* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+/*
+ * Modifications copyright (c) 2012 Roderick W. Smith
+ *
+ * Modifications distributed under the terms of the GNU General Public
+ * License (GPL) version 3 (GPLv3), a copy of which must be distributed
+ * with this source code or binaries made from it.
+ *
+ */
#include "libegint.h"
#include "../refind/screen.h"
+#include "../refind/lib.h"
#include "../include/refit_call_wrapper.h"
#include <efiUgaDraw.h>
// Screen handling
//
-VOID egInitScreen(VOID)
-{
+// Make the necessary system calls to identify the current graphics mode.
+// Stores the results in the file-global variables egScreenWidth,
+// egScreenHeight, and egHasGraphics. The first two of these will be
+// unchanged if neither GraphicsOutput nor UgaDraw is a valid pointer.
+static VOID egDetermineScreenSize(VOID) {
EFI_STATUS Status = EFI_SUCCESS;
UINT32 UGAWidth, UGAHeight, UGADepth, UGARefreshRate;
- // get protocols
- Status = LibLocateProtocol(&ConsoleControlProtocolGuid, (VOID **) &ConsoleControl);
- if (EFI_ERROR(Status))
- ConsoleControl = NULL;
-
- Status = LibLocateProtocol(&UgaDrawProtocolGuid, (VOID **) &UgaDraw);
- if (EFI_ERROR(Status))
- UgaDraw = NULL;
-
- Status = LibLocateProtocol(&GraphicsOutputProtocolGuid, (VOID **) &GraphicsOutput);
- if (EFI_ERROR(Status))
- GraphicsOutput = NULL;
-
// get screen size
egHasGraphics = FALSE;
if (GraphicsOutput != NULL) {
egHasGraphics = TRUE;
}
}
+} // static VOID egDetermineScreenSize()
+
+VOID egGetScreenSize(OUT UINTN *ScreenWidth, OUT UINTN *ScreenHeight)
+{
+ egDetermineScreenSize();
+
+ if (ScreenWidth != NULL)
+ *ScreenWidth = egScreenWidth;
+ if (ScreenHeight != NULL)
+ *ScreenHeight = egScreenHeight;
+}
+
+VOID egInitScreen(VOID)
+{
+ EFI_STATUS Status = EFI_SUCCESS;
+
+ // get protocols
+ Status = LibLocateProtocol(&ConsoleControlProtocolGuid, (VOID **) &ConsoleControl);
+ if (EFI_ERROR(Status))
+ ConsoleControl = NULL;
+
+ Status = LibLocateProtocol(&UgaDrawProtocolGuid, (VOID **) &UgaDraw);
+ if (EFI_ERROR(Status))
+ UgaDraw = NULL;
+
+ Status = LibLocateProtocol(&GraphicsOutputProtocolGuid, (VOID **) &GraphicsOutput);
+ if (EFI_ERROR(Status))
+ GraphicsOutput = NULL;
+
+ egDetermineScreenSize();
}
-// // Returns current graphics mode number
-// UINT32 egGetGraphicsMode(VOID) {
-// UINT32 retval = 0;
-//
-// if (GraphicsOutput != NULL) {
-// retval = GraphicsOutput->Mode->Mode;
-// }
-//
-// return retval;
-// } // UINT32 egGetGraphicsMode()
-
-// Sets the screen resolution to the specified value, if possible.
-// If the specified value is not valid, displays a warning with the valid
-// modes on UEFI systems, or silently fails on EFI 1.x systems. Note that
-// this function attempts to set ANY screen resolution, even 0x0 or
-// ridiculously large values.
+// Convert a graphics mode (in *ModeWidth) to a width and height (returned in
+// *ModeWidth and *Height, respectively).
