libptouch を複数ソースに分割し src/lib に配置
- core / usb / print / status / png と libptouch_internal.h に分割 - 旧単一ファイル src/libptouch.c を削除 - CMake のソース一覧と include パスを更新 - README・libptouch.h の参照パスを追随 Made-with: Cursor
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296
src/lib/libptouch_print.c
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296
src/lib/libptouch_print.c
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/*
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* libptouch — raster layout, transpose, P-touch print job (ESC/P bulk)
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*
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* Author: knb
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* Email: knb@artif.org
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*/
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#include "libptouch_internal.h"
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#include <libusb.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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/* cv_ptp900_jpn_raster_102.pdf: テープ幅から印刷可能ドット */
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static libptouch_err_t layout_from_status(uint8_t media_kind, uint8_t media_wbyte,
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uint16_t *left, uint16_t *print_dots,
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uint16_t *right)
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{
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if (media_kind == 0x11u || media_kind == 0x17u) {
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switch (media_wbyte) {
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case 0x06:
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*left = 244;
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*print_dots = 56;
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*right = 260;
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return LIBPTOUCH_OK;
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case 0x09:
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*left = 224;
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*print_dots = 96;
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*right = 240;
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return LIBPTOUCH_OK;
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case 0x0C:
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*left = 206;
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*print_dots = 132;
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*right = 222;
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return LIBPTOUCH_OK;
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case 0x12:
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*left = 166;
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*print_dots = 212;
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*right = 182;
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return LIBPTOUCH_OK;
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case 0x18:
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*left = 144;
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*print_dots = 256;
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*right = 160;
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return LIBPTOUCH_OK;
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default:
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break;
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}
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}
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switch (media_wbyte) {
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case 0x04:
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*left = 248;
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*print_dots = 48;
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*right = 264;
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return LIBPTOUCH_OK;
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case 0x06:
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*left = 240;
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*print_dots = 64;
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*right = 256;
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return LIBPTOUCH_OK;
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case 0x09:
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*left = 219;
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*print_dots = 106;
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*right = 235;
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return LIBPTOUCH_OK;
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case 0x0C:
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*left = 197;
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*print_dots = 150;
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*right = 213;
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return LIBPTOUCH_OK;
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case 0x12:
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*left = 155;
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*print_dots = 234;
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*right = 171;
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return LIBPTOUCH_OK;
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case 0x18:
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*left = 112;
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*print_dots = 320;
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*right = 128;
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return LIBPTOUCH_OK;
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case 0x24:
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*left = 45;
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*print_dots = 454;
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*right = 61;
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return LIBPTOUCH_OK;
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default:
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break;
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}
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(void)media_kind;
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return LIBPTOUCH_ERR_UNSUPPORTED;
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}
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/* cv_ptp900_jpn_raster_102.pdf: 2.3.5 ラスターライン（全 560 ドット = 70 バイト） */
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static void pack_line_560(uint8_t line[70], const uint8_t *row, uint32_t width_dots,
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uint16_t left_dots, uint16_t print_dots)
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{
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memset(line, 0, 70u);
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if (width_dots > (uint32_t)print_dots)
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return;
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uint32_t start = (uint32_t)left_dots +
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((uint32_t)print_dots - width_dots) / 2u;
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for (uint32_t x = 0; x < width_dots; x++) {
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uint32_t ubyte = x / 8u;
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uint32_t ubit = 7u - (x % 8u);
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if (((row[ubyte] >> ubit) & 1u) == 0)
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continue;
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uint32_t dot = start + x;
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if (dot >= 560u)
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break;
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uint32_t b = dot / 8u;
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uint32_t bi = 7u - (dot % 8u);
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line[b] |= (uint8_t)(1u << bi);
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}
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}
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static uint8_t *transpose_raster_alloc(const uint8_t *in, uint32_t W, uint32_t H,
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uint32_t *outW, uint32_t *outH)
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{
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*outW = H;
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*outH = W;
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size_t old_rb = (W + 7u) / 8u;
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size_t new_rb = (H + 7u) / 8u;
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uint8_t *out = (uint8_t *)calloc(new_rb * W, 1);
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if (!out)
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return NULL;
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for (uint32_t y = 0; y < H; y++) {
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for (uint32_t x = 0; x < W; x++) {
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size_t ob = (size_t)y * old_rb + x / 8u;
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int bit = (int)((in[ob] >> (7u - x % 8u)) & 1u);
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if (!bit)
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continue;
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uint32_t nx = y;
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uint32_t ny = x;
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size_t nb = (size_t)ny * new_rb + nx / 8u;
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out[nb] |= (uint8_t)(1u << (7u - nx % 8u));
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}
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}
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return out;
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}
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libptouch_err_t libptouch_print_raster(libptouch_ctx *ctx,
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const uint8_t *data, size_t data_len,
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const libptouch_raster_params_t *params)
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{
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libptouch_err_t v =
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libptouch_check_raster(ctx, data, data_len, params);
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if (v != LIBPTOUCH_OK)
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return v;
