| /* GStreamer |
| * |
| * Copyright (C) 2016 Igalia |
| * |
| * Authors: |
| * Víctor Manuel Jáquez Leal <vjaquez@igalia.com> |
| * Javier Martin <javiermartin@by.com.es> |
| * |
| * 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 <fcntl.h> |
| #include <xf86drm.h> |
| #include <xf86drmMode.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/mman.h> |
| #include <unistd.h> |
| #include <drm_fourcc_imx.h> |
| |
| /* it needs to be below because is internal to libdrm */ |
| #include <drm.h> |
| |
| #include <gst/allocators/gstdmabuf.h> |
| |
| #include "gstkmsallocator.h" |
| #include "gstkmsutils.h" |
| |
| #ifndef DRM_RDWR |
| #define DRM_RDWR O_RDWR |
| #endif |
| |
| #define GST_CAT_DEFAULT kmsallocator_debug |
| GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT); |
| |
| #define GST_KMS_MEMORY_TYPE "KMSMemory" |
| |
| struct kms_bo |
| { |
| void *ptr; |
| size_t size; |
| unsigned handle; |
| unsigned int refs; |
| }; |
| |
| struct _GstKMSAllocatorPrivate |
| { |
| int fd; |
| /* protected by GstKMSAllocator object lock */ |
| GList *mem_cache; |
| GstAllocator *dmabuf_alloc; |
| }; |
| |
| #define parent_class gst_kms_allocator_parent_class |
| G_DEFINE_TYPE_WITH_CODE (GstKMSAllocator, gst_kms_allocator, GST_TYPE_ALLOCATOR, |
| G_ADD_PRIVATE (GstKMSAllocator); |
| GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "kmsallocator", 0, |
| "KMS allocator")); |
| |
| enum |
| { |
| PROP_DRM_FD = 1, |
| PROP_N, |
| }; |
| |
| static GParamSpec *g_props[PROP_N] = { NULL, }; |
| |
| gboolean |
| gst_is_kms_memory (GstMemory * mem) |
| { |
| return gst_memory_is_type (mem, GST_KMS_MEMORY_TYPE); |
| } |
| |
| guint32 |
| gst_kms_memory_get_fb_id (GstMemory * mem) |
| { |
| if (!gst_is_kms_memory (mem)) |
| return 0; |
| return ((GstKMSMemory *) mem)->fb_id; |
| } |
| |
| static gboolean |
| check_fd (GstKMSAllocator * alloc) |
| { |
| return alloc->priv->fd > -1; |
| } |
| |
| static void |
| gst_kms_allocator_memory_reset (GstKMSAllocator * allocator, GstKMSMemory * mem) |
| { |
| int err; |
| struct drm_mode_destroy_dumb arg = { 0, }; |
| |
| if (!check_fd (allocator)) |
| return; |
| |
| if (mem->fb_id) { |
| GST_DEBUG_OBJECT (allocator, "removing fb id %d", mem->fb_id); |
| drmModeRmFB (allocator->priv->fd, mem->fb_id); |
| mem->fb_id = 0; |
| } |
| |
| if (!mem->bo) |
| return; |
| |
| if (mem->bo->ptr != NULL) { |
| GST_WARNING_OBJECT (allocator, "destroying mapped bo (refcount=%d)", |
| mem->bo->refs); |
| munmap (mem->bo->ptr, mem->bo->size); |
| mem->bo->ptr = NULL; |
| } |
| |
| arg.handle = mem->bo->handle; |
| |
| err = drmIoctl (allocator->priv->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &arg); |
| if (err) |
| GST_WARNING_OBJECT (allocator, |
| "Failed to destroy dumb buffer object: %s %d", strerror (errno), errno); |
| |
| g_free (mem->bo); |
| mem->bo = NULL; |
| } |
| |
| /* Copied from gst_v4l2_object_extrapolate_stride() */ |
| static gint |
| extrapolate_stride (const GstVideoFormatInfo * finfo, gint plane, gint stride) |
| { |
| gint estride; |
| |
| switch (finfo->format) { |
| case GST_VIDEO_FORMAT_NV12: |
| case GST_VIDEO_FORMAT_NV12_64Z32: |
| case GST_VIDEO_FORMAT_NV21: |
| case GST_VIDEO_FORMAT_NV16: |
