diff options
author | Tom Gundersen <teg@jklm.no> | 2015-02-17 20:12:50 +0100 |
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committer | Tom Gundersen <teg@jklm.no> | 2015-02-18 15:23:23 +0100 |
commit | e7dd673d1e0acfe5420599588c559fd85a3a9e8f (patch) | |
tree | ecfef02be389745e295322e6a81df481869636c7 /src/sd-boot/graphics.c | |
parent | 8d4efa540a88b19a475452d8ccc3c9824849fa86 (diff) |
gummiboot/sd-boot/systemd-boot: rename galore
What used to be gummiboot, was renamed sd-boot when it was merged into
systemd. Let's try to be a bit more consistent with the rest of systemd
and rename it again as follows:
The EFI bootloader is now called 'systemd-bootx64.efi', and its sources are in
'src/boot/efi/'. The drop-in directory where bootctl will find EFI loaders
is now /usr/lib/systemd/boot/efi/.
Diffstat (limited to 'src/sd-boot/graphics.c')
-rw-r--r-- | src/sd-boot/graphics.c | 389 |
1 files changed, 0 insertions, 389 deletions
diff --git a/src/sd-boot/graphics.c b/src/sd-boot/graphics.c deleted file mode 100644 index 11305b8d06..0000000000 --- a/src/sd-boot/graphics.c +++ /dev/null @@ -1,389 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/* - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU Lesser General Public License as published by - * the Free Software Foundation; either version 2.1 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * Copyright (C) 2012-2013 Kay Sievers <kay@vrfy.org> - * Copyright (C) 2012 Harald Hoyer <harald@redhat.com> - * Copyright (C) 2013 Intel Corporation - * Authored by Joonas Lahtinen <joonas.lahtinen@linux.intel.com> - */ - -#include <efi.h> -#include <efilib.h> - -#include "util.h" -#include "graphics.h" - -EFI_STATUS graphics_mode(BOOLEAN on) { - #define EFI_CONSOLE_CONTROL_PROTOCOL_GUID \ - { 0xf42f7782, 0x12e, 0x4c12, { 0x99, 0x56, 0x49, 0xf9, 0x43, 0x4, 0xf7, 0x21 } }; - - struct _EFI_CONSOLE_CONTROL_PROTOCOL; - - typedef enum { - EfiConsoleControlScreenText, - EfiConsoleControlScreenGraphics, - EfiConsoleControlScreenMaxValue, - } EFI_CONSOLE_CONTROL_SCREEN_MODE; - - typedef EFI_STATUS (EFIAPI *EFI_CONSOLE_CONTROL_PROTOCOL_GET_MODE)( - struct _EFI_CONSOLE_CONTROL_PROTOCOL *This, - EFI_CONSOLE_CONTROL_SCREEN_MODE *Mode, - BOOLEAN *UgaExists, - BOOLEAN *StdInLocked - ); - - typedef EFI_STATUS (EFIAPI *EFI_CONSOLE_CONTROL_PROTOCOL_SET_MODE)( - struct _EFI_CONSOLE_CONTROL_PROTOCOL *This, - EFI_CONSOLE_CONTROL_SCREEN_MODE Mode - ); - - typedef EFI_STATUS (EFIAPI *EFI_CONSOLE_CONTROL_PROTOCOL_LOCK_STD_IN)( - struct _EFI_CONSOLE_CONTROL_PROTOCOL *This, - CHAR16 *Password - ); - - typedef struct _EFI_CONSOLE_CONTROL_PROTOCOL { - EFI_CONSOLE_CONTROL_PROTOCOL_GET_MODE GetMode; - EFI_CONSOLE_CONTROL_PROTOCOL_SET_MODE SetMode; - EFI_CONSOLE_CONTROL_PROTOCOL_LOCK_STD_IN LockStdIn; - } EFI_CONSOLE_CONTROL_PROTOCOL; - - EFI_GUID ConsoleControlProtocolGuid = EFI_CONSOLE_CONTROL_PROTOCOL_GUID; - EFI_CONSOLE_CONTROL_PROTOCOL *ConsoleControl = NULL; - EFI_CONSOLE_CONTROL_SCREEN_MODE new; - EFI_CONSOLE_CONTROL_SCREEN_MODE current; - BOOLEAN uga_exists; - BOOLEAN stdin_locked; - EFI_STATUS err; - - err = LibLocateProtocol(&ConsoleControlProtocolGuid, (VOID **)&ConsoleControl); - if (EFI_ERROR(err)) { - /* console control protocol is nonstandard and might not exist. */ - return err == EFI_NOT_FOUND ? EFI_SUCCESS : err; - } - - /* check current mode */ - err = uefi_call_wrapper(ConsoleControl->GetMode, 4, ConsoleControl, ¤t, &uga_exists, &stdin_locked); - if (EFI_ERROR(err)) - return err; - - /* do not touch the mode */ - new = on ? EfiConsoleControlScreenGraphics : EfiConsoleControlScreenText; - if (new == current) - return EFI_SUCCESS; - - err = uefi_call_wrapper(ConsoleControl->SetMode, 2, ConsoleControl, new); - - /* some firmware enables the cursor when switching modes */ - uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, FALSE); - - return err; -} - -struct bmp_file { - CHAR8 signature[2]; - UINT32 size; - UINT16 reserved[2]; - UINT32 offset; -} __attribute__((packed)); - -/* we require at least BITMAPINFOHEADER, later versions are - accepted, but their features ignored */ -struct bmp_dib { - UINT32 size; - UINT32 x; - UINT32 y; - UINT16 planes; - UINT16 depth; - UINT32 compression; - UINT32 image_size; - INT32 x_pixel_meter; - INT32 y_pixel_meter; - UINT32 colors_used; - UINT32 colors_important; -} __attribute__((packed)); - -struct bmp_map { - UINT8 blue; - UINT8 green; - UINT8 red; - UINT8 reserved; -} __attribute__((packed)); - -EFI_STATUS bmp_parse_header(UINT8 *bmp, UINTN size, struct bmp_dib **ret_dib, - struct bmp_map **ret_map, UINT8 **pixmap) { - struct bmp_file *file; - struct bmp_dib *dib; - struct bmp_map *map; - UINTN row_size; - - if (size < sizeof(struct bmp_file) + sizeof(struct bmp_dib)) - return EFI_INVALID_PARAMETER; - - /* check file header */ - file = (struct bmp_file *)bmp; - if (file->signature[0] != 'B' || file->signature[1] != 'M') - return EFI_INVALID_PARAMETER; - if (file->size != size) - return EFI_INVALID_PARAMETER; - if (file->size < file->offset) - return EFI_INVALID_PARAMETER; - - /* check device-independent bitmap */ - dib = (struct bmp_dib *)(bmp + sizeof(struct bmp_file)); - if (dib->size < sizeof(struct bmp_dib)) - return EFI_UNSUPPORTED; - - switch (dib->depth) { - case 1: - case 4: - case 8: - case 24: - if (dib->compression != 0) - return EFI_UNSUPPORTED; - - break; - - case 16: - case 32: - if (dib->compression != 0 && dib->compression != 3) - return EFI_UNSUPPORTED; - - break; - - default: - return EFI_UNSUPPORTED; - } - - row_size = (((dib->depth * dib->x) + 31) / 32) * 4; - if (file->size - file->offset < dib->y * row_size) - return EFI_INVALID_PARAMETER; - if (row_size * dib->y > 64 * 1024 * 1024) - return EFI_INVALID_PARAMETER; - - /* check color table */ - map = (struct bmp_map *)(bmp + sizeof(struct bmp_file) + dib->size); - if (file->offset < sizeof(struct bmp_file) + dib->size) - return EFI_INVALID_PARAMETER; - - if (file->offset > sizeof(struct bmp_file) + dib->size) { - UINT32 map_count; - UINTN map_size; - - if (dib->colors_used) - map_count = dib->colors_used; - else { - switch (dib->depth) { - case 1: - case 4: - case 8: - map_count = 1 << dib->depth; - break; - - default: - map_count = 0; - break; - } - } - - map_size = file->offset - (sizeof(struct bmp_file) + dib->size); - if (map_size != sizeof(struct bmp_map) * map_count) - return EFI_INVALID_PARAMETER; - } - - *ret_map = map; - *ret_dib = dib; - *pixmap = bmp + file->offset; - - return EFI_SUCCESS; -} - -static VOID pixel_blend(UINT32 *dst, const UINT32 source) { - UINT32 alpha, src, src_rb, src_g, dst_rb, dst_g, rb, g; - - alpha = (source & 0xff); - - /* convert src from RGBA to XRGB */ - src = source >> 8; - - /* decompose into RB and G components */ - src_rb = (src & 0xff00ff); - src_g = (src & 0x00ff00); - - dst_rb = (*dst & 0xff00ff); - dst_g = (*dst & 0x00ff00); - - /* blend */ - rb = ((((src_rb - dst_rb) * alpha + 0x800080) >> 8) + dst_rb) & 0xff00ff; - g = ((((src_g - dst_g) * alpha + 0x008000) >> 8) + dst_g) & 0x00ff00; - - *dst = (rb | g); -} - -EFI_STATUS bmp_to_blt(EFI_GRAPHICS_OUTPUT_BLT_PIXEL *buf, - struct bmp_dib *dib, struct bmp_map *map, - UINT8 *pixmap) { - UINT8 *in; - UINTN y; - - /* transform and copy pixels */ - in = pixmap; - for (y = 0; y < dib->y; y++) { - EFI_GRAPHICS_OUTPUT_BLT_PIXEL *out; - UINTN row_size; - UINTN x; - - out = &buf[(dib->y - y - 1) * dib->x]; - for (x = 0; x < dib->x; x++, in++, out++) { - switch (dib->depth) { - case 1: { - UINTN i; - - for (i = 0; i < 8 && x < dib->x; i++) { - out->Red = map[((*in) >> (7 - i)) & 1].red; - out->Green = map[((*in) >> (7 - i)) & 1].green; - out->Blue = map[((*in) >> (7 - i)) & 1].blue; - out++; - x++; - } - out--; - x--; - break; - } - - case 4: { - UINTN i; - - i = (*in) >> 4; - out->Red = map[i].red; - out->Green = map[i].green; - out->Blue = map[i].blue; - if (x < (dib->x - 1)) { - out++; - x++; - i = (*in) & 0x0f; - out->Red = map[i].red; - out->Green = map[i].green; - out->Blue = map[i].blue; - } - break; - } - - case 8: - out->Red = map[*in].red; - out->Green = map[*in].green; - out->Blue = map[*in].blue; - break; - - case 16: { - UINT16 i = *(UINT16 *) in; - - out->Red = (i & 0x7c00) >> 7; - out->Green = (i & 0x3e0) >> 2; - out->Blue = (i & 0x1f) << 3; - in += 1; - break; - } - - case 24: - out->Red = in[2]; - out->Green = in[1]; - out->Blue = in[0]; - in += 2; - break; - - case 32: { - UINT32 i = *(UINT32 *) in; - - pixel_blend((UINT32 *)out, i); - - in += 3; - break; - } - } - } - - /* add row padding; new lines always start at 32 bit boundary */ - row_size = in - pixmap; - in += ((row_size + 3) & ~3) - row_size; - } - - return EFI_SUCCESS; -} - -EFI_STATUS graphics_splash(EFI_FILE *root_dir, CHAR16 *path, - const EFI_GRAPHICS_OUTPUT_BLT_PIXEL *background) { - EFI_GUID GraphicsOutputProtocolGuid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID; - EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput = NULL; - UINT8 *content; - INTN len; - struct bmp_dib *dib; - struct bmp_map *map; - UINT8 *pixmap; - UINT64 blt_size; - VOID *blt = NULL; - UINTN x_pos = 0; - UINTN y_pos = 0; - EFI_STATUS err; - - err = LibLocateProtocol(&GraphicsOutputProtocolGuid, (VOID **)&GraphicsOutput); - if (EFI_ERROR(err)) - return err; - - len = file_read(root_dir, path, 0, 0, &content); - if (len < 0) - return EFI_LOAD_ERROR; - - err = bmp_parse_header(content, len, &dib, &map, &pixmap); - if (EFI_ERROR(err)) - goto err; - - if(dib->x < GraphicsOutput->Mode->Info->HorizontalResolution) - x_pos = (GraphicsOutput->Mode->Info->HorizontalResolution - dib->x) / 2; - if(dib->y < GraphicsOutput->Mode->Info->VerticalResolution) - y_pos = (GraphicsOutput->Mode->Info->VerticalResolution - dib->y) / 2; - - uefi_call_wrapper(GraphicsOutput->Blt, 10, GraphicsOutput, - (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *)background, - EfiBltVideoFill, 0, 0, 0, 0, - GraphicsOutput->Mode->Info->HorizontalResolution, - GraphicsOutput->Mode->Info->VerticalResolution, 0); - - /* EFI buffer */ - blt_size = dib->x * dib->y * sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL); - blt = AllocatePool(blt_size); - if (!blt) - return EFI_OUT_OF_RESOURCES; - - err = uefi_call_wrapper(GraphicsOutput->Blt, 10, GraphicsOutput, - blt, EfiBltVideoToBltBuffer, x_pos, y_pos, 0, 0, - dib->x, dib->y, 0); - if (EFI_ERROR(err)) - goto err; - - err = bmp_to_blt(blt, dib, map, pixmap); - if (EFI_ERROR(err)) - goto err; - - err = graphics_mode(TRUE); - if (EFI_ERROR(err)) - goto err; - - err = uefi_call_wrapper(GraphicsOutput->Blt, 10, GraphicsOutput, - blt, EfiBltBufferToVideo, 0, 0, x_pos, y_pos, - dib->x, dib->y, 0); -err: - FreePool(blt); - FreePool(content); - return err; -} |