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 31 #include <sys/types.h> 32 33 #include <stdlib.h> 34 #include <stdio.h> 35 #include <string.h> 36 37 #ifndef __FreeBSD__ 38 #include <pthread.h> 39 #endif 40 41 #include "bhyvegc.h" 42 43 struct bhyvegc { 44 struct bhyvegc_image *gc_image; 45 int raw; 46 }; 47 48 struct bhyvegc * 49 bhyvegc_init(int width, int height, void *fbaddr) 50 { 51 struct bhyvegc *gc; 52 struct bhyvegc_image *gc_image; 53 54 gc = calloc(1, sizeof (struct bhyvegc)); 55 56 gc_image = calloc(1, sizeof(struct bhyvegc_image)); 57 gc_image->width = width; 58 gc_image->height = height; 59 if (fbaddr) { 60 gc_image->data = fbaddr; 61 gc->raw = 1; 62 } else { 63 gc_image->data = calloc(width * height, sizeof (uint32_t)); 64 gc->raw = 0; 65 } 66 67 gc->gc_image = gc_image; 68 69 #ifndef __FreeBSD__ 70 pthread_mutex_init(&gc_image->mtx, NULL); 71 #endif 72 73 return (gc); 74 } 75 76 void 77 bhyvegc_set_fbaddr(struct bhyvegc *gc, void *fbaddr) 78 { 79 #ifndef __FreeBSD__ 80 pthread_mutex_lock(&gc->gc_image->mtx); 81 #endif 82 gc->raw = 1; 83 if (gc->gc_image->data && gc->gc_image->data != fbaddr) 84 free(gc->gc_image->data); 85 gc->gc_image->data = fbaddr; 86 #ifndef __FreeBSD__ 87 pthread_mutex_unlock(&gc->gc_image->mtx); 88 #endif 89 } 90 91 void 92 bhyvegc_resize(struct bhyvegc *gc, int width, int height) 93 { 94 struct bhyvegc_image *gc_image; 95 96 #ifndef __FreeBSD__ 97 pthread_mutex_lock(&gc->gc_image->mtx); 98 #endif 99 gc_image = gc->gc_image; 100 101 gc_image->width = width; 102 gc_image->height = height; 103 if (!gc->raw) { 104 gc_image->data = reallocarray(gc_image->data, width * height, 105 sizeof (uint32_t)); 106 if (gc_image->data != NULL) 107 memset(gc_image->data, 0, width * height * 108 sizeof (uint32_t)); 109 } 110 #ifndef __FreeBSD__ 111 pthread_mutex_unlock(&gc->gc_image->mtx); 112 #endif 113 } 114 115 struct bhyvegc_image * 116 bhyvegc_get_image(struct bhyvegc *gc) 117 { 118 if (gc == NULL) 119 return (NULL); 120 121 return (gc->gc_image); 122 } 123