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Last change
on this file since cd1e3fc0 was d7f7a4a, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 3 years ago |
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Replace some license headers with SPDX identifier
Headers are replaced using tools/transorm-copyright.sh only
when it can be matched verbatim with the license header used
throughout most of the codebase.
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-
Property mode
set to
100644
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File size:
717 bytes
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| 1 | /*
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| 2 | * SPDX-FileCopyrightText: 2011 Petr Koupy
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| 3 | *
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| 4 | * SPDX-License-Identifier: BSD-3-Clause
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| 5 | */
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| 6 |
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| 7 | /** @addtogroup libc
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| 8 | * @{
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| 9 | */
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| 10 | /**
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| 11 | * @file
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| 12 | */
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| 13 |
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| 14 | #ifndef _LIBC_IO_PIXEL_H_
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| 15 | #define _LIBC_IO_PIXEL_H_
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| 16 |
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| 17 | #include <stdint.h>
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| 18 |
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| 19 | #define NARROW(channel, bits) \
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| 20 | ((channel) >> (8 - (bits)))
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| 21 |
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| 22 | #define INVERT(pixel) ((pixel) ^ 0x00ffffff)
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| 23 |
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| 24 | #define ALPHA(pixel) ((pixel) >> 24)
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| 25 | #define RED(pixel) (((pixel) & 0x00ff0000) >> 16)
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| 26 | #define GREEN(pixel) (((pixel) & 0x0000ff00) >> 8)
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| 27 | #define BLUE(pixel) ((pixel) & 0x000000ff)
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| 28 |
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| 29 | #define PIXEL(a, r, g, b) \
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| 30 | ((((unsigned)(a) & 0xff) << 24) | (((unsigned)(r) & 0xff) << 16) | \
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| 31 | (((unsigned)(g) & 0xff) << 8) | ((unsigned)(b) & 0xff))
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| 32 |
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| 33 | typedef uint32_t pixel_t;
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| 34 |
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| 35 | #endif
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| 36 |
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| 37 | /** @}
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| 38 | */
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