EFI_UGA_DRAW_PROTOCOL *This,
269 IN EFI_UGA_PIXEL *BltBuffer, OPTIONAL
270 IN EFI_UGA_BLT_OPERATION BltOperation,
271 IN UINTN SourceX,
272 IN UINTN SourceY,
273 IN UINTN DestinationX,
274 IN UINTN DestinationY,
275 IN UINTN Width,
276 IN UINTN Height,
277 IN UINTN Delta OPTIONAL
278 )
279 /*++
280
281 Routine Description:
282 Blt pixels from the rectangle (Width X Height) formed by the BltBuffer
283 onto the graphics screen starting a location (X, Y). (0, 0) is defined as
284 the upper left hand side of the screen. (X, Y) can be outside of the
285 current screen geometry and the BltBuffer will be cliped when it is
286 displayed. X and Y can be negative or positive. If Width or Height is
287 bigger than the current video screen the image will be clipped.
288
289 Arguments:
290 This - Protocol instance pointer.
291 X - X location on graphics screen.
292 Y - Y location on the graphics screen.
293 Width - Width of BltBuffer.
294 Height - Hight of BltBuffer
295 BltOperation - Operation to perform on BltBuffer and video memory
296 BltBuffer - Buffer containing data to blt into video buffer. This
297 buffer has a size of Width*Height*sizeof(EFI_UGA_PIXEL)
298 SourceX - If the BltOperation is a EfiCopyBlt this is the source
299 of the copy. For other BLT operations this argument is not
300 used.
301 SourceX - If the BltOperation is a EfiCopyBlt this is the source
302 of the copy. For other BLT operations this argument is not
303 used.
304
305 Returns:
306 EFI_SUCCESS - The palette is updated with PaletteArray.
307 EFI_INVALID_PARAMETER - BltOperation is not valid.
308 EFI_DEVICE_ERROR - A hardware error occured writting to the video
309 buffer.
310
311 --*/
312 // TODO: SourceY - add argument and description to function comment
313 // TODO: DestinationX - add argument and description to function comment
314 // TODO: DestinationY - add argument and description to function comment
315 // TODO: Delta - add argument and description to function comment
316 {
317 UGA_PRIVATE_DATA *Private;
318 EFI_TPL OriginalTPL;
319 UINTN DstY;
320 UINTN SrcY;
321 RGBQUAD *VScreen;
322 RGBQUAD *VScreenSrc;
323 EFI_UGA_PIXEL *Blt;
324 UINTN Index;
325 RECT Rect;
326 EFI_UGA_PIXEL *FillPixel;
327
328 Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This);
329
330 if ((BltOperation < 0) || (BltOperation >= EfiUgaBltMax)) {
331 return EFI_INVALID_PARAMETER;
332 }
333
334 if (Width == 0 || Height == 0) {
335 return EFI_INVALID_PARAMETER;
336 }
337 //
338 // If Delta is zero, then the entire BltBuffer is being used, so Delta
339 // is the number of bytes in each row of BltBuffer. Since BltBuffer is Width pixels size,
340 // the number of bytes in each row can be computed.
341 //
342 if (Delta == 0) {
343 Delta = Width * sizeof (EFI_UGA_PIXEL);
344 }
345
346 //
347 // We need to fill the Virtual Screen buffer with the blt data.
348 // The virtual screen is upside down, as the first row is the bootom row of
349 // the image.
350 //
351
352 if (BltOperation == EfiUgaVideoToBltBuffer) {
353
354 //
355 // Video to BltBuffer: Source is Video, destination is BltBuffer
356 //
357 if (SourceY + Height > Private->VerticalResolution) {
358 return EFI_INVALID_PARAMETER;
359 }
360
361 if (SourceX + Width > Private->HorizontalResolution) {
362 return EFI_INVALID_PARAMETER;
363 }
364 //
365 // We have to raise to TPL Notify, so we make an atomic write the frame buffer.
366 // We would not want a timer based event (Cursor, ...) to come in while we are
367 // doing this operation.
