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784b1750c42eea17901bf5d2a9707f8989841cf8
mutter/src/wayland/meta-wayland-buffer.c
Niels De Graef 784b1750c4 wayland: Support complex (YUV) pixel formats 
In the previous commits, we added the possibility to use pixel formats
which are complex (YUV-based and/or multi-planar) inside Cogl. Use this
new feature by assuming we get a CoglMultiPlaneTexture, rather than a
"simple" CoglTexture.

To easily test whether this works, one can use GStreamer pipelines
(you'll need gst-plugins-bad for this to work):

For normal BGRA (this should already work before this commit):

```
$ gst-launch-1.0 videotestsrc ! "video/x-raw" ! waylandsink
```

For NV12 (a popular video format):

```
$ gst-launch-1.0 videotestsrc ! "video/x-raw,format=NV12" ! waylandsink
```

For YUV 4:2:2 (another video format):

```
$ gst-launch-1.0 videotestsrc ! "video/x-raw,format=Y42B" ! waylandsink
```

You can also replace with other video sinks, like `vaapisink`.

`glimagesink` also works, but for some reason seems to unconditionally
convert to RGBA before submitting a texture (so it doesn't do a lot
really).

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=705514
2019-06-24 15:14:01 +02:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2014 Endless Mobile
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Written by:
* Jasper St. Pierre <jstpierre@mecheye.net>
*/
#include "config.h"
#include "wayland/meta-wayland-buffer.h"
#include <drm_fourcc.h>
#include "backends/meta-backend-private.h"
#include "clutter/clutter.h"
#include "cogl/cogl-egl.h"
#include "meta/util.h"
#include "wayland/meta-wayland-dma-buf.h"
#ifndef DRM_FORMAT_MOD_INVALID
#define DRM_FORMAT_MOD_INVALID ((1ULL << 56) - 1)
#endif
enum
{
RESOURCE_DESTROYED,
LAST_SIGNAL
};
guint signals[LAST_SIGNAL];
G_DEFINE_TYPE (MetaWaylandBuffer, meta_wayland_buffer, G_TYPE_OBJECT);
static void
meta_wayland_buffer_destroy_handler (struct wl_listener *listener,
void *data)
{
MetaWaylandBuffer *buffer =
wl_container_of (listener, buffer, destroy_listener);
buffer->resource = NULL;
g_signal_emit (buffer, signals[RESOURCE_DESTROYED], 0);
g_object_unref (buffer);
}
MetaWaylandBuffer *
meta_wayland_buffer_from_resource (struct wl_resource *resource)
{
MetaWaylandBuffer *buffer;
struct wl_listener *listener;
listener =
wl_resource_get_destroy_listener (resource,
meta_wayland_buffer_destroy_handler);
if (listener)
{
buffer = wl_container_of (listener, buffer, destroy_listener);
}
else
{
buffer = g_object_new (META_TYPE_WAYLAND_BUFFER, NULL);
buffer->resource = resource;
buffer->destroy_listener.notify = meta_wayland_buffer_destroy_handler;
wl_resource_add_destroy_listener (resource, &buffer->destroy_listener);
}
return buffer;
}
struct wl_resource *
meta_wayland_buffer_get_resource (MetaWaylandBuffer *buffer)
{
return buffer->resource;
}
gboolean
meta_wayland_buffer_is_realized (MetaWaylandBuffer *buffer)
{
return buffer->type != META_WAYLAND_BUFFER_TYPE_UNKNOWN;
}
gboolean
meta_wayland_buffer_realize (MetaWaylandBuffer *buffer)
{
EGLint format;
MetaBackend *backend = meta_get_backend ();
MetaEgl *egl = meta_backend_get_egl (backend);
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
CoglContext *cogl_context = clutter_backend_get_cogl_context (clutter_backend);
EGLDisplay egl_display = cogl_egl_context_get_egl_display (cogl_context);
