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