aboutsummaryrefslogtreecommitdiffstats
path: root/src/vu-set-alpha.c
diff options
context:
space:
mode:
authorMattias Andrée <maandree@kth.se>2017-01-13 09:05:08 +0100
committerMattias Andrée <maandree@kth.se>2017-01-13 09:05:08 +0100
commit4674ec0e4b833ab0d0365225ba99228df14abe87 (patch)
tree1b89fe1559fc9a2422e20048700e694a72d17751 /src/vu-set-alpha.c
parentvu-from-video: fix Y'UV encoding + add vu-to-video (diff)
downloadblind-4674ec0e4b833ab0d0365225ba99228df14abe87.tar.gz
blind-4674ec0e4b833ab0d0365225ba99228df14abe87.tar.bz2
blind-4674ec0e4b833ab0d0365225ba99228df14abe87.tar.xz
Rename to blind
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'src/vu-set-alpha.c')
-rw-r--r--src/vu-set-alpha.c69
1 files changed, 0 insertions, 69 deletions
diff --git a/src/vu-set-alpha.c b/src/vu-set-alpha.c
deleted file mode 100644
index 2e80154..0000000
--- a/src/vu-set-alpha.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/* See LICENSE file for copyright and license details. */
-#include "stream.h"
-#include "util.h"
-
-#include <fcntl.h>
-#include <stdint.h>
-#include <string.h>
-#include <unistd.h>
-
-USAGE("[-i] alpha-stream")
-
-static void
-process_xyza(struct stream *colour, struct stream *alpha, size_t n)
-{
- size_t i;
- double a;
- for (i = 0; i < n; i += colour->pixel_size) {
- a = ((double *)(alpha->buf + i))[1];
- a *= ((double *)(alpha->buf + i))[3];
- ((double *)(colour->buf + i))[3] *= a;
- }
-}
-
-static void
-process_xyza_i(struct stream *colour, struct stream *alpha, size_t n)
-{
- size_t i;
- double a;
- for (i = 0; i < n; i += colour->pixel_size) {
- a = 1 - ((double *)(alpha->buf + i))[1];
- a *= ((double *)(alpha->buf + i))[3];
- ((double *)(colour->buf + i))[3] *= a;
- }
-}
-
-int
-main(int argc, char *argv[])
-{
- int invert = 0;
- struct stream colour, alpha;
- void (*process)(struct stream *colour, struct stream *alpha, size_t n) = NULL;
-
- ARGBEGIN {
- case 'i':
- invert = 1;
- break;
- default:
- usage();
- } ARGEND;
-
- if (argc != 1)
- usage();
-
- colour.file = "<stdin>";
- colour.fd = STDIN_FILENO;
- einit_stream(&colour);
-
- alpha.file = argv[0];
- alpha.fd = eopen(alpha.file, O_RDONLY);
- einit_stream(&alpha);
-
- if (!strcmp(colour.pixfmt, "xyza"))
- process = invert ? process_xyza_i : process_xyza;
- else
- eprintf("pixel format %s is not supported, try xyza\n", colour.pixfmt);
-
- process_two_streams(&colour, &alpha, STDOUT_FILENO, "<stdout>", process);
- return 0;
-}