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ccc/patches/image-preview.patch

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From a50fcb841a399f45b6fae92aecec4bf1cb3f6e66 Mon Sep 17 00:00:00 2001
From: night0721 <night@night0721.xyz>
Date: Wed, 13 Nov 2024 09:44:54 +0000
Subject: [PATCH] Image support with libsixel
---
Makefile | 4 +-
ccc.c | 137 +++++++++++++++++++++++++++++++------------------------
2 files changed, 80 insertions(+), 61 deletions(-)
diff --git a/Makefile b/Makefile
index 2d4cde2..b7d9f80 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,9 @@ PREFIX ?= /usr/local
BINDIR = $(PREFIX)/bin
MANDIR = $(PREFIX)/share/man/man1
-CFLAGS = -Os -march=native -mtune=native -pipe -s -flto -std=c99 -pedantic -Wall -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=600
+LDFLAGS != pkg-config --libs libsixel
+INCFLAGS != pkg-config --cflags libsixel
+CFLAGS = -Os -march=native -mtune=native -pipe -s -flto -std=c99 -pedantic -Wall -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=600 $(INCFLAGS)
SRC = ccc.c util.c file.c icons.c
diff --git a/ccc.c b/ccc.c
index feb9791..225b120 100644
--- a/ccc.c
+++ b/ccc.c
@@ -13,6 +13,8 @@
#include <sys/stat.h>
#include <sys/ioctl.h>
+#include <sixel.h>
+
#include "config.h"
#include "file.h"
#include "icons.h"
@@ -870,12 +872,14 @@ void show_file_content(void)
return;
}
- int c;
- /* Check if its binary */
- while ((c = fgetc(file)) != EOF) {
- if (c == '\0') {
- bprintf("binary");
- return;
+ if (strstr(current_file.name, ".jpg") == NULL && strstr(current_file.name, ".png") == NULL) {
+ int c;
+ /* Check if its binary */
+ while ((c = fgetc(file)) != EOF) {
+ if (c == '\0') {
+ bprintf("binary");
+ return;
+ }
}
}
int pipe_fd[2];
@@ -887,70 +891,83 @@ void show_file_content(void)
if (pid == 0) {
/* Child */
move_cursor(1, half_width);
- close(pipe_fd[0]);
- dup2(pipe_fd[1], STDOUT_FILENO);
- dup2(pipe_fd[1], STDERR_FILENO);
- close(pipe_fd[1]);
- execlp("vip", "vip", "-c", current_file.name, NULL);
+ if (strstr(current_file.name, ".jpg") || strstr(current_file.name, ".png")) {
+ sixel_encoder_t *encoder = NULL;
+ sixel_encoder_new(&encoder, NULL);
+ /* Should be enough for most terminal */
+ char width[5];
+ snprintf(width, 5, "%d", (cols - half_width) * 6);
+ sixel_encoder_setopt(encoder, 'w', width);
+ sixel_encoder_encode(encoder, current_file.name);
+ sixel_encoder_unref(encoder);
+ } else {
+ close(pipe_fd[0]);
+ dup2(pipe_fd[1], STDOUT_FILENO);
+ dup2(pipe_fd[1], STDERR_FILENO);
+ close(pipe_fd[1]);
+ execlp("vip", "vip", "-c", current_file.name, NULL);
+ }
_exit(1);
} else if (pid > 0) {
/* Parent */
- close(pipe_fd[1]);
- char buffer[4096];
- int row = 1;
- FILE *stream = fdopen(pipe_fd[0], "r");
- while (fgets(buffer, sizeof(buffer), stream) != NULL && row <= rows - 1) {
- buffer[strcspn(buffer, "\n")] = 0;
+ if (!strstr(current_file.name, ".jpg") && !strstr(current_file.name, ".png")) {
+ close(pipe_fd[1]);
+ char buffer[4096];
+ int row = 1;
+ FILE *stream = fdopen(pipe_fd[0], "r");
+ while (fgets(buffer, sizeof(buffer), stream) != NULL && row <= rows - 1) {
+ buffer[strcspn(buffer, "\n")] = 0;
- if (buffer[0] == '\0' || strspn(buffer, " \t") == strlen(buffer)) {
- move_cursor(row++, half_width);
- putchar('\n');
- continue;
- }
- /* Length without ANSI codes */
- size_t effective_len = get_effective_length(buffer);
- size_t offset = 0;
- while (effective_len > 0 && row <= rows - 1) {
- move_cursor(row++, half_width);
-
- /* Calculate the chunk size based on effective length */
- size_t chunk_size = (effective_len > (cols - half_width)) ? (cols - half_width) : effective_len;
-
- /* Find the actual end position in the string to avoid cutting ANSI sequences */
- size_t actual_end = offset;
- size_t visible_count = 0;
- bool in_ansi_sequence = false;
-
- while (visible_count < chunk_size && buffer[actual_end] != '\0') {
- if (buffer[actual_end] == '\033') {
- in_ansi_sequence = true;
- }
- if (!in_ansi_sequence) {
- visible_count++;
- }
- if (in_ansi_sequence && buffer[actual_end] == 'm') {
- in_ansi_sequence = false;
- }
- actual_end++;
+ if (buffer[0] == '\0' || strspn(buffer, " \t") == strlen(buffer)) {
+ move_cursor(row++, half_width);
+ putchar('\n');
+ continue;
}
+ /* Length without ANSI codes */
+ size_t effective_len = get_effective_length(buffer);
+ size_t offset = 0;
+ while (effective_len > 0 && row <= rows - 1) {
+ move_cursor(row++, half_width);
- /* Print the chunk from `offset` to `actual_end` */
- print_chunk(buffer, offset, actual_end);
+ /* Calculate the chunk size based on effective length */
+ size_t chunk_size = (effective_len > (cols - half_width)) ? (cols - half_width) : effective_len;
- /* Update offsets based on the effective length and ANSI-aware chunk */
- offset = actual_end;
- effective_len -= chunk_size;
+ /* Find the actual end position in the string to avoid cutting ANSI sequences */
+ size_t actual_end = offset;
+ size_t visible_count = 0;
+ bool in_ansi_sequence = false;
- putchar('\n');
- }
- /* Check if the line ends with the ANSI reset sequence `\033[0m` */
- size_t len = strlen(buffer);
- if (len >= 4 && strcmp(&buffer[len - 4], "\033[0m") == 0) {
- /* Line ends with ANSI reset, print it */
- printf("\033[0m");
+ while (visible_count < chunk_size && buffer[actual_end] != '\0') {
+ if (buffer[actual_end] == '\033') {
+ in_ansi_sequence = true;
+ }
+ if (!in_ansi_sequence) {
+ visible_count++;
+ }
+ if (in_ansi_sequence && buffer[actual_end] == 'm') {
+ in_ansi_sequence = false;
+ }
+ actual_end++;
+ }
+
+ /* Print the chunk from `offset` to `actual_end` */
+ print_chunk(buffer, offset, actual_end);
+
+ /* Update offsets based on the effective length and ANSI-aware chunk */
+ offset = actual_end;
+ effective_len -= chunk_size;
+
+ putchar('\n');
+ }
+ /* Check if the line ends with the ANSI reset sequence `\033[0m` */
+ size_t len = strlen(buffer);
+ if (len >= 4 && strcmp(&buffer[len - 4], "\033[0m") == 0) {
+ /* Line ends with ANSI reset, print it */
+ printf("\033[0m");
+ }
}
+ fclose(stream);
}
- fclose(stream);
waitpid(pid, NULL, 0);
} else {
wpprintw("fork failed: %s", strerror(errno));
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