| case GST_VIDEO_FORMAT_NV61: |
| case GST_VIDEO_FORMAT_NV24: |
| case GST_VIDEO_FORMAT_NV12_10LE: |
| estride = (plane == 0 ? 1 : 2) * |
| GST_VIDEO_FORMAT_INFO_SCALE_WIDTH (finfo, plane, stride); |
| break; |
| default: |
| estride = GST_VIDEO_FORMAT_INFO_SCALE_WIDTH (finfo, plane, stride); |
| break; |
| } |
| |
| return estride; |
| } |
| |
| static gboolean |
| gst_kms_allocator_memory_create (GstKMSAllocator * allocator, |
| GstKMSMemory * kmsmem, GstVideoInfo * vinfo) |
| { |
| gint i, ret, h; |
| struct drm_mode_create_dumb arg = { 0, }; |
| guint32 fmt; |
| gint num_planes = GST_VIDEO_INFO_N_PLANES (vinfo); |
| gsize offs = 0; |
| |
| if (kmsmem->bo) |
| return TRUE; |
| |
| if (!check_fd (allocator)) |
| return FALSE; |
| |
| kmsmem->bo = g_malloc0 (sizeof (*kmsmem->bo)); |
| if (!kmsmem->bo) |
| return FALSE; |
| |
| fmt = gst_drm_format_from_video (GST_VIDEO_INFO_FORMAT (vinfo)); |
| arg.bpp = gst_drm_bpp_from_drm (fmt); |
| arg.width = GST_VIDEO_INFO_WIDTH (vinfo); |
| h = GST_VIDEO_INFO_HEIGHT (vinfo); |
| arg.height = gst_drm_height_from_drm (fmt, h); |
| |
| ret = drmIoctl (allocator->priv->fd, DRM_IOCTL_MODE_CREATE_DUMB, &arg); |
| if (ret) |
| goto create_failed; |
| |
| if (!arg.pitch) |
| goto done; |
| |
| for (i = 0; i < num_planes; i++) { |
| guint32 pitch; |
| |
| if (!arg.pitch) |
| continue; |
| |
| /* Overwrite the video info's stride and offset using the pitch calculcated |
| * by the kms driver. */ |
| pitch = extrapolate_stride (vinfo->finfo, i, arg.pitch); |
| GST_VIDEO_INFO_PLANE_STRIDE (vinfo, i) = pitch; |
| GST_VIDEO_INFO_PLANE_OFFSET (vinfo, i) = offs; |
| |
| /* Note that we cannot negotiate special padding betweem each planes, |
| * hence using the display height here. */ |
| offs += pitch * GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT (vinfo->finfo, i, h); |
| |
| GST_DEBUG_OBJECT (allocator, "Created BO plane %i with stride %i and " |
| "offset %" G_GSIZE_FORMAT, i, |
| GST_VIDEO_INFO_PLANE_STRIDE (vinfo, i), |
| GST_VIDEO_INFO_PLANE_OFFSET (vinfo, i)); |
| } |
| |
| /* Update with the size use for display, excluding any padding at the end */ |
| GST_VIDEO_INFO_SIZE (vinfo) = offs; |
| |
| done: |
| kmsmem->bo->handle = arg.handle; |
| /* will be used a memory maxsize */ |
| kmsmem->bo->size = arg.size; |
| |
| /* Validate the size to prevent overflow */ |
| if (kmsmem->bo->size < GST_VIDEO_INFO_SIZE (vinfo)) { |
| GST_ERROR_OBJECT (allocator, |
| "DUMB buffer has a size of %" G_GSIZE_FORMAT |
| " but we require at least %" G_GSIZE_FORMAT " to hold a frame", |
| kmsmem->bo->size, GST_VIDEO_INFO_SIZE (vinfo)); |
| return FALSE; |
| } |
| |
| return TRUE; |
| |
| /* ERRORS */ |
| create_failed: |
| { |
| GST_ERROR_OBJECT (allocator, "Failed to create buffer object: %s (%d)", |
| strerror (-ret), ret); |
| g_free (kmsmem->bo); |
| kmsmem->bo = NULL; |
| return FALSE; |
| } |
| } |
| |
| static void |
| gst_kms_allocator_free (GstAllocator * allocator, GstMemory * mem) |
| { |
| GstKMSAllocator *alloc; |
| GstKMSMemory *kmsmem; |
| |
| alloc = GST_KMS_ALLOCATOR (allocator); |
| kmsmem = (GstKMSMemory *) mem; |
| |
| gst_kms_allocator_memory_reset (alloc, kmsmem); |
| g_slice_free (GstKMSMemory, kmsmem); |
| } |
| |
| static void |
