aclindsa/st
1
0
Fork 0
Code Releases Activity

Add sixel support

Browse Source 
Originated from https://gist.github.com/CommandMaker/27ba97427424c06aff54d0a2a91a4ef1
This commit is contained in:
Aaron Lindsay
2025-07-29 10:17:35 -04:00
parent f114bcedd1
commit 8430e5c5ec
10 changed files with 1835 additions and 399 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
Makefile
View File

@@ -4,7 +4,7 @@
include config.mk
SRC = st.c x.c
SRC = st.c x.c $(SIXEL_C)
OBJ = $(SRC:.c=.o)
all: st

5
config.def.h
View File

@@ -23,7 +23,10 @@ char *scroll = NULL;
char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
/* identification sequence returned in DA and DECID */
char *vtiden = "\033[?6c";
char *vtiden = "\033[?62;4c"; /* VT200 family (62) with sixel (4) */
/* sixel rgb byte order: LSBFirst or MSBFirst */
int const sixelbyteorder = LSBFirst;
/* Kerning / character bounding-box multipliers */
static float cwscale = 1.0;

9
config.mk
View File

@@ -12,11 +12,14 @@ X11LIB = /usr/X11R6/lib
PKG_CONFIG = pkg-config
SIXEL_C = sixel.c sixel_hls.c
SIXEL_LIBS = `$(PKG_CONFIG) --libs imlib2`
# includes and libs
INCS = -I$(X11INC) \
`$(PKG_CONFIG) --cflags fontconfig` \
`$(PKG_CONFIG) --cflags freetype2`
LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \
LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft ${SIXEL_LIBS}\
`$(PKG_CONFIG) --libs fontconfig` \
`$(PKG_CONFIG) --libs freetype2`
@@ -28,8 +31,8 @@ STLDFLAGS = $(LIBS) $(LDFLAGS)
# OpenBSD:
#CPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
#LIBS = -L$(X11LIB) -lm -lX11 -lutil -lXft \
# `$(PKG_CONFIG) --libs fontconfig` \
# `$(PKG_CONFIG) --libs freetype2`
# `pkg-config --libs fontconfig` \
# `pkg-config --libs freetype2`
#MANPREFIX = ${PREFIX}/man
# compiler and linker

