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system76-edk2/MdeModulePkg/Universal/HiiDatabaseDxe/Font.c
ydong10 f01b91ae42 Fixed build failed. 
Signed-off-by: Eric Dong <eric.dong@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13406 6f19259b-4bc3-4df7-8a09-765794883524
2012-05-31 08:35:48 +00:00

2878 lines
100 KiB
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/** @file
Implementation for EFI_HII_FONT_PROTOCOL.
Copyright (c) 2007 - 2012, Intel Corporation. All rights reserved.<BR>
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.
**/
#include "HiiDatabase.h"
EFI_GRAPHICS_OUTPUT_BLT_PIXEL mHiiEfiColors[16] = {
//
// B G R
//
{0x00, 0x00, 0x00, 0x00}, // BLACK
{0x98, 0x00, 0x00, 0x00}, // BLUE
{0x00, 0x98, 0x00, 0x00}, // GREEN
{0x98, 0x98, 0x00, 0x00}, // CYAN
{0x00, 0x00, 0x98, 0x00}, // RED
{0x98, 0x00, 0x98, 0x00}, // MAGENTA
{0x00, 0x98, 0x98, 0x00}, // BROWN
{0x98, 0x98, 0x98, 0x00}, // LIGHTGRAY
{0x30, 0x30, 0x30, 0x00}, // DARKGRAY - BRIGHT BLACK
{0xff, 0x00, 0x00, 0x00}, // LIGHTBLUE
{0x00, 0xff, 0x00, 0x00}, // LIGHTGREEN
{0xff, 0xff, 0x00, 0x00}, // LIGHTCYAN
{0x00, 0x00, 0xff, 0x00}, // LIGHTRED
{0xff, 0x00, 0xff, 0x00}, // LIGHTMAGENTA
{0x00, 0xff, 0xff, 0x00}, // YELLOW
{0xff, 0xff, 0xff, 0x00}, // WHITE
};
/**
Insert a character cell information to the list specified by GlyphInfoList.
This is a internal function.
@param CharValue Unicode character value, which identifies a glyph
block.
@param GlyphInfoList HII_GLYPH_INFO list head.
@param Cell Incoming character cell information.
@retval EFI_SUCCESS Cell information is added to the GlyphInfoList.
@retval EFI_OUT_OF_RESOURCES The system is out of resources to accomplish the
task.
**/
EFI_STATUS
NewCell (
IN CHAR16 CharValue,
IN LIST_ENTRY *GlyphInfoList,
IN EFI_HII_GLYPH_INFO *Cell
)
{
HII_GLYPH_INFO *GlyphInfo;
ASSERT (Cell != NULL && GlyphInfoList != NULL);
GlyphInfo = (HII_GLYPH_INFO *) AllocateZeroPool (sizeof (HII_GLYPH_INFO));
if (GlyphInfo == NULL) {
return EFI_OUT_OF_RESOURCES;
}
//
// GlyphInfoList stores a list of default character cell information, each is
// identified by "CharId".
//
GlyphInfo->Signature = HII_GLYPH_INFO_SIGNATURE;
GlyphInfo->CharId = CharValue;
if (Cell->AdvanceX == 0) {
Cell->AdvanceX = Cell->Width;
}
CopyMem (&GlyphInfo->Cell, Cell, sizeof (EFI_HII_GLYPH_INFO));
InsertTailList (GlyphInfoList, &GlyphInfo->Entry);
return EFI_SUCCESS;
}
/**
Get a character cell information from the list specified by GlyphInfoList.
This is a internal function.
@param CharValue Unicode character value, which identifies a glyph
block.
@param GlyphInfoList HII_GLYPH_INFO list head.
@param Cell Buffer which stores output character cell
information.
@retval EFI_SUCCESS Cell information is added to the GlyphInfoList.
@retval EFI_NOT_FOUND The character info specified by CharValue does
not exist.
**/
EFI_STATUS
GetCell (
IN CHAR16 CharValue,
IN LIST_ENTRY *GlyphInfoList,
OUT EFI_HII_GLYPH_INFO *Cell
)
{
HII_GLYPH_INFO *GlyphInfo;
LIST_ENTRY *Link;
ASSERT (Cell != NULL && GlyphInfoList != NULL);
//
// Since the EFI_HII_GIBT_DEFAULTS block won't increment CharValueCurrent,
// the value of "CharId" of a default character cell which is used for a
// EFI_HII_GIBT_GLYPH_DEFAULT or EFI_HII_GIBT_GLYPHS_DEFAULT should be
// less or equal to the value of "CharValueCurrent" of this default block.
//
// For instance, if the CharId of a GlyphInfoList is {1, 3, 7}, a default glyph
// with CharValue equals "7" uses the GlyphInfo with CharId = 7;
// a default glyph with CharValue equals "6" uses the GlyphInfo with CharId = 3.
//
for (Link = GlyphInfoList->BackLink; Link != GlyphInfoList; Link = Link->BackLink) {
GlyphInfo = CR (Link, HII_GLYPH_INFO, Entry, HII_GLYPH_INFO_SIGNATURE);
if (GlyphInfo->CharId <= CharValue) {
CopyMem (Cell, &GlyphInfo->Cell, sizeof (EFI_HII_GLYPH_INFO));
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
/**
Convert the glyph for a single character into a bitmap.
This is a internal function.
@param Private HII database driver private data.
@param Char Character to retrieve.
@param StringInfo Points to the string font and color information
or NULL if the string should use the default
system font and color.
@param GlyphBuffer Buffer to store the retrieved bitmap data.
@param Cell Points to EFI_HII_GLYPH_INFO structure.
@param Attributes If not NULL, output the glyph attributes if any.
@retval EFI_SUCCESS Glyph bitmap outputted.
@retval EFI_OUT_OF_RESOURCES Unable to allocate the output buffer GlyphBuffer.
@retval EFI_NOT_FOUND The glyph was unknown can not be found.
@retval EFI_INVALID_PARAMETER Any input parameter is invalid.
**/
EFI_STATUS
GetGlyphBuffer (
IN HII_DATABASE_PRIVATE_DATA *Private,
IN CHAR16 Char,
IN EFI_FONT_INFO *StringInfo,
OUT UINT8 **GlyphBuffer,
OUT EFI_HII_GLYPH_INFO *Cell,
OUT UINT8 *Attributes OPTIONAL
)
{
HII_DATABASE_RECORD *Node;
LIST_ENTRY *Link;
HII_SIMPLE_FONT_PACKAGE_INSTANCE *SimpleFont;
LIST_ENTRY *Link1;
UINT16 Index;
EFI_NARROW_GLYPH Narrow;
EFI_WIDE_GLYPH Wide;
HII_GLOBAL_FONT_INFO *GlobalFont;
UINTN HeaderSize;
EFI_NARROW_GLYPH *NarrowPtr;
EFI_WIDE_GLYPH *WidePtr;
if (GlyphBuffer == NULL || Cell == NULL) {
return EFI_INVALID_PARAMETER;
}
if (Private == NULL || Private->Signature != HII_DATABASE_PRIVATE_DATA_SIGNATURE) {
return EFI_INVALID_PARAMETER;
}
ZeroMem (Cell, sizeof (EFI_HII_GLYPH_INFO));
//
// If StringInfo is not NULL, it must point to an existing EFI_FONT_INFO rather
// than system default font and color.
// If NULL, try to find the character in simplified font packages since
// default system font is the fixed font (narrow or wide glyph).
//
if (StringInfo != NULL) {
if(!IsFontInfoExisted (Private, StringInfo, NULL, NULL, &GlobalFont)) {
return EFI_INVALID_PARAMETER;
}
if (Attributes != NULL) {
*Attributes = PROPORTIONAL_GLYPH;
}
return FindGlyphBlock (GlobalFont->FontPackage, Char, GlyphBuffer, Cell, NULL);
} else {
HeaderSize = sizeof (EFI_HII_SIMPLE_FONT_PACKAGE_HDR);
for (Link = Private->DatabaseList.ForwardLink; Link != &Private->DatabaseList; Link = Link->ForwardLink) {
Node = CR (Link, HII_DATABASE_RECORD, DatabaseEntry, HII_DATABASE_RECORD_SIGNATURE);
for (Link1 = Node->PackageList->SimpleFontPkgHdr.ForwardLink;
Link1 != &Node->PackageList->SimpleFontPkgHdr;
Link1 = Link1->ForwardLink
) {
SimpleFont = CR (Link1, HII_SIMPLE_FONT_PACKAGE_INSTANCE, SimpleFontEntry, HII_S_FONT_PACKAGE_SIGNATURE);
//
// Search the narrow glyph array
//
NarrowPtr = (EFI_NARROW_GLYPH *) ((UINT8 *) (SimpleFont->SimpleFontPkgHdr) + HeaderSize);
for (Index = 0; Index < SimpleFont->SimpleFontPkgHdr->NumberOfNarrowGlyphs; Index++) {
CopyMem (&Narrow, NarrowPtr + Index,sizeof (EFI_NARROW_GLYPH));
if (Narrow.UnicodeWeight == Char) {
*GlyphBuffer = (UINT8 *) AllocateZeroPool (EFI_GLYPH_HEIGHT);
if (*GlyphBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Cell->Width = EFI_GLYPH_WIDTH;
Cell->Height = EFI_GLYPH_HEIGHT;
Cell->AdvanceX = Cell->Width;
CopyMem (*GlyphBuffer, Narrow.GlyphCol1, Cell->Height);
if (Attributes != NULL) {
*Attributes = (UINT8) (Narrow.Attributes | NARROW_GLYPH);
}
return EFI_SUCCESS;
}
}
//
// Search the wide glyph array
//
WidePtr = (EFI_WIDE_GLYPH *) (NarrowPtr + SimpleFont->SimpleFontPkgHdr->NumberOfNarrowGlyphs);
for (Index = 0; Index < SimpleFont->SimpleFontPkgHdr->NumberOfWideGlyphs; Index++) {
CopyMem (&Wide, WidePtr + Index, sizeof (EFI_WIDE_GLYPH));
if (Wide.UnicodeWeight == Char) {
*GlyphBuffer = (UINT8 *) AllocateZeroPool (EFI_GLYPH_HEIGHT * 2);
if (*GlyphBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Cell->Width = EFI_GLYPH_WIDTH * 2;
Cell->Height = EFI_GLYPH_HEIGHT;
Cell->AdvanceX = Cell->Width;
CopyMem (*GlyphBuffer, Wide.GlyphCol1, EFI_GLYPH_HEIGHT);
CopyMem (*GlyphBuffer + EFI_GLYPH_HEIGHT, Wide.GlyphCol2, EFI_GLYPH_HEIGHT);
if (Attributes != NULL) {
*Attributes = (UINT8) (Wide.Attributes | EFI_GLYPH_WIDE);
}
return EFI_SUCCESS;
}
}
}
}
}
return EFI_NOT_FOUND;
}
/**
Convert bitmap data of the glyph to blt structure.
This is a internal function.
@param GlyphBuffer Buffer points to bitmap data of glyph.
@param Foreground The color of the "on" pixels in the glyph in the
bitmap.
@param Background The color of the "off" pixels in the glyph in the
bitmap.
@param ImageWidth Width of the whole image in pixels.
@param RowWidth The width of the text on the line, in pixels.
@param RowHeight The height of the line, in pixels.
@param Transparent If TRUE, the Background color is ignored and all
"off" pixels in the character's drawn wil use the
pixel value from BltBuffer.
@param Origin On input, points to the origin of the to be
displayed character, on output, points to the
next glyph's origin.
