libwebp: update to 0.4.4

third_party/libwebp/dsp/dsp.h

 // Copyright 2011 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 functions.
@@ skipping 18 matching lines @@
 
 #if defined(__GNUC__)
 # define LOCAL_GCC_VERSION ((__GNUC__ << 8) | __GNUC_MINOR__)
 # define LOCAL_GCC_PREREQ(maj, min) \
     (LOCAL_GCC_VERSION >= (((maj) << 8) | (min)))
 #else
 # define LOCAL_GCC_VERSION 0
 # define LOCAL_GCC_PREREQ(maj, min) 0
 #endif
 
-#ifdef __clang__
-# define LOCAL_CLANG_VERSION ((__clang_major__ << 8) | __clang_minor__)
-# define LOCAL_CLANG_PREREQ(maj, min) \
-    (LOCAL_CLANG_VERSION >= (((maj) << 8) | (min)))
-#else
-# define LOCAL_CLANG_VERSION 0
-# define LOCAL_CLANG_PREREQ(maj, min) 0
-#endif  // __clang__
+#ifndef __has_builtin
+# define __has_builtin(x) 0
+#endif
 
 #if defined(_MSC_VER) && _MSC_VER > 1310 && \
     (defined(_M_X64) || defined(_M_IX86))
 #define WEBP_MSC_SSE2  // Visual C++ SSE2 targets
 #endif
 
 // WEBP_HAVE_* are used to indicate the presence of the instruction set in dsp
 // files without intrinsics, allowing the corresponding Init() to be called.
 // Files containing intrinsics will need to be built targeting the instruction
 // set so should succeed on one of the earlier tests.
 #if defined(__SSE2__) || defined(WEBP_MSC_SSE2) || defined(WEBP_HAVE_SSE2)
 #define WEBP_USE_SSE2
 #endif
 
 #if defined(__AVX2__) || defined(WEBP_HAVE_AVX2)
 #define WEBP_USE_AVX2
 #endif
 
 #if defined(__ANDROID__) && defined(__ARM_ARCH_7A__)
 #define WEBP_ANDROID_NEON  // Android targets that might support NEON
 #endif
 
 // The intrinsics currently cause compiler errors with arm-nacl-gcc and the
 // inline assembly would need to be modified for use with Native Client.
 #if (defined(__ARM_NEON__) || defined(WEBP_ANDROID_NEON) || \
      defined(__aarch64__)) && !defined(__native_client__)
 #define WEBP_USE_NEON
 #endif
 
-#if defined(__mips__) && !defined(__mips64) && (__mips_isa_rev < 6)
+#if defined(__mips__) && !defined(__mips64) && \
+    defined(__mips_isa_rev) && (__mips_isa_rev >= 1) && (__mips_isa_rev < 6)
 #define WEBP_USE_MIPS32
 #if (__mips_isa_rev >= 2)
 #define WEBP_USE_MIPS32_R2
 #endif
 #endif
 
 typedef enum {
   kSSE2,
   kSSE3,
   kAVX,
@@ skipping 200 matching lines @@
                   int width, int num_rows, int inverse);
 
 // To be called first before using the above.
 void WebPInitAlphaProcessing(void);
 
 #ifdef __cplusplus
 }    // extern "C"
 #endif
 
 #endif  /* WEBP_DSP_DSP_H_ */