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if (!ctx->usb_open || !ctx->bulk_out_ep) {
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ptouch_set_error(ctx, LIBPTOUCH_ERR_IO, "not connected");
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return LIBPTOUCH_ERR_IO;
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}
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uint8_t st[LIBPTOUCH_STATUS_LENGTH];
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v = libptouch_get_status(ctx, st);
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if (v != LIBPTOUCH_OK)
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return v;
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uint8_t media_kind = st[11];
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uint8_t media_w = st[10];
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uint16_t left_dots, print_dots, right_dots;
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v = layout_from_status(media_kind, media_w, &left_dots, &print_dots,
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&right_dots);
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if (v != LIBPTOUCH_OK) {
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ptouch_set_error(ctx, LIBPTOUCH_ERR_UNSUPPORTED,
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"tape width/layout not supported for this media "
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"(check status media bytes)");
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return LIBPTOUCH_ERR_UNSUPPORTED;
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}
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(void)right_dots;
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uint32_t wd = params->width_dots;
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uint32_t ht = params->height_dots;
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uint8_t *transposed = transpose_raster_alloc(data, wd, ht, &wd, &ht);
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if (!transposed) {
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ptouch_set_error(ctx, LIBPTOUCH_ERR_NOMEM,
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"transpose raster: out of memory");
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return LIBPTOUCH_ERR_NOMEM;
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}
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const uint8_t *src = transposed;
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if (wd > (uint32_t)print_dots) {
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char buf[160];
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snprintf(buf, sizeof(buf),
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"image width %u dots > printable %u for loaded tape",
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(unsigned)wd, (unsigned)print_dots);
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ptouch_set_error(ctx, LIBPTOUCH_ERR_ARG, buf);
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free(transposed);
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return LIBPTOUCH_ERR_ARG;
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}
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unsigned margin_dots = 14u;
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if (params->margin_mm > 0) {
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margin_dots = (unsigned)((double)params->margin_mm * 360.0 /
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25.4 +
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0.5);
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if (margin_dots < 14u)
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margin_dots = 14u;
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if (margin_dots > 1800u)
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margin_dots = 1800u;
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}
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uint32_t lines = ht;
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uint8_t n5 = (uint8_t)(lines & 0xFFu);
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uint8_t n6 = (uint8_t)((lines >> 8) & 0xFFu);
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uint8_t n7 = (uint8_t)((lines >> 16) & 0xFFu);
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uint8_t n8 = (uint8_t)((lines >> 24) & 0xFFu);
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uint8_t n2_paper = 0x09u;
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if (media_kind == 0x03u)
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n2_paper = 0x00u;
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else if (media_kind == 0x11u)
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n2_paper = 0x11u;
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else if (media_kind == 0x17u)
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n2_paper = 0x17u;
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else if (media_kind == 0x13u)
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n2_paper = 0x13u;
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uint8_t head[256];
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size_t pos = 0;
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memset(head + pos, 0, 200);
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pos += 200u;
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static const uint8_t esc_at[] = { 0x1B, 0x40 };
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memcpy(head + pos, esc_at, sizeof(esc_at));
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pos += sizeof(esc_at);
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static const uint8_t raster_mode[] = { 0x1B, 0x69, 0x61, 0x01 };
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memcpy(head + pos, raster_mode, sizeof(raster_mode));
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pos += sizeof(raster_mode);
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uint8_t esc_iz[] = { 0x1B, 0x69, 0x7A, 0x0Eu, n2_paper, media_w,
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0x00u, n5, n6, n7, n8, 0x02u, 0x00u };
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memcpy(head + pos, esc_iz, sizeof(esc_iz));
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pos += sizeof(esc_iz);
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static const uint8_t esc_im[] = { 0x1B, 0x69, 0x4D, 0x40 };
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memcpy(head + pos, esc_im, sizeof(esc_im));
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pos += sizeof(esc_im);
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static const uint8_t esc_ia[] = { 0x1B, 0x69, 0x41, 0x01 };
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memcpy(head + pos, esc_ia, sizeof(esc_ia));
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pos += sizeof(esc_ia);
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static const uint8_t esc_ik[] = { 0x1B, 0x69, 0x4B, 0x0C };
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memcpy(head + pos, esc_ik, sizeof(esc_ik));
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pos += sizeof(esc_ik);
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uint8_t esc_id[] = {
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0x1B, 0x69, 0x64,
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(uint8_t)(margin_dots & 0xFFu),
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(uint8_t)((margin_dots >> 8) & 0xFFu)
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};
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memcpy(head + pos, esc_id, sizeof(esc_id));
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pos += sizeof(esc_id);
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static const uint8_t mode_m[] = { 0x4D, 0x00 };
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memcpy(head + pos, mode_m, sizeof(mode_m));
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pos += sizeof(mode_m);
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v = ptouch_bulk_send_job(ctx, head, pos, "print preamble");
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if (v != LIBPTOUCH_OK) {
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free(transposed);
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return v;
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}
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size_t row_b = ((size_t)wd + 7u) / 8u;
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uint8_t gbuf[73];
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static const uint8_t g_hdr[] = { 0x47, 0x46, 0x00 };
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for (uint32_t y = 0; y < lines; y++) {
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const uint8_t *row = src + (size_t)y * row_b;
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pack_line_560(gbuf + 3, row, wd, left_dots, print_dots);
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memcpy(gbuf, g_hdr, sizeof(g_hdr));
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v = ptouch_bulk_send_job(ctx, gbuf, sizeof(gbuf), "raster line");
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if (v != LIBPTOUCH_OK) {
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free(transposed);
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return v;
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}
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}
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static const uint8_t print_end[] = { 0x1A };
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v = ptouch_bulk_send_job(ctx, print_end, sizeof(print_end), "print end");
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if (v != LIBPTOUCH_OK) {
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free(transposed);
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return v;
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}
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uint8_t sink[64];
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int tr = 0;
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(void)libusb_bulk_transfer(ctx->usb_handle, ctx->bulk_in_ep, sink,
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(int)sizeof(sink), &tr, 3000);
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(void)tr;
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free(transposed);
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ptouch_set_error(ctx, LIBPTOUCH_OK, "");
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return LIBPTOUCH_OK;
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}
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