/* $OpenBSD: rasops8.c,v 1.9 2009/09/05 14:09:35 miod Exp $ */ /* $NetBSD: rasops8.c,v 1.8 2000/04/12 14:22:29 pk Exp $ */ /*- * Copyright (c) 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Andrew Doran. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include int rasops8_putchar(void *, int, int, u_int, long attr); #ifndef RASOPS_SMALL int rasops8_putchar8(void *, int, int, u_int, long attr); int rasops8_putchar12(void *, int, int, u_int, long attr); int rasops8_putchar16(void *, int, int, u_int, long attr); void rasops8_makestamp(struct rasops_info *ri, long); /* * 4x1 stamp for optimized character blitting */ static int32_t stamp[16]; static long stamp_attr; static int stamp_mutex; /* XXX see note in README */ #endif /* * XXX this confuses the hell out of gcc2 (not egcs) which always insists * that the shift count is negative. * * offset = STAMP_SHIFT(fontbits, nibble #) & STAMP_MASK * destination = STAMP_READ(offset) */ #define STAMP_SHIFT(fb,n) ((n*4-2) >= 0 ? (fb)>>(n*4-2):(fb)<<-(n*4-2)) #define STAMP_MASK (0xf << 2) #define STAMP_READ(o) (*(int32_t *)((caddr_t)stamp + (o))) /* * Initialize a 'rasops_info' descriptor for this depth. */ void rasops8_init(ri) struct rasops_info *ri; { switch (ri->ri_font->fontwidth) { #ifndef RASOPS_SMALL case 8: ri->ri_ops.putchar = rasops8_putchar8; break; case 12: ri->ri_ops.putchar = rasops8_putchar12; break; case 16: ri->ri_ops.putchar = rasops8_putchar16; break; #endif /* !RASOPS_SMALL */ default: ri->ri_ops.putchar = rasops8_putchar; break; } } /* * Put a single character. */ int rasops8_putchar(cookie, row, col, uc, attr) void *cookie; int row, col; u_int uc; long attr; { int width, height, cnt, fs, fb; u_char *dp, *rp, *fr, clr[2]; struct rasops_info *ri; ri = (struct rasops_info *)cookie; #ifdef RASOPS_CLIPPING /* Catches 'row < 0' case too */ if ((unsigned)row >= (unsigned)ri->ri_rows) return 0; if ((unsigned)col >= (unsigned)ri->ri_cols) return 0; #endif rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; height = ri->ri_font->fontheight; width = ri->ri_font->fontwidth; clr[0] = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; clr[1] = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; if (uc == ' ') { u_char c = clr[0]; while (height--) { dp = rp; rp += ri->ri_stride; for (cnt = width; cnt; cnt--) *dp++ = c; } } else { uc -= ri->ri_font->firstchar; fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; fs = ri->ri_font->stride; while (height--) { dp = rp; fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) | (fr[0] << 24); fr += fs; rp += ri->ri_stride; for (cnt = width; cnt; cnt--) { *dp++ = clr[(fb >> 31) & 1]; fb <<= 1; } } } /* Do underline */ if ((attr & 1) != 0) { u_char c = clr[1]; rp -= (ri->ri_stride << 1); while (width--) *rp++ = c; } return 0; } #ifndef RASOPS_SMALL /* * Recompute the 4x1 blitting stamp. */ void rasops8_makestamp(ri, attr) struct rasops_info *ri; long attr; { int32_t fg, bg; int i; fg = ri->ri_devcmap[(attr >> 24) & 0xf] & 0xff; bg = ri->ri_devcmap[(attr >> 16) & 0xf] & 0xff; stamp_attr = attr; for (i = 0; i < 16; i++) { #if BYTE_ORDER == LITTLE_ENDIAN stamp[i] = (i & 8 ? fg : bg); stamp[i] |= ((i & 4 ? fg : bg) << 8); stamp[i] |= ((i & 2 ? fg : bg) << 16); stamp[i] |= ((i & 1 ? fg : bg) << 24); #else stamp[i] = (i & 1 ? fg : bg); stamp[i] |= ((i & 2 ? fg : bg) << 8); stamp[i] |= ((i & 4 ? fg : bg) << 16); stamp[i] |= ((i & 8 ? fg : bg) << 24); #endif #if NRASOPS_BSWAP > 0 if (ri->ri_flg & RI_BSWAP) stamp[i] = swap32(stamp[i]); #endif } } /* * Put a single character. This is for 8-pixel wide fonts. */ int rasops8_putchar8(cookie, row, col, uc, attr) void *cookie; int row, col; u_int uc; long attr; { struct rasops_info *ri; int height, fs; int32_t *rp; u_char *fr; /* Can't risk remaking the stamp if it's already in use */ if (stamp_mutex++) { stamp_mutex--; return rasops8_putchar(cookie, row, col, uc, attr); } ri = (struct rasops_info *)cookie; #ifdef RASOPS_CLIPPING if ((unsigned)row >= (unsigned)ri->ri_rows) { stamp_mutex--; return 0; } if ((unsigned)col >= (unsigned)ri->ri_cols) { stamp_mutex--; return 0; } #endif /* Recompute stamp? */ if (attr != stamp_attr) rasops8_makestamp(ri, attr); rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); height = ri->ri_font->fontheight; if (uc == ' ') { while (height--) { rp[0] = rp[1] = stamp[0]; DELTA(rp, ri->ri_stride, int32_t *); } } else { uc -= ri->ri_font->firstchar; fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; fs = ri->ri_font->stride; while (height--) { rp[0] = STAMP_READ(STAMP_SHIFT(fr[0], 1) & STAMP_MASK); rp[1] = STAMP_READ(STAMP_SHIFT(fr[0], 0) & STAMP_MASK); fr += fs; DELTA(rp, ri->ri_stride, int32_t *); } } /* Do underline */ if ((attr & 1) != 0) { DELTA(rp, -(ri->ri_stride << 1), int32_t *); rp[0] = rp[1] = stamp[15]; } stamp_mutex--; return 0; } /* * Put a single character. This is for 12-pixel wide fonts. */ int rasops8_putchar12(cookie, row, col, uc, attr) void *cookie; int row, col; u_int uc; long attr; { struct rasops_info *ri; int height, fs; int32_t *rp; u_char *fr; /* Can't risk remaking the stamp if it's already in use */ if (stamp_mutex++) { stamp_mutex--; return rasops8_putchar(cookie, row, col, uc, attr); } ri = (struct rasops_info *)cookie; #ifdef RASOPS_CLIPPING if ((unsigned)row >= (unsigned)ri->ri_rows) { stamp_mutex--; return 0; } if ((unsigned)col >= (unsigned)ri->ri_cols) { stamp_mutex--; return 0; } #endif /* Recompute stamp? */ if (attr != stamp_attr) rasops8_makestamp(ri, attr); rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); height = ri->ri_font->fontheight; if (uc == ' ') { while (height--) { int32_t c = stamp[0]; rp[0] = rp[1] = rp[2] = c; DELTA(rp, ri->ri_stride, int32_t *); } } else { uc -= ri->ri_font->firstchar; fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; fs = ri->ri_font->stride; while (height--) { rp[0] = STAMP_READ(STAMP_SHIFT(fr[0], 1) & STAMP_MASK); rp[1] = STAMP_READ(STAMP_SHIFT(fr[0], 0) & STAMP_MASK); rp[2] = STAMP_READ(STAMP_SHIFT(fr[1], 1) & STAMP_MASK); fr += fs; DELTA(rp, ri->ri_stride, int32_t *); } } /* Do underline */ if ((attr & 1) != 0) { DELTA(rp, -(ri->ri_stride << 1), int32_t *); rp[0] = rp[1] = rp[2] = stamp[15]; } stamp_mutex--; return 0; } /* * Put a single character. This is for 16-pixel wide fonts. */ int rasops8_putchar16(cookie, row, col, uc, attr) void *cookie; int row, col; u_int uc; long attr; { struct rasops_info *ri; int height, fs; int32_t *rp; u_char *fr; /* Can't risk remaking the stamp if it's already in use */ if (stamp_mutex++) { stamp_mutex--; return rasops8_putchar(cookie, row, col, uc, attr); } ri = (struct rasops_info *)cookie; #ifdef RASOPS_CLIPPING if ((unsigned)row >= (unsigned)ri->ri_rows) { stamp_mutex--; return 0; } if ((unsigned)col >= (unsigned)ri->ri_cols) { stamp_mutex--; return 0; } #endif /* Recompute stamp? */ if (attr != stamp_attr) rasops8_makestamp(ri, attr); rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); height = ri->ri_font->fontheight; if (uc == ' ') { while (height--) rp[0] = rp[1] = rp[2] = rp[3] = stamp[0]; } else { uc -= ri->ri_font->firstchar; fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; fs = ri->ri_font->stride; while (height--) { rp[0] = STAMP_READ(STAMP_SHIFT(fr[0], 1) & STAMP_MASK); rp[1] = STAMP_READ(STAMP_SHIFT(fr[0], 0) & STAMP_MASK); rp[2] = STAMP_READ(STAMP_SHIFT(fr[1], 1) & STAMP_MASK); rp[3] = STAMP_READ(STAMP_SHIFT(fr[1], 0) & STAMP_MASK); fr += fs; DELTA(rp, ri->ri_stride, int32_t *); } } /* Do underline */ if ((attr & 1) != 0) { DELTA(rp, -(ri->ri_stride << 1), int32_t *); rp[0] = rp[1] = rp[2] = rp[3] = stamp[15]; } stamp_mutex--; return 0; } #endif /* !RASOPS_SMALL */