guacamole-spice-protocol/src/guacenc/display-image-streams.c
2016-03-28 20:39:19 -07:00

82 lines
2.5 KiB
C

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 "config.h"
#include "display.h"
#include "image-stream.h"
#include "log.h"
#include <guacamole/client.h>
#include <stdlib.h>
int guacenc_display_create_image_stream(guacenc_display* display, int index,
int mask, int layer_index, const char* mimetype, int x, int y) {
/* Do not lookup / allocate if index is invalid */
if (index < 0 || index >= GUACENC_DISPLAY_MAX_STREAMS) {
guacenc_log(GUAC_LOG_WARNING, "Stream index out of bounds: %i", index);
return 1;
}
/* Free existing stream (if any) */
guacenc_image_stream_free(display->image_streams[index]);
/* Associate new stream */
guacenc_image_stream* stream = display->image_streams[index] =
guacenc_image_stream_alloc(mask, layer_index, mimetype, x, y);
/* Return zero only if stream is not NULL */
return stream == NULL;
}
guacenc_image_stream* guacenc_display_get_image_stream(
guacenc_display* display, int index) {
/* Do not lookup / allocate if index is invalid */
if (index < 0 || index >= GUACENC_DISPLAY_MAX_STREAMS) {
guacenc_log(GUAC_LOG_WARNING, "Stream index out of bounds: %i", index);
return NULL;
}
/* Return existing stream (if any) */
return display->image_streams[index];
}
int guacenc_display_free_image_stream(guacenc_display* display, int index) {
/* Do not lookup / allocate if index is invalid */
if (index < 0 || index >= GUACENC_DISPLAY_MAX_STREAMS) {
guacenc_log(GUAC_LOG_WARNING, "Stream index out of bounds: %i", index);
return 1;
}
/* Free stream (if allocated) */
guacenc_image_stream_free(display->image_streams[index]);
/* Mark stream as freed */
display->image_streams[index] = NULL;
return 0;
}