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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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5801e17160
This fixes a regression introduced by the merge request https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3801 The extrapolated stride was computed but not used, resulting in the same stride being applied to all planes. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7566>
577 lines
14 KiB
C
577 lines
14 KiB
C
/* GStreamer
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*
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* Copyright (C) 2016 Igalia
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*
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* Authors:
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* Víctor Manuel Jáquez Leal <vjaquez@igalia.com>
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* Javier Martin <javiermartin@by.com.es>
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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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*/
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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 <fcntl.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include <stdlib.h>
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#include <sys/mman.h>
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#include <unistd.h>
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/* it needs to be below because is internal to libdrm */
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#include <drm.h>
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#include <gst/allocators/gstdmabuf.h>
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#include <gst/allocators/gstdrmdumb.h>
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#include "gstkmsallocator.h"
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#include "gstkmsutils.h"
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#ifndef DRM_RDWR
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#define DRM_RDWR O_RDWR
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#endif
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#define GST_CAT_DEFAULT kmsallocator_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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#define GST_KMS_MEMORY_TYPE "KMSMemory"
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struct _GstKMSAllocatorPrivate
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{
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int fd;
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/* protected by GstKMSAllocator object lock */
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GList *mem_cache;
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GstAllocator *dumb_alloc;
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};
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#define parent_class gst_kms_allocator_parent_class
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G_DEFINE_TYPE_WITH_CODE (GstKMSAllocator, gst_kms_allocator, GST_TYPE_ALLOCATOR,
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G_ADD_PRIVATE (GstKMSAllocator);
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GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "kmsallocator", 0,
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"KMS allocator"));
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enum
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{
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PROP_DRM_FD = 1,
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PROP_N,
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};
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static GParamSpec *g_props[PROP_N] = { NULL, };
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gboolean
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gst_is_kms_memory (GstMemory * mem)
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{
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return gst_memory_is_type (mem, GST_KMS_MEMORY_TYPE);
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}
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guint32
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gst_kms_memory_get_fb_id (GstMemory * mem)
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{
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if (!gst_is_kms_memory (mem))
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return 0;
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return ((GstKMSMemory *) mem)->fb_id;
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}
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static gboolean
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check_fd (GstKMSAllocator * alloc)
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{
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return alloc->priv->fd > -1;
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}
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static gboolean
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gst_kms_allocator_memory_create (GstKMSAllocator * allocator,
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GstKMSMemory * kmsmem, GstVideoInfo * vinfo)
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{
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gint i, h;
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gint num_planes = GST_VIDEO_INFO_N_PLANES (vinfo);
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gsize offs = 0;
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guint32 pitch;
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if (kmsmem->bo)
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return TRUE;
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kmsmem->bo = gst_drm_dumb_allocator_alloc (allocator->priv->dumb_alloc,
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gst_drm_format_from_video (GST_VIDEO_INFO_FORMAT (vinfo)),
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GST_VIDEO_INFO_WIDTH (vinfo), GST_VIDEO_INFO_HEIGHT (vinfo), &pitch);
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if (!kmsmem->bo)
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goto create_failed;
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if (!pitch)
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goto done;
