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+/** @file
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+ The file provides services to retrieve font information.
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+
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+Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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+This program and the accompanying materials are licensed and made available under
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+the terms and conditions of the BSD License that accompanies this distribution.
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+The full text of the license may be found at
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+http://opensource.org/licenses/bsd-license.php.
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+
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+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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+
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+**/
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+
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+#ifndef __HII_FONT_H__
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+#define __HII_FONT_H__
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+
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+FILE_LICENCE ( BSD3 );
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+
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+#include <ipxe/efi/Protocol/GraphicsOutput.h>
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+#include <ipxe/efi/Protocol/HiiImage.h>
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+
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+#define EFI_HII_FONT_PROTOCOL_GUID \
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+{ 0xe9ca4775, 0x8657, 0x47fc, { 0x97, 0xe7, 0x7e, 0xd6, 0x5a, 0x8, 0x43, 0x24 } }
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+
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+typedef struct _EFI_HII_FONT_PROTOCOL EFI_HII_FONT_PROTOCOL;
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+
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+typedef VOID *EFI_FONT_HANDLE;
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+
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+///
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+/// EFI_HII_OUT_FLAGS.
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+///
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+typedef UINT32 EFI_HII_OUT_FLAGS;
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+
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+#define EFI_HII_OUT_FLAG_CLIP 0x00000001
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+#define EFI_HII_OUT_FLAG_WRAP 0x00000002
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+#define EFI_HII_OUT_FLAG_CLIP_CLEAN_Y 0x00000004
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+#define EFI_HII_OUT_FLAG_CLIP_CLEAN_X 0x00000008
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+#define EFI_HII_OUT_FLAG_TRANSPARENT 0x00000010
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+#define EFI_HII_IGNORE_IF_NO_GLYPH 0x00000020
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+#define EFI_HII_IGNORE_LINE_BREAK 0x00000040
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+#define EFI_HII_DIRECT_TO_SCREEN 0x00000080
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+
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+/**
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+ Definition of EFI_HII_ROW_INFO.
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+**/
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+typedef struct _EFI_HII_ROW_INFO {
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+ ///
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+ /// The index of the first character in the string which is displayed on the line.
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+ ///
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+ UINTN StartIndex;
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+ ///
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+ /// The index of the last character in the string which is displayed on the line.
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+ /// If this is the same as StartIndex, then no characters are displayed.
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+ ///
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+ UINTN EndIndex;
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+ UINTN LineHeight; ///< The height of the line, in pixels.
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+ UINTN LineWidth; ///< The width of the text on the line, in pixels.
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+
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+ ///
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+ /// The font baseline offset in pixels from the bottom of the row, or 0 if none.
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+ ///
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+ UINTN BaselineOffset;
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+} EFI_HII_ROW_INFO;
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+
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+///
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+/// Font info flag. All flags (FONT, SIZE, STYLE, and COLOR) are defined.
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+/// They are defined as EFI_FONT_INFO_***
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+///
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+typedef UINT32 EFI_FONT_INFO_MASK;
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+
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+#define EFI_FONT_INFO_SYS_FONT 0x00000001
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+#define EFI_FONT_INFO_SYS_SIZE 0x00000002
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+#define EFI_FONT_INFO_SYS_STYLE 0x00000004
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+#define EFI_FONT_INFO_SYS_FORE_COLOR 0x00000010
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+#define EFI_FONT_INFO_SYS_BACK_COLOR 0x00000020
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+#define EFI_FONT_INFO_RESIZE 0x00001000
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+#define EFI_FONT_INFO_RESTYLE 0x00002000
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+#define EFI_FONT_INFO_ANY_FONT 0x00010000
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+#define EFI_FONT_INFO_ANY_SIZE 0x00020000
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+#define EFI_FONT_INFO_ANY_STYLE 0x00040000
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+
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+//
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+// EFI_FONT_INFO
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+//
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+typedef struct {
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+ EFI_HII_FONT_STYLE FontStyle;
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+ UINT16 FontSize; ///< character cell height in pixels
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+ CHAR16 FontName[1];
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+} EFI_FONT_INFO;
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+
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+/**
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+ Describes font output-related information.