368 //
369 OriginalTPL = gBS->RaiseTPL (EFI_TPL_NOTIFY);
370
371 for (SrcY = SourceY, DstY = DestinationY; DstY < (Height + DestinationY); SrcY++, DstY++) {
372 Blt = (EFI_UGA_PIXEL *) ((UINT8 *) BltBuffer + (DstY * Delta) + DestinationX * sizeof (EFI_UGA_PIXEL));
373 VScreen = &Private->VirtualScreen[(Private->VerticalResolution - SrcY - 1) * Private->HorizontalResolution + SourceX];
374 CopyMem (Blt, VScreen, sizeof (EFI_UGA_PIXEL) * Width);
375 }
376 } else {
377 //
378 // BltBuffer to Video: Source is BltBuffer, destination is Video
379 //
380 if (DestinationY + Height > Private->VerticalResolution) {
381 return EFI_INVALID_PARAMETER;
382 }
383
384 if (DestinationX + Width > Private->HorizontalResolution) {
385 return EFI_INVALID_PARAMETER;
386 }
387
388 //
389 // We have to raise to TPL Notify, so we make an atomic write the frame buffer.
390 // We would not want a timer based event (Cursor, ...) to come in while we are
391 // doing this operation.
392 //
393 OriginalTPL = gBS->RaiseTPL (EFI_TPL_NOTIFY);
394
395 if (BltOperation == EfiUgaVideoFill) {
396 FillPixel = BltBuffer;
397 for (Index = 0; Index < Width; Index++) {
398 Private->FillLine[Index] = *FillPixel;
399 }
400 }
401
402 for (Index = 0; Index < Height; Index++) {
403 if (DestinationY <= SourceY) {
404 SrcY = SourceY + Index;
405 DstY = DestinationY + Index;
406 } else {
407 SrcY = SourceY + Height - Index - 1;
408 DstY = DestinationY + Height - Index - 1;
409 }
410
411 VScreen = &Private->VirtualScreen[(Private->VerticalResolution - DstY - 1) * Private->HorizontalResolution + DestinationX];
412 switch (BltOperation) {
413 case EfiUgaBltBufferToVideo:
414 Blt = (EFI_UGA_PIXEL *) ((UINT8 *) BltBuffer + (SrcY * Delta) + SourceX * sizeof (EFI_UGA_PIXEL));
415 CopyMem (VScreen, Blt, Width * sizeof (EFI_UGA_PIXEL));
416 break;
417
418 case EfiUgaVideoToVideo:
419 VScreenSrc = &Private->VirtualScreen[(Private->VerticalResolution - SrcY - 1) * Private->HorizontalResolution + SourceX];
420 CopyMem (VScreen, VScreenSrc, Width * sizeof (EFI_UGA_PIXEL));
421 break;
422
423 case EfiUgaVideoFill:
424 CopyMem (VScreen, Private->FillLine, Width * sizeof (EFI_UGA_PIXEL));
425 break;
426 }
427 }
428 }
429
430 if (BltOperation != EfiUgaVideoToBltBuffer) {
431 //
432 // Mark the area we just blted as Invalid so WM_PAINT will update.
433 //
434 Rect.left = DestinationX;
435 Rect.top = DestinationY;
436 Rect.right = DestinationX + Width;
437 Rect.bottom = DestinationY + Height;
438 Private->WinNtThunk->InvalidateRect (Private->WindowHandle, &Rect, FALSE);
439
440 //
441 // Send the WM_PAINT message to the thread that is drawing the window. We
442 // are in the main thread and the window drawing is in a child thread.
443 // There is a child thread per window. We have no CriticalSection or Mutex
444 // since we write the data and the other thread displays the data. While
445 // we may miss some data for a short period of time this is no different than
446 // a write combining on writes to a frame buffer.
447 //
448
449 Private->WinNtThunk->UpdateWindow (Private->WindowHandle);
450 }
451
452 gBS->RestoreTPL (OriginalTPL);
453
454 return EFI_SUCCESS;
455 }
456
457
458 //
459 // Construction and Destruction functions
460 //
461
462 EFI_STATUS
463 WinNtUgaSupported (
464 IN EFI_WIN_NT_IO_PROTOCOL *WinNtIo
465 )
466 /*++
467
468 Routine Description:
469
470 Arguments:
471
472 Returns:
473
474 None
475
476 --*/
477 // TODO: WinNtIo - add argument and description to function comment
478 // TODO: EFI_UNSUPPORTED - add return value to function comment
479 // TODO: EFI_SUCCESS - add return value to function comment
480 {
481 //
482 // Check to see if the IO abstraction represents a device type we support.
483 //
484 // This would be replaced a check of PCI subsystem ID, etc.
