235 lines
6.1 KiB
C
235 lines
6.1 KiB
C
/* $NetBSD: rasops_putchar.h,v 1.8 2019/08/10 01:24:17 rin Exp $ */
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/* NetBSD: rasops8.c,v 1.41 2019/07/25 03:02:44 rin Exp */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#if RASOPS_DEPTH != 8 && RASOPS_DEPTH != 15 && RASOPS_DEPTH != 24 && \
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RASOPS_DEPTH != 32
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#error "Depth not supported"
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#endif
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#if RASOPS_DEPTH == 8
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#define COLOR_TYPE uint8_t
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#elif RASOPS_DEPTH == 15
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#define COLOR_TYPE uint16_t
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#else
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#define COLOR_TYPE uint32_t
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#endif
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#if RASOPS_DEPTH != 24
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#define PIXEL_TYPE COLOR_TYPE
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#define PIXEL_BYTES sizeof(PIXEL_TYPE)
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#define SET_COLOR(p, index) *(p)++ = clr[index]
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#define SET_RGB(p, r, g, b) \
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*(p)++ = (((r) >> (8 - ri->ri_rnum)) << ri->ri_rpos) | \
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(((g) >> (8 - ri->ri_gnum)) << ri->ri_gpos) | \
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(((b) >> (8 - ri->ri_bnum)) << ri->ri_bpos)
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#endif
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#if RASOPS_DEPTH == 24
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#define PIXEL_TYPE uint8_t
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#define PIXEL_BYTES 3
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#define SET_COLOR(p, index) \
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do { \
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COLOR_TYPE c = clr[index]; \
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*(p)++ = c >> 16; \
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*(p)++ = c >> 8; \
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*(p)++ = c; \
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} while (0 /* CONSTCOND */)
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#define SET_RGB(p, r, g, b) \
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do { \
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(p)[R_OFF] = (r); \
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(p)[G_OFF] = (g); \
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(p)[B_OFF] = (b); \
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(p) += 3; \
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} while (0 /* CONSTCOND */)
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#endif
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#define AV(p, w) (((w) * (p)[1] + (0xff - (w)) * (p)[0]) >> 8)
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#if BYTE_ORDER == LITTLE_ENDIAN
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#define R_OFF (ri->ri_rpos / 8)
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#define G_OFF (ri->ri_gpos / 8)
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#define B_OFF (ri->ri_bpos / 8)
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#else /* BIG_ENDIAN XXX not tested */
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#define R_OFF (2 - ri->ri_rpos / 8)
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#define G_OFF (2 - ri->ri_gpos / 8)
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#define B_OFF (2 - ri->ri_bpos / 8)
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#endif
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#define NAME(depth) NAME1(depth)
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#ifndef RASOPS_AA
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#define NAME1(depth) rasops ## depth ## _putchar
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#else
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#define NAME1(depth) rasops ## depth ## _putchar_aa
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#endif
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/*
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* Put a single character.
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*/
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static void
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NAME(RASOPS_DEPTH)(void *cookie, int row, int col, u_int uc, long attr)
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{
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struct rasops_info *ri = (struct rasops_info *)cookie;
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struct wsdisplay_font *font = PICK_FONT(ri, uc);
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int height, width, cnt;
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uint8_t *fr;
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COLOR_TYPE clr[2];
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PIXEL_TYPE *dp, *rp, *hp;
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hp = NULL; /* XXX GCC */
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if (__predict_false(!CHAR_IN_FONT(uc, font)))
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return;
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#ifdef RASOPS_CLIPPING
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/* Catches 'row < 0' case too */
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if ((unsigned)row >= (unsigned)ri->ri_rows)
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return;
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if ((unsigned)col >= (unsigned)ri->ri_cols)
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return;
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#endif
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height = font->fontheight;
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width = font->fontwidth;
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rp = (PIXEL_TYPE *)(ri->ri_bits + FBOFFSET(ri, row, col));
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if (ri->ri_hwbits)
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hp = (PIXEL_TYPE *)(ri->ri_hwbits + FBOFFSET(ri, row, col));
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clr[0] = (COLOR_TYPE)ATTR_BG(ri, attr);
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clr[1] = (COLOR_TYPE)ATTR_FG(ri, attr);
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if (uc == ' ') {
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while (height--) {
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dp = rp;
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for (cnt = width; cnt; cnt--)
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SET_COLOR(dp, 0);
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if (ri->ri_hwbits) {
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uint16_t bytes = width * PIXEL_BYTES;
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/* XXX GCC */
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memcpy(hp, rp, bytes);
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DELTA(hp, ri->ri_stride, PIXEL_TYPE *);
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}
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DELTA(rp, ri->ri_stride, PIXEL_TYPE *);
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}
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} else {
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fr = FONT_GLYPH(uc, font, ri);
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#ifdef RASOPS_AA
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int off[2];
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uint8_t r[2], g[2], b[2];
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/*
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* This is independent to positions/lengths of RGB in pixel.
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*/
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off[0] = (((uint32_t)attr >> 16) & 0xf) * 3;
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off[1] = (((uint32_t)attr >> 24) & 0xf) * 3;
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r[0] = rasops_cmap[off[0]];
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r[1] = rasops_cmap[off[1]];
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g[0] = rasops_cmap[off[0] + 1];
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g[1] = rasops_cmap[off[1] + 1];
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b[0] = rasops_cmap[off[0] + 2];
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b[1] = rasops_cmap[off[1] + 2];
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#endif
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while (height--) {
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dp = rp;
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#ifndef RASOPS_AA
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uint32_t fb = rasops_be32uatoh(fr);
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fr += ri->ri_font->stride;
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for (cnt = width; cnt; cnt--) {
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SET_COLOR(dp, (fb >> 31) & 1);
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fb <<= 1;
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}
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#else /* RASOPS_AA */
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for (cnt = width; cnt; cnt--) {
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int w = *fr++;
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if (w == 0xff)
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SET_COLOR(dp, 1);
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else if (w == 0)
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SET_COLOR(dp, 0);
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else
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SET_RGB(dp,
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AV(r, w), AV(g, w), AV(b, w));
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}
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#endif
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if (ri->ri_hwbits) {
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uint16_t bytes = width * PIXEL_BYTES;
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/* XXX GCC */
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memcpy(hp, rp, bytes);
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DELTA(hp, ri->ri_stride, PIXEL_TYPE *);
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}
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DELTA(rp, ri->ri_stride, PIXEL_TYPE *);
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}
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}
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/* Do underline */
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if ((attr & WSATTR_UNDERLINE) != 0) {
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DELTA(rp, - ri->ri_stride * ri->ri_ul.off, PIXEL_TYPE *);
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if (ri->ri_hwbits)
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DELTA(hp, - ri->ri_stride * ri->ri_ul.off,
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PIXEL_TYPE *);
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for (height = ri->ri_ul.height; height; height--) {
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DELTA(rp, - ri->ri_stride, PIXEL_TYPE *);
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dp = rp;
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for (cnt = width; cnt; cnt--)
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SET_COLOR(dp, 1);
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if (ri->ri_hwbits) {
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DELTA(hp, - ri->ri_stride, PIXEL_TYPE *);
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uint16_t bytes = width * PIXEL_BYTES;
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/* XXX GCC */
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memcpy(hp, rp, bytes);
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}
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}
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}
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}
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#undef COLOR_TYPE
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#undef PIXEL_TYPE
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#undef PIXEL_BYTES
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#undef SET_COLOR
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#undef SET_RGB
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#undef AV
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#undef R_OFF
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#undef G_OFF
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#undef B_OFF
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#undef NAME
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#undef NAME1
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