From 98ccb3a2d41015b42d46d8b382decc755a003c3f Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Tue, 4 Jun 2024 13:41:11 -0400 Subject: project: Initial commit Signed-off-by: Ian Moffett --- sys/include/dev/video/fbdev.h | 55 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 sys/include/dev/video/fbdev.h (limited to 'sys/include/dev/video') diff --git a/sys/include/dev/video/fbdev.h b/sys/include/dev/video/fbdev.h new file mode 100644 index 0000000..33f8547 --- /dev/null +++ b/sys/include/dev/video/fbdev.h @@ -0,0 +1,55 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _DEV_FBDEV_H_ +#define _DEV_FBDEV_H_ + +#include +#include + +struct fbdev { + uint32_t *mem; + uint32_t width; + uint32_t height; + uint32_t pitch; +}; + +/* + * Get the index into the framebuffer with an x and y + * position. + */ +__always_inline static inline size_t +fbdev_get_index(const struct fbdev *fbdev, uint32_t x, uint32_t y) +{ + return x + y * (fbdev->pitch / 4); +} + +struct fbdev fbdev_get(void); + +#endif /* !_DEV_FBDEV_H_ */ -- cgit v1.2.3