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author | jaseg <jaseg@jaseg.net> | 2014-01-03 16:40:44 +0100 |
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committer | jaseg <jaseg@jaseg.net> | 2014-01-03 16:40:44 +0100 |
commit | d27f9ecf7ea92b702df128f856c1063aa91c51f2 (patch) | |
tree | 1dc2b1ff871e28966aceb7a6bf7da8f190a6cd24 /host/matelight/main.c | |
parent | 9ef5c135e894b2da95940e2556f4df9ce2205552 (diff) | |
download | matelight-d27f9ecf7ea92b702df128f856c1063aa91c51f2.tar.gz matelight-d27f9ecf7ea92b702df128f856c1063aa91c51f2.tar.bz2 matelight-d27f9ecf7ea92b702df128f856c1063aa91c51f2.zip |
Maybe gif-lib wasn't too bright an idea...
Diffstat (limited to 'host/matelight/main.c')
-rw-r--r-- | host/matelight/main.c | 357 |
1 files changed, 0 insertions, 357 deletions
diff --git a/host/matelight/main.c b/host/matelight/main.c deleted file mode 100644 index 48532f7..0000000 --- a/host/matelight/main.c +++ /dev/null @@ -1,357 +0,0 @@ - -#include "font.h" -#include "color.h" -#include <stdint.h> -#include <stdlib.h> -#include <stdio.h> -#include <errno.h> -#include <string.h> -#include <wchar.h> -#include <locale.h> -#include <sys/timeb.h> -#include <unistd.h> - -// CAUTION: REQUIRES INPUT TO BE \0-TERMINATED -// ...also, it does a hardcodes setlocale of LC_CTYPE to en_US.utf8 for... reasons. -int console_render(char *s, glyph_t **glyph_table, unsigned int glyph_table_size){ - unsigned int len = strlen(s); - - uint8_t *gbuf = NULL; - unsigned int gbufwidth = 0; - unsigned int gbufheight = 0; - char *p = s; - - // Calculate screen width of string prior to allocating memory for the frame buffer - wchar_t c; - mbstate_t ps = {0}; - memset(&ps, 0, sizeof(mbstate_t)); - if(!setlocale(LC_CTYPE, "en_US.utf8")){ - fprintf(stderr, "Cannot set locale\n"); - goto error; - } - for(;;){ - while(*p == '\033'){ - p++; - // Jump over escape sequences - for(;;p++){ - if(!(*p == ';' || *p == '[' || ('0' <= *p && *p <= '9'))){ - p++; - break; - } - } - memset(&ps, 0, sizeof(mbstate_t)); - } - - size_t inc = mbrtowc(&c, p, MB_CUR_MAX, &ps); // MB_CUR_MAX is safe since p is \0-terminated - if(inc == -1 || inc == -2){ - fprintf(stderr, "Error rendering string: No valid UTF-8 input.\n"); - goto error; - } - if(inc == 0) // Reached end of string - break; - p += inc; - - if(c > glyph_table_size){ - fprintf(stderr, "Error rendering string: Codepoint 0x%lx out of valid range (0-%d).\n", (long int)c, glyph_table_size); - goto error; - } - - glyph_t *g = glyph_table[c]; - if(!g){ - fprintf(stderr, "Error rendering string: Codepoint 0x%lx not in font.\n", (long int)c); - goto error; - } - - if(g->height > gbufheight) - gbufheight = g->height; - - gbufwidth += g->width; - } - // For easier rendering on the terminal, round up to multiples of two - gbufheight += gbufheight&1; - - // gbuf uses 3 bytes per color for r, g and b - unsigned int gbufsize = gbufwidth*3*gbufheight; - gbuf = malloc(gbufsize); - if(gbuf == 0){ - fprintf(stderr, "Cannot malloc() %d bytes.