690
sixel.c Normal file
View File

@@ -0,0 +1,690 @@
// sixel.c (part of mintty)
// originally written by kmiya@cluti (https://github.com/saitoha/sixel/blob/master/fromsixel.c)
// Licensed under the terms of the GNU General Public License v3 or later.
#include <stdlib.h>
#include <string.h> /* memcpy */
#include "st.h"
#include "win.h"
#include "sixel.h"
#include "sixel_hls.h"
#define SIXEL_RGB(r, g, b) ((255 << 24) + ((r) << 16) + ((g) << 8) + (b))
#define SIXEL_PALVAL(n,a,m) (((n) * (a) + ((m) / 2)) / (m))
#define SIXEL_XRGB(r,g,b) SIXEL_RGB(SIXEL_PALVAL(r, 255, 100), SIXEL_PALVAL(g, 255, 100), SIXEL_PALVAL(b, 255, 100))
static sixel_color_t const sixel_default_color_table[] = {
SIXEL_XRGB( 0, 0, 0), /* 0 Black */
SIXEL_XRGB(20, 20, 80), /* 1 Blue */
SIXEL_XRGB(80, 13, 13), /* 2 Red */
SIXEL_XRGB(20, 80, 20), /* 3 Green */
SIXEL_XRGB(80, 20, 80), /* 4 Magenta */
SIXEL_XRGB(20, 80, 80), /* 5 Cyan */
SIXEL_XRGB(80, 80, 20), /* 6 Yellow */
SIXEL_XRGB(53, 53, 53), /* 7 Gray 50% */
SIXEL_XRGB(26, 26, 26), /* 8 Gray 25% */
SIXEL_XRGB(33, 33, 60), /* 9 Blue* */
SIXEL_XRGB(60, 26, 26), /* 10 Red* */
SIXEL_XRGB(33, 60, 33), /* 11 Green* */
SIXEL_XRGB(60, 33, 60), /* 12 Magenta* */
SIXEL_XRGB(33, 60, 60), /* 13 Cyan* */
SIXEL_XRGB(60, 60, 33), /* 14 Yellow* */
SIXEL_XRGB(80, 80, 80), /* 15 Gray 75% */
};
void
scroll_images(int n) {
ImageList *im, *next;
int top = 0;
for (im = term.images; im; im = next) {
next = im->next;
im->y += n;
/* check if the current sixel has exceeded the maximum
* draw distance, and should therefore be deleted */
if (im->y < top) {
//fprintf(stderr, "im@0x%08x exceeded maximum distance\n");
delete_image(im);
}
}
}
void
delete_image(ImageList *im)
{
if (im->prev)
im->prev->next = im->next;
else
term.images = im->next;
if (im->next)
im->next->prev = im->prev;
if (im->pixmap)
XFreePixmap(xw.dpy, (Drawable)im->pixmap);
if (im->clipmask)
XFreePixmap(xw.dpy, (Drawable)im->clipmask);
free(im->pixels);
free(im);
}
static int
set_default_color(sixel_image_t *image)
{
int i;
int n;
int r;
int g;
int b;
/* palette initialization */
for (n = 1; n < 17; n++) {
image->palette[n] = sixel_default_color_table[n - 1];
}
/* colors 17-232 are a 6x6x6 color cube */
for (r = 0; r < 6; r++) {
for (g = 0; g < 6; g++) {
for (b = 0; b < 6; b++) {
image->palette[n++] = SIXEL_RGB(r * 51, g * 51, b * 51);
}
}
}
/* colors 233-256 are a grayscale ramp, intentionally leaving out */
for (i = 0; i < 24; i++) {
image->palette[n++] = SIXEL_RGB(i * 11, i * 11, i * 11);
}
for (; n < DECSIXEL_PALETTE_MAX; n++) {
image->palette[n] = SIXEL_RGB(255, 255, 255);
}
return (0);
}
static int
sixel_image_init(
sixel_image_t *image,
int width,
int height,
int fgcolor,
int bgcolor,
int use_private_register)
{
int status = (-1);
size_t size;
size = (size_t)(width * height) * sizeof(sixel_color_no_t);
image->width = width;
image->height = height;
image->data = (sixel_color_no_t *)malloc(size);
image->ncolors = 2;
image->use_private_register = use_private_register;
if (image->data == NULL) {
status = (-1);
goto end;
}
memset(image->data, 0, size);
image->palette[0] = bgcolor;
if (image->use_private_register)
image->palette[1] = fgcolor;
image->palette_modified = 0;
status = (0);
end:
return status;
}
static int
image_buffer_resize(
sixel_image_t *image,
int width,
int height)
{
int status = (-1);
size_t size;
sixel_color_no_t *alt_buffer;
int n;
int min_height;
size = (size_t)(width * height) * sizeof(sixel_color_no_t);
alt_buffer = (sixel_color_no_t *)malloc(size);
if (alt_buffer == NULL) {
/* free source image */
free(image->data);
image->data = NULL;
status = (-1);
goto end;
}
min_height = height > image->height ? image->height: height;
if (width > image->width) { /* if width is extended */
for (n = 0; n < min_height; ++n) {
/* copy from source image */
memcpy(alt_buffer + width * n,
image->data + image->width * n,
(size_t)image->width * sizeof(sixel_color_no_t));
/* fill extended area with background color */
memset(alt_buffer + width * n + image->width,
0,
(size_t)(width - image->width) * sizeof(sixel_color_no_t));
}
} else {
for (n = 0; n < min_height; ++n) {
/* copy from source image */
memcpy(alt_buffer + width * n,
image->data + image->width * n,
(size_t)width * sizeof(sixel_color_no_t));
}
}
if (height > image->height) { /* if height is extended */
/* fill extended area with background color */
memset(alt_buffer + width * image->height,
0,
(size_t)(width * (height - image->height)) * sizeof(sixel_color_no_t));
}
/* free source image */
free(image->data);
image->data = alt_buffer;
image->width = width;
image->height = height;
status = (0);
end:
return status;
}
static void
sixel_image_deinit(sixel_image_t *image)
{
if (image->data)
free(image->data);
image->data = NULL;
}
int
sixel_parser_init(sixel_state_t *st,
int transparent,
sixel_color_t fgcolor, sixel_color_t bgcolor,
unsigned char use_private_register,
int cell_width, int cell_height)
{
int status = (-1);
st->state = PS_DECSIXEL;
st->pos_x = 0;
st->pos_y = 0;
st->max_x = 0;
st->max_y = 0;
st->attributed_pan = 2;
st->attributed_pad = 1;
st->attributed_ph = 0;
st->attributed_pv = 0;
st->transparent = transparent;
st->repeat_count = 1;
st->color_index = 16;
st->grid_width = cell_width;
st->grid_height = cell_height;
st->nparams = 0;
st->param = 0;
/* buffer initialization */
status = sixel_image_init(&st->image, 1, 1, fgcolor, transparent ? 0 : bgcolor, use_private_register);
return status;
}
int
sixel_parser_set_default_color(sixel_state_t *st)
{
return set_default_color(&st->image);
}
int
sixel_parser_finalize(sixel_state_t *st, ImageList **newimages, int cx, int cy, int cw, int ch)
{
sixel_image_t *image = &st->image;
int x, y;
sixel_color_no_t *src;
sixel_color_t *dst, color;
int w, h;
int i, j, cols, numimages;
char trans;
ImageList *im, *next, *tail;
if (!image->data)
return -1;
if (++st->max_x < st->attributed_ph)
st->max_x = st->attributed_ph;
if (++st->max_y < st->attributed_pv)
st->max_y = st->attributed_pv;
if (image->use_private_register && image->ncolors > 2 && !image->palette_modified) {
if (set_default_color(image) < 0)
return -1;
}
w = MIN(st->max_x, image->width);
h = MIN(st->max_y, image->height);
if ((numimages = (h + ch-1) / ch) <= 0)
return -1;
cols = (w + cw-1) / cw;
*newimages = NULL, tail = NULL;
for (y = 0, i = 0; i < numimages; i++) {
if ((im = malloc(sizeof(ImageList)))) {
if (!tail) {
*newimages = tail = im;
im->prev = im->next = NULL;
} else {
tail->next = im;
im->prev = tail;
im->next = NULL;
tail = im;
}
im->x = cx;
im->y = cy + i;
im->cols = cols;
im->width = w;
im->height = MIN(h - ch * i, ch);
im->pixels = malloc(im->width * im->height * 4);
im->pixmap = NULL;
im->clipmask = NULL;
im->cw = cw;
im->ch = ch;
}
if (!im || !im->pixels) {
for (im = *newimages; im; im = next) {
next = im->next;
if (im->pixels)
free(im->pixels);
free(im);
}
*newimages = NULL;
return -1;
}
dst = (sixel_color_t *)im->pixels;
for (trans = 0, j = 0; j < im->height && y < h; j++, y++) {
src = st->image.data + image->width * y;
for (x = 0; x < w; x++) {
