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