| /* |
| * 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. |
| */ |
| |
| #ifndef GUAC_RDP_COLOR_H |
| #define GUAC_RDP_COLOR_H |
| |
| #include <freerdp/freerdp.h> |
| #include <winpr/wtypes.h> |
| |
| /** |
| * Returns the FreeRDP pixel format ID corresponding to the 32-bit RGB format |
| * used by the Cairo library's image surfaces. Cairo handles colors in terms of |
| * integers in native endianness, with CAIRO_FORMAT_ARGB32 representing a color |
| * format where the alpha channel is stored in the most significant byte, |
| * followed by red, green, and blue. FreeRDP handles colors in terms of |
| * absolute byte order, with PIXEL_FORMAT_ARGB32 representing a color format |
| * where the alpha channel is in byte 0, followed by red at byte 1, etc. |
| * |
| * @param alpha |
| * TRUE if the returned FreeRDP pixel format should correspond to Cairo's |
| * CAIRO_FORMAT_ARGB32, FALSE if the returned format should correspond to |
| * Cairo's CAIRO_FORMAT_RGB24. |
| * |
| * @return |
| * The FreeRDP pixel format ID that corresponds to the 32-bit RGB format |
| * used by the Cairo library. |
| */ |
| UINT32 guac_rdp_get_native_pixel_format(BOOL alpha); |
| |
| /** |
| * Converts the given color to ARGB32. The color given may be an index |
| * referring to the palette, a 16-bit or 32-bit color, etc. all depending on |
| * the current color depth of the RDP session. |
| * |
| * @param context |
| * The rdpContext associated with the current RDP session. |
| * |
| * @param color |
| * A color value in the format of the current RDP session. |
| * |
| * @return |
| * A 32-bit ARGB color, where the low 8 bits are the blue component and |
| * the high 8 bits are alpha. |
| */ |
| UINT32 guac_rdp_convert_color(rdpContext* context, UINT32 color); |
| |
| #endif |
| |