diff options
author | 2020-10-15 14:52:27 +0300 | |
---|---|---|
committer | 2020-12-01 13:07:53 +0200 | |
commit | e6ad86a86fe3ed73cac6478e07eb1220399ace1f (patch) | |
tree | 58beffdda0ac9fce19432709a79c7c46ce300890 /src/bitmap.c | |
parent | e0c6ec4cf049522b662874f069244b5c19229906 (diff) |
Init waltham-receiver
Bug-AGL: SPEC-3605
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Change-Id: Ia352702d0c43f1f2ccecbffea85f3d0f17f2fd56
Diffstat (limited to 'src/bitmap.c')
-rw-r--r-- | src/bitmap.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/bitmap.c b/src/bitmap.c new file mode 100644 index 0000000..2c7fdb5 --- /dev/null +++ b/src/bitmap.c @@ -0,0 +1,107 @@ +/* + * Copyright (C) 2013 DENSO CORPORATION + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of the copyright holders not be used in + * advertising or publicity pertaining to distribution of the software + * without specific, written prior permission. The copyright holders make + * no representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, 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. + */ +#include "bitmap.h" +#include <stdio.h> + +struct __attribute__ ((__packed__)) BITMAPFILEHEADER { + char bfType[2]; + uint32_t bfSize; + uint16_t bfReserved1; + uint16_t bfReserved2; + uint32_t bfOffBits; +}; + +struct __attribute__ ((__packed__)) BITMAPINFOHEADER { + uint32_t biSize; + uint32_t biWidth; + uint32_t biHeight; + uint16_t biPlanes; + uint16_t biBitCount; + uint32_t biCompression; + uint32_t biSizeImage; + uint32_t biXPixPerMeter; + uint32_t biYPixPerMeter; + uint32_t biClrUsed; + uint32_t biClrImporant; +}; + +static void +create_file_header(struct BITMAPFILEHEADER *file_header, int32_t image_size) +{ + file_header->bfType[0] = 'B'; + file_header->bfType[1] = 'M'; + file_header->bfSize = sizeof(struct BITMAPFILEHEADER) + + sizeof(struct BITMAPINFOHEADER) + + image_size; + file_header->bfOffBits = sizeof(struct BITMAPFILEHEADER) + + sizeof(struct BITMAPINFOHEADER); +} + +static void +create_info_header(struct BITMAPINFOHEADER *info_header, int32_t image_size, int32_t width, int32_t height, int16_t bpp) +{ + info_header->biSize = sizeof(struct BITMAPINFOHEADER); + info_header->biWidth = width; + info_header->biHeight = height; + info_header->biPlanes = 1; + info_header->biBitCount = bpp; + info_header->biSizeImage = image_size; +} + +static int +write_bitmap(const char *filename, + const struct BITMAPFILEHEADER *file_header, + const struct BITMAPINFOHEADER *info_header, + const char *buffer) +{ + FILE *fp = fopen(filename, "w"); + if (fp == NULL) { + return -1; + } + + fwrite(file_header, sizeof(struct BITMAPFILEHEADER), 1, fp); + fwrite(info_header, sizeof(struct BITMAPINFOHEADER), 1, fp); + fwrite(buffer, info_header->biSizeImage, 1, fp); + + fclose(fp); + return 0; +} + +int +save_as_bitmap(const char *filename, + const char *buffer, + int32_t image_size, + int32_t width, + int32_t height, + int16_t bpp) +{ + if ((filename == NULL) || (buffer == NULL)) { + return -1; + } + + struct BITMAPFILEHEADER file_header = {}; + struct BITMAPINFOHEADER info_header = {}; + + create_file_header(&file_header, image_size); + create_info_header(&info_header, image_size, width, height, bpp); + return write_bitmap(filename, &file_header, &info_header, buffer); +} |