├── Image2cGUI.py
├── LICENSE
├── Makefile
├── README.md
├── badger.gif
├── dist
    ├── MacOS
    │   ├── Image2cGUI
    │   ├── app_icon.ico
    │   └── image_to_c
    └── Windows
    │   ├── GUI.png
    │   ├── Image2cGUI.exe
    │   ├── app_icon.ico
    │   ├── image_to_c32.exe
    │   └── image_to_c64.exe
├── main.c
└── screenshot.png


/Image2cGUI.py:
--------------------------------------------------------------------------------
  1 | import subprocess
  2 | import sys
  3 | import os
  4 | import ctypes
  5 | import platform  # <-- added
  6 | 
  7 | # Function to check if a module is installed
  8 | def is_module_installed(module_name):
  9 |     try:
 10 |         __import__(module_name)
 11 |         return True
 12 |     except ImportError:
 13 |         return False
 14 | 
 15 | # Function to check if pip is available
 16 | def is_pip_available():
 17 |     try:
 18 |         subprocess.run([sys.executable, "-m", "pip", "--version"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 19 |         return True
 20 |     except:
 21 |         return False
 22 | 
 23 | # Function to install a module using pip
 24 | def install_module(module_name):
 25 |     subprocess.check_call([sys.executable, "-m", "pip", "install", module_name])
 26 | 
 27 | # Check if tkinter is installed
 28 | if not is_module_installed("tkinter"):
 29 |     if not is_pip_available():
 30 |         print("pip is not installed on your system.")
 31 |         print("Please download and install Python from https://www.python.org/downloads/windows/")
 32 |         sys.exit()
 33 | 
 34 |     user_input = input("tkinter is not installed. Would you like to install it now? (yes/no): ")
 35 |     if user_input.lower() == "yes":
 36 |         install_module("tkinter")
 37 |     else:
 38 |         print("Exiting as tkinter is required for the GUI.")
 39 |         sys.exit()
 40 | 
 41 | import tkinter as tk
 42 | from tkinter import filedialog, messagebox
 43 | 
 44 | # Function to hide the console window
 45 | def hide_console_window():
 46 |     ctypes.windll.user32.ShowWindow(ctypes.windll.kernel32.GetConsoleWindow(), 0)
 47 | 
 48 | def select_input_file():
 49 |     filepath = filedialog.askopenfilename(
 50 |         title="Select Input Image",
 51 |         filetypes=[
 52 |             ("Supported files", "*.png;*.jpeg;*.jpg;*.bmp;*.tiff;*.tif;*.gif;*.ppm;*.tga;*.cgm;*.cal;*.pcx"),
 53 |             ("All files", "*.*")
 54 |         ]
 55 |     )
 56 |     if filepath:
 57 |         input_file_var.set(filepath)
 58 | 
 59 | def convert_image():
 60 |     input_file = input_file_var.get()
 61 |     if not input_file:
 62 |         return
 63 | 
 64 |     output_file = os.path.splitext(input_file)[0] + ".h"
 65 |     
 66 |     # Check OS and set command accordingly
 67 |     if platform.system() == "Windows":
 68 |         command = ["./image_to_c64"] if os.environ["PROCESSOR_ARCHITECTURE"] == "AMD64" else ["./image_to_c32"]
 69 |     elif platform.system() == "Darwin":  # Darwin indicates macOS
 70 |         command = ["./image_to_c"]
 71 |     else:
 72 |         messagebox.showerror("Error", "Unsupported Operating System!")
 73 |         return
 74 |     
 75 |     if strip_var.get():
 76 |         command.append("--strip")
 77 | 
 78 |     command.append(input_file)
 79 | 
 80 |     result = subprocess.run(command, stdout=open(output_file, 'w'))
 81 | 
 82 |     if result.returncode == 0:
 83 |         messagebox.showinfo("Success", f"Image conversion successful! Output saved to: {output_file}")
 84 |     else:
 85 |         messagebox.showerror("Error", "Image conversion failed!")
 86 | 
 87 | app = tk.Tk()
 88 | app.title("Image to C")
 89 | app.iconbitmap('app_icon.ico')
 90 | 
 91 | input_file_var = tk.StringVar()
 92 | 
 93 | input_frame = tk.Frame(app)
 94 | input_frame.pack(pady=20, padx=20, fill=tk.X)
 95 | 
 96 | input_label = tk.Label(input_frame, text="Input File:")
 97 | input_label.pack(side=tk.LEFT)
 98 | 
 99 | input_entry = tk.Entry(input_frame, textvariable=input_file_var, width=40)
100 | input_entry.pack(side=tk.LEFT, padx=10, expand=True, fill=tk.X)
101 | 
102 | input_button = tk.Button(input_frame, text="Browse", command=select_input_file)
103 | input_button.pack(side=tk.LEFT)
104 | 
105 | strip_var = tk.IntVar()
106 | strip_checkbox = tk.Checkbutton(app, text="Strip", variable=strip_var)
107 | strip_checkbox.pack(pady=10)
108 | 
109 | convert_button = tk.Button(app, text="Convert", command=convert_image)
110 | convert_button.pack(pady=20)
111 | 
112 | # Hide the console window (only for Windows)
113 | if platform.system() == "Windows":
114 |     hide_console_window()
115 | 
116 | # Center the window on the screen
117 | def center_window():
118 |     app.update_idletasks()
119 |     window_width = app.winfo_width()
120 |     window_height = app.winfo_height()
121 |     screen_width = app.winfo_screenwidth()
122 |     screen_height = app.winfo_screenheight()
123 |     x = (screen_width / 2) - (window_width / 2)
124 |     y = (screen_height / 2) - (window_height / 2)
125 |     app.geometry(f'+{int(x)}+{int(y)}')
126 | 
127 | center_window()
128 | # Start the tkinter main loop
129 | app.mainloop()
130 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
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--------------------------------------------------------------------------------
/Makefile:
--------------------------------------------------------------------------------
 1 | CFLAGS=-c -Wall -O0 
 2 | LIBS = 
 3 | 
 4 | all: image_to_c 
 5 | 
 6 | image_to_c: main.o 
 7 | 	$(CC) main.o $(LIBS) -o image_to_c 
 8 | 
 9 | main.o: main.c
10 | 	$(CC) $(CFLAGS) main.c
11 | 
12 | clean:
13 | 	rm -rf *.o image_to_c
14 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | image_to_c
 2 | ----------
 3 | Added  GUI wrapper. For windows run 'Image2cGUI.exe' and for Mac run 'Image2cGUI'.