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h = GST_VIDEO_INFO_HEIGHT (vinfo);
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for (i = 0; i < num_planes; i++) {
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guint32 stride;
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/* Overwrite the video info's stride and offset using the pitch calculcated
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* by the kms driver. */
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stride = gst_video_format_info_extrapolate_stride (vinfo->finfo, i, pitch);
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GST_VIDEO_INFO_PLANE_STRIDE (vinfo, i) = stride;
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GST_VIDEO_INFO_PLANE_OFFSET (vinfo, i) = offs;
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/* Note that we cannot negotiate special padding betweem each planes,
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* hence using the display height here. */
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offs += stride * GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT (vinfo->finfo, i, h);
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GST_DEBUG_OBJECT (allocator, "Created BO plane %i with stride %i and "
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"offset %" G_GSIZE_FORMAT, i,
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GST_VIDEO_INFO_PLANE_STRIDE (vinfo, i),
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GST_VIDEO_INFO_PLANE_OFFSET (vinfo, i));
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}
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/* Update with the size use for display, excluding any padding at the end */
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GST_VIDEO_INFO_SIZE (vinfo) = offs;
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done:
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/* Validate the size to prevent overflow */
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if (kmsmem->bo->size < GST_VIDEO_INFO_SIZE (vinfo)) {
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GST_ERROR_OBJECT (allocator,
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"DUMB buffer has a size of %" G_GSIZE_FORMAT
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" but we require at least %" G_GSIZE_FORMAT " to hold a frame",
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kmsmem->bo->size, GST_VIDEO_INFO_SIZE (vinfo));
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return FALSE;
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}
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return TRUE;
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/* ERRORS */
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create_failed:
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{
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GST_ERROR_OBJECT (allocator, "Failed to create buffer object: %s (%d)",
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g_strerror (errno), errno);
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return FALSE;
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}
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}
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static void
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gst_kms_allocator_free (GstAllocator * allocator, GstMemory * mem)
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{
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GstKMSAllocator *alloc;
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GstKMSMemory *kmsmem;
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alloc = GST_KMS_ALLOCATOR (allocator);
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kmsmem = (GstKMSMemory *) mem;
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if (check_fd (alloc) && kmsmem->fb_id) {
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GST_DEBUG_OBJECT (allocator, "removing fb id %d", kmsmem->fb_id);
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drmModeRmFB (alloc->priv->fd, kmsmem->fb_id);
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kmsmem->fb_id = 0;
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}
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if (kmsmem->bo) {
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gst_memory_unref (kmsmem->bo);
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kmsmem->bo = NULL;
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}
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g_free (kmsmem);
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}
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static void
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gst_kms_allocator_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstKMSAllocator *alloc;
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alloc = GST_KMS_ALLOCATOR (object);
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switch (prop_id) {
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case PROP_DRM_FD:{
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int fd = g_value_get_int (value);
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if (fd > -1)
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alloc->priv->fd = dup (fd);
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break;
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}
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_kms_allocator_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstKMSAllocator *alloc;
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alloc = GST_KMS_ALLOCATOR (object);
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switch (prop_id) {
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case PROP_DRM_FD:
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g_value_set_int (value, alloc->priv->fd);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_kms_allocator_constructed (GObject * obj)
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{
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GstKMSAllocator *alloc;
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alloc = GST_KMS_ALLOCATOR (obj);
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/* Should be called after the properties are set */
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g_assert (check_fd (alloc));
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alloc->priv->dumb_alloc =