#ifdef HAVE_WAYLAND_EGLSTREAM
MetaWaylandEglStream *stream;
#endif
MetaWaylandDmaBufBuffer *dma_buf;
if (wl_shm_buffer_get (buffer->resource) != NULL)
{
buffer->type = META_WAYLAND_BUFFER_TYPE_SHM;
return TRUE;
}
#ifdef HAVE_WAYLAND_EGLSTREAM
stream = meta_wayland_egl_stream_new (buffer, NULL);
if (stream)
{
CoglMultiPlaneTexture *texture;
texture = meta_wayland_egl_stream_create_texture (stream, NULL);
if (!texture)
return FALSE;
buffer->egl_stream.stream = stream;
buffer->type = META_WAYLAND_BUFFER_TYPE_EGL_STREAM;
buffer->egl_stream.texture = texture;
buffer->is_y_inverted = meta_wayland_egl_stream_is_y_inverted (stream);
return TRUE;
}
#endif /* HAVE_WAYLAND_EGLSTREAM */
if (meta_egl_query_wayland_buffer (egl, egl_display, buffer->resource,
EGL_TEXTURE_FORMAT, &format,
NULL))
{
buffer->type = META_WAYLAND_BUFFER_TYPE_EGL_IMAGE;
return TRUE;
}
dma_buf = meta_wayland_dma_buf_from_buffer (buffer);
if (dma_buf)
{
buffer->dma_buf.dma_buf = dma_buf;
buffer->type = META_WAYLAND_BUFFER_TYPE_DMA_BUF;
return TRUE;
}
return FALSE;
}
static void
shm_buffer_get_cogl_pixel_format (struct wl_shm_buffer *shm_buffer,
CoglPixelFormat *format_out,
CoglTextureComponents *components_out)
{
CoglPixelFormat format;
switch (wl_shm_buffer_get_format (shm_buffer))
{
#if G_BYTE_ORDER == G_BIG_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
format = COGL_PIXEL_FORMAT_ARGB_8888_PRE;
components_out[0] = COGL_TEXTURE_COMPONENTS_RGBA;
break;
case WL_SHM_FORMAT_XRGB8888:
format = COGL_PIXEL_FORMAT_ARGB_8888;
components_out[0] = COGL_TEXTURE_COMPONENTS_RGB;
break;
#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
format = COGL_PIXEL_FORMAT_BGRA_8888_PRE;
components_out[0] = COGL_TEXTURE_COMPONENTS_RGBA;
break;
case WL_SHM_FORMAT_XRGB8888:
format = COGL_PIXEL_FORMAT_BGRA_8888;
components_out[0] = COGL_TEXTURE_COMPONENTS_RGB;
break;
#endif
case WL_SHM_FORMAT_NV12:
format = COGL_PIXEL_FORMAT_NV12;
components_out[0] = COGL_TEXTURE_COMPONENTS_R;
components_out[1] = COGL_TEXTURE_COMPONENTS_RG;
break;
case WL_SHM_FORMAT_NV21:
format = COGL_PIXEL_FORMAT_NV21;
components_out[0] = COGL_TEXTURE_COMPONENTS_R;
components_out[1] = COGL_TEXTURE_COMPONENTS_RG;
break;
case WL_SHM_FORMAT_YUV422:
format = COGL_PIXEL_FORMAT_YUV422;
components_out[0] = COGL_TEXTURE_COMPONENTS_R;
components_out[1] = COGL_TEXTURE_COMPONENTS_R;
components_out[2] = COGL_TEXTURE_COMPONENTS_R;
break;
case WL_SHM_FORMAT_YVU422:
format = COGL_PIXEL_FORMAT_YVU422;
components_out[0] = COGL_TEXTURE_COMPONENTS_R;
components_out[1] = COGL_TEXTURE_COMPONENTS_R;
components_out[2] = COGL_TEXTURE_COMPONENTS_R;
break;
case WL_SHM_FORMAT_YUV444:
format = COGL_PIXEL_FORMAT_YUV444;
components_out[0] = COGL_TEXTURE_COMPONENTS_R;
components_out[1] = COGL_TEXTURE_COMPONENTS_R;
components_out[2] = COGL_TEXTURE_COMPONENTS_R;
break;
case WL_SHM_FORMAT_YVU444:
format = COGL_PIXEL_FORMAT_YVU444;
components_out[0] = COGL_TEXTURE_COMPONENTS_R;
components_out[1] = COGL_TEXTURE_COMPONENTS_R;
components_out[2] = COGL_TEXTURE_COMPONENTS_R;
break;
default:
g_warn_if_reached ();
format = COGL_PIXEL_FORMAT_ARGB_8888;
components_out[0] = COGL_TEXTURE_COMPONENTS_RGBA;
}
if (format_out)
*format_out = format;
}
static gboolean
shm_buffer_attach (MetaWaylandBuffer *buffer,
CoglMultiPlaneTexture **texture,
gboolean *changed_texture,