 4 | <img src="https://github.com/jobitjoseph/image_to_c/blob/3ee9865857c19e6548583b8c9cb687b0cdebe025/dist/Windows/GUI.png" width="" alt="alt_text" title="image_tooltip">
 5 | <br>
 6 | A command line tool for turning binary image files into C source code. The output is an array of unsigned chars and is sent to stdout. Included are comments detailing the image type, size and other details.
 7 | </b>
 8 | <br>
 9 | <br>
10 | <b>Why did you write it?</b><br>
11 | My existing tool (bin_to_c) is similar in that it generates C arrays to compile file data directly into a project. I have used this tool to create many .H files to include with my projects, but the filename alone isn't enough to know the details of the image file contained in the data. Instead of manually adding this information to each file, I came up with the idea of combining my imageinfo tool with the bin_to_c tool to make something even more useful.<br>
12 | <b>What does the output look like?</b><br>
13 | Here's an example of a before and after of what this new tool does:<br>
14 | 
15 | It turns this type of file:<br>
16 | ![Animated GIF](/badger.gif?raw=true "Animated GIF")
17 | 
18 | Into this type of file:<br>
19 | ![screenshot](/screenshot.png?raw=true "screenshot")
20 | 
21 | <b>What image file types does it support?</b><br>
22 | 
23 | PNG, JPEG, BMP, TIFF, GIF, PPM, TARGA, JEDMICS, CALS and PCX<br>
24 | 
25 | <b>What happens for unrecognized files?</b><br>
26 | If the file type is not known, it will generate the same C output, but without additional info.<br>
27 | 
28 | <b>New Feature</b><br>
29 | I just added the ability to write only the image data and strip off the header/metadata. Use the --strip option on TIFF and BMP files.<br>
30 | Example: ./image_to_c --strip input.bmp > output.h<br>
31 | This will only write the pixel data (compressed or not) to the output file<br>
32 | 
33 | If you find this code useful, please consider sending a donation or becoming a Github sponsor.
34 | 
35 | [![paypal](https://www.paypalobjects.com/en_US/i/btn/btn_donateCC_LG.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=SR4F44J2UR8S4)
36 | 
37 | 


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/badger.gif:
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https://raw.githubusercontent.com/bitbank2/image_to_c/be37230ba623b2cdca9a798058ef71bc936570f0/badger.gif


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/dist/MacOS/Image2cGUI:
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https://raw.githubusercontent.com/bitbank2/image_to_c/be37230ba623b2cdca9a798058ef71bc936570f0/dist/MacOS/Image2cGUI


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/dist/MacOS/app_icon.ico:
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https://raw.githubusercontent.com/bitbank2/image_to_c/be37230ba623b2cdca9a798058ef71bc936570f0/dist/MacOS/app_icon.ico


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/dist/MacOS/image_to_c:
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https://raw.githubusercontent.com/bitbank2/image_to_c/be37230ba623b2cdca9a798058ef71bc936570f0/dist/MacOS/image_to_c


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/dist/Windows/GUI.png:
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https://raw.githubusercontent.com/bitbank2/image_to_c/be37230ba623b2cdca9a798058ef71bc936570f0/dist/Windows/GUI.png


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/dist/Windows/Image2cGUI.exe:
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https://raw.githubusercontent.com/bitbank2/image_to_c/be37230ba623b2cdca9a798058ef71bc936570f0/dist/Windows/Image2cGUI.exe


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/dist/Windows/app_icon.ico:
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https://raw.githubusercontent.com/bitbank2/image_to_c/be37230ba623b2cdca9a798058ef71bc936570f0/dist/Windows/app_icon.ico


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/dist/Windows/image_to_c32.exe:
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https://raw.githubusercontent.com/bitbank2/image_to_c/be37230ba623b2cdca9a798058ef71bc936570f0/dist/Windows/image_to_c32.exe


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/dist/Windows/image_to_c64.exe:
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https://raw.githubusercontent.com/bitbank2/image_to_c/be37230ba623b2cdca9a798058ef71bc936570f0/dist/Windows/image_to_c64.exe


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/main.c:
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  1 | //
  2 | // image_to_c - convert binary image files into c-compatible data tables
  3 | //
  4 | // Written by Larry Bank
  5 | // Copyright (c) 2020 BitBank Software, Inc.
