added 2d dft + bmp api (TESTING - may break!)

[my-code/api.git] / bmp / bmp.h

diff --git a/bmp/bmp.h b/bmp/bmp.h
new file mode 100644 (file)
index 0000000..58bee0a
--- /dev/null
+++ b/bmp/bmp.h
@@ -0,0 +1,73 @@
+/* bmp.h -- bmp headers */
+
+#ifndef BMP_H
+#define BMP_H
+
+/* includes */
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+/* defines */
+#define B_SUCCESS 1
+#define B_ERROR -1
+#define B_NO_READ_MODE -2
+#define B_NO_FILE -3
+#define B_NO_HI -4
+#define B_NO_SUPPORT -5
+#define B_HI_FAIL -6
+#define B_E_MEM -7
+#define B_E_READ_DATA -8;
+#define MAX_CHARS_FILE 32
+#define BMP_H_SIZE 14
+#define BMP_I_SIZE 40
+
+/* bmp specific variables */
+typedef struct s_bmp_hdr {
+  unsigned short int identifier;
+  unsigned int size;
+  unsigned short int reserved1;
+  unsigned short int reserved2;
+  unsigned int offset; /* <- 14 + 40 bytes = 0x36 */
+} t_bmp_hdr; /* 14 bytes */
+
+typedef struct s_bmp_info {
+  unsigned int size; /* 40 bytes = 0x28 */
+  int width;
+  int height;
+  unsigned short int planes;
+  unsigned short int bpp;
+  unsigned int compression;
+  unsigned int imagesize;
+  unsigned int xres;
+  unsigned int yres;
+  unsigned int noc;
+  unsigned int ic;
+} t_bmp_info; /* 40 bytes */
+
+typedef struct s_pixel {
+  unsigned char r;
+  unsigned char g;
+  unsigned char b;
+} t_pixel;
+
+typedef struct s_bmp {
+  int outfd;
+  int width;
+  int height;
+  unsigned char mode;
+#define READ (1<<0)
+#define WRITE (1<<1)
+  char file[MAX_CHARS_FILE];
+  int fd;
+  t_bmp_hdr hdr;
+  t_bmp_info info;
+  t_pixel *map;
+} t_bmp;
+
+/* function prototypes */
+int bmp_init(t_bmp *bmp);
+int bmp_shutdown(t_bmp *bmp);
+
+#endif