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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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set to
100644
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File size:
1.1 KB
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| 1 | /*
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| 2 | * SPDX-FileCopyrightText: 2011 Petr Koupy
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| 3 | * SPDX-FileCopyrightText: 2014 Martin Sucha
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| 4 | *
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| 5 | * SPDX-License-Identifier: BSD-3-Clause
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| 6 | */
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| 7 |
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| 8 | /** @addtogroup libc
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| 9 | * @{
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| 10 | */
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| 11 | /**
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| 12 | * @file
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| 13 | */
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| 14 |
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| 15 | #ifndef _LIBC_IO_PIXELMAP_H_
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| 16 | #define _LIBC_IO_PIXELMAP_H_
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| 17 |
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| 18 | #include <types/common.h>
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| 19 | #include <stdbool.h>
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| 20 | #include <stddef.h>
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| 21 | #include <io/pixel.h>
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| 22 |
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| 23 | typedef struct {
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| 24 | sysarg_t width;
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| 25 | sysarg_t height;
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| 26 | pixel_t *data;
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| 27 | } pixelmap_t;
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| 28 |
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| 29 | static inline pixel_t *pixelmap_pixel_at(
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| 30 | pixelmap_t *pixelmap,
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| 31 | sysarg_t x,
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| 32 | sysarg_t y)
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| 33 | {
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| 34 | if (x < pixelmap->width && y < pixelmap->height) {
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| 35 | size_t offset = y * pixelmap->width + x;
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| 36 | pixel_t *pixel = pixelmap->data + offset;
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| 37 | return pixel;
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| 38 | } else {
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| 39 | return NULL;
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| 40 | }
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| 41 | }
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| 42 |
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| 43 | static inline void pixelmap_put_pixel(
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| 44 | pixelmap_t *pixelmap,
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| 45 | sysarg_t x,
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| 46 | sysarg_t y,
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| 47 | pixel_t pixel)
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| 48 | {
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| 49 | pixel_t *target = pixelmap_pixel_at(pixelmap, x, y);
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| 50 | if (target != NULL) {
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| 51 | *target = pixel;
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| 52 | }
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| 53 | }
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| 54 |
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| 55 | static inline pixel_t pixelmap_get_pixel(
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| 56 | pixelmap_t *pixelmap,
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| 57 | sysarg_t x,
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| 58 | sysarg_t y)
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| 59 | {
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| 60 | pixel_t *source = pixelmap_pixel_at(pixelmap, x, y);
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| 61 | if (source != NULL) {
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| 62 | return *source;
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| 63 | } else {
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| 64 | return 0;
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| 65 | }
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| 66 | }
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| 67 |
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| 68 | #endif
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| 69 |
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| 70 | /** @}
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| 71 | */
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