code.delx.au - refind/blob - libeg/screen.c

   1 /*
   2  * libeg/screen.c
   3  * Screen handling functions
   4  *
   5  * Copyright (c) 2006 Christoph Pfisterer
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are
  10  * met:
  11  *
  12  *  * Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  *  * Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  *  * Neither the name of Christoph Pfisterer nor the names of the
  21  *    contributors may be used to endorse or promote products derived
  22  *    from this software without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  25  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  26  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  27  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  28  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  29  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  30  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  31  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  32  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  34  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  */
  36 /*
  37  * Modifications copyright (c) 2012 Roderick W. Smith
  38  *
  39  * Modifications distributed under the terms of the GNU General Public
  40  * License (GPL) version 3 (GPLv3), a copy of which must be distributed
  41  * with this source code or binaries made from it.
  42  *
  43  */
  44
  45 #include "libegint.h"
  46 #include "../refind/screen.h"
  47 #include "../refind/lib.h"
  48 #include "../include/refit_call_wrapper.h"
  49
  50 #include <efiUgaDraw.h>
  51 #include <efiConsoleControl.h>
  52
  53 #ifndef __MAKEWITH_GNUEFI
  54 #define LibLocateProtocol EfiLibLocateProtocol
  55 #endif
  56
  57 // Console defines and variables
  58
  59 static EFI_GUID ConsoleControlProtocolGuid = EFI_CONSOLE_CONTROL_PROTOCOL_GUID;
  60 static EFI_CONSOLE_CONTROL_PROTOCOL *ConsoleControl = NULL;
  61
  62 static EFI_GUID UgaDrawProtocolGuid = EFI_UGA_DRAW_PROTOCOL_GUID;
  63 static EFI_UGA_DRAW_PROTOCOL *UgaDraw = NULL;
  64
  65 static EFI_GUID GraphicsOutputProtocolGuid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID;
  66 static EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput = NULL;
  67
  68 static BOOLEAN egHasGraphics = FALSE;
  69 static UINTN egScreenWidth  = 800;
  70 static UINTN egScreenHeight = 600;
  71
  72 //
  73 // Screen handling
  74 //
  75
  76 static VOID egDetermineScreenSize(VOID) {
  77     EFI_STATUS Status = EFI_SUCCESS;
  78     UINT32 UGAWidth, UGAHeight, UGADepth, UGARefreshRate;
  79
  80     // get screen size
  81     egHasGraphics = FALSE;
  82     if (GraphicsOutput != NULL) {
  83         egScreenWidth = GraphicsOutput->Mode->Info->HorizontalResolution;
  84         egScreenHeight = GraphicsOutput->Mode->Info->VerticalResolution;
  85         egHasGraphics = TRUE;
  86     } else if (UgaDraw != NULL) {
  87         Status = refit_call5_wrapper(UgaDraw->GetMode, UgaDraw, &UGAWidth, &UGAHeight, &UGADepth, &UGARefreshRate);
  88         if (EFI_ERROR(Status)) {
  89             UgaDraw = NULL;   // graphics not available
  90         } else {
  91             egScreenWidth  = UGAWidth;
  92             egScreenHeight = UGAHeight;
  93             egHasGraphics = TRUE;
  94         }
  95     }
  96 }
  97
  98 VOID egInitScreen(VOID)
  99 {
 100     EFI_STATUS Status = EFI_SUCCESS;
 101
 102     // get protocols
 103     Status = LibLocateProtocol(&ConsoleControlProtocolGuid, (VOID **) &ConsoleControl);
 104     if (EFI_ERROR(Status))
 105         ConsoleControl = NULL;
 106
 107     Status = LibLocateProtocol(&UgaDrawProtocolGuid, (VOID **) &UgaDraw);
 108     if (EFI_ERROR(Status))
 109         UgaDraw = NULL;
 110
 111     Status = LibLocateProtocol(&GraphicsOutputProtocolGuid, (VOID **) &GraphicsOutput);
 112     if (EFI_ERROR(Status))
 113         GraphicsOutput = NULL;
 114
 115     egDetermineScreenSize();
 116 }
 117
 118 // Convert a graphics mode (in *ModeWidth) to a width and height (returned in
 119 // *ModeWidth and *Height, respectively).
