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foot/box-drawing.c

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#include "box-drawing.h"
#include <stdio.h>
#include <errno.h>
#define LOG_MODULE "box-drawing"
#define LOG_ENABLE_DBG 0
#include "log.h"
#include "macros.h"
#include "stride.h"
#include "terminal.h"
#include "util.h"
#include "xmalloc.h"
#define LIGHT 1.0
#define HEAVY 2.0
#if defined(__GNUC__)
#pragma GCC optimize("Os")
#endif
struct buf {
uint8_t *data;
int width;
int height;
int stride;
int dpi;
};
static int
_thickness(struct buf *buf, float pts)
{
return max(pts * buf->dpi / 72.0, 1);
}
#define thickness(pts) _thickness(buf, pts)
static void NOINLINE
_hline(struct buf *buf, int x1, int x2, int y, int thick)
{
x1 = min(max(x1, 0), buf->width);
x2 = min(max(x2, 0), buf->width);
for (size_t row = max(y, 0); row < min(y + thick, buf->height); row++) {
for (size_t col = x1; col < x2; col++) {
size_t idx = col / 8;
size_t bit_no = col % 8;
buf->data[row * buf->stride + idx] |= 1 << bit_no;
}
}
}
#define hline(x1, x2, y, thick) _hline(buf, x1, x2, y, thick)
static void NOINLINE
_vline(struct buf *buf, int y1, int y2, int x, int thick)
{
y1 = min(max(y1, 0), buf->height);
y2 = min(max(y2, 0), buf->height);
for (size_t row = y1; row < y2; row++) {
for (size_t col = max(x, 0); col < min(x + thick, buf->width); col++) {
size_t idx = col / 8;
size_t bit_no = col % 8;
buf->data[row * buf->stride + idx] |= 1 << bit_no;
}
}
}
#define vline(y1, y2, x, thick) _vline(buf, y1, y2, x, thick)
static void NOINLINE
_rect(struct buf *buf, int x1, int y1, int x2, int y2)
{
for (size_t row = max(y1, 0); row < min(y2, buf->height); row++) {
for (size_t col = max(x1, 0); col < min(x2, buf->width); col++) {
size_t idx = col / 8;
size_t bit_no = col % 8;
buf->data[row * buf->stride + idx] |= 1 << bit_no;
}
}
}
#define rect(x1, y1, x2, y2) _rect(buf, x1, y1, x2, y2)
static void NOINLINE
_hline_middle(struct buf *buf, float _thick)
{
int thick = thickness(_thick);
hline(0, buf->width, (buf->height - thick) / 2, thick);
}
static void NOINLINE
_hline_middle_left(struct buf *buf, float _vthick, float _hthick)
{
int vthick = thickness(_vthick);
int hthick = thickness(_hthick);
_hline(buf, 0, (buf->width + vthick) / 2, (buf->height - hthick) / 2, hthick);
}
static void NOINLINE
_hline_middle_right(struct buf *buf, float _vthick, float _hthick)
{
int vthick = thickness(_vthick);
int hthick = thickness(_hthick);
hline((buf->width - vthick) / 2, buf->width, (buf->height - hthick) / 2, hthick);
}
static void NOINLINE
_vline_middle(struct buf *buf, float _thick)
{
int thick = thickness(_thick);
vline(0, buf->height, (buf->width - thick) / 2, thick);
}
static void NOINLINE
_vline_middle_up(struct buf *buf, float _vthick, float _hthick)
{
int vthick = thickness(_vthick);
int hthick = thickness(_hthick);
vline(0, (buf->height + hthick) / 2, (buf->width - vthick) / 2, vthick);
}
static void NOINLINE
_vline_middle_down(struct buf *buf, float _vthick, float _hthick)
{
int vthick = thickness(_vthick);
int hthick = thickness(_hthick);
vline((buf->height - hthick) / 2, buf->height, (buf->width - vthick) / 2, vthick);
}
#define hline_middle(thick) _hline_middle(buf, thick)
#define hline_middle_left(thick) _hline_middle_left(buf, thick, thick)
#define hline_middle_right(thick) _hline_middle_right(buf, thick, thick)
#define vline_middle(thick) _vline_middle(buf, thick)
#define vline_middle_up(thick) _vline_middle_up(buf, thick, thick)
#define vline_middle_down(thick) _vline_middle_down(buf, thick, thick)
static void
draw_box_drawings_light_horizontal(struct buf *buf)
{
hline_middle(LIGHT);
}
static void
draw_box_drawings_heavy_horizontal(struct buf *buf)
{
hline_middle(HEAVY);
}
static void
draw_box_drawings_light_vertical(struct buf *buf)
{
vline_middle(LIGHT);
}
static void
draw_box_drawings_heavy_vertical(struct buf *buf)
{
vline_middle(HEAVY);
}
static void
draw_box_drawings_dash_horizontal(struct buf *buf, int count, int thick, int gap)
{
int width = buf->width;
int height = buf->height;
assert(count >= 2 && count <= 4);
const int gap_count = count - 1;
int dash_width = (width - (gap_count * gap)) / count;
while (dash_width <= 0 && gap > 1) {
gap--;
dash_width = (width - (gap_count * gap)) / count;
}
if (dash_width <= 0) {
hline_middle(LIGHT);
return;
}
assert(count * dash_width + gap_count * gap <= width);
int remaining = width - count * dash_width - gap_count * gap;
int x[4] = {0};
int w[4] = {dash_width, dash_width, dash_width, dash_width};
x[0] = 0;
x[1] = x[0] + w[0] + gap;
if (count == 2)
w[1] = width - x[1];
else if (count == 3)
w[1] += remaining;
else
w[1] += remaining / 2;
if (count >= 3) {
x[2] = x[1] + w[1] + gap;
if (count == 3)
w[2] = width - x[2];
else
w[2] += remaining - remaining / 2;
}
if (count >= 4) {
x[3] = x[2] + w[2] + gap;
w[3] = width - x[3];
}
hline(x[0], x[0] + w[0], (height - thick) / 2, thick);
hline(x[1], x[1] + w[1], (height - thick) / 2, thick);
if (count >= 3)
hline(x[2], x[2] + w[2], (height - thick) / 2, thick);
if (count >= 4)
hline(x[3], x[3] + w[3], (height - thick) / 2, thick);
}
static void
draw_box_drawings_dash_vertical(struct buf *buf, int count, int thick, int gap)
{
int width = buf->width;
int height = buf->height;
assert(count >= 2 && count <= 4);
const int gap_count = count - 1;
int dash_height = (height - (gap_count * gap)) / count;
while (dash_height <= 0 && gap > 1) {
gap--;
dash_height = (height - (gap_count * gap)) / count;
}
if (dash_height <= 0) {
vline_middle(LIGHT);
return;
}
assert(count * dash_height + gap_count * gap <= height);
int remaining = height - count * dash_height - gap_count * gap;
int y[4] = {0};
int h[4] = {dash_height, dash_height, dash_height, dash_height};
y[0] = 0;
y[1] = y[0] + h[0] + gap;
if (count == 2)
h[1] = height - y[1];
else if (count == 3)
h[1] += remaining;
else
h[1] += remaining / 2;
if (count >= 3) {
y[2] = y[1] + h[1] + gap;
if (count == 3)
h[2] = height - y[2];
else
h[2] += remaining - remaining / 2;
}
if (count >= 4) {
y[3] = y[2] + h[2] + gap;
h[3] = height - y[3];
}
vline(y[0], y[0] + h[0], (width - thick) / 2, thick);
vline(y[1], y[1] + h[1], (width - thick) / 2, thick);
if (count >= 3)
vline(y[2], y[2] + h[2], (width - thick) / 2, thick);
if (count >= 4)
vline(y[3], y[3] + h[3], (width - thick) / 2, thick);
}