color = st->image.palette[*src++];
trans |= (color == 0);
*dst++ = color;
}
}
im->transparent = (st->transparent && trans);
}
return numimages;
}
/* convert sixel data into indexed pixel bytes and palette data */
int
sixel_parser_parse(sixel_state_t *st, const unsigned char *p, size_t len)
{
int n = 0;
int i;
int x;
int y;
int bits;
int sx;
int sy;
int c;
int pos;
int width;
const unsigned char *p0 = p, *p2 = p + len;
sixel_image_t *image = &st->image;
sixel_color_no_t *data, color_index;
if (!image->data)
st->state = PS_ERROR;
while (p < p2) {
switch (st->state) {
case PS_ESC:
goto end;
case PS_DECSIXEL:
switch (*p) {
case '\x1b':
st->state = PS_ESC;
break;
case '"':
st->param = 0;
st->nparams = 0;
st->state = PS_DECGRA;
p++;
break;
case '!':
st->param = 0;
st->nparams = 0;
st->state = PS_DECGRI;
p++;
break;
case '#':
st->param = 0;
st->nparams = 0;
st->state = PS_DECGCI;
p++;
break;
case '$':
/* DECGCR Graphics Carriage Return */
st->pos_x = 0;
p++;
break;
case '-':
/* DECGNL Graphics Next Line */
st->pos_x = 0;
if (st->pos_y < DECSIXEL_HEIGHT_MAX - 5 - 6)
st->pos_y += 6;
else
st->pos_y = DECSIXEL_HEIGHT_MAX + 1;
p++;
break;
default:
if (*p >= '?' && *p <= '~') { /* sixel characters */
if ((image->width < (st->pos_x + st->repeat_count) || image->height < (st->pos_y + 6))
&& image->width < DECSIXEL_WIDTH_MAX && image->height < DECSIXEL_HEIGHT_MAX) {
sx = image->width * 2;
sy = image->height * 2;
while (sx < (st->pos_x + st->repeat_count) || sy < (st->pos_y + 6)) {
sx *= 2;
sy *= 2;
}
sx = MIN(sx, DECSIXEL_WIDTH_MAX);
sy = MIN(sy, DECSIXEL_HEIGHT_MAX);
if (image_buffer_resize(image, sx, sy) < 0) {
perror("sixel_parser_parse() failed");
st->state = PS_ERROR;
p++;
break;
}
}
if (st->color_index > image->ncolors)
image->ncolors = st->color_index;
if (st->pos_x + st->repeat_count > image->width)
st->repeat_count = image->width - st->pos_x;
if (st->repeat_count > 0 && st->pos_y + 5 < image->height) {
bits = *p - '?';
if (bits != 0) {
data = image->data + image->width * st->pos_y + st->pos_x;
width = image->width;
color_index = st->color_index;
if (st->repeat_count <= 1) {
if (bits & 0x01)
*data = color_index, n = 0;
data += width;
if (bits & 0x02)
*data = color_index, n = 1;
data += width;
if (bits & 0x04)
*data = color_index, n = 2;
data += width;
if (bits & 0x08)
*data = color_index, n = 3;
data += width;
if (bits & 0x10)
*data = color_index, n = 4;
if (bits & 0x20)
data[width] = color_index, n = 5;
if (st->max_x < st->pos_x)
st->max_x = st->pos_x;
} else {
/* st->repeat_count > 1 */
for (i = 0; bits; bits >>= 1, i++, data += width) {
if (bits & 1) {
data[0] = color_index;
data[1] = color_index;
for (x = 2; x < st->repeat_count; x++)
data[x] = color_index;
n = i;
}
}
if (st->max_x < (st->pos_x + st->repeat_count - 1))
st->max_x = st->pos_x + st->repeat_count - 1;
}
if (st->max_y < (st->pos_y + n))
st->max_y = st->pos_y + n;
}
}
if (st->repeat_count > 0)
st->pos_x += st->repeat_count;
st->repeat_count = 1;
}
p++;
break;
}
break;
case PS_DECGRA:
/* DECGRA Set Raster Attributes " Pan; Pad; Ph; Pv */
switch (*p) {
case '\x1b':
st->state = PS_ESC;
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
st->param = st->param * 10 + *p - '0';
st->param = MIN(st->param, DECSIXEL_PARAMVALUE_MAX);
p++;
break;
case ';':
if (st->nparams < DECSIXEL_PARAMS_MAX)
st->params[st->nparams++] = st->param;
st->param = 0;
p++;
break;
default:
if (st->nparams < DECSIXEL_PARAMS_MAX)
st->params[st->nparams++] = st->param;
if (st->nparams > 0)
st->attributed_pad = st->params[0];
if (st->nparams > 1)
st->attributed_pan = st->params[1];
if (st->nparams > 2 && st->params[2] > 0)
st->attributed_ph = st->params[2];
if (st->nparams > 3 && st->params[3] > 0)
st->attributed_pv = st->params[3];
if (st->attributed_pan <= 0)
st->attributed_pan = 1;
if (st->attributed_pad <= 0)
st->attributed_pad = 1;
if (image->width < st->attributed_ph ||
image->height < st->attributed_pv) {
sx = MAX(image->width, st->attributed_ph);
sy = MAX(image->height, st->attributed_pv);
/* the height of the image buffer must be divisible by 6
* to avoid unnecessary resizing of the image buffer when
* parsing the last sixel line */
sy = (sy + 5) / 6 * 6;
sx = MIN(sx, DECSIXEL_WIDTH_MAX);
sy = MIN(sy, DECSIXEL_HEIGHT_MAX);
if (image_buffer_resize(image, sx, sy) < 0) {
perror("sixel_parser_parse() failed");
st->state = PS_ERROR;
break;
}
}
st->state = PS_DECSIXEL;
st->param = 0;
st->nparams = 0;
}
break;
case PS_DECGRI:
/* DECGRI Graphics Repeat Introducer ! Pn Ch */
switch (*p) {
case '\x1b':
st->state = PS_ESC;
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
st->param = st->param * 10 + *p - '0';
st->param = MIN(st->param, DECSIXEL_PARAMVALUE_MAX);
p++;
break;
default:
st->repeat_count = MAX(st->param, 1);
st->state = PS_DECSIXEL;
st->param = 0;
st->nparams = 0;
break;
}
break;
case PS_DECGCI:
/* DECGCI Graphics Color Introducer # Pc; Pu; Px; Py; Pz */
switch (*p) {
case '\x1b':
st->state = PS_ESC;
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
st->param = st->param * 10 + *p - '0';
st->param = MIN(st->param, DECSIXEL_PARAMVALUE_MAX);
p++;
break;
case ';':
if (st->nparams < DECSIXEL_PARAMS_MAX)
st->params[st->nparams++] = st->param;
st->param = 0;
p++;
break;
default:
st->state = PS_DECSIXEL;
if (st->nparams < DECSIXEL_PARAMS_MAX)
st->params[st->nparams++] = st->param;
st->param = 0;
if (st->nparams > 0) {
st->color_index = 1 + st->params[0]; /* offset 1(background color) added */
if (st->color_index < 0)
st->color_index = 0;
else if (st->color_index >= DECSIXEL_PALETTE_MAX)
st->color_index = DECSIXEL_PALETTE_MAX - 1;
}
if (st->nparams > 4) {
st->image.palette_modified = 1;
if (st->params[1] == 1) {
/* HLS */
st->params[2] = MIN(st->params[2], 360);
st->params[3] = MIN(st->params[3], 100);
st->params[4] = MIN(st->params[4], 100);
image->palette[st->color_index]
= hls_to_rgb(st->params[2], st->params[3], st->params[4]);
} else if (st->params[1] == 2) {
/* RGB */
st->params[2] = MIN(st->params[2], 100);
st->params[3] = MIN(st->params[3], 100);
st->params[4] = MIN(st->params[4], 100);
image->palette[st->color_index]
= SIXEL_XRGB(st->params[2], st->params[3], st->params[4]);
}
}
break;
}
break;
case PS_ERROR:
if (*p == '\x1b') {
st->state = PS_ESC;
goto end;
}
p++;
break;
default:
break;
}
}
end:
return p - p0;
}
void
sixel_parser_deinit(sixel_state_t *st)
{
if (st)
sixel_image_deinit(&st->image);
}
Pixmap
sixel_create_clipmask(char *pixels, int width, int height)
{
char c, *clipdata, *dst;
int b, i, n, y, w;
int msb = (XBitmapBitOrder(xw.dpy) == MSBFirst);
sixel_color_t *src = (sixel_color_t *)pixels;
Pixmap clipmask;
clipdata = dst = malloc((width+7)/8 * height);
if (!clipdata)
return (Pixmap)None;
for (y = 0; y < height; y++) {
for (w = width; w > 0; w -= n) {
n = MIN(w, 8);
if (msb) {
for (b = 0x80, c = 0, i = 0; i < n; i++, b >>= 1)
c |= (*src++) ? b : 0;
} else {
for (b = 0x01, c = 0, i = 0; i < n; i++, b <<= 1)
c |= (*src++) ? b : 0;
}
*dst++ = c;
}
}
clipmask = XCreateBitmapFromData(xw.dpy, xw.win, clipdata, width, height);
free(clipdata);
return clipmask;
}

