diff options
Diffstat (limited to 'src/share/native/sun/awt/libpng/pngtest.c')
| -rw-r--r-- | src/share/native/sun/awt/libpng/pngtest.c | 1038 |
1 files changed, 626 insertions, 412 deletions
diff --git a/src/share/native/sun/awt/libpng/pngtest.c b/src/share/native/sun/awt/libpng/pngtest.c index 227181fbf..fdd51acd0 100644 --- a/src/share/native/sun/awt/libpng/pngtest.c +++ b/src/share/native/sun/awt/libpng/pngtest.c @@ -29,8 +29,8 @@ * However, the following notice accompanied the original version of this * file and, per its terms, should not be removed: * - * Last changed in libpng 1.5.4 [July 7, 2011] - * Copyright (c) 1998-2011 Glenn Randers-Pehrson + * Last changed in libpng 1.6.15 [November 20, 2014] + * Copyright (c) 1998-2014 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * @@ -61,16 +61,50 @@ #define _POSIX_SOURCE 1 -#include "zlib.h" +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +/* Defined so I can write to a file on gui/windowing platforms */ +/* #define STDERR stderr */ +#define STDERR stdout /* For DOS */ + #include "png.h" + +/* Known chunks that exist in pngtest.png must be supported or pngtest will fail + * simply as a result of re-ordering them. This may be fixed in 1.7 + * + * pngtest allocates a single row buffer for each row and overwrites it, + * therefore if the write side doesn't support the writing of interlaced images + * nothing can be done for an interlaced image (and the code below will fail + * horribly trying to write extra data after writing garbage). + */ +#if defined PNG_READ_SUPPORTED && /* else nothing can be done */\ + defined PNG_READ_bKGD_SUPPORTED &&\ + defined PNG_READ_cHRM_SUPPORTED &&\ + defined PNG_READ_gAMA_SUPPORTED &&\ + defined PNG_READ_oFFs_SUPPORTED &&\ + defined PNG_READ_pCAL_SUPPORTED &&\ + defined PNG_READ_pHYs_SUPPORTED &&\ + defined PNG_READ_sBIT_SUPPORTED &&\ + defined PNG_READ_sCAL_SUPPORTED &&\ + defined PNG_READ_sRGB_SUPPORTED &&\ + defined PNG_READ_tEXt_SUPPORTED &&\ + defined PNG_READ_tIME_SUPPORTED &&\ + defined PNG_READ_zTXt_SUPPORTED &&\ + defined PNG_WRITE_INTERLACING_SUPPORTED + +#ifdef PNG_ZLIB_HEADER +# include PNG_ZLIB_HEADER /* defined by pnglibconf.h from 1.7 */ +#else +# include "zlib.h" +#endif + /* Copied from pngpriv.h but only used in error messages below. */ #ifndef PNG_ZBUF_SIZE # define PNG_ZBUF_SIZE 8192 #endif -# include <stdio.h> -# include <stdlib.h> -# include <string.h> -# define FCLOSE(file) fclose(file) +#define FCLOSE(file) fclose(file) #ifndef PNG_STDIO_SUPPORTED typedef FILE * png_FILE_p; @@ -95,17 +129,6 @@ typedef FILE * png_FILE_p; # define SINGLE_ROWBUF_ALLOC /* Makes buffer overruns easier to nail */ #endif -/* The code uses memcmp and memcpy on large objects (typically row pointers) so - * it is necessary to do soemthing special on certain architectures, note that - * the actual support for this was effectively removed in 1.4, so only the - * memory remains in this program: - */ -#define CVT_PTR(ptr) (ptr) -#define CVT_PTR_NOCHECK(ptr) (ptr) -#define png_memcmp memcmp -#define png_memcpy memcpy -#define png_memset memset - /* Turn on CPU timing #define PNGTEST_TIMING */ @@ -126,30 +149,34 @@ static char tIME_string[PNG_tIME_STRING_LENGTH] = "tIME chunk is not present"; #endif static int verbose = 0; - -int test_one_file PNGARG((PNG_CONST char *inname, PNG_CONST char *outname)); - -#ifdef __TURBOC__ -#include <mem.h> -#endif - -/* Defined so I can write to a file on gui/windowing platforms */ -/* #define STDERR stderr */ -#define STDERR stdout /* For DOS */ +static int strict = 0; +static int relaxed = 0; +static int unsupported_chunks = 0; /* chunk unsupported by libpng in input */ +static int error_count = 0; /* count calls to png_error */ +static int warning_count = 0; /* count calls to png_warning */ /* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */ #ifndef png_jmpbuf # define png_jmpbuf(png_ptr) png_ptr->jmpbuf #endif +/* Defines for unknown chunk handling if required. */ +#ifndef PNG_HANDLE_CHUNK_ALWAYS +# define PNG_HANDLE_CHUNK_ALWAYS 3 +#endif +#ifndef PNG_HANDLE_CHUNK_IF_SAFE +# define PNG_HANDLE_CHUNK_IF_SAFE 2 +#endif + +/* Utility to save typing/errors, the argument must be a name */ +#define MEMZERO(var) ((void)memset(&var, 0, sizeof var)) + /* Example of using row callbacks to make a simple progress meter */ static int status_pass = 1; static int status_dots_requested = 0; static int status_dots = 1; -void PNGCBAPI -read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass); -void PNGCBAPI +static void PNGCBAPI read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) { if (png_ptr == NULL || row_number > PNG_UINT_31_MAX) @@ -173,9 +200,8 @@ read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) fprintf(stdout, "r"); } -void PNGCBAPI -write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass); -void PNGCBAPI +#ifdef PNG_WRITE_SUPPORTED +static void PNGCBAPI write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) { if (png_ptr == NULL || row_number > PNG_UINT_31_MAX || pass > 7) @@ -183,6 +209,7 @@ write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) fprintf(stdout, "w"); } +#endif #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED @@ -191,9 +218,7 @@ write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) * 5 in case illegal filter values are present.) */ static png_uint_32 filters_used[256]; -void PNGCBAPI -count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data); -void PNGCBAPI +static void PNGCBAPI count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data) { if (png_ptr != NULL && row_info != NULL) @@ -208,9 +233,7 @@ count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data) static png_uint_32 zero_samples; -void PNGCBAPI -count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data); -void PNGCBAPI +static void PNGCBAPI count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data) { png_bytep dp = data; @@ -288,7 +311,8 @@ count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data) png_uint_32 n, nstop; int channel; int color_channels = row_info->channels; - if (row_info->color_type > 3)color_channels--; + if (row_info->color_type > 3) + color_channels--; for (n = 0, nstop=row_info->width; n<nstop; n++) { @@ -315,9 +339,7 @@ count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data) } } } -#endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */ - -static int wrote_question = 0; +#endif /* WRITE_USER_TRANSFORM */ #ifndef PNG_STDIO_SUPPORTED /* START of code to validate stdio-free compilation */ @@ -366,12 +388,11 @@ pngtest_check_io_state(png_structp png_ptr, png_size_t data_length, default: err = 1; /* uninitialized */ } - if (err) + if (err != 0) png_error(png_ptr, "Bad I/O state or buffer size"); } #endif -#ifndef USE_FAR_KEYWORD static void PNGCBAPI pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length) { @@ -396,59 +417,6 @@ pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length) pngtest_check_io_state(png_ptr, length, PNG_IO_READING); #endif } -#else -/* This is the model-independent version. Since the standard I/O library - can't handle far buffers in the medium and small models, we have to copy - the data. -*/ - -#define NEAR_BUF_SIZE 1024 -#define MIN(a,b) (a <= b ? a : b) - -static void PNGCBAPI -pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_size_t check; - png_byte *n_data; - png_FILE_p io_ptr; - - /* Check if data really is near. If so, use usual code. */ - n_data = (png_byte *)CVT_PTR_NOCHECK(data); - io_ptr = (png_FILE_p)CVT_PTR(png_get_io_ptr(png_ptr)); - if ((png_bytep)n_data == data) - { - check = fread(n_data, 1, length, io_ptr); - } - else - { - png_byte buf[NEAR_BUF_SIZE]; - png_size_t read, remaining, err; - check = 0; - remaining = length; - - do - { - read = MIN(NEAR_BUF_SIZE, remaining); - err = fread(buf, 1, 1, io_ptr); - png_memcpy(data, buf, read); /* Copy far buffer to near buffer */ - if (err != read) - break; - else - check += err; - data += read; - remaining -= read; - } - while (remaining != 0); - } - - if (check != length) - png_error(png_ptr, "Read Error"); - -#ifdef PNG_IO_STATE_SUPPORTED - pngtest_check_io_state(png_ptr, length, PNG_IO_READING); -#endif -} -#endif /* USE_FAR_KEYWORD */ #ifdef PNG_WRITE_FLUSH_SUPPORTED static void PNGCBAPI @@ -464,7 +432,6 @@ pngtest_flush(png_structp png_ptr) * write_data function and use it at run time with png_set_write_fn(), rather * than changing the library. */ -#ifndef USE_FAR_KEYWORD static void PNGCBAPI pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length) { @@ -481,81 +448,31 @@ pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length) pngtest_check_io_state(png_ptr, length, PNG_IO_WRITING); #endif } -#else -/* This is the model-independent version. Since the standard I/O library - can't handle far buffers in the medium and small models, we have to copy - the data. -*/ - -#define NEAR_BUF_SIZE 1024 -#define MIN(a,b) (a <= b ? a : b) - -static void PNGCBAPI -pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_size_t check; - png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */ - png_FILE_p io_ptr; - - /* Check if data really is near. If so, use usual code. */ - near_data = (png_byte *)CVT_PTR_NOCHECK(data); - io_ptr = (png_FILE_p)CVT_PTR(png_get_io_ptr(png_ptr)); - - if ((png_bytep)near_data == data) - { - check = fwrite(near_data, 1, length, io_ptr); - } - - else - { - png_byte buf[NEAR_BUF_SIZE]; - png_size_t written, remaining, err; - check = 0; - remaining = length; - - do - { - written = MIN(NEAR_BUF_SIZE, remaining); - png_memcpy(buf, data, written); /* Copy far buffer to near buffer */ - err = fwrite(buf, 1, written, io_ptr); - if (err != written) - break; - else - check += err; - data += written; - remaining -= written; - } - while (remaining != 0); - } - - if (check != length) - { - png_error(png_ptr, "Write Error"); - } - -#ifdef PNG_IO_STATE_SUPPORTED - pngtest_check_io_state(png_ptr, length, PNG_IO_WRITING); -#endif -} -#endif /* USE_FAR_KEYWORD */ +#endif /* !STDIO */ /* This function is called when there is a warning, but the library thinks * it can continue anyway. Replacement functions don't have to do anything * here if you don't want to. In the default configuration, png_ptr is * not used, but it is passed in case it may be useful. */ +typedef struct +{ + PNG_CONST char *file_name; +} pngtest_error_parameters; + static void PNGCBAPI pngtest_warning(png_structp png_ptr, png_const_charp message) { PNG_CONST char *name = "UNKNOWN (ERROR!)"; - char *test; - test = png_get_error_ptr(png_ptr); + pngtest_error_parameters *test = + (pngtest_error_parameters*)png_get_error_ptr(png_ptr); - if (test == NULL) - fprintf(STDERR, "%s: libpng warning: %s\n", name, message); + ++warning_count; - else - fprintf(STDERR, "%s: libpng warning: %s\n", test, message); + if (test != NULL && test->file_name != NULL) + name = test->file_name; + + fprintf(STDERR, "%s: libpng warning: %s\n", name, message); } /* This is the default error handling function. Note that replacements for @@ -566,12 +483,14 @@ pngtest_warning(png_structp png_ptr, png_const_charp message) static void PNGCBAPI pngtest_error(png_structp png_ptr, png_const_charp message) { + ++error_count; + pngtest_warning(png_ptr, message); /* We can return because png_error calls the default handler, which is * actually OK in this case. */ } -#endif /* !PNG_STDIO_SUPPORTED */ + /* END of code to validate stdio-free compilation */ /* START of code to validate memory allocation and deallocation */ @@ -590,9 +509,9 @@ typedef struct memory_information { png_alloc_size_t size; png_voidp pointer; - struct memory_information FAR *next; + struct memory_information *next; } memory_information; -typedef memory_information FAR *memory_infop; +typedef memory_information *memory_infop; static memory_infop pinformation = NULL; static int current_allocation = 0; @@ -622,7 +541,7 @@ PNGCBAPI png_debug_malloc(png_structp png_ptr, png_alloc_size_t size) memory_infop pinfo; png_set_mem_fn(png_ptr, NULL, NULL, NULL); pinfo = (memory_infop)png_malloc(png_ptr, - png_sizeof(*pinfo)); + (sizeof *pinfo)); pinfo->size = size; current_allocation += size; total_allocation += size; @@ -648,9 +567,9 @@ PNGCBAPI png_debug_malloc(png_structp png_ptr, png_alloc_size_t size) pinfo->next = pinformation; pinformation = pinfo; /* Make sure the caller isn't assuming zeroed memory. */ - png_memset(pinfo->pointer, 0xdd, pinfo->size); + memset(pinfo->pointer, 0xdd, pinfo->size); - if (verbose) + if (verbose != 0) printf("png_malloc %lu bytes at %p\n", (unsigned long)size, pinfo->pointer); @@ -675,7 +594,7 @@ png_debug_free(png_structp png_ptr, png_voidp ptr) /* Unlink the element from the list. */ { - memory_infop FAR *ppinfo = &pinformation; + memory_infop *ppinfo = &pinformation; for (;;) { @@ -689,15 +608,16 @@ png_debug_free(png_structp png_ptr, png_voidp ptr) fprintf(STDERR, "Duplicate free of memory\n"); /* We must free the list element too, but first kill the memory that is to be freed. */ - png_memset(ptr, 0x55, pinfo->size); - png_free_default(png_ptr, pinfo); + memset(ptr, 0x55, pinfo->size); + if (pinfo != NULL) + free(pinfo); pinfo = NULL; break; } if (pinfo->next == NULL) { - fprintf(STDERR, "Pointer %x not found\n", (unsigned int)ptr); + fprintf(STDERR, "Pointer %p not found\n", ptr); break; } @@ -706,35 +626,84 @@ png_debug_free(png_structp png_ptr, png_voidp ptr) } /* Finally free the data. */ - if (verbose) + if (verbose != 0) printf("Freeing %p\n", ptr); - png_free_default(png_ptr, ptr); + if (ptr != NULL) + free(ptr); ptr = NULL; } -#endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */ +#endif /* USER_MEM && DEBUG */ /* END of code to test memory allocation/deallocation */ +#ifdef PNG_READ_USER_CHUNKS_SUPPORTED /* Demonstration of user chunk support of the sTER and vpAg chunks */ -#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED /* (sTER is a public chunk not yet known by libpng. vpAg is a private chunk used in ImageMagick to store "virtual page" size). */ -static png_uint_32 user_chunk_data[4]; +static struct user_chunk_data +{ + png_const_infop info_ptr; + png_uint_32 vpAg_width, vpAg_height; + png_byte vpAg_units; + png_byte sTER_mode; + int location[2]; +} +user_chunk_data; + +/* Used for location and order; zero means nothing. */ +#define have_sTER 0x01 +#define have_vpAg 0x02 +#define before_PLTE 0x10 +#define before_IDAT 0x20 +#define after_IDAT 0x40 + +static void +init_callback_info(png_const_infop info_ptr) +{ + MEMZERO(user_chunk_data); + user_chunk_data.info_ptr = info_ptr; +} + +static int +set_location(png_structp png_ptr, struct user_chunk_data *data, int what) +{ + int location; + + if ((data->location[0] & what) != 0 || (data->location[1] & what) != 0) + return 0; /* already have one of these */ + + /* Find where we are (the code below zeroes info_ptr to indicate that the + * chunks before the first IDAT have been read.) + */ + if (data->info_ptr == NULL) /* after IDAT */ + location = what | after_IDAT; + + else if (png_get_valid(png_ptr, data->info_ptr, PNG_INFO_PLTE) != 0) + location = what | before_IDAT; + + else + location = what | before_PLTE; + + if (data->location[0] == 