| /* |
| * 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 "settings.h" |
| |
| #include <freerdp/codec/color.h> |
| #include <freerdp/freerdp.h> |
| #include <freerdp/gdi/gdi.h> |
| #include <winpr/wtypes.h> |
| |
| #include <stdint.h> |
| #include <string.h> |
| |
| UINT32 guac_rdp_get_native_pixel_format(BOOL alpha) { |
| |
| uint32_t int_value; |
| uint8_t raw_bytes[4] = { 0x0A, 0x0B, 0x0C, 0x0D }; |
| |
| memcpy(&int_value, raw_bytes, sizeof(raw_bytes)); |
| |
| /* Local platform stores bytes in decreasing order of significance |
| * (big-endian) */ |
| if (int_value == 0x0A0B0C0D) |
| return alpha ? PIXEL_FORMAT_ARGB32 : PIXEL_FORMAT_XRGB32; |
| |
| /* Local platform stores bytes in increasing order of significance |
| * (little-endian) */ |
| else |
| return alpha ? PIXEL_FORMAT_BGRA32 : PIXEL_FORMAT_BGRX32; |
| |
| } |
| |
| UINT32 guac_rdp_convert_color(rdpContext* context, UINT32 color) { |
| |
| int depth = guac_rdp_get_depth(context->instance); |
| int src_format = gdi_get_pixel_format(depth); |
| int dst_format = guac_rdp_get_native_pixel_format(TRUE); |
| rdpGdi* gdi = context->gdi; |
| |
| /* Convert provided color into the intermediate representation expected by |
| * FreeRDPConvertColor() */ |
| UINT32 intermed = ReadColor((BYTE*) &color, src_format); |
| |
| /* Convert color from RDP source format to the native format used by Cairo, |
| * still maintaining intermediate representation */ |
| #ifdef HAVE_FREERDPCONVERTCOLOR |
| intermed = FreeRDPConvertColor(intermed, src_format, dst_format, |
| &gdi->palette); |
| #else |
| intermed = ConvertColor(intermed, src_format, dst_format, &gdi->palette); |
| #endif |
| |
| /* Convert color from intermediate representation to the actual desired |
| * format */ |
| WriteColor((BYTE*) &color, dst_format, intermed); |
| return color; |
| |
| } |
| |