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Get rid of \EFI\HackBGRT\ in config.txt

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This commit is contained in:
Lauri Kenttä
2023-12-04 15:01:17 +02:00
parent 4096002eb2
commit 294da9c069
6 changed files with 42 additions and 34 deletions
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6
README.md
View File

@@ -70,14 +70,12 @@ The configuration options are described in `config.txt`, which the installer cop
## Images
The image path can be changed in the configuration file. The default path is `[EFI System Partition]\EFI\HackBGRT\splash.bmp`.
If you only need one image, just edit `splash.bmp` to your needs.
The installer copies and converts files whose `path` starts with `\EFI\HackBGRT\`. For example, to use a file named `my.jpg`, copy it in the installer folder (same folder as `setup.exe`) and set the image path in `config.txt` to `path=\EFI\HackBGFT\my.jpg`.
Advanced users may edit the `config.txt` to define multiple images, in which case one is picked at random. The installer copies and converts the images. For example, to use a file named `my.jpg`, copy it in the installer folder (same folder as `setup.exe`) and set the image path in `config.txt` to `path=my.jpg` before running the installer.
If you copy an image file to ESP manually, note that the image must be a 24-bit BMP file with a 54-byte header. That's a TrueColor BMP3 in Imagemagick, or 24-bit BMP/DIB in Microsoft Paint.
Advanced users may edit the `config.txt` to define multiple images, in which case one is picked at random.
## Recovery
If something breaks and you can't boot to Windows, you need to use the Windows installation disk (or recovery disk) to fix boot issues.

14
config.txt
View File

@@ -16,16 +16,14 @@ boot=MS
# - "keep" to keep the firmware logo. Also keeps coordinates by default.
# - "remove" to remove the BGRT. Makes x and y meaningless.
# - "black" to use only a black image. Makes x and y meaningless.
# - "path=..." to read a BMP file.
# * NOTE: For path=\EFI\HackBGRT\*, the installer will copy and convert the file if necessary.
# * NOTE: For other paths, make sure that the file is a 24-bit BMP file with a 54-byte header.
# * NOTE: The file must be on the EFI System Partition. Do not add a drive letter!
# - "path=file.bmp" to read an image file.
# * NOTE: The installer can copy and convert BMP, PNG, JPEG, GIF.
# Examples:
# - image=remove
# - image=black
# - image= x=0 y=-200 path=\EFI\HackBGRT\topimage.bmp
# - image= n=1 o=90 path=\EFI\HackBGRT\sideways.bmp
# - image= n=50 y=999999 o=keep path=\EFI\HackBGRT\probable.bmp
# - image= x=0 y=-200 path=topimage.bmp
# - image= n=1 o=90 path=sideways.bmp
# - image= n=50 y=999999 o=keep path=probable.bmp
# The above examples together would produce
# - 1/54 chance for the default OS logo
# - 1/54 chance for black screen
@@ -33,7 +31,7 @@ boot=MS
# - 1/54 chance for splash.bmp, centered, orientation set to 90 degrees
# - 50/54 chance for probable.bmp, at the bottom edge, explicitly default orientation
# Default: just one image.
image= y=-200 path=\EFI\HackBGRT\splash.bmp
image= y=-200 path=splash.bmp
# Preferred resolution. Use 0x0 for maximum and -1x-1 for original.
resolution=0x0

10
src/Setup.cs
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@@ -352,10 +352,16 @@ public class Setup {
var lines = File.ReadAllLines("config.txt");
Log($"config.txt:\n{String.Join("\n", lines)}");
foreach (var line in lines.Where(s => s.StartsWith("image="))) {
var delim = "path=\\EFI\\HackBGRT\\";
var delim = "path=";
var i = line.IndexOf(delim);
if (i > 0) {
InstallImageFile(line.Substring(i + delim.Length));
var dir = "\\EFI\\HackBGRT\\";
if (line.Substring(i + delim.Length).StartsWith(dir)) {
InstallImageFile(line.Substring(i + delim.Length + dir.Length));
}
if (!line.Substring(i + delim.Length).StartsWith("\\")) {
InstallImageFile(line.Substring(i + delim.Length));
}
}
}
var loaderDest = "loader.efi";

10
src/config.c
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@@ -1,10 +1,10 @@
#include "config.h"
#include "util.h"
BOOLEAN ReadConfigFile(struct HackBGRT_config* config, EFI_FILE_HANDLE root_dir, const CHAR16* path) {
BOOLEAN ReadConfigFile(struct HackBGRT_config* config, EFI_FILE_HANDLE base_dir, const CHAR16* path) {
void* data = 0;
UINTN data_bytes = 0;
data = LoadFileWithPadding(root_dir, path, &data_bytes, 4);
data = LoadFileWithPadding(base_dir, path, &data_bytes, 4);
if (!data) {
Log(1, L"Failed to load configuration (%s)!\n", path);
return FALSE;
@@ -61,7 +61,7 @@ BOOLEAN ReadConfigFile(struct HackBGRT_config* config, EFI_FILE_HANDLE root_dir,
str[j] = 0;
++j;
}
ReadConfigLine(config, root_dir, &str[i]);
ReadConfigLine(config, base_dir, &str[i]);
i = j;
}
// NOTICE: string is not freed, because paths are not copied.
@@ -129,7 +129,7 @@ static void ReadConfigResolution(struct HackBGRT_config* config, const CHAR16* l
}
}
void ReadConfigLine(struct HackBGRT_config* config, EFI_FILE_HANDLE root_dir, const CHAR16* line) {
void ReadConfigLine(struct HackBGRT_config* config, EFI_FILE_HANDLE base_dir, const CHAR16* line) {
line = TrimLeft(line);
if (line[0] == L'#' || line[0] == 0) {
return;
@@ -152,7 +152,7 @@ void ReadConfigLine(struct HackBGRT_config* config, EFI_FILE_HANDLE root_dir, co
return;
}
if (StrnCmp(line, L"config=", 7) == 0) {
ReadConfigFile(config, root_dir, line + 7);
ReadConfigFile(config, base_dir, line + 7);
return;
}
if (StrnCmp(line, L"resolution=", 11) == 0) {

8
src/config.h
View File

@@ -39,17 +39,17 @@ struct HackBGRT_config {
* Read a configuration parameter. (May recursively read config files.)
*
* @param config The configuration to modify.
* @param root_dir The root directory, in case the parameter contains an include.
* @param base_dir The base directory, in case the parameter contains an include.
* @param line The configuration line to parse.
*/
extern void ReadConfigLine(struct HackBGRT_config* config, EFI_FILE_HANDLE root_dir, const CHAR16* line);
extern void ReadConfigLine(struct HackBGRT_config* config, EFI_FILE_HANDLE base_dir, const CHAR16* line);
/**
* Read a configuration file. (May recursively read more files.)
*
* @param config The configuration to modify.
* @param root_dir The root directory.
* @param base_dir The base directory.
* @param path The path to the file.
* @return FALSE, if the file couldn't be read, TRUE otherwise.
*/
extern BOOLEAN ReadConfigFile(struct HackBGRT_config* config, EFI_FILE_HANDLE root_dir, const CHAR16* path);
extern BOOLEAN ReadConfigFile(struct HackBGRT_config* config, EFI_FILE_HANDLE base_dir, const CHAR16* path);

