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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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0f7af4b143
Move d3d11 device, memory, buffer pool and minimal method to gst-libs so that other plugins can access d3d11 resource. Since Direct3D is primary graphics API on Windows, we need this infrastructure for various plugins can share GPU resource without downloading GPU memory. Note that this implementation is public only for -bad scope for now. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/464>
152 lines
4 KiB
C
152 lines
4 KiB
C
/* GStreamer
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* Copyright (C) 2020 Seungha Yang <seungha@centricular.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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstd3d11format.h"
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#include "gstd3d11utils.h"
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#include "gstd3d11device.h"
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#include "gstd3d11memory.h"
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#include <string.h>
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#ifndef GST_DISABLE_GST_DEBUG
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#define GST_CAT_DEFAULT ensure_debug_category()
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static GstDebugCategory *
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ensure_debug_category (void)
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{
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static gsize cat_gonce = 0;
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if (g_once_init_enter (&cat_gonce)) {
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gsize cat_done;
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cat_done = (gsize) _gst_debug_category_new ("d3d11format", 0,
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"d3d11 specific formats");
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g_once_init_leave (&cat_gonce, cat_done);
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}
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return (GstDebugCategory *) cat_gonce;
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}
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#else
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#define ensure_debug_category() /* NOOP */
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#endif /* GST_DISABLE_GST_DEBUG */
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/**
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* gst_d3d11_dxgi_format_n_planes:
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* @format: a DXGI_FORMAT
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*
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* Returns: the number of planes for @format
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*
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* Since: 1.20
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*/
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guint
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gst_d3d11_dxgi_format_n_planes (DXGI_FORMAT format)
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{
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switch (format) {
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case DXGI_FORMAT_B8G8R8A8_UNORM:
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case DXGI_FORMAT_R8G8B8A8_UNORM:
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case DXGI_FORMAT_R10G10B10A2_UNORM:
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case DXGI_FORMAT_AYUV:
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case DXGI_FORMAT_YUY2:
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case DXGI_FORMAT_R8_UNORM:
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case DXGI_FORMAT_R8G8_UNORM:
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case DXGI_FORMAT_R16_UNORM:
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case DXGI_FORMAT_R16G16_UNORM:
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case DXGI_FORMAT_G8R8_G8B8_UNORM:
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case DXGI_FORMAT_R8G8_B8G8_UNORM:
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case DXGI_FORMAT_Y210:
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case DXGI_FORMAT_Y410:
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case DXGI_FORMAT_R16G16B16A16_UNORM:
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return 1;
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case DXGI_FORMAT_NV12:
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case DXGI_FORMAT_P010:
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case DXGI_FORMAT_P016:
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return 2;
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default:
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break;
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}
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return 0;
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}
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/**
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* gst_d3d11_dxgi_format_get_size:
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* @format: a DXGI_FORMAT
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* @width: a texture width
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* @height: a texture height
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* @pitch: a pitch of texture
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* @offset: offset for each plane
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* @stride: stride for each plane
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* @size: (out): required memory size for given format
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*
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* Calculate required memory size and per plane stride with
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* based on information
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*
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* Returns: %TRUE if @size can be calculated with given information
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*
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* Since: 1.20
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*/
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gboolean
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gst_d3d11_dxgi_format_get_size (DXGI_FORMAT format, guint width, guint height,
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guint pitch, gsize offset[GST_VIDEO_MAX_PLANES],
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gint stride[GST_VIDEO_MAX_PLANES], gsize * size)
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{
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g_return_val_if_fail (format != DXGI_FORMAT_UNKNOWN, FALSE);
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switch (format) {
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case DXGI_FORMAT_B8G8R8A8_UNORM:
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case DXGI_FORMAT_R8G8B8A8_UNORM:
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case DXGI_FORMAT_R10G10B10A2_UNORM:
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case DXGI_FORMAT_AYUV:
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case DXGI_FORMAT_YUY2:
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case DXGI_FORMAT_R8_UNORM:
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case DXGI_FORMAT_R8G8_UNORM:
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case DXGI_FORMAT_R16_UNORM:
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case DXGI_FORMAT_R16G16_UNORM:
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case DXGI_FORMAT_G8R8_G8B8_UNORM:
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case DXGI_FORMAT_R8G8_B8G8_UNORM:
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case DXGI_FORMAT_Y210:
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case DXGI_FORMAT_Y410:
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case DXGI_FORMAT_R16G16B16A16_UNORM:
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offset[0] = 0;
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stride[0] = pitch;
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*size = pitch * height;
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break;
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case DXGI_FORMAT_NV12:
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case DXGI_FORMAT_P010:
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case DXGI_FORMAT_P016:
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offset[0] = 0;
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stride[0] = pitch;
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offset[1] = offset[0] + stride[0] * height;
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stride[1] = pitch;
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*size = offset[1] + stride[1] * GST_ROUND_UP_2 (height / 2);
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break;
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default:
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return FALSE;
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}
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GST_LOG ("Calculated buffer size: %" G_GSIZE_FORMAT
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" (dxgi format:%d, %dx%d, Pitch %d)",
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*size, format, width, height, pitch);
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return TRUE;
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}
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