2b72262b4f
I hereby relicense all my work on Sortix under the ISC license as below. All Sortix contributions by other people are already under this license, are not substantial enough to be copyrightable, or have been removed. All imported code from other projects is compatible with this license. All GPL licensed code from other projects had previously been removed. Copyright 2011-2016 Jonas 'Sortie' Termansen and contributors. Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
81 lines
3.4 KiB
C
81 lines
3.4 KiB
C
/*
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* Copyright (c) 2014, 2015 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* framebuffer.h
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* Framebuffer utilities.
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*/
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#ifndef FRAMEBUFFER_H
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#define FRAMEBUFFER_H
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#include <stddef.h>
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#include <stdint.h>
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struct framebuffer
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{
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size_t pitch;
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uint32_t* buffer;
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size_t xres;
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size_t yres;
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};
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static inline uint32_t framebuffer_get_pixel(const struct framebuffer fb,
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size_t x,
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size_t y)
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{
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if ( fb.xres <= x || fb.yres <= y )
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return 0;
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return fb.buffer[y * fb.pitch + x];
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}
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static inline void framebuffer_set_pixel(const struct framebuffer fb,
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size_t x,
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size_t y,
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uint32_t value)
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{
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if ( fb.xres <= x || fb.yres <= y )
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return;
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fb.buffer[y * fb.pitch + x] = value;
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}
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struct framebuffer framebuffer_crop(struct framebuffer fb,
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size_t left,
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size_t top,
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size_t width,
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size_t height);
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void framebuffer_copy_to_framebuffer(const struct framebuffer dst,
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const struct framebuffer src);
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void framebuffer_copy_to_framebuffer_blend(const struct framebuffer dst,
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const struct framebuffer src);
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struct framebuffer framebuffer_crop_int(struct framebuffer fb,
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int left,
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int top,
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int width,
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int height);
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struct framebuffer framebuffer_cut_left_x(struct framebuffer fb, int offset);
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struct framebuffer framebuffer_cut_right_x(struct framebuffer fb, int offset);
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struct framebuffer framebuffer_cut_top_y(struct framebuffer fb, int offset);
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struct framebuffer framebuffer_cut_bottom_y(struct framebuffer fb, int offset);
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struct framebuffer framebuffer_center_x(struct framebuffer fb, int x, int width);
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struct framebuffer framebuffer_center_y(struct framebuffer fb, int y, int height);
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struct framebuffer framebuffer_right_x(struct framebuffer fb, int x, int width);
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struct framebuffer framebuffer_bottom_y(struct framebuffer fb, int y, int height);
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struct framebuffer framebuffer_center_text_x(struct framebuffer fb, int x, const char* str);
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struct framebuffer framebuffer_center_text_y(struct framebuffer fb, int y, const char* str);
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struct framebuffer framebuffer_right_text_x(struct framebuffer fb, int x, const char* str);
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struct framebuffer framebuffer_bottom_text_y(struct framebuffer fb, int y, const char* str);
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#endif
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