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buffer: drop wlr_shm_client_buffer

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It's been superseded by wlr_shm.
This commit is contained in:
Simon Ser 2022-09-17 14:52:16 +02:00 committed by Simon Zeni
parent da3616d183
commit 6c277e3c39
4 changed files with 1 additions and 157 deletions
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22
include/types/wlr_buffer.h
View file

@ -3,28 +3,6 @@
#include <wlr/types/wlr_buffer.h>
struct wlr_shm_client_buffer {
struct wlr_buffer base;
uint32_t format;
size_t stride;
// The following fields are NULL if the client has destroyed the wl_buffer
struct wl_resource *resource;
struct wl_shm_buffer *shm_buffer;
// This is used to keep the backing storage alive after the client has
// destroyed the wl_buffer
struct wl_shm_pool *saved_shm_pool;
void *saved_data;
struct wl_listener resource_destroy;
struct wl_listener release;
};
struct wlr_shm_client_buffer *shm_client_buffer_get_or_create(
struct wl_resource *resource);
/**
* A read-only buffer that holds a data pointer.
*

10
types/buffer/resource.c
View file

@ -49,15 +49,7 @@ struct wlr_buffer *wlr_buffer_from_resource(struct wl_resource *resource) {
assert(resource && wlr_resource_is_buffer(resource));
struct wlr_buffer *buffer;
if (wl_shm_buffer_get(resource) != NULL) {
struct wlr_shm_client_buffer *shm_client_buffer =
shm_client_buffer_get_or_create(resource);
if (shm_client_buffer == NULL) {
wlr_log(WLR_ERROR, "Failed to create shm client buffer");
return NULL;
}
buffer = wlr_buffer_lock(&shm_client_buffer->base);
} else if (wlr_dmabuf_v1_resource_is_buffer(resource)) {
if (wlr_dmabuf_v1_resource_is_buffer(resource)) {
struct wlr_dmabuf_v1_buffer *dmabuf =
wlr_dmabuf_v1_buffer_from_buffer_resource(resource);
buffer = wlr_buffer_lock(&dmabuf->base);

125
types/buffer/shm_client.c
View file

@ -1,125 +0,0 @@
#include <assert.h>
#include <stdlib.h>
#include <wayland-server.h>
#include <wlr/interfaces/wlr_buffer.h>
#include "render/pixel_format.h"
#include "types/wlr_buffer.h"
static const struct wlr_buffer_impl shm_client_buffer_impl;
static bool buffer_is_shm_client_buffer(struct wlr_buffer *buffer) {
return buffer->impl == &shm_client_buffer_impl;
}
static struct wlr_shm_client_buffer *shm_client_buffer_from_buffer(
struct wlr_buffer *buffer) {
assert(buffer_is_shm_client_buffer(buffer));
return (struct wlr_shm_client_buffer *)buffer;
}
static void shm_client_buffer_destroy(struct wlr_buffer *wlr_buffer) {
struct wlr_shm_client_buffer *buffer =
shm_client_buffer_from_buffer(wlr_buffer);
wl_list_remove(&buffer->resource_destroy.link);
wl_list_remove(&buffer->release.link);
if (buffer->saved_shm_pool != NULL) {
wl_shm_pool_unref(buffer->saved_shm_pool);
}
free(buffer);
}
static bool shm_client_buffer_begin_data_ptr_access(struct wlr_buffer *wlr_buffer,
uint32_t flags, void **data, uint32_t *format, size_t *stride) {
struct wlr_shm_client_buffer *buffer =
shm_client_buffer_from_buffer(wlr_buffer);
*format = buffer->format;
*stride = buffer->stride;
if (buffer->shm_buffer != NULL) {
*data = wl_shm_buffer_get_data(buffer->shm_buffer);
wl_shm_buffer_begin_access(buffer->shm_buffer);
} else {
*data = buffer->saved_data;
}
return true;
}
static void shm_client_buffer_end_data_ptr_access(struct wlr_buffer *wlr_buffer) {
struct wlr_shm_client_buffer *buffer =
shm_client_buffer_from_buffer(wlr_buffer);
if (buffer->shm_buffer != NULL) {
wl_shm_buffer_end_access(buffer->shm_buffer);
}
}
static const struct wlr_buffer_impl shm_client_buffer_impl = {
.destroy = shm_client_buffer_destroy,
.begin_data_ptr_access = shm_client_buffer_begin_data_ptr_access,
.end_data_ptr_access = shm_client_buffer_end_data_ptr_access,
};
static void shm_client_buffer_resource_handle_destroy(
struct wl_listener *listener, void *data) {
struct wlr_shm_client_buffer *buffer =
wl_container_of(listener, buffer, resource_destroy);
// In order to still be able to access the shared memory region, we need to
// keep a reference to the wl_shm_pool
buffer->saved_shm_pool = wl_shm_buffer_ref_pool(buffer->shm_buffer);
buffer->saved_data = wl_shm_buffer_get_data(buffer->shm_buffer);
// The wl_shm_buffer destroys itself with the wl_resource
buffer->resource = NULL;
buffer->shm_buffer = NULL;
wl_list_remove(&buffer->resource_destroy.link);
wl_list_init(&buffer->resource_destroy.link);
// This might destroy the buffer
wlr_buffer_drop(&buffer->base);
}
static void shm_client_buffer_handle_release(struct wl_listener *listener,
void *data) {
struct wlr_shm_client_buffer *buffer =
wl_container_of(listener, buffer, release);
if (buffer->resource != NULL) {
wl_buffer_send_release(buffer->resource);
}
}
struct wlr_shm_client_buffer *shm_client_buffer_get_or_create(
struct wl_resource *resource) {
struct wl_shm_buffer *shm_buffer = wl_shm_buffer_get(resource);
assert(shm_buffer != NULL);
struct wl_listener *resource_destroy_listener =
wl_resource_get_destroy_listener(resource,
shm_client_buffer_resource_handle_destroy);
if (resource_destroy_listener != NULL) {
struct wlr_shm_client_buffer *buffer =
wl_container_of(resource_destroy_listener, buffer, resource_destroy);
return buffer;
}
int32_t width = wl_shm_buffer_get_width(shm_buffer);
int32_t height = wl_shm_buffer_get_height(shm_buffer);
struct wlr_shm_client_buffer *buffer = calloc(1, sizeof(*buffer));
if (buffer == NULL) {
return NULL;
}
wlr_buffer_init(&buffer->base, &shm_client_buffer_impl, width, height);
buffer->resource = resource;
buffer->shm_buffer = shm_buffer;
enum wl_shm_format wl_shm_format = wl_shm_buffer_get_format(shm_buffer);
buffer->format = convert_wl_shm_format_to_drm(wl_shm_format);
buffer->stride = wl_shm_buffer_get_stride(shm_buffer);
buffer->resource_destroy.notify = shm_client_buffer_resource_handle_destroy;
wl_resource_add_destroy_listener(resource, &buffer->resource_destroy);
buffer->release.notify = shm_client_buffer_handle_release;
wl_signal_add(&buffer->base.events.release, &buffer->release);
return buffer;
}

1
types/meson.build
View file

@ -33,7 +33,6 @@ wlr_files += files(
'buffer/dmabuf.c',
'buffer/readonly_data.c',
'buffer/resource.c',
'buffer/shm_client.c',
'wlr_compositor.c',
'wlr_content_type_v1.c',
'wlr_cursor.c',