*/
#include "libegint.h"
+#include "../refind/screen.h"
#include "refit_call_wrapper.h"
#include <efiUgaDraw.h>
VOID egInitScreen(VOID)
{
- EFI_STATUS Status;
+ EFI_STATUS Status = EFI_SUCCESS;
UINT32 UGAWidth, UGAHeight, UGADepth, UGARefreshRate;
// get protocols
}
}
+// 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.
+// 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;
+
+ 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);
+ ModeSet = (Status == EFI_SUCCESS);
+ } // if
+ ModeNum++;
+ } // while()
+
+ if (ModeSet) {
+ egScreenWidth = ScreenWidth;
+ egScreenHeight = ScreenHeight;
+ } else {// If unsuccessful, display an error message for the user....
+ Print(L"Error setting mode %d x %d; using default mode!\nAvailable modes are:\n", ScreenWidth, ScreenHeight);
+ ModeNum = 0;
+ Status = EFI_SUCCESS;
+ while (Status == EFI_SUCCESS) {
+ Status = refit_call4_wrapper(GraphicsOutput->QueryMode, GraphicsOutput, ModeNum, &Size, &Info);
+ if ((Status == EFI_SUCCESS) && (Size >= sizeof(*Info))) {
+ Print(L"Mode %d: %d x %d\n", ModeNum, Info->HorizontalResolution, Info->VerticalResolution);
+ } // else
+ ModeNum++;
+ } // while()
+ PauseForKey();
+ } // if()
+ } 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);
+ if (Status == EFI_SUCCESS) {
+ 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");
+ } // if/else
+ } // if/else if
+ return (ModeSet);
+} // BOOLEAN egSetScreenSize()
+
VOID egGetScreenSize(OUT UINTN *ScreenWidth, OUT UINTN *ScreenHeight)
{
if (ScreenWidth != NULL)
BOOLEAN egIsGraphicsModeEnabled(VOID)
{
EFI_CONSOLE_CONTROL_SCREEN_MODE CurrentMode;
-
+
if (ConsoleControl != NULL) {
refit_call4_wrapper(ConsoleControl->GetMode, ConsoleControl, &CurrentMode, NULL, NULL);
return (CurrentMode == EfiConsoleControlScreenGraphics) ? TRUE : FALSE;
}
-
+
return FALSE;
}
VOID egClearScreen(IN EG_PIXEL *Color)
{
EFI_UGA_PIXEL FillColor;
-
+
if (!egHasGraphics)
return;
-
+
FillColor.Red = Color->r;
FillColor.Green = Color->g;
FillColor.Blue = Color->b;
FillColor.Reserved = 0;
-
+
if (GraphicsOutput != NULL) {
// EFI_GRAPHICS_OUTPUT_BLT_PIXEL and EFI_UGA_PIXEL have the same
// layout, and the header from TianoCore actually defines them
{
if (!egHasGraphics)
return;
-
+
if (Image->HasAlpha) {
Image->HasAlpha = FALSE;
egSetPlane(PLPTR(Image, a), 0, Image->Width * Image->Height);