  6 | // Change history
  7 | // 12/2/20 - Started the project
  8 | //
  9 | #include <stdint.h>
 10 | #include <string.h>
 11 | #include <stdio.h>
 12 | #include <stdlib.h>
 13 | 
 14 | #define TEMP_BUF_SIZE 4096
 15 | #define DEFAULT_READ_SIZE 256
 16 | #define MAX_TAGS 256
 17 | #define TIFF_TAGSIZE 12
 18 | 
 19 | #define INTELSHORT(p) ((*p) + (*(p+1)<<8))
 20 | #define INTELLONG(p) ((*p) + (*(p+1)<<8) + (*(p+2)<<16) + (*(p+3)<<24))
 21 | #define MOTOSHORT(p) (((*(p))<<8) + (*(p+1)))
 22 | #define MOTOLONG(p) (((*p)<<24) + ((*(p+1))<<16) + ((*(p+2))<<8) + (*(p+3)))
 23 | 
 24 | #ifdef _WIN32
 25 | #define PILIO_SLASH_CHAR '\\'
 26 | #else
 27 | #define PILIO_SLASH_CHAR '/'
 28 | #endif
 29 | 
 30 | typedef unsigned char BOOL;
 31 | 
 32 | const char *szType[] = {"Unknown", "PNG","JFIF","Win BMP","OS/2 BMP","TIFF","GIF","Portable Pixmap","Targa","JEDMICS","CALS","PCX"};
 33 | const char *szComp[] = {"Unknown", "Flate","JPEG","None","RLE","LZW","G3","G4","Packbits","Modified Huffman","Thunderscan RLE","JBIG (T.85)"};
 34 | const char *szPhotometric[] = {"WhiteIsZero","BlackIsZero","RGB","Palette Color","Transparency Mask","CMYK","YCbCr","Unknown"};
 35 | const char *szPlanar[] = {"Unknown","Chunky","Planar"};
 36 | 
 37 | enum
 38 | {
 39 |     FILETYPE_UNKNOWN = 0,
 40 |     FILETYPE_PNG,
 41 |     FILETYPE_JPEG,
 42 |     FILETYPE_BMP,
 43 |     FILETYPE_OS2BMP,
 44 |     FILETYPE_TIFF,
 45 |     FILETYPE_GIF,
 46 |     FILETYPE_PPM,
 47 |     FILETYPE_TARGA,
 48 |     FILETYPE_JEDMICS,
 49 |     FILETYPE_CALS,
 50 |     FILETYPE_PCX
 51 | };
 52 | 
 53 | enum
 54 | {
 55 |     COMPTYPE_UNKNOWN = 0,
 56 |     COMPTYPE_FLATE,
 57 |     COMPTYPE_JPEG,
 58 |     COMPTYPE_NONE,
 59 |     COMPTYPE_RLE,
 60 |     COMPTYPE_LZW,
 61 |     COMPTYPE_G3,
 62 |     COMPTYPE_G4,
 63 |     COMPTYPE_PACKBITS,
 64 |     COMPTYPE_HUFFMAN,
 65 |     COMPTYPE_THUNDERSCAN,
 66 |     COMPTYPE_JBIG
 67 | };
 68 | 
 69 | FILE * ihandle;
 70 | void MakeC(unsigned char *, int, int);
 71 | void GetLeafName(char *fname, char *leaf);
 72 | void FixName(char *name);
 73 | 
 74 | unsigned short TIFFSHORT(unsigned char *p, BOOL bMotorola)
 75 | {
 76 |     unsigned short s;
 77 |     
 78 |     if (bMotorola)
 79 |         s = *p * 0x100 + *(p+1);
 80 |     else
 81 |         s = *p + *(p+1)*0x100;
 82 |     
 83 |     return s;
 84 | } /* TIFFSHORT() */
 85 | 
 86 | uint32_t TIFFLONG(unsigned char *p, BOOL bMotorola)
 87 | {
 88 |     uint32_t l;
 89 |     
 90 |     if (bMotorola)
 91 |         l = *p * 0x1000000 + *(p+1) * 0x10000 + *(p+2) * 0x100 + *(p+3);
 92 |     else
 93 |         l = *p + *(p+1) * 0x100 + *(p+2) * 0x10000 + *(p+3) * 0x1000000;
 94 |     
 95 |     return l;
 96 | } /* TIFFLONG() */
 97 | 
 98 | int TIFFVALUE(unsigned char *p, BOOL bMotorola)
 99 | {
100 |     int i, iType;
101 |     
102 |     iType = TIFFSHORT(p+2, bMotorola);
103 |     /* If pointer to a list of items, must be a long */
104 |     if (TIFFSHORT(p+4, bMotorola) > 1)
105 |         iType = 4;
106 |     switch (iType)
107 |     {
108 |         case 3: /* Short */
109 |             i = TIFFSHORT(p+8, bMotorola);
110 |             break;
111 |         case 4: /* Long */
112 |         case 7: // undefined (treat it as a long since it's usually a multibyte buffer)
113 |             i = TIFFLONG(p+8, bMotorola);
114 |             break;
115 |         case 6: // signed byte
116 |             i = (signed char)p[8];
117 |             break;
118 |         case 2: /* ASCII */
119 |         case 5: /* Unsigned Rational */
120 |         case 10: /* Signed Rational */
121 |             i = TIFFLONG(p+8, bMotorola);
122 |             break;
123 |         default: /* to suppress compiler warning */
124 |             i = 0;
125 |             break;
126 |     }
127 |     return i;
128 |     
129 | } /* TIFFVALUE() */
130 | 
131 | int ParseNumber(unsigned char *buf, int *iOff, int iLength)
132 | {
133 |     int i, iOffset;
134 |     
135 |     i = 0;
136 |     iOffset = *iOff;
137 |     
138 |     while (iOffset < iLength && buf[iOffset] >= '0' && buf[iOffset] <= '9')
139 |     {
140 |         i *= 10;
141 |         i += (int)(buf[iOffset++] - '0');
142 |     }
143 |     *iOff = iOffset+1; /* Skip ending char */
144 |     return i;
145 |     
146 | } /* ParseNumber() */
147 | 
148 | //
149 | // CountGIFFrames
150 | //
151 | // Given a pointer to a multipage GIF image
152 | // This function will walk through the file and count the number
153 | // of frames present
154 | //
155 | int CountGIFFrames(unsigned char *cBuf, int iFileSize)
156 | {
157 |     int iNumFrames;
158 |     size_t iOff;
159 |     int bDone = 0;
160 |     int bExt;
161 |     unsigned char c;
162 |     
163 |     iNumFrames = 0;
164 |     iOff = 10;
165 |     c = cBuf[iOff]; // get info bits
166 |     iOff += 3;   /* Skip flags, background color & aspect ratio */
167 |     if (c & 0x80) /* Deal with global color table */
168 |     {
169 |         c &= 7;  /* Get the number of colors defined */
170 |         iOff += (2<<c)*3; /* skip color table */
171 |     }
172 |     while (!bDone && iOff < iFileSize)
173 |     {
174 |         bExt = 1; /* skip extension blocks */
175 |         while (!bDone && bExt && iOff < iFileSize)
176 |         {
177 |             switch(cBuf[iOff])
178 |             {
179 |                 case 0x3b: /* End of file */
180 |                     /* we were fooled into thinking there were more frames */
181 |                     iNumFrames--;
182 |                     bDone = 1;
183 |                     continue;