 120 // Returns TRUE if successful, FALSE if not (invalid mode)
 121 BOOLEAN egGetResFromMode(UINTN *ModeWidth, UINTN *Height) {
 122    UINTN                                 Size;
 123    EFI_STATUS                            Status;
 124    EFI_GRAPHICS_OUTPUT_MODE_INFORMATION  *Info = NULL;
 125
 126    Status = refit_call4_wrapper(GraphicsOutput->QueryMode, GraphicsOutput, *ModeWidth, &Size, &Info);
 127    if ((Status == EFI_SUCCESS) && (Info != NULL)) {
 128       *ModeWidth = Info->HorizontalResolution;
 129       *Height = Info->VerticalResolution;
 130       return TRUE;
 131    }
 132    return FALSE;
 133 } // BOOLEAN egGetResFromMode()
 134
 135 // Sets the screen resolution to the specified value, if possible. If *ScreenHeight
 136 // is 0 and GOP mode is detected, assume that *ScreenWidth contains a GOP mode
 137 // number rather than a horizontal resolution. If the specified resolution is not
 138 // valid, displays a warning with the valid modes on GOP (UEFI) systems, or silently
 139 // fails on UGA (EFI 1.x) systems. Note that this function attempts to set ANY screen
 140 // resolution, even 0x0 or ridiculously large values.
 141 // Upon success, returns actual screen resolution in *ScreenWidth and *ScreenHeight.
 142 // These values are unchanged upon failure.
 143 // Returns TRUE if successful, FALSE if not.
 144 BOOLEAN egSetScreenSize(IN OUT UINTN *ScreenWidth, IN OUT UINTN *ScreenHeight) {
 145    EFI_STATUS                            Status = EFI_SUCCESS;
 146    EFI_GRAPHICS_OUTPUT_MODE_INFORMATION  *Info;
 147    UINT32                                ModeNum = 0;
 148    UINTN                                 Size;
 149    BOOLEAN                               ModeSet = FALSE;
 150    UINT32                                UGAWidth, UGAHeight, UGADepth, UGARefreshRate;
 151
 152    if (GraphicsOutput != NULL) { // GOP mode (UEFI)
 153       if (*ScreenHeight == 0) { // User specified a mode number (stored in *ScreenWidth); use it directly
 154          ModeNum = (UINT32) *ScreenWidth;
 155          if (egGetResFromMode(ScreenWidth, ScreenHeight) && (
 156              refit_call2_wrapper(GraphicsOutput->SetMode, GraphicsOutput, ModeNum) == EFI_SUCCESS)) {
 157             ModeSet = TRUE;
 158          }
 159 //          if ((*ScreenWidth == GraphicsOutput->Mode->Mode)) { // user requested current mode; do nothing
 160 //             ModeSet = TRUE;
 161 //             *ScreenWidth = Info->HorizontalResolution;
 162 //             *ScreenHeight = Info->VerticalResolution;
 163 //          } else {
 164 /*            ModeNum = (UINT32) *ScreenWidth;
 165             Status = refit_call4_wrapper(GraphicsOutput->QueryMode, GraphicsOutput, ModeNum, &Size, &Info);
 166             if (Status == EFI_SUCCESS) {
 167                Status = refit_call2_wrapper(GraphicsOutput->SetMode, GraphicsOutput, ModeNum);
 168                if (Status == EFI_SUCCESS) {
 169                   ModeSet = TRUE;
 170                   *ScreenWidth = Info->HorizontalResolution;
 171                   *ScreenHeight = Info->VerticalResolution;
 172                } // if set mode OK
 173             } // if queried mode OK */
 174 //         } // if/else
 175
 176       // User specified width & height; must find mode -- but only if change is required....
