/* $OpenBSD: rasops15.c,v 1.7 2009/09/05 14:09:35 miod Exp $ */ /* $NetBSD: rasops15.c,v 1.7 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 rasops15_putchar(void *, int, int, u_int, long attr); #ifndef RASOPS_SMALL int rasops15_putchar8(void *, int, int, u_int, long attr); int rasops15_putchar12(void *, int, int, u_int, long attr); int rasops15_putchar16(void *, int, int, u_int, long attr); void rasops15_makestamp(struct rasops_info *, long); /* * (2x2)x1 stamp for optimized character blitting */ static int32_t stamp[32]; 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 int32_t[0] = STAMP_READ(offset) * destination int32_t[1] = STAMP_READ(offset + 4) */ #define STAMP_SHIFT(fb,n) ((n*4-3) >= 0 ? (fb)>>(n*4-3):(fb)<<-(n*4-3)) #define STAMP_MASK (15 << 3) #define STAMP_READ(o) (*(int32_t *)((caddr_t)stamp + (o))) /* * Initialize rasops_info struct for this colordepth. */ void rasops15_init(ri) struct rasops_info *ri; { switch (ri->ri_font->fontwidth) { #ifndef RASOPS_SMALL case 8: ri->ri_ops.putchar = rasops15_putchar8; break; case 12: ri->ri_ops.putchar = rasops15_putchar12; break; case 16: ri->ri_ops.putchar = rasops15_putchar16; break; #endif /* !RASOPS_SMALL */ default: ri->ri_ops.putchar = rasops15_putchar; break; } if (ri->ri_rnum == 0) { ri->ri_rnum = 5; ri->ri_rpos = 0; ri->ri_gnum = 5 + (ri->ri_depth == 16); ri->ri_gpos = 5; ri->ri_bnum = 5; ri->ri_bpos = 10 + (ri->ri_depth == 16); } } /* * Paint a single character. */ int rasops15_putchar(cookie, row, col, uc, attr) void *cookie; int row, col; u_int uc; long attr; { int fb, width, height, cnt, clr[2]; struct rasops_info *ri; u_char *dp, *rp, *fr; 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[1] = ri->ri_devcmap[((u_int)attr >> 24) & 0xf]; clr[0] = ri->ri_devcmap[((u_int)attr >> 16) & 0xf]; if (uc == ' ') { int16_t c = (int16_t)clr[0]; while (height--) { dp = rp; rp += ri->ri_stride; for (cnt = width; cnt; cnt--) { *(int16_t *)dp = c; dp += 2; } } } else { uc -= ri->ri_font->firstchar; fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; while (height--) { dp = rp; fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) | (fr[0] << 24); fr += ri->ri_font->stride; rp += ri->ri_stride; for (cnt = width; cnt; cnt--) { *(int16_t *)dp = (int16_t)clr[(fb >> 31) & 1]; fb <<= 1; dp += 2; } } } /* Do underline */ if ((attr & 1) != 0) { int16_t c = (int16_t)clr[1]; rp -= ri->ri_stride << 1; while (width--) { *(int16_t *)rp = c; rp += 2; } } return 0; } #ifndef RASOPS_SMALL /* * Recompute the (2x2)x1 blitting stamp. */ void rasops15_makestamp(ri, attr) struct rasops_info *ri; long attr; { int32_t fg, bg; int i; fg = ri->ri_devcmap[((u_int)attr >> 24) & 0xf] & 0xffff; bg = ri->ri_devcmap[((u_int)attr >> 16) & 0xf] & 0xffff; stamp_attr = attr; for (i = 0; i < 32; i += 2) { #if BYTE_ORDER == LITTLE_ENDIAN stamp[i] = (i & 16 ? fg : bg); stamp[i] |= ((i & 8 ? fg : bg) << 16); stamp[i + 1] = (i & 4 ? fg : bg); stamp[i + 1] |= ((i & 2 ? fg : bg) << 16); #else stamp[i + 1] = (i & 2 ? fg : bg); stamp[i + 1] |= ((i & 4 ? fg : bg) << 16); stamp[i] = (i & 8 ? fg : bg); stamp[i] |= ((i & 16 ? fg : bg) << 16); #endif } } /* * Paint a single character. This is for 8-pixel wide fonts. */ int rasops15_putchar8(cookie, row, col, uc, attr) void *cookie; int row, col; u_int uc; long