drop textplay PoC

src/poc/textplay.c

@@ -1,231 +0,0 @@
-#include <stdlib.h>
-#include <notcurses/notcurses.h>
-#include "compat/compat.c"
-
-#define GIG 1000000000ull
-static const uint32_t LOWCOLOR = 0x004080;
-static const uint32_t HICOLOR = 0xddffdd;
-static const uint32_t NANOSEC = GIG / 60; // 60 cps
-static const int FRAMERATIO = 2; // display 1 of every FRAMERATIO frames
-#define MARGIN 2
-
-static struct notcurses*
-init(void){
-  struct notcurses_options opts = {
-    //.loglevel = NCLOGLEVEL_DEBUG,
-    .margin_t = MARGIN / 2,
-    .margin_r = MARGIN,
-    .margin_b = MARGIN / 2,
-    .margin_l = MARGIN,
-    .flags = NCOPTION_NO_ALTERNATE_SCREEN |
-             NCOPTION_SUPPRESS_BANNERS,
-  };
-  struct notcurses* nc = notcurses_init(&opts, stdout);
-  return nc;
-}
-
-// normally called with hicolor of HICOLOR, but sometimes we need to dull
-// it out (when we pause, and at the end)
-static int
-colorize(struct ncplane* n, uint32_t hicolor){
-  int y, x;
-  ncplane_cursor_yx(n, &y, &x);
-  uint32_t c = hicolor;
-  ncplane_set_bg_rgb(n, 0x222222);
-  while(y >= 0){
-    while(x >= 0){
-      uint16_t stylemask;
-      uint64_t channels;
-      char* egc = ncplane_at_yx(n, y, x, &stylemask, &channels);
-      if(egc == NULL){
-        return -1;
-      }
-      if(strcmp(egc, "") == 0){
-        free(egc);
-        --x;
-        continue;
-      }
-      ncplane_set_fg_rgb(n, c);
-      if(ncplane_putegc_yx(n, y, x, egc, NULL) < 0){
-        free(egc);
-        return -1;
-      }
-      if(c != LOWCOLOR){
-        unsigned g = (c & 0xff00) >> 8u;
-        --g;
-        // only the leading character gets the bright almost-white
-        c = (c & 0x000080) | (g << 8u);
-      }
-      free(egc);
-      --x;
-    }
-    --y;
-    x = ncplane_dim_x(n) - 1;
-  }
-  return 0;
-}
-
-// whenever the text indicates a lengthy delay, keep the frame rolling...
-static int
-longdelay(struct notcurses* nc, struct ncvisual* ncv, struct ncvisual_options* vopts){
-  struct timespec now;
-  clock_gettime(CLOCK_MONOTONIC, &now);
-  uint64_t nowns, deadlinens;
-  nowns = now.tv_sec * GIG + now.tv_nsec;
-  deadlinens = nowns + 5ull * GIG;
-  do{
-    if(ncv){
-      for(int i = 0 ; i < FRAMERATIO ; ++i){
-        ncvisual_decode(ncv);
-      }
-      if(ncvisual_render(nc, ncv, vopts) == NULL){
-        return -1;
-      }
-      if(notcurses_render(nc)){
-        return -1;
-      }
-    }else{
-      // FIXME clock_nanosleep
-    }
-    clock_gettime(CLOCK_MONOTONIC, &now);
-    nowns = now.tv_sec * GIG + now.tv_nsec;
-  }while(nowns < deadlinens);
-  return 0;
-}
-
-static int
-textplay(struct notcurses* nc, struct ncplane* tplane, struct ncvisual* ncv){
-  char* buf = NULL;
-  size_t buflen = 1;
-  struct ncplane* stdn = notcurses_stdplane(nc);
-  ncplane_set_scrolling(tplane, true);
-  struct ncvisual_options vopts = {
-    .n = ncplane_dup(stdn, NULL),
-    .scaling = NCSCALE_STRETCH,
-    .blitter = NCBLIT_PIXEL,
-  };
-  ncplane_move_below(vopts.n, tplane);
-  wint_t wc;
-  while((wc = getwc(stdin)) != WEOF){
-    if(ncv){
-      if(ncvisual_render(nc, ncv, &vopts) == NULL){
-        return -1;
-      }
-    }
-    ncplane_erase(tplane);
-    char conv[7];
-    mbstate_t mbs = {};
-    size_t w = wcrtomb(conv, wc, &mbs);
-    if(w == (size_t)-1){
-      goto err;
-    }
-    conv[w] = '\0';
-    char* tmp = realloc(buf, buflen + w);
-    if(tmp == NULL){
-      goto err;
-    }
-    buf = tmp;
-    strcpy(buf + buflen - 1, conv);
-    buflen += w;
-    int pt = ncplane_puttext(tplane, 0, NCALIGN_LEFT, buf, NULL);
-    if(pt < 0){
-      goto err;
-    }
-    if(colorize(tplane, HICOLOR)){
-      goto err;
-    }
-    if(notcurses_render(nc)){
-      goto err;
-    }
-    struct timespec ts = {
-      .tv_sec = 0, .tv_nsec = NANOSEC,
-    };
-    if(!ncv){
-      clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL);
-    }else{
-      for(int i = 0 ; i < FRAMERATIO ; ++i){
-        ncvisual_decode(ncv);
-      }
-    }
-    if(wc == L'…'){
-      if(notcurses_render(nc)){
-        goto err;
-      }
-      if(longdelay(nc, ncv, &vopts)){
-        goto err;
-      }
-    }
-  }
-  // dull out the leading character for exit
-  if(colorize(tplane, 0x00ff80)){
-    goto err;
-  }
-  if(notcurses_render(nc)){
-    goto err;
-  }
-  ncplane_destroy(vopts.n);
-  return 0;
-
-err:
-  ncplane_destroy(vopts.n);
-  free(buf);
-  return -1;
-}
-
-static struct ncplane*
-textplane(struct notcurses* nc){
-  int dimy, dimx;
-  struct ncplane* stdn = notcurses_stddim_yx(nc, &dimy, &dimx);
-  struct ncplane_options nopts = {
-    .y = MARGIN * 2 + 2,
-    .x = MARGIN * 4 + 2,
-    .rows = dimy - MARGIN * 4 + 1,
-    .cols = dimx - MARGIN * 8,
-    .name = "text",
-  };
-  struct ncplane* n = ncplane_create(stdn, &nopts);
-  uint64_t channels = NCCHANNELS_INITIALIZER(0, 0, 0, 0x22, 0x22, 0x22);
-  /*ncchannels_set_fg_alpha(&channels, NCALPHA_TRANSPARENT);
-  ncchannels_set_bg_alpha(&channels, NCALPHA_TRANSPARENT);*/
-  if(n){
-    ncplane_set_base(n, "", 0, channels);
-  }
-  return n;
-}
-
-static void
-usage(FILE* fp){
-  fprintf(fp, "usage: textplay [ media ]\n");
-}
-
-int main(int argc, char** argv){
-  const char* media = NULL;
-  if(argc > 3){
-    usage(stderr);
-    return EXIT_FAILURE;
-  }else if(argc == 2){
-    media = argv[1];
-  }
-  struct notcurses* nc = init();
-  if(nc == NULL){
-    return EXIT_FAILURE;
-  }
-  struct ncvisual* ncv = NULL;
-  if(media){
-    if((ncv = ncvisual_from_file(media)) == NULL){
-      notcurses_stop(nc);
-      return EXIT_FAILURE;
-    }
-  }
-  struct ncplane* tplane = textplane(nc);
-  if(tplane == NULL){
-    notcurses_stop(nc);
-    return EXIT_FAILURE;
-  }
-  textplay(nc, tplane, ncv);
-  ncvisual_destroy(ncv);
-  if(notcurses_stop(nc)){
-    return EXIT_FAILURE;
-  }
-  return EXIT_SUCCESS;
-}