184 |                     // F9 = Graphic Control Extension (fixed length of 4 bytes)
185 |                     // FE = Comment Extension
186 |                     // FF = Application Extension
187 |                     // 01 = Plain Text Extension
188 |                 case 0x21: /* Extension block */
189 |                     iOff += 2; /* skip to length */
190 |                     iOff += (int)cBuf[iOff]; /* Skip the data block */
191 |                     iOff++;
192 |                     // block terminator or optional sub blocks
193 |                     c = cBuf[iOff++]; /* Skip any sub-blocks */
194 |                     while (c && iOff < iFileSize)
195 |                     {
196 |                         iOff += (int)c;
197 |                         c = cBuf[iOff++];
198 |                     }
199 |                     if (c != 0) // problem, we went past the end
200 |                     {
201 |                         iNumFrames--; // possible corrupt data; stop
202 |                         bDone = 1;
203 |                         continue;
204 |                     }
205 |                     break;
206 |                 case 0x2c: /* Start of image data */
207 |                     bExt = 0; /* Stop doing extension blocks */
208 |                     break;
209 |                 default:
210 |                     /* Corrupt data, stop here */
211 |                     iNumFrames--;
212 |                     bDone = 1;
213 |                     //                    *bTruncated = TRUE;
214 |                     continue;
215 |             }
216 |         }
217 |         if (iOff >= iFileSize) // problem
218 |         {
219 |             iNumFrames--; // possible corrupt data; stop
220 |             bDone = 1;
221 |             //            *bTruncated = TRUE;
222 |             continue;
223 |         }
224 |         /* Start of image data */
225 |         c = cBuf[iOff+9]; /* Get the flags byte */
226 |         iOff += 10; /* Skip image position and size */
227 |         if (c & 0x80) /* Local color table */
228 |         {
229 |             c &= 7;
230 |             iOff += (2<<c)*3;
231 |         }
232 |         iOff++; /* Skip LZW code size byte */
233 |         c = cBuf[iOff++];
234 |         while (c && iOff < iFileSize) /* While there are more data blocks */
235 |         {
236 |             iOff += (int)c;  /* Skip this data block */
237 |             if (iOff > iFileSize) // past end of file, stop
238 |             {
239 |                 iNumFrames--; // don't count this frame
240 |                 break; // last page is corrupted, don't use it
241 |             }
242 |             c = cBuf[iOff++]; /* Get length of next */
243 |         }
244 |         /* End of image data, check for more frames... */
245 |         if ((iOff > iFileSize) || cBuf[iOff] == 0x3b)
246 |         {
247 |             bDone = 1; /* End of file has been reached */
248 |         }
249 |         else
250 |         {
251 |             iNumFrames++;
252 |         }
253 |     } /* while !bDone */
254 |     return iNumFrames;
255 |     
256 | } /* CountGIFFrames() */
257 | //
258 | // Returns the image data size
259 | //
260 | int ImageInfo(FILE *iHandle, int iFileSize, char *szInfo, int *iDataOff)
261 | {
262 |     int i, j, k;
263 |     int iBytes;
264 |     int iFileType = FILETYPE_UNKNOWN;
265 |     int iCompression = COMPTYPE_UNKNOWN;
266 |     unsigned char cBuf[TEMP_BUF_SIZE]; // small buffer to load header info
267 |     int iBpp = 0;
268 |     int iWidth = 0;
269 |     int iHeight = 0;
270 |     int iOffset;
271 |     int iMarker;
272 |     int iPhotoMetric;
273 |     int iPlanar;
274 |     int iCount;
275 |     int iDataSize = 0; // size of the compressed data
276 |     unsigned char ucSubSample;
277 |     BOOL bMotorola;
278 |     char szOptions[256];
279 |     
280 |     szInfo[0] = 0; // start with null string
281 |     
282 |     // Detect the file type by its header
283 |     iBytes = fread(cBuf, 1, DEFAULT_READ_SIZE, iHandle);
284 |     if (iBytes < 64)
285 |         return -1; // too small
286 |     if (MOTOLONG(cBuf) == 0x89504e47) // PNG
287 |         iFileType = FILETYPE_PNG;
288 |     else if (cBuf[0] == 'B' && cBuf[1] == 'M') // BMP
289 |     {
290 |         if (cBuf[14] == 0x28) // Windows
291 |             iFileType = FILETYPE_BMP;
292 |         else
293 |             iFileType = FILETYPE_OS2BMP;
294 |     }
295 |     else if (cBuf[0] == 0x0a && cBuf[1] < 0x6 && cBuf[2] == 0x01)
296 |     {
297 |         iFileType = FILETYPE_PCX;
298 |     }
299 |     else if (INTELLONG(cBuf) == 0x80 && (cBuf[36] == 4 || cBuf[36] == 6))
300 |     {
301 |         iFileType = FILETYPE_JEDMICS;
302 |     }
303 |     else if (INTELLONG(cBuf) == 0x64637273)
304 |     {
305 |         iFileType = FILETYPE_CALS;
306 |     }
307 |     else if ((MOTOLONG(cBuf) & 0xffffff00) == 0xffd8ff00) // JPEG
308 |         iFileType = FILETYPE_JPEG;
309 |     else if (MOTOLONG(cBuf) == 0x47494638 /*'GIF8'*/) // GIF
310 |         iFileType = FILETYPE_GIF;
311 |     else if ((cBuf[0] == 'I' && cBuf[1] == 'I') || (cBuf[0] == 'M' && cBuf[1] == 'M'))
312 |         iFileType = FILETYPE_TIFF;
313 |     else
314 |     {
315 |         i = MOTOLONG(cBuf) & 0xffff8080;
316 |         if (i == 0x50360000 || i == 0x50350000 || i == 0x50340000) // Portable bitmap/graymap/pixmap
317 |             iFileType = FILETYPE_PPM;
318 |     }
319 |     // Check for Truvision Targa
320 |     i = cBuf[1] & 0xfe;
321 |     j = cBuf[2];
322 |     // make sure it is not a MPEG file (starts with 00 00 01 BA)