485 //
486 if (!CompareGuid (WinNtIo->TypeGuid, &gEfiWinNtUgaGuid)) {
487 return EFI_UNSUPPORTED;
488 }
489
490 return EFI_SUCCESS;
491 }
492
493 LRESULT
494 CALLBACK
495 WinNtUgaThreadWindowProc (
496 IN HWND hwnd,
497 IN UINT iMsg,
498 IN WPARAM wParam,
499 IN LPARAM lParam
500 )
501 /*++
502
503 Routine Description:
504 Win32 Windows event handler.
505
506 Arguments:
507 See Win32 Book
508
509 Returns:
510 See Win32 Book
511
512 --*/
513 // TODO: hwnd - add argument and description to function comment
514 // TODO: iMsg - add argument and description to function comment
515 // TODO: wParam - add argument and description to function comment
516 // TODO: lParam - add argument and description to function comment
517 {
518 UGA_PRIVATE_DATA *Private;
519 UINTN Size;
520 HDC Handle;
521 PAINTSTRUCT PaintStruct;
522 LPARAM Index;
523 EFI_INPUT_KEY Key;
524
525 //
526 // BugBug - if there are two instances of this DLL in memory (such as is
527 // the case for ERM), the correct instance of this function may not be called.
528 // This also means that the address of the mTlsIndex value will be wrong, and
529 // the value may be wrong too.
530 //
531
532
533 //
534 // Use mTlsIndex global to get a Thread Local Storage version of Private.
535 // This works since each Uga protocol has a unique Private data instance and
536 // a unique thread.
537 //
538 Private = mWinNt->TlsGetValue (mTlsIndex);
539 ASSERT (NULL != Private);
540
541 switch (iMsg) {
542 case WM_CREATE:
543 Size = Private->HorizontalResolution * Private->VerticalResolution * sizeof (RGBQUAD);
544
545 //
546 // Allocate DIB frame buffer directly from NT for performance enhancement
547 // This buffer is the virtual screen/frame buffer. This buffer is not the
548 // same a a frame buffer. The first fow of this buffer will be the bottom
549 // line of the image. This is an artifact of the way we draw to the screen.
550 //
551 Private->VirtualScreenInfo = Private->WinNtThunk->HeapAlloc (
552 Private->WinNtThunk->GetProcessHeap (),
553 HEAP_ZERO_MEMORY,
554 Size
555 );
556
557 Private->VirtualScreenInfo->bV4Size = sizeof (BITMAPV4HEADER);
558 Private->VirtualScreenInfo->bV4Width = Private->HorizontalResolution;
559 Private->VirtualScreenInfo->bV4Height = Private->VerticalResolution;
560 Private->VirtualScreenInfo->bV4Planes = 1;
561 Private->VirtualScreenInfo->bV4BitCount = 32;
562 //
563 // uncompressed
564 //
565 Private->VirtualScreenInfo->bV4V4Compression = BI_RGB;
566 Private->VirtualScreen = (RGBQUAD *) (Private->VirtualScreenInfo + 1);
567 return 0;
568
569 case WM_PAINT:
570 //
571 // I have not found a way to convert hwnd into a Private context. So for
572 // now we use this API to convert hwnd to Private data.