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+
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+ This structure is used for describing the way in which a string
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+ should be rendered in a particular font. FontInfo specifies the
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+ basic font information and ForegroundColor and BackgroundColor
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+ specify the color in which they should be displayed. The flags
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+ in FontInfoMask describe where the system default should be
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+ supplied instead of the specified information. The flags also
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+ describe what options can be used to make a match between the
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+ font requested and the font available.
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+**/
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+typedef struct _EFI_FONT_DISPLAY_INFO {
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+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL ForegroundColor;
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+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL BackgroundColor;
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+ EFI_FONT_INFO_MASK FontInfoMask;
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+ EFI_FONT_INFO FontInfo;
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+} EFI_FONT_DISPLAY_INFO;
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+
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+/**
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+
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+ This function renders a string to a bitmap or the screen using
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+ the specified font, color and options. It either draws the
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+ string and glyphs on an existing bitmap, allocates a new bitmap,
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+ or uses the screen. The strings can be clipped or wrapped.
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+ Optionally, the function also returns the information about each
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+ row and the character position on that row. If
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+ EFI_HII_OUT_FLAG_CLIP is set, then text will be formatted only
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+ based on explicit line breaks and all pixels which would lie
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+ outside the bounding box specified by Width and Height are
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+ ignored. The information in the RowInfoArray only describes
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+ characters which are at least partially displayed. For the final
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+ row, the LineHeight and BaseLine may describe pixels that are
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+ outside the limit specified by Height (unless
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+ EFI_HII_OUT_FLAG_CLIP_CLEAN_Y is specified) even though those
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+ pixels were not drawn. The LineWidth may describe pixels which
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+ are outside the limit specified by Width (unless
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+ EFI_HII_OUT_FLAG_CLIP_CLEAN_X is specified) even though those
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+ pixels were not drawn. If EFI_HII_OUT_FLAG_CLIP_CLEAN_X is set,
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+ then it modifies the behavior of EFI_HII_OUT_FLAG_CLIP so that
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+ if a character's right-most on pixel cannot fit, then it will
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+ not be drawn at all. This flag requires that
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+ EFI_HII_OUT_FLAG_CLIP be set. If EFI_HII_OUT_FLAG_CLIP_CLEAN_Y
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+ is set, then it modifies the behavior of EFI_HII_OUT_FLAG_CLIP
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+ so that if a row's bottom-most pixel cannot fit, then it will
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+ not be drawn at all. This flag requires that
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+ EFI_HII_OUT_FLAG_CLIP be set. If EFI_HII_OUT_FLAG_WRAP is set,
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+ then text will be wrapped at the right-most line-break
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+ opportunity prior to a character whose right-most extent would
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+ exceed Width. If no line-break opportunity can be found, then
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+ the text will behave as if EFI_HII_OUT_FLAG_CLIP_CLEAN_X is set.
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+ This flag cannot be used with EFI_HII_OUT_FLAG_CLIP_CLEAN_X. If
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+ EFI_HII_OUT_FLAG_TRANSPARENT is set, then BackgroundColor is
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+ ignored and all 'off' pixels in the character's drawn
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+ will use the pixel value from Blt. This flag cannot be used if
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+ Blt is NULL upon entry. If EFI_HII_IGNORE_IF_NO_GLYPH is set,
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+ then characters which have no glyphs are not drawn. Otherwise,
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+ they are replaced with Unicode character code 0xFFFD (REPLACEMENT
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+ CHARACTER). If EFI_HII_IGNORE_LINE_BREAK is set, then explicit
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+ line break characters will be ignored. If
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+ EFI_HII_DIRECT_TO_SCREEN is set, then the string will be written
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+ directly to the output device specified by Screen. Otherwise the
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+ string will be rendered to the bitmap specified by Bitmap.
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+
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+ @param This A pointer to the EFI_HII_FONT_PROTOCOL instance.
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+
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+ @param Flags Describes how the string is to be drawn.
