FreeRDP/libfreerdp-cache/offscreen.c
2011-08-04 22:43:36 -04:00

88 lines
2.0 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Client
* Offscreen Bitmap 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 "offscreen.h"
void* offscreen_get(rdpOffscreen* offscreen, uint16 index)
{
void* bitmap;
if (index > offscreen->maxEntries)
{
printf("invalid offscreen bitmap index: 0x%04X\n", index);
return NULL;
}
bitmap = offscreen->entries[index].bitmap;
if (bitmap == NULL)
{
printf("invalid offscreen bitmap at index: 0x%04X\n", index);
return NULL;
}
return bitmap;
}
void offscreen_put(rdpOffscreen* offscreen, uint16 index, void* bitmap)
{
if (index > offscreen->maxEntries)
{
printf("invalid offscreen bitmap index: 0x%04X\n", index);
return;
}
offscreen->entries[index].bitmap = bitmap;
}
rdpOffscreen* offscreen_new(rdpSettings* settings)
{
rdpOffscreen* offscreen;
offscreen = (rdpOffscreen*) xzalloc(sizeof(rdpOffscreen));
if (offscreen != NULL)
{
offscreen->settings = settings;
offscreen->maxSize = 7680;
offscreen->maxEntries = 100;
settings->offscreen_bitmap_cache = True;
settings->offscreen_bitmap_cache_size = offscreen->maxSize;
settings->offscreen_bitmap_cache_entries = offscreen->maxEntries;
offscreen->entries = (OFFSCREEN_ENTRY*) xzalloc(sizeof(OFFSCREEN_ENTRY) * offscreen->maxEntries);
}
return offscreen;
}
void offscreen_free(rdpOffscreen* offscreen)
{
if (offscreen != NULL)
{
xfree(offscreen->entries);
xfree(offscreen);
}
}