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gst_drm_dumb_allocator_new_with_fd (alloc->priv->fd);
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/* Its already opened and we already checked for dumb allocation support */
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g_assert (alloc->priv->dumb_alloc);
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}
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static void
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gst_kms_allocator_finalize (GObject * obj)
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{
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GstKMSAllocator *alloc;
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alloc = GST_KMS_ALLOCATOR (obj);
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gst_kms_allocator_clear_cache (GST_ALLOCATOR (alloc));
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if (alloc->priv->dumb_alloc)
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gst_object_unref (alloc->priv->dumb_alloc);
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if (check_fd (alloc))
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close (alloc->priv->fd);
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G_OBJECT_CLASS (parent_class)->finalize (obj);
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}
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static void
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gst_kms_allocator_class_init (GstKMSAllocatorClass * klass)
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{
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GObjectClass *gobject_class;
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GstAllocatorClass *allocator_class;
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allocator_class = GST_ALLOCATOR_CLASS (klass);
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gobject_class = G_OBJECT_CLASS (klass);
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allocator_class->free = gst_kms_allocator_free;
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gobject_class->set_property = gst_kms_allocator_set_property;
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gobject_class->get_property = gst_kms_allocator_get_property;
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gobject_class->constructed = gst_kms_allocator_constructed;
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gobject_class->finalize = gst_kms_allocator_finalize;
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g_props[PROP_DRM_FD] = g_param_spec_int ("drm-fd", "DRM fd",
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"DRM file descriptor", -1, G_MAXINT, -1,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
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g_object_class_install_properties (gobject_class, PROP_N, g_props);
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}
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static gpointer
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gst_kms_memory_map (GstMemory * mem, gsize maxsize, GstMapFlags flags)
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{
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GstKMSMemory *kmsmem;
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kmsmem = (GstKMSMemory *) mem;
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if (!kmsmem->bo)
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return NULL;
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if (kmsmem->bo_map.data)
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goto out;
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if (!gst_memory_map (kmsmem->bo, &kmsmem->bo_map, flags))
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return NULL;
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out:
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g_atomic_int_inc (&kmsmem->bo_map_refs);
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return kmsmem->bo_map.data;
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}
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static void
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gst_kms_memory_unmap (GstMemory * mem)
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{
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GstKMSMemory *kmsmem;
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kmsmem = (GstKMSMemory *) mem;
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if (!kmsmem->bo)
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return;
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if (g_atomic_int_dec_and_test (&kmsmem->bo_map_refs)) {
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gst_memory_unmap (kmsmem->bo, &kmsmem->bo_map);
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kmsmem->bo_map.data = NULL;
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}
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}
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static void
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gst_kms_allocator_init (GstKMSAllocator * allocator)
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{
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GstAllocator *alloc;
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alloc = GST_ALLOCATOR_CAST (allocator);
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allocator->priv = gst_kms_allocator_get_instance_private (allocator);
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allocator->priv->fd = -1;
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alloc->mem_type = GST_KMS_MEMORY_TYPE;
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alloc->mem_map = gst_kms_memory_map;
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alloc->mem_unmap = gst_kms_memory_unmap;
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/* Use the default, fallback copy function */
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GST_OBJECT_FLAG_SET (allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC);
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}
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GstAllocator *
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gst_kms_allocator_new (int fd)
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{
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GstAllocator *alloc;
