1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
4  * Copyright (c) 1991-1997 Søren Schmidt
88     ioctl(0, _IO('V', VGLOldMode - M_VESA_BASE), 0);  in VGLEnd()
100   smode.mode = VT_AUTO;  in VGLEnd()
141 VGLInit(int mode)  in VGLInit()  argument
147     return -1;  in VGLInit()
161     return -1;  in VGLInit()
162   if (IOCGROUP(mode) == 'V')	/* XXX: this is ugly */  in VGLInit()
163     VGLModeInfo.vi_mode = (mode & 0x0ff) + M_VESA_BASE;  in VGLInit()
165     VGLModeInfo.vi_mode = mode & 0x0ff;  in VGLInit()
167     return -1;  in VGLInit()
169   /* Save info for old mode to restore font size if old mode is graphics. */  in VGLInit()
172     return -1;  in VGLInit()
175     return -1;  in VGLInit()
179     return -2;  in VGLInit()
183     return -3;  in VGLInit()
189    * vi_mem_model specifies the memory model of the current video mode  in VGLInit()
190    * in -CURRENT.  in VGLInit()
198       return -4;  in VGLInit()
200     VGLDisplay->Type = VIDBUF4;  in VGLInit()
201     VGLDisplay->PixelBytes = 1;  in VGLInit()
207       return -4;  in VGLInit()
209     VGLDisplay->Type = VIDBUF8;  in VGLInit()
210     VGLDisplay->PixelBytes = 1;  in VGLInit()
213     VGLDisplay->Type = VIDBUF8X;  in VGLInit()
214     VGLDisplay->PixelBytes = 1;  in VGLInit()
217     VGLDisplay->PixelBytes = VGLModeInfo.vi_pixel_size;  in VGLInit()
218     switch (VGLDisplay->PixelBytes) {  in VGLInit()
220       VGLDisplay->Type = VIDBUF16;  in VGLInit()
223       VGLDisplay->Type = VIDBUF24;  in VGLInit()
226       VGLDisplay->Type = VIDBUF32;  in VGLInit()
230       return -4;  in VGLInit()
235     return -4;  in VGLInit()
240   if (ioctl(0, mode, 0)) {  in VGLInit()
242     return -5;  in VGLInit()
246     return -6;  in VGLInit()
250    * Calculate the shadow screen buffer size.  In -CURRENT, va_buffer_size  in VGLInit()
251    * always holds the entire frame buffer size, wheather it's in the linear  in VGLInit()
252    * mode or windowed mode.    in VGLInit()
254    * In -STABLE, va_buffer_size holds the frame buffer size, only if  in VGLInit()
255    * the linear frame buffer mode is supported. Otherwise the field is zero.  in VGLInit()
268    * The above is for old -CURRENT.  Current -CURRENT since r203535 and/or  in VGLInit()
270    * avoid wasting kva for mapping unused parts of the frame buffer.  But all  in VGLInit()
283     return -7;  in VGLInit()
290   /* see if we are in the windowed buffer mode or in the linear buffer mode */  in VGLInit()
292     switch (VGLDisplay->Type) {  in VGLInit()
294       VGLDisplay->Type = VIDBUF4S;  in VGLInit()
297       VGLDisplay->Type = VIDBUF8S;  in VGLInit()
300       VGLDisplay->Type = VIDBUF16S;  in VGLInit()
303       VGLDisplay->Type = VIDBUF24S;  in VGLInit()
306       VGLDisplay->Type = VIDBUF32S;  in VGLInit()
310       return -8;  in VGLInit()
314   VGLMode = mode;  in VGLInit()
317   VGLDisplay->Xsize = VGLModeInfo.vi_width;  in VGLInit()
318   VGLDisplay->Ysize = VGLModeInfo.vi_height;  in VGLInit()
323   VGLDisplay->VXsize = VGLAdpInfo.va_line_width  in VGLInit()
