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audk/MdeModulePkg/Universal/HiiDatabaseDxe/Font.c

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/** @file
Copyright (c) 2007, 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:
Font.c
Abstract:
Implementation for EFI_HII_FONT_PROTOCOL.
Revision History
**/
#include "HiiDatabase.h"
static EFI_GRAPHICS_OUTPUT_BLT_PIXEL mEfiColors[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.
@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.
**/
STATIC
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;
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.
@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.
**/
STATIC
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.
@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.
**/
STATIC
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->OffsetY = NARROW_BASELINE;
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->OffsetY = WIDE_BASELINE;
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;
}
STATIC
VOID
NarrowGlyphToBlt (
IN UINT8 *GlyphBuffer,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,
IN UINTN ImageWidth,
IN UINTN ImageHeight,
IN BOOLEAN Transparent,
IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL **Origin
)
{
UINT8 X;
UINT8 Y;
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;
ASSERT (Width <= ImageWidth && Height <= ImageHeight);
Buffer = *Origin;
for (Y = 0; Y < Height; Y++) {
for (X = 0; X < Width; X++) {
if ((GlyphBuffer[Y] & (1 << X)) != 0) {
Buffer[Y * ImageWidth + (Width - X - 1)] = Foreground;
} else {
if (!Transparent) {
Buffer[Y * ImageWidth + (Width - X - 1)] = Background;
}
}
}
}
*Origin = Buffer + Width;
}
/**
Convert bitmap data of the glyph to blt structure.
@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 Width Width of the character or character cell, in
pixels.
@param Height Height of the character or character cell, 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 BltBuffer Points to the blt buffer.
**/
STATIC
VOID
GlyphToBlt (
IN UINT8 *GlyphBuffer,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,
IN UINTN ImageWidth,
IN UINTN ImageHeight,
IN BOOLEAN Transparent,
IN EFI_HII_GLYPH_INFO Cell,
IN UINT8 Attributes,
IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL **Origin
)
{
UINT8 X;
UINT8 Y;
UINT8 Data;
UINT8 Index;
UINTN OffsetY;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer;
ASSERT (GlyphBuffer != NULL && Origin != NULL && *Origin != NULL);
ASSERT (Cell.Width <= ImageWidth && Cell.Height <= ImageHeight);
BltBuffer = *Origin;
//
// 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 (Y = 0; Y < Cell.Height; Y++) {
OffsetY = BITMAP_LEN_1_BIT (Cell.Width, Y);
//
// All bits in these bytes are meaningful.
//
for (X = 0; X < Cell.Width / 8; X++) {
Data = *(GlyphBuffer + OffsetY + X);
for (Index = 0; Index < 8; Index++) {
if ((Data & (1 << Index)) != 0) {
BltBuffer[Y * ImageWidth + X * 8 + (8 - Index - 1)] = Foreground;
} else {
if (!Transparent) {
BltBuffer[Y * ImageWidth + X * 8 + (8 - Index - 1)] = Background;
}
}
}
}
if (Cell.Width % 8 != 0) {
//
// There are some padding bits in this byte. Ignore them.
//
Data = *(GlyphBuffer + OffsetY + X);
for (Index = 0; Index < Cell.Width % 8; Index++) {
if ((Data & (1 << (8 - Index - 1))) != 0) {
BltBuffer[Y * ImageWidth + X * 8 + Index] = Foreground;
} else {
if (!Transparent) {
BltBuffer[Y * ImageWidth + X * 8 + Index] = Background;
}
}
}
} // end of if (Width % 8...)
} // end of for (Y=0...)
*Origin = BltBuffer + Cell.Width;
}
/**
Convert bitmap data of the glyph to blt structure.
@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 Width Width of the character or character cell, in
pixels.
@param Height Height of the character or character cell, 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.
**/
STATIC
VOID
GlyphToImage (
IN UINT8 *GlyphBuffer,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,
IN UINTN ImageWidth,
IN UINTN ImageHeight,
IN BOOLEAN Transparent,
IN EFI_HII_GLYPH_INFO Cell,
IN UINT8 Attributes,
IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL **Origin
)
{
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Buffer;
ASSERT (GlyphBuffer != NULL && Origin != NULL && *Origin != NULL);
ASSERT (Cell.Width <= ImageWidth && Cell.Height <= ImageHeight);
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.Width;
GlyphToBlt (
GlyphBuffer,
Foreground,
Background,
ImageWidth,
ImageHeight,
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,
ImageHeight,
Transparent,
Origin
);
NarrowGlyphToBlt (
GlyphBuffer + EFI_GLYPH_HEIGHT,
Foreground,
Background,
ImageWidth,
ImageHeight,
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,
ImageHeight,
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,
ImageHeight,
Transparent,
Cell,
Attributes,
Origin
);
}
}
/**
Write the output parameters of FindGlyphBlock().