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alloc = g_object_new (GST_TYPE_KMS_ALLOCATOR, "name",
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"KMSMemory::allocator", "drm-fd", fd, NULL);
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gst_object_ref_sink (alloc);
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return alloc;
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}
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/* The mem_offsets are relative to the GstMemory start, unlike the vinfo->offset
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* which are relative to the GstBuffer start. */
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static gboolean
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gst_kms_allocator_add_fb (GstKMSAllocator * alloc, GstKMSMemory * kmsmem,
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gsize in_offsets[GST_VIDEO_MAX_PLANES], GstVideoInfo * vinfo,
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guint32 bo_handles[4])
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{
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gint i, ret;
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gint num_planes = GST_VIDEO_INFO_N_PLANES (vinfo);
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guint32 w, h, fmt;
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guint32 pitches[4] = { 0, };
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guint32 offsets[4] = { 0, };
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if (kmsmem->fb_id)
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return TRUE;
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w = GST_VIDEO_INFO_WIDTH (vinfo);
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h = GST_VIDEO_INFO_HEIGHT (vinfo);
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fmt = gst_drm_format_from_video (GST_VIDEO_INFO_FORMAT (vinfo));
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for (i = 0; i < num_planes; i++) {
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pitches[i] = GST_VIDEO_INFO_PLANE_STRIDE (vinfo, i);
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offsets[i] = in_offsets[i];
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}
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GST_DEBUG_OBJECT (alloc, "bo handles: %d, %d, %d, %d", bo_handles[0],
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bo_handles[1], bo_handles[2], bo_handles[3]);
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ret = drmModeAddFB2 (alloc->priv->fd, w, h, fmt, bo_handles, pitches,
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offsets, &kmsmem->fb_id, 0);
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if (ret) {
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GST_ERROR_OBJECT (alloc, "Failed to bind to framebuffer: %s (%d)",
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g_strerror (errno), errno);
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return FALSE;
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}
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return TRUE;
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}
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GstMemory *
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gst_kms_allocator_bo_alloc (GstAllocator * allocator, GstVideoInfo * vinfo)
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{
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GstKMSAllocator *alloc;
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GstKMSMemory *kmsmem;
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GstMemory *mem;
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guint32 bo_handle[4] = { 0, };
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gint i;
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kmsmem = g_new0 (GstKMSMemory, 1);
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alloc = GST_KMS_ALLOCATOR (allocator);
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mem = GST_MEMORY_CAST (kmsmem);
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if (!gst_kms_allocator_memory_create (alloc, kmsmem, vinfo)) {
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g_free (kmsmem);
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return NULL;
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}
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gst_memory_init (mem, GST_MEMORY_FLAG_NO_SHARE, allocator, NULL,
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kmsmem->bo->maxsize, 0, 0, GST_VIDEO_INFO_SIZE (vinfo));
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for (i = 0; i < GST_VIDEO_INFO_N_PLANES (vinfo); i++)
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bo_handle[i] = gst_drm_dumb_memory_get_handle (kmsmem->bo);
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if (!gst_kms_allocator_add_fb (alloc, kmsmem, vinfo->offset, vinfo,
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bo_handle))
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goto fail;
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return mem;
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/* ERRORS */
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fail:
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gst_memory_unref (mem);
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return NULL;
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}
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GstKMSMemory *
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gst_kms_allocator_dmabuf_import (GstAllocator * allocator, gint * prime_fds,
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gint n_planes, gsize offsets[GST_VIDEO_MAX_PLANES], GstVideoInfo * vinfo)
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{
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GstKMSAllocator *alloc;
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GstKMSMemory *kmsmem;
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GstMemory *mem;
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gint i, j, ret;
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guint32 gem_handle[4] = { 0, };
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g_return_val_if_fail (n_planes <= GST_VIDEO_MAX_PLANES, FALSE);
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kmsmem = g_new0 (GstKMSMemory, 1);
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mem = GST_MEMORY_CAST (kmsmem);
