gstreamer/sys/d3d11/gstd3d11bufferpool.c
Seungha Yang f35eeaa02b d3d11: Don't hold staging texture
Staging texture is used for memory transfer between system and
gpu memory. Apart from d3d11{upload,download} elements, however,
it should happen very rarely.

Before this commit, d3d11bufferpool was allocating at least one
staging texture in order to calculate cpu accessible memory size,
and it wasn't freed for later use of the texture unconditionally.
But it will increase system memory usage. Although GstD3D11memory
object is implemented so that support CPU access, most memory
transfer will happen in d3d11{upload,download} elements.

By this commit, the initial staging texture will be freed immediately
once cpu accessible memory size is calculated.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1627>
2020-10-04 15:44:03 +00:00

401 lines
12 KiB
C

/* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstd3d11bufferpool.h"
#include "gstd3d11memory.h"
#include "gstd3d11device.h"
#include "gstd3d11utils.h"
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_d3d11_buffer_pool_debug);
#define GST_CAT_DEFAULT gst_d3d11_buffer_pool_debug
struct _GstD3D11BufferPoolPrivate
{
GstD3D11Device *device;
GstD3D11Allocator *allocator;
gboolean add_videometa;
GstD3D11AllocationParams *d3d11_params;
gint stride[GST_VIDEO_MAX_PLANES];
gsize size[GST_VIDEO_MAX_PLANES];
gsize offset[GST_VIDEO_MAX_PLANES];
};
#define gst_d3d11_buffer_pool_parent_class parent_class
G_DEFINE_TYPE_WITH_PRIVATE (GstD3D11BufferPool,
gst_d3d11_buffer_pool, GST_TYPE_BUFFER_POOL);
static void gst_d3d11_buffer_pool_dispose (GObject * object);
static const gchar **gst_d3d11_buffer_pool_get_options (GstBufferPool * pool);
static gboolean gst_d3d11_buffer_pool_set_config (GstBufferPool * pool,
GstStructure * config);
static GstFlowReturn gst_d3d11_buffer_pool_alloc (GstBufferPool * pool,
GstBuffer ** buffer, GstBufferPoolAcquireParams * params);
static void gst_d3d11_buffer_pool_flush_start (GstBufferPool * pool);
static void gst_d3d11_buffer_pool_flush_stop (GstBufferPool * pool);
static void
gst_d3d11_buffer_pool_class_init (GstD3D11BufferPoolClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBufferPoolClass *bufferpool_class = GST_BUFFER_POOL_CLASS (klass);
gobject_class->dispose = gst_d3d11_buffer_pool_dispose;
bufferpool_class->get_options = gst_d3d11_buffer_pool_get_options;
bufferpool_class->set_config = gst_d3d11_buffer_pool_set_config;
bufferpool_class->alloc_buffer = gst_d3d11_buffer_pool_alloc;
bufferpool_class->flush_start = gst_d3d11_buffer_pool_flush_start;
bufferpool_class->flush_stop = gst_d3d11_buffer_pool_flush_stop;
GST_DEBUG_CATEGORY_INIT (gst_d3d11_buffer_pool_debug, "d3d11bufferpool", 0,
"d3d11bufferpool object");
}
static void
gst_d3d11_buffer_pool_init (GstD3D11BufferPool * self)
{
self->priv = gst_d3d11_buffer_pool_get_instance_private (self);
}
static void
gst_d3d11_buffer_pool_dispose (GObject * object)
{
GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (object);
GstD3D11BufferPoolPrivate *priv = self->priv;
if (priv->d3d11_params)
gst_d3d11_allocation_params_free (priv->d3d11_params);
priv->d3d11_params = NULL;
gst_clear_object (&priv->device);
gst_clear_object (&priv->allocator);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static const gchar **
gst_d3d11_buffer_pool_get_options (GstBufferPool * pool)
{
/* NOTE: d3d11 memory does not support alignment */
static const gchar *options[] = { GST_BUFFER_POOL_OPTION_VIDEO_META, NULL };
return options;
}
static gboolean
gst_d3d11_buffer_pool_set_config (GstBufferPool * pool, GstStructure * config)
{
GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
GstD3D11BufferPoolPrivate *priv = self->priv;
GstVideoInfo info;
GstCaps *caps = NULL;
guint min_buffers, max_buffers;
