diff options
Diffstat (limited to 'src/capture.c')
| -rw-r--r-- | src/capture.c | 100 |
1 files changed, 84 insertions, 16 deletions
diff --git a/src/capture.c b/src/capture.c index a052709..72c1f81 100644 --- a/src/capture.c +++ b/src/capture.c @@ -6,7 +6,7 @@ /* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */ /* +#+#+#+#+#+ +#+ */ /* Created: 2020/01/11 13:15:11 by cacharle #+# #+# */ -/* Updated: 2020/02/02 08:33:14 by cacharle ### ########.fr */ +/* Updated: 2020/02/03 02:25:43 by cacharle ### ########.fr */ /* */ /* ************************************************************************** */ @@ -14,14 +14,14 @@ #define BM_FILE_TYPE 19778 #define DATA_OFFSET 1078 -#define BITMAP_INFO_HEADER_SIZE 40 +#define BITMAP_INFO_HEADER_SIZE 0x424d #define CAPTURE_FILENAME "capture.bmp" int capture(t_state *state) { t_bmp_header header; - render_update_window(state, CELL_WALL); + render_update_window(state); bmp_fill_header(&state->window, &header); if (!bmp_write(&state->window, &header)) { @@ -31,15 +31,81 @@ int capture(t_state *state) return (0); } +unsigned char* createBitmapFileHeader(int height, int width, int paddingSize){ + int fileSize = 14 + 40 + (3*width+paddingSize) * height; + + static unsigned char fileHeader[] = { + 0,0, /// signature + 0,0,0,0, /// image file size in bytes + 0,0,0,0, /// reserved + 0,0,0,0, /// start of pixel array + }; + + fileHeader[ 0] = (unsigned char)('B'); + fileHeader[ 1] = (unsigned char)('M'); + fileHeader[ 2] = (unsigned char)(fileSize ); + fileHeader[ 3] = (unsigned char)(fileSize>> 8); + fileHeader[ 4] = (unsigned char)(fileSize>>16); + fileHeader[ 5] = (unsigned char)(fileSize>>24); + fileHeader[10] = (unsigned char)(14 + 40); + + return fileHeader; +} + +unsigned char* createBitmapInfoHeader(int height, int width){ + static unsigned char infoHeader[] = { + 0,0,0,0, /// header size + 0,0,0,0, /// image width + 0,0,0,0, /// image height + 0,0, /// number of color planes + 0,0, /// bits per pixel + 0,0,0,0, /// compression + 0,0,0,0, /// image size + 0,0,0,0, /// horizontal resolution + 0,0,0,0, /// vertical resolution + 0,0,0,0, /// colors in color table + 0,0,0,0, /// important color count + }; + + infoHeader[ 0] = (unsigned char)(40); + infoHeader[ 4] = (unsigned char)(width ); + infoHeader[ 5] = (unsigned char)(width>> 8); + infoHeader[ 6] = (unsigned char)(width>>16); + infoHeader[ 7] = (unsigned char)(width>>24); + infoHeader[ 8] = (unsigned char)(height ); + infoHeader[ 9] = (unsigned char)(height>> 8); + infoHeader[10] = (unsigned char)(height>>16); + infoHeader[11] = (unsigned char)(height>>24); + infoHeader[12] = (unsigned char)(1); + infoHeader[14] = (unsigned char)(3*8); + + return infoHeader; +} + t_bool bmp_write(t_image *image, t_bmp_header *header) { int fd; - if ((fd = open(CAPTURE_FILENAME, O_WRONLY | O_CREAT)) < 0) + unsigned char padding[3] = {0, 0, 0}; + int paddingSize = (4 - (image->width*3) % 4) % 4; //redundant? + unsigned char* fileHeader = createBitmapFileHeader(image->height, image->width, paddingSize); + unsigned char* infoHeader = createBitmapInfoHeader(image->height, image->width); + + if ((fd = open(CAPTURE_FILENAME, O_WRONLY | O_CREAT, S_IRWXU)) < 0) return (FALSE); - printf("%d\n", fd); - write(fd, &header, sizeof(t_bmp_header)); - write(fd, image->data, image->width * image->height * 4); + + write(fd, fileHeader, 14); + write(fd, infoHeader, 40); + /* write(fd, &header, sizeof(t_bmp_header)); */ + for (int i = 0; i < image->width; i++) + { + for (int j = 0; j < image->height; j++) + { + write(fd, &image->data[4 * (i * image->width + j)], 3); + } + write(fd, padding, paddingSize); + } + /* write(fd, image->data, image->width * image->height * 4); */ close(fd); return (TRUE); } @@ -47,23 +113,25 @@ t_bool bmp_write(t_image *image, t_bmp_header *header) void bmp_fill_header(t_image *image, t_bmp_header *header) { header->file_header.file_type = BM_FILE_TYPE; - header->file_header.file_size = sizeof(t_bmp_header) + image->width * image->height * 4; + header->file_header.file_size = sizeof(t_bmp_header) + image->width * image->height * 3; header->file_header.reserved1 = 0; header->file_header.reserved1 = 0; - header->file_header.offset = DATA_OFFSET; - header->info_header.size = sizeof(t_bmp_header) + image->width * image->height * 4; + header->file_header.offset = sizeof(t_bmp_header); + + header->info_header.size = sizeof(header->info_header); header->info_header.width = image->width; header->info_header.height = image->height; header->info_header.planes = 0; - header->info_header.depth = 8 * 4; + header->info_header.depth = 8 * 3; header->info_header.compression = 0; - header->info_header.size_image = 0; + header->info_header.size_image = image->width * image->height * 3; header->info_header.w_pix_per_meter = 0; header->info_header.h_pix_per_meter = 0; header->info_header.color_used = 0; header->info_header.color_important = 0; - header->color_table.blue = 0xff; - header->color_table.green = 0xff; - header->color_table.red = 0xff; - header->color_table.reserved = 0; + + /* header->color_table.blue = 0xff; */ + /* header->color_table.green = 0xff; */ + /* header->color_table.red = 0xff; */ + /* header->color_table.reserved = 0; */ } |