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ESC/P 2: Implement ESC 3, A, M, P, \ for 9-pin ESC/P

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Also removed forward declarations.
This commit is contained in:
Lili1228
2026-01-31 15:01:34 +01:00
parent e7fee34332
commit c850beccc9
1 changed files with 313 additions and 330 deletions
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643
src/printer/prt_escp.c
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@@ -267,23 +267,6 @@ typedef struct escp_t {
PALETTE palcol;
} escp_t;
static void
update_font(escp_t *dev);
static void
blit_glyph(escp_t *dev, unsigned destx, unsigned desty, int8_t add);
static void
draw_hline(escp_t *dev, unsigned from_x, unsigned to_x, unsigned y, int8_t broken);
static void
init_codepage(escp_t *dev, uint16_t num);
static void
reset_printer(escp_t *dev);
static void
setup_bit_image(escp_t *dev, uint8_t density, uint16_t num_columns);
static void
print_bit_graph(escp_t *dev, uint8_t ch);
static void
new_page(escp_t *dev, int8_t save, int8_t resetx);
/* Codepage table, needed for ESC t ( */
static const uint16_t codepages[15] = {
0, 437, 932, 850, 851, 853, 855, 860,
@@ -432,93 +415,6 @@ fill_palette(uint8_t redmax, uint8_t greenmax, uint8_t bluemax, uint8_t colorID,
}
}
static void
reset_printer(escp_t *dev)
{
dev->top_margin = dev->left_margin = 0.0;
dev->right_margin = dev->page_width;
switch (dev->paper_size) {
case PAPER_A4:
dev->page_height = A4_PAGE_HEIGHT;
break;
case PAPER_LEGAL_SIDE:
dev->page_height = LEGAL_PAGE_WIDTH;
break;
case PAPER_B4_SIDE:
dev->page_height = B4_PAGE_WIDTH;
break;
case PAPER_LETTER:
default:
dev->page_height = LETTER_PAGE_HEIGHT;
}
dev->bottom_margin = dev->page_height;
/* TODO: these should be configurable. */
dev->color = COLOR_BLACK;
dev->curr_x = dev->curr_y = 0.0;
dev->esc_seen = 0;
dev->fss_seen = 0;
dev->esc_pending = 0;
dev->esc_parms_req = dev->esc_parms_curr = 0;
dev->lpi = PAGE_LPI;
dev->linespacing = 1.0 / dev->lpi;
dev->cpi = PAGE_CPI;
dev->curr_char_table = 1;
dev->font_style = 0;
dev->print_quality = QUALITY_DRAFT;
dev->extra_intra_space = 0.0;
dev->print_upper_control = 1;
dev->bg_remaining_bytes = 0;
dev->density_k = 0;
dev->density_l = 1;
dev->density_y = 2;
dev->density_z = 3;
dev->char_tables[0] = 0; /* italics */
dev->char_tables[1] = dev->char_tables[2] = dev->char_tables[3] = 437; /* all other tables use CP437 */
dev->defined_unit = -1.0;
dev->multipoint_mode = 0;
dev->multipoint_size = 0.0;
dev->multipoint_cpi = 0.0;
dev->hmi = -1;
dev->msb = 255;
dev->print_everything_count = 0;
dev->lq_typeface = TYPEFACE_COURIER;
init_codepage(dev, dev->char_tables[dev->curr_char_table]);
update_font(dev);
new_page(dev, 0, 1);
for (uint8_t i = 0; i < 32; i++)
dev->horizontal_tabs[i] = i * 8.0 * (1.0 / dev->cpi);
dev->num_horizontal_tabs = 32;
dev->num_vertical_tabs = -1;
if (dev->page != NULL)
dev->page->dirty = 0;
escp_log("ESC/P: width=%.1fin,height=%.1fin dpi=%i cpi=%i lpi=%i\n",
dev->page_width, dev->page_height, (int) dev->dpi,
(int) dev->cpi, (int) dev->lpi);
}
static void
reset_printer_hard(escp_t *dev)
{
dev->ack = 0;
timer_disable(&dev->pulse_timer);
timer_stop(&dev->timeout_timer);
reset_printer(dev);
}
/* Select a ASCII->Unicode mapping by CP number */
static void
init_codepage(escp_t *dev, uint16_t num)
{
/* Get the codepage map for this number. */
