libwebp: update to 0.4.2-rc2

third_party/libwebp/dsp/lossless.h

 // Copyright 2012 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.
 // -----------------------------------------------------------------------------
 //
 // Image transforms and color space conversion methods for lossless decoder.
@@ skipping 38 matching lines @@
 
 typedef void (*VP8LConvertFunc)(const uint32_t* src, int num_pixels,
                                 uint8_t* dst);
 extern VP8LConvertFunc VP8LConvertBGRAToRGB;
 extern VP8LConvertFunc VP8LConvertBGRAToRGBA;
 extern VP8LConvertFunc VP8LConvertBGRAToRGBA4444;
 extern VP8LConvertFunc VP8LConvertBGRAToRGB565;
 extern VP8LConvertFunc VP8LConvertBGRAToBGR;
 
 // Expose some C-only fallback functions
-extern void VP8LTransformColor_C(const VP8LMultipliers* const m,
+void VP8LTransformColor_C(const VP8LMultipliers* const m,
+                          uint32_t* data, int num_pixels);
+void VP8LTransformColorInverse_C(const VP8LMultipliers* const m,
                                  uint32_t* data, int num_pixels);
-extern void VP8LTransformColorInverse_C(const VP8LMultipliers* const m,
-                                        uint32_t* data, int num_pixels);
 
-extern void VP8LConvertBGRAToRGB_C(const uint32_t* src,
-                                   int num_pixels, uint8_t* dst);
-extern void VP8LConvertBGRAToRGBA_C(const uint32_t* src,
-                                    int num_pixels, uint8_t* dst);
-extern void VP8LConvertBGRAToRGBA4444_C(const uint32_t* src,
-                                        int num_pixels, uint8_t* dst);
-extern void VP8LConvertBGRAToRGB565_C(const uint32_t* src,
-                                      int num_pixels, uint8_t* dst);
-extern void VP8LConvertBGRAToBGR_C(const uint32_t* src,
-                                   int num_pixels, uint8_t* dst);
-extern void VP8LSubtractGreenFromBlueAndRed_C(uint32_t* argb_data,
-                                              int num_pixels);
-extern void VP8LAddGreenToBlueAndRed_C(uint32_t* data, int num_pixels);
+void VP8LConvertBGRAToRGB_C(const uint32_t* src, int num_pixels, uint8_t* dst);
+void VP8LConvertBGRAToRGBA_C(const uint32_t* src, int num_pixels, uint8_t* dst);
+void VP8LConvertBGRAToRGBA4444_C(const uint32_t* src,
+                                 int num_pixels, uint8_t* dst);
+void VP8LConvertBGRAToRGB565_C(const uint32_t* src,
+                               int num_pixels, uint8_t* dst);
+void VP8LConvertBGRAToBGR_C(const uint32_t* src, int num_pixels, uint8_t* dst);
+void VP8LSubtractGreenFromBlueAndRed_C(uint32_t* argb_data, int num_pixels);
+void VP8LAddGreenToBlueAndRed_C(uint32_t* data, int num_pixels);
 
 // Must be called before calling any of the above methods.
 void VP8LDspInit(void);
 
 //------------------------------------------------------------------------------
 // Image transforms.
 
 struct VP8LTransform;  // Defined in dec/vp8li.h.
 
 // Performs inverse transform of data given transform information, start and end
@@ skipping 157 matching lines @@
 void VP8LBundleColorMap(const uint8_t* const row, int width,
                         int xbits, uint32_t* const dst);
 
 //------------------------------------------------------------------------------
 
 #ifdef __cplusplus
 }    // extern "C"
 #endif
 
 #endif  // WEBP_DSP_LOSSLESS_H_