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Add wl_shm_buffer_create()

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This commit is contained in:
Kristian Høgsberg 2012-08-15 23:03:21 -04:00
parent c855d6eec4
commit 7d3ccec18e
2 changed files with 50 additions and 1 deletions
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5
src/wayland-server.h
View file

@ -440,6 +440,11 @@ wl_buffer_is_shm(struct wl_buffer *buffer);
int
wl_display_init_shm(struct wl_display *display);
struct wl_buffer *
wl_shm_buffer_create(struct wl_client *client,
uint32_t id, int32_t width, int32_t height,
int32_t stride, uint32_t format);
void wl_log_set_handler_server(wl_log_func_t handler);
#ifdef __cplusplus

46
src/wayland-shm.c
View file

@ -255,6 +255,47 @@ wl_display_init_shm(struct wl_display *display)
return 0;
}
WL_EXPORT struct wl_buffer *
wl_shm_buffer_create(struct wl_client *client,
uint32_t id, int32_t width, int32_t height,
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:
return NULL;
}
buffer = malloc(sizeof *buffer + stride * height);
if (buffer == NULL)
return NULL;
buffer->buffer.width = width;
buffer->buffer.height = height;
buffer->buffer.busy_count = 0;
buffer->format = format;
buffer->stride = stride;
buffer->offset = 0;
buffer->pool = NULL;
buffer->buffer.resource.object.id = id;
buffer->buffer.resource.object.interface = &wl_buffer_interface;
buffer->buffer.resource.object.implementation = (void (**)(void))
&shm_buffer_interface;
buffer->buffer.resource.data = buffer;
buffer->buffer.resource.client = client;
buffer->buffer.resource.destroy = destroy_buffer;
wl_client_add_resource(client, &buffer->buffer.resource);
return &buffer->buffer;
}
WL_EXPORT int
wl_buffer_is_shm(struct wl_buffer *buffer)
{
@ -281,7 +322,10 @@ wl_shm_buffer_get_data(struct wl_buffer *buffer_base)
if (!wl_buffer_is_shm(buffer_base))
return NULL;
return buffer->pool->data + buffer->offset;
if (buffer->pool)
return buffer->pool->data + buffer->offset;
else
return buffer + 1;
}
WL_EXPORT uint32_t