3 * Screen handling functions
5 * Copyright (c) 2006 Christoph Pfisterer
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
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
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.
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.
37 * Modifications copyright (c) 2012 Roderick W. Smith
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.
46 #include "../refind/screen.h"
47 #include "../refind/lib.h"
48 #include "../include/refit_call_wrapper.h"
50 #include <efiUgaDraw.h>
51 #include <efiConsoleControl.h>
53 #ifndef __MAKEWITH_GNUEFI
54 #define LibLocateProtocol EfiLibLocateProtocol
57 // Console defines and variables
59 static EFI_GUID ConsoleControlProtocolGuid
= EFI_CONSOLE_CONTROL_PROTOCOL_GUID
;
60 static EFI_CONSOLE_CONTROL_PROTOCOL
*ConsoleControl
= NULL
;
62 static EFI_GUID UgaDrawProtocolGuid
= EFI_UGA_DRAW_PROTOCOL_GUID
;
63 static EFI_UGA_DRAW_PROTOCOL
*UgaDraw
= NULL
;
65 static EFI_GUID GraphicsOutputProtocolGuid
= EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID
;
66 static EFI_GRAPHICS_OUTPUT_PROTOCOL
*GraphicsOutput
= NULL
;
68 static BOOLEAN egHasGraphics
= FALSE
;
69 static UINTN egScreenWidth
= 800;
70 static UINTN egScreenHeight
= 600;
76 // Make the necessary system calls to identify the current graphics mode.
77 // Stores the results in the file-global variables egScreenWidth,
78 // egScreenHeight, and egHasGraphics. The first two of these will be
79 // unchanged if neither GraphicsOutput nor UgaDraw is a valid pointer.
80 static VOID
egDetermineScreenSize(VOID
) {
81 EFI_STATUS Status
= EFI_SUCCESS
;
82 UINT32 UGAWidth
, UGAHeight
, UGADepth
, UGARefreshRate
;
85 egHasGraphics
= FALSE
;
86 if (GraphicsOutput
!= NULL
) {
87 egScreenWidth
= GraphicsOutput
->Mode
->Info
->HorizontalResolution
;
88 egScreenHeight
= GraphicsOutput
->Mode
->Info
->VerticalResolution
;
90 } else if (UgaDraw
!= NULL
) {
91 Status
= refit_call5_wrapper(UgaDraw
->GetMode
, UgaDraw
, &UGAWidth
, &UGAHeight
, &UGADepth
, &UGARefreshRate
);
92 if (EFI_ERROR(Status
)) {
93 UgaDraw
= NULL
; // graphics not available
95 egScreenWidth
= UGAWidth
;
96 egScreenHeight
= UGAHeight
;
100 } // static VOID egDetermineScreenSize()
102 VOID
egGetScreenSize(OUT UINTN
*ScreenWidth
, OUT UINTN
*ScreenHeight
)
104 egDetermineScreenSize();
106 if (ScreenWidth
!= NULL
)
107 *ScreenWidth
= egScreenWidth
;
108 if (ScreenHeight
!= NULL
)
109 *ScreenHeight
= egScreenHeight
;
112 VOID
egInitScreen(VOID
)
114 EFI_STATUS Status
= EFI_SUCCESS
;
117 Status
= LibLocateProtocol(&ConsoleControlProtocolGuid
, (VOID
**) &ConsoleControl
);
118 if (EFI_ERROR(Status
))
119 ConsoleControl
= NULL
;
121 Status
= LibLocateProtocol(&UgaDrawProtocolGuid
, (VOID
**) &UgaDraw
);
122 if (EFI_ERROR(Status
))
125 Status
= LibLocateProtocol(&GraphicsOutputProtocolGuid
, (VOID
**) &GraphicsOutput
);
126 if (EFI_ERROR(Status
))
127 GraphicsOutput
= NULL
;
129 egDetermineScreenSize();
132 // Convert a graphics mode (in *ModeWidth) to a width and height (returned in
133 // *ModeWidth and *Height, respectively).
