quartz: Images in Direct3D surfaces must be top-down.

Invert images when copying to a Direct3D surface if they are provided bottom-up. Signed-off-by: Jan Schmidt <jan@centricular.com> Signed-off-by: Andrew Eikum <aeikum@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

quartz: Images in Direct3D surfaces must be top-down.
b5a33f02 · Jan Schmidt · Alexandre Julliard · c2d7bda8 · b5a33f02
Commit b5a33f02 authored Jul 20, 2016 by Jan Schmidt Committed by Alexandre Julliard Jul 21, 2016
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vmr9.c dlls/quartz/vmr9.c +11 -1

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--- a/dlls/quartz/vmr9.c
+++ b/dlls/quartz/vmr9.c
@@ -255,7 +255,17 @@ static DWORD VMR9_SendSampleData(struct quartz_vmr *This, VMR9PresentationInfo *
        return hr;
    }

-    if (lock.Pitch != width * bmiHeader->biBitCount / 8)
+    if (height > 0) {
+        /* Bottom up image needs inverting */
+        lock.pBits = (char *)lock.pBits + (height * lock.Pitch);
+        while (height--)
+        {
+            memcpy(lock.pBits, data, width * bmiHeader->biBitCount / 8);
+            data = data + width * bmiHeader->biBitCount / 8;
+            lock.pBits = (char *)lock.pBits - lock.Pitch;
+        }
+    }
+    else if (lock.Pitch != width * bmiHeader->biBitCount / 8)
    {
        WARN("Slow path! %u/%u\n", lock.Pitch, width * bmiHeader->biBitCount/8);