Add RGB color definition
This patch uses the bit 24 in the color descriptor as an indicator of RGB color, so we can take the values and generating the XftColour directly in xdraws.
This commit is contained in:
Roberto E. Vargas Caballero
parent
33ad83d492
commit
8dde8cde41
1 changed files with 85 additions and 34 deletions
119
st.c
119
st.c
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@ -77,6 +77,13 @@ char *argv0;
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#define IS_SET(flag) ((term.mode & (flag)) != 0)
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#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
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#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
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#define IS_TRUECOL(x) (1 << 24 & (x))
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#define TRUERED(x) (((x) & 0xff0000) >> 8)
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#define TRUEGREEN(x) (((x) & 0xff00))
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#define TRUEBLUE(x) (((x) & 0xff) << 8)
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#define VT102ID "\033[?6c"
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enum glyph_attribute {
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@ -158,8 +165,8 @@ typedef unsigned short ushort;
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typedef struct {
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char c[UTF_SIZ]; /* character code */
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uchar mode; /* attribute flags */
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ushort fg; /* foreground */
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ushort bg; /* background */
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ulong fg; /* foreground */
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ulong bg; /* background */
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} Glyph;
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typedef Glyph *Line;
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@ -354,7 +361,7 @@ static void tsetdirtattr(int);
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static void tsetmode(bool, bool, int *, int);
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static void tfulldirt(void);
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static void techo(char *, int);
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static ulong tdefcolor(int *, int *, int);
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static inline bool match(uint, uint);
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static void ttynew(void);
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static void ttyread(void);
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@ -1618,9 +1625,58 @@ tdeleteline(int n) {
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tscrollup(term.c.y, n);
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}
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ulong
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tdefcolor(int *attr, int *npar, int l) {
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long idx = -1;
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uint r, g, b;
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switch (attr[*npar + 1]) {
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case 2: /* direct colour in RGB space */
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if (*npar + 4 >= l) {
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fprintf(stderr,
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"erresc(38): Incorrect number of parameters (%d)\n",
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*npar);
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break;
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}
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r = attr[*npar + 2];
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g = attr[*npar + 3];
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b = attr[*npar + 4];
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*npar += 4;
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if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
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fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
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r, g, b);
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else
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idx = TRUECOLOR(r, g, b);
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break;
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case 5: /* indexed colour */
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if (*npar + 2 >= l) {
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fprintf(stderr,
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"erresc(38): Incorrect number of parameters (%d)\n",
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*npar);
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break;
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}
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*npar += 2;
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if(!BETWEEN(attr[*npar], 0, 255))
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fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
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else
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idx = attr[*npar];
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break;
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case 0: /* implemented defined (only foreground) */
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case 1: /* transparent */
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case 3: /* direct colour in CMY space */
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case 4: /* direct colour in CMYK space */
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default:
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fprintf(stderr,
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"erresc(38): gfx attr %d unknown\n", attr[*npar]);
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}
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return idx;
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}
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void
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tsetattr(int *attr, int l) {
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int i;
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ulong idx;
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for(i = 0; i < l; i++) {
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switch(attr[i]) {
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@ -1665,39 +1721,15 @@ tsetattr(int *attr, int l) {
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term.c.attr.mode &= ~ATTR_REVERSE;
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break;
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case 38:
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if(i + 2 < l && attr[i + 1] == 5) {
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i += 2;
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if(BETWEEN(attr[i], 0, 255)) {
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term.c.attr.fg = attr[i];
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} else {
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fprintf(stderr,
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"erresc: bad fgcolor %d\n",
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attr[i]);
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}
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} else {
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fprintf(stderr,
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"erresc(38): gfx attr %d unknown\n",
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attr[i]);
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}
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if ((idx = tdefcolor(attr, &i, l)) >= 0)
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term.c.attr.fg = idx;
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break;
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case 39:
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term.c.attr.fg = defaultfg;
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break;
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case 48:
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if(i + 2 < l && attr[i + 1] == 5) {
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i += 2;
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if(BETWEEN(attr[i], 0, 255)) {
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term.c.attr.bg = attr[i];
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} else {
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fprintf(stderr,
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"erresc: bad bgcolor %d\n",
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attr[i]);
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}
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} else {
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fprintf(stderr,
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"erresc(48): gfx attr %d unknown\n",
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attr[i]);
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}
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if ((idx = tdefcolor(attr, &i, l)) >= 0)
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term.c.attr.bg = idx;
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break;
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case 49:
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term.c.attr.bg = defaultbg;
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@ -2916,7 +2948,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
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FcPattern *fcpattern, *fontpattern;
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FcFontSet *fcsets[] = { NULL };
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FcCharSet *fccharset;
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Colour *fg, *bg, *temp, revfg, revbg;
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Colour *fg, *bg, *temp, revfg, revbg, truefg, truebg;
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XRenderColor colfg, colbg;
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Rectangle r;
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@ -2936,8 +2968,27 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
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if(base.fg == defaultfg)
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base.fg = defaultunderline;
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}
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fg = &dc.col[base.fg];
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bg = &dc.col[base.bg];
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if(IS_TRUECOL(base.fg)) {
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colfg.red = TRUERED(base.fg);
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colfg.green = TRUEGREEN(base.fg);
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colfg.blue = TRUEBLUE(base.fg);
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XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
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fg = &truefg;
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} else {
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fg = &dc.col[base.fg];
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}
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if(IS_TRUECOL(base.bg)) {
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colbg.green = TRUEGREEN(base.bg);
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colbg.red = TRUERED(base.bg);
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colbg.blue = TRUEBLUE(base.bg);
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XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
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bg = &truebg;
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} else {
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bg = &dc.col[base.bg];
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}
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if(base.mode & ATTR_BOLD) {
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if(BETWEEN(base.fg, 0, 7)) {
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