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fb.c
(17.07 KB)
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fb_if.m
(111 B)
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fbd.c
(7.66 KB)
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fbreg.h
(13.88 KB)
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s3_pci.c
(13.75 KB)
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splash.c
(5.13 KB)
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splash_bmp.c
(15.63 KB)
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splash_pcx.c
(6.73 KB)
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splash_txt.c
(3.68 KB)
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splashreg.h
(3.49 KB)
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vesa.c
(47.04 KB)
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vesa.h
(4.22 KB)
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vga.c
(82.48 KB)
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vgareg.h
(3.95 KB)
Editing: splash_pcx.c
/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1999 Michael Smith <msmith@freebsd.org> * Copyright (c) 1999 Kazutaka YOKOTA <yokota@freebsd.org> * Copyright (c) 1999 Dag-Erling Coïdan Smørgrav * All rights reserved. * * 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 * in this position and unchanged. * 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. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. * * $FreeBSD$ */ #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/linker.h> #include <sys/module.h> #include <sys/fbio.h> #include <dev/fb/fbreg.h> #include <dev/fb/splashreg.h> static int splash_mode = -1; static int splash_on = FALSE; static int pcx_start(video_adapter_t *adp); static int pcx_end(video_adapter_t *adp); static int pcx_splash(video_adapter_t *adp, int on); static int pcx_init(void *data, int sdepth); static int pcx_draw(video_adapter_t *adp); static splash_decoder_t pcx_decoder = { .name = "splash_pcx", .init = pcx_start, .term = pcx_end, .splash = pcx_splash, .data_type = SPLASH_IMAGE, }; SPLASH_DECODER(splash_pcx, pcx_decoder); static struct { int width; int height; int bpsl; int bpp; int planes; int zlen; const uint8_t *zdata; uint8_t *palette; } pcx_info; static int pcx_start(video_adapter_t *adp) { static int modes[] = { M_VGA_CG320, M_VESA_CG640x480, M_VESA_CG800x600, M_VESA_CG1024x768, -1, }; video_info_t info; int i; if (pcx_decoder.data == NULL || pcx_decoder.data_size <= 0 || pcx_init(pcx_decoder.data, pcx_decoder.data_size)) return (ENODEV); if (bootverbose) printf("splash_pcx: image good:\n" " width = %d\n" " height = %d\n" " depth = %d\n" " planes = %d\n", pcx_info.width, pcx_info.height, pcx_info.bpp, pcx_info.planes); for (i = 0; modes[i] >= 0; ++i) { if (vidd_get_info(adp, modes[i], &info) != 0) continue; if (bootverbose) printf("splash_pcx: considering mode %d:\n" " vi_width = %d\n" " vi_height = %d\n" " vi_depth = %d\n" " vi_planes = %d\n", modes[i], info.vi_width, info.vi_height, info.vi_depth, info.vi_planes); if (info.vi_width >= pcx_info.width && info.vi_height >= pcx_info.height && info.vi_depth == pcx_info.bpp && info.vi_planes == pcx_info.planes) break; } splash_mode = modes[i]; if (splash_mode == -1) return (ENODEV); if (bootverbose) printf("splash_pcx: selecting mode %d\n", splash_mode); return (0); } static int pcx_end(video_adapter_t *adp) { /* nothing to do */ return (0); } static int pcx_splash(video_adapter_t *adp, int on) { if (on) { if (!splash_on) { if (vidd_set_mode(adp, splash_mode) || pcx_draw(adp)) return 1; splash_on = TRUE; } return (0); } else { splash_on = FALSE; return (0); } } struct pcx_header { uint8_t manufactor; uint8_t version; uint8_t encoding; uint8_t bpp; uint16_t xmin; uint16_t ymin; uint16_t xmax; uint16_t ymax; uint16_t hres; uint16_t vres; uint8_t colormap[48]; uint8_t rsvd; uint8_t nplanes; uint16_t bpsl; uint16_t palinfo; uint16_t hsize; uint16_t vsize; }; #define MAXSCANLINE 1024 static int pcx_init(void *data, int size) { const struct pcx_header *hdr = data; if (size < 128 + 1 + 1 + 768 || hdr->manufactor != 10 || hdr->version != 5 || hdr->encoding != 1 || hdr->nplanes != 1 || hdr->bpp != 8 || hdr->bpsl > MAXSCANLINE || ((uint8_t *)data)[size - 769] != 12) { printf("splash_pcx: invalid PCX image\n"); return (1); } pcx_info.width = hdr->xmax - hdr->xmin + 1; pcx_info.height = hdr->ymax - hdr->ymin + 1; pcx_info.bpsl = hdr->bpsl; pcx_info.bpp = hdr->bpp; pcx_info.planes = hdr->nplanes; pcx_info.zlen = size - (128 + 1 + 768); pcx_info.zdata = (uint8_t *)data + 128; pcx_info.palette = (uint8_t *)data + size - 768; return (0); } static int pcx_draw(video_adapter_t *adp) { uint8_t *vidmem; int swidth, sheight, sbpsl, sdepth, splanes; int banksize, origin; int c, i, j, pos, scan, x, y; uint8_t line[MAXSCANLINE]; if (pcx_info.zlen < 1) return (1); vidd_load_palette(adp, pcx_info.palette); vidmem = (uint8_t *)adp->va_window; swidth = adp->va_info.vi_width; sheight = adp->va_info.vi_height; sbpsl = adp->va_line_width; sdepth = adp->va_info.vi_depth; splanes = adp->va_info.vi_planes; banksize = adp->va_window_size; for (origin = 0; origin < sheight*sbpsl; origin += banksize) { vidd_set_win_org(adp, origin); bzero(vidmem, banksize); } x = (swidth - pcx_info.width) / 2; y = (sheight - pcx_info.height) / 2; origin = 0; pos = y * sbpsl + x; while (pos > banksize) { pos -= banksize; origin += banksize; } vidd_set_win_org(adp, origin); for (scan = i = 0; scan < pcx_info.height; ++scan, ++y, pos += sbpsl) { for (j = 0; j < pcx_info.bpsl && i < pcx_info.zlen; ++i) { if ((pcx_info.zdata[i] & 0xc0) == 0xc0) { c = pcx_info.zdata[i++] & 0x3f; if (i >= pcx_info.zlen) return (1); } else { c = 1; } if (j + c > pcx_info.bpsl) return (1); while (c--) line[j++] = pcx_info.zdata[i]; } if (pos > banksize) { origin += banksize; pos -= banksize; vidd_set_win_org(adp, origin); } if (pos + pcx_info.width > banksize) { /* scanline crosses bank boundary */ j = banksize - pos; bcopy(line, vidmem + pos, j); origin += banksize; pos -= banksize; vidd_set_win_org(adp, origin); bcopy(line + j, vidmem, pcx_info.width - j); } else { bcopy(line, vidmem + pos, pcx_info.width); } } return (0); }
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