28
src/main.c
View File

@@ -239,17 +239,17 @@ static BMP* MakeBMP(int w, int h, UINT8 r, UINT8 g, UINT8 b) {
/**
* Load a bitmap or generate a black one.
*
* @param root_dir The root directory for loading a BMP.
* @param path The BMP path within the root directory; NULL for a black BMP.
* @param base_dir The directory for loading a BMP.
* @param path The BMP path within the directory; NULL for a black BMP.
* @return The loaded BMP, or 0 if not available.
*/
static BMP* LoadBMP(EFI_FILE_HANDLE root_dir, const CHAR16* path) {
static BMP* LoadBMP(EFI_FILE_HANDLE base_dir, const CHAR16* path) {
if (!path) {
return MakeBMP(1, 1, 0, 0, 0); // empty path = black image
}
Log(config.debug, L"Loading %s.\n", path);
UINTN size = 0;
BMP* bmp = LoadFile(root_dir, path, &size);
BMP* bmp = LoadFile(base_dir, path, &size);
if (bmp) {
if (size >= bmp->file_size
&& CompareMem(bmp, "BM", 2) == 0
@@ -299,9 +299,9 @@ static void CropBMP(BMP* bmp, int w, int h) {
/**
* The main logic for BGRT modification.
*
* @param root_dir The root directory for loading a BMP.
* @param base_dir The directory for loading a BMP.
*/
void HackBgrt(EFI_FILE_HANDLE root_dir) {
void HackBgrt(EFI_FILE_HANDLE base_dir) {
// REMOVE: simply delete all BGRT entries.
if (config.action == HackBGRT_REMOVE) {
HandleAcpiTables(config.action, 0);
@@ -352,7 +352,7 @@ void HackBgrt(EFI_FILE_HANDLE root_dir) {
// Get the image (either old or new).
BMP* new_bmp = old_bmp;
if (config.action == HackBGRT_REPLACE) {
new_bmp = LoadBMP(root_dir, config.image_path);
new_bmp = LoadBMP(base_dir, config.image_path);
}
// No image = no need for BGRT.
@@ -435,10 +435,16 @@ EFI_STATUS EFIAPI efi_main(EFI_HANDLE image_handle, EFI_SYSTEM_TABLE *ST_) {
goto fail;
}
EFI_FILE_HANDLE base_dir;
if (EFI_ERROR(root_dir->Open(root_dir, &base_dir, L"\\EFI\\HackBGRT", EFI_FILE_MODE_READ, 0))) {
Log(config.debug, L"Failed to HackBGRT directory.\n");
base_dir = root_dir;
}
EFI_SHELL_PARAMETERS_PROTOCOL *shell_param_proto = NULL;
if (EFI_ERROR(BS->OpenProtocol(image_handle, TmpGuidPtr((EFI_GUID) EFI_SHELL_PARAMETERS_PROTOCOL_GUID), (void**) &shell_param_proto, 0, 0, EFI_OPEN_PROTOCOL_GET_PROTOCOL)) || shell_param_proto->Argc <= 1) {
const CHAR16* config_path = L"\\EFI\\HackBGRT\\config.txt";
if (!ReadConfigFile(&config, root_dir, config_path)) {
const CHAR16* config_path = L"config.txt";
if (!ReadConfigFile(&config, base_dir, config_path)) {
Log(1, L"No config, no command line!\n", config_path);
goto fail;
}
@@ -446,7 +452,7 @@ EFI_STATUS EFIAPI efi_main(EFI_HANDLE image_handle, EFI_SYSTEM_TABLE *ST_) {
CHAR16 **argv = shell_param_proto->Argv;
int argc = shell_param_proto->Argc;
for (int i = 1; i < argc; ++i) {
ReadConfigLine(&config, root_dir, argv[i]);
ReadConfigLine(&config, base_dir, argv[i]);
}
}
@@ -455,7 +461,7 @@ EFI_STATUS EFIAPI efi_main(EFI_HANDLE image_handle, EFI_SYSTEM_TABLE *ST_) {
}
SetResolution(config.resolution_x, config.resolution_y);
HackBgrt(root_dir);
HackBgrt(base_dir);
EFI_HANDLE next_image_handle = 0;
static CHAR16 backup_boot_path[] = L"\\EFI\\HackBGRT\\bootmgfw-original.efi";