**/
VOID
NarrowGlyphToBlt (
IN UINT8 *GlyphBuffer,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,
IN UINT16 ImageWidth,
IN UINTN RowWidth,
IN UINTN RowHeight,
IN BOOLEAN Transparent,
IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL **Origin
)
{
UINT8 Xpos;
UINT8 Ypos;
UINT8 Height;
UINT8 Width;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Buffer;
ASSERT (GlyphBuffer != NULL && Origin != NULL && *Origin != NULL);
Height = EFI_GLYPH_HEIGHT;
Width = EFI_GLYPH_WIDTH;
//
// Move position to the left-top corner of char.
//
Buffer = *Origin - EFI_GLYPH_HEIGHT * ImageWidth;
//
// Char may be partially displayed when CLIP_X or CLIP_Y is not set.
//
if (RowHeight < Height) {
Height = (UINT8) RowHeight;
}
if (RowWidth < Width) {
Width = (UINT8) RowWidth;
}
for (Ypos = 0; Ypos < Height; Ypos++) {
for (Xpos = 0; Xpos < Width; Xpos++) {
if ((GlyphBuffer[Ypos] & (1 << (EFI_GLYPH_WIDTH - Xpos - 1))) != 0) {
Buffer[Ypos * ImageWidth + Xpos] = Foreground;
} else {
if (!Transparent) {
Buffer[Ypos * ImageWidth + Xpos] = Background;
}
}
}
}
*Origin = *Origin + EFI_GLYPH_WIDTH;
}
/**
Convert bitmap data of the glyph to blt structure.
This is a internal function.
@param GlyphBuffer Buffer points to bitmap data of glyph.
@param Foreground The color of the "on" pixels in the glyph in the
bitmap.
@param Background The color of the "off" pixels in the glyph in the
bitmap.
@param ImageWidth Width of the whole image in pixels.
@param BaseLine BaseLine in the line.
@param RowWidth The width of the text on the line, in pixels.
@param RowHeight The height of the line, in pixels.
@param Transparent If TRUE, the Background color is ignored and all
"off" pixels in the character's drawn wil use the
pixel value from BltBuffer.
@param Cell Points to EFI_HII_GLYPH_INFO structure.
@param Attributes The attribute of incoming glyph in GlyphBuffer.
@param Origin On input, points to the origin of the to be
displayed character, on output, points to the
next glyph's origin.
**/
VOID
GlyphToBlt (
IN UINT8 *GlyphBuffer,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,
IN UINT16 ImageWidth,
IN UINT16 BaseLine,
IN UINTN RowWidth,
IN UINTN RowHeight,
IN BOOLEAN Transparent,
IN CONST EFI_HII_GLYPH_INFO *Cell,
IN UINT8 Attributes,
IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL **Origin
)
{
UINT16 Xpos;
UINT16 Ypos;
UINT8 Data;
UINT16 Index;
UINT16 YposOffset;
UINTN OffsetY;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer;
ASSERT (Origin != NULL && *Origin != NULL && Cell != NULL);
//
// Only adjust origin position if char has no bitmap.
//
if (GlyphBuffer == NULL) {
*Origin = *Origin + Cell->AdvanceX;
return;
}
//
// Move position to the left-top corner of char.
//
BltBuffer = *Origin + Cell->OffsetX - (Cell->OffsetY + Cell->Height) * ImageWidth;
YposOffset = (UINT16) (BaseLine - (Cell->OffsetY + Cell->Height));
//
// Since non-spacing key will be printed OR'd with the previous glyph, don't
// write 0.
//
if ((Attributes & EFI_GLYPH_NON_SPACING) == EFI_GLYPH_NON_SPACING) {
Transparent = TRUE;
}
//
// The glyph's upper left hand corner pixel is the most significant bit of the
// first bitmap byte.
//
for (Ypos = 0; Ypos < Cell->Height && ((UINTN) (Ypos + YposOffset) < RowHeight); Ypos++) {
OffsetY = BITMAP_LEN_1_BIT (Cell->Width, Ypos);
//
// All bits in these bytes are meaningful.
//
for (Xpos = 0; Xpos < Cell->Width / 8; Xpos++) {
Data = *(GlyphBuffer + OffsetY + Xpos);
for (Index = 0; Index < 8 && ((UINTN) (Xpos * 8 + Index + Cell->OffsetX) < RowWidth); Index++) {
if ((Data & (1 << (8 - Index - 1))) != 0) {
BltBuffer[Ypos * ImageWidth + Xpos * 8 + Index] = Foreground;
} else {
if (!Transparent) {
BltBuffer[Ypos * ImageWidth + Xpos * 8 + Index] = Background;
}
}
}
}
if (Cell->Width % 8 != 0) {
//
// There are some padding bits in this byte. Ignore them.
//
Data = *(GlyphBuffer + OffsetY + Xpos);
for (Index = 0; Index < Cell->Width % 8 && ((UINTN) (Xpos * 8 + Index + Cell->OffsetX) < RowWidth); Index++) {
if ((Data & (1 << (8 - Index - 1))) != 0) {
BltBuffer[Ypos * ImageWidth + Xpos * 8 + Index] = Foreground;
} else {
if (!Transparent) {
BltBuffer[Ypos * ImageWidth + Xpos * 8 + Index] = Background;
}
}
}
} // end of if (Width % 8...)
} // end of for (Ypos=0...)
*Origin = *Origin + Cell->AdvanceX;
}
/**
Convert bitmap data of the glyph to blt structure.
This is a internal function.
@param GlyphBuffer Buffer points to bitmap data of glyph.
@param Foreground The color of the "on" pixels in the glyph in the
bitmap.
@param Background The color of the "off" pixels in the glyph in the
bitmap.
@param ImageWidth Width of the whole image in pixels.
@param BaseLine BaseLine in the line.
@param RowWidth The width of the text on the line, in pixels.
@param RowHeight The height of the line, in pixels.
@param Transparent If TRUE, the Background color is ignored and all
"off" pixels in the character's drawn wil use the
pixel value from BltBuffer.
@param Cell Points to EFI_HII_GLYPH_INFO structure.
@param Attributes The attribute of incoming glyph in GlyphBuffer.
@param Origin On input, points to the origin of the to be
displayed character, on output, points to the
next glyph's origin.
@return Points to the address of next origin node in BltBuffer.
**/
VOID
GlyphToImage (
IN UINT8 *GlyphBuffer,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,
IN UINT16 ImageWidth,
IN UINT16 BaseLine,
IN UINTN RowWidth,
IN UINTN RowHeight,
IN BOOLEAN Transparent,
IN CONST EFI_HII_GLYPH_INFO *Cell,
IN UINT8 Attributes,
IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL **Origin
)
{
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Buffer;
ASSERT (Origin != NULL && *Origin != NULL && Cell != NULL);
Buffer = *Origin;
if ((Attributes & EFI_GLYPH_NON_SPACING) == EFI_GLYPH_NON_SPACING) {
//
// This character is a non-spacing key, print it OR'd with the previous glyph.
// without advancing cursor.
//
Buffer -= Cell->AdvanceX;
GlyphToBlt (
GlyphBuffer,
Foreground,
Background,
ImageWidth,
BaseLine,
RowWidth,
RowHeight,
Transparent,
Cell,
Attributes,
&Buffer
);
} else if ((Attributes & EFI_GLYPH_WIDE) == EFI_GLYPH_WIDE) {
//
// This character is wide glyph, i.e. 16 pixels * 19 pixels.
// Draw it as two narrow glyphs.
//
NarrowGlyphToBlt (
GlyphBuffer,
Foreground,
Background,
ImageWidth,
RowWidth,
RowHeight,
Transparent,
Origin
);
NarrowGlyphToBlt (
GlyphBuffer + EFI_GLYPH_HEIGHT,
Foreground,
Background,
ImageWidth,
RowWidth,
RowHeight,
Transparent,
Origin
);
} else if ((Attributes & NARROW_GLYPH) == NARROW_GLYPH) {
//
// This character is narrow glyph, i.e. 8 pixels * 19 pixels.
//
NarrowGlyphToBlt (
GlyphBuffer,
Foreground,
Background,
ImageWidth,
RowWidth,
RowHeight,
Transparent,
Origin
);
} else if ((Attributes & PROPORTIONAL_GLYPH) == PROPORTIONAL_GLYPH) {
//
// This character is proportional glyph, i.e. Cell->Width * Cell->Height pixels.
//
GlyphToBlt (
GlyphBuffer,
Foreground,
Background,
ImageWidth,
BaseLine,
RowWidth,
RowHeight,
Transparent,
Cell,
Attributes,
Origin
);
}
}
/**
Write the output parameters of FindGlyphBlock().
This is a internal function.
@param BufferIn Buffer which stores the bitmap data of the found
block.
@param BufferLen Length of BufferIn.
@param InputCell Buffer which stores cell information of the
encoded bitmap.
@param GlyphBuffer Output the corresponding bitmap data of the found
block. It is the caller's responsiblity to free
this buffer.
@param Cell Output cell information of the encoded bitmap.
@param GlyphBufferLen If not NULL, output the length of GlyphBuffer.
@retval EFI_SUCCESS The operation is performed successfully.
@retval EFI_INVALID_PARAMETER Any input parameter is invalid.
@retval EFI_OUT_OF_RESOURCES The system is out of resources to accomplish the
task.
**/
EFI_STATUS
WriteOutputParam (
IN UINT8 *BufferIn,
IN UINTN BufferLen,
IN EFI_HII_GLYPH_INFO *InputCell,
OUT UINT8 **GlyphBuffer, OPTIONAL
OUT EFI_HII_GLYPH_INFO *Cell, OPTIONAL
OUT UINTN *GlyphBufferLen OPTIONAL
)
{
if (BufferIn == NULL || InputCell == NULL) {
return EFI_INVALID_PARAMETER;
}
if (Cell != NULL) {
CopyMem (Cell, InputCell, sizeof (EFI_HII_GLYPH_INFO));
}
if (GlyphBuffer != NULL && BufferLen > 0) {
*GlyphBuffer = (UINT8 *) AllocateZeroPool (BufferLen);
if (*GlyphBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
CopyMem (*GlyphBuffer, BufferIn, BufferLen);
}
if (GlyphBufferLen != NULL) {
*GlyphBufferLen = BufferLen;
}
return EFI_SUCCESS;
}
/**
Parse all glyph blocks to find a glyph block specified by CharValue.
If CharValue = (CHAR16) (-1), collect all default character cell information
within this font package and backup its information.
@param FontPackage Hii string package instance.
@param CharValue Unicode character value, which identifies a glyph
block.
@param GlyphBuffer Output the corresponding bitmap data of the found
block. It is the caller's responsiblity to free
this buffer.
@param Cell Output cell information of the encoded bitmap.
@param GlyphBufferLen If not NULL, output the length of GlyphBuffer.
@retval EFI_SUCCESS The bitmap data is retrieved successfully.
@retval EFI_NOT_FOUND The specified CharValue does not exist in current
database.
@retval EFI_OUT_OF_RESOURCES The system is out of resources to accomplish the
task.
**/
EFI_STATUS
FindGlyphBlock (
IN HII_FONT_PACKAGE_INSTANCE *FontPackage,
IN CHAR16 CharValue,
OUT UINT8 **GlyphBuffer, OPTIONAL
OUT EFI_HII_GLYPH_INFO *Cell, OPTIONAL
OUT UINTN *GlyphBufferLen OPTIONAL
)
{
EFI_STATUS Status;
UINT8 *BlockPtr;
UINT16 CharCurrent;
UINT16 Length16;
UINT32 Length32;
EFI_HII_GIBT_GLYPHS_BLOCK Glyphs;
UINTN BufferLen;
UINT16 Index;
EFI_HII_GLYPH_INFO DefaultCell;
EFI_HII_GLYPH_INFO LocalCell;
INT16 MinOffsetY;
UINT16 BaseLine;
ASSERT (FontPackage != NULL);
ASSERT (FontPackage->Signature == HII_FONT_PACKAGE_SIGNATURE);
BaseLine = 0;
MinOffsetY = 0;
if (CharValue == (CHAR16) (-1)) {
//
// Collect the cell information specified in font package fixed header.