static void
draw_box_drawings_light_triple_dash_horizontal(struct buf *buf)
{
draw_box_drawings_dash_horizontal(buf, 3, thickness(LIGHT), thickness(LIGHT));
}
static void
draw_box_drawings_heavy_triple_dash_horizontal(struct buf *buf)
{
draw_box_drawings_dash_horizontal(buf, 3, thickness(HEAVY), thickness(LIGHT));
}
static void
draw_box_drawings_light_triple_dash_vertical(struct buf *buf)
{
draw_box_drawings_dash_vertical(buf, 3, thickness(LIGHT), thickness(HEAVY));
}
static void
draw_box_drawings_heavy_triple_dash_vertical(struct buf *buf)
{
draw_box_drawings_dash_vertical(buf, 3, thickness(HEAVY), thickness(HEAVY));
}
static void
draw_box_drawings_light_quadruple_dash_horizontal(struct buf *buf)
{
draw_box_drawings_dash_horizontal(buf, 4, thickness(LIGHT), thickness(LIGHT));
}
static void
draw_box_drawings_heavy_quadruple_dash_horizontal(struct buf *buf)
{
draw_box_drawings_dash_horizontal(buf, 4, thickness(HEAVY), thickness(LIGHT));
}
static void
draw_box_drawings_light_quadruple_dash_vertical(struct buf *buf)
{
draw_box_drawings_dash_vertical(buf, 4, thickness(LIGHT), thickness(LIGHT));
}
static void
draw_box_drawings_heavy_quadruple_dash_vertical(struct buf *buf)
{
draw_box_drawings_dash_vertical(buf, 4, thickness(HEAVY), thickness(LIGHT));
}
static void
draw_box_drawings_light_down_and_right(struct buf *buf)
{
hline_middle_right(LIGHT);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_down_light_and_right_heavy(struct buf *buf)
{
_hline_middle_right(buf, LIGHT, HEAVY);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_down_heavy_and_right_light(struct buf *buf)
{
hline_middle_right(LIGHT);
_vline_middle_down(buf, HEAVY, LIGHT);
}
static void
draw_box_drawings_heavy_down_and_right(struct buf *buf)
{
hline_middle_right(HEAVY);
vline_middle_down(HEAVY);
}
static void
draw_box_drawings_light_down_and_left(struct buf *buf)
{
hline_middle_left(LIGHT);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_down_light_and_left_heavy(struct buf *buf)
{
_hline_middle_left(buf, LIGHT, HEAVY);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_down_heavy_and_left_light(struct buf *buf)
{
hline_middle_left(LIGHT);
_vline_middle_down(buf, HEAVY, LIGHT);
}
static void
draw_box_drawings_heavy_down_and_left(struct buf *buf)
{
hline_middle_left(HEAVY);
vline_middle_down(HEAVY);
}
static void
draw_box_drawings_light_up_and_right(struct buf *buf)
{
hline_middle_right(LIGHT);
vline_middle_up(LIGHT);
}
static void
draw_box_drawings_up_light_and_right_heavy(struct buf *buf)
{
_hline_middle_right(buf, LIGHT, HEAVY);
vline_middle_up(LIGHT);
}
static void
draw_box_drawings_up_heavy_and_right_light(struct buf *buf)
{
hline_middle_right(LIGHT);
_vline_middle_up(buf, HEAVY, LIGHT);
}
static void
draw_box_drawings_heavy_up_and_right(struct buf *buf)
{
hline_middle_right(HEAVY);
vline_middle_up(HEAVY);
}
static void
draw_box_drawings_light_up_and_left(struct buf *buf)
{
hline_middle_left(LIGHT);
vline_middle_up(LIGHT);
}
static void
draw_box_drawings_up_light_and_left_heavy(struct buf *buf)
{
_hline_middle_left(buf, LIGHT, HEAVY);
vline_middle_up(LIGHT);
}
static void
draw_box_drawings_up_heavy_and_left_light(struct buf *buf)
{
hline_middle_left(LIGHT);
_vline_middle_up(buf, HEAVY, LIGHT);
}
static void
draw_box_drawings_heavy_up_and_left(struct buf *buf)
{
hline_middle_left(HEAVY);
vline_middle_up(HEAVY);
}
static void
draw_box_drawings_light_vertical_and_right(struct buf *buf)
{
hline_middle_right(LIGHT);
vline_middle(LIGHT);
}
static void
draw_box_drawings_vertical_light_and_right_heavy(struct buf *buf)
{
_hline_middle_right(buf, LIGHT, HEAVY);
vline_middle(LIGHT);
}
static void
draw_box_drawings_up_heavy_and_right_down_light(struct buf *buf)
{
hline_middle_right(LIGHT);
_vline_middle_up(buf, HEAVY, LIGHT);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_down_heavy_and_right_up_light(struct buf *buf)
{
hline_middle_right(LIGHT);
vline_middle_up(LIGHT);
_vline_middle_down(buf, HEAVY, LIGHT);
}
static void
draw_box_drawings_vertical_heavy_and_right_light(struct buf *buf)
{
hline_middle_right(LIGHT);
vline_middle(HEAVY);
}
static void
draw_box_drawings_down_light_and_right_up_heavy(struct buf *buf)
{
hline_middle_right(HEAVY);
vline_middle_up(HEAVY);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_up_light_and_right_down_heavy(struct buf *buf)
{
hline_middle_right(HEAVY);
vline_middle_up(LIGHT);
vline_middle_down(HEAVY);
}
static void
draw_box_drawings_heavy_vertical_and_right(struct buf *buf)
{
hline_middle_right(HEAVY);
vline_middle(HEAVY);
}
static void
draw_box_drawings_light_vertical_and_left(struct buf *buf)
{
hline_middle_left(LIGHT);
vline_middle(LIGHT);
}
static void
draw_box_drawings_vertical_light_and_left_heavy(struct buf *buf)
{
_hline_middle_left(buf, LIGHT, HEAVY);
vline_middle(LIGHT);
}
static void
draw_box_drawings_up_heavy_and_left_down_light(struct buf *buf)
{
hline_middle_left(LIGHT);
_vline_middle_up(buf, HEAVY, LIGHT);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_down_heavy_and_left_up_light(struct buf *buf)
{
hline_middle_left(LIGHT);
vline_middle_up(LIGHT);
_vline_middle_down(buf, HEAVY, LIGHT);
}
static void
draw_box_drawings_vertical_heavy_and_left_light(struct buf *buf)
{
hline_middle_left(LIGHT);
vline_middle(HEAVY);
}
static void
draw_box_drawings_down_light_and_left_up_heavy(struct buf *buf)
{
hline_middle_left(HEAVY);
vline_middle_up(HEAVY);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_up_light_and_left_down_heavy(struct buf *buf)
{
hline_middle_left(HEAVY);
vline_middle_up(LIGHT);
vline_middle_down(HEAVY);
}
static void
draw_box_drawings_heavy_vertical_and_left(struct buf *buf)
{
hline_middle_left(HEAVY);
vline_middle(HEAVY);
}
static void
draw_box_drawings_light_down_and_horizontal(struct buf *buf)
{
hline_middle(LIGHT);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_left_heavy_and_right_down_light(struct buf *buf)
{
_hline_middle_left(buf, LIGHT, HEAVY);
hline_middle_right(LIGHT);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_right_heavy_and_left_down_light(struct buf *buf)
{
hline_middle_left(LIGHT);
_hline_middle_right(buf, LIGHT, HEAVY);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_down_light_and_horizontal_heavy(struct buf *buf)
{
hline_middle(HEAVY);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_down_heavy_and_horizontal_light(struct buf *buf)
