From 596a6d73ce02279a1249903a0241ec0533112adf Mon Sep 17 00:00:00 2001
From: Pascal Massimino <pascal.massimino@gmail.com>
Date: Wed, 30 Oct 2013 03:23:21 -0700
Subject: [PATCH] make use of 'extern' consistent in function declarations

Change-Id: I18e050db3111e52acfe97da09cdf1860f3e15936
---
 src/dsp/lossless.h  |  4 ++--
 src/dsp/yuv.h       | 20 ++++++++++----------
 src/utils/filters.h |  4 ++--
 src/utils/random.h  |  2 +-
 4 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/src/dsp/lossless.h b/src/dsp/lossless.h
index 5ff779c1..81196063 100644
--- a/src/dsp/lossless.h
+++ b/src/dsp/lossless.h
@@ -89,8 +89,8 @@ static WEBP_INLINE uint32_t VP8LSubSampleSize(uint32_t size,
 #define LOG_LOOKUP_IDX_MAX 256
 extern const float kLog2Table[LOG_LOOKUP_IDX_MAX];
 extern const float kSLog2Table[LOG_LOOKUP_IDX_MAX];
-extern float VP8LFastLog2Slow(int v);
-extern float VP8LFastSLog2Slow(int v);
+float VP8LFastLog2Slow(int v);
+float VP8LFastSLog2Slow(int v);
 static WEBP_INLINE float VP8LFastLog2(int v) {
   return (v < LOG_LOOKUP_IDX_MAX) ? kLog2Table[v] : VP8LFastLog2Slow(v);
 }
diff --git a/src/dsp/yuv.h b/src/dsp/yuv.h
index efda0175..3ad434ee 100644
--- a/src/dsp/yuv.h
+++ b/src/dsp/yuv.h
@@ -245,20 +245,20 @@ void VP8YUVInit(void);
 
 #if defined(WEBP_USE_SSE2)
 
-#ifdef FANCY_UPSAMPLING
+#if defined(FANCY_UPSAMPLING)
 // Process 32 pixels and store the result (24b or 32b per pixel) in *dst.
-extern void VP8YuvToRgba32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
-                           uint8_t* dst);
-extern void VP8YuvToRgb32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
-                          uint8_t* dst);
-extern void VP8YuvToBgra32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
-                           uint8_t* dst);
-extern void VP8YuvToBgr32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
-                          uint8_t* dst);
+void VP8YuvToRgba32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
+                    uint8_t* dst);
+void VP8YuvToRgb32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
+                   uint8_t* dst);
+void VP8YuvToBgra32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
+                    uint8_t* dst);
+void VP8YuvToBgr32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
+                   uint8_t* dst);
 #endif  // FANCY_UPSAMPLING
 
 // Must be called to initialize tables before using the functions.
-extern void VP8YUVInitSSE2(void);
+void VP8YUVInitSSE2(void);
 
 #endif    // WEBP_USE_SSE2
 
diff --git a/src/utils/filters.h b/src/utils/filters.h
index ace8d309..ae8ef85d 100644
--- a/src/utils/filters.h
+++ b/src/utils/filters.h
@@ -49,8 +49,8 @@ extern const WebPFilterFunc WebPFilters[WEBP_FILTER_LAST];
 extern const WebPUnfilterFunc WebPUnfilters[WEBP_FILTER_LAST];
 
 // Fast estimate of a potentially good filter.
-extern WEBP_FILTER_TYPE EstimateBestFilter(const uint8_t* data,
-                                           int width, int height, int stride);
+WEBP_FILTER_TYPE EstimateBestFilter(const uint8_t* data,
+                                    int width, int height, int stride);
 
 #if defined(__cplusplus) || defined(c_plusplus)
 }    // extern "C"
diff --git a/src/utils/random.h b/src/utils/random.h
index 39235316..9a755eb9 100644
--- a/src/utils/random.h
+++ b/src/utils/random.h
@@ -31,7 +31,7 @@ typedef struct {
 } VP8Random;
 
 // Initializes random generator with an amplitude 'dithering' in range [0..1].
-extern void VP8InitRandom(VP8Random* const rg, float dithering);
+void VP8InitRandom(VP8Random* const rg, float dithering);
 
 // Returns a centered pseudo-random number with 'num_bits' amplitude.
 // (uses D.Knuth's Difference-based random generator)