ReactOS  0.4.15-dev-2996-gf777e6b
screen.c
Go to the documentation of this file.
1 /*
2  * ReactOS Generic Framebuffer display driver
3  *
4  * Copyright (C) 2004 Filip Navara
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License along
17  * with this program; if not, write to the Free Software Foundation, Inc.,
18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19  */
20 
21 #include "framebuf.h"
22 
26 
27 /*
28  * GetAvailableModes
29  *
30  * Calls the miniport to get the list of modes supported by the kernel driver,
31  * and returns the list of modes supported by the display driver.
32  */
33 
34 DWORD
37  PVIDEO_MODE_INFORMATION *ModeInfo,
38  DWORD *ModeInfoSize)
39 {
40  ULONG ulTemp;
42  PVIDEO_MODE_INFORMATION ModeInfoPtr;
43 
44  /*
45  * Get the number of modes supported by the mini-port
46  */
47 
48  if (EngDeviceIoControl(hDriver, IOCTL_VIDEO_QUERY_NUM_AVAIL_MODES, NULL,
49  0, &Modes, sizeof(VIDEO_NUM_MODES), &ulTemp))
50  {
51  return 0;
52  }
53 
54  if (Modes.NumModes == 0)
55  {
56  return 0;
57  }
58 
59  *ModeInfoSize = Modes.ModeInformationLength;
60 
61  /*
62  * Allocate the buffer for the miniport to write the modes in.
63  */
64 
65  *ModeInfo = (PVIDEO_MODE_INFORMATION)EngAllocMem(0, Modes.NumModes *
66  Modes.ModeInformationLength, ALLOC_TAG);
67 
68  if (*ModeInfo == NULL)
69  {
70  return 0;
71  }
72 
73  /*
74  * Ask the miniport to fill in the available modes.
75  */
76 
77  if (EngDeviceIoControl(hDriver, IOCTL_VIDEO_QUERY_AVAIL_MODES, NULL, 0,
78  *ModeInfo, Modes.NumModes * Modes.ModeInformationLength,
79  &ulTemp))
80  {
81  EngFreeMem(*ModeInfo);
82  *ModeInfo = (PVIDEO_MODE_INFORMATION)NULL;
83  return 0;
84  }
85 
86  /*
87  * Now see which of these modes are supported by the display driver.
88  * As an internal mechanism, set the length to 0 for the modes we
89  * DO NOT support.
90  */
91 
92  ulTemp = Modes.NumModes;
93  ModeInfoPtr = *ModeInfo;
94 
95  /*
96  * Mode is rejected if it is not one plane, or not graphics, or is not
97  * one of 8, 16 or 32 bits per pel.
98  */
99 
100  while (ulTemp--)
101  {
102  if ((ModeInfoPtr->NumberOfPlanes != 1) ||
103  !(ModeInfoPtr->AttributeFlags & VIDEO_MODE_GRAPHICS) ||
104  ((ModeInfoPtr->BitsPerPlane != 8) &&
105  (ModeInfoPtr->BitsPerPlane != 16) &&
106  (ModeInfoPtr->BitsPerPlane != 24) &&
107  (ModeInfoPtr->BitsPerPlane != 32)))
108  {
109  ModeInfoPtr->Length = 0;
110  }
111 
112  ModeInfoPtr = (PVIDEO_MODE_INFORMATION)
113  (((PUCHAR)ModeInfoPtr) + Modes.ModeInformationLength);
114  }
115 
116  return Modes.NumModes;
117 }
118 
119 BOOL
121  PPDEV ppdev,
122  LPDEVMODEW pDevMode,
123  PGDIINFO pGdiInfo,
124  PDEVINFO pDevInfo)
125 {
126  ULONG ModeCount;
127  ULONG ModeInfoSize;
128  PVIDEO_MODE_INFORMATION ModeInfo, ModeInfoPtr, SelectedMode = NULL;
129  VIDEO_COLOR_CAPABILITIES ColorCapabilities;
130  ULONG Temp;
131 
132  /*
133  * Call miniport to get information about video modes.
134  */
135 
136  ModeCount = GetAvailableModes(ppdev->hDriver, &ModeInfo, &ModeInfoSize);
137  if (ModeCount == 0)
138  {
139  return FALSE;
140  }
141 
142  /*
143  * Select the video mode depending on the info passed in pDevMode.
