mirror of
https://github.com/fastfetch-cli/fastfetch.git
synced 2026-11-06 21:24:43 +01:00
李通洲
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
#include "fastfetch.h"
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// https://uefi.org/specs/UEFI/2.10/10_Protocols_Device_Path_Protocol.html#generic-device-path-structures
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typedef struct ffEfiDevicePathProtocol
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{
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uint8_t Type;
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uint8_t SubType;
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uint16_t Length;
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uint8_t SpecificDevicePathData[];
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} ffEfiDevicePathProtocol;
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// https://uefi.org/specs/UEFI/2.10/03_Boot_Manager.html#load-options
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typedef struct FFEfiLoadOption
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{
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uint32_t Attributes;
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uint16_t FilePathListLength;
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uint16_t Description[];
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// ffEfiDevicePathProtocol FilePathList[];
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// uint8_t OptionalData[];
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} FFEfiLoadOption;
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uint8_t ffEvBits(uint16_t val, uint8_t mask, uint8_t shift)
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{
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return (uint8_t) ((val & (mask << shift)) >> shift);
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}
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static void ffUcs2ToUtf8(const uint16_t *const chars, FFstrbuf* result)
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{
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for (uint32_t i = 0; chars[i]; i++)
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{
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if (chars[i] <= 0x007f)
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ffStrbufAppendC(result, (char) chars[i]);
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else if (chars[i] > 0x007f && chars[i] <= 0x07ff)
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{
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ffStrbufAppendC(result, (char) (0xc0 | ffEvBits(chars[i], 0x1f, 6)));
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ffStrbufAppendC(result, (char) (0x80 | ffEvBits(chars[i], 0x3f, 0)));
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}
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else
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{
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ffStrbufAppendC(result, (char) (0xe0 | ffEvBits(chars[i], 0xf, 12)));
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ffStrbufAppendC(result, (char) (0x80 | ffEvBits(chars[i], 0x3f, 6)));
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ffStrbufAppendC(result, (char) (0x80 | ffEvBits(chars[i], 0x3f, 0)));
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}
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}
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}
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#define FF_EFI_GLOBAL_GUID "8be4df61-93ca-11d2-aa0d-00e098032b8c"
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