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d3dvideosink: Always lock the D3D surfaces in write mode

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Locking them in readonly mode can give different stride to mapping
in write mode, which then causes rendering to be broken.

Happened on all (many?) NVIDIA GPUs.

Thanks to voskater15@gmail.com for hinting at the problem.

https://bugzilla.gnome.org/show_bug.cgi?id=712809
This commit is contained in:
Sebastian Dröge 2014-07-03 19:10:26 +02:00
parent 73c40a3132
commit c134930dbe
1 changed files with 2 additions and 3 deletions
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5
sys/d3dvideosink/d3dhelpers.c
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@ -365,7 +365,6 @@ gst_d3d_surface_memory_map (GstMemory * mem, gsize maxsize, GstMapFlags flags)
{ {
GstD3DSurfaceMemory *parent; GstD3DSurfaceMemory *parent;
gpointer ret = NULL; gpointer ret = NULL;
gint d3d_flags = ((flags & GST_MAP_WRITE) == 0) ? D3DLOCK_READONLY : 0;
/* find the real parent */ /* find the real parent */
if ((parent = (GstD3DSurfaceMemory *) mem->parent) == NULL) if ((parent = (GstD3DSurfaceMemory *) mem->parent) == NULL)
@ -374,7 +373,7 @@ gst_d3d_surface_memory_map (GstMemory * mem, gsize maxsize, GstMapFlags flags)
g_mutex_lock (&parent->lock); g_mutex_lock (&parent->lock);
if (!parent->map_count if (!parent->map_count
&& IDirect3DSurface9_LockRect (parent->surface, &parent->lr, NULL, && IDirect3DSurface9_LockRect (parent->surface, &parent->lr, NULL,
d3d_flags) != D3D_OK) { 0) != D3D_OK) {
ret = NULL; ret = NULL;
goto done; goto done;
} }
@ -592,7 +591,7 @@ gst_d3dsurface_buffer_pool_alloc_buffer (GstBufferPool * bpool,
goto fallback; goto fallback;
} }
IDirect3DSurface9_LockRect (surface, &lr, NULL, D3DLOCK_READONLY); IDirect3DSurface9_LockRect (surface, &lr, NULL, 0);
if (!lr.pBits) { if (!lr.pBits) {
GST_ERROR_OBJECT (sink, "Failed to lock D3D surface"); GST_ERROR_OBJECT (sink, "Failed to lock D3D surface");
IDirect3DSurface9_Release (surface); IDirect3DSurface9_Release (surface);