コード例 #1
0
ファイル: DDrawCapture.cpp プロジェクト: CasperGemini/OBS
bool SetupPalette(LPDIRECTDRAWPALETTE lpDDPalette)
{
    if (!lpDDPalette)
    {
        //logOutput << CurrentTimeString() << "Detaching palette" << endl;
        g_CurrentPalette.Free();
        g_bUsePalette = false;
        return false;
    }

    logOutput << CurrentTimeString() << "initializing palette" << endl;

    DWORD caps;
    HRESULT hr;
    if (FAILED(hr = lpDDPalette->GetCaps(&caps)))
    {
        logOutput << CurrentTimeString() << "Failed to get palette caps" << endl;
        printDDrawError(hr, "SetupPalette");
        return false;
    }

    if (caps & DDPCAPS_8BITENTRIES)
    {
        logOutput << CurrentTimeString() << "8-bit index-palette used (lookup color is an index to another lookup table), not implemented" << endl;
        return false;
    }

    DWORD numEntries = 0;
    if (caps & DDPCAPS_8BIT)
        numEntries = 0x100;
    else if (caps & DDPCAPS_4BIT)
        numEntries = 0x10;
    else if (caps & DDPCAPS_2BIT)
        numEntries = 0x04;
    else if (caps & DDPCAPS_1BIT)
        numEntries = 0x02;
    else
    {
        logOutput << CurrentTimeString() << "Unrecognized palette format" << endl;
        return false;
    }

    //logOutput << CurrentTimeString() << "Trying to retrieve " << numEntries << " palette entries" << endl;

    g_CurrentPalette.Reallocate(numEntries);
    hr = lpDDPalette->GetEntries(0, 0, numEntries, g_CurrentPalette.entries);
    if (FAILED(hr))
    {
        logOutput << CurrentTimeString() << "Failed to retrieve palette entries" << endl;
        printDDrawError(hr, "SetupPalette");
        g_CurrentPalette.Free();
        return false;
    }

    g_CurrentPalette.primary_surface_palette_ref = lpDDPalette;
    g_CurrentPalette.bInitialized = true;
    g_bUsePalette = true;

    logOutput << CurrentTimeString() << "Initialized palette with " << numEntries << " color entries" << endl;

    return true;
}