select_codepage(num, dev->curr_cpmap);
}
static void
update_font(escp_t *dev)
{
@@ -633,6 +529,205 @@ update_font(escp_t *dev)
}
}
/* Select a ASCII->Unicode mapping by CP number */
static void
init_codepage(escp_t *dev, uint16_t num)
{
/* Get the codepage map for this number. */
select_codepage(num, dev->curr_cpmap);
}
static void
reset_printer(escp_t *dev)
{
dev->top_margin = dev->left_margin = 0.0;
dev->right_margin = dev->page_width;
switch (dev->paper_size) {
case PAPER_A4:
dev->page_height = A4_PAGE_HEIGHT;
break;
case PAPER_LEGAL_SIDE:
dev->page_height = LEGAL_PAGE_WIDTH;
break;
case PAPER_B4_SIDE:
dev->page_height = B4_PAGE_WIDTH;
break;
case PAPER_LETTER:
default:
dev->page_height = LETTER_PAGE_HEIGHT;
}
dev->bottom_margin = dev->page_height;
/* TODO: these should be configurable. */
dev->color = COLOR_BLACK;
dev->curr_x = dev->curr_y = 0.0;
dev->esc_seen = 0;
dev->fss_seen = 0;
dev->esc_pending = 0;
dev->esc_parms_req = dev->esc_parms_curr = 0;
dev->lpi = PAGE_LPI;
dev->linespacing = 1.0 / dev->lpi;
dev->cpi = PAGE_CPI;
dev->curr_char_table = 1;
dev->font_style = 0;
dev->print_quality = QUALITY_DRAFT;
dev->extra_intra_space = 0.0;
dev->print_upper_control = 1;
dev->bg_remaining_bytes = 0;
dev->density_k = 0;
dev->density_l = 1;
dev->density_y = 2;
dev->density_z = 3;
dev->char_tables[0] = 0; /* italics */
dev->char_tables[1] = dev->char_tables[2] = dev->char_tables[3] = 437; /* all other tables use CP437 */
dev->defined_unit = -1.0;
dev->multipoint_mode = 0;
dev->multipoint_size = 0.0;
dev->multipoint_cpi = 0.0;
dev->hmi = -1;
dev->msb = 255;
dev->print_everything_count = 0;
dev->lq_typeface = TYPEFACE_COURIER;
init_codepage(dev, dev->char_tables[dev->curr_char_table]);
update_font(dev);
new_page(dev, 0, 1);
for (uint8_t i = 0; i < 32; i++)
dev->horizontal_tabs[i] = i * 8.0 * (1.0 / dev->cpi);
dev->num_horizontal_tabs = 32;
dev->num_vertical_tabs = -1;
if (dev->page != NULL)
dev->page->dirty = 0;
escp_log("ESC/P: width=%.1fin,height=%.1fin dpi=%i cpi=%i lpi=%i\n",
dev->page_width, dev->page_height, (int) dev->dpi,
(int) dev->cpi, (int) dev->lpi);
}
static void
reset_printer_hard(escp_t *dev)
{
dev->ack = 0;
timer_disable(&dev->pulse_timer);
timer_stop(&dev->timeout_timer);
reset_printer(dev);
}
static void
setup_bit_image(escp_t *dev, uint8_t density, uint16_t num_columns)
{
escp_log("Density=%d\n", density);
switch (density) {
case 0:
dev->bg_h_density = 60;
dev->bg_v_density = 60;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 1;
break;
case 1:
dev->bg_h_density = 120;
dev->bg_v_density = 60;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 1;
break;
case 2:
dev->bg_h_density = 120;
dev->bg_v_density = 60;
dev->bg_adjacent = 0;
dev->bg_bytes_per_column = 1;
break;
case 3:
dev->bg_h_density = 60;
dev->bg_v_density = 240;
dev->bg_adjacent = 0;
dev->bg_bytes_per_column = 1;
break;
case 4:
dev->bg_h_density = 80;
dev->bg_v_density = 60;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 1;
break;
case 6:
dev->bg_h_density = 90;
dev->bg_v_density = 60;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 1;
break;
case 32:
dev->bg_h_density = 60;
dev->bg_v_density = 180;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 3;
break;
case 33:
dev->bg_h_density = 120;
dev->bg_v_density = 180;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 3;
break;
case 38:
dev->bg_h_density = 90;
