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Add RGB color definition

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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 2013-07-19 20:34:36 +02:00
parent 33ad83d492
commit 8dde8cde41
1 changed files with 85 additions and 34 deletions
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119
st.c
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@ -77,6 +77,13 @@ char *argv0;
#define IS_SET(flag) ((term.mode & (flag)) != 0)
#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
#define IS_TRUECOL(x) (1 << 24 & (x))
#define TRUERED(x) (((x) & 0xff0000) >> 8)
#define TRUEGREEN(x) (((x) & 0xff00))
#define TRUEBLUE(x) (((x) & 0xff) << 8)
#define VT102ID "\033[?6c"
enum glyph_attribute {
@ -158,8 +165,8 @@ typedef unsigned short ushort;
typedef struct {
char c[UTF_SIZ]; /* character code */
uchar mode; /* attribute flags */
ushort fg; /* foreground */
ushort bg; /* background */
ulong fg; /* foreground */
ulong bg; /* background */
} Glyph;
typedef Glyph *Line;
@ -354,7 +361,7 @@ static void tsetdirtattr(int);
static void tsetmode(bool, bool, int *, int);
static void tfulldirt(void);
static void techo(char *, int);
static ulong tdefcolor(int *, int *, int);
static inline bool match(uint, uint);
static void ttynew(void);
static void ttyread(void);
@ -1618,9 +1625,58 @@ tdeleteline(int n) {
tscrollup(term.c.y, n);
}
ulong
tdefcolor(int *attr, int *npar, int l) {
long idx = -1;
uint r, g, b;
switch (attr[*npar + 1]) {
case 2: /* direct colour in RGB space */
if (*npar + 4 >= l) {
fprintf(stderr,
"erresc(38): Incorrect number of parameters (%d)\n",
*npar);
break;
}
r = attr[*npar + 2];
g = attr[*npar + 3];
b = attr[*npar + 4];
*npar += 4;
if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
r, g, b);
else
idx = TRUECOLOR(r, g, b);
break;
case 5: /* indexed colour */
if (*npar + 2 >= l) {
fprintf(stderr,
"erresc(38): Incorrect number of parameters (%d)\n",
*npar);
break;
}
*npar += 2;
if(!BETWEEN(attr[*npar], 0, 255))
fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
else
idx = attr[*npar];
break;
case 0: /* implemented defined (only foreground) */
case 1: /* transparent */
case 3: /* direct colour in CMY space */
case 4: /* direct colour in CMYK space */
default:
fprintf(stderr,
"erresc(38): gfx attr %d unknown\n", attr[*npar]);
}
return idx;
}
void
tsetattr(int *attr, int l) {
int i;
ulong idx;
for(i = 0; i < l; i++) {
switch(attr[i]) {
@ -1665,39 +1721,15 @@ tsetattr(int *attr, int l) {
term.c.attr.mode &= ~ATTR_REVERSE;
break;
case 38:
if(i + 2 < l && attr[i + 1] == 5) {
i += 2;
if(BETWEEN(attr[i], 0, 255)) {
term.c.attr.fg = attr[i];
} else {
fprintf(stderr,
"erresc: bad fgcolor %d\n",
attr[i]);
}
} else {
fprintf(stderr,
"erresc(38): gfx attr %d unknown\n",
attr[i]);
}
if ((idx = tdefcolor(attr, &i, l)) >= 0)
term.c.attr.fg = idx;
break;
case 39:
term.c.attr.fg = defaultfg;
break;
case 48:
if(i + 2 < l && attr[i + 1] == 5) {
i += 2;
if(BETWEEN(attr[i], 0, 255)) {
term.c.attr.bg = attr[i];
} else {
fprintf(stderr,
"erresc: bad bgcolor %d\n",
attr[i]);
}
} else {
fprintf(stderr,
"erresc(48): gfx attr %d unknown\n",
attr[i]);
}
if ((idx = tdefcolor(attr, &i, l)) >= 0)
term.c.attr.bg = idx;
break;
case 49:
term.c.attr.bg = defaultbg;
@ -2916,7 +2948,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
FcPattern *fcpattern, *fontpattern;
FcFontSet *fcsets[] = { NULL };
FcCharSet *fccharset;
Colour *fg, *bg, *temp, revfg, revbg;
Colour *fg, *bg, *temp, revfg, revbg, truefg, truebg;
XRenderColor colfg, colbg;
Rectangle r;
@ -2936,8 +2968,27 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
if(base.fg == defaultfg)
base.fg = defaultunderline;
}
fg = &dc.col[base.fg];
bg = &dc.col[base.bg];
if(IS_TRUECOL(base.fg)) {
colfg.red = TRUERED(base.fg);
colfg.green = TRUEGREEN(base.fg);
colfg.blue = TRUEBLUE(base.fg);
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
fg = &truefg;
} else {
fg = &dc.col[base.fg];
}
if(IS_TRUECOL(base.bg)) {
colbg.green = TRUEGREEN(base.bg);
colbg.red = TRUERED(base.bg);
colbg.blue = TRUEBLUE(base.bg);
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
bg = &truebg;
} else {
bg = &dc.col[base.bg];
}
if(base.mode & ATTR_BOLD) {
if(BETWEEN(base.fg, 0, 7)) {