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+
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+ @param String Points to the null-terminated string to be
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+
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+ @param StringInfo Points to the string output information,
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+ including the color and font. If NULL, then
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+ the string will be output in the default
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+ system font and color.
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+
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+ @param Blt If this points to a non-NULL on entry, this points
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+ to the image, which is Width pixels wide and
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+ Height pixels high. The string will be drawn onto
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+ this image and EFI_HII_OUT_FLAG_CLIP is implied.
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+ If this points to a NULL on entry, then a buffer
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+ will be allocated to hold the generated image and
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+ the pointer updated on exit. It is the caller's
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+ responsibility to free this buffer.
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+
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+ @param BltX, BltY Specifies the offset from the left and top
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+ edge of the image of the first character
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+ cell in the image.
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+
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+ @param RowInfoArray If this is non-NULL on entry, then on
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+ exit, this will point to an allocated buffer
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+ containing row information and
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+ RowInfoArraySize will be updated to contain
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+ the number of elements. This array describes
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+ the characters that were at least partially
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+ drawn and the heights of the rows. It is the
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+ caller's responsibility to free this buffer.
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+
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+ @param RowInfoArraySize If this is non-NULL on entry, then on
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+ exit it contains the number of
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+ elements in RowInfoArray.
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+
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+ @param ColumnInfoArray If this is non-NULL, then on return it
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+ will be filled with the horizontal
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+ offset for each character in the
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+ string on the row where it is
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+ displayed. Non-printing characters
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+ will have the offset ~0. The caller is
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+ responsible for allocating a buffer large
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+ enough so that there is one entry for
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+ each character in the string, not
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+ including the null-terminator. It is
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+ possible when character display is
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+ normalized that some character cells
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+ overlap.
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+
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+ @retval EFI_SUCCESS The string was successfully updated.
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+
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+ @retval EFI_OUT_OF_RESOURCES Unable to allocate an output buffer for RowInfoArray or Blt.
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+
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+ @retval EFI_INVALID_PARAMETER The String or Blt was NULL.
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+
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+ @retval EFI_INVALID_PARAMETER Flags were invalid combination.
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+**/
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+typedef
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+EFI_STATUS
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+(EFIAPI *EFI_HII_STRING_TO_IMAGE)(
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+ IN CONST EFI_HII_FONT_PROTOCOL *This,
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+ IN EFI_HII_OUT_FLAGS Flags,
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+ IN CONST EFI_STRING String,
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+ IN CONST EFI_FONT_DISPLAY_INFO *StringInfo,
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+ IN OUT EFI_IMAGE_OUTPUT **Blt,
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+ IN UINTN BltX,
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+ IN UINTN BltY,
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+ OUT EFI_HII_ROW_INFO **RowInfoArray OPTIONAL,
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+ OUT UINTN *RowInfoArraySize OPTIONAL,
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+ OUT UINTN *ColumnInfoArray OPTIONAL
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+);
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+
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+
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+
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+/**
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+
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+ This function renders a string as a bitmap or to the screen
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+ and can clip or wrap the string. The bitmap is either supplied
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+ by the caller or allocated by the function. The
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+ strings are drawn with the font, size and style specified and
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+ can be drawn transparently or opaquely. The function can also
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+ return information about each row and each character's
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+ position on the row. If EFI_HII_OUT_FLAG_CLIP is set, then
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+ text will be formatted based only on explicit line breaks, and
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+ all pixels that would lie outside the bounding box specified
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+ by Width and Height are ignored. The information in the
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+ RowInfoArray only describes characters which are at least
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+ partially displayed. For the final row, the LineHeight and
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+ BaseLine may describe pixels which are outside the limit
