gstreamer/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12bufferpool.cpp

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/* GStreamer
* Copyright (C) 2023 Seungha Yang <seungha@centricular.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 "gstd3d12device.h"
#include "gstd3d12bufferpool.h"
#include "gstd3d12utils.h"
GST_DEBUG_CATEGORY_STATIC (gst_d3d12_buffer_pool_debug);
#define GST_CAT_DEFAULT gst_d3d12_buffer_pool_debug
struct _GstD3D12BufferPoolPrivate
{
GstD3D12Allocator *alloc[GST_VIDEO_MAX_PLANES];
GstD3D12AllocationParams *d3d12_params;
gint stride[GST_VIDEO_MAX_PLANES];
gsize offset[GST_VIDEO_MAX_PLANES];
};
#define gst_d3d12_buffer_pool_parent_class parent_class
G_DEFINE_TYPE_WITH_PRIVATE (GstD3D12BufferPool,
gst_d3d12_buffer_pool, GST_TYPE_BUFFER_POOL);
static void gst_d3d12_buffer_pool_dispose (GObject * object);
static const gchar **gst_d3d12_buffer_pool_get_options (GstBufferPool * pool);
static gboolean gst_d3d12_buffer_pool_set_config (GstBufferPool * pool,
GstStructure * config);
static GstFlowReturn gst_d3d12_buffer_pool_alloc_buffer (GstBufferPool * pool,
GstBuffer ** buffer, GstBufferPoolAcquireParams * params);
static gboolean gst_d3d12_buffer_pool_start (GstBufferPool * pool);
static gboolean gst_d3d12_buffer_pool_stop (GstBufferPool * pool);
static void
gst_d3d12_buffer_pool_class_init (GstD3D12BufferPoolClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBufferPoolClass *bufferpool_class = GST_BUFFER_POOL_CLASS (klass);
gobject_class->dispose = gst_d3d12_buffer_pool_dispose;
bufferpool_class->get_options = gst_d3d12_buffer_pool_get_options;
bufferpool_class->set_config = gst_d3d12_buffer_pool_set_config;
bufferpool_class->alloc_buffer = gst_d3d12_buffer_pool_alloc_buffer;
bufferpool_class->start = gst_d3d12_buffer_pool_start;
bufferpool_class->stop = gst_d3d12_buffer_pool_stop;
GST_DEBUG_CATEGORY_INIT (gst_d3d12_buffer_pool_debug, "d3d12bufferpool", 0,
"d3d12bufferpool");
}
static void
gst_d3d12_buffer_pool_init (GstD3D12BufferPool * self)
{
self->priv = (GstD3D12BufferPoolPrivate *)
gst_d3d12_buffer_pool_get_instance_private (self);
}
static void
gst_d3d12_buffer_pool_clear_allocator (GstD3D12BufferPool * self)
{
GstD3D12BufferPoolPrivate *priv = self->priv;
guint i;
for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
if (priv->alloc[i]) {
gst_d3d12_allocator_set_active (priv->alloc[i], FALSE);
gst_clear_object (&priv->alloc[i]);
}
}
}
static void
gst_d3d12_buffer_pool_dispose (GObject * object)
{
GstD3D12BufferPool *self = GST_D3D12_BUFFER_POOL (object);
GstD3D12BufferPoolPrivate *priv = self->priv;
g_clear_pointer (&priv->d3d12_params, gst_d3d12_allocation_params_free);
gst_clear_object (&self->device);
gst_d3d12_buffer_pool_clear_allocator (self);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static const gchar **
gst_d3d12_buffer_pool_get_options (GstBufferPool * pool)
{
/* NOTE: d3d12 memory does not support alignment */
static const gchar *options[] =
{ GST_BUFFER_POOL_OPTION_VIDEO_META, nullptr };
return options;
}
static gboolean
gst_d3d12_buffer_pool_set_config (GstBufferPool * pool, GstStructure * config)
{
GstD3D12BufferPool *self = GST_D3D12_BUFFER_POOL (pool);
GstD3D12BufferPoolPrivate *priv = self->priv;
GstVideoInfo info;
GstCaps *caps = nullptr;
guint min_buffers, max_buffers;
gboolean ret = TRUE;
guint align = 0;
D3D12_RESOURCE_DESC *desc;
D3D12_HEAP_PROPERTIES heap_props =
CD3D12_HEAP_PROPERTIES (D3D12_HEAP_TYPE_DEFAULT);
guint plane_index = 0;
gsize mem_size = 0;
if (!gst_buffer_pool_config_get_params (config, &caps, nullptr, &min_buffers,
&max_buffers)) {
GST_WARNING_OBJECT (self, "invalid config");