| gst_kms_allocator_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec) |
| { |
| GstKMSAllocator *alloc; |
| |
| alloc = GST_KMS_ALLOCATOR (object); |
| |
| switch (prop_id) { |
| case PROP_DRM_FD:{ |
| int fd = g_value_get_int (value); |
| if (fd > -1) |
| alloc->priv->fd = dup (fd); |
| break; |
| } |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gst_kms_allocator_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec) |
| { |
| GstKMSAllocator *alloc; |
| |
| alloc = GST_KMS_ALLOCATOR (object); |
| |
| switch (prop_id) { |
| case PROP_DRM_FD: |
| g_value_set_int (value, alloc->priv->fd); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gst_kms_allocator_finalize (GObject * obj) |
| { |
| GstKMSAllocator *alloc; |
| |
| alloc = GST_KMS_ALLOCATOR (obj); |
| |
| gst_kms_allocator_clear_cache (GST_ALLOCATOR (alloc)); |
| |
| if (alloc->priv->dmabuf_alloc) |
| gst_object_unref (alloc->priv->dmabuf_alloc); |
| |
| if (check_fd (alloc)) |
| close (alloc->priv->fd); |
| |
| G_OBJECT_CLASS (parent_class)->finalize (obj); |
| } |
| |
| static void |
| gst_kms_allocator_class_init (GstKMSAllocatorClass * klass) |
| { |
| GObjectClass *gobject_class; |
| GstAllocatorClass *allocator_class; |
| |
| allocator_class = GST_ALLOCATOR_CLASS (klass); |
| gobject_class = G_OBJECT_CLASS (klass); |
| |
| allocator_class->free = gst_kms_allocator_free; |
| |
| gobject_class->set_property = gst_kms_allocator_set_property; |
| gobject_class->get_property = gst_kms_allocator_get_property; |
| gobject_class->finalize = gst_kms_allocator_finalize; |
| |
| g_props[PROP_DRM_FD] = g_param_spec_int ("drm-fd", "DRM fd", |
| "DRM file descriptor", -1, G_MAXINT, -1, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT); |
| |
| g_object_class_install_properties (gobject_class, PROP_N, g_props); |
| } |
| |
| static gpointer |
| gst_kms_memory_map (GstMemory * mem, gsize maxsize, GstMapFlags flags) |
| { |
| GstKMSMemory *kmsmem; |
| GstKMSAllocator *alloc; |
| int err; |
| gpointer out; |
| struct drm_mode_map_dumb arg = { 0, }; |
| |
| alloc = (GstKMSAllocator *) mem->allocator; |
| |
| if (!check_fd (alloc)) |
| return NULL; |
| |
| kmsmem = (GstKMSMemory *) mem; |
| if (!kmsmem->bo) |
| return NULL; |
| |
| /* Reuse existing buffer object mapping if possible */ |
| if (kmsmem->bo->ptr != NULL) { |
| goto out; |
| } |
| |
| arg.handle = kmsmem->bo->handle; |
| |
| err = drmIoctl (alloc->priv->fd, DRM_IOCTL_MODE_MAP_DUMB, &arg); |
| if (err) { |
| GST_ERROR_OBJECT (alloc, "Failed to get offset of buffer object: %s %d", |
| strerror (-err), err); |
| return NULL; |
| } |
| |
| out = mmap (0, kmsmem->bo->size, |
| PROT_READ | PROT_WRITE, MAP_SHARED, alloc->priv->fd, arg.offset); |
| if (out == MAP_FAILED) { |
| GST_ERROR_OBJECT (alloc, "Failed to map dumb buffer object: %s %d", |
| strerror (errno), errno); |
| return NULL; |
| } |
| kmsmem->bo->ptr = out; |
| |
| out: |
| g_atomic_int_inc (&kmsmem->bo->refs); |
| return kmsmem->bo->ptr; |
| } |
| |
| static void |
| gst_kms_memory_unmap (GstMemory * mem) |
| { |
| GstKMSMemory *kmsmem; |
| |
| if (!check_fd ((GstKMSAllocator *) mem->allocator)) |
| return; |
| |
| kmsmem = (GstKMSMemory *) mem; |
| if (!kmsmem->bo) |
| return; |
