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109 lines
4.7 KiB
109 lines
4.7 KiB
From 914fd2bec65c2e9928b03d5bc94930bc0151f998 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
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Date: Wed, 17 Jun 2020 17:48:05 +0200
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Subject: [PATCH 3/4] screen-cast: Move DMA buffer allocation to MetaScreenCast
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The aim with centralizing it is to be able to apply global policy to DMA
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buffer allocations, e.g. disabling due to various hueristics.
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https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1318
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---
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src/backends/meta-screen-cast-stream-src.c | 18 ++++++--------
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src/backends/meta-screen-cast.c | 28 ++++++++++++++++++++++
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src/backends/meta-screen-cast.h | 4 ++++
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3 files changed, 39 insertions(+), 11 deletions(-)
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diff --git a/src/backends/meta-screen-cast-stream-src.c b/src/backends/meta-screen-cast-stream-src.c
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index ff4af440c1..b77186415f 100644
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--- a/src/backends/meta-screen-cast-stream-src.c
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+++ b/src/backends/meta-screen-cast-stream-src.c
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@@ -649,10 +649,10 @@ on_stream_add_buffer (void *data,
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MetaScreenCastStreamSrc *src = data;
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MetaScreenCastStreamSrcPrivate *priv =
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meta_screen_cast_stream_src_get_instance_private (src);
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- CoglContext *context =
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- clutter_backend_get_cogl_context (clutter_get_default_backend ());
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- CoglRenderer *renderer = cogl_context_get_renderer (context);
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- g_autoptr (GError) error = NULL;
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+ MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
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+ MetaScreenCastSession *session = meta_screen_cast_stream_get_session (stream);
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+ MetaScreenCast *screen_cast =
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+ meta_screen_cast_session_get_screen_cast (session);
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CoglDmaBufHandle *dmabuf_handle;
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struct spa_buffer *spa_buffer = buffer->buffer;
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struct spa_data *spa_data = spa_buffer->datas;
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@@ -664,13 +664,9 @@ on_stream_add_buffer (void *data,
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spa_data[0].mapoffset = 0;
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spa_data[0].maxsize = stride * priv->video_format.size.height;
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- dmabuf_handle = cogl_renderer_create_dma_buf (renderer,
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- priv->stream_width,
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- priv->stream_height,
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- &error);
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-
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- if (error)
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- g_debug ("Error exporting DMA buffer handle: %s", error->message);
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+ dmabuf_handle = meta_screen_cast_create_dma_buf_handle (screen_cast,
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+ priv->stream_width,
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+ priv->stream_height);
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if (dmabuf_handle)
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{
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diff --git a/src/backends/meta-screen-cast.c b/src/backends/meta-screen-cast.c
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index 46bc268389..5f1ca8b5ca 100644
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--- a/src/backends/meta-screen-cast.c
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+++ b/src/backends/meta-screen-cast.c
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@@ -94,6 +94,34 @@ meta_screen_cast_get_backend (MetaScreenCast *screen_cast)
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return screen_cast->backend;
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}
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+CoglDmaBufHandle *
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+meta_screen_cast_create_dma_buf_handle (MetaScreenCast *screen_cast,
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+ int width,
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+ int height)
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+{
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+ ClutterBackend *clutter_backend =
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+ meta_backend_get_clutter_backend (screen_cast->backend);
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+ CoglContext *cogl_context =
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+ clutter_backend_get_cogl_context (clutter_backend);
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+ CoglRenderer *cogl_renderer = cogl_context_get_renderer (cogl_context);
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+ g_autoptr (GError) error = NULL;
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+ CoglDmaBufHandle *dmabuf_handle;
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+
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+ dmabuf_handle = cogl_renderer_create_dma_buf (cogl_renderer,
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+ width, height,
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+ &error);
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+ if (!dmabuf_handle)
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+ {
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+ g_warning ("Failed to allocate DMA buffer, "
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+ "disabling DMA buffer based screen casting: %s",
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+ error->message);
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+ screen_cast->disable_dma_bufs = TRUE;
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+ return NULL;
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+ }
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+
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+ return dmabuf_handle;
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+}
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+
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static gboolean
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register_remote_desktop_screen_cast_session (MetaScreenCastSession *session,
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const char *remote_desktop_session_id,
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diff --git a/src/backends/meta-screen-cast.h b/src/backends/meta-screen-cast.h
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index a3b650cd80..fb5a38f34f 100644
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--- a/src/backends/meta-screen-cast.h
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+++ b/src/backends/meta-screen-cast.h
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@@ -50,6 +50,10 @@ GDBusConnection * meta_screen_cast_get_connection (MetaScreenCast *screen_cast);
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MetaBackend * meta_screen_cast_get_backend (MetaScreenCast *screen_cast);
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+CoglDmaBufHandle * meta_screen_cast_create_dma_buf_handle (MetaScreenCast *screen_cast,
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+ int width,
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+ int height);
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+
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MetaScreenCast * meta_screen_cast_new (MetaBackend *backend,
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MetaDbusSessionWatcher *session_watcher);
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--
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2.26.2
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