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https://github.com/RGBCube/serenity
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6d7e2596e0
Such mechanism will be used by the Intel Graphics driver, because we lack support of changing the resolution on this driver currently, so, when WindowServer will try to mode-set the display then it will fail, and will use the safe mode-setting call instead to be able to show something on screen.
101 lines
3.5 KiB
C
101 lines
3.5 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_properties(int fd, FBProperties* info)
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{
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return ioctl(fd, FB_IOCTL_GET_PROPERTIES, info);
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}
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// FIXME: Remove this once framebuffer devices are removed.
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ALWAYS_INLINE int fb_get_head_properties(int fd, FBHeadProperties* info)
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{
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return ioctl(fd, FB_IOCTL_GET_HEAD_PROPERTIES, info);
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}
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// FIXME: Remove this once framebuffer devices are removed.
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ALWAYS_INLINE int fb_get_resolution(int fd, FBHeadResolution* info)
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{
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FBHeadProperties head_properties;
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head_properties.head_index = info->head_index;
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if (auto rc = ioctl(fd, FB_IOCTL_GET_HEAD_PROPERTIES, &head_properties); rc < 0)
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return rc;
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info->head_index = head_properties.head_index;
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info->pitch = head_properties.pitch;
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info->width = head_properties.width;
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info->height = head_properties.height;
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return 0;
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}
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// FIXME: Remove this once framebuffer devices are removed.
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ALWAYS_INLINE int fb_set_resolution(int fd, FBHeadResolution* info)
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{
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return ioctl(fd, FB_IOCTL_SET_HEAD_RESOLUTION, info);
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}
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ALWAYS_INLINE int fb_get_head_edid(int fd, FBHeadEDID* info)
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{
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return ioctl(fd, FB_IOCTL_GET_HEAD_EDID, info);
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}
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ALWAYS_INLINE int fb_get_head_vertical_offset_buffer(int fd, FBHeadVerticalOffset* vertical_offset)
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{
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return ioctl(fd, FB_IOCTL_GET_HEAD_VERTICAL_OFFSET_BUFFER, vertical_offset);
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}
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ALWAYS_INLINE int fb_set_head_vertical_offset_buffer(int fd, FBHeadVerticalOffset* vertical_offset)
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{
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return ioctl(fd, FB_IOCTL_SET_HEAD_VERTICAL_OFFSET_BUFFER, vertical_offset);
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}
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ALWAYS_INLINE int fb_set_head_mode_setting(int fd, FBHeadModeSetting* mode_setting)
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{
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return ioctl(fd, FB_IOCTL_SET_HEAD_MODE_SETTING, mode_setting);
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}
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ALWAYS_INLINE int fb_set_safe_head_mode_setting(int fd)
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{
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return ioctl(fd, FB_IOCTL_SET_SAFE_HEAD_MODE_SETTING, nullptr);
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}
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ALWAYS_INLINE int fb_get_head_mode_setting(int fd, FBHeadModeSetting* mode_setting)
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{
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FBHeadModeSetting head_mode_setting;
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if (auto rc = ioctl(fd, FB_IOCTL_GET_HEAD_MODE_SETTING, &head_mode_setting); rc < 0)
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return rc;
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mode_setting->horizontal_stride = head_mode_setting.horizontal_stride;
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mode_setting->pixel_clock_in_khz = head_mode_setting.pixel_clock_in_khz;
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mode_setting->horizontal_active = head_mode_setting.horizontal_active;
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mode_setting->horizontal_front_porch_pixels = head_mode_setting.horizontal_front_porch_pixels;
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mode_setting->horizontal_sync_time_pixels = head_mode_setting.horizontal_sync_time_pixels;
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mode_setting->horizontal_blank_pixels = head_mode_setting.horizontal_blank_pixels;
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mode_setting->vertical_active = head_mode_setting.vertical_active;
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mode_setting->vertical_front_porch_lines = head_mode_setting.vertical_front_porch_lines;
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mode_setting->vertical_sync_time_lines = head_mode_setting.vertical_sync_time_lines;
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mode_setting->vertical_blank_lines = head_mode_setting.vertical_blank_lines;
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mode_setting->horizontal_offset = head_mode_setting.horizontal_offset;
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mode_setting->vertical_offset = head_mode_setting.vertical_offset;
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return 0;
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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_HEAD_BUFFERS, &fb_flush_rects);
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}
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__END_DECLS
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