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+ specified by Height (unless EFI_HII_OUT_FLAG_CLIP_CLEAN_Y is
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+ specified) even though those pixels were not drawn. If
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+ EFI_HII_OUT_FLAG_CLIP_CLEAN_X is set, then it modifies the
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+ behavior of EFI_HII_OUT_FLAG_CLIP so that if a character's
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+ right-most on pixel cannot fit, then it will not be drawn at
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+ all. This flag requires that EFI_HII_OUT_FLAG_CLIP be set. If
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+ EFI_HII_OUT_FLAG_CLIP_CLEAN_Y is set, then it modifies the
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+ behavior of EFI_HII_OUT_FLAG_CLIP so that if a row's bottom
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+ most pixel cannot fit, then it will not be drawn at all. This
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+ flag requires that EFI_HII_OUT_FLAG_CLIP be set. If
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+ EFI_HII_OUT_FLAG_WRAP is set, then text will be wrapped at the
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+ right-most line-break opportunity prior to a character whose
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+ right-most extent would exceed Width. If no line-break
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+ opportunity can be found, then the text will behave as if
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+ EFI_HII_OUT_FLAG_CLIP_CLEAN_X is set. This flag cannot be used
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+ with EFI_HII_OUT_FLAG_CLIP_CLEAN_X. If
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+ EFI_HII_OUT_FLAG_TRANSPARENT is set, then BackgroundColor is
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+ ignored and all off" pixels in the character's glyph will
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+ use the pixel value from Blt. This flag cannot be used if Blt
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+ is NULL upon entry. If EFI_HII_IGNORE_IF_NO_GLYPH is set, then
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+ characters which have no glyphs are not drawn. Otherwise, they
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+ are replaced with Unicode character code 0xFFFD (REPLACEMENT
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+ CHARACTER). If EFI_HII_IGNORE_LINE_BREAK is set, then explicit
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+ line break characters will be ignored. If
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+ EFI_HII_DIRECT_TO_SCREEN is set, then the string will be
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+ written directly to the output device specified by Screen.
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+ Otherwise the string will be rendered to the bitmap specified
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+ by Bitmap.
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+
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+
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+ @param This A pointer to the EFI_HII_FONT_PROTOCOL instance.
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+
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+ @param Flags Describes how the string is to be drawn.
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+
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+ @param PackageList
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+ The package list in the HII database to
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+ search for the specified string.
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+
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+ @param StringId The string's id, which is unique within
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+ PackageList.
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+
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+ @param Language Points to the language for the retrieved
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+ string. If NULL, then the current system
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+ language is used.
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+
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+ @param StringInfo Points to the string output information,
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+ including the color and font. If NULL, then
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+ the string will be output in the default
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+ system font and color.
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+
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+ @param Blt If this points to a non-NULL on entry, this points
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+ to the image, which is Width pixels wide and
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+ Height pixels high. The string will be drawn onto
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+ this image and EFI_HII_OUT_FLAG_CLIP is implied.
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+ If this points to a NULL on entry, then a buffer
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+ will be allocated to hold the generated image and
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+ the pointer updated on exit. It is the caller's
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+ responsibility to free this buffer.
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+
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+ @param BltX, BltY Specifies the offset from the left and top
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+ edge of the output image of the first
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+ character cell in the image.
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+
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+ @param RowInfoArray If this is non-NULL on entry, then on
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+ exit, this will point to an allocated
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+ buffer containing row information and
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+ RowInfoArraySize will be updated to
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+ contain the number of elements. This array
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+ describes the characters which were at
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+ least partially drawn and the heights of
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+ the rows. It is the caller's
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+ responsibility to free this buffer.
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+
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+ @param RowInfoArraySize If this is non-NULL on entry, then on
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+ exit it contains the number of
|
|
322
|
+ elements in RowInfoArray.
|
|
323
|
+
|
|
324
|
+ @param ColumnInfoArray If non-NULL, on return it is filled
|
|
325
|
+ with the horizontal offset for each
|
|
326
|
+ character in the string on the row
|
|
327
|
+ where it is displayed. Non-printing
|
|
328
|
+ characters will have the offset ~0.
|
|
329
|
+ The caller is responsible to allocate
|
|
330
|
+ a buffer large enough so that there is
|
|
331
|
+ one entry for each character in the
|
|
332
|
+ string, not including the
|
|
333
|
+ null-terminator. It is possible when
|
|
334
|
+ character display is normalized that
|
|
335
|
+ some character cells overlap.
|
|
336
|
+
|
|
337
|
+
|
|
338
|
+ @retval EFI_SUCCESS The string was successfully updated.
