diff options
| author | Rob Clark <robdclark@gmail.com> | 2017-10-10 08:23:01 -0400 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2017-10-12 17:24:25 +0200 |
| commit | 2d5dc2a52d412964031c9920d354ad5bdc91c654 (patch) | |
| tree | d1d7bb7121e191a74b245fba924410a17e9e4510 /lib | |
| parent | bf19273e81eb5e23c9bc14c3881f92a120565561 (diff) | |
efi_loader: console support for color attributes
Shell.efi uses this, and supporting color attributes makes things look
nicer. Map the EFI fg/bg color attributes to ANSI escape sequences.
Not all colors have a perfect match, but spec just says "Devices
supporting a different number of text colors are required to emulate the
above colors to the best of the device’s capabilities".
Signed-off-by: Rob Clark <robdclark@gmail.com>
Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
[agraf: s/unsigned/unsigned int/]
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/efi_loader/efi_console.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c index 1bdf36b4ae7..01732aafead 100644 --- a/lib/efi_loader/efi_console.c +++ b/lib/efi_loader/efi_console.c @@ -307,14 +307,37 @@ static efi_status_t EFIAPI efi_cout_set_mode( return EFI_EXIT(EFI_SUCCESS); } +static const struct { + unsigned int fg; + unsigned int bg; +} color[] = { + { 30, 40 }, /* 0: black */ + { 34, 44 }, /* 1: blue */ + { 32, 42 }, /* 2: green */ + { 36, 46 }, /* 3: cyan */ + { 31, 41 }, /* 4: red */ + { 35, 45 }, /* 5: magenta */ + { 33, 43 }, /* 6: brown, map to yellow as edk2 does*/ + { 37, 47 }, /* 7: light grey, map to white */ +}; + +/* See EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.SetAttribute(). */ static efi_status_t EFIAPI efi_cout_set_attribute( struct efi_simple_text_output_protocol *this, unsigned long attribute) { + unsigned int bold = EFI_ATTR_BOLD(attribute); + unsigned int fg = EFI_ATTR_FG(attribute); + unsigned int bg = EFI_ATTR_BG(attribute); + EFI_ENTRY("%p, %lx", this, attribute); - /* Just ignore attributes (colors) for now */ - return EFI_EXIT(EFI_UNSUPPORTED); + if (attribute) + printf(ESC"[%u;%u;%um", bold, color[fg].fg, color[bg].bg); + else + printf(ESC"[0;37;40m"); + + return EFI_EXIT(EFI_SUCCESS); } static efi_status_t EFIAPI efi_cout_clear_screen( |