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vaallocator: remove runtime mapping selection

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The original idea was to select the type of mapping (either using derive images
or downloading the image) in runtime, under the assumption that both methods
shared the same memory layout (offsets and strides), because a single
GstVideoMeta is assigned by the buffer pool at allocation time. Nonetheless, in
recent hardware this assumption is invalid, raising memory access errors.

This patch removes completely the mapping type selection at runtime, using the
method selected when the allocator is configured, synced with the bufferpool
allocation.

This problem was fixed originally for iHD driver only. But now it makes sense to
remove all of it.

Original-patch-by: Mengkejiergeli Ba <mengkejiergeli.ba@intel.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5760>
This commit is contained in:
Víctor Manuel Jáquez Leal 2023-11-30 14:47:06 +01:00 committed by GStreamer Marge Bot
parent 90af9b7704
commit 6b1fba14bf
1 changed files with 4 additions and 30 deletions
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34
subprojects/gst-plugins-bad/gst-libs/gst/va/gstvaallocator.c
View file

@ -1304,7 +1304,7 @@ _clean_mem (GstVaMemory * mem)
mem->image.image_id = VA_INVALID_ID;
mem->image.buf = VA_INVALID_ID;
mem->is_derived = TRUE;
mem->is_derived = FALSE;
mem->is_dirty = FALSE;
mem->prev_mapflags = 0;
mem->mapped_data = NULL;
@ -1406,10 +1406,8 @@ static gpointer
_va_map_unlocked (GstVaMemory * mem, GstMapFlags flags)
{
GstAllocator *allocator = GST_MEMORY_CAST (mem)->allocator;
GstVideoInfo *info;
GstVaAllocator *va_allocator;
GstVaDisplay *display;
gboolean use_derived;
g_return_val_if_fail (mem->surface != VA_INVALID_ID, NULL);
g_return_val_if_fail (GST_IS_VA_ALLOCATOR (allocator), NULL);
@ -1435,36 +1433,12 @@ _va_map_unlocked (GstVaMemory * mem, GstMapFlags flags)
goto success;
}
if (va_allocator->feat_use_derived == GST_VA_FEATURE_AUTO) {
switch (gst_va_display_get_implementation (display)) {
case GST_VA_IMPLEMENTATION_INTEL_I965:
/* YUV derived images are tiled, so writing them is also
* problematic */
use_derived = va_allocator->use_derived && !((flags & GST_MAP_READ)
|| ((flags & GST_MAP_WRITE)
&& GST_VIDEO_INFO_IS_YUV (&va_allocator->info)));
break;
case GST_VA_IMPLEMENTATION_MESA_GALLIUM:
/* Reading RGB derived images, with non-standard resolutions,
* looks like tiled too. TODO(victor): fill a bug in Mesa. */
use_derived = va_allocator->use_derived && !((flags & GST_MAP_READ)
&& GST_VIDEO_INFO_IS_RGB (&va_allocator->info));
break;
default:
use_derived = va_allocator->use_derived;
break;
}
} else {
use_derived = va_allocator->use_derived;
}
mem->is_derived = va_allocator->use_derived;
info = &va_allocator->info;
if (!va_ensure_image (display, mem->surface, info, &mem->image, use_derived))
if (!va_ensure_image (display, mem->surface, &va_allocator->info, &mem->image,
va_allocator->use_derived))
return NULL;
mem->is_derived = use_derived;
if (!mem->is_derived) {
if (!va_get_image (display, mem->surface, &mem->image))
goto fail;