GstAllocator *allocator = NULL;
gboolean ret = TRUE;
D3D11_TEXTURE2D_DESC *desc;
GstBuffer *staging_buffer;
gint i;
if (!gst_buffer_pool_config_get_params (config, &caps, NULL, &min_buffers,
&max_buffers))
goto wrong_config;
if (caps == NULL)
goto no_caps;
/* now parse the caps from the config */
if (!gst_video_info_from_caps (&info, caps))
goto wrong_caps;
GST_LOG_OBJECT (pool, "%dx%d, caps %" GST_PTR_FORMAT, info.width, info.height,
caps);
if (!gst_buffer_pool_config_get_allocator (config, &allocator, NULL))
goto wrong_config;
gst_clear_object (&priv->allocator);
if (allocator) {
if (!GST_IS_D3D11_ALLOCATOR (allocator)) {
goto wrong_allocator;
} else {
priv->allocator = gst_object_ref (allocator);
}
} else {
priv->allocator = gst_d3d11_allocator_new (priv->device);
g_assert (priv->allocator);
}
priv->add_videometa = gst_buffer_pool_config_has_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
if (priv->d3d11_params)
gst_d3d11_allocation_params_free (priv->d3d11_params);
priv->d3d11_params =
gst_buffer_pool_config_get_d3d11_allocation_params (config);
if (!priv->d3d11_params) {
/* allocate memory with resource format by default */
priv->d3d11_params =
gst_d3d11_allocation_params_new (priv->device, &info, 0, 0);
}
desc = priv->d3d11_params->desc;
/* resolution of semi-planar formats must be multiple of 2 */
if (desc[0].Format == DXGI_FORMAT_NV12 || desc[0].Format == DXGI_FORMAT_P010
|| desc[0].Format == DXGI_FORMAT_P016) {
if (desc[0].Width % 2 || desc[0].Height % 2) {
gint width, height;
GstVideoAlignment align;
GST_WARNING_OBJECT (self, "Resolution %dx%d is not mutiple of 2, fixing",
desc[0].Width, desc[0].Height);
width = GST_ROUND_UP_2 (desc[0].Width);
height = GST_ROUND_UP_2 (desc[0].Height);
gst_video_alignment_reset (&align);
align.padding_right = width - desc[0].Width;
align.padding_bottom = height - desc[0].Height;
gst_d3d11_allocation_params_alignment (priv->d3d11_params, &align);
}
}
#ifndef GST_DISABLE_GST_DEBUG
{
GST_LOG_OBJECT (self, "Direct3D11 Allocation params");
GST_LOG_OBJECT (self, "\tD3D11AllocationFlags: 0x%x",
priv->d3d11_params->flags);
for (i = 0; GST_VIDEO_MAX_PLANES; i++) {
if (desc[i].Format == DXGI_FORMAT_UNKNOWN)
break;
GST_LOG_OBJECT (self, "\t[plane %d] %dx%d, DXGI format %d",
i, desc[i].Width, desc[i].Height, desc[i].Format);
GST_LOG_OBJECT (self, "\t[plane %d] MipLevel %d, ArraySize %d",
i, desc[i].MipLevels, desc[i].ArraySize);
GST_LOG_OBJECT (self,
"\t[plane %d] SampleDesc.Count %d, SampleDesc.Quality %d",
i, desc[i].SampleDesc.Count, desc[i].SampleDesc.Quality);
GST_LOG_OBJECT (self, "\t[plane %d] Usage %d", i, desc[i].Usage);
GST_LOG_OBJECT (self,
"\t[plane %d] BindFlags 0x%x", i, desc[i].BindFlags);
GST_LOG_OBJECT (self,
"\t[plane %d] CPUAccessFlags 0x%x", i, desc[i].CPUAccessFlags);
GST_LOG_OBJECT (self,
"\t[plane %d] MiscFlags 0x%x", i, desc[i].MiscFlags);
}
}
#endif
if ((priv->d3d11_params->flags & GST_D3D11_ALLOCATION_FLAG_TEXTURE_ARRAY)) {
guint max_array_size = 0;
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (desc[i].Format == DXGI_FORMAT_UNKNOWN)
break;
if (desc[i].ArraySize > max_array_size)
max_array_size = desc[i].ArraySize;
}
if (max_buffers == 0 || max_buffers > max_array_size) {
GST_WARNING_OBJECT (pool,
"Array pool is requested but allowed pool size %d > ArraySize %d",
max_buffers, max_array_size);
max_buffers = max_array_size;
}
}
staging_buffer = gst_d3d11_allocate_staging_buffer (priv->allocator,
&info, priv->d3d11_params->d3d11_format, priv->d3d11_params->desc, TRUE);
if (!staging_buffer) {
GST_ERROR_OBJECT (pool, "Couldn't allocated staging buffer");
return FALSE;
} else {
GstVideoMeta *meta = gst_buffer_get_video_meta (staging_buffer);
if (!meta) {
GST_ERROR_OBJECT (pool, "Buffer doesn't have video meta");
gst_buffer_unref (staging_buffer);