@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.
**/
STATIC
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 || BufferLen < 1 || InputCell == NULL) {
return EFI_INVALID_PARAMETER;
}
if (Cell != NULL) {
CopyMem (Cell, InputCell, sizeof (EFI_HII_GLYPH_INFO));
}
if (GlyphBuffer != NULL) {
*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;
ASSERT (FontPackage != NULL);
ASSERT (FontPackage->Signature == HII_FONT_PACKAGE_SIGNATURE);
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;
}
}
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;
}
}
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)
);
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);
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)) {
return EFI_SUCCESS;
}
return EFI_NOT_FOUND;
}
/**
Copy a Font Name to a new created EFI_FONT_INFO structure.
@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.
**/
STATIC
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 = mEfiColors[Private->Attribute & 0x0f];
Info->BackgroundColor = mEfiColors[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.
@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 when incoming StringInfo does not match the
default. Points to NULL if matches. It's
caller's reponsibility to free this buffer.
@param SystemInfoLen If not NULL, output the length of default system
info.
@retval TRUE Yes, it points to system default.
@retval FALSE No.
**/
STATIC
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;
ASSERT (Private != NULL && Private->Signature == HII_DATABASE_PRIVATE_DATA_SIGNATURE);
if (StringInfo == NULL && SystemInfo == NULL) {
return TRUE;
}
//
// Check whether incoming string font and color matches system default.
//
Status = GetSystemFont (Private, &SystemDefault, &DefaultLen);
ASSERT_EFI_ERROR (Status);
if (SystemInfo != NULL) {
*SystemInfo = SystemDefault;
} else {
SafeFreePool (SystemDefault);
}
if (SystemInfoLen != NULL) {
*SystemInfoLen = DefaultLen;
}
if (StringInfo == NULL ||
(StringInfo != NULL && CompareMem (SystemDefault, StringInfo, DefaultLen) == 0)) {
return TRUE;
}
return FALSE;
}
/**
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.
@param Char Unicode character
@retval 0 Yes, it is a line break.
@retval 1 Yes, it is a hyphen that desires a line break
after this character.
@retval 2 Yes, it is a dash that desires a line break
before and after it.
@retval -1 No, it is not a link break.
**/
STATIC
INT8
IsLineBreak (
IN CHAR16 Char
)
{
UINT8 Byte1;
UINT8 Byte2;
//
// In little endian, Byte1 is the low byte of Char, Byte2 is the high byte of Char.
//
Byte1 = *((UINT8 *) (&Char));
Byte2 = *(((UINT8 *) (&Char) + 1));
if (Byte2 == 0x20) {
switch (Byte1) {
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x04:
case 0x05:
case 0x06:
case 0x08:
case 0x09:
case 0x0A:
case 0x0B:
case 0x28:
case 0x29:
case 0x5F:
return 0;
case 0x10:
case 0x12:
case 0x13:
return 1;
case 0x14:
//
// BUGBUG: Does it really require line break before it and after it?
//
return 2;
}
} else if (Byte2 == 0x00) {
switch (Byte1) {
case 0x20:
case 0x0C:
case 0x0D:
return 0;
}
}
switch (Char) {
case 0x1680:
return 0;
case 0x058A:
case 0x0F0B:
case 0x1361:
case 0x17D5:
return 1;
}
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<65><72>s
responsibility to free this buffer.
@param BltX,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<65><72>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.
