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6c3311a39e
* Create staging texture only when the CPU access is requested. Note that we should avoid the CPU access to d3d11 memory as mush as possible. Incoming d3d11upload and d3d11download will take this GPU memory upload/download. * Upload/Download texture memory from/to staging only if it needed, similar to GstGL PBO implementation. * Define more dxgi formats for future usage (e.g., color conversion, dxva2 decoder). Because I420_* formats are not supported formats by dxgi, each plane should be handled likewise GstGL separately, but NV12/P10 formats might be supported ones. So we decide the number of d3d11memory per GstBuffer for video memory depending on OS version and dxgi format. For instance, if NV12 is supported by OS, only one d3d11memory with DXGI_FORMAT_NV12 texture can be allocated by this commit. One use case of such texture is DXVA. In case DXVA decoder, it might need to produce decoded data to one DXGI_FORMAT_NV12 instead of seperate Y and UV planes. Such behavior will be controlled via configuration of GstD3D11BufferPool and default configuration is separate resources per plane.
160 lines
4.8 KiB
C
160 lines
4.8 KiB
C
/*
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* GStreamer
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* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_D3D11_MEMORY_H__
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#define __GST_D3D11_MEMORY_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include "gstd3d11_fwd.h"
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#include "gstd3d11format.h"
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G_BEGIN_DECLS
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#define GST_TYPE_D3D11_ALLOCATION_PARAMS (gst_d3d11_allocation_params_get_type())
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#define GST_TYPE_D3D11_ALLOCATOR (gst_d3d11_allocator_get_type())
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#define GST_D3D11_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_D3D11_ALLOCATOR, GstD3D11Allocator))
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#define GST_D3D11_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS((klass), GST_TYPE_D3D11_ALLOCATOR, GstD3D11AllocatorClass))
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#define GST_IS_D3D11_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_D3D11_ALLOCATOR))
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#define GST_IS_D3D11_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_D3D11_ALLOCATOR))
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#define GST_D3D11_ALLOCATOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_D3D11_ALLOCATOR, GstD3D11AllocatorClass))
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#define GST_D3D11_MEMORY_NAME "D3D11Memory"
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/**
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* GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY:
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*
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* Name of the caps feature for indicating the use of #GstD3D11Memory
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*/
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#define GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY "memory:D3D11Memory"
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/**
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* GST_MAP_D3D11:
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*
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* Flag indicating that we should map the D3D11 resource instead of to system memory.
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*/
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#define GST_MAP_D3D11 (GST_MAP_FLAG_LAST << 1)
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/**
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* GstD3D11AllocationFlags:
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* GST_D3D11_ALLOCATION_FLAG_USE_RESOURCE_FORMAT: Allocate texture with resource format
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* per planes instead of the direct use of DXGI format
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*/
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typedef enum
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{
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GST_D3D11_ALLOCATION_FLAG_USE_RESOURCE_FORMAT = (1 << 0),
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} GstD3D11AllocationFlags;
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/**
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* GstD3D11MemoryTransfer:
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* @GST_D3D11_MEMORY_TRANSFER_NEED_DOWNLOAD: the texture needs downloading
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* to the staging texture memory
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* @GST_D3D11_MEMORY_TRANSFER_NEED_UPLOAD: the staging texture needs uploading
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* to the texture
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*/
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typedef enum
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{
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GST_D3D11_MEMORY_TRANSFER_NEED_DOWNLOAD = (GST_MEMORY_FLAG_LAST << 0),
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GST_D3D11_MEMORY_TRANSFER_NEED_UPLOAD = (GST_MEMORY_FLAG_LAST << 1)
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} GstD3D11MemoryTransfer;
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struct _GstD3D11AllocationParams
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{
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/* Texture description per plane */
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D3D11_TEXTURE2D_DESC desc[GST_VIDEO_MAX_PLANES];
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GstVideoInfo info;
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const GstD3D11Format *d3d11_format;
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/* size and stride of staging texture, set by allocator */
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gint stride[GST_VIDEO_MAX_PLANES];
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gsize size[GST_VIDEO_MAX_PLANES];
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/* Current target plane for allocation */
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guint plane;
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GstD3D11AllocationFlags flags;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING_LARGE];
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};
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struct _GstD3D11Memory
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{
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GstMemory mem;
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/*< public > */
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GstD3D11Device *device;
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ID3D11Texture2D *texture;
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ID3D11Texture2D *staging;
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GstVideoInfo info;
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guint plane;
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D3D11_TEXTURE2D_DESC desc;
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D3D11_MAPPED_SUBRESOURCE map;
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/*< private >*/
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GMutex lock;
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gint cpu_map_count;
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};
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struct _GstD3D11Allocator
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{
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GstAllocator parent;
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GstD3D11Device *device;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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struct _GstD3D11AllocatorClass
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{
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GstAllocatorClass allocator_class;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_d3d11_allocation_params_get_type (void);
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GstD3D11AllocationParams * gst_d3d11_allocation_params_new (GstVideoInfo * info,
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GstD3D11AllocationFlags flags);
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GstD3D11AllocationParams * gst_d3d11_allocation_params_copy (GstD3D11AllocationParams * src);
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void gst_d3d11_allocation_params_free (GstD3D11AllocationParams * parms);
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GType gst_d3d11_allocator_get_type (void);
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GstD3D11Allocator * gst_d3d11_allocator_new (GstD3D11Device *device);
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GstMemory * gst_d3d11_allocator_alloc (GstD3D11Allocator * allocator,
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GstD3D11AllocationParams * params);
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gboolean gst_is_d3d11_memory (GstMemory * mem);
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G_END_DECLS
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#endif /* __GST_D3D11_MEMORY_H__ */
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