FreeRDP/libfreerdp-cache/pointer.c
2011-08-24 11:20:41 -04:00

90 lines
2.0 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Client
* Glyph 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.
*/
#include <freerdp/utils/stream.h>
#include <freerdp/utils/memory.h>
#include <freerdp/cache/pointer.h>
void* pointer_get(rdpPointer* pointer, uint16 index, void** extra)
{
void* entry;
if (index >= pointer->cacheSize)
{
printf("invalid pointer index:%d\n", index);
return NULL;
}
entry = pointer->entries[index].entry;
if (extra != NULL)
extra = pointer->entries[index].extra;
return entry;
}
void pointer_put(rdpPointer* pointer, uint16 index, void* entry, void* extra)
{
if (index >= pointer->cacheSize)
{
printf("invalid pointer index:%d\n", index);
return;
}
pointer->entries[index].entry = entry;
pointer->entries[index].extra = extra;
}
rdpPointer* pointer_new(rdpSettings* settings)
{
rdpPointer* pointer;
pointer = (rdpPointer*) xzalloc(sizeof(rdpPointer));
if (pointer != NULL)
{
pointer->settings = settings;
pointer->cacheSize = settings->pointer_cache_size;
pointer->entries = xzalloc(sizeof(POINTER_CACHE_ENTRY) * pointer->cacheSize);
}
return pointer;
}
void pointer_free(rdpPointer* pointer)
{
if (pointer != NULL)
{
int i;
for (i = 0; i < pointer->cacheSize; i++)
{
if (pointer->entries[i].entry != NULL)
xfree(pointer->entries[i].entry);
if (pointer->entries[i].extra != NULL)
xfree(pointer->entries[i].extra);
}
xfree(pointer->entries);
xfree(pointer);
}
}