63
sixel.h Normal file
View File

@@ -0,0 +1,63 @@
#ifndef SIXEL_H
#define SIXEL_H
#define DECSIXEL_PARAMS_MAX 16
#define DECSIXEL_PALETTE_MAX 1024
#define DECSIXEL_PARAMVALUE_MAX 65535
#define DECSIXEL_WIDTH_MAX 4096
#define DECSIXEL_HEIGHT_MAX 4096
typedef unsigned short sixel_color_no_t;
typedef unsigned int sixel_color_t;
typedef struct sixel_image_buffer {
sixel_color_no_t *data;
int width;
int height;
sixel_color_t palette[DECSIXEL_PALETTE_MAX];
sixel_color_no_t ncolors;
int palette_modified;
int use_private_register;
} sixel_image_t;
typedef enum parse_state {
PS_ESC = 1, /* ESC */
PS_DECSIXEL = 2, /* DECSIXEL body part ", $, -, ? ... ~ */
PS_DECGRA = 3, /* DECGRA Set Raster Attributes " Pan; Pad; Ph; Pv */
PS_DECGRI = 4, /* DECGRI Graphics Repeat Introducer ! Pn Ch */
PS_DECGCI = 5, /* DECGCI Graphics Color Introducer # Pc; Pu; Px; Py; Pz */
PS_ERROR = 6,
} parse_state_t;
typedef struct parser_context {
parse_state_t state;
int pos_x;
int pos_y;
int max_x;
int max_y;
int attributed_pan;
int attributed_pad;
int attributed_ph;
int attributed_pv;
int transparent;
int repeat_count;
int color_index;
int bgindex;
int grid_width;
int grid_height;
int param;
int nparams;
int params[DECSIXEL_PARAMS_MAX];
sixel_image_t image;
} sixel_state_t;
void scroll_images(int n);
void delete_image(ImageList *im);
int sixel_parser_init(sixel_state_t *st, int transparent, sixel_color_t fgcolor, sixel_color_t bgcolor, unsigned char use_private_register, int cell_width, int cell_height);
int sixel_parser_parse(sixel_state_t *st, const unsigned char *p, size_t len);
int sixel_parser_set_default_color(sixel_state_t *st);
int sixel_parser_finalize(sixel_state_t *st, ImageList **newimages, int cx, int cy, int cw, int ch);
void sixel_parser_deinit(sixel_state_t *st);
Pixmap sixel_create_clipmask(char *pixels, int width, int height);
#endif

