1 files changed, 140 insertions, 0 deletions
diff --git a/src/plugins/multimedia/windows/evr/evrhelpers.cpp b/src/plugins/multimedia/windows/evr/evrhelpers.cpp
new file mode 100644
index 000000000..bf4347c69
--- /dev/null
+++ b/src/plugins/multimedia/windows/evr/evrhelpers.cpp
@@ -0,0 +1,140 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "evrhelpers_p.h"
+
+#ifndef D3DFMT_YV12
+#define D3DFMT_YV12 (D3DFORMAT)MAKEFOURCC ('Y', 'V', '1', '2')
+#endif
+#ifndef D3DFMT_NV12
+#define D3DFMT_NV12 (D3DFORMAT)MAKEFOURCC ('N', 'V', '1', '2')
+#endif
+
+QT_BEGIN_NAMESPACE
+
+HRESULT qt_evr_getFourCC(IMFMediaType *type, DWORD *fourCC)
+{
+    if (!fourCC)
+        return E_POINTER;
+
+    HRESULT hr = S_OK;
+    GUID guidSubType = GUID_NULL;
+
+    if (SUCCEEDED(hr))
+        hr = type->GetGUID(MF_MT_SUBTYPE, &guidSubType);
+
+    if (SUCCEEDED(hr))
+        *fourCC = guidSubType.Data1;
+
+    return hr;
+}
+
+bool qt_evr_areMediaTypesEqual(IMFMediaType *type1, IMFMediaType *type2)
+{
+    if (!type1 && !type2)
+        return true;
+    if (!type1 || !type2)
+        return false;
+
+    DWORD dwFlags = 0;
+    HRESULT hr = type1->IsEqual(type2, &dwFlags);
+
+    return (hr == S_OK);
+}
+
+HRESULT qt_evr_validateVideoArea(const MFVideoArea& area, UINT32 width, UINT32 height)
+{
+    float fOffsetX = qt_evr_MFOffsetToFloat(area.OffsetX);
+    float fOffsetY = qt_evr_MFOffsetToFloat(area.OffsetY);
+
+    if ( ((LONG)fOffsetX + area.Area.cx > (LONG)width) ||
+         ((LONG)fOffsetY + area.Area.cy > (LONG)height) ) {
+        return MF_E_INVALIDMEDIATYPE;
+    }
+    return S_OK;
+}
+
+bool qt_evr_isSampleTimePassed(IMFClock *clock, IMFSample *sample)
+{
+    if (!sample || !clock)
+        return false;
+
+    HRESULT hr = S_OK;
+    MFTIME hnsTimeNow = 0;
+    MFTIME hnsSystemTime = 0;
+    MFTIME hnsSampleStart = 0;
+    MFTIME hnsSampleDuration = 0;
+
+    hr = clock->GetCorrelatedTime(0, &hnsTimeNow, &hnsSystemTime);
+
+    if (SUCCEEDED(hr))
+        hr = sample->GetSampleTime(&hnsSampleStart);
+
+    if (SUCCEEDED(hr))
+        hr = sample->GetSampleDuration(&hnsSampleDuration);
+
+    if (SUCCEEDED(hr)) {
+        if (hnsSampleStart + hnsSampleDuration < hnsTimeNow)
+            return true;
+    }
+
+    return false;
+}
+
+QVideoFrameFormat::PixelFormat qt_evr_pixelFormatFromD3DFormat(DWORD format)
+{
+    switch (format) {
+    case D3DFMT_A8R8G8B8:
+        return QVideoFrameFormat::Format_BGRA8888;
+    case D3DFMT_X8R8G8B8:
+        return QVideoFrameFormat::Format_BGRX8888;
+    case D3DFMT_A8:
+        return QVideoFrameFormat::Format_Y8;
+    case D3DFMT_A8B8G8R8:
+        return QVideoFrameFormat::Format_RGBA8888;
+    case D3DFMT_X8B8G8R8:
+        return QVideoFrameFormat::Format_RGBX8888;
+    case D3DFMT_UYVY:
+        return QVideoFrameFormat::Format_UYVY;
+    case D3DFMT_YUY2:
+        return QVideoFrameFormat::Format_YUYV;
+    case D3DFMT_NV12:
+        return QVideoFrameFormat::Format_NV12;
+    case D3DFMT_YV12:
+        return QVideoFrameFormat::Format_YV12;
+    case D3DFMT_UNKNOWN:
+    default:
+        return QVideoFrameFormat::Format_Invalid;
+    }
+}
+
+D3DFORMAT qt_evr_D3DFormatFromPixelFormat(QVideoFrameFormat::PixelFormat format)
+{
+    switch (format) {
+    case QVideoFrameFormat::Format_ARGB8888:
+        return D3DFMT_A8B8G8R8;
+    case QVideoFrameFormat::Format_BGRA8888:
+        return D3DFMT_A8R8G8B8;
+    case QVideoFrameFormat::Format_BGRX8888:
+        return D3DFMT_X8R8G8B8;
+    case QVideoFrameFormat::Format_Y8:
+        return D3DFMT_A8;
+    case QVideoFrameFormat::Format_RGBA8888:
+        return D3DFMT_A8B8G8R8;
+    case QVideoFrameFormat::Format_RGBX8888:
+        return D3DFMT_X8B8G8R8;
+    case QVideoFrameFormat::Format_UYVY:
+        return D3DFMT_UYVY;
+    case QVideoFrameFormat::Format_YUYV:
+        return D3DFMT_YUY2;
+    case QVideoFrameFormat::Format_NV12:
+        return D3DFMT_NV12;
+    case QVideoFrameFormat::Format_YV12:
+        return D3DFMT_YV12;
+    case QVideoFrameFormat::Format_Invalid:
+    default:
+        return D3DFMT_UNKNOWN;
+    }
+}
+
+QT_END_NAMESPACE