{
hline_middle(LIGHT);
_vline_middle_down(buf, HEAVY, LIGHT);
}
static void
draw_box_drawings_right_light_and_left_down_heavy(struct buf *buf)
{
hline_middle_left(HEAVY);
hline_middle_right(LIGHT);
vline_middle_down(HEAVY);
}
static void
draw_box_drawings_left_light_and_right_down_heavy(struct buf *buf)
{
hline_middle_left(LIGHT);
hline_middle_right(HEAVY);
vline_middle_down(HEAVY);
}
static void
draw_box_drawings_heavy_down_and_horizontal(struct buf *buf)
{
hline_middle(HEAVY);
vline_middle_down(HEAVY);
}
static void
draw_box_drawings_light_up_and_horizontal(struct buf *buf)
{
hline_middle(LIGHT);
vline_middle_up(LIGHT);
}
static void
draw_box_drawings_left_heavy_and_right_up_light(struct buf *buf)
{
_hline_middle_left(buf, LIGHT, HEAVY);
hline_middle_right(LIGHT);
vline_middle_up(LIGHT);
}
static void
draw_box_drawings_right_heavy_and_left_up_light(struct buf *buf)
{
hline_middle_left(LIGHT);
_hline_middle_right(buf, LIGHT, HEAVY);
vline_middle_up(LIGHT);
}
static void
draw_box_drawings_up_light_and_horizontal_heavy(struct buf *buf)
{
hline_middle(HEAVY);
vline_middle_up(LIGHT);
}
static void
draw_box_drawings_up_heavy_and_horizontal_light(struct buf *buf)
{
hline_middle(LIGHT);
_vline_middle_up(buf, HEAVY, LIGHT);
}
static void
draw_box_drawings_right_light_and_left_up_heavy(struct buf *buf)
{
hline_middle_left(HEAVY);
hline_middle_right(LIGHT);
vline_middle_up(HEAVY);
}
static void
draw_box_drawings_left_light_and_right_up_heavy(struct buf *buf)
{
hline_middle_left(LIGHT);
hline_middle_right(HEAVY);
vline_middle_up(HEAVY);
}
static void
draw_box_drawings_heavy_up_and_horizontal(struct buf *buf)
{
hline_middle(HEAVY);
vline_middle_up(HEAVY);
}
static void
draw_box_drawings_light_vertical_and_horizontal(struct buf *buf)
{
hline_middle(LIGHT);
vline_middle(LIGHT);
}
static void
draw_box_drawings_left_heavy_and_right_vertical_light(struct buf *buf)
{
_hline_middle_left(buf, LIGHT, HEAVY);
hline_middle_right(LIGHT);
vline_middle(LIGHT);
}
static void
draw_box_drawings_right_heavy_and_left_vertical_light(struct buf *buf)
{
hline_middle_left(LIGHT);
_hline_middle_right(buf, LIGHT, HEAVY);
vline_middle(LIGHT);
}
static void
draw_box_drawings_vertical_light_and_horizontal_heavy(struct buf *buf)
{
hline_middle(HEAVY);
vline_middle(LIGHT);
}
static void
draw_box_drawings_up_heavy_and_down_horizontal_light(struct buf *buf)
{
hline_middle(LIGHT);
_vline_middle_up(buf, HEAVY, LIGHT);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_down_heavy_and_up_horizontal_light(struct buf *buf)
{
hline_middle(LIGHT);
vline_middle_up(LIGHT);
_vline_middle_down(buf, HEAVY, LIGHT);
}
static void
draw_box_drawings_vertical_heavy_and_horizontal_light(struct buf *buf)
{
hline_middle(LIGHT);
vline_middle(HEAVY);
}
static void
draw_box_drawings_left_up_heavy_and_right_down_light(struct buf *buf)
{
hline_middle_left(HEAVY);
hline_middle_right(LIGHT);
vline_middle_up(HEAVY);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_right_up_heavy_and_left_down_light(struct buf *buf)
{
hline_middle_left(LIGHT);
hline_middle_right(HEAVY);
vline_middle_up(HEAVY);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_left_down_heavy_and_right_up_light(struct buf *buf)
{
hline_middle_left(HEAVY);
hline_middle_right(LIGHT);
vline_middle_up(LIGHT);
vline_middle_down(HEAVY);
}
static void
draw_box_drawings_right_down_heavy_and_left_up_light(struct buf *buf)
{
hline_middle_left(LIGHT);
hline_middle_right(HEAVY);
vline_middle_up(LIGHT);
vline_middle_down(HEAVY);
}
static void
draw_box_drawings_down_light_and_up_horizontal_heavy(struct buf *buf)
{
hline_middle(HEAVY);
vline_middle_up(HEAVY);
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_up_light_and_down_horizontal_heavy(struct buf *buf)
{
hline_middle(HEAVY);
vline_middle_up(LIGHT);
vline_middle_down(HEAVY);
}
static void
draw_box_drawings_right_light_and_left_vertical_heavy(struct buf *buf)
{
hline_middle_left(HEAVY);
hline_middle_right(LIGHT);
vline_middle(HEAVY);
}
static void
draw_box_drawings_left_light_and_right_vertical_heavy(struct buf *buf)
{
hline_middle_left(LIGHT);
hline_middle_right(HEAVY);
vline_middle(HEAVY);
}
static void
draw_box_drawings_heavy_vertical_and_horizontal(struct buf *buf)
{
hline_middle(HEAVY);
vline_middle(HEAVY);
}
static void
draw_box_drawings_light_double_dash_horizontal(struct buf *buf)
{
draw_box_drawings_dash_horizontal(buf, 2, thickness(LIGHT), thickness(LIGHT));
}
static void
draw_box_drawings_heavy_double_dash_horizontal(struct buf *buf)
{
draw_box_drawings_dash_horizontal(buf, 2, thickness(HEAVY), thickness(LIGHT));
}
static void
draw_box_drawings_light_double_dash_vertical(struct buf *buf)
{
draw_box_drawings_dash_vertical(buf, 2, thickness(LIGHT), thickness(HEAVY));
}
static void
draw_box_drawings_heavy_double_dash_vertical(struct buf *buf)
{
draw_box_drawings_dash_vertical(buf, 2, thickness(HEAVY), thickness(HEAVY));
}
static void
draw_box_drawings_double_horizontal(struct buf *buf)
{
int thick = thickness(LIGHT);
int mid = (buf->height - thick * 3) / 2;
hline(0, buf->width, mid, thick);
hline(0, buf->width, mid + 2 * thick, thick);
}
static void
draw_box_drawings_double_vertical(struct buf *buf)
{
int thick = thickness(LIGHT);
int mid = (buf->width - thick * 3) / 2;
vline(0, buf->height, mid, thick);
vline(0, buf->height, mid + 2 * thick, thick);
}
static void
draw_box_drawings_down_single_and_right_double(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick) / 2;
vline_middle_down(LIGHT);
hline(vmid, buf->width, hmid, thick);
hline(vmid, buf->width, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_down_double_and_right_single(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick) / 2;
int vmid = (buf->width - thick * 3) / 2;
hline_middle_right(LIGHT);
vline(hmid, buf->height, vmid, thick);
vline(hmid, buf->height, vmid + 2 * thick, thick);
}
static void
draw_box_drawings_double_down_and_right(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick * 3) / 2;
vline(hmid, buf->height, vmid, thick);
vline(hmid + 2 * thick, buf->height, vmid + 2 * thick, thick);
hline(vmid, buf->width, hmid, thick);
hline(vmid + 2 * thick, buf->width, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_down_single_and_left_double(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width + thick) / 2;