115
sixel_hls.c Normal file
View File

@@ -0,0 +1,115 @@
// sixel.c (part of mintty)
// this function is derived from a part of graphics.c
// in Xterm pl#310 originally written by Ross Combs.
//
// Copyright 2013,2014 by Ross Combs
//
// All Rights Reserved
//
// 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 ABOVE LISTED COPYRIGHT HOLDER(S) 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.
//
// Except as contained in this notice, the name(s) of the above copyright
// holders shall not be used in advertising or otherwise to promote the
// sale, use or other dealings in this Software without prior written
// authorization.
#define SIXEL_RGB(r, g, b) ((r) + ((g) << 8) + ((b) << 16) + (255 << 24))
int
hls_to_rgb(int hue, int lum, int sat)
{
double hs = (hue + 240) % 360;
double hv = hs / 360.0;
double lv = lum / 100.0;
double sv = sat / 100.0;
double c, x, m, c2;
double r1, g1, b1;
int r, g, b;
int hpi;
if (sat == 0) {
r = g = b = lum * 255 / 100;
return SIXEL_RGB(r, g, b);
}
if ((c2 = ((2.0 * lv) - 1.0)) < 0.0) {
c2 = -c2;
}
c = (1.0 - c2) * sv;
hpi = (int) (hv * 6.0);
x = (hpi & 1) ? c : 0.0;
m = lv - 0.5 * c;
switch (hpi) {
case 0:
r1 = c;
g1 = x;
b1 = 0.0;
break;
case 1:
r1 = x;
g1 = c;
b1 = 0.0;
break;
case 2:
r1 = 0.0;
g1 = c;
b1 = x;
break;
case 3:
r1 = 0.0;
g1 = x;
b1 = c;
break;
case 4:
r1 = x;
g1 = 0.0;
b1 = c;
break;
case 5:
r1 = c;
g1 = 0.0;
b1 = x;
break;
default:
return SIXEL_RGB(255, 255, 255);
}
r = (int) ((r1 + m) * 100.0 + 0.5);
g = (int) ((g1 + m) * 100.0 + 0.5);
b = (int) ((b1 + m) * 100.0 + 0.5);
if (r < 0) {
r = 0;
} else if (r > 100) {
r = 100;
}
if (g < 0) {
g = 0;
} else if (g > 100) {
g = 100;
}
if (b < 0) {
b = 0;
} else if (b > 100) {
b = 100;
}
return SIXEL_RGB(r * 255 / 100, g * 255 / 100, b * 255 / 100);
}

7
sixel_hls.h Normal file
View File

@@ -0,0 +1,7 @@
/*
* Primary color hues:
* blue: 0 degrees
* red: 120 degrees
* green: 240 degrees
*/
int hls_to_rgb(int hue, int lum, int sat);

541
st.c
View File

File diff suppressed because it is too large Load Diff

191
st.h
View File

@@ -1,7 +1,14 @@
/* See LICENSE for license details. */
#include <stdint.h>
#include <time.h>
#include <sys/types.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <X11/Xft/Xft.h>
#include <X11/XKBlib.h>
/* macros */
#define MIN(a, b) ((a) < (b) ? (a) : (b))
@@ -22,20 +29,44 @@
enum glyph_attribute {
ATTR_NULL = 0,
ATTR_BOLD = 1 << 0,
ATTR_FAINT = 1 << 1,
ATTR_ITALIC = 1 << 2,
ATTR_UNDERLINE = 1 << 3,
ATTR_BLINK = 1 << 4,
ATTR_REVERSE = 1 << 5,
ATTR_INVISIBLE = 1 << 6,
ATTR_STRUCK = 1 << 7,
ATTR_WRAP = 1 << 8,
ATTR_WIDE = 1 << 9,
ATTR_WDUMMY = 1 << 10,
ATTR_SET = 1 << 0,
ATTR_BOLD = 1 << 1,
ATTR_FAINT = 1 << 2,
ATTR_ITALIC = 1 << 3,
ATTR_UNDERLINE = 1 << 4,
ATTR_BLINK = 1 << 5,
ATTR_REVERSE = 1 << 6,
ATTR_INVISIBLE = 1 << 7,
ATTR_STRUCK = 1 << 8,
ATTR_WRAP = 1 << 9,
ATTR_WIDE = 1 << 10,
ATTR_WDUMMY = 1 << 11,
ATTR_SIXEL = 1 << 16,
ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
};
typedef struct _ImageList {
struct _ImageList *next, *prev;
unsigned char *pixels;
void *pixmap;
void *clipmask;
int width;
int height;
int x;
int y;
int cols;
int cw;
int ch;
int transparent;
} ImageList;
/* Used to control which screen(s) keybindings and mouse shortcuts apply to. */
enum screen {
S_PRI = -1, /* primary screen */
S_ALL = 0, /* both primary and alt screen */
S_ALT = 1 /* alternate screen */
};
enum selection_mode {
SEL_IDLE = 0,
SEL_EMPTY = 1,
@@ -59,16 +90,50 @@ typedef unsigned short ushort;
typedef uint_least32_t Rune;
typedef XftDraw *Draw;
typedef XftColor Color;
typedef XftGlyphFontSpec GlyphFontSpec;
#define Glyph Glyph_
typedef struct {
Rune u; /* character code */
ushort mode; /* attribute flags */
uint32_t mode; /* attribute flags */
uint32_t fg; /* foreground */
uint32_t bg; /* background */
} Glyph;
typedef Glyph *Line;
typedef struct {
Glyph attr; /* current char attributes */
int x;
int y;
char state;
} TCursor;
/* Internal representation of the screen */
typedef struct {
int row; /* nb row */
int col; /* nb col */
Line *line; /* screen */
Line *alt; /* alternate screen */
int *dirty; /* dirtyness of lines */
TCursor c; /* cursor */
int ocx; /* old cursor col */
int ocy; /* old cursor row */
int top; /* top scroll limit */
int bot; /* bottom scroll limit */
int mode; /* terminal mode flags */
int esc; /* escape state flags */
char trantbl[4]; /* charset table translation */
int charset; /* current charset */
int icharset; /* selected charset for sequence */
int *tabs;
ImageList *images; /* sixel images */
ImageList *images_alt; /* sixel images for alternate screen */
Rune lastc; /* last printed char outside of sequence, 0 if control */
} Term;
typedef union {
int i;
uint ui;
@@ -77,9 +142,101 @@ typedef union {
const char *s;
} Arg;
/* Purely graphic info */
typedef struct {
int tw, th; /* tty width and height */
int w, h; /* window width and height */
int ch; /* char height */
int cw; /* char width */
int mode; /* window state/mode flags */
int cursor; /* cursor style */
} TermWindow;
typedef struct {
Display *dpy;
Colormap cmap;
Window win;
Drawable buf;
GlyphFontSpec *specbuf; /* font spec buffer used for rendering */
Atom xembed, wmdeletewin, netwmname, netwmiconname, netwmpid;
struct {
XIM xim;
XIC xic;
XPoint spot;
XVaNestedList spotlist;
} ime;
Draw draw;
Visual *vis;
XSetWindowAttributes attrs;
int scr;
int isfixed; /* is fixed geometry? */
int l, t; /* left and top offset */
int gm; /* geometry mask */
} XWindow;
typedef struct {
Atom xtarget;
char *primary, *clipboard;
struct timespec tclick1;
struct timespec tclick2;
} XSelection;
/* types used in config.h */
typedef struct {
uint mod;
KeySym keysym;
void (*func)(const Arg *);
const Arg arg;
int screen;
} Shortcut;
typedef struct {
uint mod;
uint button;
void (*func)(const Arg *);
const Arg arg;
uint release;
int screen;
} MouseShortcut;
typedef struct {
KeySym k;
uint mask;
char *s;
/* three-valued logic variables: 0 indifferent, 1 on, -1 off */
signed char appkey; /* application keypad */
signed char appcursor; /* application cursor */
} Key;
/* Font structure */
#define Font Font_
typedef struct {
int height;
int width;
int ascent;
int descent;
int badslant;
int badweight;
short lbearing;
short rbearing;
XftFont *match;
FcFontSet *set;
FcPattern *pattern;
} Font;
/* Drawing Context */
typedef struct {
Color *col;
size_t collen;
Font font, bfont, ifont, ibfont;
GC gc;
} DC;
void die(const char *, ...);
void redraw(void);
void draw(void);
void drawregion(int, int, int, int);
void tfulldirt(void);
void printscreen(const Arg *);
void printsel(const Arg *);
@@ -87,6 +244,7 @@ void sendbreak(const Arg *);
void toggleprinter(const Arg *);
int tattrset(int);
int tisaltscr(void);
void tnew(int, int);
void tresize(int, int);
void tsetdirtattr(int);
@@ -100,6 +258,7 @@ void resettitle(void);
void selclear(void);
void selinit(void);
void selremove(void);
void selstart(int, int, int);
void selextend(int, int, int, int);
int selected(int, int);
@@ -111,6 +270,8 @@ void *xmalloc(size_t);
void *xrealloc(void *, size_t);
char *xstrdup(const char *);
int xgetcolor(int x, unsigned char *r, unsigned char *g, unsigned char *b);
/* config.h globals */
extern char *utmp;
extern char *scroll;
@@ -124,3 +285,9 @@ extern unsigned int tabspaces;
extern unsigned int defaultfg;
extern unsigned int defaultbg;
extern unsigned int defaultcs;
extern DC dc;
extern XWindow xw;
extern XSelection xsel;
extern TermWindow win;
extern Term term;

