libwebp: update to 0.5.0

third_party/libwebp/enc/config.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.
 // -----------------------------------------------------------------------------
 //
 // Coding tools configuration
@@ skipping 25 matching lines @@
   config->segments = 4;
   config->pass = 1;
   config->show_compressed = 0;
   config->preprocessing = 0;
   config->autofilter = 0;
   config->partition_limit = 0;
   config->alpha_compression = 1;
   config->alpha_filtering = 1;
   config->alpha_quality = 100;
   config->lossless = 0;
+  config->exact = 0;
   config->image_hint = WEBP_HINT_DEFAULT;
   config->emulate_jpeg_size = 0;
   config->thread_level = 0;
   config->low_memory = 0;
+  config->near_lossless = 100;
+#ifdef WEBP_EXPERIMENTAL_FEATURES
+  config->delta_palettization = 0;
+#endif // WEBP_EXPERIMENTAL_FEATURES
 
   // TODO(skal): tune.
   switch (preset) {
     case WEBP_PRESET_PICTURE:
       config->sns_strength = 80;
       config->filter_sharpness = 4;
       config->filter_strength = 35;
       config->preprocessing &= ~2;   // no dithering
       break;
     case WEBP_PRESET_PHOTO:
@@ skipping 44 matching lines @@
   if (config->filter_sharpness < 0 || config->filter_sharpness > 7)
     return 0;
   if (config->filter_type < 0 || config->filter_type > 1)
     return 0;
   if (config->autofilter < 0 || config->autofilter > 1)
     return 0;
   if (config->pass < 1 || config->pass > 10)
     return 0;
   if (config->show_compressed < 0 || config->show_compressed > 1)
     return 0;
-#if WEBP_ENCODER_ABI_VERSION > 0x0204
   if (config->preprocessing < 0 || config->preprocessing > 7)
-#else
-  if (config->preprocessing < 0 || config->preprocessing > 3)
-#endif
     return 0;
   if (config->partitions < 0 || config->partitions > 3)
     return 0;
   if (config->partition_limit < 0 || config->partition_limit > 100)
     return 0;
   if (config->alpha_compression < 0)
     return 0;
   if (config->alpha_filtering < 0)
     return 0;
   if (config->alpha_quality < 0 || config->alpha_quality > 100)
     return 0;
   if (config->lossless < 0 || config->lossless > 1)
     return 0;
+  if (config->near_lossless < 0 || config->near_lossless > 100)
+    return 0;
   if (config->image_hint >= WEBP_HINT_LAST)
     return 0;
   if (config->emulate_jpeg_size < 0 || config->emulate_jpeg_size > 1)
     return 0;
   if (config->thread_level < 0 || config->thread_level > 1)
     return 0;
   if (config->low_memory < 0 || config->low_memory > 1)
     return 0;
+  if (config->exact < 0 || config->exact > 1)
+    return 0;
+#ifdef WEBP_EXPERIMENTAL_FEATURES
+  if (config->delta_palettization < 0 || config->delta_palettization > 1)
+    return 0;
+#endif  // WEBP_EXPERIMENTAL_FEATURES
   return 1;
 }
 
 //------------------------------------------------------------------------------
 
-#if WEBP_ENCODER_ABI_VERSION > 0x0202
 #define MAX_LEVEL 9
 
 // Mapping between -z level and -m / -q parameter settings.
 static const struct {
   uint8_t method_;
   uint8_t quality_;
 } kLosslessPresets[MAX_LEVEL + 1] = {
   { 0,  0 }, { 1, 20 }, { 2, 25 }, { 3, 30 }, { 3, 50 },
   { 4, 50 }, { 4, 75 }, { 4, 90 }, { 5, 90 }, { 6, 100 }
 };
 
 int WebPConfigLosslessPreset(WebPConfig* config, int level) {
   if (config == NULL || level < 0 || level > MAX_LEVEL) return 0;
   config->lossless = 1;
   config->method = kLosslessPresets[level].method_;
   config->quality = kLosslessPresets[level].quality_;
   return 1;
 }
-#endif
 
 //------------------------------------------------------------------------------