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update drwl

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sewn 2024-09-05 20:25:21 +03:00
parent 02c3ac09a6
commit 7956a271dc
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3 changed files with 122 additions and 74 deletions
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120
poolbuf.h
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@ -1,120 +0,0 @@
/*
* poolbuf - https://codeberg.org/sewn/drwl
*
* Copyright (c) 2023-2024 sewn <sewn@disroot.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdlib.h>
#include <stddef.h>
#include <stdint.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#include <wayland-client.h>
#ifdef __linux__
#include <linux/memfd.h>
#endif
typedef struct {
struct wl_buffer *wl_buf;
int32_t stride;
int32_t size;
void *data;
} PoolBuf;
static void
poolbuf_destroy(PoolBuf *buf)
{
wl_buffer_destroy(buf->wl_buf);
munmap(buf->data, buf->size);
free(buf);
}
static void
poolbuf_buffer_release(void *data, struct wl_buffer *wl_buffer)
{
PoolBuf *buf = data;
poolbuf_destroy(buf);
}
static struct wl_buffer_listener poolbuf_buffer_listener = {
.release = poolbuf_buffer_release,
};
static PoolBuf *
poolbuf_create(struct wl_shm *shm,
int32_t width, int32_t height, int32_t stride, int norelease)
{
int fd;
void *data;
struct wl_shm_pool *shm_pool;
struct wl_buffer *wl_buf;
int32_t size = stride * height;
PoolBuf *buf;
#if defined(__linux__) || \
((defined(__FreeBSD__) && (__FreeBSD_version >= 1300048)))
fd = memfd_create("poolbuf-shm-buffer-pool",
MFD_CLOEXEC | MFD_ALLOW_SEALING |
#if defined(MFD_NOEXEC_SEAL)
MFD_NOEXEC_SEAL
#else
0
#endif
);
#else
char template[] = "/tmp/poolbuf-XXXXXX";
#if defined(__OpenBSD__)
fd = shm_mkstemp(template);
#else
fd = mkostemp(template, O_CLOEXEC);
#endif
unlink(template);
#endif
if (fd < 0)
return NULL;
if ((ftruncate(fd, size)) < 0) {
close(fd);
return NULL;
}
data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (data == MAP_FAILED) {
close(fd);
return NULL;
}
shm_pool = wl_shm_create_pool(shm, fd, size);
wl_buf = wl_shm_pool_create_buffer(shm_pool, 0,
width, height, stride, WL_SHM_FORMAT_ARGB8888);
wl_shm_pool_destroy(shm_pool);
close(fd);
buf = calloc(1, sizeof(PoolBuf));
buf->wl_buf = wl_buf;
buf->stride = stride;
buf->size = size;
buf->data = data;
if (!norelease)
wl_buffer_add_listener(wl_buf, &poolbuf_buffer_listener, buf);
return buf;
}