GError **error)
{
MetaBackend *backend = meta_get_backend ();
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
CoglContext *cogl_context = clutter_backend_get_cogl_context (clutter_backend);
struct wl_shm_buffer *shm_buffer;
int stride, width, height;
CoglPixelFormat format;
CoglTextureComponents components[3];
guint i, n_planes;
uint8_t h_factors[3], v_factors[3], bpp[3];
CoglPixelFormat subformats[3];
gsize plane_offset = 0;
guint8 *data;
GPtrArray *planes;
/* Query the necessary parameters */
shm_buffer = wl_shm_buffer_get (buffer->resource);
stride = wl_shm_buffer_get_stride (shm_buffer);
width = wl_shm_buffer_get_width (shm_buffer);
height = wl_shm_buffer_get_height (shm_buffer);
shm_buffer_get_cogl_pixel_format (shm_buffer, &format, components);
n_planes = cogl_pixel_format_get_n_planes (format);
cogl_pixel_format_get_subsampling_factors (format, h_factors, v_factors);
cogl_pixel_format_get_subformats (format, subformats);
cogl_pixel_format_get_bytes_per_pixel (format, bpp);
if (*texture &&
cogl_multi_plane_texture_get_width (*texture) == width &&
cogl_multi_plane_texture_get_height (*texture) == height &&
/*XXX cogl_texture_get_components (*texture) == components && */
cogl_multi_plane_texture_get_format (*texture) == format)
{
buffer->is_y_inverted = TRUE;
*changed_texture = FALSE;
return TRUE;
}
cogl_clear_object (texture);
/* Safely access the data inside the buffer */
wl_shm_buffer_begin_access (shm_buffer);
data = wl_shm_buffer_get_data (shm_buffer);
planes = g_ptr_array_new_full (n_planes, cogl_object_unref);
for (i = 0; i < n_planes; i++)
{
int plane_stride;
CoglBitmap *plane_bitmap;
CoglTexture *plane_texture;
/* Adjust the stride: map to the amount of pixels and calculate how many
* bytes that takes in the current plane */
plane_stride = (stride / bpp[0]) * bpp[i] / h_factors[i];
/* Define the bitmap that of this plane */
plane_bitmap = cogl_bitmap_new_for_data (cogl_context,
width / h_factors[i],
height / v_factors[i],
subformats[i],
plane_stride,
data + plane_offset);
g_assert (plane_bitmap);
/* Create a texture out of it so we can upload it to the GPU */
plane_texture = COGL_TEXTURE (cogl_texture_2d_new_from_bitmap (plane_bitmap));
/* Separately set the components (necessary for e.g. XRGB, NV12) */
cogl_texture_set_components (plane_texture, components[i]);
if (!cogl_texture_allocate (plane_texture, error))
{
CoglTexture2DSliced *texture_sliced;
cogl_clear_object (&plane_texture);
/* If it didn't work due to an NPOT size, try again with an atlas texture */
if (!g_error_matches (*error, COGL_TEXTURE_ERROR, COGL_TEXTURE_ERROR_SIZE))
{
cogl_object_unref (plane_bitmap);
goto failure;
}
g_clear_error (error);
texture_sliced =
cogl_texture_2d_sliced_new_from_bitmap (plane_bitmap,
COGL_TEXTURE_MAX_WASTE);
plane_texture = COGL_TEXTURE (texture_sliced);
cogl_texture_set_components (plane_texture, components[i]);
if (!cogl_texture_allocate (plane_texture, error))
{
cogl_clear_object (&plane_texture);
goto failure;
}
}
g_ptr_array_add (planes, plane_texture);
/* Calculate the next plane start in the buffer (consider subsampling) */
plane_offset += plane_stride * (height / v_factors[i]);
}
*texture = cogl_multi_plane_texture_new (format,
(CoglTexture **) g_ptr_array_free (planes, FALSE),
n_planes);
wl_shm_buffer_end_access (shm_buffer);
*changed_texture = TRUE;
