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screen-cast: Implement query_modifiers

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This function contains a stub, which returns support for implicit
modifiers, if modifiers are supported preserving the current
capabilities. The stub has to be replaced with a query to the cogl
renderer to support explicit modifiers.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2557>
This commit is contained in:
columbarius 2022-08-06 17:30:45 +02:00
parent cd84b478b4
commit 265a17e01c
2 changed files with 55 additions and 0 deletions
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50
src/backends/meta-screen-cast.c
View File

@ -24,6 +24,10 @@
#include <pipewire/pipewire.h>
#ifdef HAVE_NATIVE_BACKEND
#include <drm_fourcc.h>
#endif
#include "backends/meta-backend-private.h"
#include "backends/meta-remote-desktop-session.h"
#include "backends/meta-screen-cast-session.h"
@ -56,6 +60,52 @@ meta_screen_cast_disable_dma_bufs (MetaScreenCast *screen_cast)
screen_cast->disable_dma_bufs = TRUE;
}
bool
meta_screen_cast_query_modifiers (MetaScreenCast *screen_cast,
CoglPixelFormat format,
uint64_t **modifiers,
int *n_modifiers)
{
MetaDbusSessionManager *session_manager =
META_DBUS_SESSION_MANAGER (screen_cast);
MetaBackend *backend =
meta_dbus_session_manager_get_backend (session_manager);
ClutterBackend *clutter_backend =
meta_backend_get_clutter_backend (backend);
CoglContext *cogl_context =
clutter_backend_get_cogl_context (clutter_backend);
CoglRenderer *cogl_renderer = cogl_context_get_renderer (cogl_context);
g_autoptr (GError) error = NULL;
bool ret;
if (screen_cast->disable_dma_bufs)
return FALSE;
if (!cogl_renderer_is_dma_buf_supported (cogl_renderer))
return FALSE;
// TODO: query cogl_renderer for modifiers
// BEGIN stub
#ifdef HAVE_NATIVE_BACKEND
uint64_t *modifier_list;
modifier_list = calloc (1, sizeof (uint64_t));
modifier_list[0] = DRM_FORMAT_MOD_INVALID;
*modifiers = modifier_list;
*n_modifiers = 1;
ret = TRUE;
#else
ret = FALSE;
#endif
// END stub
if (!ret)
g_warning ("Failed to query supported modifiers: %s",
error->message);
return ret;
}
CoglDmaBufHandle *
meta_screen_cast_create_dma_buf_handle (MetaScreenCast *screen_cast,
CoglPixelFormat format,

5
src/backends/meta-screen-cast.h
View File

@ -51,6 +51,11 @@ MetaBackend * meta_screen_cast_get_backend (MetaScreenCast *screen_cast);
void meta_screen_cast_disable_dma_bufs (MetaScreenCast *screen_cast);
bool meta_screen_cast_query_modifiers (MetaScreenCast *screen_cast,
CoglPixelFormat format,
uint64_t **modifiers,
int *n_modifiers);
CoglDmaBufHandle * meta_screen_cast_create_dma_buf_handle (MetaScreenCast *screen_cast,
CoglPixelFormat format,
int width,