libwebp-0.5.2-rc2

third_party/libwebp/dsp/dec.c

 // Copyright 2010 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.
 // -----------------------------------------------------------------------------
 //
 // Speed-critical decoding functions, default plain-C implementations.
@@ skipping 221 matching lines @@
 
 static void DC16NoTopLeft(uint8_t* dst) {  // DC with no top and left samples
   Put16(0x80, dst);
 }
 
 VP8PredFunc VP8PredLuma16[NUM_B_DC_MODES];
 
 //------------------------------------------------------------------------------
 // 4x4
 
-#define AVG3(a, b, c) (((a) + 2 * (b) + (c) + 2) >> 2)
+#define AVG3(a, b, c) ((uint8_t)(((a) + 2 * (b) + (c) + 2) >> 2))
 #define AVG2(a, b) (((a) + (b) + 1) >> 1)
 
 static void VE4(uint8_t* dst) {    // vertical
   const uint8_t* top = dst - BPS;
   const uint8_t vals[4] = {
     AVG3(top[-1], top[0], top[1]),
     AVG3(top[ 0], top[1], top[2]),
     AVG3(top[ 1], top[2], top[3]),
     AVG3(top[ 2], top[3], top[4])
   };
@@ skipping 533 matching lines @@
     }
 #endif
 #if defined(WEBP_USE_MSA)
     if (VP8GetCPUInfo(kMSA)) {
       VP8DspInitMSA();
     }
 #endif
   }
   dec_last_cpuinfo_used = VP8GetCPUInfo;
 }