// Use CharValue =0 to represent this particular cell.
//
Status = NewCell (
0,
&FontPackage->GlyphInfoList,
(EFI_HII_GLYPH_INFO *) ((UINT8 *) FontPackage->FontPkgHdr + 3 * sizeof (UINT32))
);
if (EFI_ERROR (Status)) {
return Status;
}
CopyMem (
&LocalCell,
(UINT8 *) FontPackage->FontPkgHdr + 3 * sizeof (UINT32),
sizeof (EFI_HII_GLYPH_INFO)
);
BaseLine = (UINT16) (LocalCell.Height + LocalCell.OffsetY);
if (MinOffsetY > LocalCell.OffsetY) {
MinOffsetY = LocalCell.OffsetY;
}
}
BlockPtr = FontPackage->GlyphBlock;
CharCurrent = 1;
BufferLen = 0;
while (*BlockPtr != EFI_HII_GIBT_END) {
switch (*BlockPtr) {
case EFI_HII_GIBT_DEFAULTS:
//
// Collect all default character cell information specified by
// EFI_HII_GIBT_DEFAULTS.
//
if (CharValue == (CHAR16) (-1)) {
Status = NewCell (
CharCurrent,
&FontPackage->GlyphInfoList,
(EFI_HII_GLYPH_INFO *) (BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK))
);
if (EFI_ERROR (Status)) {
return Status;
}
CopyMem (
&LocalCell,
BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK),
sizeof (EFI_HII_GLYPH_INFO)
);
if (BaseLine < LocalCell.Height + LocalCell.OffsetY) {
BaseLine = (UINT16) (LocalCell.Height + LocalCell.OffsetY);
}
if (MinOffsetY > LocalCell.OffsetY) {
MinOffsetY = LocalCell.OffsetY;
}
}
BlockPtr += sizeof (EFI_HII_GIBT_DEFAULTS_BLOCK);
break;
case EFI_HII_GIBT_DUPLICATE:
if (CharCurrent == CharValue) {
CopyMem (&CharValue, BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK), sizeof (CHAR16));
CharCurrent = 1;
BlockPtr = FontPackage->GlyphBlock;
continue;
}
CharCurrent++;
BlockPtr += sizeof (EFI_HII_GIBT_DUPLICATE_BLOCK);
break;
case EFI_HII_GIBT_EXT1:
BlockPtr += *(BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK) + sizeof (UINT8));
break;
case EFI_HII_GIBT_EXT2:
CopyMem (
&Length16,
BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK) + sizeof (UINT8),
sizeof (UINT16)
);
BlockPtr += Length16;
break;
case EFI_HII_GIBT_EXT4:
CopyMem (
&Length32,
BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK) + sizeof (UINT8),
sizeof (UINT32)
);
BlockPtr += Length32;
break;
case EFI_HII_GIBT_GLYPH:
CopyMem (
&LocalCell,
BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK),
sizeof (EFI_HII_GLYPH_INFO)
);
if (CharValue == (CHAR16) (-1)) {
if (BaseLine < LocalCell.Height + LocalCell.OffsetY) {
BaseLine = (UINT16) (LocalCell.Height + LocalCell.OffsetY);
}
if (MinOffsetY > LocalCell.OffsetY) {
MinOffsetY = LocalCell.OffsetY;
}
}
BufferLen = BITMAP_LEN_1_BIT (LocalCell.Width, LocalCell.Height);
if (CharCurrent == CharValue) {
return WriteOutputParam (
BlockPtr + sizeof (EFI_HII_GIBT_GLYPH_BLOCK) - sizeof (UINT8),
BufferLen,
&LocalCell,
GlyphBuffer,
Cell,
GlyphBufferLen
);
}
CharCurrent++;
BlockPtr += sizeof (EFI_HII_GIBT_GLYPH_BLOCK) - sizeof (UINT8) + BufferLen;
break;
case EFI_HII_GIBT_GLYPHS:
BlockPtr += sizeof (EFI_HII_GLYPH_BLOCK);
CopyMem (&Glyphs.Cell, BlockPtr, sizeof (EFI_HII_GLYPH_INFO));
BlockPtr += sizeof (EFI_HII_GLYPH_INFO);
CopyMem (&Glyphs.Count, BlockPtr, sizeof (UINT16));
BlockPtr += sizeof (UINT16);
if (CharValue == (CHAR16) (-1)) {
if (BaseLine < Glyphs.Cell.Height + Glyphs.Cell.OffsetY) {
BaseLine = (UINT16) (Glyphs.Cell.Height + Glyphs.Cell.OffsetY);
}
if (MinOffsetY > Glyphs.Cell.OffsetY) {
MinOffsetY = Glyphs.Cell.OffsetY;
}
}
BufferLen = BITMAP_LEN_1_BIT (Glyphs.Cell.Width, Glyphs.Cell.Height);
for (Index = 0; Index < Glyphs.Count; Index++) {
if (CharCurrent + Index == CharValue) {
return WriteOutputParam (
BlockPtr,
BufferLen,
&Glyphs.Cell,
GlyphBuffer,
Cell,
GlyphBufferLen
);
}
BlockPtr += BufferLen;
}
CharCurrent = (UINT16) (CharCurrent + Glyphs.Count);
break;
case EFI_HII_GIBT_GLYPH_DEFAULT:
Status = GetCell (CharCurrent, &FontPackage->GlyphInfoList, &DefaultCell);
if (EFI_ERROR (Status)) {
return Status;
}
BufferLen = BITMAP_LEN_1_BIT (DefaultCell.Width, DefaultCell.Height);
if (CharCurrent == CharValue) {
return WriteOutputParam (
BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK),
BufferLen,
&DefaultCell,
GlyphBuffer,
Cell,
GlyphBufferLen
);
}
CharCurrent++;
BlockPtr += sizeof (EFI_HII_GLYPH_BLOCK) + BufferLen;
break;
case EFI_HII_GIBT_GLYPHS_DEFAULT:
CopyMem (&Length16, BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK), sizeof (UINT16));
Status = GetCell (CharCurrent, &FontPackage->GlyphInfoList, &DefaultCell);
if (EFI_ERROR (Status)) {
return Status;
}
BufferLen = BITMAP_LEN_1_BIT (DefaultCell.Width, DefaultCell.Height);
BlockPtr += sizeof (EFI_HII_GIBT_GLYPHS_DEFAULT_BLOCK) - sizeof (UINT8);
for (Index = 0; Index < Length16; Index++) {
if (CharCurrent + Index == CharValue) {
return WriteOutputParam (
BlockPtr,
BufferLen,
&DefaultCell,
GlyphBuffer,
Cell,
GlyphBufferLen
);
}
BlockPtr += BufferLen;
}
CharCurrent = (UINT16) (CharCurrent + Length16);
break;
case EFI_HII_GIBT_SKIP1:
CharCurrent = (UINT16) (CharCurrent + (UINT16) (*(BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK))));
BlockPtr += sizeof (EFI_HII_GIBT_SKIP1_BLOCK);
break;
case EFI_HII_GIBT_SKIP2:
CopyMem (&Length16, BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK), sizeof (UINT16));
CharCurrent = (UINT16) (CharCurrent + Length16);
BlockPtr += sizeof (EFI_HII_GIBT_SKIP2_BLOCK);
break;
default:
ASSERT (FALSE);
break;
}
if (CharValue < CharCurrent) {
return EFI_NOT_FOUND;
}
}
if (CharValue == (CHAR16) (-1)) {
FontPackage->BaseLine = BaseLine;
FontPackage->Height = (UINT16) (BaseLine - MinOffsetY);
return EFI_SUCCESS;
}
return EFI_NOT_FOUND;
}
/**
Copy a Font Name to a new created EFI_FONT_INFO structure.
This is a internal function.
@param FontName NULL-terminated string.
@param FontInfo a new EFI_FONT_INFO which stores the FontName.
It's caller's responsibility to free this buffer.
@retval EFI_SUCCESS FontInfo is allocated and copied with FontName.
@retval EFI_OUT_OF_RESOURCES The system is out of resources to accomplish the
task.
**/
EFI_STATUS
SaveFontName (
IN EFI_STRING FontName,
OUT EFI_FONT_INFO **FontInfo
)
{
UINTN FontInfoLen;
ASSERT (FontName != NULL && FontInfo != NULL);
FontInfoLen = sizeof (EFI_FONT_INFO) - sizeof (CHAR16) + StrSize (FontName);
*FontInfo = (EFI_FONT_INFO *) AllocateZeroPool (FontInfoLen);
if (*FontInfo == NULL) {
return EFI_OUT_OF_RESOURCES;
}
StrCpy ((*FontInfo)->FontName, FontName);
return EFI_SUCCESS;
}
/**
Retrieve system default font and color.
@param Private HII database driver private data.
@param FontInfo Points to system default font output-related
information. It's caller's responsibility to free
this buffer.
@param FontInfoSize If not NULL, output the size of buffer FontInfo.
@retval EFI_SUCCESS Cell information is added to the GlyphInfoList.
@retval EFI_OUT_OF_RESOURCES The system is out of resources to accomplish the
task.
@retval EFI_INVALID_PARAMETER Any input parameter is invalid.
**/
EFI_STATUS
GetSystemFont (
IN HII_DATABASE_PRIVATE_DATA *Private,
OUT EFI_FONT_DISPLAY_INFO **FontInfo,
OUT UINTN *FontInfoSize OPTIONAL
)
{
EFI_FONT_DISPLAY_INFO *Info;
UINTN InfoSize;
if (Private == NULL || Private->Signature != HII_DATABASE_PRIVATE_DATA_SIGNATURE) {
return EFI_INVALID_PARAMETER;
}
if (FontInfo == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// The standard font always has the name "sysdefault".
//
InfoSize = sizeof (EFI_FONT_DISPLAY_INFO) - sizeof (CHAR16) + StrSize (L"sysdefault");
Info = (EFI_FONT_DISPLAY_INFO *) AllocateZeroPool (InfoSize);
if (Info == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Info->ForegroundColor = mHiiEfiColors[Private->Attribute & 0x0f];
Info->BackgroundColor = mHiiEfiColors[Private->Attribute >> 4];
Info->FontInfoMask = EFI_FONT_INFO_SYS_FONT | EFI_FONT_INFO_SYS_SIZE | EFI_FONT_INFO_SYS_STYLE;
Info->FontInfo.FontStyle = 0;
Info->FontInfo.FontSize = EFI_GLYPH_HEIGHT;
StrCpy (Info->FontInfo.FontName, L"sysdefault");
*FontInfo = Info;
if (FontInfoSize != NULL) {
*FontInfoSize = InfoSize;
}
return EFI_SUCCESS;
}
/**
Check whether EFI_FONT_DISPLAY_INFO points to system default font and color or
returns the system default according to the optional inputs.
This is a internal function.
@param Private HII database driver private data.
@param StringInfo Points to the string output information,
including the color and font.
@param SystemInfo If not NULL, points to system default font and color.
@param SystemInfoLen If not NULL, output the length of default system
info.
@retval TRUE Yes, it points to system default.
@retval FALSE No.
**/
BOOLEAN
IsSystemFontInfo (
IN HII_DATABASE_PRIVATE_DATA *Private,
IN EFI_FONT_DISPLAY_INFO *StringInfo,
OUT EFI_FONT_DISPLAY_INFO **SystemInfo, OPTIONAL
OUT UINTN *SystemInfoLen OPTIONAL
)
{
EFI_STATUS Status;
EFI_FONT_DISPLAY_INFO *SystemDefault;
UINTN DefaultLen;
BOOLEAN Flag;
ASSERT (Private != NULL && Private->Signature == HII_DATABASE_PRIVATE_DATA_SIGNATURE);
if (StringInfo == NULL && SystemInfo == NULL) {
return TRUE;
}
Status = GetSystemFont (Private, &SystemDefault, &DefaultLen);
ASSERT_EFI_ERROR (Status);
//
// Record the system default info.