**/
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 BaseLineOffset;
UINT16 MaxRowNum;
UINT16 RowIndex;
UINTN Index;
UINTN Index1;
EFI_FONT_DISPLAY_INFO *StringInfoOut;
EFI_FONT_DISPLAY_INFO *SystemDefault;
EFI_FONT_HANDLE FontHandle;
EFI_STRING StringIn;
EFI_STRING StringIn2;
UINT16 Height;
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;
//
// 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_CLEAN_X)) == EFI_HII_OUT_FLAG_CLEAN_X) {
return EFI_INVALID_PARAMETER;
}
if ((Flags & (EFI_HII_OUT_FLAG_CLIP | EFI_HII_OUT_FLAG_CLEAN_Y)) == EFI_HII_OUT_FLAG_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_CLEAN_X)) == (EFI_HII_OUT_FLAG_WRAP | EFI_HII_OUT_FLAG_CLEAN_X)) {
return EFI_INVALID_PARAMETER;
}
GlyphBuf = (UINT8 **) AllocateZeroPool (MAX_STRING_LENGTH * sizeof (UINT8 *));
ASSERT (GlyphBuf != NULL);
Cell = (EFI_HII_GLYPH_INFO *) AllocateZeroPool (MAX_STRING_LENGTH * sizeof (EFI_HII_GLYPH_INFO));
ASSERT (Cell != NULL);
Attributes = (UINT8 *) AllocateZeroPool (MAX_STRING_LENGTH * sizeof (UINT8));
ASSERT (Attributes != NULL);
RowInfo = NULL;
Status = EFI_SUCCESS;
StringIn2 = NULL;
SystemDefault = 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;
Foreground = SystemDefault->ForegroundColor;
Background = SystemDefault->BackgroundColor;
} else {
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;
Foreground = ((EFI_FONT_DISPLAY_INFO *) StringInfo)->ForegroundColor;
Background = ((EFI_FONT_DISPLAY_INFO *) StringInfo)->BackgroundColor;
} else {
FontInfo = &StringInfoOut->FontInfo;
Height = StringInfoOut->FontInfo.FontSize;
Foreground = StringInfoOut->ForegroundColor;
Background = StringInfoOut->BackgroundColor;
}
}
//
// Parse the string to be displayed to drop some ignored characters.
//
StringPtr = String;
StringIn = NULL;
//
// 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;
while (*StringPtr != 0 && Index < MAX_STRING_LENGTH) {
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) {
SafeFreePool (GlyphBuf[Index]);
GlyphBuf[Index] = NULL;
StringPtr++;
} 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;
goto Exit;
}
*StringTmp++ = *StringPtr++;
Index++;
}
} else if (EFI_ERROR (Status)) {
goto Exit;
} else {
*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.
//
if (*Blt != NULL) {
Image = *Blt;
BufferPtr = Image->Image.Bitmap + Image->Width * BltY + BltX;
MaxRowNum = (UINT16) (Image->Height / Height);
if (Image->Height % Height != 0) {
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);
if ((Flags & EFI_HII_OUT_FLAG_CLEAN_Y) == EFI_HII_OUT_FLAG_CLEAN_Y) {
//
// Don't draw at all if there is only one row and
// the row's bottom-most on pixel cannot fit.
//
if (MaxRowNum == 1 && SysFontFlag) {
Status = EFI_SUCCESS;
goto Exit;
}
}
for (RowIndex = 0, Index = 0; RowIndex < MaxRowNum && StringPtr[Index] != 0; ) {
LineWidth = 0;
LineHeight = 0;
BaseLineOffset = 0;
LineBreak = FALSE;
//
// Calculate how many characters there are in a row.
//
RowInfo[RowIndex].StartIndex = Index;
while (LineWidth + BltX < Image->Width && StringPtr[Index] != 0) {
LineWidth += (UINTN) Cell[Index].AdvanceX;
if (LineHeight < Cell[Index].Height) {
LineHeight = (UINTN) Cell[Index].Height;
}
BaseLineOffset += (UINTN) Cell[Index].OffsetY;
if ((Flags & EFI_HII_IGNORE_LINE_BREAK) == 0 &&
(Flags & EFI_HII_OUT_FLAG_WRAP) == 0 &&
IsLineBreak (StringPtr[Index]) > 0) {
//
// It is a line break that ends this row.
//
Index++;
break;
}
Index++;
}
//
// If this character is the last character of a row, we need not
// draw its (AdvanceX - Width) for next character.
