1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2015 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 #include <sys/types.h> 31 32 #include <stdlib.h> 33 #include <stdio.h> 34 #include <string.h> 35 36 #include "bhyvegc.h" 37 38 struct bhyvegc { 39 struct bhyvegc_image *gc_image; 40 int raw; 41 }; 42 43 struct bhyvegc * 44 bhyvegc_init(int width, int height, void *fbaddr) 45 { 46 struct bhyvegc *gc; 47 struct bhyvegc_image *gc_image; 48 49 gc = calloc(1, sizeof (struct bhyvegc)); 50 51 gc_image = calloc(1, sizeof(struct bhyvegc_image)); 52 gc_image->width = width; 53 gc_image->height = height; 54 if (fbaddr) { 55 gc_image->data = fbaddr; 56 gc->raw = 1; 57 } else { 58 gc_image->data = calloc(width * height, sizeof (uint32_t)); 59 gc->raw = 0; 60 } 61 62 gc->gc_image = gc_image; 63 64 return (gc); 65 } 66 67 void 68 bhyvegc_set_fbaddr(struct bhyvegc *gc, void *fbaddr) 69 { 70 gc->raw = 1; 71 if (gc->gc_image->data && gc->gc_image->data != fbaddr) 72 free(gc->gc_image->data); 73 gc->gc_image->data = fbaddr; 74 } 75 76 void 77 bhyvegc_resize(struct bhyvegc *gc, int width, int height) 78 { 79 struct bhyvegc_image *gc_image; 80 81 gc_image = gc->gc_image; 82 83 gc_image->width = width; 84 gc_image->height = height; 85 if (!gc->raw) { 86 gc_image->data = reallocarray(gc_image->data, width * height, 87 sizeof (uint32_t)); 88 if (gc_image->data != NULL) 89 memset(gc_image->data, 0, width * height * 90 sizeof (uint32_t)); 91 } 92 } 93 94 struct bhyvegc_image * 95 bhyvegc_get_image(struct bhyvegc *gc) 96 { 97 if (gc == NULL) 98 return (NULL); 99 100 return (gc->gc_image); 101 } 102