1 files changed, 584 insertions, 0 deletions

diff --git a/apps/bmp.c b/apps/bmp.c
new file mode 100644
index 0000000000..828f855295
--- /dev/null
+++ b/apps/bmp.c
@@ -0,0 +1,584 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Linus Nielsen Feltzing
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+/*********************************************************************
+ *
+ * Converts BMP files to Rockbox bitmap format
+ *
+ * 1999-05-03 Linus Nielsen Feltzing
+ *
+ **********************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+
+#include "file.h"
+
+#ifdef __GNUC__
+#define STRUCT_PACKED __attribute__((packed))
+#endif
+
+struct Fileheader
+{
+  unsigned short Type;          /* signature - 'BM' */
+  unsigned  long Size;          /* file size in bytes */
+  unsigned short Reserved1;     /* 0 */
+  unsigned short Reserved2;     /* 0 */
+  unsigned long  OffBits;       /* offset to bitmap */
+  unsigned long  StructSize;    /* size of this struct (40) */
+  unsigned long  Width;         /* bmap width in pixels */
+  unsigned long  Height;        /* bmap height in pixels */
+  unsigned short Planes;        /* num planes - always 1 */
+  unsigned short BitCount;      /* bits per pixel */
+  unsigned long  Compression;   /* compression flag */
+  unsigned long  SizeImage;     /* image size in bytes */
+  long           XPelsPerMeter; /* horz resolution */
+  long           YPelsPerMeter; /* vert resolution */
+  unsigned long  ClrUsed;       /* 0 -> color table size */
+  unsigned long  ClrImportant;  /* important color count */
+} STRUCT_PACKED;
+
+struct RGBQUAD
+{
+  unsigned char rgbBlue;
+  unsigned char rgbGreen;
+  unsigned char rgbRed;
+  unsigned char rgbReserved;
+} STRUCT_PACKED;
+
+static struct Fileheader fh;
+static unsigned char* bmp;
+static struct RGBQUAD palette[2]; /* two colors only */
+
+static unsigned int bitmap_width, bitmap_height;
+static unsigned char *bitmap;
+
+#ifdef STANDALONE
+static id_str[256];
+static bool compress = false;
+static bool assembly = false;
+static unsigned char* converted_bmp;
+static unsigned char* compressed_bmp;
+static unsigned int width;
+static unsigned int converted_size;
+static unsigned int compressed_size;
+static unsigned int rounded_width;
+#endif
+
+#ifdef LITTLE_ENDIAN
+#define readshort(x) x
+#define readlong(x) x
+#else
+
+#define readshort(x) (((x&0xff00)>>8)|((x&0x00ff)<<8))
+#define readlong(x) (((x&0xff000000)>>24)| \
+                     ((x&0x00ff0000)>>8) | \
+                     ((x&0x0000ff00)<<8) | \
+                     ((x&0x000000ff)<<24))
+#endif
+
+/*********************************************************************
+ * read_bmp_file()
+ *
+ * Reads a monochrome BMP file and puts the data in a 1-pixel-per-byte
+ * array. Returns 0 on success.