| |
| if (g_atomic_int_dec_and_test (&kmsmem->bo->refs)) { |
| munmap (kmsmem->bo->ptr, kmsmem->bo->size); |
| kmsmem->bo->ptr = NULL; |
| } |
| } |
| |
| static void |
| gst_kms_allocator_init (GstKMSAllocator * allocator) |
| { |
| GstAllocator *alloc; |
| |
| alloc = GST_ALLOCATOR_CAST (allocator); |
| |
| allocator->priv = gst_kms_allocator_get_instance_private (allocator); |
| allocator->priv->fd = -1; |
| |
| alloc->mem_type = GST_KMS_MEMORY_TYPE; |
| alloc->mem_map = gst_kms_memory_map; |
| alloc->mem_unmap = gst_kms_memory_unmap; |
| /* Use the default, fallback copy function */ |
| |
| GST_OBJECT_FLAG_SET (allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC); |
| } |
| |
| GstAllocator * |
| gst_kms_allocator_new (int fd) |
| { |
| GstAllocator *alloc; |
| |
| alloc = g_object_new (GST_TYPE_KMS_ALLOCATOR, "name", |
| "KMSMemory::allocator", "drm-fd", fd, NULL); |
| gst_object_ref_sink (alloc); |
| |
| return alloc; |
| } |
| |
| /* The mem_offsets are relative to the GstMemory start, unlike the vinfo->offset |
| * which are relative to the GstBuffer start. */ |
| static gboolean |
| gst_kms_allocator_add_fb (GstKMSAllocator * alloc, GstKMSMemory * kmsmem, |
| gint64 drm_modifier, gsize in_offsets[GST_VIDEO_MAX_PLANES], GstVideoInfo * vinfo) |
| { |
| gint i, ret; |
| gint num_planes = GST_VIDEO_INFO_N_PLANES (vinfo); |
| guint32 w, h, fmt, alignment, bo_handles[4] = { 0, }; |
| guint32 pitches[4] = { 0, }; |
| guint32 offsets[4] = { 0, }; |
| guint64 modifier[4] = { 0, }; |
| |
| if (kmsmem->fb_id) |
| return TRUE; |
| |
| w = GST_VIDEO_INFO_WIDTH (vinfo); |
| h = GST_VIDEO_INFO_HEIGHT (vinfo); |
| fmt = gst_drm_format_from_video (GST_VIDEO_INFO_FORMAT (vinfo)); |
| alignment = gst_drm_alignment_from_drm_format (fmt); |
| w = GST_ROUND_UP_N (w, alignment); |
| h = GST_ROUND_UP_N (h, alignment); |
| |
| for (i = 0; i < num_planes; i++) { |
| if (kmsmem->bo) |
| bo_handles[i] = kmsmem->bo->handle; |
| else |
| bo_handles[i] = kmsmem->gem_handle[i]; |
| |
| pitches[i] = GST_VIDEO_INFO_PLANE_STRIDE (vinfo, i); |
| offsets[i] = in_offsets[i]; |
| modifier[i] = drm_modifier; |
| } |
| |
| GST_DEBUG_OBJECT (alloc, "bo handles: %d, %d, %d, %d", bo_handles[0], |
| bo_handles[1], bo_handles[2], bo_handles[3]); |
| if (drm_modifier == DRM_FORMAT_MOD_AMPHION_TILED) { |
| /* for qxp, dpu need fb width align to 8 |
| * and height align to 256 */ |
| w = GST_ROUND_UP_8 (w); |
| h = GST_ROUND_UP_N (h, 256); |
| } |
| |
| if (drm_modifier) { |
| ret = drmModeAddFB2WithModifiers (alloc->priv->fd, w, h, fmt, bo_handles, pitches, |
| offsets, modifier, &kmsmem->fb_id, DRM_MODE_FB_MODIFIERS); |
| } else { |
| ret = drmModeAddFB2 (alloc->priv->fd, w, h, fmt, bo_handles, pitches, |
| offsets, &kmsmem->fb_id, 0); |
| } |
| |
| if (ret) { |
| GST_ERROR_OBJECT (alloc, "Failed to bind to framebuffer: %s (%d)", |
| strerror (-ret), ret); |
| return FALSE; |
| } |
| |
| return TRUE; |
| } |
| |
| GstMemory * |
| gst_kms_allocator_bo_alloc (GstAllocator * allocator, GstVideoInfo * vinfo) |
| { |
| GstKMSAllocator *alloc; |
| GstKMSMemory *kmsmem; |
| GstMemory *mem; |
| |
| kmsmem = g_slice_new0 (GstKMSMemory); |
| if (!kmsmem) |
| return NULL; |
| |
| alloc = GST_KMS_ALLOCATOR (allocator); |
