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https://github.com/SerenityOS/serenity
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6e792553f2
Depending on the driver, the second buffer may not be located right after the first, e.g. it may be page aligned. This removes this assumption and queries the driver for the appropriate offset.
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Platform.h>
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#include <stddef.h>
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#include <sys/cdefs.h>
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#include <sys/ioctl.h>
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__BEGIN_DECLS
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ALWAYS_INLINE int fb_get_size_in_bytes(int fd, size_t* out)
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{
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return ioctl(fd, FB_IOCTL_GET_SIZE_IN_BYTES, out);
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}
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ALWAYS_INLINE int fb_get_resolution(int fd, FBResolution* info)
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{
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return ioctl(fd, FB_IOCTL_GET_RESOLUTION, info);
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}
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ALWAYS_INLINE int fb_set_resolution(int fd, FBResolution* info)
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{
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return ioctl(fd, FB_IOCTL_SET_RESOLUTION, info);
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}
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ALWAYS_INLINE int fb_get_buffer_offset(int fd, int index, unsigned* offset)
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{
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FBBufferOffset fb_buffer_offset;
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fb_buffer_offset.buffer_index = index;
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int result = ioctl(fd, FB_IOCTL_GET_BUFFER_OFFSET, &fb_buffer_offset);
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if (result == 0)
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*offset = fb_buffer_offset.offset;
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return result;
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}
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ALWAYS_INLINE int fb_get_buffer(int fd, int* index)
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{
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return ioctl(fd, FB_IOCTL_GET_BUFFER, index);
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}
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ALWAYS_INLINE int fb_set_buffer(int fd, int index)
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{
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return ioctl(fd, FB_IOCTL_SET_BUFFER, index);
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}
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ALWAYS_INLINE int fb_flush_buffers(int fd, int index, FBRect const* rects, unsigned count)
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{
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FBFlushRects fb_flush_rects;
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fb_flush_rects.buffer_index = index;
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fb_flush_rects.count = count;
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fb_flush_rects.rects = rects;
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return ioctl(fd, FB_IOCTL_FLUSH_BUFFERS, &fb_flush_rects);
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}
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__END_DECLS
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