Updates libjpeg-turbo to 1.1.90 (r677)

third_party/libjpeg_turbo/jmemmgr.c

Index: third_party/libjpeg_turbo/jmemmgr.c
===================================================================
--- third_party/libjpeg_turbo/jmemmgr.c	(revision 95020)
+++ third_party/libjpeg_turbo/jmemmgr.c	(working copy)
@@ -37,6 +37,15 @@
 #endif
 
 
+LOCAL(size_t)
+round_up_pow2 (size_t a, size_t b)
+/* a rounded up to the next multiple of b, i.e. ceil(a/b)*b */
+/* Assumes a >= 0, b > 0, and b is a power of 2 */
+{
+  return ((a + b - 1) & (~(b - 1)));
+}
+
+
 /*
  * Some important notes:
  *   The allocation routines provided here must never return NULL.
@@ -265,7 +274,7 @@
    * and so that algorithms can straddle outside the proper area up
    * to the next alignment.
    */
-  sizeofobject = jround_up(sizeofobject, ALIGN_SIZE);
+  sizeofobject = round_up_pow2(sizeofobject, ALIGN_SIZE);
 
   /* Check for unsatisfiable request (do now to ensure no overflow below) */
   if ((SIZEOF(small_pool_hdr) + sizeofobject + ALIGN_SIZE - 1) > MAX_ALLOC_CHUNK)
@@ -354,7 +363,7 @@
    * algorithms can straddle outside the proper area up to the next
    * alignment.
    */
-  sizeofobject = jround_up(sizeofobject, ALIGN_SIZE);
+  sizeofobject = round_up_pow2(sizeofobject, ALIGN_SIZE);
 
   /* Check for unsatisfiable request (do now to ensure no overflow below) */
   if ((SIZEOF(large_pool_hdr) + sizeofobject + ALIGN_SIZE - 1) > MAX_ALLOC_CHUNK)
@@ -420,7 +429,7 @@
   /* Make sure each row is properly aligned */
   if ((ALIGN_SIZE % SIZEOF(JSAMPLE)) != 0)
     out_of_memory(cinfo, 5);	/* safety check */
-  samplesperrow = (JDIMENSION)jround_up(samplesperrow, (2 * ALIGN_SIZE) / SIZEOF(JSAMPLE));
+  samplesperrow = (JDIMENSION)round_up_pow2(samplesperrow, (2 * ALIGN_SIZE) / SIZEOF(JSAMPLE));
 
   /* Calculate max # of rows allowed in one allocation chunk */
   ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) /