134 // Returns TRUE if successful, FALSE if not (invalid mode, typically)
135 BOOLEAN
egGetResFromMode(UINTN
*ModeWidth
, UINTN
*Height
) {
138 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*Info
= NULL
;
140 if ((ModeWidth
!= NULL
) && (Height
!= NULL
)) {
141 Status
= refit_call4_wrapper(GraphicsOutput
->QueryMode
, GraphicsOutput
, *ModeWidth
, &Size
, &Info
);
142 if ((Status
== EFI_SUCCESS
) && (Info
!= NULL
)) {
143 *ModeWidth
= Info
->HorizontalResolution
;
144 *Height
= Info
->VerticalResolution
;
149 } // BOOLEAN egGetResFromMode()
151 // Sets the screen resolution to the specified value, if possible. If *ScreenHeight
152 // is 0 and GOP mode is detected, assume that *ScreenWidth contains a GOP mode
153 // number rather than a horizontal resolution. If the specified resolution is not
154 // valid, displays a warning with the valid modes on GOP (UEFI) systems, or silently
155 // fails on UGA (EFI 1.x) systems. Note that this function attempts to set ANY screen
156 // resolution, even 0x0 or ridiculously large values.
157 // Upon success, returns actual screen resolution in *ScreenWidth and *ScreenHeight.
158 // These values are unchanged upon failure.
159 // Returns TRUE if successful, FALSE if not.
160 BOOLEAN
egSetScreenSize(IN OUT UINTN
*ScreenWidth
, IN OUT UINTN
*ScreenHeight
) {
161 EFI_STATUS Status
= EFI_SUCCESS
;
162 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
*Info
;
165 UINT32 UGAWidth
, UGAHeight
, UGADepth
, UGARefreshRate
;
166 BOOLEAN ModeSet
= FALSE
;
168 if ((ScreenWidth
== NULL
) || (ScreenHeight
== NULL
))
171 if (GraphicsOutput
!= NULL
) { // GOP mode (UEFI)
172 if (*ScreenHeight
== 0) { // User specified a mode number (stored in *ScreenWidth); use it directly
173 ModeNum
= (UINT32
) *ScreenWidth
;
174 if (egGetResFromMode(ScreenWidth
, ScreenHeight
) &&
175 (refit_call2_wrapper(GraphicsOutput
->SetMode
, GraphicsOutput
, ModeNum
) == EFI_SUCCESS
)) {
179 // User specified width & height; must find mode...
181 // Do a loop through the modes to see if the specified one is available;
182 // and if so, switch to it....
184 Status
= refit_call4_wrapper(GraphicsOutput
->QueryMode
, GraphicsOutput
, ModeNum
, &Size
, &Info
);
185 if ((Status
== EFI_SUCCESS
) && (Size
>= sizeof(*Info
) && (Info
!= NULL
)) &&
186 (Info
->HorizontalResolution
== *ScreenWidth
) && (Info
->VerticalResolution
== *ScreenHeight
)) {
187 Status
= refit_call2_wrapper(GraphicsOutput
->SetMode
, GraphicsOutput
, ModeNum
);
188 ModeSet
= (Status
== EFI_SUCCESS
);
190 } while ((++ModeNum
< GraphicsOutput
->Mode
->MaxMode
) && !ModeSet
);
194 egScreenWidth
= *ScreenWidth
;
195 egScreenHeight
= *ScreenHeight
;
196 } else {// If unsuccessful, display an error message for the user....
198 Print(L
"Error setting graphics mode %d x %d; using default mode!\nAvailable modes are:\n", *ScreenWidth
, *ScreenHeight
);
201 Status
= refit_call4_wrapper(GraphicsOutput
->QueryMode
, GraphicsOutput
, ModeNum
, &Size
, &Info
);
202 if ((Status
== EFI_SUCCESS
) && (Info
!= NULL
)) {
203 Print(L
"Mode %d: %d x %d\n", ModeNum
, Info
->HorizontalResolution
, Info
->VerticalResolution
);
205 } while (++ModeNum
< GraphicsOutput
->Mode
->MaxMode
);
208 } // if GOP mode (UEFI)
210 } else if (UgaDraw
!= NULL
) { // UGA mode (EFI 1.x)
211 // Try to use current color depth & refresh rate for new mode. Maybe not the best choice
212 // in all cases, but I don't know how to probe for alternatives....
213 Status
= refit_call5_wrapper(UgaDraw
->GetMode
, UgaDraw
, &UGAWidth
, &UGAHeight
, &UGADepth
, &UGARefreshRate
);
214 Status
= refit_call5_wrapper(UgaDraw
->SetMode
, UgaDraw
, *ScreenWidth
, *ScreenHeight
, UGADepth
, UGARefreshRate
);
215 if (Status
== EFI_SUCCESS
) {
216 egScreenWidth
= *ScreenWidth
;
217 egScreenHeight
= *ScreenHeight
;
220 // TODO: Find a list of supported modes and display it.
221 // NOTE: Below doesn't actually appear unless we explicitly switch to text mode.
