| /* |
| * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "webrtc/modules/desktop_capture/rgba_color.h" |
| |
| #include "webrtc/typedefs.h" |
| |
| namespace webrtc { |
| |
| namespace { |
| |
| bool AlphaEquals(uint8_t i, uint8_t j) { |
| // On Linux and Windows 8 or early version, '0' was returned for alpha channel |
| // from capturer APIs, on Windows 10, '255' was returned. So a workaround is |
| // to treat 0 as 255. |
| return i == j || ((i == 0 || i == 255) && (j == 0 || j == 255)); |
| } |
| |
| } // namespace |
| |
| RgbaColor::RgbaColor(uint8_t blue, uint8_t green, uint8_t red, uint8_t alpha) { |
| this->blue = blue; |
| this->green = green; |
| this->red = red; |
| this->alpha = alpha; |
| } |
| |
| RgbaColor::RgbaColor(uint8_t blue, uint8_t green, uint8_t red) |
| : RgbaColor(blue, green, red, 0xff) {} |
| |
| RgbaColor::RgbaColor(const uint8_t* bgra) |
| : RgbaColor(bgra[0], bgra[1], bgra[2], bgra[3]) {} |
| |
| RgbaColor::RgbaColor(uint32_t bgra) |
| : RgbaColor(reinterpret_cast<uint8_t*>(&bgra)) {} |
| |
| bool RgbaColor::operator==(const RgbaColor& right) const { |
| return blue == right.blue && green == right.green && red == right.red && |
| AlphaEquals(alpha, right.alpha); |
| } |
| |
| bool RgbaColor::operator!=(const RgbaColor& right) const { |
| return !(*this == right); |
| } |
| |
| uint32_t RgbaColor::ToUInt32() const { |
| #if defined(WEBRTC_ARCH_LITTLE_ENDIAN) |
| return blue | (green << 8) | (red << 16) | (alpha << 24); |
| #else |
| return (blue << 24) | (green << 16) | (red << 8) | alpha; |
| #endif |
| } |
| |
| } // namespace webrtc |