return FALSE;
}
for (i = 0; i < gst_buffer_n_memory (staging_buffer); i++) {
GstMemory *mem = gst_buffer_peek_memory (staging_buffer, i);
priv->size[i] = gst_memory_get_sizes (mem, NULL, NULL);
}
memcpy (priv->offset, meta->offset, sizeof (priv->offset));
memcpy (priv->stride, meta->stride, sizeof (priv->stride));
}
self->buffer_size = gst_buffer_get_size (staging_buffer);
gst_buffer_unref (staging_buffer);
gst_buffer_pool_config_set_params (config,
caps, self->buffer_size, min_buffers, max_buffers);
return GST_BUFFER_POOL_CLASS (parent_class)->set_config (pool, config) && ret;
/* ERRORS */
wrong_config:
{
GST_WARNING_OBJECT (pool, "invalid config");
return FALSE;
}
no_caps:
{
GST_WARNING_OBJECT (pool, "no caps in config");
return FALSE;
}
wrong_caps:
{
GST_WARNING_OBJECT (pool,
"failed getting geometry from caps %" GST_PTR_FORMAT, caps);
return FALSE;
}
wrong_allocator:
{
GST_WARNING_OBJECT (pool, "Incorrect allocator type for this pool");
return FALSE;
}
}
static GstFlowReturn
gst_d3d11_buffer_pool_alloc (GstBufferPool * pool, GstBuffer ** buffer,
GstBufferPoolAcquireParams * params)
{
GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
GstD3D11BufferPoolPrivate *priv = self->priv;
GstMemory *mem;
GstBuffer *buf;
GstD3D11AllocationParams *d3d11_params = priv->d3d11_params;
GstVideoInfo *info = &d3d11_params->info;
gint i;
buf = gst_buffer_new ();
if (d3d11_params->d3d11_format->dxgi_format == DXGI_FORMAT_UNKNOWN) {
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (info); i++) {
mem = gst_d3d11_allocator_alloc (priv->allocator, &d3d11_params->desc[i],
d3d11_params->flags, priv->size[i]);
if (!mem)
goto error;
gst_buffer_append_memory (buf, mem);
}
} else {
mem = gst_d3d11_allocator_alloc (priv->allocator, &d3d11_params->desc[0],
d3d11_params->flags, priv->size[0]);
if (!mem)
goto error;
gst_buffer_append_memory (buf, mem);
}
if (priv->add_videometa) {
GST_DEBUG_OBJECT (self, "adding GstVideoMeta");
gst_buffer_add_video_meta_full (buf, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_INFO_FORMAT (info), GST_VIDEO_INFO_WIDTH (info),
GST_VIDEO_INFO_HEIGHT (info), GST_VIDEO_INFO_N_PLANES (info),
priv->offset, priv->stride);
}
*buffer = buf;
return GST_FLOW_OK;
error:
gst_buffer_unref (buf);
GST_ERROR_OBJECT (self, "cannot create texture memory");
return GST_FLOW_ERROR;
}
static void
gst_d3d11_buffer_pool_flush_start (GstBufferPool * pool)
{
GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
GstD3D11BufferPoolPrivate *priv = self->priv;
if (priv->allocator)
gst_d3d11_allocator_set_flushing (priv->allocator, TRUE);
}
static void
gst_d3d11_buffer_pool_flush_stop (GstBufferPool * pool)
{
GstD3D11BufferPool *self = GST_D3D11_BUFFER_POOL (pool);
GstD3D11BufferPoolPrivate *priv = self->priv;
if (priv->allocator)
gst_d3d11_allocator_set_flushing (priv->allocator, FALSE);
}
GstBufferPool *
gst_d3d11_buffer_pool_new (GstD3D11Device * device)
{
GstD3D11BufferPool *pool;
GstD3D11Allocator *alloc;
g_return_val_if_fail (GST_IS_D3D11_DEVICE (device), NULL);
pool = g_object_new (GST_TYPE_D3D11_BUFFER_POOL, NULL);
alloc = gst_d3d11_allocator_new (device);
pool->priv->device = gst_object_ref (device);
pool->priv->allocator = alloc;
return GST_BUFFER_POOL_CAST (pool);
}
GstD3D11AllocationParams *
gst_buffer_pool_config_get_d3d11_allocation_params (GstStructure * config)
{
GstD3D11AllocationParams *ret;
if (!gst_structure_get (config, "d3d11-allocation-params",
GST_TYPE_D3D11_ALLOCATION_PARAMS, &ret, NULL))
ret = NULL;
return ret;
}
void
gst_buffer_pool_config_set_d3d11_allocation_params (GstStructure * config,
GstD3D11AllocationParams * params)
{
g_return_if_fail (config != NULL);
g_return_if_fail (params != NULL);
gst_structure_set (config, "d3d11-allocation-params",
GST_TYPE_D3D11_ALLOCATION_PARAMS, params, NULL);
}