 177       } else {
 178          Status = refit_call4_wrapper(GraphicsOutput->QueryMode, GraphicsOutput, GraphicsOutput->Mode->Mode, &Size, &Info);
 179 //          if ((Status == EFI_SUCCESS) && (Info->HorizontalResolution == *ScreenWidth) &&
 180 //              (Info->VerticalResolution == *ScreenHeight) && !AlwaysSet) {
 181 //             ModeSet = TRUE; // user requested current mode; do nothing
 182 //          } else {
 183             // Do a loop through the modes to see if the specified one is available;
 184             // and if so, switch to it....
 185             do {
 186                Status = refit_call4_wrapper(GraphicsOutput->QueryMode, GraphicsOutput, ModeNum, &Size, &Info);
 187                if ((Status == EFI_SUCCESS) && (Size >= sizeof(*Info)) &&
 188                    (Info->HorizontalResolution == *ScreenWidth) && (Info->VerticalResolution == *ScreenHeight)) {
 189                   Status = refit_call2_wrapper(GraphicsOutput->SetMode, GraphicsOutput, ModeNum);
 190                   ModeSet = (Status == EFI_SUCCESS);
 191                } // if
 192             } while ((++ModeNum < GraphicsOutput->Mode->MaxMode) && !ModeSet);
 193 //         } // if/else
 194       } // if/else
 195
 196       if (ModeSet) {
 197          egScreenWidth = *ScreenWidth;
 198          egScreenHeight = *ScreenHeight;
 199       } else {// If unsuccessful, display an error message for the user....
 200          SwitchToText(FALSE);
 201          Print(L"Error setting graphics mode %d x %d; using default mode!\nAvailable modes are:\n", *ScreenWidth, *ScreenHeight);
 202          ModeNum = 0;
 203          do {
 204             Status = refit_call4_wrapper(GraphicsOutput->QueryMode, GraphicsOutput, ModeNum, &Size, &Info);
 205             if ((Status == EFI_SUCCESS) && (Info != NULL)) {
 206                Print(L"Mode %d: %d x %d\n", ModeNum, Info->HorizontalResolution, Info->VerticalResolution);
 207             } // else
 208          } while (++ModeNum < GraphicsOutput->Mode->MaxMode);
 209          PauseForKey();
 210          SwitchToGraphics();
 211       } // if()
 212
 213    } else if (UgaDraw != NULL) { // UGA mode (EFI 1.x)
 214       // Try to use current color depth & refresh rate for new mode. Maybe not the best choice
 215       // in all cases, but I don't know how to probe for alternatives....
 216       Status = refit_call5_wrapper(UgaDraw->GetMode, UgaDraw, &UGAWidth, &UGAHeight, &UGADepth, &UGARefreshRate);
 217       Status = refit_call5_wrapper(UgaDraw->SetMode, UgaDraw, *ScreenWidth, *ScreenHeight, UGADepth, UGARefreshRate);
 218       if (Status == EFI_SUCCESS) {
 219          egScreenWidth = *ScreenWidth;
 220          egScreenHeight = *ScreenHeight;
 221          ModeSet = TRUE;
 222       } else {
 223          // TODO: Find a list of supported modes and display it.
 224          // NOTE: Below doesn't actually appear unless we explicitly switch to text mode.
 225          // This is just a placeholder until something better can be done....
 226          Print(L"Error setting graphics mode %d x %d; unsupported mode!\n");
 227       } // if/else
 228    } // if/else if
 229    return (ModeSet);
 230 } // BOOLEAN egSetScreenSize()
 231
 232 VOID egGetScreenSize(OUT UINTN *ScreenWidth, OUT UINTN *ScreenHeight)
 233 {
 234     egDetermineScreenSize();
 235
 236     if (ScreenWidth != NULL)
 237         *ScreenWidth = egScreenWidth;
 238     if (ScreenHeight != NULL)
 239         *ScreenHeight = egScreenHeight;
 240 }
 241
 242 // Set a text mode.
 243 // Returns TRUE if the mode actually changed, FALSE otherwise.
