diff options
Diffstat (limited to 'EdkModulePkg/Universal/UserInterface/HiiDataBase/Dxe/Fonts.c')
| -rw-r--r-- | EdkModulePkg/Universal/UserInterface/HiiDataBase/Dxe/Fonts.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/EdkModulePkg/Universal/UserInterface/HiiDataBase/Dxe/Fonts.c b/EdkModulePkg/Universal/UserInterface/HiiDataBase/Dxe/Fonts.c new file mode 100644 index 0000000..52dc12e --- /dev/null +++ b/EdkModulePkg/Universal/UserInterface/HiiDataBase/Dxe/Fonts.c @@ -0,0 +1,263 @@ +/*++
+
+Copyright (c) 2006, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+
+ Fonts.c
+
+Abstract:
+
+ This file contains the Glyph/Font processing code to the HII database.
+
+--*/
+
+
+#include "HiiDatabase.h"
+
+//
+// We only need to define a wide glyph, since we will seed the narrow glyph with EFI_NARROW_GLYPH size of
+// this data structure
+//
+UINT8 mUnknownGlyph[38] = {
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xAA,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xaa,
+ 0x55,
+ 0xAA
+};
+
+EFI_STATUS
+EFIAPI
+HiiGetGlyph (
+ IN EFI_HII_PROTOCOL *This,
+ IN CHAR16 *Source,
+ IN OUT UINT16 *Index,
+ OUT UINT8 **GlyphBuffer,
+ OUT UINT16 *BitWidth,
+ IN OUT UINT32 *InternalStatus
+ )
+/*++
+
+Routine Description:
+ Translates a Unicode character into the corresponding font glyph.
+ If the Source was pointing to a non-spacing character, the next Source[*Index]
+ character will be parsed and OR'd to the GlyphBuffer until a spacing character
+ is found in the Source. Since non-spacing characters are considered to be the
+ same pixel width as a regular character their BitWidth will be reflected correctly
+ however due to their special attribute, they are considered to be zero advancing width.
+ This basically means that the cursor would not advance, thus the character that follows
+ it would overlay the non-spacing character. The Index is modified to reflect both the
+ incoming array entry into the Source string but also the outgoing array entry after having
+ parsed the equivalent of a single Glyph's worth of data.
+
+Arguments:
+
+Returns:
+
+--*/
+{
+ EFI_HII_GLOBAL_DATA *GlobalData;
+ EFI_HII_DATA *HiiData;
+ UINTN Count;
+ BOOLEAN Narrow;
+ UINTN Location;
+ UINTN SearchLocation;
+ UINTN Value;
+ CHAR16 Character;
+ UINTN Attributes;
+
+ if (This == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ HiiData = EFI_HII_DATA_FROM_THIS (This);
+
+ GlobalData = HiiData->GlobalData;
+ Count = sizeof (GlobalData->NarrowGlyphs->GlyphCol1);
+
+ Location = *Index;
+ SearchLocation = *Index;
+ Narrow = TRUE;
+
+ if (Source[Location] == NARROW_CHAR || Source[Location] == WIDE_CHAR) {
+ *InternalStatus = 0;
+ }
+ //
+ // We don't know what glyph database to look in - let's figure it out
+ //
+ if (*InternalStatus == 0) {
+ //
+ // Determine if we are looking for narrow or wide glyph data
+ //
+ do {
+ if (Source[SearchLocation] == NARROW_CHAR || Source[SearchLocation] == WIDE_CHAR) {
+ //
+ // We found something that identifies what glyph database to look in
+ //
+ if (Source[SearchLocation] == WIDE_CHAR) {
+ Narrow = FALSE;
+ *BitWidth = WIDE_WIDTH;
+ *InternalStatus = WIDE_CHAR;
+ Location++;
+ break;
+ } else {
+ Narrow = TRUE;
+ *BitWidth = NARROW_WIDTH;
+ *InternalStatus = NARROW_CHAR;
+ Location++;
+ break;
+ }
+ }
+ } while (SearchLocation-- > 0);
+ }
+
+ if (*InternalStatus == NARROW_CHAR) {
+ Narrow = TRUE;
+ *BitWidth = NARROW_WIDTH;
+ } else if (*InternalStatus == WIDE_CHAR) {
+ Narrow = FALSE;
+ *BitWidth = WIDE_WIDTH;
+ } else {
+ //
+ // Without otherwise knowing what the width is narrow (e.g. someone passed in a string with index of 0
+ // we wouldn't be able to determine the width of the data.)
