Feat: ROI screen capture with remote control support via COMMAND_SCREEN_ROI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
yuanyuanxiang
2026-06-14 00:24:46 +02:00
parent 1335d636da
commit 63ef75b7ce
7 changed files with 102 additions and 31 deletions

View File

@@ -25,11 +25,12 @@ private:
BYTE* m_NextBuffer = nullptr;
public:
ScreenCapturerDXGI(BYTE algo, int gop = DEFAULT_GOP, BOOL all = FALSE, int level = LEVEL_H264_SOFT)
: ScreenCapture(32, algo, all, level)
ScreenCapturerDXGI(BYTE algo, int gop = DEFAULT_GOP, BOOL all = FALSE, int level = LEVEL_H264_SOFT,
RECT rc = {0}, BOOL switchScreen = TRUE)
: ScreenCapture(32, algo, all, level, rc, switchScreen)
{
m_GOP = gop;
InitDXGI(all);
InitDXGI(all, switchScreen);
Mprintf("Capture screen with DXGI: GOP= %d\n", m_GOP);
}
@@ -47,7 +48,7 @@ public:
return TRUE;
}
void InitDXGI(BOOL all)
void InitDXGI(BOOL all, BOOL switchScreen)
{
m_iScreenX = 0;
m_iScreenY = 0;
@@ -72,7 +73,7 @@ public:
// 4. 获取 DXGI 输出(屏幕)
static UINT screen = 0;
HRESULT r = dxgiAdapter->EnumOutputs(screen++, &dxgiOutput);
HRESULT r = dxgiAdapter->EnumOutputs(switchScreen ? screen++ : screen, &dxgiOutput);
if (r == DXGI_ERROR_NOT_FOUND && all) {
screen = 0;
idx ++;
@@ -148,6 +149,15 @@ public:
m_BmpZoomBuffer = new BYTE[m_BitmapInfor_Send->bmiHeader.biSizeImage * 2 + 12];
m_BmpZoomFirst = nullptr;
// ROI
int w = m_ROI.right - m_ROI.left, h = m_ROI.bottom - m_ROI.top;
if (w > 0 && h > 0) {
m_nScaleSendWidth = m_BitmapInfor_Send->bmiHeader.biWidth;
m_nScaleSendHeight = m_BitmapInfor_Send->bmiHeader.biHeight;
m_BitmapInfor_Send->bmiHeader.biWidth = w;
m_BitmapInfor_Send->bmiHeader.biHeight = h;
m_BitmapInfor_Send->bmiHeader.biSizeImage = w * h * 4;
}
break;
} while (true);
@@ -173,12 +183,15 @@ public:
virtual LPBYTE scaleBitmap(LPBYTE target, LPBYTE bitmap) override
{
if (m_ulFullWidth == m_BitmapInfor_Send->bmiHeader.biWidth && m_ulFullHeight == m_BitmapInfor_Send->bmiHeader.biHeight) {
memcpy(target, bitmap, m_BitmapInfor_Send->bmiHeader.biSizeImage);
return bitmap;
}
return ScaleBitmap(target, (uint8_t*)bitmap, m_ulFullWidth, m_ulFullHeight, m_BitmapInfor_Send->bmiHeader.biWidth,
m_BitmapInfor_Send->bmiHeader.biHeight, m_nInstructionSet);
int scaledW = m_nScaleSendWidth ? m_nScaleSendWidth : (int)m_BitmapInfor_Send->bmiHeader.biWidth;
int scaledH = m_nScaleSendHeight ? m_nScaleSendHeight : (int)m_BitmapInfor_Send->bmiHeader.biHeight;
if ((ULONG)scaledW == m_ulFullWidth && (ULONG)scaledH == m_ulFullHeight)
memcpy(target, bitmap, scaledW * scaledH * 4);
else
ScaleBitmap(target, (uint8_t*)bitmap, m_ulFullWidth, m_ulFullHeight, scaledW, scaledH, m_nInstructionSet);
if (m_nScaleSendWidth)
applyROICrop(target, target, scaledW, scaledH);
return target;
}
LPBYTE GetFirstScreenData(ULONG* ulFirstScreenLength) override