|
|
339
|
+
|
|
340
|
+ @retval EFI_OUT_OF_RESOURCES Unable to allocate an output
|
|
341
|
+ buffer for RowInfoArray or Blt.
|
|
342
|
+
|
|
343
|
+ @retval EFI_INVALID_PARAMETER The String, or Blt, or Height, or
|
|
344
|
+ Width was NULL.
|
|
345
|
+ @retval EFI_INVALID_PARAMETER The Blt or PackageList was NULL.
|
|
346
|
+ @retval EFI_INVALID_PARAMETER Flags were invalid combination.
|
|
347
|
+ @retval EFI_NOT_FOUND The specified PackageList is not in the Database,
|
|
348
|
+ or the stringid is not in the specified PackageList.
|
|
349
|
+
|
|
350
|
+**/
|
|
351
|
+typedef
|
|
352
|
+EFI_STATUS
|
|
353
|
+(EFIAPI *EFI_HII_STRING_ID_TO_IMAGE)(
|
|
354
|
+ IN CONST EFI_HII_FONT_PROTOCOL *This,
|
|
355
|
+ IN EFI_HII_OUT_FLAGS Flags,
|
|
356
|
+ IN EFI_HII_HANDLE PackageList,
|
|
357
|
+ IN EFI_STRING_ID StringId,
|
|
358
|
+ IN CONST CHAR8 *Language,
|
|
359
|
+ IN CONST EFI_FONT_DISPLAY_INFO *StringInfo OPTIONAL,
|
|
360
|
+ IN OUT EFI_IMAGE_OUTPUT **Blt,
|
|
361
|
+ IN UINTN BltX,
|
|
362
|
+ IN UINTN BltY,
|
|
363
|
+ OUT EFI_HII_ROW_INFO **RowInfoArray OPTIONAL,
|
|
364
|
+ OUT UINTN *RowInfoArraySize OPTIONAL,
|
|
365
|
+ OUT UINTN *ColumnInfoArray OPTIONAL
|
|
366
|
+);
|
|
367
|
+
|
|
368
|
+
|
|
369
|
+/**
|
|
370
|
+
|
|
371
|
+ Convert the glyph for a single character into a bitmap.
|
|
372
|
+
|
|
373
|
+ @param This A pointer to the EFI_HII_FONT_PROTOCOL instance.
|
|
374
|
+
|
|
375
|
+ @param Char The character to retrieve.
|
|
376
|
+
|
|
377
|
+ @param StringInfo Points to the string font and color
|
|
378
|
+ information or NULL if the string should use
|
|
379
|
+ the default system font and color.
|
|
380
|
+
|
|
381
|
+ @param Blt This must point to a NULL on entry. A buffer will
|
|
382
|
+ be allocated to hold the output and the pointer
|
|
383
|
+ updated on exit. It is the caller's responsibility
|
|
384
|
+ to free this buffer.
|
|
385
|
+
|
|
386
|
+ @param Baseline The number of pixels from the bottom of the bitmap
|
|
387
|
+ to the baseline.
|
|
388
|
+
|
|
389
|
+
|
|
390
|
+ @retval EFI_SUCCESS The glyph bitmap created.
|
|
391
|
+
|
|
392
|
+ @retval EFI_OUT_OF_RESOURCES Unable to allocate the output buffer Blt.
|
|
393
|
+
|
|
394
|
+ @retval EFI_WARN_UNKNOWN_GLYPH The glyph was unknown and was
|
|
395
|
+ replaced with the glyph for
|
|
396
|
+ Unicode character code 0xFFFD.
