[src/trunk]: src/sys/dev/rasops Simplify and tiny optimization.

[rin <rin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/b94b4995fb2b
branches:  trunk
changeset: 842967:b94b4995fb2b
user:      rin <rin%NetBSD.org@localhost>
date:      Mon Jul 29 14:59:25 2019 +0000

description:
Simplify and tiny optimization.

diffstat:

 sys/dev/rasops/rasops_putchar_aa.h |  77 ++++++++++++++++++-------------------
 1 files changed, 37 insertions(+), 40 deletions(-)

diffs (139 lines):

diff -r 1907fe359388 -r b94b4995fb2b sys/dev/rasops/rasops_putchar_aa.h
--- a/sys/dev/rasops/rasops_putchar_aa.h        Mon Jul 29 14:43:14 2019 +0000
+++ b/sys/dev/rasops/rasops_putchar_aa.h        Mon Jul 29 14:59:25 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: rasops_putchar_aa.h,v 1.2 2019/07/29 14:06:32 rin Exp $ */
+/* $NetBSD: rasops_putchar_aa.h,v 1.3 2019/07/29 14:59:25 rin Exp $ */
 
 /* NetBSD: rasops8.c,v 1.43 2019/07/28 12:06:10 rin Exp */
 /*-
@@ -51,30 +51,23 @@
 #endif
 
 #if RASOPS_DEPTH != 24
+#define        COLOR_TYPE      PIXEL_TYPE
 #define        PIXEL_LEN       sizeof(PIXEL_TYPE)
 #define        BUF_LEN         MAX_WIDTH
 #define        SET_PIXEL(x, c) buf[x] = clr[c]
-#endif /* RASOPS_DEPTH != 24 */
+#endif
 
 #if RASOPS_DEPTH == 24
+#define        COLOR_TYPE      uint32_t
 #define        PIXEL_LEN       3
 #define        BUF_LEN         (MAX_WIDTH * 3)
-#  if BYTE_ORDER == LITTLE_ENDIAN
-#define        ROFF            (ri->ri_rpos / 8)
-#define        GOFF            (ri->ri_gpos / 8)
-#define        BOFF            (ri->ri_bpos / 8)
-#  else        /* BIG_ENDIAN XXX not tested */
-#define        ROFF            (2 - ri->ri_rpos / 8)
-#define        GOFF            (2 - ri->ri_gpos / 8)
-#define        BOFF            (2 - ri->ri_bpos / 8)
-#  endif
 #define        SET_PIXEL(x, c)                         \
        do {                                    \
-               buf[3 * x + ROFF] = r[c];       \
-               buf[3 * x + GOFF] = g[c];       \
-               buf[3 * x + BOFF] = b[c];       \
+               buf[3 * x + 0] = clr[c] >> 16;  \
+               buf[3 * x + 1] = clr[c] >> 8;   \
+               buf[3 * x + 2] = clr[c];        \
        } while (0 /* CONSTCOND */)
-#endif /* RASOPS_DEPTH == 24 */
+#endif
 
 #if RASOPS_DEPTH != 8
 #define        SET_BUF(c)      for (x = 0; x < width; x++) { SET_PIXEL(x, c); }
@@ -92,9 +85,7 @@
        uint8_t *fr, aval;
        PIXEL_TYPE *rp, *hp, R, G, B;
        PIXEL_TYPE buf[BUF_LEN] __attribute__ ((aligned(8))); /* XXX */
-#if RASOPS_DEPTH != 24
-       PIXEL_TYPE clr[2];
-#endif
+       COLOR_TYPE clr[2];
 
        hp = NULL;      /* XXX GCC */
 
@@ -123,23 +114,8 @@
        if (__predict_false(width > MAX_WIDTH))
                width = MAX_WIDTH;
 
-#if RASOPS_DEPTH != 24
-       clr[0] = (PIXEL_TYPE)ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf];
-       clr[1] = (PIXEL_TYPE)ri->ri_devcmap[((uint32_t)attr >> 24) & 0xf];
-#endif
-
-       /*
-        * This is independent to positions/lengths of RGB in pixel.
-        */
-       off[0] = (((uint32_t)attr >> 16) & 0xf) * 3;
-       off[1] = (((uint32_t)attr >> 24) & 0xf) * 3;
-
-       r[0] = rasops_cmap[off[0]];
-       r[1] = rasops_cmap[off[1]];
-       g[0] = rasops_cmap[off[0] + 1];
-       g[1] = rasops_cmap[off[1] + 1];
-       b[0] = rasops_cmap[off[0] + 2];
-       b[1] = rasops_cmap[off[1] + 2];
+       clr[0] = (COLOR_TYPE)ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf];
+       clr[1] = (COLOR_TYPE)ri->ri_devcmap[((uint32_t)attr >> 24) & 0xf];
 
        if (uc == ' ') {
                SET_BUF(0);
@@ -154,6 +130,19 @@
        } else {
                fr = FONT_GLYPH(uc, font, ri);
 
+               /*
+                * This is independent to positions/lengths of RGB in pixel.
+                */
+               off[0] = (((uint32_t)attr >> 16) & 0xf) * 3;
+               off[1] = (((uint32_t)attr >> 24) & 0xf) * 3;
+
+               r[0] = rasops_cmap[off[0]];
+               r[1] = rasops_cmap[off[1]];
+               g[0] = rasops_cmap[off[0] + 1];
+               g[1] = rasops_cmap[off[1] + 1];
+               b[0] = rasops_cmap[off[0] + 2];
+               b[1] = rasops_cmap[off[1] + 2];
+
                for (y = 0; y < height; y++) {
                        for (x = 0; x < width; x++) {
                                aval = *fr;
@@ -179,9 +168,21 @@
 #endif
 
 #if RASOPS_DEPTH == 24
+#  if BYTE_ORDER == LITTLE_ENDIAN
+#define        ROFF    (ri->ri_rpos / 8)
+#define        GOFF    (ri->ri_gpos / 8)
+#define        BOFF    (ri->ri_bpos / 8)
+#  else        /* BIG_ENDIAN XXX not tested */
+#define        ROFF    (2 - ri->ri_rpos / 8)
+#define        GOFF    (2 - ri->ri_gpos / 8)
+#define        BOFF    (2 - ri->ri_bpos / 8)
+#  endif
                                        buf[3 * x + ROFF] = R;
                                        buf[3 * x + GOFF] = G;
                                        buf[3 * x + BOFF] = B;
+#undef ROFF
+#undef GOFF
+#undef BOFF
 #endif
                                }
                        }
@@ -212,11 +213,7 @@
 #undef MAX_WIDTH
 
 #undef PIXEL_TYPE
+#undef COLOR_TYPE
 #undef PIXEL_LEN
 #undef SET_PIXEL
-
-#undef ROFF
-#undef GOFF
-#undef BOFF
-
 #undef SET_BUF