//
if (SystemInfo != NULL) {
*SystemInfo = SystemDefault;
}
if (SystemInfoLen != NULL) {
*SystemInfoLen = DefaultLen;
}
if (StringInfo == NULL) {
return TRUE;
}
Flag = FALSE;
//
// Check the FontInfoMask to see whether it is retrieving system info.
//
if ((StringInfo->FontInfoMask & (EFI_FONT_INFO_SYS_FONT | EFI_FONT_INFO_ANY_FONT)) == 0) {
if (StrCmp (StringInfo->FontInfo.FontName, SystemDefault->FontInfo.FontName) != 0) {
goto Exit;
}
}
if ((StringInfo->FontInfoMask & (EFI_FONT_INFO_SYS_SIZE | EFI_FONT_INFO_ANY_SIZE)) == 0) {
if (StringInfo->FontInfo.FontSize != SystemDefault->FontInfo.FontSize) {
goto Exit;
}
}
if ((StringInfo->FontInfoMask & (EFI_FONT_INFO_SYS_STYLE | EFI_FONT_INFO_ANY_STYLE)) == 0) {
if (StringInfo->FontInfo.FontStyle != SystemDefault->FontInfo.FontStyle) {
goto Exit;
}
}
if ((StringInfo->FontInfoMask & EFI_FONT_INFO_SYS_FORE_COLOR) == 0) {
if (CompareMem (
&StringInfo->ForegroundColor,
&SystemDefault->ForegroundColor,
sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
) != 0) {
goto Exit;
}
}
if ((StringInfo->FontInfoMask & EFI_FONT_INFO_SYS_BACK_COLOR) == 0) {
if (CompareMem (
&StringInfo->BackgroundColor,
&SystemDefault->BackgroundColor,
sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
) != 0) {
goto Exit;
}
}
Flag = TRUE;
Exit:
if (SystemInfo == NULL) {
if (SystemDefault != NULL) {
FreePool (SystemDefault);
}
}
return Flag;
}
/**
This function checks whether EFI_FONT_INFO exists in current database. If
FontInfoMask is specified, check what options can be used to make a match.
Note that the masks relate to where the system default should be supplied
are ignored by this function.
@param Private Hii database private structure.
@param FontInfo Points to EFI_FONT_INFO structure.
@param FontInfoMask If not NULL, describes what options can be used
to make a match between the font requested and
the font available. The caller must guarantee
this mask is valid.
@param FontHandle On entry, Points to the font handle returned by a
previous call to GetFontInfo() or NULL to start
with the first font.
@param GlobalFontInfo If not NULL, output the corresponding globa font
info.
@retval TRUE Existed
@retval FALSE Not existed
**/
BOOLEAN
IsFontInfoExisted (
IN HII_DATABASE_PRIVATE_DATA *Private,
IN EFI_FONT_INFO *FontInfo,
IN EFI_FONT_INFO_MASK *FontInfoMask, OPTIONAL
IN EFI_FONT_HANDLE FontHandle, OPTIONAL
OUT HII_GLOBAL_FONT_INFO **GlobalFontInfo OPTIONAL
)
{
HII_GLOBAL_FONT_INFO *GlobalFont;
HII_GLOBAL_FONT_INFO *GlobalFontBackup1;
HII_GLOBAL_FONT_INFO *GlobalFontBackup2;
LIST_ENTRY *Link;
EFI_FONT_INFO_MASK Mask;
BOOLEAN Matched;
BOOLEAN VagueMatched1;
BOOLEAN VagueMatched2;
ASSERT (Private != NULL && Private->Signature == HII_DATABASE_PRIVATE_DATA_SIGNATURE);
ASSERT (FontInfo != NULL);
//
// Matched flag represents an exactly match; VagueMatched1 repensents a RESIZE
// or RESTYLE match; VagueMatched2 represents a RESIZE | RESTYLE match.
//
Matched = FALSE;
VagueMatched1 = FALSE;
VagueMatched2 = FALSE;
Mask = 0;
GlobalFontBackup1 = NULL;
GlobalFontBackup2 = NULL;
// The process of where the system default should be supplied instead of
// the specified font info beyonds this function's scope.
//
if (FontInfoMask != NULL) {
Mask = *FontInfoMask & (~SYS_FONT_INFO_MASK);
}
//
// If not NULL, FontHandle points to the next node of the last searched font
// node by previous call.
//
if (FontHandle == NULL) {
Link = Private->FontInfoList.ForwardLink;
} else {
Link = (LIST_ENTRY *) FontHandle;
}
for (; Link != &Private->FontInfoList; Link = Link->ForwardLink) {
GlobalFont = CR (Link, HII_GLOBAL_FONT_INFO, Entry, HII_GLOBAL_FONT_INFO_SIGNATURE);
if (FontInfoMask == NULL) {
if (CompareMem (GlobalFont->FontInfo, FontInfo, GlobalFont->FontInfoSize) == 0) {
if (GlobalFontInfo != NULL) {
*GlobalFontInfo = GlobalFont;
}
return TRUE;
}
} else {
//
// Check which options could be used to make a match.
//
switch (Mask) {
case EFI_FONT_INFO_ANY_FONT:
if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle &&
GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
Matched = TRUE;
}
break;
case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_ANY_STYLE:
if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
Matched = TRUE;
}
break;
case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_ANY_SIZE:
if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
Matched = TRUE;
}
break;
case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_ANY_SIZE | EFI_FONT_INFO_ANY_STYLE:
Matched = TRUE;
break;
//
// If EFI_FONT_INFO_RESTYLE is specified, then the system may attempt to
// remove some of the specified styles to meet the style requested.
//
case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_RESTYLE:
if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
Matched = TRUE;
} else if ((GlobalFont->FontInfo->FontStyle & FontInfo->FontStyle) == FontInfo->FontStyle) {
VagueMatched1 = TRUE;
GlobalFontBackup1 = GlobalFont;
}
}
break;
//
// If EFI_FONT_INFO_RESIZE is specified, then the sytem may attempt to
// stretch or shrink a font to meet the size requested.
//
case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_RESIZE:
if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
Matched = TRUE;
} else {
VagueMatched1 = TRUE;
GlobalFontBackup1 = GlobalFont;
}
}
break;
case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_RESTYLE | EFI_FONT_INFO_RESIZE:
if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
Matched = TRUE;
} else {
VagueMatched1 = TRUE;
GlobalFontBackup1 = GlobalFont;
}
} else if ((GlobalFont->FontInfo->FontStyle & FontInfo->FontStyle) == FontInfo->FontStyle) {
if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
VagueMatched1 = TRUE;
GlobalFontBackup1 = GlobalFont;
} else {
VagueMatched2 = TRUE;
GlobalFontBackup2 = GlobalFont;
}
}
break;
case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_ANY_STYLE | EFI_FONT_INFO_RESIZE:
if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
Matched = TRUE;
} else {
VagueMatched1 = TRUE;
GlobalFontBackup1 = GlobalFont;
}
break;
case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_ANY_SIZE | EFI_FONT_INFO_RESTYLE:
if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
Matched = TRUE;
} else if ((GlobalFont->FontInfo->FontStyle & FontInfo->FontStyle) == FontInfo->FontStyle) {
VagueMatched1 = TRUE;
GlobalFontBackup1 = GlobalFont;
}
break;
case EFI_FONT_INFO_ANY_STYLE:
if ((CompareMem (
GlobalFont->FontInfo->FontName,
FontInfo->FontName,
StrSize (FontInfo->FontName)
) == 0) &&
GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
Matched = TRUE;
}
break;
case EFI_FONT_INFO_ANY_STYLE | EFI_FONT_INFO_ANY_SIZE:
if (CompareMem (
GlobalFont->FontInfo->FontName,
FontInfo->FontName,
StrSize (FontInfo->FontName)
) == 0) {
Matched = TRUE;
}
break;
case EFI_FONT_INFO_ANY_STYLE | EFI_FONT_INFO_RESIZE:
if (CompareMem (
GlobalFont->FontInfo->FontName,
FontInfo->FontName,
StrSize (FontInfo->FontName)
) == 0) {
if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
Matched = TRUE;
} else {
VagueMatched1 = TRUE;
GlobalFontBackup1 = GlobalFont;
}
}
break;
case EFI_FONT_INFO_ANY_SIZE:
if ((CompareMem (
GlobalFont->FontInfo->FontName,
FontInfo->FontName,
StrSize (FontInfo->FontName)
) == 0) &&
GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
Matched = TRUE;
}
break;
case EFI_FONT_INFO_ANY_SIZE | EFI_FONT_INFO_RESTYLE:
if (CompareMem (
GlobalFont->FontInfo->FontName,
FontInfo->FontName,
StrSize (FontInfo->FontName)
) == 0) {
if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
Matched = TRUE;
} else if ((GlobalFont->FontInfo->FontStyle & FontInfo->FontStyle) == FontInfo->FontStyle) {
VagueMatched1 = TRUE;
GlobalFontBackup1 = GlobalFont;
}
}
break;
case EFI_FONT_INFO_RESTYLE:
if ((CompareMem (
GlobalFont->FontInfo->FontName,
FontInfo->FontName,
StrSize (FontInfo->FontName)
) == 0) &&
GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
Matched = TRUE;
} else if ((GlobalFont->FontInfo->FontStyle & FontInfo->FontStyle) == FontInfo->FontStyle) {
VagueMatched1 = TRUE;
GlobalFontBackup1 = GlobalFont;
}
}
break;
case EFI_FONT_INFO_RESIZE:
if ((CompareMem (
GlobalFont->FontInfo->FontName,
FontInfo->FontName,
StrSize (FontInfo->FontName)
) == 0) &&
GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
Matched = TRUE;
} else {
VagueMatched1 = TRUE;
GlobalFontBackup1 = GlobalFont;
}
}
break;
case EFI_FONT_INFO_RESIZE | EFI_FONT_INFO_RESTYLE:
if (CompareMem (
GlobalFont->FontInfo->FontName,
FontInfo->FontName,
StrSize (FontInfo->FontName)
) == 0) {
if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
Matched = TRUE;
} else {
VagueMatched1 = TRUE;
GlobalFontBackup1 = GlobalFont;
}
} else if ((GlobalFont->FontInfo->FontStyle & FontInfo->FontStyle) == FontInfo->FontStyle) {
if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
VagueMatched1 = TRUE;
GlobalFontBackup1 = GlobalFont;
} else {
VagueMatched2 = TRUE;
GlobalFontBackup2 = GlobalFont;
}
}
}
break;
default:
break;
}
if (Matched) {
if (GlobalFontInfo != NULL) {
*GlobalFontInfo = GlobalFont;
}
return TRUE;
}
}
}
if (VagueMatched1) {
if (GlobalFontInfo != NULL) {
*GlobalFontInfo = GlobalFontBackup1;
}
return TRUE;
} else if (VagueMatched2) {
if (GlobalFontInfo != NULL) {
*GlobalFontInfo = GlobalFontBackup2;
}
return TRUE;
}
return FALSE;
}
/**
Check whether the unicode represents a line break or not.
This is a internal function. Please see Section 27.2.6 of the UEFI Specification
for a description of the supported string format.
@param Char Unicode character
@retval 0 Yes, it forces a line break.
@retval 1 Yes, it presents a line break opportunity
@retval 2 Yes, it requires a line break happen before and after it.
@retval -1 No, it is not a link break.