323 |     if (MOTOLONG(cBuf) != 0x1ba && MOTOLONG(cBuf) != 0x1b3 && i == 0 && (j == 1 || j == 2 || j == 3 || j == 9 || j == 10 || j == 11))
324 |         iFileType = FILETYPE_TARGA;
325 |     
326 |     if (iFileType == FILETYPE_UNKNOWN)
327 |     {
328 |         return -1;
329 |     }
330 |     szOptions[0] = '\0'; // info specific to each file type
331 |     // Get info specific to each type of file
332 |     switch (iFileType)
333 |     {
334 |         case FILETYPE_PCX:
335 |             iWidth = 1 + INTELSHORT(&cBuf[8]) - INTELSHORT(&cBuf[4]);
336 |             iHeight = 1 + INTELSHORT(&cBuf[10]) - INTELSHORT(&cBuf[6]);
337 |             iCompression = COMPTYPE_PACKBITS;
338 |             iBpp = cBuf[3] * cBuf[65];
339 |             break;
340 |             
341 |         case FILETYPE_PNG:
342 |             if (MOTOLONG(&cBuf[12]) == 0x49484452/*'IHDR'*/)
343 |             {
344 |                 iWidth = MOTOLONG(&cBuf[16]);
345 |                 iHeight = MOTOLONG(&cBuf[20]);
346 |                 iCompression = COMPTYPE_FLATE;
347 |                 i = cBuf[24]; // bits per pixel
348 |                 j = cBuf[25]; // pixel type
349 |                 switch (j)
350 |                 {
351 |                     case 0: // grayscale
352 |                     case 3: // palette image
353 |                         iBpp = i;
354 |                         break;
355 |                     case 2: // RGB triple
356 |                         iBpp = i * 3;
357 |                         break;
358 |                     case 4: // grayscale + alpha channel
359 |                         iBpp = i * 2;
360 |                         break;
361 |                     case 6: // RGB + alpha
362 |                         iBpp = i * 4;
363 |                         break;
364 |                 }
365 |                 if (cBuf[28] == 1) // interlace flag
366 |                     strcpy(szOptions, ", Interlaced");
367 |                 else
368 |                     strcpy(szOptions, ", Not interlaced");
369 |             }
370 |             break;
371 |         case FILETYPE_TARGA:
372 |             iWidth = INTELSHORT(&cBuf[12]);
373 |             iHeight = INTELSHORT(&cBuf[14]);
374 |             iBpp = cBuf[16];
375 |             if (cBuf[2] == 3 || cBuf[2] == 11) // monochrome
376 |                 iBpp = 1;
377 |             if (cBuf[2] < 9)
378 |                 iCompression = COMPTYPE_NONE;
379 |             else
380 |                 iCompression = COMPTYPE_RLE;
381 |             break;
382 |         case FILETYPE_PPM:
383 |             if (cBuf[1] == '4')
384 |                 iBpp = 1;
385 |             else if (cBuf[1] == '5')
386 |                 iBpp = 8;
387 |             else if (cBuf[1] == '6')
388 |                 iBpp = 24;
389 |             j = 2;
390 |             while ((cBuf[j] == 0xa || cBuf[j] == 0xd) && j<DEFAULT_READ_SIZE)
391 |                 j++; // skip newline/cr
392 |             while (cBuf[j] == '#' && j < DEFAULT_READ_SIZE) // skip over comments
393 |             {
394 |                 while (cBuf[j] != 0xa && cBuf[j] != 0xd && j < DEFAULT_READ_SIZE)
395 |                     j++;
396 |                 while ((cBuf[j] == 0xa || cBuf[j] == 0xd) && j<DEFAULT_READ_SIZE)
397 |                     j++; // skip newline/cr
398 |             }
399 |             // get width and height
400 |             iWidth = ParseNumber(cBuf, &j, DEFAULT_READ_SIZE);
401 |             iHeight = ParseNumber(cBuf, &j, DEFAULT_READ_SIZE);
402 |             iCompression = COMPTYPE_NONE;
403 |             break;
404 |         case FILETYPE_BMP:
405 |             iCompression = COMPTYPE_NONE;
406 |             iWidth = INTELSHORT(&cBuf[18]);
407 |             iHeight = INTELSHORT(&cBuf[22]);
408 |             if (iHeight & 0x8000) // upside down
409 |                 iHeight = 65536 - iHeight;
410 |             iBpp = cBuf[28]; /* Number of bits per plane */
411 |             iBpp *= cBuf[26]; /* Number of planes */
412 |             *iDataOff = cBuf[10]; // OffBits
413 |             iDataSize = iFileSize - *iDataOff;
414 |             if (cBuf[30] && (iBpp == 4 || iBpp == 8)) // if biCompression is non-zero (2=4bit rle, 1=8bit rle,4=24bit rle)
415 |                 iCompression = COMPTYPE_RLE; // windows run-length
416 |             break;
417 |         case FILETYPE_OS2BMP:
418 |             iCompression = COMPTYPE_NONE;
419 |             if (cBuf[14] == 12) // version 1.2
420 |             {
421 |                 iWidth = INTELSHORT(&cBuf[18]);
422 |                 iHeight = INTELSHORT(&cBuf[20]);
423 |                 iBpp = cBuf[22]; /* Number of bits per plane */
424 |                 iBpp *= cBuf[24]; /* Number of planes */
425 |             }
426 |             else
427 |             {
428 |                 iWidth = INTELSHORT(&cBuf[18]);
429 |                 iHeight = INTELSHORT(&cBuf[22]);
430 |                 iBpp = cBuf[28]; /* Number of bits per plane */
431 |                 iBpp *= cBuf[26]; /* Number of planes */
432 |             }
433 |             if (iHeight & 0x8000) // upside down
434 |                 iHeight = 65536 - iHeight;
435 |             if (cBuf[30] == 1 || cBuf[30] == 2 || cBuf[30] == 4) // if biCompression is non-zero (2=4bit rle, 1=8bit rle,4=24bit rle)
436 |                 iCompression = COMPTYPE_RLE; // windows run-length
437 |             break;
438 |         case FILETYPE_JEDMICS:
439 |             iBpp = 1;
440 |             iWidth = INTELSHORT(&cBuf[6]);
441 |             iWidth <<= 3; // convert byte width to pixel width