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gst_memory_init (mem, GST_MEMORY_FLAG_NO_SHARE, allocator, NULL,
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GST_VIDEO_INFO_SIZE (vinfo), 0, 0, GST_VIDEO_INFO_SIZE (vinfo));
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alloc = GST_KMS_ALLOCATOR (allocator);
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for (i = 0; i < n_planes; i++) {
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ret = drmPrimeFDToHandle (alloc->priv->fd, prime_fds[i], &gem_handle[i]);
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if (ret)
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goto import_fd_failed;
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}
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if (!gst_kms_allocator_add_fb (alloc, kmsmem, offsets, vinfo, gem_handle))
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goto failed;
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done:
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for (i = 0; i < n_planes; i++) {
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struct drm_gem_close arg = { gem_handle[i], };
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gint err;
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if (!gem_handle[i])
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continue;
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/* Do not close the same handle twice. */
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for (j = 0; j < i; j++) {
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if (gem_handle[j] == gem_handle[i])
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break;
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}
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if (j < i)
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continue;
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err = drmIoctl (alloc->priv->fd, DRM_IOCTL_GEM_CLOSE, &arg);
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if (err)
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GST_WARNING_OBJECT (allocator,
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"Failed to close GEM handle: %s %d", g_strerror (errno), errno);
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}
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return kmsmem;
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/* ERRORS */
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import_fd_failed:
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GST_ERROR_OBJECT (alloc, "Failed to import prime fd %d: %s (%d)",
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prime_fds[i], g_strerror (errno), errno);
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/* fallthrough */
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failed:
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gst_memory_unref (mem);
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mem = NULL;
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kmsmem = NULL;
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goto done;
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}
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GstMemory *
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gst_kms_allocator_dmabuf_export (GstAllocator * allocator, GstMemory * _kmsmem)
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{
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GstKMSMemory *kmsmem = (GstKMSMemory *) _kmsmem;
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GstKMSAllocator *alloc = GST_KMS_ALLOCATOR (allocator);
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GstMemory *mem;
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/* We can only export DUMB buffers */
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g_return_val_if_fail (kmsmem->bo, NULL);
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|
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mem = gst_drm_dumb_memory_export_dmabuf (kmsmem->bo);
|
|
if (!mem)
|
|
goto export_fd_failed;
|
|
|
|
/* Populate the cache so KMSSink can find the kmsmem back when it receives
|
|
* one of these DMABuf. This call takes ownership of the kmsmem. */
|
|
gst_kms_allocator_cache (allocator, mem, _kmsmem);
|
|
|
|
GST_DEBUG_OBJECT (alloc, "Exported bo handle %d as %d",
|
|
gst_drm_dumb_memory_get_handle (kmsmem->bo),
|
|
gst_dmabuf_memory_get_fd (mem));
|
|
|
|
return mem;
|
|
|
|
/* ERRORS */
|
|
export_fd_failed:
|
|
{
|
|
GST_ERROR_OBJECT (alloc, "Failed to export bo handle %d: %s (%d)",
|
|
gst_drm_dumb_memory_get_handle (kmsmem->bo), g_strerror (errno), errno);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* FIXME, using gdata for caching on upstream memory is not tee safe */
|
|
GstMemory *
|
|
gst_kms_allocator_get_cached (GstMemory * mem)
|
|
{
|
|
return gst_mini_object_get_qdata (GST_MINI_OBJECT (mem),
|
|
g_quark_from_static_string ("kmsmem"));
|
|
}
|
|
|
|
static void
|
|
cached_kmsmem_disposed_cb (GstKMSAllocator * alloc, GstMiniObject * obj)
|
|
{
|
|
GST_OBJECT_LOCK (alloc);
|
|
alloc->priv->mem_cache = g_list_remove (alloc->priv->mem_cache, obj);
|
|
GST_OBJECT_UNLOCK (alloc);
|
|
}
|
|
|
|
void
|
|
gst_kms_allocator_clear_cache (GstAllocator * allocator)
|
|
{
|
|
GstKMSAllocator *alloc = GST_KMS_ALLOCATOR (allocator);
|
|
GList *iter;
|
|
|
|
GST_OBJECT_LOCK (alloc);
|
|
|
|
iter = alloc->priv->mem_cache;
|
|
while (iter) {
|
|
GstMiniObject *obj = iter->data;
|
|
gst_mini_object_weak_unref (obj,
|
|
(GstMiniObjectNotify) cached_kmsmem_disposed_cb, alloc);
|
|
gst_mini_object_set_qdata (obj,
|
|
g_quark_from_static_string ("kmsmem"), NULL, NULL);
|
|
iter = iter->next;
|
|
}
|
|
|
|
g_list_free (alloc->priv->mem_cache);
|
|
alloc->priv->mem_cache = NULL;
|
|
|
|
GST_OBJECT_UNLOCK (alloc);
|
|
}
|
|
|
|
/* @kmsmem is transfer-full */
|
|
void
|
|
gst_kms_allocator_cache (GstAllocator * allocator, GstMemory * mem,
|
|
GstMemory * kmsmem)
|
|
{
|
|
GstKMSAllocator *alloc = GST_KMS_ALLOCATOR (allocator);
|
|
|
|
GST_OBJECT_LOCK (alloc);
|
|
gst_mini_object_weak_ref (GST_MINI_OBJECT (mem),
|
|
(GstMiniObjectNotify) cached_kmsmem_disposed_cb, alloc);
|
|
alloc->priv->mem_cache = g_list_prepend (alloc->priv->mem_cache, mem);
|
|
GST_OBJECT_UNLOCK (alloc);
|
|
|
|
gst_mini_object_set_qdata (GST_MINI_OBJECT (mem),
|
|
g_quark_from_static_string ("kmsmem"), kmsmem,
|
|
(GDestroyNotify) gst_memory_unref);
|
|
}
|