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shm: Add API for renderers to register additional pixel formats

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This commit is contained in:
Tomeu Vizoso 2013-08-06 20:05:53 +02:00 • committed by Kristian Høgsberg
parent dbeb5134fa
commit d9883a6be1
4 changed files with 58 additions and 13 deletions
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45
src/wayland-shm.c
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@ -83,6 +83,27 @@ static const struct wl_buffer_interface shm_buffer_interface = {
shm_buffer_destroy
};
static int
format_is_supported(struct wl_client *client, uint32_t format)
{
struct wl_display *display = wl_client_get_display(client);
struct wl_array *formats;
uint32_t *p;
switch (format) {
case WL_SHM_FORMAT_ARGB8888:
case WL_SHM_FORMAT_XRGB8888:
return 1;
default:
formats = wl_display_get_additional_shm_formats(display);
wl_array_for_each(p, formats)
if(*p == format)
return 1;
}
return 0;
}
static void
shm_pool_create_buffer(struct wl_client *client, struct wl_resource *resource,
uint32_t id, int32_t offset,
@ -92,14 +113,10 @@ shm_pool_create_buffer(struct wl_client *client, struct wl_resource *resource,
struct wl_shm_pool *pool = wl_resource_get_user_data(resource);
struct wl_shm_buffer *buffer;
switch (format) {
case WL_SHM_FORMAT_ARGB8888:
case WL_SHM_FORMAT_XRGB8888:
break;
default:
if (!format_is_supported(client, format)) {
wl_resource_post_error(resource,
WL_SHM_ERROR_INVALID_FORMAT,
"invalid format");
"invalid format 0x%x", format);
return;
}
@ -242,6 +259,9 @@ bind_shm(struct wl_client *client,
void *data, uint32_t version, uint32_t id)
{
struct wl_resource *resource;
struct wl_display *display = wl_client_get_display(client);
struct wl_array *additional_formats;
uint32_t *p;
resource = wl_resource_create(client, &wl_shm_interface, 1, id);
if (!resource) {
@ -253,6 +273,10 @@ bind_shm(struct wl_client *client,
wl_shm_send_format(resource, WL_SHM_FORMAT_ARGB8888);
wl_shm_send_format(resource, WL_SHM_FORMAT_XRGB8888);
additional_formats = wl_display_get_additional_shm_formats(display);
wl_array_for_each(p, additional_formats)
wl_shm_send_format(resource, *p);
}
WL_EXPORT int
@ -270,14 +294,9 @@ wl_shm_buffer_create(struct wl_client *client,
int32_t stride, uint32_t format)
{
struct wl_shm_buffer *buffer;
switch (format) {
case WL_SHM_FORMAT_ARGB8888:
case WL_SHM_FORMAT_XRGB8888:
break;
default:
if (!format_is_supported(client, format))
return NULL;
}
buffer = malloc(sizeof *buffer + stride * height);
if (buffer == NULL)