573 //
574
575 Handle = mWinNt->BeginPaint (hwnd, &PaintStruct);
576
577 mWinNt->SetDIBitsToDevice (
578 Handle, // Destination Device Context
579 0, // Destination X - 0
580 0, // Destination Y - 0
581 Private->HorizontalResolution, // Width
582 Private->VerticalResolution, // Height
583 0, // Source X
584 0, // Source Y
585 0, // DIB Start Scan Line
586 Private->VerticalResolution, // Number of scan lines
587 Private->VirtualScreen, // Address of array of DIB bits
588 (BITMAPINFO *) Private->VirtualScreenInfo, // Address of structure with bitmap info
589 DIB_RGB_COLORS // RGB or palette indexes
590 );
591
592 mWinNt->EndPaint (hwnd, &PaintStruct);
593 return 0;
594
595 //
596 // F10 and the ALT key do not create a WM_KEYDOWN message, thus this special case
597 //
598 case WM_SYSKEYDOWN:
599 Key.ScanCode = 0;
600 switch (wParam) {
601 case VK_F10:
602 Key.ScanCode = SCAN_F10;
603 Key.UnicodeChar = 0;
604 UgaPrivateAddQ (Private, Key);
605 return 0;
606 }
607 break;
608
609 case WM_KEYDOWN:
610 Key.ScanCode = 0;
611 switch (wParam) {
612 case VK_HOME: Key.ScanCode = SCAN_HOME; break;
613 case VK_END: Key.ScanCode = SCAN_END; break;
614 case VK_LEFT: Key.ScanCode = SCAN_LEFT; break;
615 case VK_RIGHT: Key.ScanCode = SCAN_RIGHT; break;
616 case VK_UP: Key.ScanCode = SCAN_UP; break;
617 case VK_DOWN: Key.ScanCode = SCAN_DOWN; break;
618 case VK_DELETE: Key.ScanCode = SCAN_DELETE; break;
619 case VK_INSERT: Key.ScanCode = SCAN_INSERT; break;
620 case VK_PRIOR: Key.ScanCode = SCAN_PAGE_UP; break;
621 case VK_NEXT: Key.ScanCode = SCAN_PAGE_DOWN; break;
622 case VK_ESCAPE: Key.ScanCode = SCAN_ESC; break;
623
624 case VK_F1: Key.ScanCode = SCAN_F1; break;
625 case VK_F2: Key.ScanCode = SCAN_F2; break;
626 case VK_F3: Key.ScanCode = SCAN_F3; break;
627 case VK_F4: Key.ScanCode = SCAN_F4; break;
628 case VK_F5: Key.ScanCode = SCAN_F5; break;
629 case VK_F6: Key.ScanCode = SCAN_F6; break;
630 case VK_F7: Key.ScanCode = SCAN_F7; break;
631 case VK_F8: Key.ScanCode = SCAN_F8; break;
632 case VK_F9: Key.ScanCode = SCAN_F9; break;
633 }
634
635 if (Key.ScanCode != 0) {
636 Key.UnicodeChar = 0;
637 UgaPrivateAddQ (Private, Key);
638 }
639
640 return 0;
641
642 case WM_CHAR:
643 //
644 // The ESC key also generate WM_CHAR.
645 //
646 if (wParam == 0x1B) {
647 return 0;
648 }
649
650 for (Index = 0; Index < (lParam & 0xffff); Index++) {
651 if (wParam != 0) {
652 Key.UnicodeChar = (CHAR16) wParam;
653 Key.ScanCode = 0;
654 UgaPrivateAddQ (Private, Key);
655 }
656 }
657
658 return 0;
659
660 case WM_CLOSE:
661 //
662 // This close message is issued by user, core is not aware of this,
663 // so don't release the window display resource, just hide the window.
664 //
665 Private->WinNtThunk->ShowWindow (Private->WindowHandle, SW_HIDE);
666 return 0;
667
668 case WM_DESTROY:
669 mWinNt->DestroyWindow (hwnd);
670 mWinNt->PostQuitMessage (0);
671
672 mWinNt->HeapFree (Private->WinNtThunk->GetProcessHeap (), 0, Private->VirtualScreenInfo);
673
674 mWinNt->ExitThread (0);
675 return 0;
676
677 default:
678 break;
679 };
680
681 return mWinNt->DefWindowProc (hwnd, iMsg, wParam, lParam);
682 }
683
684 DWORD
685 WINAPI
686 WinNtUgaThreadWinMain (
687 LPVOID lpParameter
688 )
689 /*++
690
691 Routine Description:
692
693 This thread simulates the end of WinMain () aplication. Each Winow nededs
694 to process it's events. The messages are dispatched to
695 WinNtUgaThreadWindowProc ().
696
697 Be very careful sine WinNtUgaThreadWinMain () and WinNtUgaThreadWindowProc ()
698 are running in a seperate thread. We have to do this to process the events.
699
700 Arguments:
701
702 lpParameter - Handle of window to manage.
703
704 Returns:
705
706 if a WM_QUIT message is returned exit.
707
708 --*/
709 {
710 MSG Message;
711 UGA_PRIVATE_DATA *Private;
712 ATOM Atom;
713 RECT Rect;
714
715 Private = (UGA_PRIVATE_DATA *) lpParameter;
716 ASSERT (NULL != Private);
717
718 //
719 // Since each thread has unique private data, save the private data in Thread
720 // Local Storage slot. Then the shared global mTlsIndex can be used to get
721 // thread specific context.