dev->bg_v_density = 180;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 3;
break;
case 39:
dev->bg_h_density = 180;
dev->bg_v_density = 180;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 3;
break;
case 40:
dev->bg_h_density = 360;
dev->bg_v_density = 180;
dev->bg_adjacent = 0;
dev->bg_bytes_per_column = 3;
break;
case 71:
dev->bg_h_density = 180;
dev->bg_v_density = 360;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 6;
break;
case 72:
dev->bg_h_density = 360;
dev->bg_v_density = 360;
dev->bg_adjacent = 0;
dev->bg_bytes_per_column = 6;
break;
case 73:
dev->bg_h_density = 360;
dev->bg_v_density = 360;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 6;
break;
default:
escp_log("ESC/P: Unsupported bit image density %d.\n", density);
break;
}
dev->bg_remaining_bytes = num_columns * dev->bg_bytes_per_column;
dev->bg_bytes_read = 0;
}
/* This is the actual ESC/P interpreter. */
static int
process_char(escp_t *dev, uint8_t ch)
@@ -1081,8 +1176,8 @@ process_char(escp_t *dev, uint8_t ch)
dev->linespacing = 1.0 / 6.0;
break;
case '3': /* set n/180-inch line spacing */
dev->linespacing = (double) dev->esc_parms[0] / 180.0;
case '3': /* set n/180 or n/216-inch line spacing */
dev->linespacing = (double) dev->esc_parms[0] / (dev->lang >= LANG_ESCP ? 180.0 : 216.0);
break;
case '4': /* select italic font */
@@ -1131,9 +1226,9 @@ process_char(escp_t *dev, uint8_t ch)
reset_printer(dev);
break;
case 'A': /* set n/60-inch line spacing */
case 'A': /* set n/60 or n/72-inch line spacing */
case 0x841: // FS A
dev->linespacing = (double) dev->esc_parms[0] / 60.0;
dev->linespacing = (double) dev->esc_parms[0] / (dev->lang >= LANG_ESCP ? 60.0 : 72.0);
break;
case 'C': /* set page length in lines */
@@ -1293,7 +1388,7 @@ process_char(escp_t *dev, uint8_t ch)
rel_move = PARAM16(0);
unit_size = dev->defined_unit;
if (unit_size < 0)
unit_size = (dev->print_quality == QUALITY_DRAFT ? 120.0 : 180.0);
unit_size = (dev->print_quality == QUALITY_DRAFT || dev->lang < LANG_ESCP) ? 120.0 : 180.0;
dev->curr_x += ((double) rel_move / unit_size);
break;
@@ -1650,6 +1745,115 @@ process_char(escp_t *dev, uint8_t ch)
}
}
/* TODO: This can be optimized quite a bit... I'm just too lazy right now ;-) */
static void
blit_glyph(escp_t *dev, unsigned destx, unsigned desty, int8_t add)
{
const FT_Bitmap *bitmap = &dev->fontface->glyph->bitmap;
uint8_t src;
uint8_t *dst;
/* check if freetype is available */
if (ft_lib == NULL)
return;
for (unsigned int y = 0; y < bitmap->rows; y++) {
for (unsigned int x = 0; x < bitmap->width; x++) {
src = *(bitmap->buffer + x + y * bitmap->pitch);
/* ignore background, and respect page size */
if (src > 0 && (destx + x < (unsigned) dev->page->w) && (desty + y < (unsigned) dev->page->h)) {
dst = (uint8_t *) dev->page->pixels + (x + destx) + (y + desty) * dev->page->pitch;
src >>= 3;
if (add) {
if (((*dst) & 0x1f) + src > 31)
*dst |= (dev->color | 0x1f);
else {
*dst += src;
*dst |= dev->color;
}
} else
*dst = src | dev->color;
}
}
}
}
/* Draw anti-aliased line. */
static void
draw_hline(escp_t *dev, unsigned from_x, unsigned to_x, unsigned y, int8_t broken)
{
unsigned breakmod = dev->dpi / 15;
unsigned gapstart = (breakmod * 4) / 5;
for (unsigned int x = from_x; x <= to_x; x++) {
/* Skip parts if broken line or going over the border. */
if ((!broken || (x % breakmod <= gapstart)) && (x < dev->page->w)) {
if (y > 0 && (y - 1) < dev->page->h)
