FreeRDP/libfreerdp-rfx/rfx_pool.c
2011-08-10 17:09:11 +08:00

113 lines
2.1 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol client.
* RemoteFX Codec Library - Memory Pool
*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <freerdp/utils/memory.h>
#include "rfx_pool.h"
RFX_POOL* rfx_pool_new()
{
RFX_POOL* pool;
pool = xnew(RFX_POOL);
pool->size = 64;
pool->tiles = (RFX_TILE**) xzalloc(sizeof(RFX_TILE*) * pool->size);
return pool;
}
void rfx_pool_free(RFX_POOL* pool)
{
int i;
RFX_TILE* tile;
for (i = 0; i < pool->count; i++)
{
tile = pool->tiles[i];
if (tile != NULL)
{
if (tile->data != NULL)
xfree(tile->data);
xfree(tile);
}
}
xfree(pool->tiles);
xfree(pool);
}
void rfx_pool_put_tile(RFX_POOL* pool, RFX_TILE* tile)
{
if (pool->count >= pool->size)
{
pool->size *= 2;
pool->tiles = (RFX_TILE**) xrealloc((void*) pool->tiles, sizeof(RFX_TILE*) * pool->size);
}
pool->tiles[(pool->count)++] = tile;
}
RFX_TILE* rfx_pool_get_tile(RFX_POOL* pool)
{
RFX_TILE* tile;
if (pool->count < 1)
{
tile = xnew(RFX_TILE);
tile->data = (uint8*) xmalloc(4096 * 4); /* 64x64 * 4 */
}
else
{
tile = pool->tiles[--(pool->count)];
}
return tile;
}
void rfx_pool_put_tiles(RFX_POOL* pool, RFX_TILE** tiles, int count)
{
int i;
for (i = 0; i < count; i++)
{
rfx_pool_put_tile(pool, tiles[i]);
}
}
RFX_TILE** rfx_pool_get_tiles(RFX_POOL* pool, int count)
{
int i;
RFX_TILE** tiles;
tiles = (RFX_TILE**) xmalloc(sizeof(RFX_TILE*) * count);
for (i = 0; i < count; i++)
{
tiles[i] = rfx_pool_get_tile(pool);
}
return tiles;
}