317 lines
7.7 KiB
C
317 lines
7.7 KiB
C
/*
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* textes en 16x24
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* ---------------
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include "../tthimage.h"
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/*::------------------------------------------------------------------::*/
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typedef struct {
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short flags;
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uint16_t bits[24];
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} Char_16x24;
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/* go, go, go, have a global var */
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/* 14 septembre 2020, make it static */
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static Char_16x24 chars_16x24[256];
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/*::------------------------------------------------------------------::*/
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/*
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il n'y a encore rien dans cette fonction, car je suis en train
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de construire un éditeur de fonte adapté a _mes_ besoins.
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dès qu'il commencera a etre utilisable, et surtout dès que les
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spécifications du format de fichier seront relativement figées,
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je commencerais à coder la chose.
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*/
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/* 15 septembre 2022 : rien n'est fait, c'est un scandale ! */
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int Image_t16x24_binload(char *fontname, uint8_t *zone, int flag)
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{
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fprintf(stderr, "Don't know how to load '%s' in binary mode\n", fontname);
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fprintf(stderr, " address %p flags 0x%x\n", zone, flag);
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return FUNC_NOT_FINISH;
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}
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/*::------------------------------------------------------------------::*/
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/* WARNING: this function is a work in progress */
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int Image_t16x24_txtload(char *fontname, uint8_t *zone, int flags)
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{
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FILE *fp;
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int numchar;
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int foo, x, y, eol, mask;
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char ligne[20+1];
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uint16_t mot;
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fprintf(stderr, ">>> %s ( '%s' %p 0x%x )\n", __func__, fontname, zone, flags);
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if ( NULL == (fp=Image_must_fopen(fontname, "r", 0)) ) {
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fprintf(stderr, "can't open %s\n", fontname);
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return FILE_NOT_FOUND;
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}
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/* 16 juin 2015 : now we can erase the whole font by
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setting bit 0 of flags to one */
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if (flags & 1) {
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fprintf(stderr, "erasing 16x24 font at %p\n", chars_16x24);
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memset(chars_16x24, 0, sizeof(chars_16x24));
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}
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while ( 1 == fscanf(fp, "%d\n", &numchar) ) {
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if ( (numchar<0) || (numchar>255) ) {
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fprintf(stderr, "char %d out of range\n", numchar);
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break;
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}
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "-- char %3d '%c'\n", numchar,
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isprint(numchar) ? numchar : ' ');
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#endif
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for (y=0; y<24; y++) {
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/* lecture d'une ligne d'ascii-pixels */
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memset(ligne, '\0', 20);
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if ( NULL==fgets(ligne, 20, fp) )
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{
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fprintf(stderr, "EOF ?\n");
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}
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foo = strlen(ligne);
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eol = ligne[16];
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if (17!=foo || '\n'!=eol)
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{
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fprintf(stderr, "%s: bad line: %3d %3d %3d\n",
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__func__, y, foo, eol);
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fprintf(stderr, " [%s]\n", ligne);
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abort(); /* very hard, no ? XXX */
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}
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mask = 0x8000;
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mot = 0;
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for (x=0; x<16; x++)
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{
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if (ligne[x]=='*' || ligne[x]=='0')
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{
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mot |= mask;
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#if DEBUG_LEVEL > 1
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putchar('O');
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#endif
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}
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/* ahem, ne serait-il pas bon de filtrer un peu plus les
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* caracteres indesirables ? */
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#if DEBUG_LEVEL > 1
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else
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putchar(' ');
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#endif
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mask >>= 1;
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}
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#if DEBUG_LEVEL > 1
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printf(" | %04x\n", mot);
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#endif
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chars_16x24[numchar].bits[y] = mot;
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}
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/* fin de la boucle sur les caracteres dans le fichier */
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}
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fclose(fp);
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return 0;
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}
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/*::------------------------------------------------------------------::*/
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int Image_t16x24_pltch_exp(Image_Desc *img, int lettre, int xpos, int ypos)
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{
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int x, y;
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uint16_t mask;
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "%s: lettre %3d '%c' %4d %4d\n", __func__, lettre,
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isprint(lettre) ? lettre : ' ', xpos, ypos);
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#endif
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for (x=0; x<16; x++)
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for (y=0; y<24; y++)
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Image_plotRGB(img, x+xpos, y+ypos, 60, 60, 80);
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for (y=0; y<24; y++) {
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mask = 0x8000;
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for (x=0; x<16; x++) {
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if (chars_16x24[lettre].bits[y] & mask) {
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#if DEBUG_LEVEL > 2
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putchar('X');
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#endif
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Image_plotRGB(img, x+xpos, y+ypos, 200, 200, 250);
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}
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#if DEBUG_LEVEL > 2
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else putchar('-');
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#endif
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mask >>= 1;
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}
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#if DEBUG_LEVEL > 2
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putchar('\n');
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#endif
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}
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return FUNC_IS_BETA;
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}
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/*::------------------------------------------------------------------::*/
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int Image_t16x24_pltch_1(Image_Desc *img, int lettre, int xpos, int ypos,