| |
| mem = GST_MEMORY_CAST (kmsmem); |
| |
| if (!gst_kms_allocator_memory_create (alloc, kmsmem, vinfo)) { |
| g_slice_free (GstKMSMemory, kmsmem); |
| return NULL; |
| } |
| |
| gst_memory_init (mem, GST_MEMORY_FLAG_NO_SHARE, allocator, NULL, |
| kmsmem->bo->size, 0, 0, GST_VIDEO_INFO_SIZE (vinfo)); |
| |
| if (!gst_kms_allocator_add_fb (alloc, kmsmem, 0, vinfo->offset, vinfo)) |
| goto fail; |
| |
| return mem; |
| |
| /* ERRORS */ |
| fail: |
| gst_memory_unref (mem); |
| return NULL; |
| } |
| |
| GstKMSMemory * |
| gst_kms_allocator_dmabuf_import (GstAllocator * allocator, gint * prime_fds, |
| gint n_planes, gint64 drm_modifier, gsize offsets[GST_VIDEO_MAX_PLANES], GstVideoInfo * vinfo) |
| { |
| GstKMSAllocator *alloc; |
| GstKMSMemory *kmsmem; |
| GstMemory *mem; |
| gint i, ret; |
| |
| g_return_val_if_fail (n_planes <= GST_VIDEO_MAX_PLANES, FALSE); |
| |
| kmsmem = g_slice_new0 (GstKMSMemory); |
| if (!kmsmem) |
| return FALSE; |
| |
| mem = GST_MEMORY_CAST (kmsmem); |
| gst_memory_init (mem, GST_MEMORY_FLAG_NO_SHARE, allocator, NULL, |
| GST_VIDEO_INFO_SIZE (vinfo), 0, 0, GST_VIDEO_INFO_SIZE (vinfo)); |
| |
| alloc = GST_KMS_ALLOCATOR (allocator); |
| for (i = 0; i < n_planes; i++) { |
| ret = drmPrimeFDToHandle (alloc->priv->fd, prime_fds[i], |
| &kmsmem->gem_handle[i]); |
| if (ret) |
| goto import_fd_failed; |
| } |
| |
| if (!gst_kms_allocator_add_fb (alloc, kmsmem, drm_modifier, offsets, vinfo)) |
| goto failed; |
| |
| for (i = 0; i < n_planes; i++) { |
| struct drm_gem_close arg = { kmsmem->gem_handle[i], }; |
| gint err; |
| |
| err = drmIoctl (alloc->priv->fd, DRM_IOCTL_GEM_CLOSE, &arg); |
| if (err) |
| GST_WARNING_OBJECT (allocator, |
| "Failed to close GEM handle: %s %d", strerror (errno), errno); |
| |
| kmsmem->gem_handle[i] = 0; |
| } |
| |
| return kmsmem; |
| |
| /* ERRORS */ |
| import_fd_failed: |
| { |
| GST_ERROR_OBJECT (alloc, "Failed to import prime fd %d: %s (%d)", |
| prime_fds[i], strerror (-ret), ret); |
| /* fallback */ |
| } |
| |
| failed: |
| { |
| gst_memory_unref (mem); |
| return NULL; |
| } |
| } |
| |
| GstMemory * |
| gst_kms_allocator_dmabuf_export (GstAllocator * allocator, GstMemory * _kmsmem) |
| { |
| GstKMSMemory *kmsmem = (GstKMSMemory *) _kmsmem; |
| GstKMSAllocator *alloc = GST_KMS_ALLOCATOR (allocator); |
| GstMemory *mem; |
| gint ret; |
| gint prime_fd; |
| |
| /* We can only export DUMB buffers */ |
| g_return_val_if_fail (kmsmem->bo, NULL); |
| |
| |
| ret = drmPrimeHandleToFD (alloc->priv->fd, kmsmem->bo->handle, |
| DRM_CLOEXEC | DRM_RDWR, &prime_fd); |
| if (ret) |
| goto export_fd_failed; |
| |
| if (G_UNLIKELY (alloc->priv->dmabuf_alloc == NULL)) |
| alloc->priv->dmabuf_alloc = gst_dmabuf_allocator_new (); |
| |
| mem = gst_dmabuf_allocator_alloc (alloc->priv->dmabuf_alloc, prime_fd, |
| gst_memory_get_sizes (_kmsmem, NULL, NULL)); |
| |
| /* 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", kmsmem->bo->handle, |
| prime_fd); |
| |
| return mem; |
| |
| /* ERRORS */ |
| export_fd_failed: |
| { |
| GST_ERROR_OBJECT (alloc, "Failed to export bo handle %d: %s (%d)", |
| kmsmem->bo->handle, g_strerror (errno), ret); |
| 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); |
| } |