+// Returns TRUE if successful, FALSE if not (invalid mode, typically)
+BOOLEAN egGetResFromMode(UINTN *ModeWidth, UINTN *Height) {
+ UINTN Size;
+ EFI_STATUS Status;
+ EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info = NULL;
+
+ if ((ModeWidth != NULL) && (Height != NULL)) {
+ Status = refit_call4_wrapper(GraphicsOutput->QueryMode, GraphicsOutput, *ModeWidth, &Size, &Info);
+ if ((Status == EFI_SUCCESS) && (Info != NULL)) {
+ *ModeWidth = Info->HorizontalResolution;
+ *Height = Info->VerticalResolution;
+ return TRUE;
+ }
+ }
+ return FALSE;
+} // BOOLEAN egGetResFromMode()
+
+// Sets the screen resolution to the specified value, if possible. If *ScreenHeight
+// is 0 and GOP mode is detected, assume that *ScreenWidth contains a GOP mode
+// number rather than a horizontal resolution. If the specified resolution is not
+// valid, displays a warning with the valid modes on GOP (UEFI) systems, or silently
+// fails on UGA (EFI 1.x) systems. Note that this function attempts to set ANY screen
+// resolution, even 0x0 or ridiculously large values.
+// Upon success, returns actual screen resolution in *ScreenWidth and *ScreenHeight.
+// These values are unchanged upon failure.
// Returns TRUE if successful, FALSE if not.
-BOOLEAN egSetScreenSize(IN UINTN ScreenWidth, IN UINTN ScreenHeight) {
- EFI_STATUS Status = EFI_SUCCESS;
- EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
- UINT32 ModeNum = 0;
- UINTN Size;
- BOOLEAN ModeSet = FALSE;
- UINT32 UGAWidth, UGAHeight, UGADepth, UGARefreshRate;
+BOOLEAN egSetScreenSize(IN OUT UINTN *ScreenWidth, IN OUT UINTN *ScreenHeight) {
+ EFI_STATUS Status = EFI_SUCCESS;
+ EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
+ UINTN Size;
+ UINT32 ModeNum = 0;
+ UINT32 UGAWidth, UGAHeight, UGADepth, UGARefreshRate;
+ BOOLEAN ModeSet = FALSE;
+
+ if ((ScreenWidth == NULL) || (ScreenHeight == NULL))
+ return FALSE;
if (GraphicsOutput != NULL) { // GOP mode (UEFI)
- // Do a loop through the modes to see if the specified one is available;
- // and if so, switch to it....
- while ((Status == EFI_SUCCESS) && (!ModeSet)) {
- Status = refit_call4_wrapper(GraphicsOutput->QueryMode, GraphicsOutput, ModeNum, &Size, &Info);
- if ((Status == EFI_SUCCESS) && (Size >= sizeof(*Info)) &&
- (Info->HorizontalResolution == ScreenWidth) && (Info->VerticalResolution == ScreenHeight)) {
- Status = refit_call2_wrapper(GraphicsOutput->SetMode, GraphicsOutput, ModeNum);
-// if (Status == EFI_SUCCESS)
-// Status = refit_call2_wrapper(ST->ConOut->SetMode, ST->ConOut, ModeNum);
- ModeSet = (Status == EFI_SUCCESS);
- } // if
- ModeNum++;
- } // while()
+ if (*ScreenHeight == 0) { // User specified a mode number (stored in *ScreenWidth); use it directly
+ ModeNum = (UINT32) *ScreenWidth;
+ if (egGetResFromMode(ScreenWidth, ScreenHeight) &&
+ (refit_call2_wrapper(GraphicsOutput->SetMode, GraphicsOutput, ModeNum) == EFI_SUCCESS)) {
+ ModeSet = TRUE;
+ }
+
+ // User specified width & height; must find mode...
+ } else {
+ // Do a loop through the modes to see if the specified one is available;
+ // and if so, switch to it....
+ do {
+ Status = refit_call4_wrapper(GraphicsOutput->QueryMode, GraphicsOutput, ModeNum, &Size, &Info);
+ if ((Status == EFI_SUCCESS) && (Size >= sizeof(*Info) && (Info != NULL)) &&
+ (Info->HorizontalResolution == *ScreenWidth) && (Info->VerticalResolution == *ScreenHeight)) {
+ Status = refit_call2_wrapper(GraphicsOutput->SetMode, GraphicsOutput, ModeNum);
+ ModeSet = (Status == EFI_SUCCESS);
+ } // if
+ } while ((++ModeNum < GraphicsOutput->Mode->MaxMode) && !ModeSet);
+ } // if/else
if (ModeSet) {
- egScreenWidth = ScreenWidth;
- egScreenHeight = ScreenHeight;
+ egScreenWidth = *ScreenWidth;
+ egScreenHeight = *ScreenHeight;
} else {// If unsuccessful, display an error message for the user....