442 |             iHeight = INTELSHORT(&cBuf[4]);
443 |             iCompression = COMPTYPE_G4;
444 |             break;
445 |         case FILETYPE_CALS:
446 |             iBpp = 1;
447 |             iCompression = COMPTYPE_G4;
448 |             fseek(iHandle, 750, SEEK_SET); // read some more
449 |             iBytes = fread(cBuf, 1, 1, iHandle);
450 |             if (cBuf[0] == '1') // type 1 file
451 |             {
452 |                 fseek(iHandle, 1033, SEEK_SET); // read some more
453 |                 iBytes = fread(cBuf, 1, 256, iHandle);
454 |                 i = 0;
455 |                 iWidth = ParseNumber(cBuf, &i, 256);
456 |                 iHeight = ParseNumber(cBuf, &i, 256);
457 |             }
458 |             else // type 2
459 |             {
460 |                 fseek(iHandle, 1024, SEEK_SET); // read some more
461 |                 iBytes = fread(cBuf, 1, 128, iHandle);
462 |                 if (MOTOLONG(cBuf) == 0x7270656c && MOTOLONG(&cBuf[4]) == 0x636e743a) // "rpelcnt:"
463 |                 {
464 |                     i = 9;
465 |                     iWidth = ParseNumber(cBuf, &i, 256);
466 |                     iHeight = ParseNumber(cBuf, &i, 256);
467 |                 }
468 |             }
469 |             break;
470 |         case FILETYPE_JPEG:
471 |             iCompression = COMPTYPE_JPEG;
472 |             i = j = 2; /* Start at offset of first marker */
473 |             iMarker = 0; /* Search for SOF (start of frame) marker */
474 |             while (i < 32 && iMarker != 0xffc0 && j < iFileSize)
475 |             {
476 |                 iMarker = MOTOSHORT(&cBuf[i]) & 0xfffc;
477 |                 if (iMarker < 0xff00) // invalid marker, could be generated by "Arles Image Web Page Creator" or Accusoft
478 |                 {
479 |                     i += 2;
480 |                     continue; // skip 2 bytes and try to resync
481 |                 }
482 |                 if (iMarker == 0xffe0 && cBuf[i+4] == 'E' && cBuf[i+5] == 'x') // EXIF, check for thumbnail
483 |                 {
484 |                     unsigned char cTemp[1024];
485 |                     //               int iOff;
486 |                     memcpy(cTemp, cBuf, 32);
487 |                     iBytes = fread(&cTemp[32], 1, 1024-32, iHandle);
488 |                     bMotorola = (cTemp[i+10] == 'M');
489 |                     // Future - do something with the thumbnail
490 |                     //               iOff = PILTIFFLONG(&cTemp[i+14], bMotorola); // get offset to first IFD (info)
491 |                     //               PILTIFFMiniInfo(pFile, bMotorola, j + 10 + iOff, TRUE);
492 |                 }
493 |                 if (iMarker == 0xffc0) // the one we're looking for
494 |                     break;
495 |                 j += 2 + MOTOSHORT(&cBuf[i+2]); /* Skip to next marker */
496 |                 if (j < iFileSize) // need to read more
497 |                 {
498 |                     fseek(iHandle, j, SEEK_SET); // read some more
499 |                     iBytes = fread(cBuf, 1, 32, iHandle);
500 |                     i = 0;
501 |                 }
502 |             } // while
503 |             if (iMarker != 0xffc0)
504 |                 return -1; // error - invalid file?
505 |             else
506 |             {
507 |                 iBpp = cBuf[i+4]; // bits per sample
508 |                 iHeight = MOTOSHORT(&cBuf[i+5]);
509 |                 iWidth = MOTOSHORT(&cBuf[i+7]);
510 |                 iBpp = iBpp * cBuf[i+9]; /* Bpp = number of components * bits per sample */
511 |                 ucSubSample = cBuf[i+11];
512 |                 sprintf(szOptions, ", color subsampling = %d:%d", (ucSubSample>>4),(ucSubSample & 0xf));
513 |             }
514 |             break;
515 |         case FILETYPE_GIF:
516 |             iCompression = COMPTYPE_LZW;
517 |             iWidth = INTELSHORT(&cBuf[6]);
518 |             iHeight = INTELSHORT(&cBuf[8]);
519 |             iBpp = (cBuf[10] & 7) + 1;
520 |             if (cBuf[10] & 64) // interlace flag
521 |                 strcpy(szOptions, ", Interlaced");
522 |             else
523 |                 strcpy(szOptions, ", Not interlaced");
524 |             break;
525 |         case FILETYPE_TIFF:
526 |             bMotorola = (cBuf[0] == 'M'); // determine endianness of TIFF data
527 |             i = TIFFLONG(&cBuf[4], bMotorola); // get first IFD offset
528 |             fseek(iHandle, i, SEEK_SET);// read the entire tag directory
529 |             iBytes = fread(cBuf, 1, MAX_TAGS*TIFF_TAGSIZE, iHandle);
530 |             j = TIFFSHORT(cBuf, bMotorola); // get the tag count
531 |             iOffset = 2; // point to start of TIFF tag directory
532 |             // Some TIFF files don't specify everything, so set up some default values
533 |             iBpp = 1;
534 |             iPlanar = 1;
535 |             iCompression = COMPTYPE_NONE;
536 |             iPhotoMetric = 7; // if not specified, set to "unknown"
537 |             // Each TIFF tag is made up of 12 bytes
538 |             // byte 0-1: Tag value (short)
539 |             // byte 2-3: data type (short)
540 |             // byte 4-7: number of values (long)
541 |             // byte 8-11: value or offset to list of values
542 |             for (i=0; i<j; i++) // search tags for the info we care about
543 |         {
544 |             iMarker = TIFFSHORT(&cBuf[iOffset], bMotorola); // get the TIFF tag
545 |             switch (iMarker) // only read the tags we care about...