+ *
+ **********************************************/
+int read_bmp_file(char* filename,
+                  int *get_width,  /* in pixels */
+                  int *get_height, /* in pixels */
+                  char *bitmap)
+{
+   long PaddedWidth;
+   int background;
+   int fd = open(filename, O_RDONLY);
+   long size;
+   unsigned int row, col, byte, bit;
+   int l;
+   unsigned char *bmp;
+   int width;
+   int height;
+
+   if(fd == -1)
+   {
+      debugf("error - can't open '%s'\n", filename);
+      return 1;
+   }
+   else
+   {
+     if(read(fd, &fh, sizeof(struct Fileheader)) !=
+        sizeof(struct Fileheader))
+      {
+        debugf("error - can't Read Fileheader Stucture\n");
+        close(fd);
+        return 2;
+      }
+
+      /* Exit if not monochrome */
+      if(readshort(fh.BitCount) > 8)
+      {
+        debugf("error - Bitmap must be less than 8, got %d\n",
+               readshort(fh.BitCount));
+        close(fd);
+        return 2;
+      }
+
+      /* Exit if too wide */
+      if(readlong(fh.Width) > 112)
+      {
+        debugf("error - Bitmap is too wide (%d pixels, max is 112)\n",
+               readlong(fh.Width));
+        close(fd);
+        return 3;
+      }
+      debugf("Bitmap is %d pixels wide\n", readlong(fh.Width));
+
+      /* Exit if too high */
+      if(readlong(fh.Height) > 64)
+      {
+        debugf("error - Bitmap is too high (%d pixels, max is 64)\n",
+               readlong(fh.Height));
+        close(fd);
+        return 4;
+      }
+      debugf("Bitmap is %d pixels heigh\n", readlong(fh.Height));
+
+      for(l=0;l < 2;l++)
+      {
+        if(read(fd, &palette[l],sizeof(struct RGBQUAD)) !=
+           sizeof(struct RGBQUAD))
+        {
+          debugf("error - Can't read bitmap's color palette\n");
+          close(fd);
+          return 5;
+        }
+      }
+      /* pass the other palettes */
+      lseek(fd, 254*sizeof(struct RGBQUAD), SEEK_CUR);
+
+      /* Try to guess the foreground and background colors.
+         We assume that the foreground color is the darkest. */
+      if(((int)palette[0].rgbRed +
+          (int)palette[0].rgbGreen +
+          (int)palette[0].rgbBlue) >
+          ((int)palette[1].rgbRed +
+          (int)palette[1].rgbGreen +
+          (int)palette[1].rgbBlue))
+      {
+         background = 0;
+      }
+      else
+      {
+         background = 1;
+      }
+
+      /*  width = readlong(fh.Width)*readshort(fh.BitCount); */
+
+      width = readlong(fh.Width);
+
+      /* PaddedWidth = ((width+31)&(~0x1f))/8; */
+      PaddedWidth = ((width+7)&(~0x7));
+      size = PaddedWidth*readlong(fh.Height);
+
+      bmp = (unsigned char *)malloc(size);
+
+      if(bmp == NULL)
+      {
+          debugf("error - Out of memory\n");
+          close(fd);
+          return 6;
+      }
+      else
+      {
+          if(read(fd, (unsigned char*)bmp,(long)size) != size) {
+              debugf("error - Can't read image\n");
+              close(fd);
+              return 7;
+          }
+      }
+
+      bitmap_height = readlong(fh.Height);
+      bitmap_width = readlong(fh.Width);
+
+      *get_width = bitmap_width;
+      *get_height = bitmap_height;
+
+#if 0
+      /* Now convert the bitmap into an array with 1 byte per pixel,
+        exactly the size of the image */
+      for(row = 0;row < bitmap_height;row++) {
+        bit = 7;
+        byte = 0;
+        for(col = 0;col < bitmap_width;col++) {
+          if((bmp[(bitmap_height - row - 1) * PaddedWidth + byte] &
+              (1 << bit))) {
+
+            bitmap[ (row/8) * bitmap_width + col ] |= 1<<(row&7);
+          }
+          else {
+            bitmap[ (row/8) * bitmap_width + col ] &= ~ 1<<(row&7);
+          }
+          if(bit) {
+            bit--;
+          }
+          else {
+            bit = 7;
+            byte++;
+          }
+        }
+      }
+#else
+      /* Now convert the bitmap into an array with 1 byte per pixel,
+         exactly the size of the image */
+
+      for(row = 0;row < bitmap_height;row++) {
+        for(col = 0;col < bitmap_width;col++) {
+          if(bmp[(bitmap_height-1 -row) * PaddedWidth + col]) {
+            bitmap[ (row/8) * bitmap_width + col ] &= ~ (1<<(row&7));
+          }
+          else {
+            bitmap[ (row/8) * bitmap_width + col ] |= 1<<(row&7);
+          }
+        }
+      }
+
+#endif
+   }
+   close(fd);
+   return 0; /* success */
+}
+
+#ifdef STANDALONE
+
+/*********************************************************************
+** read_next_converted_byte()
+**
+** Reads the next 6-pixel chunk from the 1-byte-per-pixel array,
+** padding the last byte with zeros if the size is not divisible by 6.