vline_middle_down(LIGHT);
hline(0, vmid, hmid, thick);
hline(0, vmid, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_down_double_and_left_single(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick) / 2;
int vmid = (buf->width - thick * 3) / 2;
hline_middle_left(LIGHT);
vline(hmid, buf->height, vmid, thick);
vline(hmid, buf->height, vmid + 2 * thick, thick);
}
static void
draw_box_drawings_double_down_and_left(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick * 3) / 2;
vline(hmid + 2 * thick, buf->height, vmid, thick);
vline(hmid, buf->height, vmid + 2 * thick, thick);
hline(0, vmid + 2 * thick, hmid, thick);
hline(0, vmid, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_up_single_and_right_double(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick) / 2;
vline_middle_up(LIGHT);
hline(vmid, buf->width, hmid, thick);
hline(vmid, buf->width, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_up_double_and_right_single(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height + thick) / 2;
int vmid = (buf->width - thick * 3) / 2;
hline_middle_right(LIGHT);
vline(0, hmid, vmid, thick);
vline(0, hmid, vmid + 2 * thick, thick);
}
static void
draw_box_drawings_double_up_and_right(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick * 3) / 2;
vline(0, hmid + 2 * thick, vmid, thick);
vline(0, hmid, vmid + 2 * thick, thick);
hline(vmid + 2 * thick, buf->width, hmid, thick);
hline(vmid, buf->width, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_up_single_and_left_double(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width + thick) / 2;
vline_middle_up(LIGHT);
hline(0, vmid, hmid, thick);
hline(0, vmid, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_up_double_and_left_single(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height + thick) / 2;
int vmid = (buf->width - thick * 3) / 2;
hline_middle_left(LIGHT);
vline(0, hmid, vmid, thick);
vline(0, hmid, vmid + 2 * thick, thick);
}
static void
draw_box_drawings_double_up_and_left(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick * 3) / 2;
vline(0, hmid + 0 * thick + thick, vmid, thick);
vline(0, hmid + 2 * thick + thick, vmid + 2 * thick, thick);
hline(0, vmid, hmid, thick);
hline(0, vmid + 2 * thick, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_vertical_single_and_right_double(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick) / 2;
vline_middle(LIGHT);
hline(vmid, buf->width, hmid, thick);
hline(vmid, buf->width, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_vertical_double_and_right_single(struct buf *buf)
{
int thick = thickness(LIGHT);
int vmid = (buf->width - thick * 3) / 2;
hline(vmid + 2 * thick, buf->width, (buf->height - thick) / 2, thick);
vline(0, buf->height, vmid, thick);
vline(0, buf->height, vmid + 2 * thick, thick);
}
static void
draw_box_drawings_double_vertical_and_right(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick * 3) / 2;
vline(0, buf->height, vmid, thick);
vline(0, hmid, vmid + 2 * thick, thick);
vline(hmid + 2 * thick, buf->height, vmid + 2 * thick, thick);
hline(vmid + 2 * thick, buf->width, hmid, thick);
hline(vmid + 2 * thick, buf->width, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_vertical_single_and_left_double(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width + thick) / 2;
vline_middle(LIGHT);
hline(0, vmid, hmid, thick);
hline(0, vmid, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_vertical_double_and_left_single(struct buf *buf)
{
int thick = thickness(LIGHT);
int vmid = (buf->width - thick * 3) / 2;
hline(0, vmid, (buf->height - thick) / 2, thick);
vline(0, buf->height, vmid, thick);
vline(0, buf->height, vmid + 2 * thick, thick);
}
static void
draw_box_drawings_double_vertical_and_left(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick * 3) / 2;
vline(0, buf->height, vmid + 2 * thick, thick);
vline(0, hmid, vmid, thick);
vline(hmid + 2 * thick, buf->height, vmid, thick);
hline(0, vmid + thick, hmid, thick);
hline(0, vmid, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_down_single_and_horizontal_double(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
vline(hmid + 2 * thick, buf->height, (buf->width - thick) / 2, thick);
hline(0, buf->width, hmid, thick);
hline(0, buf->width, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_down_double_and_horizontal_single(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick) / 2;
int vmid = (buf->width - thick * 3) / 2;
hline_middle(LIGHT);
vline(hmid, buf->height, vmid, thick);
vline(hmid, buf->height, vmid + 2 * thick, thick);
}
static void
draw_box_drawings_double_down_and_horizontal(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick * 3) / 2;
hline(0, buf->width, hmid, thick);
hline(0, vmid, hmid + 2 * thick, thick);
hline(vmid + 2 * thick, buf->width, hmid + 2 * thick, thick);
vline(hmid + 2 * thick, buf->height, vmid, thick);
vline(hmid + 2 * thick, buf->height, vmid + 2 * thick, thick);
}
static void
draw_box_drawings_up_single_and_horizontal_double(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick) / 2;
vline(0, hmid, vmid, thick);
hline(0, buf->width, hmid, thick);
hline(0, buf->width, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_up_double_and_horizontal_single(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick) / 2;
int vmid = (buf->width - thick * 3) / 2;
hline_middle(LIGHT);
vline(0, hmid, vmid, thick);
vline(0, hmid, vmid + 2 * thick, thick);
}
static void
draw_box_drawings_double_up_and_horizontal(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick * 3) / 2;
vline(0, hmid, vmid, thick);
vline(0, hmid, vmid + 2 * thick, thick);
hline(0, vmid + thick, hmid, thick);
hline(vmid + 2 * thick, buf->width, hmid, thick);
hline(0, buf->width, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_vertical_single_and_horizontal_double(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
vline_middle(LIGHT);
hline(0, buf->width, hmid, thick);
hline(0, buf->width, hmid + 2 * thick, thick);
}
static void
draw_box_drawings_vertical_double_and_horizontal_single(struct buf *buf)
{
int thick = thickness(LIGHT);
int vmid = (buf->width - thick * 3) / 2;
hline_middle(LIGHT);
vline(0, buf->height, vmid, thick);
vline(0, buf->height, vmid + 2 * thick, thick);
}
static void
draw_box_drawings_double_vertical_and_horizontal(struct buf *buf)
