1 files changed, 0 insertions, 121 deletions
diff --git a/media/libjpeg/1050342.diff b/media/libjpeg/1050342.diff
deleted file mode 100644
index a409ca2c47..0000000000
--- a/media/libjpeg/1050342.diff
+++ /dev/null
@@ -1,121 +0,0 @@
-Bug 1050342. Fix a case where the fast huffman decoder in libjpeg-turbo can produce different results depending on how data is fed to it.
-
-This change comes from the blink repo https://codereview.appspot.com/229430043/ and is unlikely to be accepted upstream into libjpeg-turbo.
-
-diff --git jdhuff.c jdhuff.c
---- jdhuff.c
-+++ jdhuff.c
-@@ -664,17 +664,17 @@ decode_mcu_fast (j_decompress_ptr cinfo,
-   ASSIGN_STATE(state, entropy->saved);
- 
-   for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-     JBLOCKROW block = MCU_data ? MCU_data[blkn] : NULL;
-     d_derived_tbl *dctbl = entropy->dc_cur_tbls[blkn];
-     d_derived_tbl *actbl = entropy->ac_cur_tbls[blkn];
-     register int s, k, r, l;
- 
--    HUFF_DECODE_FAST(s, l, dctbl);
-+    HUFF_DECODE_FAST(s, l, dctbl, slow_decode_mcu);
-     if (s) {
-       FILL_BIT_BUFFER_FAST
-       r = GET_BITS(s);
-       s = HUFF_EXTEND(r, s);
-     }
- 
-     if (entropy->dc_needed[blkn]) {
-       int ci = cinfo->MCU_membership[blkn];
-@@ -682,17 +682,17 @@ decode_mcu_fast (j_decompress_ptr cinfo,
-       state.last_dc_val[ci] = s;
-       if (block)
-         (*block)[0] = (JCOEF) s;
-     }
- 
-     if (entropy->ac_needed[blkn] && block) {
- 
-       for (k = 1; k < DCTSIZE2; k++) {
--        HUFF_DECODE_FAST(s, l, actbl);
-+        HUFF_DECODE_FAST(s, l, actbl, slow_decode_mcu);
-         r = s >> 4;
-         s &= 15;
- 
-         if (s) {
-           k += r;
-           FILL_BIT_BUFFER_FAST
-           r = GET_BITS(s);
-           s = HUFF_EXTEND(r, s);
-@@ -701,33 +701,34 @@ decode_mcu_fast (j_decompress_ptr cinfo,
-           if (r != 15) break;
-           k += 15;
-         }
-       }
- 
-     } else {
- 
-       for (k = 1; k < DCTSIZE2; k++) {
--        HUFF_DECODE_FAST(s, l, actbl);
-+        HUFF_DECODE_FAST(s, l, actbl, slow_decode_mcu);
-         r = s >> 4;
-         s &= 15;
- 
-         if (s) {
-           k += r;
-           FILL_BIT_BUFFER_FAST
-           DROP_BITS(s);
-         } else {
-           if (r != 15) break;
-           k += 15;
-         }
-       }
-     }
-   }
- 
-   if (cinfo->unread_marker != 0) {
-+slow_decode_mcu:
-     cinfo->unread_marker = 0;
-     return FALSE;
-   }
- 
-   br_state.bytes_in_buffer -= (buffer - br_state.next_input_byte);
-   br_state.next_input_byte = buffer;
-   BITREAD_SAVE_STATE(cinfo,entropy->bitstate);
-   ASSIGN_STATE(entropy->saved, state);
-diff --git jdhuff.h jdhuff.h
---- jdhuff.h
-+++ jdhuff.h
-@@ -203,32 +203,34 @@ EXTERN(boolean) jpeg_fill_bit_buffer
-   } else { \
- slowlabel: \
-     if ((result=jpeg_huff_decode(&state,get_buffer,bits_left,htbl,nb)) < 0) \
-         { failaction; } \
-     get_buffer = state.get_buffer; bits_left = state.bits_left; \
-   } \
- }
- 
--#define HUFF_DECODE_FAST(s,nb,htbl) \
-+#define HUFF_DECODE_FAST(s,nb,htbl,slowlabel) \
-   FILL_BIT_BUFFER_FAST; \
-   s = PEEK_BITS(HUFF_LOOKAHEAD); \
-   s = htbl->lookup[s]; \
-   nb = s >> HUFF_LOOKAHEAD; \
-   /* Pre-execute the common case of nb <= HUFF_LOOKAHEAD */ \
-   DROP_BITS(nb); \
-   s = s & ((1 << HUFF_LOOKAHEAD) - 1); \
-   if (nb > HUFF_LOOKAHEAD) { \
-     /* Equivalent of jpeg_huff_decode() */ \
-     /* Don't use GET_BITS() here because we don't want to modify bits_left */ \
-     s = (get_buffer >> bits_left) & ((1 << (nb)) - 1); \
-     while (s > htbl->maxcode[nb]) { \
-       s <<= 1; \
-       s |= GET_BITS(1); \
-       nb++; \
-     } \
--    s = htbl->pub->huffval[ (int) (s + htbl->valoffset[nb]) & 0xFF ]; \
-+    if (nb > 16) \
-+      goto slowlabel; \
-+    s = htbl->pub->huffval[ (int) (s + htbl->valoffset[nb]) ]; \
-   }
- 
- /* Out-of-line case for Huffman code fetching */
- EXTERN(int) jpeg_huff_decode
-         (bitread_working_state *state, register bit_buf_type get_buffer,
-          register int bits_left, d_derived_tbl *htbl, int min_bits);