1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
6  * Copyright (c) 1999 Dag-Erling Smørgrav
24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43 static int splash_mode = -1;
48 static int pcx_splash(video_adapter_t *adp, int on);
54 	.init = pcx_start,
81 		-1,  in pcx_start()
120 	if (splash_mode == -1)  in pcx_start()
135 pcx_splash(video_adapter_t *adp, int on)  in pcx_splash()  argument
137 	if (on) {  in pcx_splash()
178 	    hdr->manufactor != 10 ||  in pcx_init()
179 	    hdr->version != 5 ||  in pcx_init()
180 	    hdr->encoding != 1 ||  in pcx_init()
181 	    hdr->nplanes != 1 ||  in pcx_init()
182 	    hdr->bpp != 8 ||  in pcx_init()
183 	    hdr->bpsl > MAXSCANLINE ||  in pcx_init()
184 	    ((uint8_t *)data)[size - 769] != 12) {  in pcx_init()
188 	pcx_info.width = hdr->xmax - hdr->xmin + 1;  in pcx_init()
189 	pcx_info.height = hdr->ymax - hdr->ymin + 1;  in pcx_init()
190 	pcx_info.bpsl = hdr->bpsl;  in pcx_init()
191 	pcx_info.bpp = hdr->bpp;  in pcx_init()
192 	pcx_info.planes = hdr->nplanes;  in pcx_init()
193 	pcx_info.zlen = size - (128 + 1 + 768);  in pcx_init()
195 	pcx_info.palette = (uint8_t *)data + size - 768;  in pcx_init()
205 	int c, i, j, pos, scan, x, y;  in pcx_draw()  local
213 	vidmem = (uint8_t *)adp->va_window;  in pcx_draw()
214 	swidth = adp->va_info.vi_width;  in pcx_draw()
215 	sheight = adp->va_info.vi_height;  in pcx_draw()
216 	sbpsl = adp->va_line_width;  in pcx_draw()
217 	banksize = adp->va_window_size;  in pcx_draw()
224 	x = (swidth - pcx_info.width) / 2;  in pcx_draw()
225 	y = (sheight - pcx_info.height) / 2;  in pcx_draw()
229 		pos -= banksize;  in pcx_draw()
234 	for (scan = i = 0; scan < pcx_info.height; ++scan, ++y, pos += sbpsl) {  in pcx_draw()
245 			while (c--)  in pcx_draw()
251 			pos -= banksize;  in pcx_draw()
257 			j = banksize - pos;  in pcx_draw()
260 			pos -= banksize;  in pcx_draw()
262 			bcopy(line + j, vidmem, pcx_info.width - j);  in pcx_draw()