SwitchToText(FALSE);
- Print(L"Error setting mode %d x %d; using default mode!\nAvailable modes are:\n", ScreenWidth, ScreenHeight);
+ Print(L"Error setting graphics mode %d x %d; using default mode!\nAvailable modes are:\n", *ScreenWidth, *ScreenHeight);
ModeNum = 0;
- Status = EFI_SUCCESS;
- while (Status == EFI_SUCCESS) {
+ do {
Status = refit_call4_wrapper(GraphicsOutput->QueryMode, GraphicsOutput, ModeNum, &Size, &Info);
- if ((Status == EFI_SUCCESS) && (Size >= sizeof(*Info))) {
+ if ((Status == EFI_SUCCESS) && (Info != NULL)) {
Print(L"Mode %d: %d x %d\n", ModeNum, Info->HorizontalResolution, Info->VerticalResolution);
} // else
- ModeNum++;
- } // while()
+ } while (++ModeNum < GraphicsOutput->Mode->MaxMode);
PauseForKey();
SwitchToGraphics();
- } // if()
+ } // if GOP mode (UEFI)
+
} else if (UgaDraw != NULL) { // UGA mode (EFI 1.x)
// Try to use current color depth & refresh rate for new mode. Maybe not the best choice
// in all cases, but I don't know how to probe for alternatives....
Status = refit_call5_wrapper(UgaDraw->GetMode, UgaDraw, &UGAWidth, &UGAHeight, &UGADepth, &UGARefreshRate);
- Status = refit_call5_wrapper(UgaDraw->SetMode, UgaDraw, ScreenWidth, ScreenHeight, UGADepth, UGARefreshRate);
+ Status = refit_call5_wrapper(UgaDraw->SetMode, UgaDraw, *ScreenWidth, *ScreenHeight, UGADepth, UGARefreshRate);
if (Status == EFI_SUCCESS) {
- egScreenWidth = ScreenWidth;
- egScreenHeight = ScreenHeight;
+ egScreenWidth = *ScreenWidth;
+ egScreenHeight = *ScreenHeight;
ModeSet = TRUE;
} else {
// TODO: Find a list of supported modes and display it.
// NOTE: Below doesn't actually appear unless we explicitly switch to text mode.
// This is just a placeholder until something better can be done....
- Print(L"Error setting mode %d x %d; unsupported mode!\n");
+ Print(L"Error setting graphics mode %d x %d; unsupported mode!\n");
} // if/else
- } // if/else if
+ } // if/else if UGA mode (EFI 1.x)
return (ModeSet);
} // BOOLEAN egSetScreenSize()
-VOID egGetScreenSize(OUT UINTN *ScreenWidth, OUT UINTN *ScreenHeight)
-{
- if (ScreenWidth != NULL)
- *ScreenWidth = egScreenWidth;
- if (ScreenHeight != NULL)
- *ScreenHeight = egScreenHeight;
-}
+// Set a text mode.
+// Returns TRUE if the mode actually changed, FALSE otherwise.
+// Note that a FALSE return value can mean either an error or no change
+// necessary.
