cscg24-guacamole

CSCG 2024 Challenge 'Guacamole Mashup'
git clone https://git.sinitax.com/sinitax/cscg24-guacamole
Log | Files | Refs | sfeed.txt

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