boot: efi - split graphics and splash handling

1 files changed, 0 insertions, 300 deletions

diff --git a/src/boot/efi/graphics.c b/src/boot/efi/graphics.c
index 124022a68f..2e9c11f5a0 100644
--- a/src/boot/efi/graphics.c
+++ b/src/boot/efi/graphics.c
@@ -89,303 +89,3 @@ EFI_STATUS graphics_mode(BOOLEAN on) {
 
         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(UINT8 *content, UINTN len, const EFI_GRAPHICS_OUTPUT_BLT_PIXEL *background) {
-        EFI_GRAPHICS_OUTPUT_BLT_PIXEL pixel = {};
-        EFI_GUID GraphicsOutputProtocolGuid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID;
-        EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput = NULL;
-        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;
-
-        if (!background) {
-                if (StriCmp(L"Apple", ST->FirmwareVendor) == 0) {
-                        pixel.Red = 0xc0;
-                        pixel.Green = 0xc0;
-                        pixel.Blue = 0xc0;
-                }
-                background = &pixel;
-        }
-
-        err = LibLocateProtocol(&GraphicsOutputProtocolGuid, (VOID **)&GraphicsOutput);
-        if (EFI_ERROR(err))
-                return err;
-
-        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);
-        return err;
-}