{
int thick = thickness(LIGHT);
int hmid = (buf->height - thick * 3) / 2;
int vmid = (buf->width - thick * 3) / 2;
hline(0, vmid, hmid, thick);
hline(vmid + 2 * thick, buf->width, hmid, thick);
hline(0, vmid, hmid + 2 * thick, thick);
hline(vmid + 2 * thick, buf->width, hmid + 2 * thick, thick);
vline(0, hmid, vmid, thick);
vline(0, hmid, vmid + 2 * thick, thick);
vline(hmid + 2 * thick, buf->height, vmid, thick);
vline(hmid + 2 * thick, buf->height, vmid + 2 * thick, thick);
}
static void
draw_box_drawings_light_arc(wchar_t wc, struct buf *buf)
{
int thick = thickness(LIGHT);
int delta = thick / 2;
int extra = thick % 2;
/* x^2 / a^2 + y^2 / b^2 == 1 */
int hw = (buf->width - thick) / 2;
int hh = (buf->height - thick) / 2;
double a = hw;
double b = hh;
double a2 = a * a;
double b2 = b * b;
int num_samples = buf->height * 16;
for (int i = 0; i < num_samples; i++) {
double y = i / 16.;
double x = sqrt(a2 * (1. - y * y / b2));
int row = round(y);
int col = round(x);
if (col < 0)
continue;
switch (wc) {
case L'╭':
row = buf->height - row - 1 - (1 - buf->height % 2);
col = buf->width - col - 1 - (1 - buf->width % 2);
break;
case L'╮':
row = buf->height - row - 1 - (1 - buf->height % 2);
break;
case L'╰':
col = buf->width - col - 1 - (1 - buf->width % 2);
break;
}
for (int r = row - delta; r < row + delta + extra; r++) {
if (r < 0 || r >= buf->height)
continue;
for (int c = col - delta; c < col + delta + extra; c++) {
if (c >= 0 && c < buf->width) {
size_t idx = c / 8;
size_t bit_no = c % 8;
buf->data[r * buf->stride + idx] |= 1 << bit_no;
}
}
}
}
if (wc == L'╭' || wc == L'╰') {
for (int x = 2 * hw; x < buf->width; x++) {
for (int y = max(hh - delta, 0); y < min(hh + delta + extra, buf->height); y++) {
size_t ofs = x / 8;
size_t bit_no = x % 8;
buf->data[y * buf->stride + ofs] |= 1 << bit_no;
}
}
}
if (wc == L'╭' || wc == L'╮') {
for (int y = 2 * hh; y < buf->height; y++) {
for (int x = max(hw - delta, 0); x < min(hw + delta + extra, buf->width); x++) {
size_t ofs = x / 8;
size_t bit_no = x % 8;
buf->data[y * buf->stride + ofs] |= 1 << bit_no;
}
}
}
}
static void
draw_box_drawings_light_diagonal(struct buf *buf, double k, double c)
{
#define linear_equation(x) (k * (x) + c)
int num_samples = buf->width * 16;
for (int i = 0; i < num_samples; i++) {
double x = i / 16.;
int col = round(x);
int row = round(linear_equation(x));
if (row >= 0 && row < buf->height) {
size_t ofs = col / 8;
size_t bit_no = col % 8;
buf->data[row * buf->stride + ofs] |= 1 << bit_no;
}
}
#undef linear_equation
}
static void
draw_box_drawings_light_diagonal_upper_right_to_lower_left(struct buf *buf)
{
/* y = k * x + c */
double c = buf->height - 1;
double k = (0 - (buf->height - 1)) / (double)(buf->width - 1 - 0);
draw_box_drawings_light_diagonal(buf, k, c);
}
static void
draw_box_drawings_light_diagonal_upper_left_to_lower_right(struct buf *buf)
{
/* y = k * x + c */
double c = 0;
double k = (buf->height - 1 - 0) / (double)(buf->width - 1 - 0);
draw_box_drawings_light_diagonal(buf, k, c);
}
static void
draw_box_drawings_light_diagonal_cross(struct buf *buf)
{
draw_box_drawings_light_diagonal_upper_right_to_lower_left(buf);
draw_box_drawings_light_diagonal_upper_left_to_lower_right(buf);
}
static void
draw_box_drawings_light_left(struct buf *buf)
{
hline_middle_left(LIGHT);
}
static void
draw_box_drawings_light_up(struct buf *buf)
{
vline_middle_up(LIGHT);
}
static void
draw_box_drawings_light_right(struct buf *buf)
{
hline_middle_right(LIGHT);
}
static void
draw_box_drawings_light_down(struct buf *buf)
{
vline_middle_down(LIGHT);
}
static void
draw_box_drawings_heavy_left(struct buf *buf)
{
hline_middle_left(HEAVY);
}
static void
draw_box_drawings_heavy_up(struct buf *buf)
{
vline_middle_up(HEAVY);
}
static void
draw_box_drawings_heavy_right(struct buf *buf)
{
hline_middle_right(HEAVY);
}
static void
draw_box_drawings_heavy_down(struct buf *buf)
{
vline_middle_down(HEAVY);
}
static void
draw_box_drawings_light_left_and_heavy_right(struct buf *buf)
{
hline_middle_left(LIGHT);
hline_middle_right(HEAVY);
}
static void
draw_box_drawings_light_up_and_heavy_down(struct buf *buf)
{
vline_middle_up(LIGHT);
vline_middle_down(HEAVY);
}
static void
draw_box_drawings_heavy_left_and_light_right(struct buf *buf)
{
hline_middle_left(HEAVY);
hline_middle_right(LIGHT);
}
static void
draw_box_drawings_heavy_up_and_light_down(struct buf *buf)
{
vline_middle_up(HEAVY);
vline_middle_down(LIGHT);
}
static void
draw_upper_half_block(struct buf *buf)
{
rect(0, 0, buf->width, round(buf->height / 2.));
}
static void
draw_lower_one_eighth_block(struct buf *buf)
{
rect(0, buf->height - round(buf->height / 8.), buf->width, buf->height);
}
static void
draw_lower_one_quarter_block(struct buf *buf)
{
rect(0, buf->height - round(buf->height / 4.), buf->width, buf->height);
}
static void
draw_lower_three_eighths_block(struct buf *buf)
{
rect(0, buf->height - round(3. * buf->height / 8.), buf->width, buf->height);
}
static void
draw_lower_half_block(struct buf *buf)
{
rect(0, buf->height - round(buf->height / 2.), buf->width, buf->height);
}
static void
draw_lower_five_eighths_block(struct buf *buf)
{
rect(0, buf->height - round(5. * buf->height / 8.), buf->width, buf->height);
}
static void
draw_lower_three_quarters_block(struct buf *buf)
{
rect(0, buf->height - round(3. * buf->height / 4.), buf->width, buf->height);
}
static void
draw_lower_seven_eighths_block(struct buf *buf)
{
rect(0, buf->height - round(7. * buf->height / 8.), buf->width, buf->height);
}
static void
draw_full_block(struct buf *buf)
{
rect(0, 0, buf->width, buf->height);
}
static void
draw_left_seven_eighths_block(struct buf *buf)
{
rect(0, 0, round(7. * buf->width / 8.), buf->height);
}
static void
draw_left_three_quarters_block(struct buf *buf)
{
rect(0, 0, round(3. * buf->width / 4.), buf->height);
}
static void
draw_left_five_eighths_block(struct buf *buf)
{
rect(0, 0, round(5. * buf->width / 8.), buf->height);
}
static void
draw_left_half_block(struct buf *buf)
{
rect(0, 0, round(buf->width / 2.), buf->height);
}
static void
draw_left_three_eighths_block(struct buf *buf)
{
rect(0, 0, round(3. * buf->width / 8.), buf->height);
}
static void
draw_left_one_quarter_block(struct buf *buf)
{
rect(0, 0, round(buf->width / 4.), buf->height);
}
static void
