cscg24-guacamole

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

color.h (2415B)

      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#ifndef GUAC_RDP_COLOR_H
     21#define GUAC_RDP_COLOR_H
     22
     23#include <freerdp/freerdp.h>
     24#include <winpr/wtypes.h>
     25
     26/**
     27 * Returns the FreeRDP pixel format ID corresponding to the 32-bit RGB format
     28 * used by the Cairo library's image surfaces. Cairo handles colors in terms of
     29 * integers in native endianness, with CAIRO_FORMAT_ARGB32 representing a color
     30 * format where the alpha channel is stored in the most significant byte,
     31 * followed by red, green, and blue. FreeRDP handles colors in terms of
     32 * absolute byte order, with PIXEL_FORMAT_ARGB32 representing a color format
     33 * where the alpha channel is in byte 0, followed by red at byte 1, etc.
     34 *
     35 * @param alpha
     36 *     TRUE if the returned FreeRDP pixel format should correspond to Cairo's
     37 *     CAIRO_FORMAT_ARGB32, FALSE if the returned format should correspond to
     38 *     Cairo's CAIRO_FORMAT_RGB24.
     39 *
     40 * @return
     41 *     The FreeRDP pixel format ID that corresponds to the 32-bit RGB format
     42 *     used by the Cairo library.
     43 */
     44UINT32 guac_rdp_get_native_pixel_format(BOOL alpha);
     45
     46/**
     47 * Converts the given color to ARGB32. The color given may be an index
     48 * referring to the palette, a 16-bit or 32-bit color, etc. all depending on
     49 * the current color depth of the RDP session.
     50 *
     51 * @param context
     52 *     The rdpContext associated with the current RDP session.
     53 *
     54 * @param color
     55 *     A color value in the format of the current RDP session.
     56 *
     57 * @return
     58 *     A 32-bit ARGB color, where the low 8 bits are the blue component and
     59 *     the high 8 bits are alpha.
     60 */
     61UINT32 guac_rdp_convert_color(rdpContext* context, UINT32 color);
     62
     63#endif
     64