549
x.c
View File

@@ -20,30 +20,8 @@ char *argv0;
#include "st.h"
#include "win.h"
/* types used in config.h */
typedef struct {
uint mod;
KeySym keysym;
void (*func)(const Arg *);
const Arg arg;
} Shortcut;
typedef struct {
uint mod;
uint button;
void (*func)(const Arg *);
const Arg arg;
uint release;
} MouseShortcut;
typedef struct {
KeySym k;
uint mask;
char *s;
/* three-valued logic variables: 0 indifferent, 1 on, -1 off */
signed char appkey; /* application keypad */
signed char appcursor; /* application cursor */
} Key;
#include <Imlib2.h>
#include "sixel.h"
/* X modifiers */
#define XK_ANY_MOD UINT_MAX
@@ -55,10 +33,11 @@ static void clipcopy(const Arg *);
static void clippaste(const Arg *);
static void numlock(const Arg *);
static void selpaste(const Arg *);
static void ttysend(const Arg *);
static void zoom(const Arg *);
static void zoomabs(const Arg *);
static void zoomreset(const Arg *);
static void ttysend(const Arg *);
/* config.h for applying patches and the configuration. */
#include "config.h"
@@ -73,77 +52,10 @@ static void ttysend(const Arg *);
#define TRUEGREEN(x) (((x) & 0xff00))
#define TRUEBLUE(x) (((x) & 0xff) << 8)
typedef XftDraw *Draw;
typedef XftColor Color;
typedef XftGlyphFontSpec GlyphFontSpec;
/* Purely graphic info */
typedef struct {
int tw, th; /* tty width and height */
int w, h; /* window width and height */
int ch; /* char height */
int cw; /* char width */
int mode; /* window state/mode flags */
int cursor; /* cursor style */
} TermWindow;
typedef struct {
Display *dpy;
Colormap cmap;
Window win;
Drawable buf;
GlyphFontSpec *specbuf; /* font spec buffer used for rendering */
Atom xembed, wmdeletewin, netwmname, netwmiconname, netwmpid;
struct {
XIM xim;
XIC xic;
XPoint spot;
XVaNestedList spotlist;
} ime;
Draw draw;
Visual *vis;
XSetWindowAttributes attrs;
int scr;
int isfixed; /* is fixed geometry? */
int l, t; /* left and top offset */
int gm; /* geometry mask */
} XWindow;
typedef struct {
Atom xtarget;
char *primary, *clipboard;
struct timespec tclick1;
struct timespec tclick2;
} XSelection;
/* Font structure */
#define Font Font_
typedef struct {
int height;
int width;
int ascent;
int descent;
int badslant;
int badweight;
short lbearing;
short rbearing;
XftFont *match;
FcFontSet *set;
FcPattern *pattern;
} Font;
/* Drawing Context */
typedef struct {
Color *col;
size_t collen;
Font font, bfont, ifont, ibfont;
GC gc;
} DC;
static inline ushort sixd_to_16bit(int);
static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
static void xdrawglyph(Glyph, int, int);
void xdrawglyph(Glyph, int, int);
static void xclear(int, int, int, int);
static int xgeommasktogravity(int);
static int ximopen(Display *);
@@ -172,7 +84,6 @@ static void cmessage(XEvent *);
static void resize(XEvent *);
static void focus(XEvent *);
static uint buttonmask(uint);
static int mouseaction(XEvent *, uint);
static void brelease(XEvent *);
static void bpress(XEvent *);
static void bmotion(XEvent *);
@@ -181,6 +92,7 @@ static void selnotify(XEvent *);
static void selclear_(XEvent *);
static void selrequest(XEvent *);
static void setsel(char *, Time);
static int mouseaction(XEvent *, uint);
static void mousesel(XEvent *, int);
static void mousereport(XEvent *);
static char *kmap(KeySym, uint);
@@ -216,10 +128,11 @@ static void (*handler[LASTEvent])(XEvent *) = {
};
/* Globals */
static DC dc;
static XWindow xw;
static XSelection xsel;
static TermWindow win;
Term term;
DC dc;
XWindow xw;
XSelection xsel;
TermWindow win;
/* Font Ring Cache */
enum {
@@ -254,6 +167,7 @@ static char *opt_title = NULL;
static uint buttons; /* bit field of pressed buttons */
void
clipcopy(const Arg *dummy)
{
@@ -279,17 +193,24 @@ clippaste(const Arg *dummy)
xw.win, CurrentTime);
}
void
numlock(const Arg *dummy)
{
win.mode ^= MODE_NUMLOCK;
}
void
selpaste(const Arg *dummy)
{
XConvertSelection(xw.dpy, XA_PRIMARY, xsel.xtarget, XA_PRIMARY,
xw.win, CurrentTime);
}
void
numlock(const Arg *dummy)
ttysend(const Arg *arg)
{
win.mode ^= MODE_NUMLOCK;
ttywrite(arg->s, strlen(arg->s), 1);
}
void
@@ -298,14 +219,31 @@ zoom(const Arg *arg)
Arg larg;
larg.f = usedfontsize + arg->f;
if (larg.f >= 1.0)
zoomabs(&larg);
}
void
zoomabs(const Arg *arg)
{
int i;
ImageList *im;
xunloadfonts();
xloadfonts(usedfont, arg->f);
/* delete old pixmaps so that xfinishdraw() can create new scaled ones */
for (im = term.images, i = 0; i < 2; i++, im = term.images_alt) {
for (; im; im = im->next) {
if (im->pixmap)
XFreePixmap(xw.dpy, (Drawable)im->pixmap);
if (im->clipmask)
XFreePixmap(xw.dpy, (Drawable)im->clipmask);
im->pixmap = NULL;
im->clipmask = NULL;
}
}
cresize(0, 0);
redraw();
xhints();
@@ -322,12 +260,6 @@ zoomreset(const Arg *arg)
}
}
void
ttysend(const Arg *arg)
{
ttywrite(arg->s, strlen(arg->s), 1);
}
int
evcol(XEvent *e)
{
@@ -344,6 +276,40 @@ evrow(XEvent *e)
return y / win.ch;
}
uint
buttonmask(uint button)
{
return button == Button1 ? Button1Mask
: button == Button2 ? Button2Mask
: button == Button3 ? Button3Mask
: button == Button4 ? Button4Mask
: button == Button5 ? Button5Mask
: 0;
}
int
mouseaction(XEvent *e, uint release)
{
MouseShortcut *ms;
int screen = tisaltscr() ? S_ALT : S_PRI;
/* ignore Button<N>mask for Button<N> - it's set on release */
uint state = e->xbutton.state & ~buttonmask(e->xbutton.button);
for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
if (ms->release == release &&
ms->button == e->xbutton.button &&
(!ms->screen || (ms->screen == screen)) &&
(match(ms->mod, state) || /* exact or forced */
match(ms->mod, state & ~forcemousemod))) {
ms->func(&(ms->arg));
return 1;
}
}
return 0;
}
void
mousesel(XEvent *e, int done)
{
@@ -378,6 +344,7 @@ mousereport(XEvent *e)
/* MODE_MOUSEMOTION: no reporting if no button is pressed */
if (IS_SET(MODE_MOUSEMOTION) && buttons == 0)
return;
/* Set btn to lowest-numbered pressed button, or 12 if no
* buttons are pressed. */
for (btn = 1; btn <= 11 && !(buttons & (1<<(btn-1))); btn++)
@@ -433,38 +400,6 @@ mousereport(XEvent *e)
ttywrite(buf, len, 0);
}
uint
buttonmask(uint button)
{
return button == Button1 ? Button1Mask
: button == Button2 ? Button2Mask
: button == Button3 ? Button3Mask
: button == Button4 ? Button4Mask
: button == Button5 ? Button5Mask
: 0;
}
int
mouseaction(XEvent *e, uint release)
{
MouseShortcut *ms;
/* ignore Button<N>mask for Button<N> - it's set on release */
uint state = e->xbutton.state & ~buttonmask(e->xbutton.button);
for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
if (ms->release == release &&
ms->button == e->xbutton.button &&
(match(ms->mod, state) || /* exact or forced */
match(ms->mod, state & ~forcemousemod))) {
ms->func(&(ms->arg));
return 1;
}
}
return 0;
}
void
bpress(XEvent *e)
{
@@ -500,6 +435,7 @@ bpress(XEvent *e)
xsel.tclick1 = now;
selstart(evcol(e), evrow(e), snap);
}
}
@@ -515,6 +451,7 @@ propnotify(XEvent *e)
xpev->atom == clipboard)) {
selnotify(e);
}
}
void
@@ -545,7 +482,8 @@ selnotify(XEvent *e)
return;
}
if (e->type == PropertyNotify && nitems == 0 && rem == 0) {
if (e->type == PropertyNotify && nitems == 0 && rem == 0)
{
/*
* If there is some PropertyNotify with no data, then
* this is the signal of the selection owner that all
@@ -686,6 +624,7 @@ setsel(char *str, Time t)
XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t);
if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win)
selclear();
}
void
