b09e761aad
- Introduce and use proper macros. - Use not ambiguous variable names. - Unify similar functions as possible as I can. - G/C unused headers. - Use #include <dev/rasops/foo.h> instead of "foo.h" No particular functional changes intended.
149 lines
4.0 KiB
C
149 lines
4.0 KiB
C
/* $NetBSD: rasops1_putchar_width.h,v 1.6 2019/08/10 01:24:17 rin Exp $ */
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/* NetBSD: rasops1.c,v 1.28 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_WIDTH != 8 && RASOPS_WIDTH != 16
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#error "Width not supported"
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#endif
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#if RASOPS_WIDTH == 8
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#define SUBST_UNIT uint8_t
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#define GET_GLYPH(fr) (fr)[0]
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#endif
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#if RASOPS_WIDTH == 16
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/*
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* rp and hp are always half-word aligned, whereas
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* fr may not be aligned in half-word boundary.
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*/
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#define SUBST_UNIT uint16_t
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# if BYTE_ORDER == BIG_ENDIAN
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#define GET_GLYPH(fr) ((fr)[0] << 8) | (fr)[1]
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# else
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#define GET_GLYPH(fr) (fr)[0] | ((fr)[1] << 8)
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# endif
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#endif /* RASOPS_WIDTH == 16 */
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#define NAME(width) NAME1(width)
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#define NAME1(width) rasops1_putchar ## width
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/*
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* Width-optimized putchar function.
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*/
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static void
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NAME(RASOPS_WIDTH)(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;
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uint32_t bg, fg;
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uint8_t *fr;
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SUBST_UNIT tmp, *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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rp = (SUBST_UNIT *)(ri->ri_bits + row * ri->ri_yscale +
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col * sizeof(SUBST_UNIT));
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if (ri->ri_hwbits)
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hp = (SUBST_UNIT *)(ri->ri_hwbits + row * ri->ri_yscale +
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col * sizeof(SUBST_UNIT));
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bg = ATTR_BG(ri, attr);
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fg = ATTR_FG(ri, attr);
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/* If fg and bg match this becomes a space character */
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if (uc == ' ' || __predict_false(fg == bg)) {
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while (height--) {
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*rp = bg;
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if (ri->ri_hwbits) {
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*hp = bg;
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DELTA(hp, ri->ri_stride, SUBST_UNIT *);
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}
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DELTA(rp, ri->ri_stride, SUBST_UNIT *);
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}
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} else {
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fr = FONT_GLYPH(uc, font, ri);
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while (height--) {
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tmp = GET_GLYPH(fr);
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fr += font->stride;
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if (bg)
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tmp = ~tmp;
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*rp = tmp;
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if (ri->ri_hwbits) {
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*hp = tmp;
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DELTA(hp, ri->ri_stride, SUBST_UNIT *);
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}
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DELTA(rp, ri->ri_stride, SUBST_UNIT *);
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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, SUBST_UNIT *);
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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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SUBST_UNIT *);
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for (height = ri->ri_ul.height; height; height--) {
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DELTA(rp, - ri->ri_stride, SUBST_UNIT *);
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*rp = fg;
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if (ri->ri_hwbits) {
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DELTA(hp, - ri->ri_stride, SUBST_UNIT *);
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*hp = fg;
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}
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}
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}
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}
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#undef SUBST_UNIT
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#undef GET_GLYPH
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#undef NAME
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#undef NAME1
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