// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
-// Flasher frontend tool
+// Compression tool for FPGA config files. Compress several *.bit files at
+// compile time. Decompression is done at run time (see fpgaloader.c).
+// This uses the zlib library tuned to this specific case. The small file sizes
+// allow to use "insane" parameters for optimum compression ratio.
//-----------------------------------------------------------------------------
#include <stdio.h>
// zlib configuration
#define COMPRESS_LEVEL 9 // use best possible compression
-#define COMPRESS_WINDOW_BITS 15 // default = 15 for a window of 2^15 = 32KBytes
-#define COMPRESS_MEM_LEVEL 9 // determines the amount of memory allocated during compression. Default = 8. Must be < 9
+#define COMPRESS_WINDOW_BITS 15 // default = max = 15 for a window of 2^15 = 32KBytes
+#define COMPRESS_MEM_LEVEL 9 // determines the amount of memory allocated during compression. Default = 8.
/* COMPRESS_STRATEGY can be
Z_DEFAULT_STRATEGY (the default),
Z_FILTERED (more huffmann, less string matching),
#define FPGA_INTERLEAVE_SIZE 288 // (the FPGA's internal config frame size is 288 bits. Interleaving with 288 bytes should give best compression)
#define FPGA_CONFIG_SIZE 42336 // our current fpga_[lh]f.bit files are 42175 bytes. Rounded up to next multiple of FPGA_INTERLEAVE_SIZE
-static void usage(char *argv0)
+static void usage(void)
{
- fprintf(stderr, "Usage: %s <infile1> <infile2> ... <infile_n> <outfile>\n\n", argv0);
- fprintf(stderr, "Combines n FPGA bitstream files and compresses them into one.\n\n");
+ fprintf(stderr, "Usage: fpga_compress <infile1> <infile2> ... <infile_n> <outfile>\n");
+ fprintf(stderr, " Combine n FPGA bitstream files and compress them into one.\n\n");
+ fprintf(stderr, " fpga_compress -d <infile> <outfile>");
+ fprintf(stderr, " Decompress <infile>. Write result to <outfile>");
}
fpga_config = malloc(num_infiles * FPGA_CONFIG_SIZE);
- // read the input files interleaving into fpga_config[]
+ // read the input files. Interleave them into fpga_config[]
i = 0;
do {
for(uint16_t j = 0; j < num_infiles; j++) {
}
if (i > num_infiles * FPGA_CONFIG_SIZE) {
- fprintf(stderr, "Input files too big (total of %ld > %d bytes). These are probably not PM3 FPGA config files.", i, num_infiles*FPGA_CONFIG_SIZE);
+ fprintf(stderr, "Input files too big (total > %lu bytes). These are probably not PM3 FPGA config files.", num_infiles*FPGA_CONFIG_SIZE);
for(uint16_t j = 0; j < num_infiles; j++) {
fclose(infile[j]);
}
}
} while (!all_feof(infile, num_infiles));
- fprintf(stderr, "Read a total of %ld bytes from %d files\n", i, num_infiles);
-
// initialize zlib structures
compressed_fpga_stream.next_in = fpga_config;
compressed_fpga_stream.avail_in = i;
uint8_t *outbuf = malloc(outsize_max);
compressed_fpga_stream.next_out = outbuf;
compressed_fpga_stream.avail_out = outsize_max;
-
if (ret == Z_OK) {
ret = deflateTune(&compressed_fpga_stream,
ret = deflate(&compressed_fpga_stream, Z_FINISH);
}
- fprintf(stderr, "\ncompressed %d input bytes to %d output bytes\n", i, compressed_fpga_stream.total_out);
+ fprintf(stderr, "compressed %lu input bytes to %lu output bytes\n", i, compressed_fpga_stream.total_out);
if (ret != Z_STREAM_END) {
fprintf(stderr, "Error in deflate(): %d %s\n", ret, compressed_fpga_stream.msg);
int ret;
z_stream compressed_fpga_stream;
+
// initialize zlib structures
compressed_fpga_stream.next_in = inbuf;
compressed_fpga_stream.avail_in = 0;
FILE *outfile;
if (argc == 1 || argc == 2) {
- usage(argv[0]);
+ usage();
return -1;
}
- if (!strcmp(argv[1], "-d")) {
+ if (!strcmp(argv[1], "-d")) { // Decompress
infiles = calloc(1, sizeof(FILE*));
if (argc != 4) {
- usage(argv[0]);
+ usage();
return -1;
}
infiles[0] = fopen(argv[2], "rb");
return -1;
}
return zlib_decompress(infiles[0], outfile);
- }
-
- infiles = calloc(argc-2, sizeof(FILE*));
-
- for (uint16_t i = 0; i < argc-2; i++) {
- infiles[i] = fopen(argv[i+1], "rb");
- if (infiles[i] == NULL) {
- fprintf(stderr, "Error. Cannot open input file %s", argv[i+1]);
+ } else { // Compress
+
+ infiles = calloc(argc-2, sizeof(FILE*));
+ for (uint16_t i = 0; i < argc-2; i++) {
+ infiles[i] = fopen(argv[i+1], "rb");
+ if (infiles[i] == NULL) {
+ fprintf(stderr, "Error. Cannot open input file %s", argv[i+1]);
+ return -1;
+ }
+ }
+ outfile = fopen(argv[argc-1], "wb");
+ if (outfile == NULL) {
+ fprintf(stderr, "Error. Cannot open output file %s", argv[argc-1]);
return -1;
}
+ return zlib_compress(infiles, argc-2, outfile);
}
-
- outfile = fopen(argv[argc-1], "wb");
- if (outfile == NULL) {
- fprintf(stderr, "Error. Cannot open output file %s", argv[argc-1]);
- return -1;
- }
-
- return zlib_compress(infiles, argc-2, outfile);
}
projects / proxmark3-svn / blobdiff