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wayland/shm: Add ARGB2101010 formats and friends

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In order to get higher color pixel precision when the alpha channel is
less important. Only advertise these formats if it is supported by the
used cogl renderer.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/804
This commit is contained in:
Jonas Ådahl 2019-09-18 16:38:20 +02:00 committed by Robert Mader
parent 2d6040e2a3
commit 115de303b0
1 changed files with 41 additions and 1 deletions
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40
src/wayland/meta-wayland-buffer.c
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@ -217,6 +217,18 @@ shm_format_to_cogl_pixel_format (enum wl_shm_format shm_format,
format = COGL_PIXEL_FORMAT_BGRA_8888;
components = COGL_TEXTURE_COMPONENTS_RGB;
break;
case WL_SHM_FORMAT_XRGB2101010:
components = COGL_TEXTURE_COMPONENTS_RGB;
G_GNUC_FALLTHROUGH;
case WL_SHM_FORMAT_ARGB2101010:
format = COGL_PIXEL_FORMAT_ARGB_2101010_PRE;
break;
case WL_SHM_FORMAT_XBGR2101010:
components = COGL_TEXTURE_COMPONENTS_RGB;
G_GNUC_FALLTHROUGH;
case WL_SHM_FORMAT_ABGR2101010:
format = COGL_PIXEL_FORMAT_ABGR_2101010_PRE;
break;
#endif
default:
return FALSE;
@ -235,6 +247,10 @@ shm_buffer_get_cogl_pixel_format (struct wl_shm_buffer *shm_buffer,
CoglPixelFormat *format_out,
CoglTextureComponents *components_out)
{
MetaBackend *backend = meta_get_backend ();
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
CoglContext *cogl_context =
clutter_backend_get_cogl_context (clutter_backend);
CoglPixelFormat cogl_format;
CoglTextureComponents cogl_components;
@ -243,6 +259,9 @@ shm_buffer_get_cogl_pixel_format (struct wl_shm_buffer *shm_buffer,
&cogl_components))
return FALSE;
if (!cogl_context_format_supports_upload (cogl_context, cogl_format))
return FALSE;
if (format_out)
*format_out = cogl_format;
if (components_out)
@ -745,9 +764,18 @@ meta_wayland_buffer_class_init (MetaWaylandBufferClass *klass)
void
meta_wayland_init_shm (MetaWaylandCompositor *compositor)
{
MetaBackend *backend = meta_get_backend ();
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
CoglContext *cogl_context =
clutter_backend_get_cogl_context (clutter_backend);
static const enum wl_shm_format shm_formats[] = {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
WL_SHM_FORMAT_RGB565,
WL_SHM_FORMAT_ARGB2101010,
WL_SHM_FORMAT_XRGB2101010,
WL_SHM_FORMAT_ABGR2101010,
WL_SHM_FORMAT_XBGR2101010,
#endif
};
int i;
@ -755,5 +783,17 @@ meta_wayland_init_shm (MetaWaylandCompositor *compositor)
wl_display_init_shm (compositor->wayland_display);
for (i = 0; i < G_N_ELEMENTS (shm_formats); i++)
{
CoglPixelFormat cogl_format;
if (!shm_format_to_cogl_pixel_format (shm_formats[i],
&cogl_format,
NULL))
continue;
if (!cogl_context_format_supports_upload (cogl_context, cogl_format))
continue;
wl_display_add_shm_format (compositor->wayland_display, shm_formats[i]);
}
}