buffer->is_y_inverted = TRUE;
return TRUE;
failure:
*texture = NULL;
return FALSE;
}
static gboolean
egl_image_buffer_attach (MetaWaylandBuffer *buffer,
CoglMultiPlaneTexture **texture,
gboolean *changed_texture,
GError **error)
{
MetaBackend *backend = meta_get_backend ();
MetaEgl *egl = meta_backend_get_egl (backend);
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
CoglContext *cogl_context = clutter_backend_get_cogl_context (clutter_backend);
EGLDisplay egl_display = cogl_egl_context_get_egl_display (cogl_context);
int format, width, height, y_inverted;
CoglPixelFormat cogl_format;
CoglTextureComponents components[3];
guint i, n_planes;
GPtrArray *planes;
if (buffer->egl_image.texture)
{
*changed_texture = *texture != buffer->egl_image.texture;
cogl_clear_object (texture);
*texture = cogl_object_ref (buffer->egl_image.texture);
return TRUE;
}
/* Query the necessary properties */
if (!meta_egl_query_wayland_buffer (egl, egl_display, buffer->resource,
EGL_TEXTURE_FORMAT, &format,
error))
return FALSE;
if (!meta_egl_query_wayland_buffer (egl, egl_display, buffer->resource,
EGL_WIDTH, &width,
error))
return FALSE;
if (!meta_egl_query_wayland_buffer (egl, egl_display, buffer->resource,
EGL_HEIGHT, &height,
error))
return FALSE;
if (!meta_egl_query_wayland_buffer (egl, egl_display, buffer->resource,
EGL_WAYLAND_Y_INVERTED_WL, &y_inverted,
NULL))
y_inverted = EGL_TRUE;
/* Map the EGL texture format to CoglPixelFormat, if possible */
switch (format)
{
case EGL_TEXTURE_RGB:
cogl_format = COGL_PIXEL_FORMAT_RGB_888;
break;
case EGL_TEXTURE_RGBA:
cogl_format = COGL_PIXEL_FORMAT_RGBA_8888_PRE;
break;
case EGL_TEXTURE_Y_UV_WL:
cogl_format = COGL_PIXEL_FORMAT_NV12;
break;
case EGL_TEXTURE_Y_U_V_WL:
cogl_format = COGL_PIXEL_FORMAT_YUV444;
break;
default:
g_set_error (error, G_IO_ERROR,
G_IO_ERROR_FAILED,
"Unsupported buffer format %d", format);
return FALSE;
}
n_planes = cogl_pixel_format_get_n_planes (cogl_format);
cogl_pixel_format_get_cogl_components (cogl_format, components);
planes = g_ptr_array_new_full (n_planes, cogl_object_unref);
/* Each EGLImage is a plane in the final texture */
for (i = 0; i < n_planes; i++)
{
EGLint egl_attribs[3];
EGLImageKHR egl_img;
CoglTexture2D *texture_2d;
/* Specify that we want the i'th plane */
egl_attribs[0] = EGL_WAYLAND_PLANE_WL;
egl_attribs[1] = i;
egl_attribs[2] = EGL_NONE;
/* The WL_bind_wayland_display spec states that EGL_NO_CONTEXT is to be
* used in conjunction with the EGL_WAYLAND_BUFFER_WL target. */
egl_img = meta_egl_create_image (egl, egl_display, EGL_NO_CONTEXT,
EGL_WAYLAND_BUFFER_WL, buffer->resource,
egl_attribs,
error);
if (G_UNLIKELY (egl_img == EGL_NO_IMAGE_KHR))
goto on_error;
texture_2d = cogl_egl_texture_2d_new_from_image (cogl_context,
width, height,
cogl_format,
components[i],
egl_img,
error);
meta_egl_destroy_image (egl, egl_display, egl_img, NULL);
if (G_UNLIKELY (!texture_2d))
goto on_error;
g_ptr_array_add (planes, texture_2d);
}
buffer->egl_image.texture = cogl_multi_plane_texture_new (cogl_format,
(CoglTexture **) g_ptr_array_free (planes, FALSE),
n_planes);
buffer->is_y_inverted = !!y_inverted;
cogl_clear_object (texture);
*texture = cogl_object_ref (buffer->egl_image.texture);
*changed_texture = TRUE;
return TRUE;
on_error:
g_ptr_array_free (planes, TRUE);
return FALSE;
}
#ifdef HAVE_WAYLAND_EGLSTREAM
