1 files changed, 0 insertions, 115 deletions
diff --git a/drivers/webpold/enc/histogram.h b/drivers/webpold/enc/histogram.h
deleted file mode 100644
index 5b5de25539..0000000000
--- a/drivers/webpold/enc/histogram.h
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright 2012 Google Inc. All Rights Reserved.
-//
-// This code is licensed under the same terms as WebM:
-//  Software License Agreement:  http://www.webmproject.org/license/software/
-//  Additional IP Rights Grant:  http://www.webmproject.org/license/additional/
-// -----------------------------------------------------------------------------
-//
-// Author: Jyrki Alakuijala (jyrki@google.com)
-//
-// Models the histograms of literal and distance codes.
-
-#ifndef WEBP_ENC_HISTOGRAM_H_
-#define WEBP_ENC_HISTOGRAM_H_
-
-#include <assert.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "./backward_references.h"
-#include "../format_constants.h"
-#include "../types.h"
-
-#if defined(__cplusplus) || defined(c_plusplus)
-extern "C" {
-#endif
-
-// A simple container for histograms of data.
-typedef struct {
-  // literal_ contains green literal, palette-code and
-  // copy-length-prefix histogram
-  int literal_[PIX_OR_COPY_CODES_MAX];
-  int red_[256];
-  int blue_[256];
-  int alpha_[256];
-  // Backward reference prefix-code histogram.
-  int distance_[NUM_DISTANCE_CODES];
-  int palette_code_bits_;
-  double bit_cost_;   // cached value of VP8LHistogramEstimateBits(this)
-} VP8LHistogram;
-
-// Collection of histograms with fixed capacity, allocated as one
-// big memory chunk. Can be destroyed by simply calling 'free()'.
-typedef struct {
-  int size;         // number of slots currently in use
-  int max_size;     // maximum capacity
-  VP8LHistogram** histograms;
-} VP8LHistogramSet;
-
-// Create the histogram.
-//
-// The input data is the PixOrCopy data, which models the literals, stop
-// codes and backward references (both distances and lengths).  Also: if
-// palette_code_bits is >= 0, initialize the histogram with this value.
-void VP8LHistogramCreate(VP8LHistogram* const p,
-                         const VP8LBackwardRefs* const refs,
-                         int palette_code_bits);
-
-// Set the palette_code_bits and reset the stats.
-void VP8LHistogramInit(VP8LHistogram* const p, int palette_code_bits);
-
-// Collect all the references into a histogram (without reset)
-void VP8LHistogramStoreRefs(const VP8LBackwardRefs* const refs,
-                            VP8LHistogram* const histo);
-
-// Allocate an array of pointer to histograms, allocated and initialized
-// using 'cache_bits'. Return NULL in case of memory error.
-VP8LHistogramSet* VP8LAllocateHistogramSet(int size, int cache_bits);
-
-// Accumulate a token 'v' into a histogram.
-void VP8LHistogramAddSinglePixOrCopy(VP8LHistogram* const histo,
-                                     const PixOrCopy* const v);
-
-// Estimate how many bits the combined entropy of literals and distance
-// approximately maps to.
-double VP8LHistogramEstimateBits(const VP8LHistogram* const p);
-
-// This function estimates the cost in bits excluding the bits needed to
-// represent the entropy code itself.
-double VP8LHistogramEstimateBitsBulk(const VP8LHistogram* const p);
-
-static WEBP_INLINE void VP8LHistogramAdd(VP8LHistogram* const p,
-                                         const VP8LHistogram* const a) {
-  int i;
-  for (i = 0; i < PIX_OR_COPY_CODES_MAX; ++i) {
-    p->literal_[i] += a->literal_[i];
-  }
-  for (i = 0; i < NUM_DISTANCE_CODES; ++i) {
-    p->distance_[i] += a->distance_[i];
-  }
-  for (i = 0; i < 256; ++i) {
-    p->red_[i] += a->red_[i];
-    p->blue_[i] += a->blue_[i];
-    p->alpha_[i] += a->alpha_[i];
-  }
-}
-
-static WEBP_INLINE int VP8LHistogramNumCodes(const VP8LHistogram* const p) {
-  return 256 + NUM_LENGTH_CODES +
-      ((p->palette_code_bits_ > 0) ? (1 << p->palette_code_bits_) : 0);
-}
-
-// Builds the histogram image.
-int VP8LGetHistoImageSymbols(int xsize, int ysize,
-                             const VP8LBackwardRefs* const refs,
-                             int quality, int histogram_bits, int cache_bits,
-                             VP8LHistogramSet* const image_in,
-                             uint16_t* const histogram_symbols);
-
-#if defined(__cplusplus) || defined(c_plusplus)
-}
-#endif
-
-#endif  // WEBP_ENC_HISTOGRAM_H_