144  */
145 
146  if (pDevMode->dmPelsWidth == 0 && pDevMode->dmPelsHeight == 0 &&
147  pDevMode->dmBitsPerPel == 0 && pDevMode->dmDisplayFrequency == 0)
148  {
149  ModeInfoPtr = ModeInfo;
150  while (ModeCount-- > 0)
151  {
152  if (ModeInfoPtr->Length == 0)
153  {
154  ModeInfoPtr = (PVIDEO_MODE_INFORMATION)
155  (((PUCHAR)ModeInfoPtr) + ModeInfoSize);
156  continue;
157  }
158  SelectedMode = ModeInfoPtr;
159  break;
160  }
161  }
162  else
163  {
164  ModeInfoPtr = ModeInfo;
165  while (ModeCount-- > 0)
166  {
167  if (ModeInfoPtr->Length > 0 &&
168  pDevMode->dmPelsWidth == ModeInfoPtr->VisScreenWidth &&
169  pDevMode->dmPelsHeight == ModeInfoPtr->VisScreenHeight &&
170  pDevMode->dmBitsPerPel == (ModeInfoPtr->BitsPerPlane *
171  ModeInfoPtr->NumberOfPlanes) &&
172  pDevMode->dmDisplayFrequency == ModeInfoPtr->Frequency)
173  {
174  SelectedMode = ModeInfoPtr;
175  break;
176  }
177 
178  ModeInfoPtr = (PVIDEO_MODE_INFORMATION)
179  (((PUCHAR)ModeInfoPtr) + ModeInfoSize);
180  }
181  }
182 
183  if (SelectedMode == NULL)
184  {
185  EngFreeMem(ModeInfo);
186  return FALSE;
187  }
188 
189  /*
190  * Fill in the GDIINFO data structure with the information returned from
191  * the kernel driver.
192  */
193 
194  ppdev->ModeIndex = SelectedMode->ModeIndex;
195  ppdev->ScreenWidth = SelectedMode->VisScreenWidth;
196  ppdev->ScreenHeight = SelectedMode->VisScreenHeight;
197  ppdev->ScreenDelta = SelectedMode->ScreenStride;
198  ppdev->BitsPerPixel = (UCHAR)(SelectedMode->BitsPerPlane * SelectedMode->NumberOfPlanes);
199 
200  ppdev->MemWidth = SelectedMode->VideoMemoryBitmapWidth;
201  ppdev->MemHeight = SelectedMode->VideoMemoryBitmapHeight;
202 
203  ppdev->RedMask = SelectedMode->RedMask;
204  ppdev->GreenMask = SelectedMode->GreenMask;
205  ppdev->BlueMask = SelectedMode->BlueMask;
206 
207  pGdiInfo->ulVersion = GDI_DRIVER_VERSION;
208  pGdiInfo->ulTechnology = DT_RASDISPLAY;
209  pGdiInfo->ulHorzSize = SelectedMode->XMillimeter;
210  pGdiInfo->ulVertSize = SelectedMode->YMillimeter;
211  pGdiInfo->ulHorzRes = SelectedMode->VisScreenWidth;
212  pGdiInfo->ulVertRes = SelectedMode->VisScreenHeight;
213  pGdiInfo->ulPanningHorzRes = SelectedMode->VisScreenWidth;
214  pGdiInfo->ulPanningVertRes = SelectedMode->VisScreenHeight;
215  pGdiInfo->cBitsPixel = SelectedMode->BitsPerPlane;
216  pGdiInfo->cPlanes = SelectedMode->NumberOfPlanes;
217  pGdiInfo->ulVRefresh = SelectedMode->Frequency;
218  pGdiInfo->ulBltAlignment = 1;
219  pGdiInfo->ulLogPixelsX = pDevMode->dmLogPixels;
220  pGdiInfo->ulLogPixelsY = pDevMode->dmLogPixels;
221  pGdiInfo->flTextCaps = TC_RA_ABLE;
222  pGdiInfo->flRaster = 0;
223  pGdiInfo->ulDACRed = SelectedMode->NumberRedBits;
224  pGdiInfo->ulDACGreen = SelectedMode->NumberGreenBits;
225  pGdiInfo->ulDACBlue = SelectedMode->NumberBlueBits;
226  pGdiInfo->ulAspectX = 0x24;
227  pGdiInfo->ulAspectY = 0x24;
228  pGdiInfo->ulAspectXY = 0x33;
229  pGdiInfo->xStyleStep = 1;
230  pGdiInfo->yStyleStep = 1;
231  pGdiInfo->denStyleStep = 3;
232  pGdiInfo->ptlPhysOffset.x = 0;
233  pGdiInfo->ptlPhysOffset.y = 0;
234  pGdiInfo->szlPhysSize.cx = 0;
235  pGdiInfo->szlPhysSize.cy = 0;
236 
237  /*
238  * Try to get the color info from the miniport.
