| /* |
| * 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 "buffer.h" |
| #include "layer.h" |
| |
| #include <stdlib.h> |
| |
| guacenc_layer* guacenc_layer_alloc() { |
| |
| /* Allocate new layer */ |
| guacenc_layer* layer = (guacenc_layer*) calloc(1, sizeof(guacenc_layer)); |
| if (layer == NULL) |
| return NULL; |
| |
| /* Allocate associated buffer (width, height, and image storage) */ |
| layer->buffer = guacenc_buffer_alloc(); |
| if (layer->buffer == NULL) { |
| free(layer); |
| return NULL; |
| } |
| |
| /* Allocate buffer for frame rendering */ |
| layer->frame = guacenc_buffer_alloc(); |
| if (layer->frame== NULL) { |
| guacenc_buffer_free(layer->buffer); |
| free(layer); |
| return NULL; |
| } |
| |
| /* Layers default to fully opaque */ |
| layer->opacity = 0xFF; |
| |
| /* Default parented to default layer */ |
| layer->parent_index = 0; |
| |
| return layer; |
| |
| } |
| |
| void guacenc_layer_free(guacenc_layer* layer) { |
| |
| /* Ignore NULL layers */ |
| if (layer == NULL) |
| return; |
| |
| /* Free internal frame buffer */ |
| guacenc_buffer_free(layer->frame); |
| |
| /* Free underlying buffer */ |
| guacenc_buffer_free(layer->buffer); |
| |
| free(layer); |
| |
| } |
| |