546 |             {
547 |                 case 256: // image width
548 |                     iWidth = TIFFVALUE(&cBuf[iOffset], bMotorola);
549 |                     break;
550 |                 case 257: // image length
551 |                     iHeight = TIFFVALUE(&cBuf[iOffset], bMotorola);
552 |                     break;
553 |                 case 258: // bits per sample
554 |                     iCount = TIFFLONG(&cBuf[iOffset+4], bMotorola); /* Get the count */
555 |                     if (iCount == 1)
556 |                         iBpp = TIFFVALUE(&cBuf[iOffset], bMotorola);
557 |                     else // need to read the first value from the list (they should all be equal)
558 |                     {
559 |                         k = TIFFLONG(&cBuf[iOffset+8], bMotorola);
560 |                         if (k < iFileSize)
561 |                         {
562 |                             fseek(iHandle, k, SEEK_SET);
563 |                             iBytes = fread(&cBuf[iOffset], 1, 2, iHandle); // okay to overwrite the value we just used
564 |                             iBpp = iCount * TIFFSHORT(&cBuf[iOffset], bMotorola);
565 |                         }
566 |                     }
567 |                     break;
568 |                 case 259: // compression
569 |                     k = TIFFVALUE(&cBuf[iOffset], bMotorola);
570 |                     if (k == 1)
571 |                         iCompression = COMPTYPE_NONE;
572 |                     else if (k == 2)
573 |                         iCompression = COMPTYPE_HUFFMAN;
574 |                     else if (k == 3)
575 |                         iCompression = COMPTYPE_G3;
576 |                     else if (k == 4)
577 |                         iCompression = COMPTYPE_G4;
578 |                     else if (k == 5)
579 |                         iCompression = COMPTYPE_LZW;
580 |                     else if (k == 6 || k == 7)
581 |                         iCompression = COMPTYPE_JPEG;
582 |                     else if (k == 8 || k == 32946)
583 |                         iCompression = COMPTYPE_FLATE;
584 |                     else if (k == 9)
585 |                         iCompression = COMPTYPE_JBIG;
586 |                     else if (k == 32773)
587 |                         iCompression = COMPTYPE_PACKBITS;
588 |                     else if (k == 32809)
589 |                         iCompression = COMPTYPE_THUNDERSCAN;
590 |                     else
591 |                         iCompression = COMPTYPE_UNKNOWN;
592 |                     break;
593 |                 case 262: // photometric value
594 |                     iPhotoMetric = TIFFVALUE(&cBuf[iOffset], bMotorola);
595 |                     if (iPhotoMetric > 6)
596 |                         iPhotoMetric = 7; // unknown
597 |                     break;
598 |                 case 273: // strip offsets
599 |                     *iDataOff = TIFFVALUE(&cBuf[iOffset], bMotorola);
600 |                     break;
601 |                 case 279: // strip byte counts
602 |                     iDataSize = TIFFVALUE(&cBuf[iOffset], bMotorola);
603 |                     break;
604 |                 case 284: // planar/chunky
605 |                     iPlanar = TIFFVALUE(&cBuf[iOffset], bMotorola);
606 |                     if (iPlanar < 1 || iPlanar > 2) // unknown value
607 |                         iPlanar = 0; // unknown
608 |                     break;
609 |             } // switch on tiff tag
610 |             iOffset += TIFF_TAGSIZE;
611 |         } // for each tag
612 | //            sprintf(szOptions, ", Photometric = %s, Planar config = %s", szPhotometric[iPhotoMetric], szPlanar[iPlanar]);
613 | //            break;
614 |     } // switch
615 |     sprintf(szInfo, "// %s, Compression=%s, Size: %d x %d, %d-Bpp\n", szType[iFileType], szComp[iCompression], iWidth, iHeight, iBpp);
616 |     if (iFileType == FILETYPE_GIF) // see how many frames it has
617 |     {
618 |         // slight hack - load the file into memory
619 |         uint8_t *pFile;
620 |         char szTemp[32];
621 |         int iFrames;
622 |         pFile = malloc(iFileSize);
623 |         if (pFile != NULL)
624 |         {
625 |             fseek(iHandle, 0, SEEK_SET);
626 |             fread(pFile, 1, iFileSize, iHandle);
627 |             iFrames = CountGIFFrames(pFile, iFileSize);
628 |             free(pFile);
629 |             sprintf(szTemp, "// %d frames\n//\n", iFrames);
630 |             strcat(szInfo, szTemp);
631 |         }
632 |     }
633 |     else
634 |     {
635 |         strcat(szInfo, "//\n"); // simple end of comment
636 |     }
637 |     return iDataSize;
638 | } /* ImageInfo() */
639 | //
640 | // Main program entry point
641 | //
642 | int main(int argc, char *argv[])
643 | {
644 |     int iSize, iData;
645 |     int bStrip = 0;
646 |     unsigned char *p;
647 |     int iStart = 1; // starting parameter for input name
648 |     int iDataOff, iDataSize;
649 |     char szLeaf[256];
650 |     char szInfo[256];
651 |     
652 |     if (argc != 2 && argc != 3)
653 |     {
654 |         printf("image_to_c Copyright (c) 2020 BitBank Software, Inc.\n");
655 |         printf("Written by Larry Bank\n\n");
656 |         printf("Usage: image_to_c <option> <filename>\n");
657 |         printf("output is written to stdout\n");
658 |         printf("example:\n\n");
659 |         printf("image_to_c ./test.jpg > test.h\n");
660 |         printf("image_to_c --strip ./test.tif > test.h\n");
661 |         printf("--strip = remove all metadata and just save the compressed image\n");
662 |         printf("This option is only available for TIFF & BMP files (for now)\n");