239  */
240 
241  if (!EngDeviceIoControl(ppdev->hDriver, IOCTL_VIDEO_QUERY_COLOR_CAPABILITIES,
242  NULL, 0, &ColorCapabilities,
243  sizeof(VIDEO_COLOR_CAPABILITIES), &Temp))
244  {
245  pGdiInfo->ciDevice.Red.x = ColorCapabilities.RedChromaticity_x;
246  pGdiInfo->ciDevice.Red.y = ColorCapabilities.RedChromaticity_y;
247  pGdiInfo->ciDevice.Green.x = ColorCapabilities.GreenChromaticity_x;
248  pGdiInfo->ciDevice.Green.y = ColorCapabilities.GreenChromaticity_y;
249  pGdiInfo->ciDevice.Blue.x = ColorCapabilities.BlueChromaticity_x;
250  pGdiInfo->ciDevice.Blue.y = ColorCapabilities.BlueChromaticity_y;
251  pGdiInfo->ciDevice.AlignmentWhite.x = ColorCapabilities.WhiteChromaticity_x;
252  pGdiInfo->ciDevice.AlignmentWhite.y = ColorCapabilities.WhiteChromaticity_y;
253  pGdiInfo->ciDevice.AlignmentWhite.Y = ColorCapabilities.WhiteChromaticity_Y;
254  if (ColorCapabilities.AttributeFlags & VIDEO_DEVICE_COLOR)
255  {
256  pGdiInfo->ciDevice.RedGamma = ColorCapabilities.RedGamma;
257  pGdiInfo->ciDevice.GreenGamma = ColorCapabilities.GreenGamma;
258  pGdiInfo->ciDevice.BlueGamma = ColorCapabilities.BlueGamma;
259  }
260  else
261  {
262  pGdiInfo->ciDevice.RedGamma = ColorCapabilities.WhiteGamma;
263  pGdiInfo->ciDevice.GreenGamma = ColorCapabilities.WhiteGamma;
264  pGdiInfo->ciDevice.BlueGamma = ColorCapabilities.WhiteGamma;
265  }
266  }
267  else
268  {
269  pGdiInfo->ciDevice.Red.x = 6700;
270  pGdiInfo->ciDevice.Red.y = 3300;
271  pGdiInfo->ciDevice.Green.x = 2100;
272  pGdiInfo->ciDevice.Green.y = 7100;
273  pGdiInfo->ciDevice.Blue.x = 1400;
274  pGdiInfo->ciDevice.Blue.y = 800;
275  pGdiInfo->ciDevice.AlignmentWhite.x = 3127;
276  pGdiInfo->ciDevice.AlignmentWhite.y = 3290;
277  pGdiInfo->ciDevice.AlignmentWhite.Y = 0;
278  pGdiInfo->ciDevice.RedGamma = 20000;
279  pGdiInfo->ciDevice.GreenGamma = 20000;
280  pGdiInfo->ciDevice.BlueGamma = 20000;
281  }
282 
283  pGdiInfo->ciDevice.Red.Y = 0;
284  pGdiInfo->ciDevice.Green.Y = 0;
285  pGdiInfo->ciDevice.Blue.Y = 0;
286  pGdiInfo->ciDevice.Cyan.x = 0;
287  pGdiInfo->ciDevice.Cyan.y = 0;
288  pGdiInfo->ciDevice.Cyan.Y = 0;
289  pGdiInfo->ciDevice.Magenta.x = 0;
290  pGdiInfo->ciDevice.Magenta.y = 0;
291  pGdiInfo->ciDevice.Magenta.Y = 0;
292  pGdiInfo->ciDevice.Yellow.x = 0;
293  pGdiInfo->ciDevice.Yellow.y = 0;
294  pGdiInfo->ciDevice.Yellow.Y = 0;
295  pGdiInfo->ciDevice.MagentaInCyanDye = 0;
296  pGdiInfo->ciDevice.YellowInCyanDye = 0;
297  pGdiInfo->ciDevice.CyanInMagentaDye = 0;
298  pGdiInfo->ciDevice.YellowInMagentaDye = 0;
299  pGdiInfo->ciDevice.CyanInYellowDye = 0;
300  pGdiInfo->ciDevice.MagentaInYellowDye = 0;
301  pGdiInfo->ulDevicePelsDPI = 0;
302  pGdiInfo->ulPrimaryOrder = PRIMARY_ORDER_CBA;
303  pGdiInfo->ulHTPatternSize = HT_PATSIZE_4x4_M;
304  pGdiInfo->flHTFlags = HT_FLAG_ADDITIVE_PRIMS;
305 
306  pDevInfo->flGraphicsCaps = 0;
307  pDevInfo->lfDefaultFont = SystemFont;
308  pDevInfo->lfAnsiVarFont = AnsiVariableFont;
309  pDevInfo->lfAnsiFixFont = AnsiFixedFont;
310  pDevInfo->cFonts = 0;
311  pDevInfo->cxDither = 0;