+BOOLEAN egSetTextMode(UINT32 RequestedMode) {
+ UINTN i = 0, Width, Height;
+ EFI_STATUS Status;
+ BOOLEAN ChangedIt = FALSE;
+
+ if ((RequestedMode != DONT_CHANGE_TEXT_MODE) && (RequestedMode != ST->ConOut->Mode->Mode)) {
+// SwitchToGraphics();
+ Status = refit_call2_wrapper(ST->ConOut->SetMode, ST->ConOut, RequestedMode);
+ if (Status == EFI_SUCCESS) {
+ ChangedIt = TRUE;
+ } else {
+ SwitchToText(FALSE);
+ Print(L"\nError setting text mode %d; available modes are:\n", RequestedMode);
+ do {
+ Status = refit_call4_wrapper(ST->ConOut->QueryMode, ST->ConOut, i, &Width, &Height);
+ if (Status == EFI_SUCCESS)
+ Print(L"Mode %d: %d x %d\n", i, Width, Height);
+ } while (++i < ST->ConOut->Mode->MaxMode);
+ Print(L"Mode %d: Use default mode\n", DONT_CHANGE_TEXT_MODE);
+
+ PauseForKey();
+ SwitchToGraphics();
+ } // if/else successful change
+ } // if need to change mode
+ return ChangedIt;
+} // BOOLEAN egSetTextMode()
CHAR16 * egScreenDescription(VOID)
{
- CHAR16 *Temp;
+ CHAR16 *GraphicsInfo, *TextInfo = NULL;
+
+ GraphicsInfo = AllocateZeroPool(256 * sizeof(CHAR16));
+ if (GraphicsInfo == NULL)
+ return L"memory allocation error";
if (egHasGraphics) {
if (GraphicsOutput != NULL) {
- Temp = AllocateZeroPool(256 * sizeof(CHAR16));
- SPrint(Temp, 255, L"Graphics Output (UEFI), %dx%d", egScreenWidth, egScreenHeight);
- return Temp;
+ SPrint(GraphicsInfo, 255, L"Graphics Output (UEFI), %dx%d", egScreenWidth, egScreenHeight);
} else if (UgaDraw != NULL) {
- Temp = AllocateZeroPool(256 * sizeof(CHAR16));
- SPrint(Temp, 255, L"UGA Draw (EFI 1.10), %dx%d", egScreenWidth, egScreenHeight);
- return Temp;
+ GraphicsInfo = AllocateZeroPool(256 * sizeof(CHAR16));
+ SPrint(GraphicsInfo, 255, L"UGA Draw (EFI 1.10), %dx%d", egScreenWidth, egScreenHeight);
} else {
+ MyFreePool(GraphicsInfo);
+ MyFreePool(TextInfo);
return L"Internal Error";
}
+ if (!AllowGraphicsMode) { // graphics-capable HW, but in text mode
+ TextInfo = AllocateZeroPool(256 * sizeof(CHAR16));
+ SPrint(TextInfo, 255, L"(in %dx%d text mode)", ConWidth, ConHeight);
+ MergeStrings(&GraphicsInfo, TextInfo, L' ');
+ }
} else {
- return L"Text Console";
+ SPrint(GraphicsInfo, 255, L"Text-foo console, %dx%d", ConWidth, ConHeight);
}
+ MyFreePool(TextInfo);
+ return GraphicsInfo;
}
BOOLEAN egHasGraphicsMode(VOID)
if (!egHasGraphics)
return;
- FillColor.Red = Color->r;
- FillColor.Green = Color->g;
- FillColor.Blue = Color->b;
+ if (Color != NULL) {
+ FillColor.Red = Color->r;
+ FillColor.Green = Color->g;
+ FillColor.Blue = Color->b;
+ } else {
+ FillColor.Red = 0x0;
+ FillColor.Green = 0x0;
+ FillColor.Blue = 0x0;
+ }
FillColor.Reserved = 0;
if (GraphicsOutput != NULL) {
// layout, and the header from TianoCore actually defines them
// to be the same type.
refit_call10_wrapper(GraphicsOutput->Blt, GraphicsOutput, (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *)&FillColor, EfiBltVideoFill,
- 0, 0, 0, 0, egScreenWidth, egScreenHeight, 0);
+ 0, 0, 0, 0, egScreenWidth, egScreenHeight, 0);
} else if (UgaDraw != NULL) {
- refit_call10_wrapper(UgaDraw->Blt, UgaDraw, &FillColor, EfiUgaVideoFill,
- 0, 0, 0, 0, egScreenWidth, egScreenHeight, 0);
+ refit_call10_wrapper(UgaDraw->Blt, UgaDraw, &FillColor, EfiUgaVideoFill, 0, 0, 0, 0, egScreenWidth, egScreenHeight, 0);
}
}