144 lines
3.4 KiB
C
144 lines
3.4 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Palette (Color Table) Cache
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*
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* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <winpr/crt.h>
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#include <freerdp/log.h>
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#include <freerdp/cache/palette.h>
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#include "palette.h"
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#define TAG FREERDP_TAG("cache.palette")
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static void* palette_cache_get(rdpPaletteCache* palette, UINT32 index);
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static void palette_cache_put(rdpPaletteCache* palette, UINT32 index, void* entry);
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static BOOL update_gdi_cache_color_table(rdpContext* context,
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const CACHE_COLOR_TABLE_ORDER* cacheColorTable)
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{
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UINT32* colorTable;
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rdpCache* cache = context->cache;
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colorTable = (UINT32*)malloc(sizeof(UINT32) * 256);
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if (!colorTable)
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return FALSE;
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CopyMemory(colorTable, cacheColorTable->colorTable, sizeof(UINT32) * 256);
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palette_cache_put(cache->palette, cacheColorTable->cacheIndex, (void*)colorTable);
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return TRUE;
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}
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void* palette_cache_get(rdpPaletteCache* paletteCache, UINT32 index)
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{
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void* entry;
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if (index >= paletteCache->maxEntries)
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{
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WLog_ERR(TAG, "invalid color table index: 0x%08" PRIX32 "", index);
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return NULL;
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}
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entry = paletteCache->entries[index].entry;
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if (!entry)
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{
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WLog_ERR(TAG, "invalid color table at index: 0x%08" PRIX32 "", index);
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return NULL;
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}
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return entry;
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}
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void palette_cache_put(rdpPaletteCache* paletteCache, UINT32 index, void* entry)
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{
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if (index >= paletteCache->maxEntries)
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{
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WLog_ERR(TAG, "invalid color table index: 0x%08" PRIX32 "", index);
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free(entry);
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return;
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}
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free(paletteCache->entries[index].entry);
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paletteCache->entries[index].entry = entry;
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}
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void palette_cache_register_callbacks(rdpUpdate* update)
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{
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update->secondary->CacheColorTable = update_gdi_cache_color_table;
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}
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rdpPaletteCache* palette_cache_new(rdpContext* context)
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{
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rdpPaletteCache* paletteCache;
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WINPR_ASSERT(context);
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paletteCache = (rdpPaletteCache*)calloc(1, sizeof(rdpPaletteCache));
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if (paletteCache)
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{
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paletteCache->context = context;
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paletteCache->maxEntries = 6;
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paletteCache->entries =
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(PALETTE_TABLE_ENTRY*)calloc(paletteCache->maxEntries, sizeof(PALETTE_TABLE_ENTRY));
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}
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return paletteCache;
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}
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void palette_cache_free(rdpPaletteCache* paletteCache)
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{
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if (paletteCache)
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{
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UINT32 i;
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for (i = 0; i < paletteCache->maxEntries; i++)
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free(paletteCache->entries[i].entry);
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free(paletteCache->entries);
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free(paletteCache);
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}
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}
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void free_palette_update(rdpContext* context, PALETTE_UPDATE* pointer)
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{
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free(pointer);
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}
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PALETTE_UPDATE* copy_palette_update(rdpContext* context, const PALETTE_UPDATE* pointer)
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{
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PALETTE_UPDATE* dst = calloc(1, sizeof(PALETTE_UPDATE));
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if (!dst || !pointer)
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goto fail;
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*dst = *pointer;
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return dst;
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fail:
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free_palette_update(context, dst);
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return NULL;
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}
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