*((uint8_t *) dev->page->pixels + x + (y - 1) * (unsigned) dev->page->pitch) = 240;
if (y < dev->page->h)
*((uint8_t *) dev->page->pixels + x + y * (unsigned) dev->page->pitch) = !broken ? 255 : 240;
if (y + 1 < dev->page->h)
*((uint8_t *) dev->page->pixels + x + (y + 1) * (unsigned) dev->page->pitch) = 240;
}
}
}
static void
print_bit_graph(escp_t *dev, uint8_t ch)
{
uint8_t pixel_w; /* width of the "pixel" */
uint8_t pixel_h; /* height of the "pixel" */
double old_y;
dev->bg_column[dev->bg_bytes_read++] = ch;
dev->bg_remaining_bytes--;
/* Only print after reading a full column. */
if (dev->bg_bytes_read < dev->bg_bytes_per_column)
return;
old_y = dev->curr_y;
pixel_w = 1;
pixel_h = 1;
if (dev->bg_adjacent) {
/* if page DPI is bigger than bitgraphics DPI, drawn pixels get "bigger" */
pixel_w = dev->dpi / dev->bg_h_density > 0 ? dev->dpi / dev->bg_h_density : 1;
pixel_h = dev->dpi / dev->bg_v_density > 0 ? dev->dpi / dev->bg_v_density : 1;
}
for (uint8_t i = 0; i < dev->bg_bytes_per_column; i++) {
/* for each byte */
for (uint8_t j = 128; j != 0; j >>= 1) {
/* for each bit */
if (dev->bg_column[i] & j) {
/* draw a "pixel" */
for (uint8_t xx = 0; xx < pixel_w; xx++) {
for (uint8_t yy = 0; yy < pixel_h; yy++) {
if (((PIXX + xx) < (unsigned) dev->page->w) && ((PIXY + yy) < (unsigned) dev->page->h))
*((uint8_t *) dev->page->pixels + (PIXX + xx) + (PIXY + yy) * dev->page->pitch) |= (dev->color | 0x1f);
}
}
}
dev->curr_y += 1.0 / (double) dev->bg_v_density;
}
}
/* Mark page dirty. */
dev->page->dirty = 1;
/* Restore Y-position. */
dev->curr_y = old_y;
dev->bg_bytes_read = 0;
/* Advance print head. */
dev->curr_x += 1.0 / dev->bg_h_density;
}
static void
handle_char(escp_t *dev, uint8_t ch)
{
@@ -1767,227 +1971,6 @@ handle_char(escp_t *dev, uint8_t ch)
}
}
/* TODO: This can be optimized quite a bit... I'm just too lazy right now ;-) */
static void
blit_glyph(escp_t *dev, unsigned destx, unsigned desty, int8_t add)
{
const FT_Bitmap *bitmap = &dev->fontface->glyph->bitmap;
uint8_t src;
uint8_t *dst;
/* check if freetype is available */
if (ft_lib == NULL)
return;
for (unsigned int y = 0; y < bitmap->rows; y++) {
for (unsigned int x = 0; x < bitmap->width; x++) {
src = *(bitmap->buffer + x + y * bitmap->pitch);
/* ignore background, and respect page size */
if (src > 0 && (destx + x < (unsigned) dev->page->w) && (desty + y < (unsigned) dev->page->h)) {
dst = (uint8_t *) dev->page->pixels + (x + destx) + (y + desty) * dev->page->pitch;
src >>= 3;
if (add) {
if (((*dst) & 0x1f) + src > 31)
*dst |= (dev->color | 0x1f);
else {
*dst += src;
*dst |= dev->color;
}
} else
*dst = src | dev->color;
}
}
}
}
/* Draw anti-aliased line. */
static void
draw_hline(escp_t *dev, unsigned from_x, unsigned to_x, unsigned y, int8_t broken)
{
unsigned breakmod = dev->dpi / 15;
unsigned gapstart = (breakmod * 4) / 5;
for (unsigned int x = from_x; x <= to_x; x++) {
/* Skip parts if broken line or going over the border. */
if ((!broken || (x % breakmod <= gapstart)) && (x < dev->page->w)) {
if (y > 0 && (y - 1) < dev->page->h)
*((uint8_t *) dev->page->pixels + x + (y - 1) * (unsigned) dev->page->pitch) = 240;
if (y < dev->page->h)
*((uint8_t *) dev->page->pixels + x + y * (unsigned) dev->page->pitch) = !broken ? 255 : 240;
if (y + 1 < dev->page->h)
*((uint8_t *) dev->page->pixels + x + (y + 1) * (unsigned) dev->page->pitch) = 240;
}
}
}