**/
INT8
IsLineBreak (
IN CHAR16 Char
)
{
switch (Char) {
//
// Mandatory line break characters, which force a line-break
//
case 0x000C:
case 0x000D:
case 0x2028:
case 0x2029:
return 0;
//
// Space characters, which is taken as a line-break opportunity
//
case 0x0020:
case 0x1680:
case 0x2000:
case 0x2001:
case 0x2002:
case 0x2003:
case 0x2004:
case 0x2005:
case 0x2006:
case 0x2008:
case 0x2009:
case 0x200A:
case 0x205F:
//
// In-Word Break Opportunities
//
case 0x200B:
return 1;
//
// A space which is not a line-break opportunity
//
case 0x00A0:
case 0x202F:
//
// A hyphen which is not a line-break opportunity
//
case 0x2011:
return -1;
//
// Hyphen characters which describe line break opportunities after the character
//
case 0x058A:
case 0x2010:
case 0x2012:
case 0x2013:
case 0x0F0B:
case 0x1361:
case 0x17D5:
return 1;
//
// A hyphen which describes line break opportunities before and after them, but not between a pair of them
//
case 0x2014:
return 2;
}
return -1;
}
/**
Renders a string to a bitmap or to the display.
@param This A pointer to the EFI_HII_FONT_PROTOCOL instance.
@param Flags Describes how the string is to be drawn.
@param String Points to the null-terminated string to be
displayed.
@param StringInfo Points to the string output information,
including the color and font. If NULL, then the
string will be output in the default system font
and color.
@param Blt If this points to a non-NULL on entry, this
points to the image, which is Width pixels wide
and Height pixels high. The string will be drawn
onto this image and
EFI_HII_OUT_FLAG_CLIP is implied. If this points
to a NULL on entry, then a buffer
will be allocated to hold the generated image and
the pointer updated on exit. It is the caller's
responsibility to free this buffer.
@param BltX Specifies the offset from the left and top edge
of the image of the first character cell in the
image.
@param BltY Specifies the offset from the left and top edge
of the image of the first character cell in the
image.
@param RowInfoArray If this is non-NULL on entry, then on exit, this
will point to an allocated buffer containing
row information and RowInfoArraySize will be
updated to contain the number of elements.
This array describes the characters which were at
least partially drawn and the heights of the
rows. It is the caller's responsibility to free
this buffer.
@param RowInfoArraySize If this is non-NULL on entry, then on exit it
contains the number of elements in RowInfoArray.
@param ColumnInfoArray If this is non-NULL, then on return it will be
filled with the horizontal offset for each
character in the string on the row where it is
displayed. Non-printing characters will have
the offset ~0. The caller is responsible to
allocate a buffer large enough so that there
is one entry for each character in the string,
not including the null-terminator. It is possible
when character display is normalized that some
character cells overlap.
@retval EFI_SUCCESS The string was successfully rendered.
@retval EFI_OUT_OF_RESOURCES Unable to allocate an output buffer for
RowInfoArray or Blt.
@retval EFI_INVALID_PARAMETER The String or Blt was NULL.
@retval EFI_INVALID_PARAMETER Flags were invalid combination..
**/
EFI_STATUS
EFIAPI
HiiStringToImage (
IN CONST EFI_HII_FONT_PROTOCOL *This,
IN EFI_HII_OUT_FLAGS Flags,
IN CONST EFI_STRING String,
IN CONST EFI_FONT_DISPLAY_INFO *StringInfo OPTIONAL,
IN OUT EFI_IMAGE_OUTPUT **Blt,
IN UINTN BltX,
IN UINTN BltY,
OUT EFI_HII_ROW_INFO **RowInfoArray OPTIONAL,
OUT UINTN *RowInfoArraySize OPTIONAL,
OUT UINTN *ColumnInfoArray OPTIONAL
)
{
EFI_STATUS Status;
HII_DATABASE_PRIVATE_DATA *Private;
UINT8 **GlyphBuf;
EFI_HII_GLYPH_INFO *Cell;
UINT8 *Attributes;
EFI_IMAGE_OUTPUT *Image;
EFI_STRING StringPtr;
EFI_STRING StringTmp;
EFI_HII_ROW_INFO *RowInfo;
UINTN LineWidth;
UINTN LineHeight;
UINTN LineOffset;
UINTN LastLineHeight;
UINTN BaseLineOffset;
UINT16 MaxRowNum;
UINT16 RowIndex;
UINTN Index;
UINTN NextIndex;
UINTN Index1;
EFI_FONT_DISPLAY_INFO *StringInfoOut;
EFI_FONT_DISPLAY_INFO *SystemDefault;
EFI_FONT_HANDLE FontHandle;
EFI_STRING StringIn;
EFI_STRING StringIn2;
UINT16 Height;
UINT16 BaseLine;
EFI_FONT_INFO *FontInfo;
BOOLEAN SysFontFlag;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background;
BOOLEAN Transparent;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BufferPtr;
UINTN RowInfoSize;
BOOLEAN LineBreak;
UINTN StrLength;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *RowBufferPtr;
HII_GLOBAL_FONT_INFO *GlobalFont;
//
// Check incoming parameters.
//
if (This == NULL || String == NULL || Blt == NULL) {
return EFI_INVALID_PARAMETER;
}
if (*Blt == NULL) {
//
// These two flag cannot be used if Blt is NULL upon entry.
//
if ((Flags & EFI_HII_OUT_FLAG_TRANSPARENT) == EFI_HII_OUT_FLAG_TRANSPARENT) {
return EFI_INVALID_PARAMETER;
}
if ((Flags & EFI_HII_OUT_FLAG_CLIP) == EFI_HII_OUT_FLAG_CLIP) {
return EFI_INVALID_PARAMETER;
}
}
//
// These two flags require that EFI_HII_OUT_FLAG_CLIP be also set.
//
if ((Flags & (EFI_HII_OUT_FLAG_CLIP | EFI_HII_OUT_FLAG_CLIP_CLEAN_X)) == EFI_HII_OUT_FLAG_CLIP_CLEAN_X) {
return EFI_INVALID_PARAMETER;
}
if ((Flags & (EFI_HII_OUT_FLAG_CLIP | EFI_HII_OUT_FLAG_CLIP_CLEAN_Y)) == EFI_HII_OUT_FLAG_CLIP_CLEAN_Y) {
return EFI_INVALID_PARAMETER;
}
//
// This flag cannot be used with EFI_HII_OUT_FLAG_CLEAN_X.
//
if ((Flags & (EFI_HII_OUT_FLAG_WRAP | EFI_HII_OUT_FLAG_CLIP_CLEAN_X)) == (EFI_HII_OUT_FLAG_WRAP | EFI_HII_OUT_FLAG_CLIP_CLEAN_X)) {
return EFI_INVALID_PARAMETER;
}
if (*Blt == NULL) {
//
// Create a new bitmap and draw the string onto this image.
//
Image = AllocateZeroPool (sizeof (EFI_IMAGE_OUTPUT));
if (Image == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Image->Width = 800;
Image->Height = 600;
Image->Image.Bitmap = AllocateZeroPool (Image->Width * Image->Height *sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
if (Image->Image.Bitmap == NULL) {
FreePool (Image);
return EFI_OUT_OF_RESOURCES;
}
//
// Other flags are not permitted when Blt is NULL.
//
Flags &= EFI_HII_OUT_FLAG_WRAP | EFI_HII_IGNORE_IF_NO_GLYPH | EFI_HII_IGNORE_LINE_BREAK;
*Blt = Image;
}
StrLength = StrLen(String);
GlyphBuf = (UINT8 **) AllocateZeroPool (StrLength * sizeof (UINT8 *));
ASSERT (GlyphBuf != NULL);
Cell = (EFI_HII_GLYPH_INFO *) AllocateZeroPool (StrLength * sizeof (EFI_HII_GLYPH_INFO));
ASSERT (Cell != NULL);
Attributes = (UINT8 *) AllocateZeroPool (StrLength * sizeof (UINT8));
ASSERT (Attributes != NULL);
RowInfo = NULL;
Status = EFI_SUCCESS;
StringIn2 = NULL;
SystemDefault = NULL;
StringIn = NULL;
//
// Calculate the string output information, including specified color and font .
// If StringInfo does not points to system font info, it must indicate an existing
// EFI_FONT_INFO.
//
StringInfoOut = NULL;
FontHandle = NULL;
Private = HII_FONT_DATABASE_PRIVATE_DATA_FROM_THIS (This);
SysFontFlag = IsSystemFontInfo (Private, (EFI_FONT_DISPLAY_INFO *) StringInfo, &SystemDefault, NULL);
if (SysFontFlag) {
FontInfo = NULL;
Height = SystemDefault->FontInfo.FontSize;
BaseLine = SystemDefault->FontInfo.FontSize;
Foreground = SystemDefault->ForegroundColor;
Background = SystemDefault->BackgroundColor;
} else {
//
// StringInfo must not be NULL if it is not system info.
//
ASSERT (StringInfo != NULL);
Status = HiiGetFontInfo (This, &FontHandle, (EFI_FONT_DISPLAY_INFO *) StringInfo, &StringInfoOut, NULL);
if (Status == EFI_NOT_FOUND) {
//
// The specified EFI_FONT_DISPLAY_INFO does not exist in current database.
// Use the system font instead. Still use the color specified by StringInfo.
//
SysFontFlag = TRUE;
FontInfo = NULL;
Height = SystemDefault->FontInfo.FontSize;
BaseLine = SystemDefault->FontInfo.FontSize;
Foreground = ((EFI_FONT_DISPLAY_INFO *) StringInfo)->ForegroundColor;
Background = ((EFI_FONT_DISPLAY_INFO *) StringInfo)->BackgroundColor;
} else if (Status == EFI_SUCCESS) {
FontInfo = &StringInfoOut->FontInfo;
IsFontInfoExisted (Private, FontInfo, NULL, NULL, &GlobalFont);
Height = GlobalFont->FontPackage->Height;
BaseLine = GlobalFont->FontPackage->BaseLine;
Foreground = StringInfoOut->ForegroundColor;
Background = StringInfoOut->BackgroundColor;
} else {
goto Exit;
}
}
//
// Use the maxinum height of font as the base line.
// And, use the maxinum height as line height.
//
LineHeight = Height;
LastLineHeight = Height;
BaseLineOffset = Height - BaseLine;
//
// Parse the string to be displayed to drop some ignored characters.
//
StringPtr = String;
//
// Ignore line-break characters only. Hyphens or dash character will be displayed
// without line-break opportunity.
//
if ((Flags & EFI_HII_IGNORE_LINE_BREAK) == EFI_HII_IGNORE_LINE_BREAK) {
StringIn = AllocateZeroPool (StrSize (StringPtr));
if (StringIn == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
StringTmp = StringIn;
while (*StringPtr != 0) {
if (IsLineBreak (*StringPtr) == 0) {
StringPtr++;
} else {
*StringTmp++ = *StringPtr++;
}
}
*StringTmp = 0;
StringPtr = StringIn;
}
//
// If EFI_HII_IGNORE_IF_NO_GLYPH is set, then characters which have no glyphs
// are not drawn. Otherwise they are replaced wth Unicode character 0xFFFD.
//
StringIn2 = AllocateZeroPool (StrSize (StringPtr));
if (StringIn2 == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
Index = 0;
StringTmp = StringIn2;
StrLength = StrLen(StringPtr);
while (*StringPtr != 0 && Index < StrLength) {
if (IsLineBreak (*StringPtr) == 0) {
*StringTmp++ = *StringPtr++;
Index++;
continue;
}
Status = GetGlyphBuffer (Private, *StringPtr, FontInfo, &GlyphBuf[Index], &Cell[Index], &Attributes[Index]);
if (Status == EFI_NOT_FOUND) {
if ((Flags & EFI_HII_IGNORE_IF_NO_GLYPH) == EFI_HII_IGNORE_IF_NO_GLYPH) {
GlyphBuf[Index] = NULL;
ZeroMem (&Cell[Index], sizeof (Cell[Index]));
Status = EFI_SUCCESS;
} else {
//
// Unicode 0xFFFD must exist in current hii database if this flag is not set.
