instruction-cfill.c (1825B)
1/* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 */ 19 20#include "config.h" 21#include "display.h" 22#include "log.h" 23 24#include <guacamole/client.h> 25 26#include <stdlib.h> 27 28int guacenc_handle_cfill(guacenc_display* display, int argc, char** argv) { 29 30 /* Verify argument count */ 31 if (argc < 6) { 32 guacenc_log(GUAC_LOG_WARNING, "\"cfill\" instruction incomplete"); 33 return 1; 34 } 35 36 /* Parse arguments */ 37 int mask = atoi(argv[0]); 38 int index = atoi(argv[1]); 39 double r = atoi(argv[2]) / 255.0; 40 double g = atoi(argv[3]) / 255.0; 41 double b = atoi(argv[4]) / 255.0; 42 double a = atoi(argv[5]) / 255.0; 43 44 /* Pull buffer of requested layer/buffer */ 45 guacenc_buffer* buffer = guacenc_display_get_related_buffer(display, index); 46 if (buffer == NULL) 47 return 1; 48 49 /* Fill with RGBA color */ 50 if (buffer->cairo != NULL) { 51 cairo_set_operator(buffer->cairo, guacenc_display_cairo_operator(mask)); 52 cairo_set_source_rgba(buffer->cairo, r, g, b, a); 53 cairo_fill(buffer->cairo); 54 } 55 56 return 0; 57 58} 59