722 //
723 Private->WinNtThunk->TlsSetValue (mTlsIndex, Private);
724
725 Private->ThreadId = Private->WinNtThunk->GetCurrentThreadId ();
726
727 Private->WindowsClass.cbSize = sizeof (WNDCLASSEX);
728 Private->WindowsClass.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
729 Private->WindowsClass.lpfnWndProc = WinNtUgaThreadWindowProc;
730 Private->WindowsClass.cbClsExtra = 0;
731 Private->WindowsClass.cbWndExtra = 0;
732 Private->WindowsClass.hInstance = NULL;
733 Private->WindowsClass.hIcon = Private->WinNtThunk->LoadIcon (NULL, IDI_APPLICATION);
734 Private->WindowsClass.hCursor = Private->WinNtThunk->LoadCursor (NULL, IDC_ARROW);
735 Private->WindowsClass.hbrBackground = (HBRUSH) COLOR_WINDOW;
736 Private->WindowsClass.lpszMenuName = NULL;
737 Private->WindowsClass.lpszClassName = WIN_NT_UGA_CLASS_NAME;
738 Private->WindowsClass.hIconSm = Private->WinNtThunk->LoadIcon (NULL, IDI_APPLICATION);
739
740 //
741 // This call will fail after the first time, but thats O.K. since we only need
742 // WIN_NT_UGA_CLASS_NAME to exist to create the window.
743 //
744 // Note: Multiple instances of this DLL will use the same instance of this
745 // Class, including the callback function, unless the Class is unregistered and
746 // successfully registered again.
747 //
748 Atom = Private->WinNtThunk->RegisterClassEx (&Private->WindowsClass);
749
750 //
751 // Setting Rect values to allow for the AdjustWindowRect to provide
752 // us the correct sizes for the client area when doing the CreateWindowEx
753 //
754 Rect.top = 0;
755 Rect.bottom = Private->VerticalResolution;
756 Rect.left = 0;
757 Rect.right = Private->HorizontalResolution;
758
759 Private->WinNtThunk->AdjustWindowRect (&Rect, WS_OVERLAPPEDWINDOW, 0);
760
761 Private->WindowHandle = Private->WinNtThunk->CreateWindowEx (
762 0,
763 WIN_NT_UGA_CLASS_NAME,
764 Private->WindowName,
765 WS_OVERLAPPEDWINDOW,
766 CW_USEDEFAULT,
767 CW_USEDEFAULT,
768 Rect.right - Rect.left,
769 Rect.bottom - Rect.top,
770 NULL,
771 NULL,
772 NULL,
773 &Private
774 );
775
776 //
777 // The reset of this thread is the standard winows program. We need a sperate
778 // thread since we must process the message loop to make windows act like
779 // windows.
780 //
781
782 Private->WinNtThunk->ShowWindow (Private->WindowHandle, SW_SHOW);
783 Private->WinNtThunk->UpdateWindow (Private->WindowHandle);
784
785 //
786 // Let the main thread get some work done
787 //
788 Private->WinNtThunk->ReleaseSemaphore (Private->ThreadInited, 1, NULL);
789
790 //
791 // This is the message loop that all Windows programs need.
792 //
793 while (Private->WinNtThunk->GetMessage (&Message, Private->WindowHandle, 0, 0)) {
794 Private->WinNtThunk->TranslateMessage (&Message);
795 Private->WinNtThunk->DispatchMessage (&Message);
796 }
797
798 return Message.wParam;
799 }
800
801 EFI_STATUS
802 WinNtUgaStartWindow (
803 IN UGA_PRIVATE_DATA *Private,
804 IN UINT32 HorizontalResolution,
805 IN UINT32 VerticalResolution,
806 IN UINT32 ColorDepth,
807 IN UINT32 RefreshRate
808 )
809 /*++
810
811 Routine Description:
812
813 TODO: Add function description
814
815 Arguments:
816
817 Private - TODO: add argument description
818 HorizontalResolution - TODO: add argument description
819 VerticalResolution - TODO: add argument description
820 ColorDepth - TODO: add argument description
821 RefreshRate - TODO: add argument description
822
823 Returns:
824
825 TODO: add return values
826
827 --*/
828 {
829 EFI_STATUS Status;
830 DWORD NewThreadId;
831
832
833 mWinNt = Private->WinNtThunk;
834
835 //
836 // Initialize a Thread Local Storge variable slot. We use TLS to get the
837 // correct Private data instance into the windows thread.