 244 // Note that a FALSE return value can mean either an error or no change
 245 // necessary.
 246 BOOLEAN egSetTextMode(UINT32 RequestedMode) {
 247    UINTN         i = 0, Width, Height;
 248    EFI_STATUS    Status;
 249    BOOLEAN       ChangedIt = FALSE;
 250
 251    if (RequestedMode != ST->ConOut->Mode->Mode) {
 252 //      SwitchToGraphics();
 253       Status = refit_call2_wrapper(ST->ConOut->SetMode, ST->ConOut, RequestedMode);
 254       if (Status == EFI_SUCCESS) {
 255          ChangedIt = TRUE;
 256       } else {
 257          SwitchToText(FALSE);
 258          Print(L"Error setting text mode %d; available modes are:\n", RequestedMode);
 259          do {
 260             Status = refit_call4_wrapper(ST->ConOut->QueryMode, ST->ConOut, i, &Width, &Height);
 261             if (Status == EFI_SUCCESS)
 262                Print(L"Mode %d: %d x %d\n", i, Width, Height);
 263          } while (++i < ST->ConOut->Mode->MaxMode);
 264
 265          PauseForKey();
 266          SwitchToGraphics();
 267       } // if/else successful change
 268    } // if need to change mode
 269    return ChangedIt;
 270 } // BOOLEAN egSetTextMode()
 271
 272 CHAR16 * egScreenDescription(VOID)
 273 {
 274     CHAR16 *GraphicsInfo, *TextInfo = NULL;
 275
 276     GraphicsInfo = AllocateZeroPool(256 * sizeof(CHAR16));
 277     if (GraphicsInfo == NULL)
 278        return L"memory allocation error";
 279
 280     if (egHasGraphics) {
 281         if (GraphicsOutput != NULL) {
 282             SPrint(GraphicsInfo, 255, L"Graphics Output (UEFI), %dx%d", egScreenWidth, egScreenHeight);
 283         } else if (UgaDraw != NULL) {
 284             GraphicsInfo = AllocateZeroPool(256 * sizeof(CHAR16));
 285             SPrint(GraphicsInfo, 255, L"UGA Draw (EFI 1.10), %dx%d", egScreenWidth, egScreenHeight);
 286         } else {
 287             MyFreePool(GraphicsInfo);
 288             MyFreePool(TextInfo);
 289             return L"Internal Error";
 290         }
 291         if (!AllowGraphicsMode) { // graphics-capable HW, but in text mode
 292            TextInfo = AllocateZeroPool(256 * sizeof(CHAR16));
 293            SPrint(TextInfo, 255, L"(in %dx%d text mode)", ConWidth, ConHeight);
 294            MergeStrings(&GraphicsInfo, TextInfo, L' ');
 295         }
 296     } else {
 297         SPrint(GraphicsInfo, 255, L"Text-foo console, %dx%d", ConWidth, ConHeight);
 298     }
 299     MyFreePool(TextInfo);
 300     return GraphicsInfo;
 301 }
 302
 303 BOOLEAN egHasGraphicsMode(VOID)
 304 {
 305     return egHasGraphics;
 306 }
 307
 308 BOOLEAN egIsGraphicsModeEnabled(VOID)
 309 {
 310     EFI_CONSOLE_CONTROL_SCREEN_MODE CurrentMode;
 311
 312     if (ConsoleControl != NULL) {
 313         refit_call4_wrapper(ConsoleControl->GetMode, ConsoleControl, &CurrentMode, NULL, NULL);
 314         return (CurrentMode == EfiConsoleControlScreenGraphics) ? TRUE : FALSE;
 315     }
 316
 317     return FALSE;
 318 }
 319
 320 VOID egSetGraphicsModeEnabled(IN BOOLEAN Enable)
 321 {
 322     EFI_CONSOLE_CONTROL_SCREEN_MODE CurrentMode;
 323     EFI_CONSOLE_CONTROL_SCREEN_MODE NewMode;
 324
 325     if (ConsoleControl != NULL) {
 326         refit_call4_wrapper(ConsoleControl->GetMode, ConsoleControl, &CurrentMode, NULL, NULL);
 327
 328         NewMode = Enable ? EfiConsoleControlScreenGraphics
 329                          : EfiConsoleControlScreenText;
 330         if (CurrentMode != NewMode)
 331            refit_call2_wrapper(ConsoleControl->SetMode, ConsoleControl, NewMode);
 332     }
