Hi, changes in this new version:
handle width/height that's not multiple of 8 add support for 1:1:1 sampling skip unrecognized marker instead of error. verify the size of sof, sos, quantization table and huffman table. /* * GRUB -- GRand Unified Bootloader * Copyright (C) 2008 Free Software Foundation, Inc. * * GRUB is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * GRUB 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GRUB. If not, see <http://www.gnu.org/licenses/>. */ #include <grub/bitmap.h> #include <grub/types.h> #include <grub/normal.h> #include <grub/dl.h> #include <grub/mm.h> #include <grub/misc.h> #include <grub/arg.h> #include <grub/file.h> #include <grub/setjmp.h> /* Uncomment following define to enable JPEG debug. */ //#define JPEG_DEBUG typedef enum { /* JPEG marker codes */ M_SOF0 = 0xc0, M_SOF1 = 0xc1, M_SOF2 = 0xc2, M_SOF3 = 0xc3, M_SOF5 = 0xc5, M_SOF6 = 0xc6, M_SOF7 = 0xc7, M_JPG = 0xc8, M_SOF9 = 0xc9, M_SOF10 = 0xca, M_SOF11 = 0xcb, M_SOF13 = 0xcd, M_SOF14 = 0xce, M_SOF15 = 0xcf, M_DHT = 0xc4, M_DAC = 0xcc, M_RST0 = 0xd0, M_RST1 = 0xd1, M_RST2 = 0xd2, M_RST3 = 0xd3, M_RST4 = 0xd4, M_RST5 = 0xd5, M_RST6 = 0xd6, M_RST7 = 0xd7, M_SOI = 0xd8, M_EOI = 0xd9, M_SOS = 0xda, M_DQT = 0xdb, M_DNL = 0xdc, M_DRI = 0xdd, M_DHP = 0xde, M_EXP = 0xdf, M_APP0 = 0xe0, M_APP1 = 0xe1, M_APP2 = 0xe2, M_APP3 = 0xe3, M_APP4 = 0xe4, M_APP5 = 0xe5, M_APP6 = 0xe6, M_APP7 = 0xe7, M_APP8 = 0xe8, M_APP9 = 0xe9, M_APP10 = 0xea, M_APP11 = 0xeb, M_APP12 = 0xec, M_APP13 = 0xed, M_APP14 = 0xee, M_APP15 = 0xef, M_JPG0 = 0xf0, M_JPG13 = 0xfd, M_COM = 0xfe, M_TEM = 0x01, M_ERROR = 0x100 } JPEG_MARKER; typedef int jpeg_data_unit[64]; struct grub_jpeg_data { grub_file_t file; grub_jmp_buf jumper; int image_width; int image_height; grub_uint8_t *huff_value[4]; int huff_offset[4][16]; int huff_maxval[4][16]; grub_uint8_t quan_table[2][64]; int comp_index[3][3]; jpeg_data_unit ydu[4]; jpeg_data_unit crdu; jpeg_data_unit cbdu; int Cr_r_tab[256], Cb_b_tab[256], Cr_g_tab[256], Cb_g_tab[256]; int vs, hs; int dc_value[3]; int bit_mask, bit_save; struct grub_video_bitmap **bitmap; }; static grub_uint8_t get_byte (struct grub_jpeg_data *data) { grub_uint8_t r; if (grub_file_read (data->file, (char *) &r, 1) != 1) grub_longjmp (data->jumper, 1); return r; } static grub_uint16_t get_word (struct grub_jpeg_data *data) { grub_uint16_t r; if (grub_file_read (data->file, (char *) &r, 2) != 2) grub_longjmp (data->jumper, 1); return grub_be_to_cpu16 (r); } static int get_bit (struct grub_jpeg_data *data) { int ret; if (data->bit_mask == 0) { data->bit_save = get_byte (data); if (data->bit_save == 0xFF) { if (get_byte (data) != 0) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: invalid 0xFF in data stream"); grub_longjmp (data->jumper, 1); } } data->bit_mask = 0x80; } ret = (data->bit_save & data->bit_mask); data->bit_mask >>= 1; return ret; } static int get_number (struct grub_jpeg_data *data, int num) { int value, i, bit; if (num == 0) return 0; bit = get_bit (data); value = (bit != 0); for (i = 1; i < num; i++) value = value * 2 + (get_bit (data) != 0); if (!bit) value += 1 - (1 << num); return value; } static int get_huff_code (struct grub_jpeg_data *data, int id) { int code, i; code = 0; for (i = 0; i < 16; i++) { code <<= 1; if (get_bit (data)) code++; if (code < data->huff_maxval[id][i]) return data->huff_value[id][code + data->huff_offset[id][i]]; } grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: huffman decode fails"); grub_longjmp (data->jumper, 1); return 0; } static void decode_huff_table (struct grub_jpeg_data *data) { int id, ac, i, n, base, ofs; grub_uint32_t next_marker; grub_uint8_t count[16]; next_marker = data->file->offset; next_marker += get_word (data); id = get_byte (data); ac = (id >> 4); id &= 0xF; if (id > 1) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: too many huffman table"); grub_longjmp (data->jumper, 1); } if (grub_file_read (data->file, (char *) &count, sizeof (count)) != sizeof (count)) grub_longjmp (data->jumper, 1); n = 0; for (i = 0; i < 16; i++) n += count[i]; id += ac * 2; data->huff_value[id] = grub_malloc (n); if (data->huff_value[id] == NULL) grub_longjmp (data->jumper, 1); if (grub_file_read (data->file, (char *) data->huff_value[id], n) != n) grub_longjmp (data->jumper, 1); base = 0; ofs = 0; for (i = 0; i < 16; i++) { base += count[i]; ofs += count[i]; data->huff_maxval[id][i] = base; data->huff_offset[id][i] = ofs - base; base <<= 1; } if (data->file->offset != next_marker) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: extra byte in huffman table"); grub_longjmp (data->jumper, 1); } } static void decode_quan_table (struct grub_jpeg_data *data) { int id; grub_uint32_t next_marker; next_marker = data->file->offset; next_marker += get_word (data); id = get_byte (data); if (id >= 0x10) /* upper 4-bit is precision */ { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: only 8-bit precision is supported"); grub_longjmp (data->jumper, 1); } if (id > 1) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: too many quantization table"); grub_longjmp (data->jumper, 1); } if (grub_file_read (data->file, (char *) &data->quan_table[id], 64) != 64) grub_longjmp (data->jumper, 1); if (data->file->offset != next_marker) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: extra byte in quantization table"); grub_longjmp (data->jumper, 1); } } static void decode_sof (struct grub_jpeg_data *data) { int nc, i; grub_uint32_t next_marker; next_marker = data->file->offset; next_marker += get_word (data); if (get_byte (data) != 8) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: only 8-bit precision is supported"); grub_longjmp (data->jumper, 1); } data->image_height = get_word (data); data->image_width = get_word (data); if ((!data->image_height) || (!data->image_width)) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: invalid image size"); grub_longjmp (data->jumper, 1); } nc = get_byte (data); if (nc != 3) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: component count must be 3"); grub_longjmp (data->jumper, 1); } for (i = 0; i < nc; i++) { int id, ss; id = get_byte (data) - 1; if ((id < 0) || (id >= 3)) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: invalid index"); grub_longjmp (data->jumper, 1); } ss = get_byte (data); if (!id) { int mask; data->vs = ss & 0xF; data->hs = ss >> 4; if ((data->vs > 2) || (data->hs > 2)) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: sampling method nor supported"); grub_longjmp (data->jumper, 1); } mask = 8 * data->vs - 1; data->image_height = (data->image_height + mask) & (~mask); mask = 8 * data->hs - 1; data->image_width = (data->image_width + mask) & (~mask); } else if (ss != 0x11) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: sampling method nor supported"); grub_longjmp (data->jumper, 1); } data->comp_index[id][0] = get_byte (data); } if (data->file->offset != next_marker) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: extra byte in sof"); grub_longjmp (data->jumper, 1); } } #define DCTSIZE 8 #define CONST_BITS 8 #define PASS1_BITS 2 #define FIX_1_082392200 ((int) 277) /* FIX(1.082392200) */ #define FIX_1_414213562 ((int) 362) /* FIX(1.414213562) */ #define FIX_1_847759065 ((int) 473) /* FIX(1.847759065) */ #define FIX_2_613125930 ((int) 669) /* FIX(2.613125930) */ #define ONE ((long) 1) #define DESCALE(x,n) (((x) + (ONE << ((n)-1))) >> (n)) #define MULTIPLY(var,const) DESCALE((var) * (const), CONST_BITS) static const grub_uint8_t natural_order[64] = { 0, 1, 8, 16, 9, 2, 3, 10, 17, 24, 32, 25, 18, 11, 4, 5, 12, 19, 26, 33, 40, 48, 41, 34, 27, 20, 13, 6, 7, 14, 21, 28, 35, 42, 49, 56, 57, 50, 43, 36, 29, 22, 15, 23, 30, 37, 44, 51, 58, 59, 52, 45, 38, 31, 39, 46, 53, 60, 61, 54, 47, 55, 62, 63 }; static const int aanscales[64] = { /* precomputed values scaled up by 14 bits */ 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270, 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906, 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315, 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552, 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446, 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247 }; static void idct_transform (jpeg_data_unit du) { int *pd; int ctr; int tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; int tmp10, tmp11, tmp12, tmp13; int z5, z10, z11, z12, z13; /* Pass 1: process columns from input, store into work array. */ pd = du; for (ctr = DCTSIZE; ctr > 0; ctr--) { if ((pd[DCTSIZE * 1] | pd[DCTSIZE * 2] | pd[DCTSIZE * 3] | pd[DCTSIZE * 4] | pd[DCTSIZE * 5] | pd[DCTSIZE * 6] | pd[DCTSIZE * 7]) == 0) { pd[DCTSIZE * 1] = pd[DCTSIZE * 2] = pd[DCTSIZE * 3] = pd[DCTSIZE * 4] = pd[DCTSIZE * 5] = pd[DCTSIZE * 6] = pd[DCTSIZE * 7] = pd[DCTSIZE * 0]; pd++; /* advance pointers to next column */ continue; } /* Even part */ tmp0 = pd[DCTSIZE * 0]; tmp1 = pd[DCTSIZE * 2]; tmp2 = pd[DCTSIZE * 4]; tmp3 = pd[DCTSIZE * 6]; tmp10 = tmp0 + tmp2; /* phase 3 */ tmp11 = tmp0 - tmp2; tmp13 = tmp1 + tmp3; /* phases 5-3 */ tmp12 = MULTIPLY (tmp1 - tmp3, FIX_1_414213562) - tmp13; /* 2*c4 */ tmp0 = tmp10 + tmp13; /* phase 2 */ tmp3 = tmp10 - tmp13; tmp1 = tmp11 + tmp12; tmp2 = tmp11 - tmp12; /* Odd part */ tmp4 = pd[DCTSIZE * 1]; tmp5 = pd[DCTSIZE * 3]; tmp6 = pd[DCTSIZE * 5]; tmp7 = pd[DCTSIZE * 7]; z13 = tmp6 + tmp5; /* phase 6 */ z10 = tmp6 - tmp5; z11 = tmp4 + tmp7; z12 = tmp4 - tmp7; tmp7 = z11 + z13; /* phase 5 */ tmp11 = MULTIPLY (z11 - z13, FIX_1_414213562); /* 2*c4 */ z5 = MULTIPLY (z10 + z12, FIX_1_847759065); /* 2*c2 */ tmp10 = MULTIPLY (z12, FIX_1_082392200) - z5; /* 2*(c2-c6) */ tmp12 = MULTIPLY (z10, -FIX_2_613125930) + z5; /* -2*(c2+c6) */ tmp6 = tmp12 - tmp7; /* phase 2 */ tmp5 = tmp11 - tmp6; tmp4 = tmp10 + tmp5; pd[DCTSIZE * 0] = (int) (tmp0 + tmp7); pd[DCTSIZE * 7] = (int) (tmp0 - tmp7); pd[DCTSIZE * 1] = (int) (tmp1 + tmp6); pd[DCTSIZE * 6] = (int) (tmp1 - tmp6); pd[DCTSIZE * 2] = (int) (tmp2 + tmp5); pd[DCTSIZE * 5] = (int) (tmp2 - tmp5); pd[DCTSIZE * 4] = (int) (tmp3 + tmp4); pd[DCTSIZE * 3] = (int) (tmp3 - tmp4); pd++; /* advance pointers to next column */ } /* Pass 2: process rows from work array, store into output array. */ /* Note that we must descale the results by a factor of 8 == 2**3, */ /* and also undo the PASS1_BITS scaling. */ pd = du; for (ctr = 0; ctr < DCTSIZE; ctr++) { /* Even part */ tmp10 = pd[0] + pd[4]; tmp11 = pd[0] - pd[4]; tmp13 = pd[2] + pd[6]; tmp12 = MULTIPLY (pd[2] - pd[6], FIX_1_414213562) - tmp13; tmp0 = tmp10 + tmp13; tmp3 = tmp10 - tmp13; tmp1 = tmp11 + tmp12; tmp2 = tmp11 - tmp12; /* Odd part */ z13 = pd[5] + pd[3]; z10 = pd[5] - pd[3]; z11 = pd[1] + pd[7]; z12 = pd[1] - pd[7]; tmp7 = z11 + z13; /* phase 5 */ tmp11 = MULTIPLY (z11 - z13, FIX_1_414213562); /* 2*c4 */ z5 = MULTIPLY (z10 + z12, FIX_1_847759065); /* 2*c2 */ tmp10 = MULTIPLY (z12, FIX_1_082392200) - z5; /* 2*(c2-c6) */ tmp12 = MULTIPLY (z10, -FIX_2_613125930) + z5; /* -2*(c2+c6) */ tmp6 = tmp12 - tmp7; /* phase 2 */ tmp5 = tmp11 - tmp6; tmp4 = tmp10 + tmp5; /* Final output stage: scale down by a factor of 8 and range-limit */ pd[0] = DESCALE (tmp0 + tmp7, PASS1_BITS + 3) + 128; pd[7] = DESCALE (tmp0 - tmp7, PASS1_BITS + 3) + 128; pd[1] = DESCALE (tmp1 + tmp6, PASS1_BITS + 3) + 128; pd[6] = DESCALE (tmp1 - tmp6, PASS1_BITS + 3) + 128; pd[2] = DESCALE (tmp2 + tmp5, PASS1_BITS + 3) + 128; pd[5] = DESCALE (tmp2 - tmp5, PASS1_BITS + 3) + 128; pd[4] = DESCALE (tmp3 + tmp4, PASS1_BITS + 3) + 128; pd[3] = DESCALE (tmp3 - tmp4, PASS1_BITS + 3) + 128; pd += DCTSIZE; /* advance pointer to next row */ } for (ctr = 0; ctr < 64; ctr++) { if (du[ctr] < 0) du[ctr] = 0; if (du[ctr] > 255) du[ctr] = 255; } } static void decode_du (struct grub_jpeg_data *data, int id, jpeg_data_unit du) { int pos, h1, h2, qt; grub_memset (du, 0, sizeof (jpeg_data_unit)); qt = data->comp_index[id][0]; h1 = data->comp_index[id][1]; h2 = data->comp_index[id][2]; data->dc_value[id] += get_number (data, get_huff_code (data, h1)); du[0] = data->dc_value[id] * DESCALE ((int) data->quan_table[qt][0] * (int) aanscales[0], 14 - 2); pos = 1; while (pos < 64) { int num, val; num = get_huff_code (data, h2); if (!num) break; val = get_number (data, num & 0xF); num >>= 4; pos += num; du[natural_order[pos]] = val * DESCALE ((int) data->quan_table[qt][pos] * (int) aanscales[natural_order[pos]], 14 - 2); pos++; } idct_transform (du); } #define SCALEBITS 16 /* speediest right-shift on some machines */ #define ONE_HALF ((int) 1 << (SCALEBITS-1)) #define FIX(x) ((int) ((x) * (1L<<SCALEBITS) + 0.5)) static void build_color_table (struct grub_jpeg_data *data) { int i, x; for (i = 0, x = -128; i <= 255; i++, x++) { data->Cr_r_tab[i] = (int) (FIX (1.40200) * x + ONE_HALF) >> SCALEBITS; data->Cb_b_tab[i] = (int) (FIX (1.77200) * x + ONE_HALF) >> SCALEBITS; data->Cr_g_tab[i] = (-FIX (0.71414)) * x; data->Cb_g_tab[i] = (-FIX (0.34414)) * x + ONE_HALF; } } static void decode_sos (struct grub_jpeg_data *data) { int nc, i, r1, c1, vb, hb; grub_uint8_t *ptr; grub_uint32_t data_offset; data_offset = data->file->offset; data_offset += get_word (data); nc = get_byte (data); if (nc != 3) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: component count must be 3"); grub_longjmp (data->jumper, 1); } for (i = 0; i < nc; i++) { int id, ht; id = get_byte (data) - 1; if ((id < 0) || (id >= 3)) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: invalid index"); grub_longjmp (data->jumper, 1); } ht = get_byte (data); data->comp_index[id][1] = (ht >> 4); data->comp_index[id][2] = (ht & 0xF) + 2; } get_byte (data); /* skip 3 unused bytes */ get_word (data); if (data->file->offset != data_offset) { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: extra byte in sos"); grub_longjmp (data->jumper, 1); } if (grub_video_bitmap_create (data->bitmap, data->image_width, data->image_height, GRUB_VIDEO_BLIT_FORMAT_R8G8B8)) grub_longjmp (data->jumper, 1); ptr = (*data->bitmap)->data; data->bit_mask = 0x0; vb = data->vs * 8; hb = data->hs * 8; for (r1 = 0; r1 < (data->image_height / vb); r1++) for (c1 = 0; c1 < (data->image_width / hb); c1++) { int r2, c2; for (r2 = 0; r2 < data->vs; r2++) for (c2 = 0; c2 < data->hs; c2++) decode_du (data, 0, data->ydu[r2 * 2 + c2]); decode_du (data, 1, data->cbdu); decode_du (data, 2, data->crdu); for (r2 = 0; r2 < vb; r2++) for (c2 = 0; c2 < hb; c2++) { int i0, i1, yy, cr, cb, dd; i0 = ((r1 * vb + r2) * data->image_width + c1 * hb + c2) * 3; i1 = (r2 / data->vs) * 8 + (c2 / data->hs); yy = data->ydu[(r2 / 8) * 2 + (c2 / 8)][(r2 % 8) * 8 + (c2 % 8)]; cr = data->crdu[i1]; cb = data->cbdu[i1]; /* Red */ dd = yy + data->Cr_r_tab[cr]; if (dd < 0) dd = 0; if (dd > 255) dd = 255; ptr[i0] = dd; /* Green */ dd = yy + ((data->Cb_g_tab[cb] + data->Cr_g_tab[cr]) >> SCALEBITS); if (dd < 0) dd = 0; if (dd > 255) dd = 255; ptr[i0 + 1] = dd; /* Blue */ dd = yy + data->Cb_b_tab[cb]; if (dd < 0) dd = 0; if (dd > 255) dd = 255; ptr[i0 + 2] = dd; } } } static