222 // This is just a placeholder until something better can be done....
223 Print(L
"Error setting graphics mode %d x %d; unsupported mode!\n");
225 } // if/else if UGA mode (EFI 1.x)
227 } // BOOLEAN egSetScreenSize()
230 // Returns TRUE if the mode actually changed, FALSE otherwise.
231 // Note that a FALSE return value can mean either an error or no change
233 BOOLEAN
egSetTextMode(UINT32 RequestedMode
) {
234 UINTN i
= 0, Width
, Height
;
236 BOOLEAN ChangedIt
= FALSE
;
238 if ((RequestedMode
!= DONT_CHANGE_TEXT_MODE
) && (RequestedMode
!= ST
->ConOut
->Mode
->Mode
)) {
239 // SwitchToGraphics();
240 Status
= refit_call2_wrapper(ST
->ConOut
->SetMode
, ST
->ConOut
, RequestedMode
);
241 if (Status
== EFI_SUCCESS
) {
245 Print(L
"\nError setting text mode %d; available modes are:\n", RequestedMode
);
247 Status
= refit_call4_wrapper(ST
->ConOut
->QueryMode
, ST
->ConOut
, i
, &Width
, &Height
);
248 if (Status
== EFI_SUCCESS
)
249 Print(L
"Mode %d: %d x %d\n", i
, Width
, Height
);
250 } while (++i
< ST
->ConOut
->Mode
->MaxMode
);
251 Print(L
"Mode %d: Use default mode\n", DONT_CHANGE_TEXT_MODE
);
255 } // if/else successful change
256 } // if need to change mode
258 } // BOOLEAN egSetTextMode()
260 CHAR16
* egScreenDescription(VOID
)
262 CHAR16
*GraphicsInfo
, *TextInfo
= NULL
;
264 GraphicsInfo
= AllocateZeroPool(256 * sizeof(CHAR16
));
265 if (GraphicsInfo
== NULL
)
266 return L
"memory allocation error";
269 if (GraphicsOutput
!= NULL
) {
270 SPrint(GraphicsInfo
, 255, L
"Graphics Output (UEFI), %dx%d", egScreenWidth
, egScreenHeight
);
271 } else if (UgaDraw
!= NULL
) {
272 GraphicsInfo
= AllocateZeroPool(256 * sizeof(CHAR16
));
273 SPrint(GraphicsInfo
, 255, L
"UGA Draw (EFI 1.10), %dx%d", egScreenWidth
, egScreenHeight
);
275 MyFreePool(GraphicsInfo
);
276 MyFreePool(TextInfo
);
277 return L
"Internal Error";
279 if (!AllowGraphicsMode
) { // graphics-capable HW, but in text mode
280 TextInfo
= AllocateZeroPool(256 * sizeof(CHAR16
));
281 SPrint(TextInfo
, 255, L
"(in %dx%d text mode)", ConWidth
, ConHeight
);
282 MergeStrings(&GraphicsInfo
, TextInfo
, L
' ');
285 SPrint(GraphicsInfo
, 255, L
"Text-foo console, %dx%d", ConWidth
, ConHeight
);
287 MyFreePool(TextInfo
);
291 BOOLEAN
egHasGraphicsMode(VOID
)
293 return egHasGraphics
;
296 BOOLEAN
egIsGraphicsModeEnabled(VOID
)
298 EFI_CONSOLE_CONTROL_SCREEN_MODE CurrentMode
;
300 if (ConsoleControl
!= NULL
) {
301 refit_call4_wrapper(ConsoleControl
->GetMode
, ConsoleControl
, &CurrentMode
, NULL
, NULL
);
302 return (CurrentMode
== EfiConsoleControlScreenGraphics
) ? TRUE
: FALSE
;
308 VOID
egSetGraphicsModeEnabled(IN BOOLEAN Enable
)
310 EFI_CONSOLE_CONTROL_SCREEN_MODE CurrentMode
;
311 EFI_CONSOLE_CONTROL_SCREEN_MODE NewMode
;
313 if (ConsoleControl
!= NULL
) {
314 refit_call4_wrapper(ConsoleControl
->GetMode
, ConsoleControl
, &CurrentMode
, NULL
, NULL
);
316 NewMode
= Enable
? EfiConsoleControlScreenGraphics
317 : EfiConsoleControlScreenText
;
318 if (CurrentMode
!= NewMode
)
319 refit_call2_wrapper(ConsoleControl
->SetMode
, ConsoleControl
, NewMode
);
324 // Drawing to the screen
327 VOID
egClearScreen(IN EG_PIXEL
*Color
)
329 EFI_UGA_PIXEL FillColor
;
335 FillColor
.Red
= Color
->r
;
336 FillColor
.Green
= Color
->g
;
337 FillColor
.Blue
= Color
->b
;
340 FillColor
.Green
= 0x0;
341 FillColor
.Blue
= 0x0;
343 FillColor
.Reserved
= 0;
345 if (GraphicsOutput
!= NULL
) {
346 // EFI_GRAPHICS_OUTPUT_BLT_PIXEL and EFI_UGA_PIXEL have the same
347 // layout, and the header from TianoCore actually defines them
348 // to be the same type.
