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Fix: eliminate extra screen restarts on connection init

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Two changes to reduce unnecessary CScreenSpy restarts when connecting:

1. Client (ScreenManager.cpp): Initialize CScreenSpy with bitrate from
   the locally-saved quality profile, so CMD_QUALITY_LEVEL arriving from
   the server (same bitrate as default) hits SetBitRate(3000)==3000 and
   skips the restart instead of comparing against the hard-coded 0.
   Also fixes QualityLevel init to use the already-computed `quality`
   variable (which honours the QUALITY_DISABLED override when algo!=NUL)
   rather than re-reading the cfg key a second time.

2. Server (ScreenSpyDlg.cpp): Only send CMD_SCREEN_SIZE strategy=2 when
   the session is in QUALITY_ADAPTIVE mode and a cached maxWidth exists.
   Fixed quality levels already carry resolution via CMD_QUALITY_PROFILES,
   so unconditionally sending CMD_SCREEN_SIZE caused a second restart when
   the screen spy was still rebuilding from the first one.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
yuanyuanxiang
2026-06-15 22:14:06 +02:00
parent abafd673a2
commit 91d4c0a523
2 changed files with 11 additions and 6 deletions
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6
client/ScreenManager.cpp
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@@ -153,7 +153,7 @@ CScreenManager::CScreenManager(IOCPClient* ClientObject, int n, void* user, BOOL
m_ScreenSettings.FullScreen = cfg.GetInt("settings", "FullScreen", priv);
m_ScreenSettings.RemoteCursor = cfg.GetInt("settings", "RemoteCursor", 0);
m_ScreenSettings.ScrollDetectInterval = cfg.GetInt("settings", "ScrollDetectInterval", 2); // 默认每2帧
m_ScreenSettings.QualityLevel = cfg.GetInt("settings", "QualityLevel", quality);
m_ScreenSettings.QualityLevel = quality;
m_ScreenSettings.CpuSpeedup = cfg.GetInt("settings", "CpuSpeedup", 0);
m_ScreenSettings.AudioEnabled = cfg.GetInt("settings", "AudioEnabled", 0); // 默认禁用音频
m_ScreenSettings.EncodeLevel = cfg.GetInt("settings", "EncodeLevel", LEVEL_H264_SOFT);
@@ -556,6 +556,10 @@ void CScreenManager::InitScreenSpy()
m_isGDI = TRUE;
m_ScreenSpyObject = new CScreenSpy(32, algo, DXGI == USING_VIRTUAL, DEFAULT_GOP, all, m_ScreenSettings.EncodeLevel, rect, switchScreen, m_hTargetWnd, m_bDynamicForeground);
}
// 用已保存的质量配置初始化码率，避免 CMD_QUALITY_LEVEL 到达时 0→3000 触发不必要重启
if (m_ScreenSpyObject && level >= 0 && level < QUALITY_COUNT) {
m_ScreenSpyObject->SetBitRate(m_QualityProfiles[level].bitRate);
}
}
BOOL IsRunningAsSystem()