+ // BUGBUG - do we go to wide database and if exist, ignore narrow? Check Unicode spec....
+ //
+ Narrow = TRUE;
+ *BitWidth = NARROW_WIDTH;
+ }
+
+ Character = Source[Location];
+
+ if (Narrow) {
+ if (GlobalData->NarrowGlyphs[Character].UnicodeWeight != 0x0000) {
+ *GlyphBuffer = (UINT8 *) (&GlobalData->NarrowGlyphs[Character]);
+ Attributes = GlobalData->NarrowGlyphs[Character].Attributes & EFI_GLYPH_NON_SPACING;
+ } else {
+ //
+ // Glyph is uninitialized - return an error, but hand back the glyph
+ //
+ *GlyphBuffer = (UINT8 *) (&GlobalData->NarrowGlyphs[Character]);
+ *Index = (UINT16) (Location + 1);
+ return EFI_NOT_FOUND;
+ }
+ } else {
+ //
+ // Wide character
+ //
+ if (GlobalData->WideGlyphs[Character].UnicodeWeight != 0x0000) {
+ *GlyphBuffer = (UINT8 *) (&GlobalData->WideGlyphs[Character]);
+ Attributes = GlobalData->WideGlyphs[Character].Attributes & EFI_GLYPH_NON_SPACING;
+ } else {
+ //
+ // Glyph is uninitialized - return an error, but hand back the glyph
+ //
+ *GlyphBuffer = (UINT8 *) (&GlobalData->WideGlyphs[Character]);
+ *Index = (UINT16) (Location + 1);
+ return EFI_NOT_FOUND;
+ }
+ }
+ //
+ // This is a non-spacing character. It will be followed by either more non-spacing
+ // characters or a regular character. We need to OR together the data associated with each.
+ //
+ for (; Attributes != 0; Location++) {
+ //
+ // Character is the Unicode value which is the index into the Glyph array.
+ //
+ Character = Source[Location];
+
+ if (Narrow) {
+ for (Value = 0; Value != Count; Value++) {
+ *GlyphBuffer[Location + Value] |= GlobalData->NarrowGlyphs[Character].GlyphCol1[Value];
+ }
+
+ Attributes = GlobalData->NarrowGlyphs[Character].Attributes & EFI_GLYPH_NON_SPACING;
+ } else {
+ for (Value = 0; Value != Count; Value++) {
+ *GlyphBuffer[Location + Value] |= GlobalData->WideGlyphs[Character].GlyphCol1[Value];
+ *GlyphBuffer[Location + Value + Count] |= GlobalData->WideGlyphs[Character].GlyphCol2[Value];
+ }
+
+ Attributes = GlobalData->WideGlyphs[Character].Attributes & EFI_GLYPH_NON_SPACING;
+ }
+ }
+ //
+ // Source[*Index] should point to the next character to process
+ //
+ *Index = (UINT16) (Location + 1);
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+HiiGlyphToBlt (
+ IN EFI_HII_PROTOCOL *This,
+ IN UINT8 *GlyphBuffer,
+ IN EFI_UGA_PIXEL Foreground,
+ IN EFI_UGA_PIXEL Background,
+ IN UINTN Count,
+ IN UINTN Width,
+ IN UINTN Height,
+ IN OUT EFI_UGA_PIXEL *BltBuffer
+ )
+{
+ UINTN X;
+ UINTN Y;
+
+ //
+ // Convert Monochrome bitmap of the Glyph to BltBuffer structure
+ //
+ for (Y = 0; Y < Height; Y++) {
+ for (X = 0; X < Width; X++) {
+ if ((((EFI_NARROW_GLYPH *) GlyphBuffer)->GlyphCol1[Y] & (1 << X)) != 0) {
+ BltBuffer[Y * Width * Count + (Width - X - 1)] = Foreground;
+ } else {
+ BltBuffer[Y * Width * Count + (Width - X - 1)] = Background;
+ }
+ }
+ }
+
+ return EFI_SUCCESS;
+}
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