static gboolean
egl_stream_buffer_attach (MetaWaylandBuffer *buffer,
CoglMultiPlaneTexture **texture,
gboolean *changed_texture,
GError **error)
{
MetaWaylandEglStream *stream = buffer->egl_stream.stream;
g_assert (stream);
if (!meta_wayland_egl_stream_attach (stream, error))
return FALSE;
*changed_texture = *texture != buffer->egl_stream.texture;
cogl_clear_object (texture);
*texture = cogl_object_ref (buffer->egl_stream.texture);
return TRUE;
}
#endif /* HAVE_WAYLAND_EGLSTREAM */
/**
* meta_wayland_buffer_attach:
* @buffer: a pointer to a #MetaWaylandBuffer
* @texture: (inout) (transfer full): a #CoglTexture representing the surface
* content
* @error: return location for error or %NULL
*
* This function should be passed a pointer to the texture used to draw the
* surface content. The texture will either be replaced by a new texture, or
* stay the same, in which case, it may later be updated with new content when
* processing damage. The new texture might be newly created, or it may be a
* reference to an already existing one.
*
* If replaced, the old texture will have its reference count decreased by one,
* potentially freeing it. When a new texture is set, the caller (i.e. the
* surface) will be the owner of one reference count. It must free it, either
* using g_object_unref() or have it updated again using
* meta_wayland_buffer_attach(), which also might free it, as described above.
*/
gboolean
meta_wayland_buffer_attach (MetaWaylandBuffer *buffer,
CoglMultiPlaneTexture **texture,
gboolean *changed_texture,
GError **error)
{
g_return_val_if_fail (buffer->resource, FALSE);
if (!meta_wayland_buffer_is_realized (buffer))
{
/* The buffer should have been realized at surface commit time */
g_set_error (error, G_IO_ERROR,
G_IO_ERROR_FAILED,
"Unknown buffer type");
return FALSE;
}
switch (buffer->type)
{
case META_WAYLAND_BUFFER_TYPE_SHM:
return shm_buffer_attach (buffer, texture, changed_texture, error);
case META_WAYLAND_BUFFER_TYPE_EGL_IMAGE:
return egl_image_buffer_attach (buffer, texture, changed_texture, error);
#ifdef HAVE_WAYLAND_EGLSTREAM
case META_WAYLAND_BUFFER_TYPE_EGL_STREAM:
return egl_stream_buffer_attach (buffer, texture, changed_texture, error);
#endif
case META_WAYLAND_BUFFER_TYPE_DMA_BUF:
return meta_wayland_dma_buf_buffer_attach (buffer,
texture,
changed_texture,
error);
case META_WAYLAND_BUFFER_TYPE_UNKNOWN:
g_assert_not_reached ();
return FALSE;
}
g_assert_not_reached ();
return FALSE;
}
CoglSnippet *
meta_wayland_buffer_create_snippet (MetaWaylandBuffer *buffer)
{
#ifdef HAVE_WAYLAND_EGLSTREAM
if (!buffer->egl_stream.stream)
return NULL;
return meta_wayland_egl_stream_create_snippet ();
#else
return NULL;
#endif /* HAVE_WAYLAND_EGLSTREAM */
}
gboolean
meta_wayland_buffer_is_y_inverted (MetaWaylandBuffer *buffer)
{
return buffer->is_y_inverted;
}
static gboolean
process_shm_buffer_damage (MetaWaylandBuffer *buffer,
CoglMultiPlaneTexture *texture,
cairo_region_t *region,
GError **error)
{
struct wl_shm_buffer *shm_buffer;
gboolean set_texture_failed = FALSE;
CoglPixelFormat format;
CoglTextureComponents components[3];
uint8_t h_factors[3], v_factors[3], bpp[3];
CoglPixelFormat subformats[3];
gsize plane_offset = 0;
const uint8_t *data;
int32_t stride, height;
uint8_t i, n_planes;
int j, n_rectangles;
n_rectangles = cairo_region_num_rectangles (region);
