35f7c93cc8
the BSD license header that is the same as in its C header file. MFC after: 4 weeks. Sponsored by: iXsystems Inc.
104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2015 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "bhyvegc.h"
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struct bhyvegc {
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struct bhyvegc_image *gc_image;
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int raw;
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};
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struct bhyvegc *
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bhyvegc_init(int width, int height, void *fbaddr)
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{
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struct bhyvegc *gc;
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struct bhyvegc_image *gc_image;
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gc = calloc(1, sizeof (struct bhyvegc));
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gc_image = calloc(1, sizeof(struct bhyvegc_image));
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gc_image->width = width;
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gc_image->height = height;
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if (fbaddr) {
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gc_image->data = fbaddr;
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gc->raw = 1;
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} else {
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gc_image->data = calloc(width * height, sizeof (uint32_t));
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gc->raw = 0;
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}
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gc->gc_image = gc_image;
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return (gc);
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}
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void
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bhyvegc_set_fbaddr(struct bhyvegc *gc, void *fbaddr)
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{
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gc->raw = 1;
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if (gc->gc_image->data && gc->gc_image->data != fbaddr)
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free(gc->gc_image->data);
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gc->gc_image->data = fbaddr;
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}
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void
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bhyvegc_resize(struct bhyvegc *gc, int width, int height)
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{
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struct bhyvegc_image *gc_image;
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gc_image = gc->gc_image;
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gc_image->width = width;
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gc_image->height = height;
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if (!gc->raw) {
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gc_image->data = reallocarray(gc_image->data, width * height,
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sizeof (uint32_t));
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if (gc_image->data != NULL)
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memset(gc_image->data, 0, width * height *
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sizeof (uint32_t));
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}
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}
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struct bhyvegc_image *
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bhyvegc_get_image(struct bhyvegc *gc)
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{
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if (gc == NULL)
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return (NULL);
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return (gc->gc_image);
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}
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