gstreamer/subprojects/gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11format.cpp

193 lines
5 KiB
C++

/* GStreamer
* Copyright (C) 2020 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 "gstd3d11format.h"
#include "gstd3d11utils.h"
#include "gstd3d11device.h"
#include "gstd3d11memory.h"
#include <string.h>
#ifndef GST_DISABLE_GST_DEBUG
#define GST_CAT_DEFAULT ensure_debug_category()
static GstDebugCategory *
ensure_debug_category (void)
{
static gsize cat_gonce = 0;
if (g_once_init_enter (&cat_gonce)) {
gsize cat_done;
cat_done = (gsize) _gst_debug_category_new ("d3d11format", 0,
"d3d11 specific formats");
g_once_init_leave (&cat_gonce, cat_done);
}
return (GstDebugCategory *) cat_gonce;
}
#else
#define ensure_debug_category() /* NOOP */
#endif /* GST_DISABLE_GST_DEBUG */
/**
* gst_d3d11_dxgi_format_n_planes:
* @format: a DXGI_FORMAT
*
* Returns: the number of planes for @format
*
* Since: 1.20
*/
guint
gst_d3d11_dxgi_format_n_planes (DXGI_FORMAT format)
{
switch (format) {
case DXGI_FORMAT_B8G8R8A8_UNORM:
case DXGI_FORMAT_R8G8B8A8_UNORM:
case DXGI_FORMAT_R10G10B10A2_UNORM:
case DXGI_FORMAT_AYUV:
case DXGI_FORMAT_YUY2:
case DXGI_FORMAT_R8_UNORM:
case DXGI_FORMAT_R8G8_UNORM:
case DXGI_FORMAT_R16_UNORM:
case DXGI_FORMAT_R16G16_UNORM:
case DXGI_FORMAT_G8R8_G8B8_UNORM:
case DXGI_FORMAT_R8G8_B8G8_UNORM:
case DXGI_FORMAT_Y210:
case DXGI_FORMAT_Y410:
case DXGI_FORMAT_R16G16B16A16_UNORM:
return 1;
case DXGI_FORMAT_NV12:
case DXGI_FORMAT_P010:
case DXGI_FORMAT_P016:
return 2;
default:
break;
}
return 0;
}
/**
* gst_d3d11_dxgi_format_get_size:
* @format: a DXGI_FORMAT
* @width: a texture width
* @height: a texture height
* @pitch: a pitch of texture
* @offset: offset for each plane
* @stride: stride for each plane
* @size: (out): required memory size for given format
*
* Calculate required memory size and per plane stride with
* based on information
*
* Returns: %TRUE if @size can be calculated with given information
*
* Since: 1.20
*/
gboolean
gst_d3d11_dxgi_format_get_size (DXGI_FORMAT format, guint width, guint height,
guint pitch, gsize offset[GST_VIDEO_MAX_PLANES],
gint stride[GST_VIDEO_MAX_PLANES], gsize * size)
{
g_return_val_if_fail (format != DXGI_FORMAT_UNKNOWN, FALSE);
switch (format) {
case DXGI_FORMAT_B8G8R8A8_UNORM:
case DXGI_FORMAT_R8G8B8A8_UNORM:
case DXGI_FORMAT_R10G10B10A2_UNORM:
case DXGI_FORMAT_AYUV:
case DXGI_FORMAT_YUY2:
case DXGI_FORMAT_R8_UNORM:
case DXGI_FORMAT_R8G8_UNORM:
case DXGI_FORMAT_R16_UNORM:
case DXGI_FORMAT_R16G16_UNORM:
case DXGI_FORMAT_G8R8_G8B8_UNORM:
case DXGI_FORMAT_R8G8_B8G8_UNORM:
case DXGI_FORMAT_Y210:
case DXGI_FORMAT_Y410:
case DXGI_FORMAT_R16G16B16A16_UNORM:
offset[0] = 0;
stride[0] = pitch;
*size = pitch * height;
break;
case DXGI_FORMAT_NV12:
case DXGI_FORMAT_P010:
case DXGI_FORMAT_P016:
offset[0] = 0;
stride[0] = pitch;
offset[1] = offset[0] + stride[0] * height;
stride[1] = pitch;
*size = offset[1] + stride[1] * GST_ROUND_UP_2 (height / 2);
break;
default:
return FALSE;
}
GST_LOG ("Calculated buffer size: %" G_GSIZE_FORMAT
" (dxgi format:%d, %dx%d, Pitch %d)",
*size, format, width, height, pitch);
return TRUE;
}
/**
* gst_d3d11_dxgi_format_to_gst:
* @format: a DXGI_FORMAT
*
* Converts the @format to its #GstVideoFormat representation.
*
* Returns: a #GstVideoFormat equivalent to @format
*
* Since: 1.20
*/
GstVideoFormat
gst_d3d11_dxgi_format_to_gst (DXGI_FORMAT format)
{
switch (format) {
case DXGI_FORMAT_B8G8R8A8_UNORM:
return GST_VIDEO_FORMAT_BGRA;
case DXGI_FORMAT_R8G8B8A8_UNORM:
return GST_VIDEO_FORMAT_RGBA;
case DXGI_FORMAT_R10G10B10A2_UNORM:
return GST_VIDEO_FORMAT_RGB10A2_LE;
case DXGI_FORMAT_AYUV:
return GST_VIDEO_FORMAT_VUYA;
case DXGI_FORMAT_YUY2:
return GST_VIDEO_FORMAT_YUY2;
case DXGI_FORMAT_Y210:
return GST_VIDEO_FORMAT_Y210;
case DXGI_FORMAT_Y410:
return GST_VIDEO_FORMAT_Y410;
case DXGI_FORMAT_NV12:
return GST_VIDEO_FORMAT_NV12;
case DXGI_FORMAT_P010:
return GST_VIDEO_FORMAT_P010_10LE;
case DXGI_FORMAT_P016:
return GST_VIDEO_FORMAT_P016_LE;
default:
break;
}
return GST_VIDEO_FORMAT_UNKNOWN;
}