* (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 "global.h"
#include "screen.h"
EG_PIXEL StdBackgroundPixel = { 0xbf, 0xbf, 0xbf, 0 };
EG_PIXEL MenuBackgroundPixel = { 0xbf, 0xbf, 0xbf, 0 };
+EG_PIXEL DarkBackgroundPixel = { 0x0, 0x0, 0x0, 0 };
static BOOLEAN GraphicsScreenDirty;
AllowGraphicsMode = TRUE;
} else {
AllowGraphicsMode = FALSE;
+ egSetTextMode(GlobalConfig.RequestedTextMode);
egSetGraphicsModeEnabled(FALSE); // just to be sure we are in text mode
}
GraphicsScreenDirty = TRUE;
PrepareBlankLine();
- // show the banner (even when in graphics mode)
- DrawScreenHeader(L"Initializing...");
+ // show the banner if in text mode
+ if (GlobalConfig.TextOnly)
+ DrawScreenHeader(L"Initializing...");
}
+// Set the screen resolution and mode (text vs. graphics).
VOID SetupScreen(VOID)
{
- GlobalConfig.RequestedTextMode = egSetTextMode(GlobalConfig.RequestedTextMode);
+ UINTN NewWidth, NewHeight;
+
+ // Convert mode number to horizontal & vertical resolution values
+ if ((GlobalConfig.RequestedScreenWidth > 0) && (GlobalConfig.RequestedScreenHeight == 0))
+ egGetResFromMode(&(GlobalConfig.RequestedScreenWidth), &(GlobalConfig.RequestedScreenHeight));
+
+ // Set the believed-to-be current resolution to the LOWER of the current
+ // believed-to-be resolution and the requested resolution. This is done to
+ // enable setting a lower-than-default resolution.
+ if ((GlobalConfig.RequestedScreenWidth > 0) && (GlobalConfig.RequestedScreenHeight > 0)) {
+ UGAWidth = (UGAWidth < GlobalConfig.RequestedScreenWidth) ? UGAWidth : GlobalConfig.RequestedScreenWidth;
+ UGAHeight = (UGAHeight < GlobalConfig.RequestedScreenHeight) ? UGAHeight : GlobalConfig.RequestedScreenHeight;
+ }
+
+ // Set text mode. If this requires increasing the size of the graphics mode, do so.
+ if (egSetTextMode(GlobalConfig.RequestedTextMode)) {
+ egGetScreenSize(&NewWidth, &NewHeight);
+ if ((NewWidth > UGAWidth) || (NewHeight > UGAHeight)) {
+ UGAWidth = NewWidth;
+ UGAHeight = NewHeight;
+ }
+ if ((UGAWidth > GlobalConfig.RequestedScreenWidth) || (UGAHeight > GlobalConfig.RequestedScreenHeight)) {
+ // Requested text mode forces us to use a bigger graphics mode
+ GlobalConfig.RequestedScreenWidth = UGAWidth;
+ GlobalConfig.RequestedScreenHeight = UGAHeight;
+ } // if
+ }
- if ((GlobalConfig.RequestedScreenWidth > 0) && (GlobalConfig.RequestedScreenHeight > 0) &&
- egSetScreenSize(GlobalConfig.RequestedScreenWidth, GlobalConfig.RequestedScreenHeight)) {
- UGAWidth = GlobalConfig.RequestedScreenWidth;
- UGAHeight = GlobalConfig.RequestedScreenHeight;
+ if (GlobalConfig.RequestedScreenWidth > 0) {
+ egSetScreenSize(&(GlobalConfig.RequestedScreenWidth), &(GlobalConfig.RequestedScreenHeight));
+ egGetScreenSize(&UGAWidth, &UGAHeight);
} // if user requested a particular screen resolution
if (GlobalConfig.TextOnly) {
SwitchToGraphics();
BltClearScreen(TRUE);
}
-}
+} // VOID SetupScreen()
VOID SwitchToText(IN BOOLEAN CursorEnabled)
{
VOID BeginExternalScreen(IN BOOLEAN UseGraphicsMode, IN CHAR16 *Title)
{
- EG_PIXEL DarkBackgroundPixel = { 0x0, 0x0, 0x0, 0 };
-
if (!AllowGraphicsMode)
UseGraphicsMode = FALSE;
SwitchToGraphics();
BltClearScreen(FALSE);
} else {
- egClearScreen(&DarkBackgroundPixel);
- DrawScreenHeader(Title);
- } // if/else
-
- // show the header
-// DrawScreenHeader(Title);
-
- if (!UseGraphicsMode)
+ egClearScreen(&DarkBackgroundPixel);
+ DrawScreenHeader(Title);
SwitchToText(TRUE);
+ }
// reset error flag
haveError = FALSE;
PauseForKey();
}
+ // Reset the screen resolution, in case external program changed it....
+ SetupScreen();
+
// reset error flag
haveError = FALSE;
}
UINTN y;
// clear to black background
+ egClearScreen(&DarkBackgroundPixel); // first clear in graphics mode
refit_call2_wrapper(ST->ConOut->SetAttribute, ST->ConOut, ATTR_BASIC);
- refit_call1_wrapper(ST->ConOut->ClearScreen, ST->ConOut);
+ refit_call1_wrapper(ST->ConOut->ClearScreen, ST->ConOut); // then clear in text mode
// paint header background
refit_call2_wrapper(ST->ConOut->SetAttribute, ST->ConOut, ATTR_BANNER);