+**********************************************/
+unsigned char read_next_converted_byte(void)
+{
+   unsigned char dest;
+   unsigned int i;
+   static unsigned int row = 0, col = 0;
+
+   dest = 0;
+   for(i = 0;i < 6 && col < bitmap_width;i++,col++)
+   {
+      if(bitmap[row * bitmap_width + col])
+      {
+        dest |= (unsigned char)(1 << (5-i));
+      }
+   }
+
+   if(col >= bitmap_width)
+   {
+      col = 0;
+      row++;
+   }
+
+   return dest;
+}
+
+/*********************************************************************
+** convert_image()
+**
+** Converts the 1-byte-per-pixel array into a 6-pixel-per-byte array,
+** i.e the BMP_FORMAT_VANILLA format.
+**********************************************/
+void convert_image(void)
+{
+   int newsize;
+   unsigned int row, col;
+
+   rounded_width = fh.Width/6 + ((fh.Width%6)?1:0);
+   newsize = rounded_width * fh.Height;
+
+   converted_bmp = (unsigned char *)malloc(newsize);
+
+   for(row = 0;row < fh.Height;row++)
+   {
+      for(col = 0;col < rounded_width;col++)
+      {
+        converted_bmp[row * rounded_width + col] = read_next_converted_byte();
+      }
+   }
+   converted_size = rounded_width * fh.Height;
+}
+
+#define COMPRESSED_ZEROS_AHEAD 0x40
+#define COMPRESSED_ONES_AHEAD 0x80
+
+/*********************************************************************
+** compress_image()
+**
+** Compresses the BMP_FORMAT_VANILLA format with a simple RLE
+** algorithm. The output is in the BMP_FORMAT_RLE format.
+**********************************************/
+void compress_image(void)
+{
+   unsigned int i, j, count;
+   unsigned int index = 0;
+   unsigned char val;
+
+   compressed_bmp = (unsigned char *)malloc(converted_size);
+
+   for(i = 0;i < converted_size;i++)
+   {
+      val = converted_bmp[i];
+
+      if(val == 0|| val == 0x3f)
+      {
+        count = 0;
+        while(count < 0x4000 && (i + count) < converted_size &&
+              converted_bmp[i+count] == val)
+        {
+           count++;
+        }
+        if(count > 2)
+        {
+           compressed_bmp[index++] = (unsigned char)
+              (((val == 0)?COMPRESSED_ZEROS_AHEAD:COMPRESSED_ONES_AHEAD) |
+              (count >> 8));
+           compressed_bmp[index++] = (unsigned char)(count & 0xff);
+        }
+        else
+        {
+           for(j = 0;j < count;j++)
+           {
+              compressed_bmp[index++] = val;
+           }
+        }
+        i += count - 1;
+      }
+      else
+      {
+        compressed_bmp[index++] = val;
+      }
+   }
+
+   compressed_size = index;
+}
+
+/*********************************************************************
+** generate_c_source()
+**
+** Outputs a C source code with the converted/compressed bitmap in
+** an array, accompanied by some #define's
+**********************************************/
+void generate_c_source(char *id, BOOL compressed)
+{
+   FILE *f;
+   unsigned int i;
+   unsigned int size;
+   unsigned char *bmp;
+
+   size = compressed?compressed_size:converted_size;
+   bmp = compressed?compressed_bmp:converted_bmp;
+
+   f = stdout;
+
+   fprintf(f, "#define %s_WIDTH %d\n", id, rounded_width * 6);
+   fprintf(f, "#define %s_HEIGHT %d\n", id, fh.Height);
+   fprintf(f, "#define %s_SIZE %d\n", id, size + 6);
+   if(compressed)
+   {
+      fprintf(f, "#define %s_ORIGINAL_SIZE %d\n", id, converted_size);
+   }
+   fprintf(f, "#define %s_FORMAT %s\n", id,
+              compressed?"BMP_FORMAT_RLE":"BMP_FORMAT_VANILLA");
+   fprintf(f, "\nconst unsigned char bmpdata_%s[] = {", id);
+
+   /* Header */
+   fprintf(f, "\n    %s, 0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,",