//
Status = GetGlyphBuffer (
Private,
REPLACE_UNKNOWN_GLYPH,
FontInfo,
&GlyphBuf[Index],
&Cell[Index],
&Attributes[Index]
);
if (EFI_ERROR (Status)) {
Status = EFI_INVALID_PARAMETER;
}
}
}
if (EFI_ERROR (Status)) {
goto Exit;
}
*StringTmp++ = *StringPtr++;
Index++;
}
*StringTmp = 0;
StringPtr = StringIn2;
//
// Draw the string according to the specified EFI_HII_OUT_FLAGS and Blt.
// If Blt is not NULL, then EFI_HII_OUT_FLAG_CLIP is implied, render this string
// to an existing image (bitmap or screen depending on flags) pointed by "*Blt".
// Otherwise render this string to a new allocated image and output it.
//
Image = *Blt;
BufferPtr = Image->Image.Bitmap + Image->Width * BltY + BltX;
if (Image->Height < BltY) {
//
// the top edge of the image should be in Image resolution scope.
//
Status = EFI_INVALID_PARAMETER;
goto Exit;
}
MaxRowNum = (UINT16) ((Image->Height - BltY) / Height);
if ((Image->Height - BltY) % Height != 0) {
LastLineHeight = (Image->Height - BltY) % Height;
MaxRowNum++;
}
RowInfo = (EFI_HII_ROW_INFO *) AllocateZeroPool (MaxRowNum * sizeof (EFI_HII_ROW_INFO));
if (RowInfo == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
//
// Format the glyph buffer according to flags.
//
Transparent = (BOOLEAN) ((Flags & EFI_HII_OUT_FLAG_TRANSPARENT) == EFI_HII_OUT_FLAG_TRANSPARENT ? TRUE : FALSE);
for (RowIndex = 0, Index = 0; RowIndex < MaxRowNum && StringPtr[Index] != 0; ) {
LineWidth = 0;
LineBreak = FALSE;
//
// Clip the final row if the row's bottom-most on pixel cannot fit when
// EFI_HII_OUT_FLAG_CLEAN_Y is set.
//
if (RowIndex == MaxRowNum - 1) {
if ((Flags & EFI_HII_OUT_FLAG_CLIP_CLEAN_Y) == EFI_HII_OUT_FLAG_CLIP_CLEAN_Y && LastLineHeight < LineHeight ) {
//
// Don't draw at all if the row's bottom-most on pixel cannot fit.
//
break;
}
LineHeight = LastLineHeight;
}
//
// Calculate how many characters there are in a row.
//
RowInfo[RowIndex].StartIndex = Index;
while (LineWidth + BltX < Image->Width && StringPtr[Index] != 0) {
if ((Flags & EFI_HII_IGNORE_LINE_BREAK) == 0 &&
IsLineBreak (StringPtr[Index]) == 0) {
//
// It forces a line break that ends this row.
//
Index++;
LineBreak = TRUE;
break;
}
//
// If the glyph of the character is existing, then accumulate the actual printed width
//
LineWidth += (UINTN) Cell[Index].AdvanceX;
Index++;
}
//
// Record index of next char.
//
NextIndex = Index;
//
// Return to the previous char.
//
Index--;
if (LineBreak && Index > 0 ) {
//
// Return the previous non line break char.
//
Index --;
}
//
// If this character is the last character of a row, we need not
// draw its (AdvanceX - Width - OffsetX) for next character.
//
LineWidth -= (UINTN) (Cell[Index].AdvanceX - Cell[Index].Width - Cell[Index].OffsetX);
//
// Clip the right-most character if cannot fit when EFI_HII_OUT_FLAG_CLEAN_X is set.
//
if (LineWidth + BltX <= Image->Width ||
(LineWidth + BltX > Image->Width && (Flags & EFI_HII_OUT_FLAG_CLIP_CLEAN_X) == 0)) {
//
// Record right-most character in RowInfo even if it is partially displayed.
//
RowInfo[RowIndex].EndIndex = Index;
RowInfo[RowIndex].LineWidth = LineWidth;
RowInfo[RowIndex].LineHeight = LineHeight;
RowInfo[RowIndex].BaselineOffset = BaseLineOffset;
} else {
//
// When EFI_HII_OUT_FLAG_CLEAN_X is set, it will not draw a character
// if its right-most on pixel cannot fit.
//
if (Index > RowInfo[RowIndex].StartIndex) {
//
// Don't draw the last char on this row. And, don't draw the second last char (AdvanceX - Width - OffsetX).
//
LineWidth -= (UINTN) (Cell[Index].Width + Cell[Index].OffsetX);
LineWidth -= (UINTN) (Cell[Index - 1].AdvanceX - Cell[Index - 1].Width - Cell[Index - 1].OffsetX);
RowInfo[RowIndex].EndIndex = Index - 1;
RowInfo[RowIndex].LineWidth = LineWidth;
RowInfo[RowIndex].LineHeight = LineHeight;
RowInfo[RowIndex].BaselineOffset = BaseLineOffset;
} else {
//
// There is no enough column to draw any character, so set current line width to zero.
// And go to draw Next line if LineBreak is set.
//
RowInfo[RowIndex].LineWidth = 0;
goto NextLine;
}
}
//
// EFI_HII_OUT_FLAG_WRAP will wrap the text at the right-most line-break
// opportunity prior to a character whose right-most extent would exceed Width.
// Search the right-most line-break opportunity here.
//
if ((Flags & EFI_HII_OUT_FLAG_WRAP) == EFI_HII_OUT_FLAG_WRAP &&
(RowInfo[RowIndex].LineWidth + BltX > Image->Width || StringPtr[NextIndex] != 0) &&
!LineBreak) {
if ((Flags & EFI_HII_IGNORE_LINE_BREAK) == 0) {
LineWidth = RowInfo[RowIndex].LineWidth;
for (Index1 = RowInfo[RowIndex].EndIndex; Index1 >= RowInfo[RowIndex].StartIndex; Index1--) {
if (Index1 == RowInfo[RowIndex].EndIndex) {
LineWidth -= (Cell[Index1].Width + Cell[Index1].OffsetX);
} else {
LineWidth -= Cell[Index1].AdvanceX;
}
if (IsLineBreak (StringPtr[Index1]) > 0) {
LineBreak = TRUE;
if (Index1 > RowInfo[RowIndex].StartIndex) {
RowInfo[RowIndex].EndIndex = Index1 - 1;
}
//
// relocate to the character after the right-most line break opportunity of this line
//
NextIndex = Index1 + 1;
break;
}
//
// If don't find a line break opportunity from EndIndex to StartIndex,
// then jump out.
//
if (Index1 == RowInfo[RowIndex].StartIndex)
break;
}
//
// Update LineWidth to the real width
//
if (IsLineBreak (StringPtr[Index1]) > 0) {
if (Index1 == RowInfo[RowIndex].StartIndex) {
LineWidth = 0;
} else {
LineWidth -= (UINTN) (Cell[Index1 - 1].AdvanceX - Cell[Index1 - 1].Width - Cell[Index1 - 1].OffsetX);
}
RowInfo[RowIndex].LineWidth = LineWidth;
}
}
//
// If no line-break opportunity can be found, then the text will
// behave as if EFI_HII_OUT_FLAG_CLEAN_X is set.
//
if (!LineBreak) {
LineWidth = RowInfo[RowIndex].LineWidth;
Index1 = RowInfo[RowIndex].EndIndex;
if (LineWidth + BltX > Image->Width) {
if (Index1 > RowInfo[RowIndex].StartIndex) {
//
// Don't draw the last char on this row. And, don't draw the second last char (AdvanceX - Width - OffsetX).
//
LineWidth -= (UINTN) (Cell[Index1].Width + Cell[Index1].OffsetX);
LineWidth -= (UINTN) (Cell[Index1 - 1].AdvanceX - Cell[Index1 - 1].Width - Cell[Index1 - 1].OffsetX);
RowInfo[RowIndex].EndIndex = Index1 - 1;
RowInfo[RowIndex].LineWidth = LineWidth;
} else {
//
// There is no enough column to draw any character, so set current line width to zero.
// And go to draw Next line if LineBreak is set.
//
RowInfo[RowIndex].LineWidth = 0;
goto NextLine;
}
}
}
}
//
// LineWidth can't exceed Image width.
//
if (RowInfo[RowIndex].LineWidth + BltX > Image->Width) {
RowInfo[RowIndex].LineWidth = Image->Width - BltX;
}
//
// Draw it to screen or existing bitmap depending on whether
// EFI_HII_DIRECT_TO_SCREEN is set.
//
LineOffset = 0;
if ((Flags & EFI_HII_DIRECT_TO_SCREEN) == EFI_HII_DIRECT_TO_SCREEN) {
BltBuffer = NULL;
if (RowInfo[RowIndex].LineWidth != 0) {
BltBuffer = AllocateZeroPool (RowInfo[RowIndex].LineWidth * RowInfo[RowIndex].LineHeight * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
if (BltBuffer == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
//
// Set BufferPtr to Origin by adding baseline to the starting position.
//
BufferPtr = BltBuffer + BaseLine * RowInfo[RowIndex].LineWidth;
}
for (Index1 = RowInfo[RowIndex].StartIndex; Index1 <= RowInfo[RowIndex].EndIndex; Index1++) {
if (RowInfo[RowIndex].LineWidth > 0 && RowInfo[RowIndex].LineWidth > LineOffset) {
//
// Only BLT these character which have corrsponding glyph in font basebase.
//
GlyphToImage (
GlyphBuf[Index1],
Foreground,
Background,
(UINT16) RowInfo[RowIndex].LineWidth,
BaseLine,
RowInfo[RowIndex].LineWidth - LineOffset,
RowInfo[RowIndex].LineHeight,
Transparent,
&Cell[Index1],
Attributes[Index1],
&BufferPtr
);
}
if (ColumnInfoArray != NULL) {
if ((GlyphBuf[Index1] == NULL && Cell[Index1].AdvanceX == 0)
|| RowInfo[RowIndex].LineWidth == 0) {
*ColumnInfoArray = (UINTN) ~0;
} else {
*ColumnInfoArray = LineOffset + Cell[Index1].OffsetX + BltX;
}
ColumnInfoArray++;
}
LineOffset += Cell[Index1].AdvanceX;
}
if (BltBuffer != NULL) {
Status = Image->Image.Screen->Blt (
Image->Image.Screen,
BltBuffer,
EfiBltBufferToVideo,
0,
0,
BltX,
BltY,
RowInfo[RowIndex].LineWidth,
RowInfo[RowIndex].LineHeight,
0
);
if (EFI_ERROR (Status)) {
FreePool (BltBuffer);
goto Exit;
}
FreePool (BltBuffer);
}
} else {
//
// Save the starting position for calculate the starting postition of next row.
//
RowBufferPtr = BufferPtr;
//
// Set BufferPtr to Origin by adding baseline to the starting position.
//
BufferPtr = BufferPtr + BaseLine * Image->Width;
for (Index1 = RowInfo[RowIndex].StartIndex; Index1 <= RowInfo[RowIndex].EndIndex; Index1++) {
if (RowInfo[RowIndex].LineWidth > 0 && RowInfo[RowIndex].LineWidth > LineOffset) {
//
// Only BLT these character which have corrsponding glyph in font basebase.
