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