attr; { struct rasops_info *ri; int height, so, 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 rasops15_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) rasops15_makestamp(ri, attr); rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); height = ri->ri_font->fontheight; if (uc == (u_int)-1) { int32_t c = stamp[0]; while (height--) { rp[0] = rp[1] = rp[2] = rp[3] = 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--) { so = STAMP_SHIFT(fr[0], 1) & STAMP_MASK; rp[0] = STAMP_READ(so); rp[1] = STAMP_READ(so + 4); so = STAMP_SHIFT(fr[0], 0) & STAMP_MASK; rp[2] = STAMP_READ(so); rp[3] = STAMP_READ(so + 4); fr += fs; DELTA(rp, ri->ri_stride, int32_t *); } } /* Do underline */ if ((attr & 1) != 0) { int32_t c = STAMP_READ(28); DELTA(rp, -(ri->ri_stride << 1), int32_t *); rp[0] = rp[1] = rp[2] = rp[3] = c; } stamp_mutex--; return 0; } /* * Paint a single character. This is for 12-pixel wide fonts. */ int rasops15_putchar12(cookie, row, col, uc, attr) void *cookie; int row, col; u_int uc; long attr; { struct rasops_info *ri; int height, so, 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 rasops15_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) rasops15_makestamp(ri, attr); rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); height = ri->ri_font->fontheight; if (uc == (u_int)-1) { int32_t c = stamp[0]; while (height--) { rp[0] = rp[1] = rp[2] = rp[3] = rp[4] = rp[5] = 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--) { so = STAMP_SHIFT(fr[0], 1) & STAMP_MASK; rp[0] = STAMP_READ(so); rp[1] = STAMP_READ(so + 4); so = STAMP_SHIFT(fr[0], 0) & STAMP_MASK; rp[2] = STAMP_READ(so); rp[3] = STAMP_READ(so + 4); so = STAMP_SHIFT(fr[1], 1) & STAMP_MASK; rp[4] = STAMP_READ(so); rp[5] = STAMP_READ(so + 4); fr += fs; DELTA(rp, ri->ri_stride, int32_t *); } } /* Do underline */ if (attr & 1) { int32_t c = STAMP_READ(28); DELTA(rp, -(ri->ri_stride << 1), int32_t *); rp[0] = rp[1] = rp[2] = rp[3] = rp[4] = rp[5] = c; } stamp_mutex--; return 0; } /* * Paint a single character. This is for 16-pixel wide fonts. */ int rasops15_putchar16(cookie, row, col, uc, attr) void *cookie; int row, col; u_int uc; long attr; { struct rasops_info *ri; int height, so, 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 rasops15_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) rasops15_makestamp(ri, attr); rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); height = ri->ri_font->fontheight; if (uc == (u_int)-1) { int32_t c = stamp[0]; while (height--) { rp[0] = rp[1] = rp[2] = rp[3] = rp[4] = rp[5] = rp[6] = rp[7] = 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--) { so = STAMP_SHIFT(fr[0], 1) & STAMP_MASK; rp[0] = STAMP_READ(so); rp[1] = STAMP_READ(so + 4); so = STAMP_SHIFT(fr[0], 0) & STAMP_MASK; rp[2] = STAMP_READ(so); rp[3] = STAMP_READ(so + 4); so = STAMP_SHIFT(fr[1], 1) & STAMP_MASK; rp[4] = STAMP_READ(so); rp[5] = STAMP_READ(so + 4); so = STAMP_SHIFT(fr[1], 0) & STAMP_MASK; rp[6] = STAMP_READ(so); rp[7] = STAMP_READ(so + 4); DELTA(rp, ri->ri_stride, int32_t *); fr += fs; } } /* Do underline */ if (attr & 1) { int32_t c = STAMP_READ(28); DELTA(rp, -(ri->ri_stride << 1), int32_t *); rp[0] = rp[1] = rp[2] = rp[3] = rp[4] = rp[5] = rp[6] = rp[7] = c; } stamp_mutex--; return 0; } #endif /* !RASOPS_SMALL */