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/**
* 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/log.h>
#include <freerdp/cache/palette.h>
#include "palette.h"
#define TAG FREERDP_TAG("cache.palette")
static void* palette_cache_get(rdpPaletteCache* palette, UINT32 index);
static void palette_cache_put(rdpPaletteCache* palette, UINT32 index, void* entry);
static BOOL update_gdi_cache_color_table(rdpContext* context,
const CACHE_COLOR_TABLE_ORDER* cacheColorTable)
{
UINT32* colorTable;
rdpCache* cache = context->cache;
colorTable = (UINT32*) malloc(sizeof(UINT32) * 256);
if (!colorTable)
return FALSE;
CopyMemory(colorTable, cacheColorTable->colorTable, sizeof(UINT32) * 256);
palette_cache_put(cache->palette, cacheColorTable->cacheIndex, (void*) colorTable);
return TRUE;
}
void* palette_cache_get(rdpPaletteCache* paletteCache, UINT32 index)
{
void* entry;
if (index >= paletteCache->maxEntries)
{
WLog_ERR(TAG, "invalid color table index: 0x%08"PRIX32"", index);
return NULL;
}
entry = paletteCache->entries[index].entry;
if (!entry)
{
WLog_ERR(TAG, "invalid color table at index: 0x%08"PRIX32"", index);
return NULL;
}
return entry;
}
void palette_cache_put(rdpPaletteCache* paletteCache, UINT32 index, void* entry)
{
if (index >= paletteCache->maxEntries)
{
WLog_ERR(TAG, "invalid color table index: 0x%08"PRIX32"", index);
free(entry);
return;
}
free(paletteCache->entries[index].entry);
paletteCache->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* paletteCache;
paletteCache = (rdpPaletteCache*) calloc(1, sizeof(rdpPaletteCache));
if (paletteCache)
{
paletteCache->settings = settings;
paletteCache->maxEntries = 6;
paletteCache->entries = (PALETTE_TABLE_ENTRY*) calloc(paletteCache->maxEntries,
sizeof(PALETTE_TABLE_ENTRY));
}
return paletteCache;
}
void palette_cache_free(rdpPaletteCache* paletteCache)
{
if (paletteCache)
{
UINT32 i;
for (i = 0; i < paletteCache->maxEntries; i++)
free(paletteCache->entries[i].entry);
free(paletteCache->entries);
free(paletteCache);
}
}
void free_palette_update(rdpContext* context, PALETTE_UPDATE* pointer)
{
free(pointer);
}
PALETTE_UPDATE* copy_palette_update(rdpContext* context, const PALETTE_UPDATE* pointer)
{
PALETTE_UPDATE* dst = calloc(1, sizeof(PALETTE_UPDATE));
if (!dst || !pointer)
goto fail;
*dst = *pointer;
return dst;
fail:
free_palette_update(context, dst);
return NULL;
}
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