349 refit_call10_wrapper(GraphicsOutput
->Blt
, GraphicsOutput
, (EFI_GRAPHICS_OUTPUT_BLT_PIXEL
*)&FillColor
, EfiBltVideoFill
,
350 0, 0, 0, 0, egScreenWidth
, egScreenHeight
, 0);
351 } else if (UgaDraw
!= NULL
) {
352 refit_call10_wrapper(UgaDraw
->Blt
, UgaDraw
, &FillColor
, EfiUgaVideoFill
, 0, 0, 0, 0, egScreenWidth
, egScreenHeight
, 0);
356 VOID
egDrawImage(IN EG_IMAGE
*Image
, IN UINTN ScreenPosX
, IN UINTN ScreenPosY
)
358 EG_IMAGE
*CompImage
= NULL
;
360 // NOTE: Weird seemingly redundant tests because some placement code can "wrap around" and
361 // send "negative" values, which of course become very large unsigned ints that can then
362 // wrap around AGAIN if values are added to them.....
363 if (!egHasGraphics
|| ((ScreenPosX
+ Image
->Width
) > egScreenWidth
) || ((ScreenPosY
+ Image
->Height
) > egScreenHeight
) ||
364 (ScreenPosX
> egScreenWidth
) || (ScreenPosY
> egScreenHeight
))
367 if ((GlobalConfig
.ScreenBackground
== NULL
) || ((Image
->Width
== egScreenWidth
) && (Image
->Height
== egScreenHeight
))) {
369 } else if (GlobalConfig
.ScreenBackground
== Image
) {
370 CompImage
= GlobalConfig
.ScreenBackground
;
372 CompImage
= egCropImage(GlobalConfig
.ScreenBackground
, ScreenPosX
, ScreenPosY
, Image
->Width
, Image
->Height
);
373 if (CompImage
== NULL
) {
374 Print(L
"Error! Can't crop image in egDrawImage()!\n");
377 egComposeImage(CompImage
, Image
, 0, 0);
380 if (GraphicsOutput
!= NULL
) {
381 refit_call10_wrapper(GraphicsOutput
->Blt
, GraphicsOutput
, (EFI_GRAPHICS_OUTPUT_BLT_PIXEL
*)CompImage
->PixelData
,
382 EfiBltBufferToVideo
, 0, 0, ScreenPosX
, ScreenPosY
, CompImage
->Width
, CompImage
->Height
, 0);
383 } else if (UgaDraw
!= NULL
) {
384 refit_call10_wrapper(UgaDraw
->Blt
, UgaDraw
, (EFI_UGA_PIXEL
*)CompImage
->PixelData
, EfiUgaBltBufferToVideo
,
385 0, 0, ScreenPosX
, ScreenPosY
, CompImage
->Width
, CompImage
->Height
, 0);
387 if ((CompImage
!= GlobalConfig
.ScreenBackground
) && (CompImage
!= Image
))
388 egFreeImage(CompImage
);
389 } /* VOID egDrawImage() */
391 // Display an unselected icon on the screen, so that the background image shows
392 // through the transparency areas. The BadgeImage may be NULL, in which case
393 // it's not composited in.