//
GlyphToImage (
GlyphBuf[Index1],
Foreground,
Background,
Image->Width,
BaseLine,
RowInfo[RowIndex].LineWidth - LineOffset,
RowInfo[RowIndex].LineHeight,
Transparent,
&Cell[Index1],
Attributes[Index1],
&BufferPtr
);
}
if (ColumnInfoArray != NULL) {
if ((GlyphBuf[Index1] == NULL && Cell[Index1].AdvanceX == 0)
|| RowInfo[RowIndex].LineWidth == 0) {
*ColumnInfoArray = (UINTN) ~0;
} else {
*ColumnInfoArray = LineOffset + Cell[Index1].OffsetX + BltX;
}
ColumnInfoArray++;
}
LineOffset += Cell[Index1].AdvanceX;
}
//
// Jump to starting position of next row.
//
if (RowIndex == 0) {
BufferPtr = RowBufferPtr - BltX + LineHeight * Image->Width;
} else {
BufferPtr = RowBufferPtr + LineHeight * Image->Width;
}
}
NextLine:
//
// Recalculate the start point of X/Y axis to draw multi-lines with the order of top-to-down
//
BltX = 0;
BltY += RowInfo[RowIndex].LineHeight;
RowIndex++;
Index = NextIndex;
if (!LineBreak) {
//
// If there is not a mandatory line break or line break opportunity, only render one line to image
//
break;
}
}
//
// Write output parameters.
//
RowInfoSize = RowIndex * sizeof (EFI_HII_ROW_INFO);
if (RowInfoArray != NULL) {
if (RowInfoSize > 0) {
*RowInfoArray = AllocateZeroPool (RowInfoSize);
if (*RowInfoArray == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
CopyMem (*RowInfoArray, RowInfo, RowInfoSize);
} else {
*RowInfoArray = NULL;
}
}
if (RowInfoArraySize != NULL) {
*RowInfoArraySize = RowIndex;
}
Status = EFI_SUCCESS;
Exit:
for (Index = 0; Index < StrLength; Index++) {
if (GlyphBuf[Index] != NULL) {
FreePool (GlyphBuf[Index]);
}
}
if (StringIn != NULL) {
FreePool (StringIn);
}
if (StringIn2 != NULL) {
FreePool (StringIn2);
}
if (StringInfoOut != NULL) {
FreePool (StringInfoOut);
}
if (RowInfo != NULL) {
FreePool (RowInfo);
}
if (SystemDefault != NULL) {
FreePool (SystemDefault);
}
if (GlyphBuf != NULL) {
FreePool (GlyphBuf);
}
if (Cell != NULL) {
FreePool (Cell);
}
if (Attributes != NULL) {
FreePool (Attributes);
}
return Status;
}
/**
Render a string to a bitmap or the screen containing the contents of the specified string.
@param This A pointer to the EFI_HII_FONT_PROTOCOL instance.
@param Flags Describes how the string is to be drawn.
@param PackageList The package list in the HII database to search
for the specified string.
@param StringId The string's id, which is unique within
PackageList.
@param Language Points to the language for the retrieved string.
If NULL, then the current system language is
used.
@param StringInfo Points to the string output information,
including the color and font. If NULL, then the
string will be output in the default system font
and color.
@param Blt If this points to a non-NULL on entry, this
points to the image, which is Width pixels wide
and Height pixels high. The string will be drawn
onto this image and
EFI_HII_OUT_FLAG_CLIP is implied. If this points
to a NULL on entry, then a buffer
will be allocated to hold the generated image and
the pointer updated on exit. It is the caller's
responsibility to free this buffer.
@param BltX Specifies the offset from the left and top edge
of the image of the first character cell in the
image.
@param BltY Specifies the offset from the left and top edge
of the image of the first character cell in the
image.
@param RowInfoArray If this is non-NULL on entry, then on exit, this
will point to an allocated buffer containing
row information and RowInfoArraySize will be
updated to contain the number of elements.
This array describes the characters which were at
least partially drawn and the heights of the
rows. It is the caller's responsibility to free
this buffer.
@param RowInfoArraySize If this is non-NULL on entry, then on exit it
contains the number of elements in RowInfoArray.
@param ColumnInfoArray If this is non-NULL, then on return it will be
filled with the horizontal offset for each
character in the string on the row where it is
displayed. Non-printing characters will have
the offset ~0. The caller is responsible to
allocate a buffer large enough so that there
is one entry for each character in the string,
not including the null-terminator. It is possible
when character display is normalized that some
character cells overlap.
@retval EFI_SUCCESS The string was successfully rendered.
@retval EFI_OUT_OF_RESOURCES Unable to allocate an output buffer for
RowInfoArray or Blt.
@retval EFI_INVALID_PARAMETER The Blt or PackageList was NULL.
@retval EFI_INVALID_PARAMETER Flags were invalid combination.
@retval EFI_NOT_FOUND The specified PackageList is not in the Database or the stringid is not
in the specified PackageList.
**/
EFI_STATUS
EFIAPI
HiiStringIdToImage (
IN CONST EFI_HII_FONT_PROTOCOL *This,
IN EFI_HII_OUT_FLAGS Flags,
IN EFI_HII_HANDLE PackageList,
IN EFI_STRING_ID StringId,
IN CONST CHAR8* Language,
IN CONST EFI_FONT_DISPLAY_INFO *StringInfo OPTIONAL,
IN OUT EFI_IMAGE_OUTPUT **Blt,
IN UINTN BltX,
IN UINTN BltY,
OUT EFI_HII_ROW_INFO **RowInfoArray OPTIONAL,
OUT UINTN *RowInfoArraySize OPTIONAL,
OUT UINTN *ColumnInfoArray OPTIONAL
)
{
EFI_STATUS Status;
HII_DATABASE_PRIVATE_DATA *Private;
EFI_HII_STRING_PROTOCOL *HiiString;
EFI_STRING String;
UINTN StringSize;
UINTN FontLen;
EFI_FONT_INFO *StringFontInfo;
EFI_FONT_DISPLAY_INFO *NewStringInfo;
CHAR8 TempSupportedLanguages;
CHAR8 *SupportedLanguages;
UINTN SupportedLanguagesSize;
CHAR8 *CurrentLanguage;
CHAR8 *BestLanguage;
if (This == NULL || PackageList == NULL || Blt == NULL || PackageList == NULL) {
return EFI_INVALID_PARAMETER;
}
if (!IsHiiHandleValid (PackageList)) {
return EFI_NOT_FOUND;
}
//
// Initialize string pointers to be NULL
//
SupportedLanguages = NULL;
CurrentLanguage = NULL;
BestLanguage = NULL;
String = NULL;
StringFontInfo = NULL;
NewStringInfo = NULL;
//
// Get the string to be displayed.
//
Private = HII_FONT_DATABASE_PRIVATE_DATA_FROM_THIS (This);
HiiString = &Private->HiiString;
//
// Get the size of supported language.
//
SupportedLanguagesSize = 0;
Status = HiiString->GetLanguages (
HiiString,
PackageList,
&TempSupportedLanguages,
&SupportedLanguagesSize
);
if (Status != EFI_BUFFER_TOO_SMALL) {
return Status;
}
SupportedLanguages = AllocatePool (SupportedLanguagesSize);
if (SupportedLanguages == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Status = HiiString->GetLanguages (
HiiString,
PackageList,
SupportedLanguages,
&SupportedLanguagesSize
);
if (EFI_ERROR (Status)) {
goto Exit;
}
if (Language == NULL) {
Language = "";
}
GetEfiGlobalVariable2 (L"PlatformLang", (VOID**)&CurrentLanguage, NULL);
BestLanguage = GetBestLanguage (
SupportedLanguages,
FALSE,
Language,
(CurrentLanguage == NULL) ? CurrentLanguage : "",
(CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLang),
NULL
);
if (BestLanguage == NULL) {
Status = EFI_NOT_FOUND;
goto Exit;
}
StringSize = MAX_STRING_LENGTH;
String = (EFI_STRING) AllocateZeroPool (StringSize);
if (String == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
Status = HiiString->GetString (
HiiString,
BestLanguage,
PackageList,
StringId,
String,
&StringSize,
&StringFontInfo
);
if (Status == EFI_BUFFER_TOO_SMALL) {
FreePool (String);
String = (EFI_STRING) AllocateZeroPool (StringSize);
if (String == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
Status = HiiString->GetString (
HiiString,
BestLanguage,
PackageList,
StringId,
String,
&StringSize,
NULL
);
}
if (EFI_ERROR (Status)) {
goto Exit;
}
//
// When StringInfo specifies that string will be output in the system default font and color,
// use particular stringfontinfo described in string package instead if exists.
// StringFontInfo equals NULL means system default font attaches with the string block.
//
if (StringFontInfo != NULL && IsSystemFontInfo (Private, (EFI_FONT_DISPLAY_INFO *) StringInfo, NULL, NULL)) {
FontLen = sizeof (EFI_FONT_DISPLAY_INFO) - sizeof (CHAR16) + StrSize (StringFontInfo->FontName);
NewStringInfo = AllocateZeroPool (FontLen);
if (NewStringInfo == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
NewStringInfo->FontInfoMask = EFI_FONT_INFO_SYS_FORE_COLOR | EFI_FONT_INFO_SYS_BACK_COLOR;
NewStringInfo->FontInfo.FontStyle = StringFontInfo->FontStyle;
NewStringInfo->FontInfo.FontSize = StringFontInfo->FontSize;
StrCpy (NewStringInfo->FontInfo.FontName, StringFontInfo->FontName);
Status = HiiStringToImage (
This,
Flags,
String,
NewStringInfo,
Blt,
BltX,
BltY,
RowInfoArray,
RowInfoArraySize,
ColumnInfoArray
);
goto Exit;
}
Status = HiiStringToImage (
This,
Flags,
String,
StringInfo,
Blt,
BltX,
BltY,
RowInfoArray,
RowInfoArraySize,
ColumnInfoArray
);
Exit:
if (SupportedLanguages != NULL) {
FreePool (SupportedLanguages);
}
if (CurrentLanguage != NULL) {
FreePool (CurrentLanguage);
}
if (BestLanguage != NULL) {
FreePool (BestLanguage);
}
if (String != NULL) {
FreePool (String);
}
if (StringFontInfo != NULL) {
FreePool (StringFontInfo);
}
if (NewStringInfo != NULL) {
FreePool (NewStringInfo);
}
return Status;
}
/**
Convert the glyph for a single character into a bitmap.
@param This A pointer to the EFI_HII_FONT_PROTOCOL instance.
@param Char Character to retrieve.
@param StringInfo Points to the string font and color information
or NULL if the string should use the default
system font and color.
@param Blt Thus must point to a NULL on entry. A buffer will
be allocated to hold the output and the pointer
updated on exit. It is the caller's
responsibility to free this buffer.
@param Baseline Number of pixels from the bottom of the bitmap to
the baseline.
@retval EFI_SUCCESS Glyph bitmap created.
@retval EFI_OUT_OF_RESOURCES Unable to allocate the output buffer Blt.
@retval EFI_WARN_UNKNOWN_GLYPH The glyph was unknown and was replaced with the
glyph for Unicode character 0xFFFD.
@retval EFI_INVALID_PARAMETER Blt is NULL or *Blt is not NULL.