838 //
839 if (mTlsIndex == TLS_OUT_OF_INDEXES) {
840 ASSERT (0 == mTlsIndexUseCount);
841 mTlsIndex = Private->WinNtThunk->TlsAlloc ();
842 }
843
844 //
845 // always increase the use count!
846 //
847 mTlsIndexUseCount++;
848
849 Private->HorizontalResolution = HorizontalResolution;
850 Private->VerticalResolution = VerticalResolution;
851
852 //
853 // Register to be notified on exit boot services so we can destroy the window.
854 //
855 Status = gBS->CreateEvent (
856 EFI_EVENT_SIGNAL_EXIT_BOOT_SERVICES,
857 EFI_TPL_CALLBACK,
858 KillNtUgaThread,
859 Private,
860 &mUgaScreenExitBootServicesEvent
861 );
862
863 Private->ThreadInited = Private->WinNtThunk->CreateSemaphore (NULL, 0, 1, NULL);
864 Private->ThreadHandle = Private->WinNtThunk->CreateThread (
865 NULL,
866 0,
867 WinNtUgaThreadWinMain,
868 (VOID *) Private,
869 0,
870 &NewThreadId
871 );
872
873 //
874 // The other thread has entered the windows message loop so we can
875 // continue our initialization.
876 //
877 Private->WinNtThunk->WaitForSingleObject (Private->ThreadInited, INFINITE);
878 Private->WinNtThunk->CloseHandle (Private->ThreadInited);
879
880 return Status;
881 }
882
883 EFI_STATUS
884 WinNtUgaConstructor (
885 UGA_PRIVATE_DATA *Private
886 )
887 /*++
888
889 Routine Description:
890
891 Arguments:
892
893 Returns:
894
895 None
896
897 --*/
898 // TODO: Private - add argument and description to function comment
899 // TODO: EFI_SUCCESS - add return value to function comment
900 {
901
902 Private->UgaDraw.GetMode = WinNtUgaGetMode;
903 Private->UgaDraw.SetMode = WinNtUgaSetMode;
904 Private->UgaDraw.Blt = WinNtUgaBlt;
905
906 Private->HardwareNeedsStarting = TRUE;
907 Private->FillLine = NULL;
908
909 WinNtUgaInitializeSimpleTextInForWindow (Private);
910
911 return EFI_SUCCESS;
912 }
913
914 EFI_STATUS
915 WinNtUgaDestructor (
916 UGA_PRIVATE_DATA *Private
917 )
918 /*++
919
920 Routine Description:
921
922 Arguments:
923
924 Returns:
925
926 None
927
928 --*/
929 // TODO: Private - add argument and description to function comment
930 // TODO: EFI_SUCCESS - add return value to function comment
931 {
932 UINT32 UnregisterReturn;
933
934 if (!Private->HardwareNeedsStarting) {
935 //
936 // BugBug: Shutdown Uga Hardware and any child devices.
937 //
938 Private->WinNtThunk->SendMessage (Private->WindowHandle, WM_DESTROY, 0, 0);
939 Private->WinNtThunk->CloseHandle (Private->ThreadHandle);
940
941 mTlsIndexUseCount--;
942
943 //
944 // The callback function for another window could still be called,
945 // so we need to make sure there are no more users of mTlsIndex.
946 //
947 if (0 == mTlsIndexUseCount) {
948 ASSERT (TLS_OUT_OF_INDEXES != mTlsIndex);
949
950 Private->WinNtThunk->TlsFree (mTlsIndex);
951 mTlsIndex = TLS_OUT_OF_INDEXES;
952
953 UnregisterReturn = Private->WinNtThunk->UnregisterClass (
954 Private->WindowsClass.lpszClassName,
955 Private->WindowsClass.hInstance
956 );
957 }
958
959 WinNtUgaDestroySimpleTextInForWindow (Private);
960 }
961
962 return EFI_SUCCESS;
963 }
964
965 STATIC
966 VOID
967 EFIAPI
968 KillNtUgaThread (
969 IN EFI_EVENT Event,
970 IN VOID *Context
971 )
972 /*++
973
974 Routine Description:
975
976 This is the UGA screen's callback notification function for exit-boot-services.
977 All we do here is call WinNtUgaDestructor().
978
979 Arguments:
980
981 Event - not used
982 Context - pointer to the Private structure.
983
984 Returns:
985
986 None.
987
988 --*/
989 {
990 EFI_STATUS Status;
991 Status = WinNtUgaDestructor (Context);
992 }
EFI Development Kit II mirror for PVE