@@ -709,13 +648,17 @@ brelease(XEvent *e)
if (mouseaction(e, 1))
return;
if (btn == Button1)
if (btn == Button1) {
mousesel(e, 1);
}
}
void
bmotion(XEvent *e)
{
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
mousereport(e);
return;
@@ -736,7 +679,7 @@ cresize(int width, int height)
col = (win.w - 2 * borderpx) / win.cw;
row = (win.h - 2 * borderpx) / win.ch;
col = MAX(1, col);
col = MAX(2, col);
row = MAX(1, row);
tresize(col, row);
@@ -752,7 +695,8 @@ xresize(int col, int row)
XFreePixmap(xw.dpy, xw.buf);
xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
DefaultDepth(xw.dpy, xw.scr));
DefaultDepth(xw.dpy, xw.scr)
);
XftDrawChange(xw.draw, xw.buf);
xclear(0, 0, win.w, win.h);
@@ -856,6 +800,12 @@ xclear(int x1, int y1, int x2, int y2)
x1, y1, x2-x1, y2-y1);
}
void
xclearwin(void)
{
xclear(0, 0, win.w, win.h);
}
void
xhints(void)
{
@@ -907,6 +857,60 @@ xgeommasktogravity(int mask)
return SouthEastGravity;
}
int
ximopen(Display *dpy)
{
XIMCallback imdestroy = { .client_data = NULL, .callback = ximdestroy };
XICCallback icdestroy = { .client_data = NULL, .callback = xicdestroy };
xw.ime.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
if (xw.ime.xim == NULL)
return 0;
if (XSetIMValues(xw.ime.xim, XNDestroyCallback, &imdestroy, NULL))
fprintf(stderr, "XSetIMValues: "
"Could not set XNDestroyCallback.\n");
xw.ime.spotlist = XVaCreateNestedList(0, XNSpotLocation, &xw.ime.spot,
NULL);
if (xw.ime.xic == NULL) {
xw.ime.xic = XCreateIC(xw.ime.xim, XNInputStyle,
XIMPreeditNothing | XIMStatusNothing,
XNClientWindow, xw.win,
XNDestroyCallback, &icdestroy,
NULL);
}
if (xw.ime.xic == NULL)
fprintf(stderr, "XCreateIC: Could not create input context.\n");
return 1;
}
void
ximinstantiate(Display *dpy, XPointer client, XPointer call)
{
if (ximopen(dpy))
XUnregisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
ximinstantiate, NULL);
}
void
ximdestroy(XIM xim, XPointer client, XPointer call)
{
xw.ime.xim = NULL;
XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
ximinstantiate, NULL);
XFree(xw.ime.spotlist);
}
int
xicdestroy(XIC xim, XPointer client, XPointer call)
{
xw.ime.xic = NULL;
return 1;
}
int
xloadfont(Font *f, FcPattern *pattern)
{
@@ -1062,6 +1066,7 @@ xunloadfont(Font *f)
void
xunloadfonts(void)
{
/* Free the loaded fonts in the font cache. */
while (frclen > 0)
XftFontClose(xw.dpy, frc[--frclen].font);
@@ -1072,60 +1077,6 @@ xunloadfonts(void)
xunloadfont(&dc.ibfont);
}
int
ximopen(Display *dpy)
{
XIMCallback imdestroy = { .client_data = NULL, .callback = ximdestroy };
XICCallback icdestroy = { .client_data = NULL, .callback = xicdestroy };
xw.ime.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
if (xw.ime.xim == NULL)
return 0;
if (XSetIMValues(xw.ime.xim, XNDestroyCallback, &imdestroy, NULL))
fprintf(stderr, "XSetIMValues: "
"Could not set XNDestroyCallback.\n");
xw.ime.spotlist = XVaCreateNestedList(0, XNSpotLocation, &xw.ime.spot,
NULL);
if (xw.ime.xic == NULL) {
xw.ime.xic = XCreateIC(xw.ime.xim, XNInputStyle,
XIMPreeditNothing | XIMStatusNothing,
XNClientWindow, xw.win,
XNDestroyCallback, &icdestroy,
NULL);
}
if (xw.ime.xic == NULL)
fprintf(stderr, "XCreateIC: Could not create input context.\n");
return 1;
}
void
ximinstantiate(Display *dpy, XPointer client, XPointer call)
{
if (ximopen(dpy))
XUnregisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
ximinstantiate, NULL);
}
void
ximdestroy(XIM xim, XPointer client, XPointer call)
{
xw.ime.xim = NULL;
XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
ximinstantiate, NULL);
XFree(xw.ime.spotlist);
}
int
xicdestroy(XIC xim, XPointer client, XPointer call)
{
xw.ime.xic = NULL;
return 1;
}
void
xinit(int cols, int rows)
{
@@ -1138,6 +1089,7 @@ xinit(int cols, int rows)
if (!(xw.dpy = XOpenDisplay(NULL)))
die("can't open display\n");
xw.scr = XDefaultScreen(xw.dpy);
xw.vis = XDefaultVisual(xw.dpy, xw.scr);
/* font */
@@ -1165,7 +1117,8 @@ xinit(int cols, int rows)
xw.attrs.bit_gravity = NorthWestGravity;
xw.attrs.event_mask = FocusChangeMask | KeyPressMask | KeyReleaseMask
| ExposureMask | VisibilityChangeMask | StructureNotifyMask
| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask
;
xw.attrs.colormap = xw.cmap;
root = XRootWindow(xw.dpy, xw.scr);
@@ -1180,6 +1133,7 @@ xinit(int cols, int rows)
memset(&gcvalues, 0, sizeof(gcvalues));
gcvalues.graphics_exposures = False;
dc.gc = XCreateGC(xw.dpy, xw.win, GCGraphicsExposures,
&gcvalues);
xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
@@ -1240,6 +1194,7 @@ xinit(int cols, int rows)
xsel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
if (xsel.xtarget == None)
xsel.xtarget = XA_STRING;
}
int
@@ -1249,7 +1204,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
ushort mode, prevmode = USHRT_MAX;
Font *font = &dc.font;
int frcflags = FRC_NORMAL;
float runewidth = win.cw;
float runewidth = win.cw * ((glyphs[0].mode & ATTR_WIDE) ? 2.0f : 1.0f);
Rune rune;
FT_UInt glyphidx;
FcResult fcres;
@@ -1258,7 +1213,8 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
FcCharSet *fccharset;
int i, f, numspecs = 0;
for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) {
for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i)
{
/* Fetch rune and mode for current glyph. */
rune = glyphs[i].u;
mode = glyphs[i].mode;
@@ -1314,8 +1270,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
/* Nothing was found. Use fontconfig to find matching font. */
if (f >= frclen) {
if (!font->set)
font->set = FcFontSort(0, font->pattern,
1, 0, &fcres);
font->set = FcFontSort(0, font->pattern, 1, 0, &fcres);
fcsets[0] = font->set;
/*
@@ -1329,16 +1284,13 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
fccharset = FcCharSetCreate();
FcCharSetAddChar(fccharset, rune);
FcPatternAddCharSet(fcpattern, FC_CHARSET,
fccharset);
FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset);
FcPatternAddBool(fcpattern, FC_SCALABLE, 1);
FcConfigSubstitute(0, fcpattern,
FcMatchPattern);
FcConfigSubstitute(0, fcpattern, FcMatchPattern);
FcDefaultSubstitute(fcpattern);
fontpattern = FcFontSetMatch(0, fcsets, 1,
fcpattern, &fcres);
fontpattern = FcFontSetMatch(0, fcsets, 1, fcpattern, &fcres);
/* Allocate memory for the new cache entry. */
if (frclen >= frccap) {
@@ -1346,8 +1298,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
frc = xrealloc(frc, frccap * sizeof(Fontcache));
}
frc[frclen].font = XftFontOpenPattern(xw.dpy,
fontpattern);
frc[frclen].font = XftFontOpenPattern(xw.dpy, fontpattern);
if (!frc[frclen].font)
die("XftFontOpenPattern failed seeking fallback font: %s\n",
strerror(errno));
@@ -1375,11 +1326,11 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
}
void
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
{
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y
) {
int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch,
width = charlen * win.cw;
int width = charlen * win.cw;
int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch;
Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
XRenderColor colfg, colbg;
XRectangle r;
@@ -1482,6 +1433,7 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
xclear(winx, winy + win.ch, winx + width, win.h);
/* Clean up the region we want to draw to. */
XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
/* Set the clip region because Xft is sometimes dirty. */
@@ -1513,10 +1465,11 @@ void
xdrawglyph(Glyph g, int x, int y)
