mirror of
https://gitlab.freedesktop.org/wayland/weston
synced 2024-10-03 02:23:16 +00:00
color: add weston_compositor_load_icc_file()
This function will be useful for Weston to load output ICC profiles from weston.ini. Co-authored-by: Sebastian Wick <sebastian@sebastianwick.net> Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
This commit is contained in:
parent
aa6346f274
commit
f45d57623e
|
@ -2136,6 +2136,10 @@ weston_color_profile_unref(struct weston_color_profile *cprof);
|
|||
const char *
|
||||
weston_color_profile_get_description(struct weston_color_profile *cprof);
|
||||
|
||||
struct weston_color_profile *
|
||||
weston_compositor_load_icc_file(struct weston_compositor *compositor,
|
||||
const char *path);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
|
|
@ -1,4 +1,5 @@
|
|||
/*
|
||||
* Copyright 2019 Sebastian Wick
|
||||
* Copyright 2021 Collabora, Ltd.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
|
@ -27,6 +28,13 @@
|
|||
|
||||
#include <libweston/libweston.h>
|
||||
#include <assert.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <fcntl.h>
|
||||
#include <unistd.h>
|
||||
#include <sys/mman.h>
|
||||
#include <errno.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "color.h"
|
||||
#include "libweston-internal.h"
|
||||
|
@ -220,3 +228,70 @@ weston_paint_node_ensure_color_transform(struct weston_paint_node *pnode)
|
|||
weston_log("Failed to create color transformation for a surface.\n");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Load ICC profile file
|
||||
*
|
||||
* Loads an ICC profile file, ensures it is fit for use, and returns a
|
||||
* new reference to the weston_color_profile. Use weston_color_profile_unref()
|
||||
* to free it.
|
||||
*
|
||||
* \param compositor The compositor instance, identifies the color manager.
|
||||
* \param path Path to the ICC file to be open()'d.
|
||||
* \return A color profile reference, or NULL on failure.
|
||||
*
|
||||
* Error messages are printed to libweston log.
|
||||
*
|
||||
* This function is not meant for loading profiles on behalf of Wayland
|
||||
* clients.
|
||||
*/
|
||||
WL_EXPORT struct weston_color_profile *
|
||||
weston_compositor_load_icc_file(struct weston_compositor *compositor,
|
||||
const char *path)
|
||||
{
|
||||
struct weston_color_manager *cm = compositor->color_manager;
|
||||
struct weston_color_profile *cprof = NULL;
|
||||
int fd;
|
||||
struct stat icc_stat;
|
||||
void *icc_data;
|
||||
size_t len;
|
||||
char *errmsg = NULL;
|
||||
|
||||
fd = open(path, O_RDONLY);
|
||||
if (fd == -1) {
|
||||
weston_log("Error: Cannot open ICC profile \"%s\" for reading: %s\n",
|
||||
path, strerror(errno));
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (fstat(fd, &icc_stat) != 0) {
|
||||
weston_log("Error: Cannot fstat ICC profile \"%s\": %s\n",
|
||||
path, strerror(errno));
|
||||
goto out_close;
|
||||
}
|
||||
len = icc_stat.st_size;
|
||||
if (len < 1) {
|
||||
weston_log("Error: ICC profile \"%s\" has no size.\n", path);
|
||||
goto out_close;
|
||||
}
|
||||
|
||||
icc_data = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, 0);
|
||||
if (icc_data == MAP_FAILED) {
|
||||
weston_log("Error: Cannot mmap ICC profile \"%s\": %s\n",
|
||||
path, strerror(errno));
|
||||
goto out_close;
|
||||
}
|
||||
|
||||
if (!cm->get_color_profile_from_icc(cm, icc_data, len,
|
||||
path, &cprof, &errmsg)) {
|
||||
weston_log("Error: loading ICC profile \"%s\" failed: %s\n",
|
||||
path, errmsg);
|
||||
free(errmsg);
|
||||
}
|
||||
|
||||
munmap(icc_data, len);
|
||||
|
||||
out_close:
|
||||
close(fd);
|
||||
return cprof;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue