Discretize gradient in ncurses output

cava.c

@@ -542,7 +542,7 @@ as of 0.4.0 all options are specified in config file, see in '/home/username/.co
             // output: start ncurses mode
             case OUTPUT_NCURSES:
                 init_terminal_ncurses(p.color, p.bcolor, p.col, p.bgcol, p.gradient,
-                                      p.gradient_count, p.gradient_colors, &width, &lines);
+                                      p.gradient_count, p.gradient_colors, p.gradient_discrete, &width, &lines);
                 // we have 8 times as much height due to using 1/8 block characters
                 height = lines * 8;
                 break;

config.c

@@ -357,6 +357,7 @@ bool load_colors(struct config_params *p, dictionary *ini, void *err) {
             strdup(iniparser_getstring(ini, "color:gradient_color_7", "#cc5933"));
         p->gradient_colors[7] =
             strdup(iniparser_getstring(ini, "color:gradient_color_8", "#cc3333"));
+        p->gradient_discrete = iniparser_getint(ini, "color:gradient_discrete", 0);
     }
     return true;
 }

config.h

@@ -55,7 +55,7 @@ struct config_params {
     enum input_method im;
     enum output_method om;
     int userEQ_keys, userEQ_enabled, col, bgcol, autobars, stereo, is_bin, ascii_range, bit_format,
-        gradient, gradient_count, fixedbars, framerate, bar_width, bar_spacing, autosens, overshoot,
+        gradient, gradient_count, gradient_discrete, fixedbars, framerate, bar_width, bar_spacing, autosens, overshoot,
         waves, FFTbufferSize, fifoSample, fifoSampleBits;
 };
 

output/terminal_ncurses.c

@@ -67,7 +67,7 @@ static NCURSES_COLOR_T change_color_definition(NCURSES_COLOR_T color_number,
 
 void init_terminal_ncurses(char *const fg_color_string, char *const bg_color_string,
                            int predef_fg_color, int predef_bg_color, int gradient,
-                           int gradient_count, char **gradient_colors, int *width, int *lines) {
+                           int gradient_count, char **gradient_colors, int gradient_discrete,  int *width, int *lines) {
     initscr();
     curs_set(0);
     timeout(0);
@@ -127,8 +127,10 @@ void init_terminal_ncurses(char *const fg_color_string, char *const bg_color_str
             for (int j = 0; j < individual_size; j++) {
 
                 for (int k = 0; k < 3; k++) {
-                    rgb[col + 1][k] = rgb[col][k] + (rgb[col + 2][k] - rgb[col][k]) *
-                                                        (j / (individual_size * 0.85));
+                    if (gradient_discrete)
+                        rgb[col+1][k] = rgb[col][k];
+                    else
+                        rgb[col+1][k] = rgb[col][k] + (rgb[col+2][k] - rgb[col][k]) * (j / (individual_size * 0.85));
                     if (rgb[col + 1][k] > 255)
                         rgb[col][k] = 0;
                     if (j > individual_size * 0.85)
@@ -191,8 +193,8 @@ int draw_terminal_ncurses(int is_tty, int terminal_height, int terminal_width, i
                           int bar_width, int bar_spacing, int rest, const int f[200],
                           int flastd[200], int gradient) {
     const int height = terminal_height - 1;
-    const wchar_t *bar_heights[] = {L"\u2581", L"\u2582", L"\u2583", L"\u2584",
-                                    L"\u2585", L"\u2586", L"\u2587", L"\u2588"};
+    const wchar_t* bar_heights[] = {L"", L"\uE0B8", L"\uE0B9",
+         L"\uE0BA", L"\uE0BB", L"\uE0BC", L"\uE0BD", L"\uE0BE"};
     int num_bar_heights = (sizeof(bar_heights) / sizeof(bar_heights[0]));
 
     // output: check if terminal has been resized

output/terminal_ncurses.h

@@ -1,6 +1,6 @@
 void init_terminal_ncurses(char *const fg_color_string, char *const bg_color_string,
                            int predef_fg_color, int predef_bg_color, int gradient,
-                           int gradient_count, char **gradient_colors, int *width, int *height);
+                           int gradient_count, char **gradient_colors, int gadient_discrete, int *width, int *height);
 void get_terminal_dim_ncurses(int *width, int *height);
 int draw_terminal_ncurses(int is_tty, int terminal_height, int terminal_width, int bars_count,
                           int bar_width, int bar_spacing, int rest, const int f[200],