|
|
397
|
+
|
|
398
|
+ @retval EFI_INVALID_PARAMETER Blt is NULL, or Width is NULL, or
|
|
399
|
+ Height is NULL
|
|
400
|
+
|
|
401
|
+
|
|
402
|
+**/
|
|
403
|
+typedef
|
|
404
|
+EFI_STATUS
|
|
405
|
+(EFIAPI *EFI_HII_GET_GLYPH)(
|
|
406
|
+ IN CONST EFI_HII_FONT_PROTOCOL *This,
|
|
407
|
+ IN CONST CHAR16 Char,
|
|
408
|
+ IN CONST EFI_FONT_DISPLAY_INFO *StringInfo,
|
|
409
|
+ OUT EFI_IMAGE_OUTPUT **Blt,
|
|
410
|
+ OUT UINTN *Baseline OPTIONAL
|
|
411
|
+);
|
|
412
|
+
|
|
413
|
+/**
|
|
414
|
+
|
|
415
|
+ This function iterates through fonts which match the specified
|
|
416
|
+ font, using the specified criteria. If String is non-NULL, then
|
|
417
|
+ all of the characters in the string must exist in order for a
|
|
418
|
+ candidate font to be returned.
|
|
419
|
+
|
|
420
|
+ @param This A pointer to the EFI_HII_FONT_PROTOCOL instance.
|
|
421
|
+
|
|
422
|
+ @param FontHandle On entry, points to the font handle returned
|
|
423
|
+ by a previous call to GetFontInfo() or NULL
|
|
424
|
+ to start with the first font. On return,
|
|
425
|
+ points to the returned font handle or points
|
|
426
|
+ to NULL if there are no more matching fonts.
|
|
427
|
+
|
|
428
|
+ @param StringInfoIn Upon entry, points to the font to return
|
|
429
|
+ information about. If NULL, then the information
|
|
430
|
+ about the system default font will be returned.
|
|
431
|
+
|
|
432
|
+ @param StringInfoOut Upon return, contains the matching font's information.
|
|
433
|
+ If NULL, then no information is returned. This buffer
|
|
434
|
+ is allocated with a call to the Boot Service AllocatePool().
|
|
435
|
+ It is the caller's responsibility to call the Boot
|
|
436
|
+ Service FreePool() when the caller no longer requires
|
|
437
|
+ the contents of StringInfoOut.
|
|
438
|
+
|
|
439
|
+ @param String Points to the string which will be tested to
|
|
440
|
+ determine if all characters are available. If
|
|
441
|
+ NULL, then any font is acceptable.
|
|
442
|
+
|
|
443
|
+ @retval EFI_SUCCESS Matching font returned successfully.
|
|
444
|
+
|
|
445
|
+ @retval EFI_NOT_FOUND No matching font was found.
|
|
446
|
+
|
|
447
|
+ @retval EFI_OUT_OF_RESOURCES There were insufficient resources to complete the request.
|
|
448
|
+
|
|
449
|
+**/
|
|
450
|
+typedef
|
|
451
|
+EFI_STATUS
|
|
452
|
+(EFIAPI *EFI_HII_GET_FONT_INFO)(
|
|
453
|
+ IN CONST EFI_HII_FONT_PROTOCOL *This,
|
|
454
|
+ IN OUT EFI_FONT_HANDLE *FontHandle,
|
|
455
|
+ IN CONST EFI_FONT_DISPLAY_INFO *StringInfoIn, OPTIONAL
|
|
456
|
+ OUT EFI_FONT_DISPLAY_INFO **StringInfoOut,
|
|
457
|
+ IN CONST EFI_STRING String OPTIONAL
|
|
458
|
+);
|
|
459
|
+
|
|
460
|
+///
|
|
461
|
+/// The protocol provides the service to retrieve the font informations.
|
|
462
|
+///
|
|
463
|
+struct _EFI_HII_FONT_PROTOCOL {
|
|
464
|
+ EFI_HII_STRING_TO_IMAGE StringToImage;
|
|
465
|
+ EFI_HII_STRING_ID_TO_IMAGE StringIdToImage;
|
|
466
|
+ EFI_HII_GET_GLYPH GetGlyph;
|
|
467
|
+ EFI_HII_GET_FONT_INFO GetFontInfo;
|
|
468
|
+};
|
|
469
|
+
|
|
470
|
+extern EFI_GUID gEfiHiiFontProtocolGuid;
|
|
471
|
+
|
|
472
|
+
|
|
473
|
+#endif
|
|
474
|
+
|