draw_left_one_eighth_block(struct buf *buf)
{
rect(0, 0, round(buf->width / 8.), buf->height);
}
static void
draw_right_half_block(struct buf *buf)
{
rect(round(buf->width / 2.), 0, buf->width, buf->height);
}
static void
draw_light_shade(struct buf *buf)
{
for (size_t row = 0; row < buf->height; row += 2) {
for (size_t col = 0; col < buf->width; col += 2) {
size_t idx = col / 8;
size_t bit_no = col % 8;
buf->data[row * buf->stride + idx] |= 1 << bit_no;
}
}
}
static void
draw_medium_shade(struct buf *buf)
{
for (size_t row = 0; row < buf->height; row++) {
for (size_t col = row % 2; col < buf->width; col += 2) {
size_t idx = col / 8;
size_t bit_no = col % 8;
buf->data[row * buf->stride + idx] |= 1 << bit_no;
}
}
}
static void
draw_dark_shade(struct buf *buf)
{
for (size_t row = 0; row < buf->height; row++) {
for (size_t col = 0; col < buf->width; col += 1 + row % 2) {
size_t idx = col / 8;
size_t bit_no = col % 8;
buf->data[row * buf->stride + idx] |= 1 << bit_no;
}
}
}
static void
draw_upper_one_eighth_block(struct buf *buf)
{
rect(0, 0, buf->width, round(buf->height / 8.));
}
static void
draw_right_one_eighth_block(struct buf *buf)
{
rect(buf->width - round(buf->width / 8.), 0, buf->width, buf->height);
}
static void NOINLINE
quad_upper_left(struct buf *buf)
{
rect(0, 0, ceil(buf->width / 2.), ceil(buf->height / 2.));
}
static void NOINLINE
quad_upper_right(struct buf *buf)
{
rect(floor(buf->width / 2.), 0, buf->width, ceil(buf->height / 2.));
}
static void NOINLINE
quad_lower_left(struct buf *buf)
{
rect(0, floor(buf->height / 2.), ceil(buf->width / 2.), buf->height);
}
static void NOINLINE
quad_lower_right(struct buf *buf)
{
rect(floor(buf->width / 2.), floor(buf->height / 2.), buf->width, buf->height);
}
static void NOINLINE
draw_quadrant_lower_left(struct buf *buf)
{
quad_lower_left(buf);
}
static void NOINLINE
draw_quadrant_lower_right(struct buf *buf)
{
quad_lower_right(buf);
}
static void
draw_quadrant_upper_left(struct buf *buf)
{
quad_upper_left(buf);
}
static void
draw_quadrant_upper_left_and_lower_left_and_lower_right(struct buf *buf)
{
quad_upper_left(buf);
quad_lower_left(buf);
quad_lower_right(buf);
}
static void
draw_quadrant_upper_left_and_lower_right(struct buf *buf)
{
quad_upper_left(buf);
quad_lower_right(buf);
}
static void
draw_quadrant_upper_left_and_upper_right_and_lower_left(struct buf *buf)
{
quad_upper_left(buf);
quad_upper_right(buf);
quad_lower_left(buf);
}
static void
draw_quadrant_upper_left_and_upper_right_and_lower_right(struct buf *buf)
{
quad_upper_left(buf);
quad_upper_right(buf);
quad_lower_right(buf);
}
static void
draw_quadrant_upper_right(struct buf *buf)
{
quad_upper_right(buf);
}
static void
draw_quadrant_upper_right_and_lower_left(struct buf *buf)
{
quad_upper_right(buf);
quad_lower_left(buf);
}
static void
draw_quadrant_upper_right_and_lower_left_and_lower_right(struct buf *buf)
{
quad_upper_right(buf);
quad_lower_left(buf);
quad_lower_right(buf);
}
static void NOINLINE
sextant_upper_left(struct buf *buf)
{
rect(0, 0, round(buf->width / 2.), round(buf->height / 3.));
}
static void NOINLINE
sextant_middle_left(struct buf *buf)
{
rect(0, buf->height / 3, round(buf->width / 2.), round(2. * buf->height / 3.));
}
static void NOINLINE
sextant_lower_left(struct buf *buf)
{
rect(0, 2 * buf->height / 3, round(buf->width / 2.), buf->height);
}
static void NOINLINE
sextant_upper_right(struct buf *buf)
{
rect(buf->width / 2, 0, buf->width, round(buf->height / 3.));
}
static void NOINLINE
sextant_middle_right(struct buf *buf)
{
rect(buf->width / 2, buf->height / 3, buf->width, round(2. * buf->height / 3.));
}
static void NOINLINE
sextant_lower_right(struct buf *buf)
{
rect(buf->width / 2, 2 * buf->height / 3, buf->width, buf->height);
}
static void
draw_sextant(wchar_t wc, struct buf *buf)
{
/*
* Each byte encodes one sextant:
*
* Bit sextant
* 0 upper left
* 1 middle left
* 2 lower left
* 3 upper right
* 4 middle right
* 5 lower right
*/
#define UPPER_LEFT (1 << 0)
#define MIDDLE_LEFT (1 << 1)
#define LOWER_LEFT (1 << 2)
#define UPPER_RIGHT (1 << 3)
#define MIDDLE_RIGHT (1 << 4)
#define LOWER_RIGHT (1 << 5)
static const uint8_t matrix[60] = {
/* U+1fb00 - U+1fb0f */
UPPER_LEFT,
UPPER_RIGHT,
UPPER_LEFT | UPPER_RIGHT,
MIDDLE_LEFT,
UPPER_LEFT | MIDDLE_LEFT,
UPPER_RIGHT | MIDDLE_LEFT,
UPPER_LEFT | UPPER_RIGHT | MIDDLE_LEFT,
MIDDLE_RIGHT,
UPPER_LEFT | MIDDLE_RIGHT,
UPPER_RIGHT | MIDDLE_RIGHT,
UPPER_LEFT | UPPER_RIGHT | MIDDLE_RIGHT,
MIDDLE_LEFT | MIDDLE_RIGHT,
UPPER_LEFT | MIDDLE_LEFT | MIDDLE_RIGHT,
UPPER_RIGHT | MIDDLE_LEFT | MIDDLE_RIGHT,
UPPER_LEFT | UPPER_RIGHT | MIDDLE_LEFT | MIDDLE_RIGHT,
LOWER_LEFT,
/* U+1fb10 - U+1fb1f */
UPPER_LEFT | LOWER_LEFT,
UPPER_RIGHT | LOWER_LEFT,
UPPER_LEFT | UPPER_RIGHT | LOWER_LEFT,
MIDDLE_LEFT | LOWER_LEFT,
UPPER_RIGHT | MIDDLE_LEFT | LOWER_LEFT,
UPPER_LEFT | UPPER_RIGHT | MIDDLE_LEFT | LOWER_LEFT,
MIDDLE_RIGHT | LOWER_LEFT,
UPPER_LEFT | MIDDLE_RIGHT | LOWER_LEFT,
UPPER_RIGHT | MIDDLE_RIGHT | LOWER_LEFT,
UPPER_LEFT | UPPER_RIGHT | MIDDLE_RIGHT | LOWER_LEFT,
MIDDLE_LEFT | MIDDLE_RIGHT | LOWER_LEFT,
UPPER_LEFT | MIDDLE_LEFT | MIDDLE_RIGHT | LOWER_LEFT,
UPPER_RIGHT | MIDDLE_LEFT | MIDDLE_RIGHT | LOWER_LEFT,
UPPER_LEFT | UPPER_RIGHT | MIDDLE_LEFT | MIDDLE_RIGHT | LOWER_LEFT,
LOWER_RIGHT,
UPPER_LEFT | LOWER_RIGHT,
/* U+1fb20 - U+1fb2f */
UPPER_RIGHT | LOWER_RIGHT,
UPPER_LEFT | UPPER_RIGHT | LOWER_RIGHT,
MIDDLE_LEFT | LOWER_RIGHT,
UPPER_LEFT | MIDDLE_LEFT | LOWER_RIGHT,
UPPER_RIGHT | MIDDLE_LEFT | LOWER_RIGHT,
UPPER_LEFT | UPPER_RIGHT | MIDDLE_LEFT | LOWER_RIGHT,
MIDDLE_RIGHT | LOWER_RIGHT,
UPPER_LEFT | MIDDLE_RIGHT | LOWER_RIGHT,
UPPER_LEFT | UPPER_RIGHT | MIDDLE_RIGHT | LOWER_RIGHT,
MIDDLE_LEFT | MIDDLE_RIGHT | LOWER_RIGHT,
UPPER_LEFT | MIDDLE_LEFT | MIDDLE_RIGHT | LOWER_RIGHT,
UPPER_RIGHT | MIDDLE_LEFT | MIDDLE_RIGHT | LOWER_RIGHT,
UPPER_LEFT | UPPER_RIGHT | MIDDLE_LEFT | MIDDLE_RIGHT | LOWER_RIGHT,
LOWER_LEFT | LOWER_RIGHT,
UPPER_LEFT | LOWER_LEFT | LOWER_RIGHT,
UPPER_RIGHT | LOWER_LEFT | LOWER_RIGHT,
/* U+1fb30 - U+1fb3b */
UPPER_LEFT | UPPER_RIGHT | LOWER_LEFT | LOWER_RIGHT,
MIDDLE_LEFT | LOWER_LEFT | LOWER_RIGHT,
UPPER_LEFT | MIDDLE_LEFT | LOWER_LEFT | LOWER_RIGHT,
UPPER_RIGHT | MIDDLE_LEFT | LOWER_LEFT | LOWER_RIGHT,
UPPER_LEFT | UPPER_RIGHT | MIDDLE_LEFT | LOWER_LEFT | LOWER_RIGHT,
MIDDLE_RIGHT | LOWER_LEFT | LOWER_RIGHT,