//
Index--;
if (!SysFontFlag) {
LineWidth -= (UINTN) (Cell[Index].AdvanceX - Cell[Index].Width);
}
//
// 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) {
if ((Flags & EFI_HII_IGNORE_LINE_BREAK) == 0) {
for (Index1 = RowInfo[RowIndex].EndIndex; Index1 >= RowInfo[RowIndex].StartIndex; Index1--) {
if (IsLineBreak (StringPtr[Index1]) > 0) {
LineBreak = TRUE;
RowInfo[RowIndex].EndIndex = Index1 - 1;
break;
}
}
}
//
// 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) {
Flags &= (~ (EFI_HII_OUT_FLAGS) EFI_HII_OUT_FLAG_WRAP);
Flags |= EFI_HII_OUT_FLAG_CLEAN_X;
}
}
//
// 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_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 > 0) {
RowInfo[RowIndex].EndIndex = Index - 1;
RowInfo[RowIndex].LineWidth = LineWidth - Cell[Index].AdvanceX;
RowInfo[RowIndex].BaselineOffset = BaseLineOffset - Cell[Index].OffsetY;
if (LineHeight > Cell[Index - 1].Height) {
LineHeight = Cell[Index - 1].Height;
}
RowInfo[RowIndex].LineHeight = LineHeight;
} else {
//
// There is only one column and it can not be drawn so that return directly.
//
Status = EFI_SUCCESS;
goto Exit;
}
}
//
// 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 && Image->Height < LineHeight) {
LineHeight = Image->Height;
if ((Flags & EFI_HII_OUT_FLAG_CLEAN_Y) == EFI_HII_OUT_FLAG_CLEAN_Y) {
//
// Don't draw at all if the row's bottom-most on pixel cannot fit.
//
break;
}
}
//
// Draw it to screen or existing bitmap depending on whether
// EFI_HII_DIRECT_TO_SCREEN is set.
//
if ((Flags & EFI_HII_DIRECT_TO_SCREEN) == EFI_HII_DIRECT_TO_SCREEN) {
BltBuffer = AllocateZeroPool (RowInfo[RowIndex].LineWidth * RowInfo[RowIndex].LineHeight * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
if (BltBuffer == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
BufferPtr = BltBuffer;
for (Index1 = RowInfo[RowIndex].StartIndex; Index1 <= RowInfo[RowIndex].EndIndex; Index1++) {
GlyphToImage (
GlyphBuf[Index1],
Foreground,
Background,
RowInfo[RowIndex].LineWidth,
RowInfo[RowIndex].LineHeight,
Transparent,
Cell[Index1],
Attributes[Index1],
&BufferPtr
);
if (ColumnInfoArray != NULL) {
if (Index1 == RowInfo[RowIndex].StartIndex) {
*ColumnInfoArray = 0;
} else {
*ColumnInfoArray = Cell[Index1 -1].AdvanceX;
}
ColumnInfoArray++;
}
}
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)) {
SafeFreePool (BltBuffer);
goto Exit;
}
SafeFreePool (BltBuffer);
} else {
for (Index1 = RowInfo[RowIndex].StartIndex; Index1 <= RowInfo[RowIndex].EndIndex; Index1++) {
GlyphToImage (
GlyphBuf[Index1],
Foreground,
Background,
Image->Width,
Image->Height,
Transparent,
Cell[Index1],
Attributes[Index1],
&BufferPtr
);
if (ColumnInfoArray != NULL) {
if (Index1 == RowInfo[RowIndex].StartIndex) {
*ColumnInfoArray = 0;
} else {
*ColumnInfoArray = Cell[Index1 -1].AdvanceX;
}
ColumnInfoArray++;
}
}
//
// Jump to next row
//
BufferPtr += BltX + Image->Width * (LineHeight - 1);
}
Index++;
RowIndex++;
}
//
// Write output parameters.
//
RowInfoSize = RowIndex * sizeof (EFI_HII_ROW_INFO);
if (RowInfoArray != NULL) {
*RowInfoArray = AllocateZeroPool (RowInfoSize);
if (*RowInfoArray == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
CopyMem (*RowInfoArray, RowInfo, RowInfoSize);
}
if (RowInfoArraySize != NULL) {
*RowInfoArraySize = RowIndex;
}
} else {
//
// 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) {
SafeFreePool (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;
Status = HiiStringToImage (
This,
Flags,
String,
StringInfo,
&Image,
BltX,
BltY,
RowInfoArray,
RowInfoArraySize,
ColumnInfoArray
);
if (EFI_ERROR (Status)) {
return Status;
}
*Blt = Image;
}
Status = EFI_SUCCESS;
Exit:
for (Index = 0; Index < MAX_STRING_LENGTH; Index++) {
SafeFreePool (GlyphBuf[Index]);
}
SafeFreePool (StringIn);
SafeFreePool (StringIn2);
SafeFreePool (StringInfoOut);
SafeFreePool (RowInfo);
SafeFreePool (SystemDefault);
SafeFreePool (GlyphBuf);
SafeFreePool (Cell);
SafeFreePool (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<6E><67>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<65><72>s
responsibility to free this buffer.