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RGBA *pap, RGBA *ink, int flags)
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{
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int x, y, rs, gs, bs;
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int rp, gp, bp;
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int x2, y2;
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uint16_t mask;
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if (flags) {
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fprintf(stderr, "in %s, useless flags 0x%x is useless\n",
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__func__, flags);
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}
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "%s: ltr %3d '%c' %4d %4d\n", __func__, lettre,
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isprint(lettre) ? lettre : ' ', xpos, ypos);
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#endif
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for (y=0; y<24; y++) {
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mask = 0x8000;
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y2 = y + ypos;
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for (x=0; x<16; x++) {
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x2 = x + xpos;
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Image_getRGB(img, x2, y2, &rs, &gs, &bs);
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if (chars_16x24[lettre].bits[y] & mask) {
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#if DEBUG_LEVEL > 1
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putchar('O');
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#endif
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rp = ((rs*(255-ink->a))+(ink->r*ink->a)) / 255;
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gp = ((gs*(255-ink->a))+(ink->g*ink->a)) / 255;
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bp = ((bs*(255-ink->a))+(ink->b*ink->a)) / 255;
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}
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else {
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#if DEBUG_LEVEL > 1
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putchar('.');
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#endif
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rp = ((rs*(255-pap->a))+(pap->r*pap->a)) / 255;
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gp = ((gs*(255-pap->a))+(pap->g*pap->a)) / 255;
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bp = ((bs*(255-pap->a))+(pap->b*pap->a)) / 255;
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}
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Image_plotRGB(img, x2, y2, rp, gp, bp);
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mask >>= 1;
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} /* finbo x */
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#if DEBUG_LEVEL > 1
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putchar('\n');
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#endif
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} /* finbo y */
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return FUNC_IS_ALPHA;/* BETIC ? */
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}
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/*::------------------------------------------------------------------::*/
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int Image_t16x24_pltstr_1(Image_Desc *img, char *str, int x, int y,
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RGBA *paper, RGBA *ink, int flags)
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{
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int len, foo;
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len = strlen(str);
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#if DEBUG_LEVEL
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fprintf(stderr, "%s: '%s' at %d,%d\n", __func__, str, x, y);
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#endif
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for (foo=0; foo<len; foo++) {
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "%4d %c\n", foo, str[foo]);
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#endif
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Image_t16x24_pltch_1(img, str[foo], x+(foo*16), y, paper, ink, flags);
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}
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return FUNC_IS_BETA;
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}
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/*::------------------------------------------------------------------::*/
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/*::------------------------------------------------------------------::*/
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#define T_ZONE (256*24*2) /* please explain this magic number */
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int Image_t16x24_essai(char *fontname, char *texte, char *tganame)
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{
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Image_Desc *img;
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int foo;
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int ltxt, largeur;
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fprintf(stderr, "*** essai fonte 16x24: %s -> %s\n", fontname, tganame);
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fprintf(stderr, " texte -> '%s'\n", texte);
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foo = Image_t16x24_txtload(fontname, NULL, 0);
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Image_print_error("fonte 16x24, txtload", foo);
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ltxt = strlen(texte);
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largeur = 16 * ltxt;
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img = Image_alloc(largeur, 24, 3);
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if (NULL == img) {
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fprintf(stderr, "no mem in %s\n", __func__);
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abort();
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}
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Image_clear(img, 0, 0, 0);
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for (foo=0; foo<ltxt; foo++) {
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Image_t16x24_pltch_exp(img, texte[foo], foo*16, 0);
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}
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foo = Image_TGA_save(tganame, img, 0);
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Image_DeAllocate(img);
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return FUNC_NOT_FINISH;
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}
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/*::------------------------------------------------------------------::*/
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#define S_X (34)
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#define S_Y (37)
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#define W_IMG (8+(16*S_X))
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#define H_IMG (10+(16*S_Y))
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int Image_t16x24_chars_map(char *fontname, char *tganame, int flag)
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{
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Image_Desc *img;
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int foo, ix, iy, ichar;
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int px, py;
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char chaine[42];
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RGBA paper, ink;
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foo = Image_t16x24_txtload(fontname, NULL, 1);
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Image_print_error("fonte 16x24, txtload", foo);
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img = Image_alloc(W_IMG, H_IMG, 3);
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if (NULL == img) {
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fprintf(stderr, "no mem in %s\n", __func__);
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abort();
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}
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Image_clear(img, 0, 0, 0);
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Image_load_fnt8x8("8x8thin", NULL, 0);
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paper.r = paper.g = paper.b = paper.a = 0;
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ink.r = ink.g = ink.b = 192; ink.a = 255;
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ichar = 0;
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for (ix=0; ix<16; ix++) {
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px = 4 + (ix * S_X);
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for (iy=0; iy<16; iy++) {
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py = 4 + (iy * S_Y);
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Image_t16x24_pltch_exp(img, ichar, px+4, py);
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if (flag & 1)
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sprintf(chaine, "$%02x", ichar);
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else
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sprintf(chaine, "%3d", ichar);
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Image_trace_chaine_1(img, chaine, px, py+25, NULL,
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&paper, &ink);
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ichar ++;
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}
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}
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foo = Image_TGA_save(tganame, img, 0);
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Image_DeAllocate(img); free(img);
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return 42;
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}
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/*::------------------------------------------------------------------::*/
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