\n", gbufsize); - goto error; - } - memset(gbuf, 0, gbufsize); - - unsigned int x = 0; - p = s; - memset(&ps, 0, sizeof(mbstate_t)); - struct { - color_t fg; - color_t bg; - unsigned int blink:4; - unsigned int bold:1; // TODO - unsigned int underline:1; - unsigned int strikethrough:1; - unsigned int fraktur:1; // TODO See: Flat10 Fraktur font - unsigned int invert:1; - } style = { - colortable[DEFAULT_FG_COLOR], colortable[DEFAULT_BG_COLOR], 0, 0, 0, 0, 0, 0 - }; - // Render glyphs (now with escape sequence rendering!) - for(;;){ - // NOTE: This nested escape sequence parsing does not contain any unicode-awareness whatsoever - if(*p == '\033'){ // Escape sequence YAY - char *sequence_start = ++p; - if(*p == '['){ // This was a CSI! - // Disassemble the list of numbers, only accept SGR sequences (those ending with 'm') - long elems[MAX_CSI_ELEMENTS]; - int nelems; - for(nelems = 0; nelems<MAX_CSI_ELEMENTS; nelems++){ - p++; - char *endptr; - elems[nelems] = strtol(p, &endptr, 10); - if(p == endptr){ - fprintf(stderr, "Invalid escape sequence: \"\\e%s\"\n", sequence_start); - goto error; - } - p = endptr; - if(*endptr == 'm') - break; - if(*endptr != ';'){ - fprintf(stderr, "Invalid escape sequence: \"\\e%s\"\n", sequence_start); - goto error; - } - } - p++; // gobble up trailing 'm' of "\033[23;42m" - nelems++; - // By now we know it's a SGR since we error'ed out on anything else - if(nelems < 1){ - fprintf(stderr, "Unsupported escape sequence: \"\\e%s\"\n", sequence_start); - goto error; - } - // Parse the sequence numbers - for(int i=0; i<nelems; i++){ - switch(elems[i]){ - case 0: // reset style - style.fg = colortable[DEFAULT_FG_COLOR]; - style.bg = colortable[DEFAULT_BG_COLOR]; - style.bold = 0; - style.underline = 0; - style.blink = 0; - style.strikethrough = 0; - style.fraktur = 0; - style.invert = 0; - break; - case 1: // bold - style.bold = 1; - break; - case 4: // underline - style.underline = 1; - break; - case 5: // slow blink - style.blink = 1; - break; - case 6: // rapid blink - style.blink = 8; - break; - case 7: // color invert on - style.invert = 1; - break; - case 9: // strike-through - style.strikethrough = 1; - break; - case 20:// Fraktur - style.fraktur = 1; - break; - case 22:// Bold off - style.bold = 0; - break; - case 24:// Underline off - style.underline = 0; - break; - case 25:// Blink off - style.blink = 0; - break; - case 27:// color invert off - style.invert = 0; - break; - case 29:// strike-through off - style.strikethrough = 0; - break; - case 30: // Set foreground color, "dim" colors - case 31: - case 32: - case 33: - case 34: - case 35: - case 36: - case 37: - style.fg = colortable[elems[i]-30]; - break; - case 38: // Set xterm-256 foreground color - i++; - if(nelems-i < 2 || elems[i] != 5){ - fprintf(stderr, "Invalid ANSI escape code: \"\\e%s\"\n", sequence_start); - goto error; - } - style.fg = colortable[elems[++i]]; - break; - case 39: // Reset foreground color to default - style.bg = colortable[DEFAULT_FG_COLOR]; - break; - case 40: // Set background color, "dim" colors - case 41: - case 42: - case 43: - case 44: - case 45: - case 46: - case 47: - style.bg = colortable[elems[i]-40]; - break; - case 48: // Set xterm-256 background color - i++; - if(nelems-i < 2 || elems[i] != 5){ - fprintf(stderr, "Invalid ANSI escape code: \"\\e%s\"\n", sequence_start); - goto error; - } - style.bg = colortable[elems[++i]]; - break; - case 49: // Reset background color to default - style.bg = colortable[DEFAULT_BG_COLOR]; - break; - case 90: // Set foreground color, "bright" colors - case 91: - case 92: - case 93: - case 94: - case 95: - case 96: - case 97: - style.fg = colortable[elems[i]-90+8]; - break; - case 100: // Set background color, "bright" colors - case 101: - case 102: - case 103: - case 104: - case 105: - case 106: - case 107: - style.bg = colortable[elems[i]-100+8]; - break; - default: - fprintf(stderr, "Unsupported escape sequence: \"\\e%s\"\n", sequence_start); - goto error; - } - } - - }else{ - fprintf(stderr, "Unsupported escape sequence: \"\\e%s\"\n", sequence_start); - goto error; - } - - continue; - } - - size_t inc = mbrtowc(&c, p, (s+len+1)-p, NULL); - // If p contained - if(inc == 0) // Reached end of string - break; - p += inc; - - // Render glyph into frame buffer - struct timeb time = {0}; - ftime(&time); - unsigned long int t = time.time*1000 + time.millitm; - int blink = style.blink && (t % (1000/style.blink) < (333/style.blink)); - int inv = !(style.invert ^ blink); - color_t fg = inv ? style.fg : style.bg; - color_t bg = inv ? style.bg : style.fg; - - glyph_t *g = glyph_table[c]; - render_glyph(g, gbuf, gbufwidth, x, 0, fg, bg); - if(style.strikethrough || style.underline){ - int sty = gbufheight/2; - // g->y usually is a negative index of the glyph's baseline measured from the glyph's bottom - int uly = gbufheight + g->y; - for(int i=0; i<g->width; i++){ - if(style.strikethrough) - *((color_t *)(gbuf + (sty*gbufwidth + x + i)*3)) = fg; - if(style.underline) - *((color_t *)(gbuf + (uly*gbufwidth + x + i)*3)) = fg; - } - } - x += g->width; - } - - // Render framebuffer to terminal, two pixels per character using Unicode box drawing stuff - color_t lastfg = {0, 0, 0}, lastbg = {0, 0, 0}; - printf("\e[38;5;0;48;5;0m"); - for(unsigned int y=0; y < gbufheight; y+=2){ - for(unsigned int x=0; x < gbufwidth; x++){ - // Da magicks: ▀█▄ - color_t ct = *((color_t *)(gbuf + (y*gbufwidth + x)*3)); // Top pixel - color_t cb = *((color_t *)(gbuf + ((y+1)*gbufwidth + x)*3)); // Bottom pixel - // The following, rather convoluted logic tries to "save" escape sequences when rendering. - if(!memcmp(&ct, &lastfg, sizeof(color_t))){ - if(!memcmp(&cb, &lastbg, sizeof(color_t))){ - printf("▀"); - }else if(!memcmp(&cb, &lastfg, sizeof(color_t))){ - printf("█"); - }else{ - printf("\033[48;5;%dm▀", xterm_color_index(cb)); - lastbg = cb; - } - }else if(!memcmp(&ct, &lastbg, sizeof(color_t))){ - if(!memcmp(&cb, &lastfg, sizeof(color_t))){ - printf("▄"); - }else if(!memcmp(&cb, &lastbg, sizeof(color_t))){ - printf(" "); - }else{ - printf("\033[38;5;%dm▄", xterm_color_index(cb)); - lastfg = cb; - } - }else{ // No matches for the upper pixel - if(!memcmp(&cb, &lastfg, sizeof(color_t))){ - printf("\033[48;5;%dm▄", xterm_color_index(ct)); - lastbg = ct; - }else if(!memcmp(&cb, &lastbg, sizeof(color_t))){ - printf("\033[38;5;%dm▀", xterm_color_index(ct)); - lastfg = ct; - }else{ - printf("\033[38;5;%d;48;5;%dm▀", xterm_color_index(ct), xterm_color_index(cb)); - lastfg = ct; - lastbg = cb; - } - } - } - printf("\n"); - } - return 0; -error: - free(gbuf); - return 1; -} - -int main(int argc, char **argv){ - FILE *f = fopen("unifont.bdf", "r"); - if(!f){ - fprintf(stderr, "Error opening font file: %s\n", strerror(errno)); - return 1; - } - glyph_t* glyph_table[BLP_SIZE]; - if(read_bdf(f, glyph_table, BLP_SIZE)){ - fprintf(stderr, "Error reading font file.\n"); - return 1; - } - for(;;){ - printf("\033[2J"); - for(unsigned int i=1; i<argc; i++){ - if(console_render(argv[i], glyph_table, BLP_SIZE)){ - fprintf(stderr, "Error rendering text.\n"); - return 1; - } - printf("\n"); - } - usleep(20000); - } - return 0; -} |