394 VOID
egDrawImageWithTransparency(EG_IMAGE
*Image
, EG_IMAGE
*BadgeImage
, UINTN XPos
, UINTN YPos
, UINTN Width
, UINTN Height
) {
395 EG_IMAGE
*Background
;
397 Background
= egCropImage(GlobalConfig
.ScreenBackground
, XPos
, YPos
, Width
, Height
);
398 if (Background
!= NULL
) {
399 BltImageCompositeBadge(Background
, Image
, BadgeImage
, XPos
, YPos
);
400 egFreeImage(Background
);
402 } // VOID DrawImageWithTransparency()
404 VOID
egDrawImageArea(IN EG_IMAGE
*Image
,
405 IN UINTN AreaPosX
, IN UINTN AreaPosY
,
406 IN UINTN AreaWidth
, IN UINTN AreaHeight
,
407 IN UINTN ScreenPosX
, IN UINTN ScreenPosY
)
412 egRestrictImageArea(Image
, AreaPosX
, AreaPosY
, &AreaWidth
, &AreaHeight
);
416 if (GraphicsOutput
!= NULL
) {
417 refit_call10_wrapper(GraphicsOutput
->Blt
, GraphicsOutput
, (EFI_GRAPHICS_OUTPUT_BLT_PIXEL
*)Image
->PixelData
,
418 EfiBltBufferToVideo
, AreaPosX
, AreaPosY
, ScreenPosX
, ScreenPosY
, AreaWidth
, AreaHeight
,
420 } else if (UgaDraw
!= NULL
) {
421 refit_call10_wrapper(UgaDraw
->Blt
, UgaDraw
, (EFI_UGA_PIXEL
*)Image
->PixelData
, EfiUgaBltBufferToVideo
,
422 AreaPosX
, AreaPosY
, ScreenPosX
, ScreenPosY
, AreaWidth
, AreaHeight
, Image
->Width
* 4);
426 // Display a message in the center of the screen, surrounded by a box of the
427 // specified color. For the moment, uses graphics calls only. (It still works
428 // in text mode on GOP/UEFI systems, but not on UGA/EFI 1.x systems.)
429 VOID
egDisplayMessage(IN CHAR16
*Text
, EG_PIXEL
*BGColor
) {
430 UINTN BoxWidth
, BoxHeight
;
433 if ((Text
!= NULL
) && (BGColor
!= NULL
)) {
434 BoxWidth
= (StrLen(Text
) + 2) * FONT_CELL_WIDTH
;
435 if (BoxWidth
> egScreenWidth
)
436 BoxWidth
= egScreenWidth
;
437 BoxHeight
= 2 * FONT_CELL_HEIGHT
;
438 Box
= egCreateFilledImage(BoxWidth
, BoxHeight
, FALSE
, BGColor
);
439 egRenderText(Text
, Box
, FONT_CELL_WIDTH
, FONT_CELL_HEIGHT
/ 2, (BGColor
->r
+ BGColor
->g
+ BGColor
->b
) / 3);
440 egDrawImage(Box
, (egScreenWidth
- BoxWidth
) / 2, (egScreenHeight
- BoxHeight
) / 2);
441 } // if non-NULL inputs
442 } // VOID egDisplayMessage()
444 // Copy the current contents of the display into an EG_IMAGE....
445 // Returns pointer if successful, NULL if not.
446 EG_IMAGE
* egCopyScreen(VOID
) {
447 EG_IMAGE
*Image
= NULL
;
452 // allocate a buffer for the whole screen
453 Image
= egCreateImage(egScreenWidth
, egScreenHeight
, FALSE
);
458 // get full screen image
459 if (GraphicsOutput
!= NULL
) {
460 refit_call10_wrapper(GraphicsOutput
->Blt
, GraphicsOutput
, (EFI_GRAPHICS_OUTPUT_BLT_PIXEL
*)Image
->PixelData
,
461 EfiBltVideoToBltBuffer
, 0, 0, 0, 0, Image
->Width
, Image
->Height
, 0);
462 } else if (UgaDraw
!= NULL
) {
463 refit_call10_wrapper(UgaDraw
->Blt
, UgaDraw
, (EFI_UGA_PIXEL
*)Image
->PixelData
, EfiUgaVideoToBltBuffer
,
464 0, 0, 0, 0, Image
->Width
, Image
->Height
, 0);
467 } // EG_IMAGE * egCopyScreen()
473 VOID
egScreenShot(VOID
)
478 UINTN FileDataLength
;
481 Image
= egCopyScreen();
483 Print(L
"Error: Unable to take screen shot\n");
488 egEncodeBMP(Image
, &FileData
, &FileDataLength
);
490 if (FileData
== NULL
) {
491 Print(L
"Error egEncodeBMP returned NULL\n");
495 // save to file on the ESP
496 Status
= egSaveFile(NULL
, L
"screenshot.bmp", FileData
, FileDataLength
);
498 if (EFI_ERROR(Status
)) {
499 Print(L
"Error egSaveFile: %x\n", Status
);
505 // DEBUG: switch to text mode
507 egSetGraphicsModeEnabled(FALSE
);
508 refit_call3_wrapper(BS
->WaitForEvent
, 1, &ST
->ConIn
->WaitForKey
, &Index
);