**/
EFI_STATUS
EFIAPI
HiiGetGlyph (
IN CONST EFI_HII_FONT_PROTOCOL *This,
IN CHAR16 Char,
IN CONST EFI_FONT_DISPLAY_INFO *StringInfo,
OUT EFI_IMAGE_OUTPUT **Blt,
OUT UINTN *Baseline OPTIONAL
)
{
EFI_STATUS Status;
HII_DATABASE_PRIVATE_DATA *Private;
EFI_IMAGE_OUTPUT *Image;
UINT8 *GlyphBuffer;
EFI_FONT_DISPLAY_INFO *SystemDefault;
EFI_FONT_DISPLAY_INFO *StringInfoOut;
BOOLEAN Default;
EFI_FONT_HANDLE FontHandle;
EFI_STRING String;
EFI_HII_GLYPH_INFO Cell;
EFI_FONT_INFO *FontInfo;
UINT8 Attributes;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer;
UINT16 BaseLine;
if (This == NULL || Blt == NULL || *Blt != NULL) {
return EFI_INVALID_PARAMETER;
}
Private = HII_FONT_DATABASE_PRIVATE_DATA_FROM_THIS (This);
Default = FALSE;
Image = NULL;
SystemDefault = NULL;
FontHandle = NULL;
String = NULL;
GlyphBuffer = NULL;
StringInfoOut = NULL;
FontInfo = NULL;
ZeroMem (&Foreground, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
ZeroMem (&Background, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
Default = IsSystemFontInfo (Private, (EFI_FONT_DISPLAY_INFO *) StringInfo, &SystemDefault, NULL);
if (!Default) {
//
// Find out a EFI_FONT_DISPLAY_INFO which could display the character in
// the specified color and font.
//
String = (EFI_STRING) AllocateZeroPool (sizeof (CHAR16) * 2);
if (String == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
*String = Char;
*(String + 1) = 0;
Status = HiiGetFontInfo (This, &FontHandle, StringInfo, &StringInfoOut, String);
if (EFI_ERROR (Status)) {
goto Exit;
}
ASSERT (StringInfoOut != NULL);
FontInfo = &StringInfoOut->FontInfo;
Foreground = StringInfoOut->ForegroundColor;
Background = StringInfoOut->BackgroundColor;
} else {
Foreground = SystemDefault->ForegroundColor;
Background = SystemDefault->BackgroundColor;
}
Status = GetGlyphBuffer (Private, Char, FontInfo, &GlyphBuffer, &Cell, &Attributes);
if (EFI_ERROR (Status)) {
goto Exit;
}
Image = (EFI_IMAGE_OUTPUT *) AllocateZeroPool (sizeof (EFI_IMAGE_OUTPUT));
if (Image == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
Image->Width = Cell.Width;
Image->Height = Cell.Height;
if (Image->Width * Image->Height > 0) {
Image->Image.Bitmap = AllocateZeroPool (Image->Width * Image->Height * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
if (Image->Image.Bitmap == NULL) {
FreePool (Image);
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
//
// Set BaseLine to the char height.
//
BaseLine = (UINT16) (Cell.Height + Cell.OffsetY);
//
// Set BltBuffer to the position of Origin.
//
BltBuffer = Image->Image.Bitmap + (Cell.Height + Cell.OffsetY) * Image->Width - Cell.OffsetX;
GlyphToImage (
GlyphBuffer,
Foreground,
Background,
Image->Width,
BaseLine,
Cell.Width + Cell.OffsetX,
BaseLine - Cell.OffsetY,
FALSE,
&Cell,
Attributes,
&BltBuffer
);
}
*Blt = Image;
if (Baseline != NULL) {
*Baseline = Cell.OffsetY;
}
Status = EFI_SUCCESS;
Exit:
if (Status == EFI_NOT_FOUND) {
//
// Glyph is unknown and replaced with the glyph for unicode character 0xFFFD
//
if (Char != REPLACE_UNKNOWN_GLYPH) {
Status = HiiGetGlyph (This, REPLACE_UNKNOWN_GLYPH, StringInfo, Blt, Baseline);
if (!EFI_ERROR (Status)) {
Status = EFI_WARN_UNKNOWN_GLYPH;
}
} else {
Status = EFI_WARN_UNKNOWN_GLYPH;
}
}
if (SystemDefault != NULL) {
FreePool (SystemDefault);
}
if (StringInfoOut != NULL) {
FreePool (StringInfoOut);
}
if (String != NULL) {
FreePool (String);
}
if (GlyphBuffer != NULL) {
FreePool (GlyphBuffer);
}
return Status;
}
/**
This function iterates through fonts which match the specified font, using
the specified criteria. If String is non-NULL, then all of the characters in
the string must exist in order for a candidate font to be returned.
@param This A pointer to the EFI_HII_FONT_PROTOCOL instance.
@param FontHandle On entry, points to the font handle returned by a
previous call to GetFontInfo() or NULL to start
with the first font. On return, points to the
returned font handle or points to NULL if there
are no more matching fonts.
@param StringInfoIn Upon entry, points to the font to return
information about.
If NULL, then the information about the system default
font will be returned.
@param StringInfoOut Upon return, contains the matching font's
information. If NULL, then no information is
returned. It's caller's responsibility to free
this buffer.
@param String Points to the string which will be tested to
determine if all characters are available. If
NULL, then any font is acceptable.
@retval EFI_SUCCESS Matching font returned successfully.
@retval EFI_NOT_FOUND No matching font was found.
@retval EFI_INVALID_PARAMETER StringInfoIn->FontInfoMask is an invalid combination.
@retval EFI_OUT_OF_RESOURCES There were insufficient resources to complete the
request.
**/
EFI_STATUS
EFIAPI
HiiGetFontInfo (
IN CONST EFI_HII_FONT_PROTOCOL *This,
IN OUT EFI_FONT_HANDLE *FontHandle,
IN CONST EFI_FONT_DISPLAY_INFO *StringInfoIn, OPTIONAL
OUT EFI_FONT_DISPLAY_INFO **StringInfoOut,
IN CONST EFI_STRING String OPTIONAL
)
{
HII_DATABASE_PRIVATE_DATA *Private;
EFI_STATUS Status;
EFI_FONT_DISPLAY_INFO *SystemDefault;
EFI_FONT_DISPLAY_INFO InfoOut;
UINTN StringInfoOutLen;
EFI_FONT_INFO *FontInfo;
HII_GLOBAL_FONT_INFO *GlobalFont;
EFI_STRING StringIn;
EFI_FONT_HANDLE LocalFontHandle;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
FontInfo = NULL;
SystemDefault = NULL;
LocalFontHandle = NULL;
if (FontHandle != NULL) {
LocalFontHandle = *FontHandle;
}
Private = HII_FONT_DATABASE_PRIVATE_DATA_FROM_THIS (This);
//
// Already searched to the end of the whole list, return directly.
//
if (LocalFontHandle == &Private->FontInfoList) {
LocalFontHandle = NULL;
Status = EFI_NOT_FOUND;
goto Exit;
}
//
// Get default system display info, if StringInfoIn points to
// system display info, return it directly.
//
if (IsSystemFontInfo (Private, (EFI_FONT_DISPLAY_INFO *) StringInfoIn, &SystemDefault, &StringInfoOutLen)) {
//
// System font is the first node. When handle is not NULL, system font can not
// be found any more.
//
if (LocalFontHandle == NULL) {
if (StringInfoOut != NULL) {
*StringInfoOut = AllocateCopyPool (StringInfoOutLen, SystemDefault);
if (*StringInfoOut == NULL) {
Status = EFI_OUT_OF_RESOURCES;
LocalFontHandle = NULL;
goto Exit;
}
}
LocalFontHandle = Private->FontInfoList.ForwardLink;
Status = EFI_SUCCESS;
goto Exit;
} else {
LocalFontHandle = NULL;
Status = EFI_NOT_FOUND;
goto Exit;
}
}
//
// StringInfoIn must not be NULL if it is not system default font info.
//
ASSERT (StringInfoIn != NULL);
//
// Check the font information mask to make sure it is valid.
//
if (((StringInfoIn->FontInfoMask & (EFI_FONT_INFO_SYS_FONT | EFI_FONT_INFO_ANY_FONT)) ==
(EFI_FONT_INFO_SYS_FONT | EFI_FONT_INFO_ANY_FONT)) ||
((StringInfoIn->FontInfoMask & (EFI_FONT_INFO_SYS_SIZE | EFI_FONT_INFO_ANY_SIZE)) ==
(EFI_FONT_INFO_SYS_SIZE | EFI_FONT_INFO_ANY_SIZE)) ||
((StringInfoIn->FontInfoMask & (EFI_FONT_INFO_SYS_STYLE | EFI_FONT_INFO_ANY_STYLE)) ==
(EFI_FONT_INFO_SYS_STYLE | EFI_FONT_INFO_ANY_STYLE)) ||
((StringInfoIn->FontInfoMask & (EFI_FONT_INFO_RESIZE | EFI_FONT_INFO_ANY_SIZE)) ==
(EFI_FONT_INFO_RESIZE | EFI_FONT_INFO_ANY_SIZE)) ||
((StringInfoIn->FontInfoMask & (EFI_FONT_INFO_RESTYLE | EFI_FONT_INFO_ANY_STYLE)) ==
(EFI_FONT_INFO_RESTYLE | EFI_FONT_INFO_ANY_STYLE))) {
return EFI_INVALID_PARAMETER;
}
//
// Parse the font information mask to find a matching font.
//
CopyMem (&InfoOut, (EFI_FONT_DISPLAY_INFO *) StringInfoIn, sizeof (EFI_FONT_DISPLAY_INFO));
if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_FONT) == EFI_FONT_INFO_SYS_FONT) {
Status = SaveFontName (SystemDefault->FontInfo.FontName, &FontInfo);
} else {
Status = SaveFontName (((EFI_FONT_DISPLAY_INFO *) StringInfoIn)->FontInfo.FontName, &FontInfo);
}
if (EFI_ERROR (Status)) {
goto Exit;
}
if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_SIZE) == EFI_FONT_INFO_SYS_SIZE) {
InfoOut.FontInfo.FontSize = SystemDefault->FontInfo.FontSize;
}
if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_STYLE) == EFI_FONT_INFO_SYS_STYLE) {
InfoOut.FontInfo.FontStyle = SystemDefault->FontInfo.FontStyle;
}
if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_FORE_COLOR) == EFI_FONT_INFO_SYS_FORE_COLOR) {
InfoOut.ForegroundColor = SystemDefault->ForegroundColor;
}
if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_BACK_COLOR) == EFI_FONT_INFO_SYS_BACK_COLOR) {
InfoOut.BackgroundColor = SystemDefault->BackgroundColor;
}
ASSERT (FontInfo != NULL);
FontInfo->FontSize = InfoOut.FontInfo.FontSize;
FontInfo->FontStyle = InfoOut.FontInfo.FontStyle;
if (IsFontInfoExisted (Private, FontInfo, &InfoOut.FontInfoMask, LocalFontHandle, &GlobalFont)) {
//
// Test to guarantee all characters are available in the found font.
//
if (String != NULL) {
StringIn = String;
while (*StringIn != 0) {
Status = FindGlyphBlock (GlobalFont->FontPackage, *StringIn, NULL, NULL, NULL);
if (EFI_ERROR (Status)) {
LocalFontHandle = NULL;
goto Exit;
}
StringIn++;
}
}
//
// Write to output parameter
//
if (StringInfoOut != NULL) {
StringInfoOutLen = sizeof (EFI_FONT_DISPLAY_INFO) - sizeof (EFI_FONT_INFO) + GlobalFont->FontInfoSize;
*StringInfoOut = (EFI_FONT_DISPLAY_INFO *) AllocateZeroPool (StringInfoOutLen);
if (*StringInfoOut == NULL) {
Status = EFI_OUT_OF_RESOURCES;
LocalFontHandle = NULL;
goto Exit;
}
CopyMem (*StringInfoOut, &InfoOut, sizeof (EFI_FONT_DISPLAY_INFO));
CopyMem (&(*StringInfoOut)->FontInfo, GlobalFont->FontInfo, GlobalFont->FontInfoSize);
}
LocalFontHandle = GlobalFont->Entry.ForwardLink;
Status = EFI_SUCCESS;
goto Exit;
}
Status = EFI_NOT_FOUND;
Exit:
if (FontHandle != NULL) {
*FontHandle = LocalFontHandle;
}
if (SystemDefault != NULL) {
FreePool (SystemDefault);
}
if (FontInfo != NULL) {
FreePool (FontInfo);
}
return Status;
}
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