104 lines
3.2 KiB
C
104 lines
3.2 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 "display.h"
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#include "log.h"
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#include <guacamole/client.h>
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#include <stdlib.h>
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int guacenc_handle_copy(guacenc_display* display, int argc, char** argv) {
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/* Verify argument count */
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if (argc < 9) {
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guacenc_log(GUAC_LOG_WARNING, "\"copy\" instruction incomplete");
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return 1;
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}
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/* Parse arguments */
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int sindex = atoi(argv[0]);
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int sx = atoi(argv[1]);
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int sy = atoi(argv[2]);
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int width = atoi(argv[3]);
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int height = atoi(argv[4]);
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int mask = atoi(argv[5]);
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int dindex = atoi(argv[6]);
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int dx = atoi(argv[7]);
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int dy = atoi(argv[8]);
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/* Pull buffer of source layer/buffer */
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guacenc_buffer* src = guacenc_display_get_related_buffer(display, sindex);
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if (src == NULL)
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return 1;
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/* Pull buffer of destination layer/buffer */
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guacenc_buffer* dst = guacenc_display_get_related_buffer(display, dindex);
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if (dst == NULL)
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return 1;
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/* Expand the destination buffer as necessary to fit the draw operation */
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if (dst->autosize)
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guacenc_buffer_fit(dst, dx + width, dy + height);
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/* Copy rectangle from source to destination */
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if (src->surface != NULL && dst->cairo != NULL) {
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/* If surfaces are different, no need to copy */
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cairo_surface_t* surface;
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if (src != dst)
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surface = src->surface;
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/* Otherwise, copy to a temporary surface */
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else {
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/* Create new surface to hold the source rect */
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surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
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width, height);
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/* Copy relevant rectangle from source surface */
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cairo_t* cairo = cairo_create(surface);
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cairo_set_operator(cairo, CAIRO_OPERATOR_SOURCE);
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cairo_set_source_surface(cairo, src->surface, -sx, -sy);
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cairo_paint(cairo);
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cairo_destroy(cairo);
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/* Source coordinates are now (0, 0) */
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sx = sy = 0;
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}
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/* Perform copy */
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cairo_set_operator(dst->cairo, guacenc_display_cairo_operator(mask));
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cairo_set_source_surface(dst->cairo, surface, dx - sx, dy - sy);
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cairo_rectangle(dst->cairo, dx, dy, width, height);
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cairo_fill(dst->cairo);
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/* Destroy temporary surface if it was created */
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if (surface != src->surface)
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cairo_surface_destroy(surface);
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}
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return 0;
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}
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