libwebp: update to 0.5.0

third_party/libwebp/utils/bit_reader_inl.h

 // Copyright 2014 Google Inc. All Rights Reserved.
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the COPYING file in the root of the source
 // tree. An additional intellectual property rights grant can be found
 // in the file PATENTS. All contributing project authors may
 // be found in the AUTHORS file in the root of the source tree.
 // -----------------------------------------------------------------------------
 //
 // Specific inlined methods for boolean decoder [VP8GetBit() ...]
@@ skipping 28 matching lines @@
 typedef uint64_t lbit_t;
 #elif (BITS > 16)
 typedef uint32_t lbit_t;
 #elif (BITS >  8)
 typedef uint16_t lbit_t;
 #else
 typedef uint8_t lbit_t;
 #endif
 
 extern const uint8_t kVP8Log2Range[128];
-extern const range_t kVP8NewRange[128];
+extern const uint8_t kVP8NewRange[128];
 
 // special case for the tail byte-reading
 void VP8LoadFinalBytes(VP8BitReader* const br);
 
 //------------------------------------------------------------------------------
 // Inlined critical functions
 
 // makes sure br->value_ has at least BITS bits worth of data
 static WEBP_INLINE void VP8LoadNewBytes(VP8BitReader* const br) {
   assert(br != NULL && br->buf_ != NULL);
   // Read 'BITS' bits at a time if possible.
-  if (br->buf_ + sizeof(lbit_t) <= br->buf_end_) {
+  if (br->buf_ < br->buf_max_) {
     // convert memory type to register type (with some zero'ing!)
     bit_t bits;
 #if defined(WEBP_FORCE_ALIGNED)
     lbit_t in_bits;
     memcpy(&in_bits, br->buf_, sizeof(in_bits));
 #elif defined(WEBP_USE_MIPS32)
     // This is needed because of un-aligned read.
     lbit_t in_bits;
     lbit_t* p_buf_ = (lbit_t*)br->buf_;
     __asm__ volatile(
@@ skipping 91 matching lines @@
     br->value_ -= (bit_t)((split + 1) & mask) << pos;
     return (v ^ mask) - mask;
   }
 }
 
 #ifdef __cplusplus
 }    // extern "C"
 #endif
 
 #endif   // WEBP_UTILS_BIT_READER_INL_H_