 333 }
 334
 335 //
 336 // Drawing to the screen
 337 //
 338
 339 VOID egClearScreen(IN EG_PIXEL *Color)
 340 {
 341     EFI_UGA_PIXEL FillColor;
 342
 343     if (!egHasGraphics)
 344         return;
 345
 346     if (Color != NULL) {
 347        FillColor.Red   = Color->r;
 348        FillColor.Green = Color->g;
 349        FillColor.Blue  = Color->b;
 350     } else {
 351        FillColor.Red   = 0x0;
 352        FillColor.Green = 0x0;
 353        FillColor.Blue  = 0x0;
 354     }
 355     FillColor.Reserved = 0;
 356
 357     if (GraphicsOutput != NULL) {
 358         // EFI_GRAPHICS_OUTPUT_BLT_PIXEL and EFI_UGA_PIXEL have the same
 359         // layout, and the header from TianoCore actually defines them
 360         // to be the same type.
 361         refit_call10_wrapper(GraphicsOutput->Blt, GraphicsOutput, (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *)&FillColor, EfiBltVideoFill,
 362                              0, 0, 0, 0, egScreenWidth, egScreenHeight, 0);
 363     } else if (UgaDraw != NULL) {
 364         refit_call10_wrapper(UgaDraw->Blt, UgaDraw, &FillColor, EfiUgaVideoFill, 0, 0, 0, 0, egScreenWidth, egScreenHeight, 0);
 365     }
 366 }
 367
 368 VOID egDrawImage(IN EG_IMAGE *Image, IN UINTN ScreenPosX, IN UINTN ScreenPosY)
 369 {
 370     if (!egHasGraphics)
 371         return;
 372
 373     if (Image->HasAlpha) {
 374         Image->HasAlpha = FALSE;
 375         egSetPlane(PLPTR(Image, a), 0, Image->Width * Image->Height);
 376     }
 377
 378     if (GraphicsOutput != NULL) {
 379         refit_call10_wrapper(GraphicsOutput->Blt, GraphicsOutput, (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *)Image->PixelData, EfiBltBufferToVideo,
 380                             0, 0, ScreenPosX, ScreenPosY, Image->Width, Image->Height, 0);
 381     } else if (UgaDraw != NULL) {
 382         refit_call10_wrapper(UgaDraw->Blt, UgaDraw, (EFI_UGA_PIXEL *)Image->PixelData, EfiUgaBltBufferToVideo,
 383                      0, 0, ScreenPosX, ScreenPosY, Image->Width, Image->Height, 0);
 384     }
 385 }
 386
 387 VOID egDrawImageArea(IN EG_IMAGE *Image,
 388                      IN UINTN AreaPosX, IN UINTN AreaPosY,
 389                      IN UINTN AreaWidth, IN UINTN AreaHeight,
 390                      IN UINTN ScreenPosX, IN UINTN ScreenPosY)
 391 {
 392     if (!egHasGraphics)
 393         return;
 394
 395     egRestrictImageArea(Image, AreaPosX, AreaPosY, &AreaWidth, &AreaHeight);
 396     if (AreaWidth == 0)
 397         return;
 398
 399     if (Image->HasAlpha) {
 400         Image->HasAlpha = FALSE;
 401         egSetPlane(PLPTR(Image, a), 0, Image->Width * Image->Height);
 402     }
 403
 404     if (GraphicsOutput != NULL) {
 405         refit_call10_wrapper(GraphicsOutput->Blt, GraphicsOutput, (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *)Image->PixelData, EfiBltBufferToVideo,
 406                             AreaPosX, AreaPosY, ScreenPosX, ScreenPosY, AreaWidth, AreaHeight, Image->Width * 4);
 407     } else if (UgaDraw != NULL) {
 408         refit_call10_wrapper(UgaDraw->Blt, UgaDraw, (EFI_UGA_PIXEL *)Image->PixelData, EfiUgaBltBufferToVideo,
 409                      AreaPosX, AreaPosY, ScreenPosX, ScreenPosY, AreaWidth, AreaHeight, Image->Width * 4);
 410     }
 411 }
 412
 413 // Display a message in the center of the screen, surrounded by a box of the
 414 // specified color. For the moment, uses graphics calls only. (It still works
 415 // in text mode on GOP/UEFI systems, but not on UGA/EFI 1.x systems.)
 416 VOID egDisplayMessage(IN CHAR16 *Text, EG_PIXEL *BGColor) {
 417    UINTN BoxWidth, BoxHeight;
 418    EG_IMAGE *Box;
 419
 420    if ((Text != NULL) && (BGColor != NULL)) {
 421       BoxWidth = (StrLen(Text) + 2) * FONT_CELL_WIDTH;
 422       if (BoxWidth > egScreenWidth)
 423          BoxWidth = egScreenWidth;
 424       BoxHeight = 2 * FONT_CELL_HEIGHT;
 425       Box = egCreateFilledImage(BoxWidth, BoxHeight, FALSE, BGColor);
 426       egRenderText(Text, Box, FONT_CELL_WIDTH, FONT_CELL_HEIGHT / 2);
 427       egDrawImage(Box, (egScreenWidth - BoxWidth) / 2, (egScreenHeight - BoxHeight) / 2);
 428    } // if non-NULL inputs
 429 } // VOID egDisplayMessage()
 430
 431 //
 432 // Make a screenshot
 433 //
 434
 435 VOID egScreenShot(VOID)
 436 {
 437     EFI_STATUS      Status;
 438     EG_IMAGE        *Image;
 439     UINT8           *FileData;
 440     UINTN           FileDataLength;
 441     UINTN           Index;
 442
 443     if (!egHasGraphics)
 444         return;
 445
 446     // allocate a buffer for the whole screen
 447     Image = egCreateImage(egScreenWidth, egScreenHeight, FALSE);
 448     if (Image == NULL) {
 449         Print(L"Error egCreateImage returned NULL\n");
 450         goto bailout_wait;
 451     }
 452
 453     // get full screen image
 454     if (GraphicsOutput != NULL) {
 455         refit_call10_wrapper(GraphicsOutput->Blt, GraphicsOutput, (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *)Image->PixelData, EfiBltVideoToBltBuffer,
 456                             0, 0, 0, 0, Image->Width, Image->Height, 0);
 457     } else if (UgaDraw != NULL) {
 458         refit_call10_wrapper(UgaDraw->Blt, UgaDraw, (EFI_UGA_PIXEL *)Image->PixelData, EfiUgaVideoToBltBuffer,
 459                      0, 0, 0, 0, Image->Width, Image->Height, 0);
 460     }
 461
 462     // encode as BMP
 463     egEncodeBMP(Image, &FileData, &FileDataLength);
 464     egFreeImage(Image);
 465     if (FileData == NULL) {
 466         Print(L"Error egEncodeBMP returned NULL\n");
 467         goto bailout_wait;
 468     }
 469
 470     // save to file on the ESP
 471     Status = egSaveFile(NULL, L"screenshot.bmp", FileData, FileDataLength);
 472     FreePool(FileData);
 473     if (EFI_ERROR(Status)) {
 474         Print(L"Error egSaveFile: %x\n", Status);
 475         goto bailout_wait;
 476     }
 477
 478     return;
 479
 480     // DEBUG: switch to text mode
 481 bailout_wait:
 482     egSetGraphicsModeEnabled(FALSE);
 483     refit_call3_wrapper(BS->WaitForEvent, 1, &ST->ConIn->WaitForKey, &Index);
 484 }
 485
 486 /* EOF */