+        compressed?"BMP_FORMAT_RLE":"BMP_FORMAT_VANILLA",
+        size >> 8, size & 0xff, 2, fh.Height, rounded_width * 6);
+
+   for(i = 0;i < size;i++)
+   {
+      if(i % 10 == 0)
+      {
+        fprintf(f, "\n    ");
+      }
+      fprintf(f, "0x%02x,", bmp[i]);
+   }
+   fprintf(f, "\n};");
+}
+
+/*********************************************************************
+** generate_asm_source()
+**
+** Outputs an ASM source code with the converted/compressed bitmap in
+** an array, the first 2 bytes describing the X and Y size
+**********************************************/
+void generate_asm_source(char *id, BOOL compressed)
+{
+   FILE *f;
+   unsigned int i;
+   unsigned int size;
+   unsigned char *bmp;
+
+   size = compressed?compressed_size:converted_size;
+   bmp = compressed?compressed_bmp:converted_bmp;
+
+   f = stdout;
+
+   fprintf(f, "bmpdata_%s:\n", id);
+   /* Header */
+   fprintf(f, "\n    db %s, %.2xh,%.2xh,%.2xh,%.2xh,%.2xh,",
+        compressed?"1":"0",
+        size >> 8, size & 0xff, 2, fh.Height, rounded_width * 6);
+
+   for(i = 0;i < size;i++)
+   {
+      if(i % 10 == 0)
+      {
+        fprintf(f, "\n   db ");
+      }
+      fprintf(f, "%.2xh,", bmp[i]);
+   }
+   fprintf(f, "\n");
+}
+
+void print_usage(void)
+{
+   printf("bmp2mt - Converts BMP files to MT Pro source code format\n");
+   printf("build date: " __DATE__ "\n\n");
+   printf("Usage: %s [-i <id>] [-c] [-a] <bitmap file>\n"
+   "-i <id>     Bitmap ID (default is filename without extension)\n"
+   "-c          Compress (BMP_FORMAT_RLE)\n"
+   "-f          Frexx Format!!!\n"
+   "-a          Assembly format source code\n", APPLICATION_NAME);
+}
+
+#pragma argsused
+int main(int argc, char **argv)
+{
+   char *bmp_filename = NULL;
+   char *id = NULL;
+   char errstr[80];
+   int i;
+
+   for(i = 1;i < argc;i++)
+   {
+      if(argv[i][0] == '-')
+      {
+        switch(argv[i][1])
+        {
+        case 'i':   /* ID */
+           if(argv[i][2])
+           {
+              id = &argv[i][2];
+           }
+           else if(argc > i+1)
+           {
+              id = argv[i+1];
+              i++;
+           }
+           else
+           {
+              print_usage();
+              exit(1);
+           }
+           break;
+
+        case 'c':   /* Compressed */
+           compress = true;
+           break;
+
+        case 'a':   /* Assembly */
+           assembly = true;
+           break;
+
+        default:
+           print_usage();
+           exit(1);
+           break;
+        }
+      }
+      else
+      {
+        if(!bmp_filename)
+        {
+           bmp_filename = argv[i];
+        }
+        else
+        {
+           print_usage();
+           exit(1);
+        }
+      }
+   }
+
+   if(!bmp_filename)
+   {
+      print_usage();
+      exit(1);
+   }
+
+   if(!id)
+   {
+      id = strdup(bmp_filename);
+
+      for(i = 0;id[i];i++)
+      {
+        if(id[i] == ' ')
+        {
+           id[i] = '_';
+        }
+        else if(id[i] == '.')
+        {
+           id[i] = '\0';
+           break;
+        }
+        else
+        {
+           id[i] = (char)toupper(id[i]);
+        }
+      }
+   }
+
+   read_bmp_file(bmp_filename);
+   convert_image();
+   if(fh.Width % 6)
+   {
+
+      sprintf(errstr, "warning - width is not divisible by 6 (%d), "
+                "padding with zeros to %d\n", fh.Width, rounded_width*6);
+      print_error(errstr, 0);
+   }
+
+   if(compress)
+   {
+      compress_image();
+   }
+
+   if(assembly)
+   {
+      generate_asm_source(id, compress);
+   }
+   else
+   {
+      generate_c_source(id, compress);
+   }
+   return 0;
+}
+
+#endif