{
int numspecs;
XftGlyphFontSpec spec;
XftGlyphFontSpec *specs = xw.specbuf;
numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
xdrawglyphfontspecs(&spec, g, numspecs, x, y);
numspecs = xmakeglyphfontspecs(specs, &g, 1, x, y);
xdrawglyphfontspecs(specs, g, numspecs, x, y
);
}
void
@@ -1527,6 +1480,7 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
/* remove the old cursor */
if (selected(ox, oy))
og.mode ^= ATTR_REVERSE;
xdrawglyph(og, ox, oy);
if (IS_SET(MODE_HIDE))
@@ -1535,7 +1489,8 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
/*
* Select the right color for the right mode.
*/
g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE;
g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE
;
if (IS_SET(MODE_REVERSE)) {
g.mode |= ATTR_REVERSE;
@@ -1555,6 +1510,7 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
g.fg = defaultbg;
g.bg = defaultcs;
}
drawcol = dc.col[g.bg];
}
@@ -1564,13 +1520,13 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
case 7: /* st extension */
g.u = 0x2603; /* snowman (U+2603) */
/* FALLTHROUGH */
case 0: /* Blinking Block */
case 1: /* Blinking Block (Default) */
case 2: /* Steady Block */
case 0: /* Blinking block */
case 1: /* Blinking block (default) */
case 2: /* Steady block */
xdrawglyph(g, cx, cy);
break;
case 3: /* Blinking Underline */
case 4: /* Steady Underline */
case 3: /* Blinking underline */
case 4: /* Steady underline */
XftDrawRect(xw.draw, &drawcol,
borderpx + cx * win.cw,
borderpx + (cy + 1) * win.ch - \
@@ -1659,6 +1615,7 @@ xdrawline(Line line, int x1, int y1, int x2)
{
int i, x, ox, numspecs;
Glyph base, new;
XftGlyphFontSpec *specs = xw.specbuf;
numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
@@ -1683,16 +1640,132 @@ xdrawline(Line line, int x1, int y1, int x2)
}
if (i > 0)
xdrawglyphfontspecs(specs, base, i, ox, y1);
}
void
xfinishdraw(void)
{
XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, win.w,
win.h, 0, 0);
XSetForeground(xw.dpy, dc.gc,
dc.col[IS_SET(MODE_REVERSE)?
defaultfg : defaultbg].pixel);
ImageList *im, *next;
Imlib_Image origin, scaled;
XGCValues gcvalues;
GC gc = NULL;
int width, height;
int del, desty, mode, x1, x2, xend;
int bw = borderpx, bh = borderpx;
Line line;
for (im = term.images; im; im = next) {
next = im->next;
/* do not draw or process the image, if it is not visible */
if (im->x >= term.col || im->y >= term.row || im->y < 0)
continue;
/* scale the image */
width = MAX(im->width * win.cw / im->cw, 1);
height = MAX(im->height * win.ch / im->ch, 1);
if (!im->pixmap) {
im->pixmap = (void *)XCreatePixmap(xw.dpy, xw.win, width, height,
DefaultDepth(xw.dpy, xw.scr)
);
if (!im->pixmap)
continue;
if (win.cw == im->cw && win.ch == im->ch) {
XImage ximage = {
.format = ZPixmap,
.data = (char *)im->pixels,
.width = im->width,
.height = im->height,
.xoffset = 0,
.byte_order = sixelbyteorder,
.bitmap_bit_order = MSBFirst,
.bits_per_pixel = 32,
.bytes_per_line = im->width * 4,
.bitmap_unit = 32,
.bitmap_pad = 32,
.depth = 24
};
XPutImage(xw.dpy, (Drawable)im->pixmap, dc.gc, &ximage, 0, 0, 0, 0, width, height);
if (im->transparent)
im->clipmask = (void *)sixel_create_clipmask((char *)im->pixels, width, height);
} else {
origin = imlib_create_image_using_data(im->width, im->height, (DATA32 *)im->pixels);
if (!origin)
continue;
imlib_context_set_image(origin);
imlib_image_set_has_alpha(1);
imlib_context_set_anti_alias(im->transparent ? 0 : 1); /* anti-aliasing messes up the clip mask */
scaled = imlib_create_cropped_scaled_image(0, 0, im->width, im->height, width, height);
imlib_free_image_and_decache();
if (!scaled)
continue;
imlib_context_set_image(scaled);
imlib_image_set_has_alpha(1);
XImage ximage = {
.format = ZPixmap,
.data = (char *)imlib_image_get_data_for_reading_only(),
.width = width,
.height = height,
.xoffset = 0,
.byte_order = sixelbyteorder,
.bitmap_bit_order = MSBFirst,
.bits_per_pixel = 32,
.bytes_per_line = width * 4,
.bitmap_unit = 32,
.bitmap_pad = 32,
.depth = 24
};
XPutImage(xw.dpy, (Drawable)im->pixmap, dc.gc, &ximage, 0, 0, 0, 0, width, height);
if (im->transparent)
im->clipmask = (void *)sixel_create_clipmask((char *)imlib_image_get_data_for_reading_only(), width, height);
imlib_free_image_and_decache();
}
}
/* create GC */
if (!gc) {
memset(&gcvalues, 0, sizeof(gcvalues));
gcvalues.graphics_exposures = False;
gc = XCreateGC(xw.dpy, xw.win, GCGraphicsExposures, &gcvalues);
}
/* set the clip mask */
desty = bh + im->y * win.ch;
if (im->clipmask) {
XSetClipMask(xw.dpy, gc, (Drawable)im->clipmask);
XSetClipOrigin(xw.dpy, gc, bw + im->x * win.cw, desty);
}
/* draw only the parts of the image that are not erased */
line = term.line[im->y] + im->x;
xend = MIN(im->x + im->cols, term.col);
for (del = 1, x1 = im->x; x1 < xend; x1 = x2) {
mode = line->mode & ATTR_SIXEL;
for (x2 = x1 + 1; x2 < xend; x2++) {
if (((++line)->mode & ATTR_SIXEL) != mode)
break;
}
if (mode) {
XCopyArea(xw.dpy, (Drawable)im->pixmap, xw.buf, gc,
(x1 - im->x) * win.cw, 0,
MIN((x2 - x1) * win.cw, width - (x1 - im->x) * win.cw), height,
bw + x1 * win.cw, desty);
del = 0;
}
}
if (im->clipmask)
XSetClipMask(xw.dpy, gc, None);
/* if all the parts are erased, we can delete the entire image */
if (del && im->x + im->cols <= term.col)
delete_image(im);
}
if (gc)
XFreeGC(xw.dpy, gc);
XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, win.w, win.h, 0, 0);
XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg].pixel);
}
void
@@ -1844,7 +1917,7 @@ kpress(XEvent *ev)
XKeyEvent *e = &ev->xkey;
KeySym ksym = NoSymbol;
char buf[64], *customkey;
int len;
int len, screen;
Rune c;
Status status;
Shortcut *bp;
@@ -1859,9 +1932,13 @@ kpress(XEvent *ev)
} else {
len = XLookupString(e, buf, sizeof buf, &ksym, NULL);
}
screen = tisaltscr() ? S_ALT : S_PRI;
/* 1. shortcuts */
for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
if (ksym == bp->keysym && match(bp->mod, e->state)) {
if (ksym == bp->keysym && match(bp->mod, e->state) &&
(!bp->screen || bp->screen == screen)) {
bp->func(&(bp->arg));
return;
}
@@ -1914,6 +1991,7 @@ cmessage(XEvent *e)
void
resize(XEvent *e)
{
if (e->xconfigure.width == win.w && e->xconfigure.height == win.h)
return;
@@ -1992,7 +2070,8 @@ run(void)
* maximum latency intervals during `cat huge.txt`, and perfect
* sync with periodic updates from animations/key-repeats/etc.
*/
if (FD_ISSET(ttyfd, &rfd) || xev) {
if (FD_ISSET(ttyfd, &rfd) || xev)
{
if (!drawing) {
trigger = now;
drawing = 1;
@@ -2005,7 +2084,8 @@ run(void)
/* idle detected or maxlatency exhausted -> draw */
timeout = -1;
if (blinktimeout && tattrset(ATTR_BLINK)) {
if (blinktimeout && tattrset(ATTR_BLINK))
{
timeout = blinktimeout - TIMEDIFF(now, lastblink);
if (timeout <= 0) {
if (-timeout > blinktimeout) /* start visible */
@@ -2026,11 +2106,13 @@ run(void)
void
usage(void)
{
die("usage: %s [-aiv] [-c class] [-f font] [-g geometry]"
die("usage: %s [-aiv] [-c class]"
" [-f font] [-g geometry]"
" [-n name] [-o file]\n"
" [-T title] [-t title] [-w windowid]"
" [[-e] command [args ...]]\n"
" %s [-aiv] [-c class] [-f font] [-g geometry]"
" %s [-aiv] [-c class]"
" [-f font] [-g geometry]"
" [-n name] [-o file]\n"
" [-T title] [-t title] [-w windowid] -l line"
" [stty_args ...]\n", argv0, argv0);
@@ -2096,6 +2178,7 @@ run:
setlocale(LC_CTYPE, "");
XSetLocaleModifiers("");
cols = MAX(cols, 1);
rows = MAX(rows, 1);
tnew(cols, rows);