return FALSE;
}
if (!caps) {
GST_WARNING_OBJECT (self, "Empty caps");
return FALSE;
}
/* now parse the caps from the config */
if (!gst_video_info_from_caps (&info, caps)) {
GST_WARNING_OBJECT (self, "Invalid caps %" GST_PTR_FORMAT, caps);
return FALSE;
}
GST_LOG_OBJECT (self, "%dx%d, caps %" GST_PTR_FORMAT, info.width, info.height,
caps);
gst_d3d12_buffer_pool_clear_allocator (self);
memset (priv->stride, 0, sizeof (priv->stride));
memset (priv->offset, 0, sizeof (priv->offset));
g_clear_pointer (&priv->d3d12_params, gst_d3d12_allocation_params_free);
priv->d3d12_params =
gst_buffer_pool_config_get_d3d12_allocation_params (config);
if (!priv->d3d12_params) {
priv->d3d12_params =
gst_d3d12_allocation_params_new (self->device,
&info, GST_D3D12_ALLOCATION_FLAG_DEFAULT,
D3D12_RESOURCE_FLAG_ALLOW_SIMULTANEOUS_ACCESS);
}
desc = priv->d3d12_params->desc;
switch (desc[0].Format) {
case DXGI_FORMAT_NV12:
case DXGI_FORMAT_P010:
case DXGI_FORMAT_P016:
align = 2;
break;
default:
break;
}
/* resolution of semi-planar formats must be multiple of 2 */
if (align != 0 && (desc[0].Width % align || desc[0].Height % align)) {
gint width, height;
GstVideoAlignment video_align;
GST_WARNING_OBJECT (self, "Resolution %" G_GUINT64_FORMAT
"x%d is not mutiple of %d, fixing", desc[0].Width, desc[0].Height,
align);
width = GST_ROUND_UP_N ((guint) desc[0].Width, align);
height = GST_ROUND_UP_N ((guint) desc[0].Height, align);
gst_video_alignment_reset (&video_align);
video_align.padding_right = width - desc[0].Width;
video_align.padding_bottom = height - desc[0].Height;
gst_d3d12_allocation_params_alignment (priv->d3d12_params, &video_align);
}
if ((priv->d3d12_params->flags & GST_D3D12_ALLOCATION_FLAG_TEXTURE_ARRAY)) {
guint max_array_size = 0;
for (guint i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (desc[i].Format == DXGI_FORMAT_UNKNOWN)
break;
if (desc[i].DepthOrArraySize > max_array_size)
max_array_size = desc[i].DepthOrArraySize;
}
if (max_buffers == 0 || max_buffers > max_array_size) {
GST_WARNING_OBJECT (self,
"Array pool is requested but allowed pool size %d > ArraySize %d",
max_buffers, max_array_size);
max_buffers = max_array_size;
}
}
for (guint i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
GstD3D12Allocator *alloc;
GstD3D12PoolAllocator *pool_alloc;
GstFlowReturn flow_ret;
GstMemory *mem = nullptr;
GstD3D12Memory *dmem;
gint stride = 0;
gsize offset = 0;
guint plane_count = 0;
if (desc[i].Format == DXGI_FORMAT_UNKNOWN)
break;
alloc =
(GstD3D12Allocator *) gst_d3d12_pool_allocator_new (self->device,
&heap_props, D3D12_HEAP_FLAG_NONE, &desc[i],
D3D12_RESOURCE_STATE_COMMON, nullptr);
if (!gst_d3d12_allocator_set_active (alloc, TRUE)) {
GST_ERROR_OBJECT (self, "Failed to activate allocator");
gst_object_unref (alloc);
return FALSE;
}
pool_alloc = GST_D3D12_POOL_ALLOCATOR (alloc);
flow_ret = gst_d3d12_pool_allocator_acquire_memory (pool_alloc, &mem);
if (flow_ret != GST_FLOW_OK) {
GST_ERROR_OBJECT (self, "Failed to allocate initial memory");
gst_d3d12_allocator_set_active (alloc, FALSE);
gst_object_unref (alloc);
return FALSE;
}
dmem = GST_D3D12_MEMORY_CAST (mem);
plane_count = gst_d3d12_memory_get_plane_count (dmem);
for (guint j = 0; j < plane_count; j++) {
if (!gst_d3d12_memory_get_plane_size (dmem, j,
nullptr, nullptr, &stride, &offset)) {
GST_ERROR_OBJECT (self, "Failed to calculate stride");
gst_d3d12_allocator_set_active (alloc, FALSE);
gst_object_unref (alloc);
gst_memory_unref (mem);
return FALSE;
}
g_assert (plane_index < GST_VIDEO_MAX_PLANES);
priv->stride[plane_index] = stride;
priv->offset[plane_index] = offset;
plane_index++;
}
priv->alloc[i] = alloc;
mem_size += mem->size;
gst_memory_unref (mem);
}
gst_buffer_pool_config_set_params (config,
caps, mem_size, min_buffers, max_buffers);
return GST_BUFFER_POOL_CLASS (parent_class)->set_config (pool, config) && ret;
}
static GstFlowReturn
gst_d3d12_buffer_pool_fill_buffer (GstD3D12BufferPool * self, GstBuffer * buf)
{
GstD3D12BufferPoolPrivate *priv = self->priv;
GstFlowReturn ret = GST_FLOW_OK;
guint i;
for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
GstMemory *mem = nullptr;
GstD3D12PoolAllocator *alloc = GST_D3D12_POOL_ALLOCATOR (priv->alloc[i]);
if (!alloc)
break;
ret = gst_d3d12_pool_allocator_acquire_memory (alloc, &mem);
if (ret != GST_FLOW_OK) {
GST_WARNING_OBJECT (self, "Failed to acquire memory, ret %s",
gst_flow_get_name (ret));
return ret;
}
gst_buffer_append_memory (buf, mem);
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_d3d12_buffer_pool_alloc_buffer (GstBufferPool * pool, GstBuffer ** buffer,
GstBufferPoolAcquireParams * params)
{
GstD3D12BufferPool *self = GST_D3D12_BUFFER_POOL (pool);
GstD3D12BufferPoolPrivate *priv = self->priv;
GstD3D12AllocationParams *d3d12_params = priv->d3d12_params;
GstVideoInfo *info = &d3d12_params->info;
GstBuffer *buf;
GstFlowReturn ret = GST_FLOW_OK;
buf = gst_buffer_new ();
ret = gst_d3d12_buffer_pool_fill_buffer (self, buf);
if (ret != GST_FLOW_OK) {
gst_buffer_unref (buf);
return ret;
}
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;
}
static gboolean
gst_d3d12_buffer_pool_start (GstBufferPool * pool)
{
GstD3D12BufferPool *self = GST_D3D12_BUFFER_POOL (pool);
GstD3D12BufferPoolPrivate *priv = self->priv;
guint i;
gboolean ret;
GST_DEBUG_OBJECT (self, "Start");
for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
GstD3D12Allocator *alloc = priv->alloc[i];
if (!alloc)
break;
if (!gst_d3d12_allocator_set_active (alloc, TRUE)) {
GST_ERROR_OBJECT (self, "Failed to activate allocator");
return FALSE;
}
}
ret = GST_BUFFER_POOL_CLASS (parent_class)->start (pool);
if (!ret) {
GST_ERROR_OBJECT (self, "Failed to start");
for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
GstD3D12Allocator *alloc = priv->alloc[i];
if (!alloc)
break;
gst_d3d12_allocator_set_active (alloc, FALSE);
}
return FALSE;
}
return TRUE;
}
static gboolean
gst_d3d12_buffer_pool_stop (GstBufferPool * pool)
{
GstD3D12BufferPool *self = GST_D3D12_BUFFER_POOL (pool);
GstD3D12BufferPoolPrivate *priv = self->priv;
guint i;
GST_DEBUG_OBJECT (self, "Stop");
for (i = 0; i < G_N_ELEMENTS (priv->alloc); i++) {
GstD3D12Allocator *alloc = priv->alloc[i];
if (!alloc)
break;
if (!gst_d3d12_allocator_set_active (alloc, FALSE)) {
GST_ERROR_OBJECT (self, "Failed to deactivate allocator");
return FALSE;
}
}
return GST_BUFFER_POOL_CLASS (parent_class)->stop (pool);
}
GstBufferPool *
gst_d3d12_buffer_pool_new (GstD3D12Device * device)
{
GstD3D12BufferPool *self;
g_return_val_if_fail (GST_IS_D3D12_DEVICE (device), nullptr);
self = (GstD3D12BufferPool *)
g_object_new (GST_TYPE_D3D12_BUFFER_POOL, nullptr);
gst_object_ref_sink (self);
self->device = (GstD3D12Device *) gst_object_ref (device);
return GST_BUFFER_POOL_CAST (self);
}
GstD3D12AllocationParams *
gst_buffer_pool_config_get_d3d12_allocation_params (GstStructure * config)
{
GstD3D12AllocationParams *ret = nullptr;
if (!gst_structure_get (config, "d3d12-allocation-params",
GST_TYPE_D3D12_ALLOCATION_PARAMS, &ret, nullptr)) {
return nullptr;
}
return ret;
}
void
gst_buffer_pool_config_set_d3d12_allocation_params (GstStructure * config,
GstD3D12AllocationParams * params)
{
g_return_if_fail (config);
g_return_if_fail (params);
gst_structure_set (config, "d3d12-allocation-params",
GST_TYPE_D3D12_ALLOCATION_PARAMS, params, nullptr);
}