74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#include "config.h"
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#include "buffer.h"
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#include "layer.h"
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#include <stdlib.h>
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guacenc_layer* guacenc_layer_alloc() {
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/* Allocate new layer */
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guacenc_layer* layer = (guacenc_layer*) calloc(1, sizeof(guacenc_layer));
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if (layer == NULL)
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return NULL;
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/* Allocate associated buffer (width, height, and image storage) */
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layer->buffer = guacenc_buffer_alloc();
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if (layer->buffer == NULL) {
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free(layer);
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return NULL;
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}
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/* Allocate buffer for frame rendering */
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layer->frame = guacenc_buffer_alloc();
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if (layer->frame== NULL) {
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guacenc_buffer_free(layer->buffer);
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free(layer);
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return NULL;
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}
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/* Layers default to fully opaque */
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layer->opacity = 0xFF;
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/* Default parented to default layer */
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layer->parent_index = 0;
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return layer;
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}
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void guacenc_layer_free(guacenc_layer* layer) {
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/* Ignore NULL layers */
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if (layer == NULL)
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return;
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/* Free internal frame buffer */
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guacenc_buffer_free(layer->frame);
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/* Free underlying buffer */
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guacenc_buffer_free(layer->buffer);
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free(layer);
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}
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