312  pDevInfo->cyDither = 0;
313  pDevInfo->hpalDefault = 0;
314  pDevInfo->flGraphicsCaps2 = 0;
315 
316  if (ppdev->BitsPerPixel == 8)
317  {
318  pGdiInfo->ulNumColors = 20;
319  pGdiInfo->ulNumPalReg = 1 << ppdev->BitsPerPixel;
320  pGdiInfo->ulHTOutputFormat = HT_FORMAT_8BPP;
321  pDevInfo->flGraphicsCaps |= GCAPS_PALMANAGED;
322  pDevInfo->iDitherFormat = BMF_8BPP;
323  /* Assuming palette is orthogonal - all colors are same size. */
324  ppdev->PaletteShift = (UCHAR)(8 - pGdiInfo->ulDACRed);
325  }
326  else
327  {
328  pGdiInfo->ulNumColors = (ULONG)(-1);
329  pGdiInfo->ulNumPalReg = 0;
330  switch (ppdev->BitsPerPixel)
331  {
332  case 16:
333  pGdiInfo->ulHTOutputFormat = HT_FORMAT_16BPP;
334  pDevInfo->iDitherFormat = BMF_16BPP;
335  break;
336 
337  case 24:
338  pGdiInfo->ulHTOutputFormat = HT_FORMAT_24BPP;
339  pDevInfo->iDitherFormat = BMF_24BPP;
340  break;
341 
342  default:
343  pGdiInfo->ulHTOutputFormat = HT_FORMAT_32BPP;
344  pDevInfo->iDitherFormat = BMF_32BPP;
345  }
346  }
347 
348  EngFreeMem(ModeInfo);
349  return TRUE;
350 }
351 
352 /*
353  * DrvGetModes
354  *
355  * Returns the list of available modes for the device.
356  *
357  * Status
358  * @implemented
359  */
360 
363  IN HANDLE hDriver,
364  IN ULONG cjSize,
365  OUT DEVMODEW *pdm)
366 {
367  ULONG ModeCount;
368  ULONG ModeInfoSize;
369  PVIDEO_MODE_INFORMATION ModeInfo, ModeInfoPtr;
370  ULONG OutputSize;
371 
372  ModeCount = GetAvailableModes(hDriver, &ModeInfo, &ModeInfoSize);
373  if (ModeCount == 0)
374  {
375  return 0;
376  }
377 
378  if (pdm == NULL)
379  {
380  EngFreeMem(ModeInfo);
381  return ModeCount * sizeof(DEVMODEW);
382  }
383 
384  /*
385  * Copy the information about supported modes into the output buffer.
386  */
387 
388  OutputSize = 0;
389  ModeInfoPtr = ModeInfo;
390 
391  while (ModeCount-- > 0)
392  {
393  if (ModeInfoPtr->Length == 0)
394  {
395  ModeInfoPtr = (PVIDEO_MODE_INFORMATION)(((ULONG_PTR)ModeInfoPtr) + ModeInfoSize);
396  continue;
397  }
398 
399  memset(pdm, 0, sizeof(DEVMODEW));
400  memcpy(pdm->dmDeviceName, DEVICE_NAME, sizeof(DEVICE_NAME));
401  pdm->dmSpecVersion =
402  pdm->dmDriverVersion = DM_SPECVERSION;
403  pdm->dmSize = sizeof(DEVMODEW);
404  pdm->dmDriverExtra = 0;
405  pdm->dmBitsPerPel = ModeInfoPtr->NumberOfPlanes * ModeInfoPtr->BitsPerPlane;
406  pdm->dmPelsWidth = ModeInfoPtr->VisScreenWidth;
407  pdm->dmPelsHeight = ModeInfoPtr->VisScreenHeight;
408  pdm->dmDisplayFrequency = ModeInfoPtr->Frequency;
409  pdm->dmDisplayFlags = 0;
410  pdm->dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT |
412 
413  ModeInfoPtr = (PVIDEO_MODE_INFORMATION)(((ULONG_PTR)ModeInfoPtr) + ModeInfoSize);
414  pdm = (LPDEVMODEW)(((ULONG_PTR)pdm) + sizeof(DEVMODEW));
415  OutputSize += sizeof(DEVMODEW);
416  }
417 
418  EngFreeMem(ModeInfo);
419  return OutputSize;
420 }
ULONG ulDevicePelsDPI
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Definition: screen.c:120
LOGFONTW lfAnsiFixFont
Definition: winddi.h:393
#define VIDEO_MODE_GRAPHICS
Definition: ntddvdeo.h:295