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Imported from pngcrush-1.3.3.tar

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This commit is contained in:
Glenn Randers-Pehrson
2000-01-12 22:56:38 -06:00
parent c3e8db9e59
commit 10ecaa7a20
22 changed files with 509 additions and 107 deletions
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68
pngcrush.c
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@@ -15,7 +15,7 @@
* occasionally creating Linux executables.
*/
#define PNGCRUSH_VERSION "1.3.2"
#define PNGCRUSH_VERSION "1.3.3"
/*
* COPYRIGHT NOTICE, DISCLAIMER, AND LICENSE:
@@ -54,6 +54,11 @@
*
* Change log:
*
* Version 1.3.3 (built with libpng-1.0.5m)
*
* Restored ability to enter gamma as a float even when floating point
* arithmetic is not enabled.
*
* Version 1.3.2 (built with libpng-1.0.5k)
*
* Renamed "dirname" to "directory_name" to avoid conflict with "dirname"
@@ -741,7 +746,30 @@ main(int argc, char *argv[])
{
names++;
i++;
if (intent < 0) specified_gamma=atoi(argv[i]);
if (intent < 0)
{
int c;
char number[16];
char *n=number;
int nzeroes=-1;
int length=strlen(argv[i]);
for (c=0; c<length; c++)
{
if( *(argv[i]+c) == '.')
{
nzeroes=5;
}
else if (nzeroes != 0)
{
*n++=*(argv[i]+c);
nzeroes--;
}
}
for (c=0; c<nzeroes; c++)
*n++='0';
*n='\0';
specified_gamma=atoi(number);
}
}
#endif
else if(!strncmp(argv[i],"-h",2))
@@ -852,7 +880,6 @@ main(int argc, char *argv[])
{
text_compression[text_inputs] = PNG_ITXT_COMPRESSION_NONE;
names+=2;
printf("Adding an iTXt chunk.\n");
}
names+=3;
if( !strncmp(argv[++i],"b",1))
@@ -1043,7 +1070,7 @@ main(int argc, char *argv[])
else
fprintf(STDERR, "options:\n");
fprintf(STDERR,
" -brute (Use brute-force, try 114 different methods)\n");
" -brute (Use brute-force, try 114 different methods [11-124])\n");
if(verbose > 1)
{
fprintf(STDERR,
@@ -1131,7 +1158,7 @@ main(int argc, char *argv[])
" additions, removals, or changes were requested.\n\n");
}
fprintf(STDERR,
" -g gamma_value (float, e.g., 0.45455)\n");
" -g gamma (float or fixed*100000, e.g., 0.45455 or 45455)\n");
if(verbose > 1)
fprintf(STDERR,
"\n Value to insert in gAMA chunk, only if the input\n");
@@ -1143,7 +1170,7 @@ main(int argc, char *argv[])
" gAMA chunk, use the '-replace_gamma' option.\n\n");
png_crush_pause();
fprintf(STDERR,
" -itxt b[efore_IDAT]|a[fter_IDAT] \"keyword\" \"text\"\n");
" -itxt b[efore_IDAT]|a[fter_IDAT] \"keyword\" \"text\"\n");
if(verbose > 1)
fprintf(STDERR,
"\n Compressed iTXt chunk to insert (see -text).\n\n");
@@ -1296,10 +1323,14 @@ main(int argc, char *argv[])
}
fprintf(STDERR,
" -verbose (write more detailed information)\n");
" -v (display more detailed information)\n");
if(verbose > 1)
fprintf(STDERR,
"\n Repeat the option (use \"-v -v\") for even more.\n\n");
fprintf(STDERR,
" -version (display the pngcrush version)\n");
if(verbose > 1)
fprintf(STDERR,"\n");
fprintf(STDERR,
" -w compression_window_size [32, 16, 8, 4, 2, 1, 512]\n");
if(verbose > 1)
@@ -1324,7 +1355,7 @@ main(int argc, char *argv[])
" '-m method' argument.\n\n");
}
fprintf(STDERR,
" -zitxt b[efore_IDAT]|a[fter_IDAT] \"keyword\" \"text\"\n");
" -zitxt b[efore_IDAT]|a[fter_IDAT] \"keyword\" \"text\"\n");
if(verbose > 1)
fprintf(STDERR,
"\n Compressed iTXt chunk to insert (see -text).\n\n");
@@ -2382,13 +2413,13 @@ main(int argc, char *argv[])
png_set_text(write_ptr, write_info_ptr, added_text, 1);
png_free(write_ptr,added_text);
if(added_text[0].compression < 0)
printf("Added a tEXt chunk.\n");
printf(" Added a tEXt chunk.\n");
else if(added_text[0].compression == 0)
printf("Added a zTXt chunk.\n");
printf(" Added a zTXt chunk.\n");
else if(added_text[0].compression == 1)
printf("Added an uncompressed iTXt chunk.\n");
printf(" Added an uncompressed iTXt chunk.\n");
else
printf("Added a compressed iTXt chunk.\n");
printf(" Added a compressed iTXt chunk.\n");
}
}
}
@@ -2453,8 +2484,8 @@ main(int argc, char *argv[])
if(output_bit_depth < input_bit_depth)
{
png_color_8 true_bits;
write_ptr->bit_depth=output_bit_depth;
true_bits.gray = 8 - (input_bit_depth - output_bit_depth);
write_ptr->bit_depth=(png_byte)output_bit_depth;
true_bits.gray = (png_byte)(8 - (input_bit_depth - output_bit_depth));
png_set_shift(read_ptr, &true_bits);
png_set_packing(write_ptr);
}
@@ -2626,13 +2657,14 @@ main(int argc, char *argv[])
png_set_text(write_ptr, write_end_info_ptr, added_text, 1);
png_free(write_ptr,added_text);
if(added_text[0].compression < 0)
printf("Added a tEXt chunk after IDAT.\n");
printf(" Added a tEXt chunk after IDAT.\n");
else if(added_text[0].compression == 0)
printf("Added a zTXt chunk after IDAT.\n");
printf(" Added a zTXt chunk after IDAT.\n");
else if(added_text[0].compression == 1)
printf("Added an uncompressed iTXt chunk after IDAT.\n");
printf(
" Added an uncompressed iTXt chunk after IDAT.\n");
else
printf("Added a compressed iTXt chunk after IDAT.\n");
printf(" Added a compressed iTXt chunk after IDAT.\n");
}
}
}