libwebp: update to 0.5.0

third_party/libwebp/enc/syntax.c

 // 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.
 // -----------------------------------------------------------------------------
 //
 // Header syntax writing
@@ skipping 168 matching lines @@
   return 1;
 
   // Error.
  Error:
   return WebPEncodingSetError(pic, err);
 }
 
 // Segmentation header
 static void PutSegmentHeader(VP8BitWriter* const bw,
                              const VP8Encoder* const enc) {
-  const VP8SegmentHeader* const hdr = &enc->segment_hdr_;
-  const VP8Proba* const proba = &enc->proba_;
+  const VP8EncSegmentHeader* const hdr = &enc->segment_hdr_;
+  const VP8EncProba* const proba = &enc->proba_;
   if (VP8PutBitUniform(bw, (hdr->num_segments_ > 1))) {
     // We always 'update' the quant and filter strength values
     const int update_data = 1;
     int s;
     VP8PutBitUniform(bw, hdr->update_map_);
     if (VP8PutBitUniform(bw, update_data)) {
       // we always use absolute values, not relative ones
       VP8PutBitUniform(bw, 1);   // (segment_feature_mode = 1. Paragraph 9.3.)
       for (s = 0; s < NUM_MB_SEGMENTS; ++s) {
-        VP8PutSignedValue(bw, enc->dqm_[s].quant_, 7);
+        VP8PutSignedBits(bw, enc->dqm_[s].quant_, 7);
       }
       for (s = 0; s < NUM_MB_SEGMENTS; ++s) {
-        VP8PutSignedValue(bw, enc->dqm_[s].fstrength_, 6);
+        VP8PutSignedBits(bw, enc->dqm_[s].fstrength_, 6);
       }
     }
     if (hdr->update_map_) {
       for (s = 0; s < 3; ++s) {
         if (VP8PutBitUniform(bw, (proba->segments_[s] != 255u))) {
-          VP8PutValue(bw, proba->segments_[s], 8);
+          VP8PutBits(bw, proba->segments_[s], 8);
         }
       }
     }
   }
 }
 
 // Filtering parameters header
 static void PutFilterHeader(VP8BitWriter* const bw,
-                            const VP8FilterHeader* const hdr) {
+                            const VP8EncFilterHeader* const hdr) {
   const int use_lf_delta = (hdr->i4x4_lf_delta_ != 0);
   VP8PutBitUniform(bw, hdr->simple_);
-  VP8PutValue(bw, hdr->level_, 6);
-  VP8PutValue(bw, hdr->sharpness_, 3);
+  VP8PutBits(bw, hdr->level_, 6);
+  VP8PutBits(bw, hdr->sharpness_, 3);
   if (VP8PutBitUniform(bw, use_lf_delta)) {
     // '0' is the default value for i4x4_lf_delta_ at frame #0.
     const int need_update = (hdr->i4x4_lf_delta_ != 0);
     if (VP8PutBitUniform(bw, need_update)) {
       // we don't use ref_lf_delta => emit four 0 bits
-      VP8PutValue(bw, 0, 4);
+      VP8PutBits(bw, 0, 4);
       // we use mode_lf_delta for i4x4
-      VP8PutSignedValue(bw, hdr->i4x4_lf_delta_, 6);
-      VP8PutValue(bw, 0, 3);    // all others unused
+      VP8PutSignedBits(bw, hdr->i4x4_lf_delta_, 6);
+      VP8PutBits(bw, 0, 3);    // all others unused
     }
   }
 }
 
 // Nominal quantization parameters
 static void PutQuant(VP8BitWriter* const bw,
                      const VP8Encoder* const enc) {
-  VP8PutValue(bw, enc->base_quant_, 7);
-  VP8PutSignedValue(bw, enc->dq_y1_dc_, 4);
-  VP8PutSignedValue(bw, enc->dq_y2_dc_, 4);
-  VP8PutSignedValue(bw, enc->dq_y2_ac_, 4);
-  VP8PutSignedValue(bw, enc->dq_uv_dc_, 4);
-  VP8PutSignedValue(bw, enc->dq_uv_ac_, 4);
+  VP8PutBits(bw, enc->base_quant_, 7);
+  VP8PutSignedBits(bw, enc->dq_y1_dc_, 4);
+  VP8PutSignedBits(bw, enc->dq_y2_dc_, 4);
+  VP8PutSignedBits(bw, enc->dq_y2_ac_, 4);
+  VP8PutSignedBits(bw, enc->dq_uv_dc_, 4);
+  VP8PutSignedBits(bw, enc->dq_uv_ac_, 4);
 }
 
 // Partition sizes
 static int EmitPartitionsSize(const VP8Encoder* const enc,
                               WebPPicture* const pic) {
   uint8_t buf[3 * (MAX_NUM_PARTITIONS - 1)];
   int p;
   for (p = 0; p < enc->num_parts_ - 1; ++p) {
     const size_t part_size = VP8BitWriterSize(enc->parts_ + p);
     if (part_size >= VP8_MAX_PARTITION_SIZE) {
@@ skipping 15 matching lines @@
 
   pos1 = VP8BitWriterPos(bw);
   if (!VP8BitWriterInit(bw, mb_size * 7 / 8)) {        // ~7 bits per macroblock
     return WebPEncodingSetError(enc->pic_, VP8_ENC_ERROR_OUT_OF_MEMORY);
   }
   VP8PutBitUniform(bw, 0);   // colorspace
   VP8PutBitUniform(bw, 0);   // clamp type
 
   PutSegmentHeader(bw, enc);
   PutFilterHeader(bw, &enc->filter_hdr_);
-  VP8PutValue(bw, enc->num_parts_ == 8 ? 3 :
-                  enc->num_parts_ == 4 ? 2 :
-                  enc->num_parts_ == 2 ? 1 : 0, 2);
+  VP8PutBits(bw, enc->num_parts_ == 8 ? 3 :
+                 enc->num_parts_ == 4 ? 2 :
+                 enc->num_parts_ == 2 ? 1 : 0, 2);
   PutQuant(bw, enc);
   VP8PutBitUniform(bw, 0);   // no proba update
   VP8WriteProbas(bw, &enc->proba_);
   pos2 = VP8BitWriterPos(bw);
   VP8CodeIntraModes(enc);
   VP8BitWriterFinish(bw);
 
   pos3 = VP8BitWriterPos(bw);
 
   if (enc->pic_->stats) {
@@ skipping 81 matching lines @@
     ok = PutPaddingByte(pic);
   }
 
   enc->coded_size_ = (int)(CHUNK_HEADER_SIZE + riff_size);
   ok = ok && WebPReportProgress(pic, final_percent, &enc->percent_);
   return ok;
 }
 
 //------------------------------------------------------------------------------