663 |         return 0; // no filename passed
664 |     }
665 |     if (strcmp(argv[1], "--strip") == 0) {
666 |        iStart++;
667 |        bStrip = 1;
668 |     }
669 |     ihandle = fopen(argv[iStart],"rb"); // open input file
670 |     if (ihandle == NULL)
671 |     {
672 |         fprintf(stderr, "Unable to open file: %s\n", argv[iStart]);
673 |         return -1; // bad filename passed
674 |     }
675 |     
676 |     fseek(ihandle, 0L, SEEK_END); // get the file size
677 |     iSize = (int)ftell(ihandle);
678 |     fseek(ihandle, 0, SEEK_SET);
679 |     iDataSize = ImageInfo(ihandle, iSize, szInfo, &iDataOff); // get image info
680 |     p = (unsigned char *)malloc(0x10000); // allocate 64k to play with
681 |     GetLeafName(argv[iStart], szLeaf);
682 |     printf("// Created with image_to_c\n// https://github.com/bitbank2/image_to_c\n");
683 |     if (bStrip && iDataOff != iDataSize) {
684 |        iStart = iDataOff;
685 |        printf("//\n// This hex data is only the image; the header + metadata has been removed\n");
686 |        printf("// %s\n// File size = %d bytes, this data = %d bytes\n//\n", szLeaf, iSize, iDataSize); 
687 |     } else {
688 |        bStrip = 0; // disable stripping if not possible to use it
689 |        printf("//\n// %s\n// Data size = %d bytes\n//\n", szLeaf, iSize); // comment header with filename
690 |     }
691 |     if (szInfo[0])
692 |         printf("%s", szInfo);
693 |     FixName(szLeaf); // remove unusable characters
694 |     printf("// for non-Arduino builds...\n");
695 |     printf("#ifndef PROGMEM\n#define PROGMEM\n#endif\n");
696 |     printf("const uint8_t %s[] PROGMEM = {\n", szLeaf); // start of data array
697 |     if (bStrip) {
698 |        int iLen;
699 |        fseek(ihandle, iDataOff, SEEK_SET);
700 |        while (iDataSize)
701 |        {
702 |            iLen = 0x10000;
703 |            if (iLen > iDataSize) iLen = iDataSize;
704 |            iData = fread(p, 1, iLen, ihandle); // try to read 64k
705 |            MakeC(p, iData, iDataSize == iData); // create the output data
706 |            iDataSize -= iData;
707 |        }
708 |     } else {
709 |        fseek(ihandle, 0, SEEK_SET);
710 |        while (iSize)
711 |        {
712 |            iData = fread(p, 1, 0x10000, ihandle); // try to read 64k
713 |            MakeC(p, iData, iSize == iData); // create the output data
714 |            iSize -= iData;
715 |        }
716 |     } // bStrip
717 |     free(p);
718 |     fclose(ihandle);
719 |     printf("};\n"); // final closing brace
720 |     return 0;
721 | } /* main() */
722 | //
723 | // Generate C hex characters from each byte of file data
724 | //
725 | void MakeC(unsigned char *p, int iLen, int bLast)
726 | {
727 |     int i, j, iCount;
728 |     char szTemp[256], szOut[256];
729 |     
730 |     iCount = 0;
731 |     for (i=0; i<iLen>>4; i++) // do lines of 16 bytes
732 |     {
733 |         strcpy(szOut, "\t");
734 |         for (j=0; j<16; j++)
735 |         {
736 |             if (iCount == iLen-1 && bLast) // last one, skip the comma
737 |                 sprintf(szTemp, "0x%02x", p[(i*16)+j]);
738 |             else
739 |                 sprintf(szTemp, "0x%02x,", p[(i*16)+j]);
740 |             strcat(szOut, szTemp);
741 |             iCount++;
742 |         }
743 |         if (!bLast || iCount != iLen)
744 |             strcat(szOut, "\n");
745 |         printf("%s",szOut);
746 |     }
747 |     p += (iLen & 0xfff0); // point to last section
748 |     if (iLen & 0xf) // any remaining characters?
749 |     {
750 |         strcpy(szOut, "\t");
751 |         for (j=0; j<(iLen & 0xf); j++)
752 |         {
753 |             if (iCount == iLen-1 && bLast)
754 |                 sprintf(szTemp, "0x%02x", p[j]);
755 |             else
756 |                 sprintf(szTemp, "0x%02x,", p[j]);
757 |             strcat(szOut, szTemp);
758 |             iCount++;
759 |         }
760 |         if (!bLast)
761 |             strcat(szOut, "\n");
762 |         printf("%s",szOut);
763 |     }
764 | } /* MakeC() */
765 | //
766 | // Make sure the name can be used in C/C++ as a variable
767 | // replace invalid characters and make sure it starts with a letter
768 | //
769 | void FixName(char *name)
770 | {
771 |     char c, *d, *s, szTemp[256];
772 |     int i, iLen;
773 |     
774 |     iLen = strlen(name);
775 |     d = szTemp;
776 |     s = name;
777 |     if (s[0] >= '0' && s[0] <= '9') // starts with a digit
778 |         *d++ = '_'; // Insert an underscore
779 |     for (i=0; i<iLen; i++)
780 |     {
781 |         c = *s++;
782 |         // these characters can't be in a variable name
783 |         if (c < ' ' || (c >= '!' && c < '0') || (c > 'Z' && c < 'a'))
784 |             c = '_'; // convert all to an underscore
785 |         *d++ = c;
786 |     }
787 |     *d++ = 0;
788 |     strcpy(name, szTemp);
789 | } /* FixName() */
790 | //
791 | // Trim off the leaf name from a fully
792 | // formed file pathname
793 | //
794 | void GetLeafName(char *fname, char *leaf)
795 | {
796 |     int i, iLen;
797 |     
798 |     iLen = strlen(fname);
799 |     for (i=iLen-1; i>=0; i--)
800 |     {
801 |         if (fname[i] == '\\' || fname[i] == '/') // Windows or Linux
802 |             break;
803 |     }
804 |     strcpy(leaf, &fname[i+1]);
805 |     // remove the filename extension
806 |     iLen = strlen(leaf);
807 |     for (i=iLen-1; i>=0; i--)
808 |     {
809 |         if (leaf[i] == '.')
810 |         {
811 |             leaf[i] = 0;
812 |             break;
813 |         }
814 |     }
815 | } /* GetLeafName() */
816 | 
817 | 


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