325   VGLDisplay->VYsize = VGLBufSize/VGLModeInfo.vi_planes/VGLAdpInfo.va_line_width;  in VGLInit()
326   VGLDisplay->Xorigin = 0;  in VGLInit()
327   VGLDisplay->Yorigin = 0;  in VGLInit()
333     return -7;  in VGLInit()
335   VGLDisplay->Bitmap = VGLMem;  in VGLInit()
349 	  VGLDisplay->Xsize, VGLDisplay->Ysize,   in VGLInit()
350 	  VGLDisplay->VXsize, VGLDisplay->VYsize);  in VGLInit()
353   smode.mode = VT_PROCESS;  in VGLInit()
360     return -9;  in VGLInit()
386       VGLDisplay->Type = VIDBUF8;	/* XXX */  in VGLCheckSwitch()
391 	    VGLDisplay->Type = VIDBUF4S;  in VGLCheckSwitch()
393 	    VGLDisplay->Type = VIDBUF4;  in VGLCheckSwitch()
401 	    VGLDisplay->Type = VIDBUF8S;  in VGLCheckSwitch()
403 	    VGLDisplay->Type = VIDBUF8;  in VGLCheckSwitch()
407 	VGLDisplay->Type = VIDBUF8X;  in VGLCheckSwitch()
413 	      VGLDisplay->Type = VIDBUF16S;  in VGLCheckSwitch()
415 	      VGLDisplay->Type = VIDBUF16;  in VGLCheckSwitch()
419 	      VGLDisplay->Type = VIDBUF24S;  in VGLCheckSwitch()
421 	      VGLDisplay->Type = VIDBUF24;  in VGLCheckSwitch()
425 	      VGLDisplay->Type = VIDBUF32S;  in VGLCheckSwitch()
427 	      VGLDisplay->Type = VIDBUF32;  in VGLCheckSwitch()
438       VGLDisplay->Bitmap = VGLMem;  in VGLCheckSwitch()
439       VGLDisplay->Xsize = VGLModeInfo.vi_width;  in VGLCheckSwitch()
440       VGLDisplay->Ysize = VGLModeInfo.vi_height;  in VGLCheckSwitch()
441       VGLSetVScreenSize(VGLDisplay, VGLDisplay->VXsize, VGLDisplay->VYsize);  in VGLCheckSwitch()
445       VGLPanScreen(VGLDisplay, VGLDisplay->Xorigin, VGLDisplay->Yorigin);  in VGLCheckSwitch()
447                     VGLDisplay->VXsize, VGLDisplay->VYsize);  in VGLCheckSwitch()
453       munmap(VGLDisplay->Bitmap, VGLAdpInfo.va_window_size);  in VGLCheckSwitch()
459       VGLDisplay->Bitmap = VGLBuf;  in VGLCheckSwitch()
460       VGLDisplay->Type = MEMBUF;  in VGLCheckSwitch()
461       VGLDisplay->Xsize = VGLDisplay->VXsize;  in VGLCheckSwitch()
462       VGLDisplay->Ysize = VGLDisplay->VYsize;  in VGLCheckSwitch()
483   if (VXsize < object->Xsize || VYsize < object->Ysize)  in VGLSetVScreenSize()
484     return -1;  in VGLSetVScreenSize()
485   if (object->Type == MEMBUF)  in VGLSetVScreenSize()
486     return -1;  in VGLSetVScreenSize()
488     return -1;  in VGLSetVScreenSize()
493   object->VXsize = VGLAdpInfo.va_line_width  in VGLSetVScreenSize()
495   object->VYsize = VGLBufSize/VGLModeInfo.vi_planes/VGLAdpInfo.va_line_width;  in VGLSetVScreenSize()
496   if (VYsize < object->VYsize)  in VGLSetVScreenSize()
497     object->VYsize = VYsize;  in VGLSetVScreenSize()
501 	  object->Xsize, object->Ysize, object->VXsize, object->VYsize);  in VGLSetVScreenSize()
512   if (x < 0 || x + object->Xsize > object->VXsize  in VGLPanScreen()
513       || y < 0 || y + object->Ysize > object->VYsize)  in VGLPanScreen()
514     return -1;  in VGLPanScreen()
515   if (object->Type == MEMBUF)  in VGLPanScreen()
520     return -1;  in VGLPanScreen()
521   object->Xorigin = x;  in VGLPanScreen()
522   object->Yorigin = y;  in VGLPanScreen()