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va:allocator: Rework the func va_map_unlocked

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Rework the va_map_unlocked() after we keep mapping behavior (whether to
use derive) consistent with allocator_try stage. Also remove the flag
for iHD case because pitch/stride difference between vaCreateImage and
vaDeriveImage only possibly happen on iHD by now.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5046>
This commit is contained in:
Mengkejiergeli Ba 2023-07-26 14:58:57 +08:00 committed by GStreamer Marge Bot
parent b997f541b2
commit 809a984b91
1 changed files with 5 additions and 15 deletions
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20
subprojects/gst-plugins-bad/gst-libs/gst/va/gstvaallocator.c
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@ -1387,24 +1387,12 @@ _va_map_unlocked (GstVaMemory * mem, GstMapFlags flags)
mem->mapped_data = &mem->surface;
goto success;
}
if (va_allocator->feat_use_derived == GST_VA_FEATURE_ENABLED) {
use_derived = TRUE;
} else if (va_allocator->feat_use_derived == GST_VA_FEATURE_DISABLED) {
use_derived = FALSE;
} else {
#ifdef G_OS_WIN32
/* XXX: Derived image doesn't seem to work for D3D backend */
use_derived = FALSE;
/* XXX: Derived image doesn't seem to work for D3D backend */
use_derived = FALSE;
#else
if (va_allocator->feat_use_derived == GST_VA_FEATURE_AUTO) {
switch (gst_va_display_get_implementation (display)) {
case GST_VA_IMPLEMENTATION_INTEL_IHD:
/* On Gen7+ Intel graphics the memory is mappable but not
* cached, so normal memcpy() access is very slow to read, but
* it's ok for writing. So let's assume that users won't prefer
* direct-mapped memory if they request read access. */
use_derived = va_allocator->use_derived && !(flags & GST_MAP_READ);
break;
case GST_VA_IMPLEMENTATION_INTEL_I965:
/* YUV derived images are tiled, so writing them is also
* problematic */
@ -1422,6 +1410,8 @@ _va_map_unlocked (GstVaMemory * mem, GstMapFlags flags)
use_derived = va_allocator->use_derived;
break;
}
} else {
use_derived = va_allocator->use_derived;
}
#endif
info = &va_allocator->info;