grub_uint8_t get_marker (struct grub_jpeg_data *data) { grub_uint8_t r; r = get_byte (data); if (r != 0xFF) /* escape character */ { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: invalid maker"); grub_longjmp (data->jumper, 1); } return get_byte (data); } static void decode_jpeg (struct grub_jpeg_data *data) { build_color_table (data); if (get_marker (data) != M_SOI) /* Start Of Image */ { grub_error (GRUB_ERR_BAD_FILE_TYPE, "jpeg: invalid jpeg file"); grub_longjmp (data->jumper, 1); } while (1) { grub_uint8_t marker; marker = get_marker (data); #ifdef JPEG_DEBUG grub_printf ("jpeg marker: %x\n", marker); #endif switch (marker) { case M_DHT: /* Define Huffman Table */ decode_huff_table (data); break; case M_DQT: /* Define Quantization Table */ decode_quan_table (data); break; case M_SOF0: /* Start Of Frame 0 */ decode_sof (data); break; case M_SOS: /* Start Of Scan */ decode_sos (data); break; case M_EOI: /* End Of Image */ return; default: /* Skip unrecognized marker */ { grub_uint16_t sz; sz = get_word (data); grub_file_seek (data->file, data->file->offset + sz - 2); } } } } static grub_err_t grub_video_reader_jpeg (struct grub_video_bitmap **bitmap, const char *filename) { grub_file_t file; struct grub_jpeg_data *data; file = grub_file_open (filename); if (!file) return grub_errno; data = grub_malloc (sizeof (*data)); if (data != NULL) { int i; grub_memset (data, 0, sizeof (*data)); data->file = file; data->bitmap = bitmap; if (!grub_setjmp (data->jumper)) decode_jpeg (data); for (i = 0; i < 4; i++) if (data->huff_value[i]) grub_free (data->huff_value[i]); grub_free (data); } if (grub_errno != GRUB_ERR_NONE) { grub_video_bitmap_destroy (*bitmap); *bitmap = 0; } grub_file_close (file); return grub_errno; } #if defined(JPEG_DEBUG) static grub_err_t grub_cmd_jpegtest (struct grub_arg_list *state __attribute__ ((unused)), int argc, char **args) { struct grub_video_bitmap *bitmap = 0; if (argc != 1) return grub_error (GRUB_ERR_BAD_ARGUMENT, "file name required"); grub_video_reader_jpeg (&bitmap, args[0]); if (grub_errno != GRUB_ERR_NONE) return grub_errno; grub_video_bitmap_destroy (bitmap); return GRUB_ERR_NONE; } #endif static struct grub_video_bitmap_reader jpg_reader = { .extension = ".jpg", .reader = grub_video_reader_jpeg, .next = 0 }; static struct grub_video_bitmap_reader jpeg_reader = { .extension = ".jpeg", .reader = grub_video_reader_jpeg, .next = 0 }; GRUB_MOD_INIT (video_reader_jpeg) { grub_video_bitmap_reader_register (&jpg_reader); grub_video_bitmap_reader_register (&jpeg_reader); #if defined(JPEG_DEBUG) grub_register_command ("jpegtest", grub_cmd_jpegtest, GRUB_COMMAND_FLAG_BOTH, "jpegtest FILE", "Tests loading of JPEG bitmap.", 0); #endif } GRUB_MOD_FINI (video_reader_jpeg) { #if defined(JPEG_DEBUG) grub_unregister_command ("jpegtest"); #endif grub_video_bitmap_reader_unregister (&jpeg_reader); grub_video_bitmap_reader_unregister (&jpg_reader); } -- Bean _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel