st

fork of suckless's simple terminal
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commit 3544e354b2dcdfcced1a2f4aeedb4d479abd543c
parent cf890e5bf06a65a35fe195aa1ef8ae3e1eb55f51
Author: FRIGN <dev@frign.de>
Date:   Thu, 22 May 2014 15:00:33 +0200

Fix colour-model and simplify xloadcols()

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Diffstat:
Mst.c | 56++++++++++++++++++++------------------------------------
1 file changed, 20 insertions(+), 36 deletions(-)
diff --git a/st.c b/st.c
@@ -340,7 +340,7 @@ typedef struct {
 
 /* Drawing Context */
 typedef struct {
-    Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
+    Colour col[MAX(LEN(colorname), 256)];
     Font font, bfont, ifont, ibfont;
     GC gc;
 } DC;
@@ -2715,7 +2715,7 @@ sixd_to_16bit(int x) {
 
 void
 xloadcols(void) {
-    int i, r, g, b;
+    int i;
     XRenderColor color = { .alpha = 0xffff };
     static bool loaded;
     Colour *cp;
@@ -2725,7 +2725,7 @@ xloadcols(void) {
             XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
     }
 
-    /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
+    /* load colours [0-15] and [256-LEN(colorname)] (config.h) */
     for(i = 0; i < LEN(colorname); i++) {
         if(!colorname[i])
             continue;
@@ -2734,27 +2734,20 @@ xloadcols(void) {
         }
     }
 
-    /* load colors [16-255] ; same colors as xterm */
-    for(i = 16, r = 0; r < 6; r++) {
-        for(g = 0; g < 6; g++) {
-            for(b = 0; b < 6; b++) {
-                color.red = sixd_to_16bit(r);
-                color.green = sixd_to_16bit(g);
-                color.blue = sixd_to_16bit(b);
-                if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i])) {
-                    die("Could not allocate color %d\n", i);
-                }
-                i++;
-            }
-        }
+    /* load colours [16-231] ; same colours as xterm */
+    for(i = 16; i < 6*6*6+16; i++) {
+        color.red   = sixd_to_16bit( ((i-16)/36)%6 );
+        color.green = sixd_to_16bit( ((i-16)/6) %6 );
+        color.blue  = sixd_to_16bit( ((i-16)/1) %6 );
+        if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
+            die("Could not allocate color %d\n", i);
     }
-
-    for(r = 0; r < 24; r++, i++) {
-        color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
-        if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color,
-                    &dc.col[i])) {
+    
+    /* load colours [232-255] ; grayscale */
+    for(; i < 256; i++) {
+        color.red = color.green = color.blue = 0x0808 + 0x0a0a * (i-(6*6*6+16));
+        if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
             die("Could not allocate color %d\n", i);
-        }
     }
     loaded = true;
 }
@@ -3149,22 +3142,13 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
     }
 
     if(base.mode & ATTR_BOLD) {
-        if(BETWEEN(base.fg, 0, 7)) {
-            /* basic system colors */
-            fg = &dc.col[base.fg + 8];
-        } else if(BETWEEN(base.fg, 16, 195)) {
-            /* 256 colors */
-            fg = &dc.col[base.fg + 36];
-        } else if(BETWEEN(base.fg, 232, 251)) {
-            /* greyscale */
-            fg = &dc.col[base.fg + 4];
-        }
         /*
-         * Those ranges will not be brightened:
-         *    8 - 15 – bright system colors
-         *    196 - 231 – highest 256 color cube
-         *    252 - 255 – brightest colors in greyscale
+         * change basic system colours [0-7] 
+         * to bright system colours [8-15]
          */
+        if(BETWEEN(base.fg, 0, 7))
+            fg = &dc.col[base.fg + 8];
+        
         font = &dc.bfont;
         frcflags = FRC_BOLD;
     }