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wayland/shm: Send error if client uses unsupported format

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Instead of rendering incorrectly (we fell back on some arbitrary
format), just send an error.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/804
This commit is contained in:
Jonas Ådahl 2019-09-19 21:54:58 +02:00 committed by Robert Mader
parent d6b5f89a1c
commit 5a8e4da2a8
1 changed files with 35 additions and 8 deletions
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43
src/wayland/meta-wayland-buffer.c
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@ -186,15 +186,15 @@ meta_wayland_buffer_realize (MetaWaylandBuffer *buffer)
return FALSE;
}
static void
shm_buffer_get_cogl_pixel_format (struct wl_shm_buffer *shm_buffer,
CoglPixelFormat *format_out,
CoglTextureComponents *components_out)
static gboolean
shm_format_to_cogl_pixel_format (enum wl_shm_format shm_format,
CoglPixelFormat *format_out,
CoglTextureComponents *components_out)
{
CoglPixelFormat format;
CoglTextureComponents components = COGL_TEXTURE_COMPONENTS_RGBA;
switch (wl_shm_buffer_get_format (shm_buffer))
switch (shm_format)
{
#if G_BYTE_ORDER == G_BIG_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
@ -214,14 +214,36 @@ shm_buffer_get_cogl_pixel_format (struct wl_shm_buffer *shm_buffer,
break;
#endif
default:
g_warn_if_reached ();
format = COGL_PIXEL_FORMAT_ARGB_8888;
return FALSE;
}
if (format_out)
*format_out = format;
if (components_out)
*components_out = components;
return TRUE;
}
static gboolean
shm_buffer_get_cogl_pixel_format (struct wl_shm_buffer *shm_buffer,
CoglPixelFormat *format_out,
CoglTextureComponents *components_out)
{
CoglPixelFormat cogl_format;
CoglTextureComponents cogl_components;
if (!shm_format_to_cogl_pixel_format (wl_shm_buffer_get_format (shm_buffer),
&cogl_format,
&cogl_components))
return FALSE;
if (format_out)
*format_out = cogl_format;
if (components_out)
*components_out = cogl_components;
return TRUE;
}
static gboolean
@ -243,7 +265,12 @@ shm_buffer_attach (MetaWaylandBuffer *buffer,
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);
if (!shm_buffer_get_cogl_pixel_format (shm_buffer, &format, &components))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Invalid shm pixel format");
return FALSE;
}
if (*texture &&
cogl_texture_get_width (*texture) == width &&