text: /**
   * FreeRDP: A Remote Desktop Protocol Implementation
   * Palette (Color Table) Cache
   *
   * Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifdef HAVE_CONFIG_H
  #include "config.h"
  #endif
  
  #include <stdio.h>
  
  #include <winpr/crt.h>
  
  #include <freerdp/utils/stream.h>
  
  #include <freerdp/cache/palette.h>
  
  void update_gdi_cache_color_table(rdpContext* context, CACHE_COLOR_TABLE_ORDER* cache_color_table)
  {
  	rdpCache* cache = context->cache;
  	palette_cache_put(cache->palette, cache_color_table->cacheIndex, (void*) cache_color_table->colorTable);
  }
  
  void* palette_cache_get(rdpPaletteCache* palette_cache, UINT32 index)
  {
  	void* entry;
  
  	if (index >= palette_cache->maxEntries)
  	{
  		printf("invalid color table index: 0x%04X\n", index);
  		return NULL;
  	}
  
  	entry = palette_cache->entries[index].entry;
  
  	if (entry == NULL)
  	{
  		printf("invalid color table at index: 0x%04X\n", index);
  		return NULL;
  	}
  
  	return entry;
  }
  
  void palette_cache_put(rdpPaletteCache* palette_cache, UINT32 index, void* entry)
  {
  	if (index >= palette_cache->maxEntries)
  	{
  		printf("invalid color table index: 0x%04X\n", index);
  		return;
  	}
  
  	palette_cache->entries[index].entry = entry;
  }
  
  void palette_cache_register_callbacks(rdpUpdate* update)
  {
  	update->secondary->CacheColorTable = update_gdi_cache_color_table;
  }
  
  rdpPaletteCache* palette_cache_new(rdpSettings* settings)
  {
  	rdpPaletteCache* palette_cache;
  
  	palette_cache = (rdpPaletteCache*) malloc(sizeof(rdpPaletteCache));
  	ZeroMemory(palette_cache, sizeof(rdpPaletteCache));
  
  	if (palette_cache != NULL)
  	{
  		palette_cache->settings = settings;
  		palette_cache->maxEntries = 6;
  		palette_cache->entries = (PALETTE_TABLE_ENTRY*) malloc(sizeof(PALETTE_TABLE_ENTRY) * palette_cache->maxEntries);
  		ZeroMemory(palette_cache->entries, sizeof(PALETTE_TABLE_ENTRY) * palette_cache->maxEntries);
  	}
  
  	return palette_cache;
  }
  
  void palette_cache_free(rdpPaletteCache* palette_cache)
  {
  	if (palette_cache != NULL)
  	{
  		free(palette_cache->entries);
  		free(palette_cache);
  	}
  }
  
  