UPPER_LEFT | MIDDLE_RIGHT | LOWER_LEFT | LOWER_RIGHT,
UPPER_RIGHT | MIDDLE_RIGHT | LOWER_LEFT | LOWER_RIGHT,
UPPER_LEFT | UPPER_RIGHT | MIDDLE_RIGHT | LOWER_LEFT | LOWER_RIGHT,
MIDDLE_LEFT | MIDDLE_RIGHT | LOWER_LEFT | LOWER_RIGHT,
UPPER_LEFT | MIDDLE_LEFT | MIDDLE_RIGHT | LOWER_LEFT | LOWER_RIGHT,
UPPER_RIGHT | MIDDLE_LEFT | MIDDLE_RIGHT | LOWER_LEFT | LOWER_RIGHT,
};
assert(wc >= 0x1fb00 && wc <= 0x1fb3b);
const size_t idx = wc - 0x1fb00;
assert(idx < ALEN(matrix));
uint8_t encoded = matrix[idx];
if (encoded & UPPER_LEFT)
sextant_upper_left(buf);
if (encoded & MIDDLE_LEFT)
sextant_middle_left(buf);
if (encoded & LOWER_LEFT)
sextant_lower_left(buf);
if (encoded & UPPER_RIGHT)
sextant_upper_right(buf);
if (encoded & MIDDLE_RIGHT)
sextant_middle_right(buf);
if (encoded & LOWER_RIGHT)
sextant_lower_right(buf);
}
static void
draw_glyph(wchar_t wc, struct buf *buf)
{
#if defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpedantic"
#endif
switch (wc) {
case 0x2500: draw_box_drawings_light_horizontal(buf); break;
case 0x2501: draw_box_drawings_heavy_horizontal(buf); break;
case 0x2502: draw_box_drawings_light_vertical(buf); break;
case 0x2503: draw_box_drawings_heavy_vertical(buf); break;
case 0x2504: draw_box_drawings_light_triple_dash_horizontal(buf); break;
case 0x2505: draw_box_drawings_heavy_triple_dash_horizontal(buf); break;
case 0x2506: draw_box_drawings_light_triple_dash_vertical(buf); break;
case 0x2507: draw_box_drawings_heavy_triple_dash_vertical(buf); break;
case 0x2508: draw_box_drawings_light_quadruple_dash_horizontal(buf); break;
case 0x2509: draw_box_drawings_heavy_quadruple_dash_horizontal(buf); break;
case 0x250a: draw_box_drawings_light_quadruple_dash_vertical(buf); break;
case 0x250b: draw_box_drawings_heavy_quadruple_dash_vertical(buf); break;
case 0x250c: draw_box_drawings_light_down_and_right(buf); break;
case 0x250d: draw_box_drawings_down_light_and_right_heavy(buf); break;
case 0x250e: draw_box_drawings_down_heavy_and_right_light(buf); break;
case 0x250f: draw_box_drawings_heavy_down_and_right(buf); break;
case 0x2510: draw_box_drawings_light_down_and_left(buf); break;
case 0x2511: draw_box_drawings_down_light_and_left_heavy(buf); break;
case 0x2512: draw_box_drawings_down_heavy_and_left_light(buf); break;
case 0x2513: draw_box_drawings_heavy_down_and_left(buf); break;
case 0x2514: draw_box_drawings_light_up_and_right(buf); break;
case 0x2515: draw_box_drawings_up_light_and_right_heavy(buf); break;
case 0x2516: draw_box_drawings_up_heavy_and_right_light(buf); break;
case 0x2517: draw_box_drawings_heavy_up_and_right(buf); break;
case 0x2518: draw_box_drawings_light_up_and_left(buf); break;
case 0x2519: draw_box_drawings_up_light_and_left_heavy(buf); break;
case 0x251a: draw_box_drawings_up_heavy_and_left_light(buf); break;
case 0x251b: draw_box_drawings_heavy_up_and_left(buf); break;
case 0x251c: draw_box_drawings_light_vertical_and_right(buf); break;
case 0x251d: draw_box_drawings_vertical_light_and_right_heavy(buf); break;
case 0x251e: draw_box_drawings_up_heavy_and_right_down_light(buf); break;
case 0x251f: draw_box_drawings_down_heavy_and_right_up_light(buf); break;
case 0x2520: draw_box_drawings_vertical_heavy_and_right_light(buf); break;
case 0x2521: draw_box_drawings_down_light_and_right_up_heavy(buf); break;
case 0x2522: draw_box_drawings_up_light_and_right_down_heavy(buf); break;
case 0x2523: draw_box_drawings_heavy_vertical_and_right(buf); break;
case 0x2524: draw_box_drawings_light_vertical_and_left(buf); break;
case 0x2525: draw_box_drawings_vertical_light_and_left_heavy(buf); break;
case 0x2526: draw_box_drawings_up_heavy_and_left_down_light(buf); break;
case 0x2527: draw_box_drawings_down_heavy_and_left_up_light(buf); break;
case 0x2528: draw_box_drawings_vertical_heavy_and_left_light(buf); break;
case 0x2529: draw_box_drawings_down_light_and_left_up_heavy(buf); break;
case 0x252a: draw_box_drawings_up_light_and_left_down_heavy(buf); break;
case 0x252b: draw_box_drawings_heavy_vertical_and_left(buf); break;
case 0x252c: draw_box_drawings_light_down_and_horizontal(buf); break;
case 0x252d: draw_box_drawings_left_heavy_and_right_down_light(buf); break;
case 0x252e: draw_box_drawings_right_heavy_and_left_down_light(buf); break;
case 0x252f: draw_box_drawings_down_light_and_horizontal_heavy(buf); break;
case 0x2530: draw_box_drawings_down_heavy_and_horizontal_light(buf); break;
case 0x2531: draw_box_drawings_right_light_and_left_down_heavy(buf); break;
case 0x2532: draw_box_drawings_left_light_and_right_down_heavy(buf); break;
case 0x2533: draw_box_drawings_heavy_down_and_horizontal(buf); break;
case 0x2534: draw_box_drawings_light_up_and_horizontal(buf); break;
case 0x2535: draw_box_drawings_left_heavy_and_right_up_light(buf); break;
case 0x2536: draw_box_drawings_right_heavy_and_left_up_light(buf); break;
case 0x2537: draw_box_drawings_up_light_and_horizontal_heavy(buf); break;
case 0x2538: draw_box_drawings_up_heavy_and_horizontal_light(buf); break;
case 0x2539: draw_box_drawings_right_light_and_left_up_heavy(buf); break;
case 0x253a: draw_box_drawings_left_light_and_right_up_heavy(buf); break;
case 0x253b: draw_box_drawings_heavy_up_and_horizontal(buf); break;
case 0x253c: draw_box_drawings_light_vertical_and_horizontal(buf); break;
case 0x253d: draw_box_drawings_left_heavy_and_right_vertical_light(buf); break;
case 0x253e: draw_box_drawings_right_heavy_and_left_vertical_light(buf); break;
case 0x253f: draw_box_drawings_vertical_light_and_horizontal_heavy(buf); break;
case 0x2540: draw_box_drawings_up_heavy_and_down_horizontal_light(buf); break;
case 0x2541: draw_box_drawings_down_heavy_and_up_horizontal_light(buf); break;
case 0x2542: draw_box_drawings_vertical_heavy_and_horizontal_light(buf); break;
case 0x2543: draw_box_drawings_left_up_heavy_and_right_down_light(buf); break;
case 0x2544: draw_box_drawings_right_up_heavy_and_left_down_light(buf); break;
case 0x2545: draw_box_drawings_left_down_heavy_and_right_up_light(buf); break;
case 0x2546: draw_box_drawings_right_down_heavy_and_left_up_light(buf); break;
case 0x2547: draw_box_drawings_down_light_and_up_horizontal_heavy(buf); break;
case 0x2548: draw_box_drawings_up_light_and_down_horizontal_heavy(buf); break;
case 0x2549: draw_box_drawings_right_light_and_left_vertical_heavy(buf); break;