shm_buffer = wl_shm_buffer_get (buffer->resource);
/* Get the data */
wl_shm_buffer_begin_access (shm_buffer);
data = wl_shm_buffer_get_data (shm_buffer);
/* Query the necessary properties */
stride = wl_shm_buffer_get_stride (shm_buffer);
height = wl_shm_buffer_get_height (shm_buffer);
shm_buffer_get_cogl_pixel_format (shm_buffer, &format, components);
/* Fetch some properties from the pixel format */
n_planes = cogl_multi_plane_texture_get_n_planes (texture);
cogl_pixel_format_get_subformats (format, subformats);
cogl_pixel_format_get_subsampling_factors (format, h_factors, v_factors);
cogl_pixel_format_get_bytes_per_pixel (format, bpp);
for (i = 0; i < n_planes; i++)
{
CoglTexture *plane;
int plane_stride;
plane = cogl_multi_plane_texture_get_plane (texture, i);
plane_stride = (stride / bpp[0]) * bpp[i] / h_factors[i];
for (j = 0; j < n_rectangles; j++)
{
cairo_rectangle_int_t rect;
gsize rect_offset;
cairo_region_get_rectangle (region, j, &rect);
/* It's possible we get a faulty rectangle of size zero: ignore */
if (rect.height == 0 || rect.width == 0)
continue;
rect_offset = plane_offset
+ rect.y * plane_stride / v_factors[i] /* Find the right row */
+ rect.x * bpp[i] / h_factors[i]; /* and the right column */
if (!_cogl_texture_set_region (plane,
rect.width / h_factors[i],
rect.height / v_factors[i],
subformats[i],
plane_stride,
data + rect_offset,
rect.x, rect.y,
0,
error))
{
set_texture_failed = TRUE;
goto out;
}
}
/* Calculate the next plane start in the buffer (consider subsampling) */
plane_offset += plane_stride * (height / v_factors[i]);
}
out:
wl_shm_buffer_end_access (shm_buffer);
return !set_texture_failed;
}
void
meta_wayland_buffer_process_damage (MetaWaylandBuffer *buffer,
CoglMultiPlaneTexture *texture,
cairo_region_t *region)
{
gboolean res = FALSE;
GError *error = NULL;
g_return_if_fail (buffer->resource);
switch (buffer->type)
{
case META_WAYLAND_BUFFER_TYPE_SHM:
res = process_shm_buffer_damage (buffer, texture, region, &error);
break;
case META_WAYLAND_BUFFER_TYPE_EGL_IMAGE:
#ifdef HAVE_WAYLAND_EGLSTREAM
case META_WAYLAND_BUFFER_TYPE_EGL_STREAM:
#endif
case META_WAYLAND_BUFFER_TYPE_DMA_BUF:
res = TRUE;
break;
case META_WAYLAND_BUFFER_TYPE_UNKNOWN:
g_set_error (&error, G_IO_ERROR,
G_IO_ERROR_FAILED,
"Unknown buffer type");
res = FALSE;
break;
}
if (!res)
{
g_warning ("Failed to process Wayland buffer damage: %s", error->message);
g_error_free (error);
}
}
static void
meta_wayland_buffer_finalize (GObject *object)
{
MetaWaylandBuffer *buffer = META_WAYLAND_BUFFER (object);
g_clear_pointer (&buffer->egl_image.texture, cogl_object_unref);
#ifdef HAVE_WAYLAND_EGLSTREAM
g_clear_pointer (&buffer->egl_stream.texture, cogl_object_unref);
g_clear_object (&buffer->egl_stream.stream);
#endif
g_clear_pointer (&buffer->dma_buf.texture, cogl_object_unref);
g_clear_object (&buffer->dma_buf.dma_buf);
G_OBJECT_CLASS (meta_wayland_buffer_parent_class)->finalize (object);
}
static void
meta_wayland_buffer_init (MetaWaylandBuffer *buffer)
{
}
static void
meta_wayland_buffer_class_init (MetaWaylandBufferClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = meta_wayland_buffer_finalize;
signals[RESOURCE_DESTROYED] = g_signal_new ("resource-destroyed",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 0);
}
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