@param BltX,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<65><72>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 PackageList was NULL.
**/
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_STRING String;
UINTN StringSize;
if (This == NULL || PackageList == NULL || Blt == NULL || PackageList == NULL) {
return EFI_INVALID_PARAMETER;
}
if (!IsHiiHandleValid (PackageList)) {
return EFI_NOT_FOUND;
}
Private = HII_FONT_DATABASE_PRIVATE_DATA_FROM_THIS (This);
//
// Get the string to be displayed.
//
StringSize = MAX_STRING_LENGTH;
String = (EFI_STRING) AllocateZeroPool (StringSize);
if (String == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Status = Private->HiiString.GetString (
&Private->HiiString,
Language,
PackageList,
StringId,
String,
&StringSize,
NULL
);
if (Status == EFI_BUFFER_TOO_SMALL) {
SafeFreePool (String);
String = (EFI_STRING) AllocateZeroPool (StringSize);
if (String == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Status = Private->HiiString.GetString (
&Private->HiiString,
Language,
PackageList,
StringId,
String,
&StringSize,
NULL
);
}
if (EFI_ERROR (Status)) {
SafeFreePool (String);
return Status;
}
return HiiStringToImage (
This,
Flags,
String,
StringInfo,
Blt,
BltX,
BltY,
RowInfoArray,
RowInfoArraySize,
ColumnInfoArray
);
}
/**
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<65><72>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;
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;
}
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;
Image->Image.Bitmap = AllocateZeroPool (Image->Width * Image->Height * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
if (Image->Image.Bitmap == NULL) {
SafeFreePool (Image);
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
BltBuffer = Image->Image.Bitmap;
GlyphToImage (
GlyphBuffer,
Foreground,
Background,
Image->Width,
Image->Height,
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;
}
}
SafeFreePool (SystemDefault);
SafeFreePool (StringInfoOut);
SafeFreePool (String);
SafeFreePool (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.
@param StringInfoOut Upon return, contains the matching font<6E><74>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 is NULL.
@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,
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 || StringInfoIn == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// 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;
}
FontInfo = NULL;
LocalFontHandle = NULL;
if (FontHandle != NULL) {
LocalFontHandle = *FontHandle;
}
//
// Get default system display info, if StringInfoIn points to
// system display info, return it directly.
//
Private = HII_FONT_DATABASE_PRIVATE_DATA_FROM_THIS (This);
if (IsSystemFontInfo (Private, (EFI_FONT_DISPLAY_INFO *) StringInfoIn, &SystemDefault, &StringInfoOutLen)) {
if (StringInfoOut != NULL) {
*StringInfoOut = AllocateCopyPool (StringInfoOutLen, (EFI_FONT_DISPLAY_INFO *) StringInfoIn);
if (*StringInfoOut == NULL) {
Status = EFI_OUT_OF_RESOURCES;
LocalFontHandle = NULL;
goto Exit;
}
}
LocalFontHandle = Private->FontInfoList.ForwardLink;
Status = EFI_SUCCESS;
goto Exit;
}
//
// 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;
} else if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_STYLE) == EFI_FONT_INFO_SYS_STYLE) {
InfoOut.FontInfo.FontStyle = SystemDefault->FontInfo.FontStyle;
} else if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_FORE_COLOR) == EFI_FONT_INFO_SYS_FORE_COLOR) {
InfoOut.ForegroundColor = SystemDefault->ForegroundColor;
} else if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_BACK_COLOR) == EFI_FONT_INFO_SYS_BACK_COLOR) {
InfoOut.BackgroundColor = SystemDefault->BackgroundColor;
}
FontInfo->FontSize = InfoOut.FontInfo.FontSize;
FontInfo->FontStyle = InfoOut.FontInfo.FontStyle;
if (IsFontInfoExisted (Private, FontInfo, &InfoOut.FontInfoMask, LocalFontHandle, &GlobalFont)) {
if (String != NULL) {
//
// Test to guarantee all characters are available in the found font.
//
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;
}
} else {
LocalFontHandle = NULL;
}
Status = EFI_NOT_FOUND;
Exit:
if (FontHandle != NULL) {
*FontHandle = LocalFontHandle;
}
SafeFreePool (SystemDefault);
SafeFreePool (FontInfo);
return Status;
}
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