static void
setup_bit_image(escp_t *dev, uint8_t density, uint16_t num_columns)
{
escp_log("Density=%d\n", density);
switch (density) {
case 0:
dev->bg_h_density = 60;
dev->bg_v_density = 60;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 1;
break;
case 1:
dev->bg_h_density = 120;
dev->bg_v_density = 60;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 1;
break;
case 2:
dev->bg_h_density = 120;
dev->bg_v_density = 60;
dev->bg_adjacent = 0;
dev->bg_bytes_per_column = 1;
break;
case 3:
dev->bg_h_density = 60;
dev->bg_v_density = 240;
dev->bg_adjacent = 0;
dev->bg_bytes_per_column = 1;
break;
case 4:
dev->bg_h_density = 80;
dev->bg_v_density = 60;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 1;
break;
case 6:
dev->bg_h_density = 90;
dev->bg_v_density = 60;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 1;
break;
case 32:
dev->bg_h_density = 60;
dev->bg_v_density = 180;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 3;
break;
case 33:
dev->bg_h_density = 120;
dev->bg_v_density = 180;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 3;
break;
case 38:
dev->bg_h_density = 90;
dev->bg_v_density = 180;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 3;
break;
case 39:
dev->bg_h_density = 180;
dev->bg_v_density = 180;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 3;
break;
case 40:
dev->bg_h_density = 360;
dev->bg_v_density = 180;
dev->bg_adjacent = 0;
dev->bg_bytes_per_column = 3;
break;
case 71:
dev->bg_h_density = 180;
dev->bg_v_density = 360;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 6;
break;
case 72:
dev->bg_h_density = 360;
dev->bg_v_density = 360;
dev->bg_adjacent = 0;
dev->bg_bytes_per_column = 6;
break;
case 73:
dev->bg_h_density = 360;
dev->bg_v_density = 360;
dev->bg_adjacent = 1;
dev->bg_bytes_per_column = 6;
break;
default:
escp_log("ESC/P: Unsupported bit image density %d.\n", density);
break;
}
dev->bg_remaining_bytes = num_columns * dev->bg_bytes_per_column;
dev->bg_bytes_read = 0;
}
static void
print_bit_graph(escp_t *dev, uint8_t ch)
{
uint8_t pixel_w; /* width of the "pixel" */
uint8_t pixel_h; /* height of the "pixel" */
double old_y;
dev->bg_column[dev->bg_bytes_read++] = ch;
dev->bg_remaining_bytes--;
/* Only print after reading a full column. */
if (dev->bg_bytes_read < dev->bg_bytes_per_column)
return;
old_y = dev->curr_y;
pixel_w = 1;
pixel_h = 1;
if (dev->bg_adjacent) {
/* if page DPI is bigger than bitgraphics DPI, drawn pixels get "bigger" */
pixel_w = dev->dpi / dev->bg_h_density > 0 ? dev->dpi / dev->bg_h_density : 1;
pixel_h = dev->dpi / dev->bg_v_density > 0 ? dev->dpi / dev->bg_v_density : 1;
}
for (uint8_t i = 0; i < dev->bg_bytes_per_column; i++) {
/* for each byte */
for (uint8_t j = 128; j != 0; j >>= 1) {
/* for each bit */
if (dev->bg_column[i] & j) {
/* draw a "pixel" */
for (uint8_t xx = 0; xx < pixel_w; xx++) {
for (uint8_t yy = 0; yy < pixel_h; yy++) {
if (((PIXX + xx) < (unsigned) dev->page->w) && ((PIXY + yy) < (unsigned) dev->page->h))
*((uint8_t *) dev->page->pixels + (PIXX + xx) + (PIXY + yy) * dev->page->pitch) |= (dev->color | 0x1f);
}
}
}
dev->curr_y += 1.0 / (double) dev->bg_v_density;
}
}
/* Mark page dirty. */
dev->page->dirty = 1;
/* Restore Y-position. */
dev->curr_y = old_y;
dev->bg_bytes_read = 0;
/* Advance print head. */
dev->curr_x += 1.0 / dev->bg_h_density;
}
static void
write_data(uint8_t val, void *priv)
{