case 0x254a: draw_box_drawings_left_light_and_right_vertical_heavy(buf); break;
case 0x254b: draw_box_drawings_heavy_vertical_and_horizontal(buf); break;
case 0x254c: draw_box_drawings_light_double_dash_horizontal(buf); break;
case 0x254d: draw_box_drawings_heavy_double_dash_horizontal(buf); break;
case 0x254e: draw_box_drawings_light_double_dash_vertical(buf); break;
case 0x254f: draw_box_drawings_heavy_double_dash_vertical(buf); break;
case 0x2550: draw_box_drawings_double_horizontal(buf); break;
case 0x2551: draw_box_drawings_double_vertical(buf); break;
case 0x2552: draw_box_drawings_down_single_and_right_double(buf); break;
case 0x2553: draw_box_drawings_down_double_and_right_single(buf); break;
case 0x2554: draw_box_drawings_double_down_and_right(buf); break;
case 0x2555: draw_box_drawings_down_single_and_left_double(buf); break;
case 0x2556: draw_box_drawings_down_double_and_left_single(buf); break;
case 0x2557: draw_box_drawings_double_down_and_left(buf); break;
case 0x2558: draw_box_drawings_up_single_and_right_double(buf); break;
case 0x2559: draw_box_drawings_up_double_and_right_single(buf); break;
case 0x255a: draw_box_drawings_double_up_and_right(buf); break;
case 0x255b: draw_box_drawings_up_single_and_left_double(buf); break;
case 0x255c: draw_box_drawings_up_double_and_left_single(buf); break;
case 0x255d: draw_box_drawings_double_up_and_left(buf); break;
case 0x255e: draw_box_drawings_vertical_single_and_right_double(buf); break;
case 0x255f: draw_box_drawings_vertical_double_and_right_single(buf); break;
case 0x2560: draw_box_drawings_double_vertical_and_right(buf); break;
case 0x2561: draw_box_drawings_vertical_single_and_left_double(buf); break;
case 0x2562: draw_box_drawings_vertical_double_and_left_single(buf); break;
case 0x2563: draw_box_drawings_double_vertical_and_left(buf); break;
case 0x2564: draw_box_drawings_down_single_and_horizontal_double(buf); break;
case 0x2565: draw_box_drawings_down_double_and_horizontal_single(buf); break;
case 0x2566: draw_box_drawings_double_down_and_horizontal(buf); break;
case 0x2567: draw_box_drawings_up_single_and_horizontal_double(buf); break;
case 0x2568: draw_box_drawings_up_double_and_horizontal_single(buf); break;
case 0x2569: draw_box_drawings_double_up_and_horizontal(buf); break;
case 0x256a: draw_box_drawings_vertical_single_and_horizontal_double(buf); break;
case 0x256b: draw_box_drawings_vertical_double_and_horizontal_single(buf); break;
case 0x256c: draw_box_drawings_double_vertical_and_horizontal(buf); break;
case 0x256d ... 0x2570: draw_box_drawings_light_arc(wc, buf); break;
case 0x2571: draw_box_drawings_light_diagonal_upper_right_to_lower_left(buf); break;
case 0x2572: draw_box_drawings_light_diagonal_upper_left_to_lower_right(buf); break;
case 0x2573: draw_box_drawings_light_diagonal_cross(buf); break;
case 0x2574: draw_box_drawings_light_left(buf); break;
case 0x2575: draw_box_drawings_light_up(buf); break;
case 0x2576: draw_box_drawings_light_right(buf); break;
case 0x2577: draw_box_drawings_light_down(buf); break;
case 0x2578: draw_box_drawings_heavy_left(buf); break;
case 0x2579: draw_box_drawings_heavy_up(buf); break;
case 0x257a: draw_box_drawings_heavy_right(buf); break;
case 0x257b: draw_box_drawings_heavy_down(buf); break;
case 0x257c: draw_box_drawings_light_left_and_heavy_right(buf); break;
case 0x257d: draw_box_drawings_light_up_and_heavy_down(buf); break;
case 0x257e: draw_box_drawings_heavy_left_and_light_right(buf); break;
case 0x257f: draw_box_drawings_heavy_up_and_light_down(buf); break;
case 0x2580: draw_upper_half_block(buf); break;
case 0x2581: draw_lower_one_eighth_block(buf); break;
case 0x2582: draw_lower_one_quarter_block(buf); break;
case 0x2583: draw_lower_three_eighths_block(buf); break;
case 0x2584: draw_lower_half_block(buf); break;
case 0x2585: draw_lower_five_eighths_block(buf); break;
case 0x2586: draw_lower_three_quarters_block(buf); break;
case 0x2587: draw_lower_seven_eighths_block(buf); break;
case 0x2588: draw_full_block(buf); break;
case 0x2589: draw_left_seven_eighths_block(buf); break;
case 0x258a: draw_left_three_quarters_block(buf); break;
case 0x258b: draw_left_five_eighths_block(buf); break;
case 0x258c: draw_left_half_block(buf); break;
case 0x258d: draw_left_three_eighths_block(buf); break;
case 0x258e: draw_left_one_quarter_block(buf); break;
case 0x258f: draw_left_one_eighth_block(buf); break;
case 0x2590: draw_right_half_block(buf); break;
case 0x2591: draw_light_shade(buf); break;
case 0x2592: draw_medium_shade(buf); break;
case 0x2593: draw_dark_shade(buf); break;
case 0x2594: draw_upper_one_eighth_block(buf); break;
case 0x2595: draw_right_one_eighth_block(buf); break;
case 0x2596: draw_quadrant_lower_left(buf); break;
case 0x2597: draw_quadrant_lower_right(buf); break;
case 0x2598: draw_quadrant_upper_left(buf); break;
case 0x2599: draw_quadrant_upper_left_and_lower_left_and_lower_right(buf); break;
case 0x259a: draw_quadrant_upper_left_and_lower_right(buf); break;
case 0x259b: draw_quadrant_upper_left_and_upper_right_and_lower_left(buf); break;
case 0x259c: draw_quadrant_upper_left_and_upper_right_and_lower_right(buf); break;
case 0x259d: draw_quadrant_upper_right(buf); break;
case 0x259e: draw_quadrant_upper_right_and_lower_left(buf); break;
case 0x259f: draw_quadrant_upper_right_and_lower_left_and_lower_right(buf); break;
case 0x1fb00 ... 0x1fb3b: draw_sextant(wc, buf); break;
}
#if defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
}
struct fcft_glyph * COLD
box_drawing(const struct terminal *term, wchar_t wc)
{
int width = term->cell_width;
int height = term->cell_height;
int stride = stride_for_format_and_width(PIXMAN_a1, width);
uint8_t *data = xcalloc(height * stride, 1);
pixman_image_t *pix = pixman_image_create_bits_no_clear(
PIXMAN_a1, width, height, (uint32_t*)data, stride);
if (pix == NULL) {
errno = ENOMEM;
perror(__func__);
abort();
}
struct buf buf = {
.data = data,
.width = width,
.height = height,
.stride = stride,
.dpi = term->font_dpi,
};
draw_glyph(wc, &buf);
struct fcft_glyph *glyph = xmalloc(sizeof(*glyph));
*glyph = (struct fcft_glyph){
.wc = wc,
.cols = 1,
.pix = pix,
.x = 0,
.y = term->fonts[0]->ascent,
.width = width,
.height = height,
.advance = {
.x = width,
.y = height,
},
};
return glyph;
}
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