0) + data->location[0] = location; + + else + data->location[1] = location; - /* 0: sTER mode + 1 - * 1: vpAg width - * 2: vpAg height - * 3: vpAg units - */ + return 1; /* handled */ +} -static int PNGCBAPI read_user_chunk_callback(png_struct *png_ptr, - png_unknown_chunkp chunk) +static int PNGCBAPI +read_user_chunk_callback(png_struct *png_ptr, png_unknown_chunkp chunk) { - png_uint_32 - *my_user_chunk_data; + struct user_chunk_data *my_user_chunk_data = + (struct user_chunk_data*)png_get_user_chunk_ptr(png_ptr); + + if (my_user_chunk_data == NULL) + png_error(png_ptr, "lost user chunk pointer"); /* Return one of the following: * return (-n); chunk had an error @@ -759,9 +728,14 @@ static int PNGCBAPI read_user_chunk_callback(png_struct *png_ptr, if (chunk->data[0] != 0 && chunk->data[0] != 1) return (-1); /* Invalid mode */ - my_user_chunk_data=(png_uint_32 *) png_get_user_chunk_ptr(png_ptr); - my_user_chunk_data[0]=chunk->data[0]+1; - return (1); + if (set_location(png_ptr, my_user_chunk_data, have_sTER) != 0) + { + my_user_chunk_data->sTER_mode=chunk->data[0]; + return (1); + } + + else + return (0); /* duplicate sTER - give it to libpng */ } if (chunk->name[0] != 118 || chunk->name[1] != 112 || /* v p */ @@ -773,30 +747,126 @@ static int PNGCBAPI read_user_chunk_callback(png_struct *png_ptr, if (chunk->size != 9) return (-1); /* Error return */ - my_user_chunk_data=(png_uint_32 *) png_get_user_chunk_ptr(png_ptr); + if (set_location(png_ptr, my_user_chunk_data, have_vpAg) == 0) + return (0); /* duplicate vpAg */ - my_user_chunk_data[1]=png_get_uint_31(png_ptr, chunk->data); - my_user_chunk_data[2]=png_get_uint_31(png_ptr, chunk->data + 4); - my_user_chunk_data[3]=(png_uint_32)chunk->data[8]; + my_user_chunk_data->vpAg_width = png_get_uint_31(png_ptr, chunk->data); + my_user_chunk_data->vpAg_height = png_get_uint_31(png_ptr, chunk->data + 4); + my_user_chunk_data->vpAg_units = chunk->data[8]; return (1); +} + +#ifdef PNG_WRITE_SUPPORTED +static void +write_sTER_chunk(png_structp write_ptr) +{ + png_byte sTER[5] = {115, 84, 69, 82, '\0'}; + if (verbose != 0) + fprintf(STDERR, "\n stereo mode = %d\n", user_chunk_data.sTER_mode); + + png_write_chunk(write_ptr, sTER, &user_chunk_data.sTER_mode, 1); +} + +static void +write_vpAg_chunk(png_structp write_ptr) +{ + png_byte vpAg[5] = {118, 112, 65, 103, '\0'}; + + png_byte vpag_chunk_data[9]; + + if (verbose != 0) + fprintf(STDERR, " vpAg = %lu x %lu, units = %d\n", + (unsigned long)user_chunk_data.vpAg_width, + (unsigned long)user_chunk_data.vpAg_height, + user_chunk_data.vpAg_units); + + png_save_uint_32(vpag_chunk_data, user_chunk_data.vpAg_width); + png_save_uint_32(vpag_chunk_data + 4, user_chunk_data.vpAg_height); + vpag_chunk_data[8] = user_chunk_data.vpAg_units; + png_write_chunk(write_ptr, vpAg, vpag_chunk_data, 9); +} + +static void +write_chunks(png_structp write_ptr, int location) +{ + int i; + + /* Notice that this preserves the original chunk order, however chunks + * intercepted by the callback will be written *after* chunks passed to + * libpng. This will actually reverse a pair of sTER chunks or a pair of + * vpAg chunks, resulting in an error later. This is not worth worrying + * about - the chunks should not be duplicated! + */ + for (i=0; i<2; ++i) + { + if (user_chunk_data.location[i] == (location | have_sTER)) + write_sTER_chunk(write_ptr); + + else if (user_chunk_data.location[i] == (location | have_vpAg)) + write_vpAg_chunk(write_ptr); + } } +#endif /* WRITE */ +#else /* !READ_USER_CHUNKS */ +# define write_chunks(pp,loc) ((void)0) #endif /* END of code to demonstrate user chunk support */ +/* START of code to check that libpng has the required text support; this only + * checks for the write support because if read support is missing the chunk + * will simply not be reported back to pngtest. + */ +#ifdef PNG_TEXT_SUPPORTED +static void +pngtest_check_text_support(png_const_structp png_ptr, png_textp text_ptr, + int num_text) +{ + while (num_text > 0) + { + switch (text_ptr[--num_text].compression) + { + case PNG_TEXT_COMPRESSION_NONE: + break; + + case PNG_TEXT_COMPRESSION_zTXt: +# ifndef PNG_WRITE_zTXt_SUPPORTED + ++unsupported_chunks; +# endif + break; + + case PNG_ITXT_COMPRESSION_NONE: + case PNG_ITXT_COMPRESSION_zTXt: +# ifndef PNG_WRITE_iTXt_SUPPORTED + ++unsupported_chunks; +# endif + break; + + default: + /* This is an error */ + png_error(png_ptr, "invalid text chunk compression field"); + break; + } + } +} +#endif +/* END of code to check that libpng has the required text support */ + /* Test one file */ -int +static int test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) { static png_FILE_p fpin; static png_FILE_p fpout; /* "static" prevents setjmp corruption */ + pngtest_error_parameters error_parameters; png_structp read_ptr; png_infop read_info_ptr, end_info_ptr; #ifdef PNG_WRITE_SUPPORTED png_structp write_ptr; png_infop write_info_ptr; png_infop write_end_info_ptr; + int interlace_preserved = 1; #else png_structp write_ptr = NULL; png_infop write_info_ptr = NULL; @@ -805,17 +875,11 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) png_bytep row_buf; png_uint_32 y; png_uint_32 width, height; - int num_pass, pass; + int num_pass = 1, pass; int bit_depth, color_type; -#ifdef PNG_SETJMP_SUPPORTED -#ifdef USE_FAR_KEYWORD - jmp_buf tmp_jmpbuf; -#endif -#endif - - char inbuf[256], outbuf[256]; row_buf = NULL; + error_parameters.file_name = inname; if ((fpin = fopen(inname, "rb")) == NULL) { @@ -839,20 +903,9 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) read_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); #endif -#ifndef PNG_STDIO_SUPPORTED - png_set_error_fn(read_ptr, (png_voidp)inname, pngtest_error, - pngtest_warning); -#endif - -#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED - user_chunk_data[0] = 0; - user_chunk_data[1] = 0; - user_chunk_data[2] = 0; - user_chunk_data[3] = 0; - png_set_read_user_chunk_fn(read_ptr, user_chunk_data, - read_user_chunk_callback); + png_set_error_fn(read_ptr, &error_parameters, pngtest_error, + pngtest_warning); -#endif #ifdef PNG_WRITE_SUPPORTED #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG write_ptr = @@ -862,10 +915,8 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) write_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); #endif -#ifndef PNG_STDIO_SUPPORTED - png_set_error_fn(write_ptr, (png_voidp)inname, pngtest_error, - pngtest_warning); -#endif + png_set_error_fn(write_ptr, &error_parameters, pngtest_error, + pngtest_warning); #endif pngtest_debug("Allocating read_info, write_info and end_info structures"); read_info_ptr = png_create_info_struct(read_ptr); @@ -875,13 +926,15 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) write_end_info_ptr = png_create_info_struct(write_ptr); #endif +#ifdef PNG_READ_USER_CHUNKS_SUPPORTED + init_callback_info(read_info_ptr); + png_set_read_user_chunk_fn(read_ptr, &user_chunk_data, + read_user_chunk_callback); +#endif + #ifdef PNG_SETJMP_SUPPORTED pngtest_debug("Setting jmpbuf for read struct"); -#ifdef USE_FAR_KEYWORD - if (setjmp(tmp_jmpbuf)) -#else if (setjmp(png_jmpbuf(read_ptr))) -#endif { fprintf(STDERR, "%s -> %s: libpng read error\n", inname, outname); png_free(read_ptr, row_buf); @@ -895,18 +948,11 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) FCLOSE(fpout); return (1); } -#ifdef USE_FAR_KEYWORD - png_memcpy(png_jmpbuf(read_ptr), tmp_jmpbuf, png_sizeof(jmp_buf)); -#endif #ifdef PNG_WRITE_SUPPORTED pngtest_debug("Setting jmpbuf for write struct"); -#ifdef USE_FAR_KEYWORD - if (setjmp(tmp_jmpbuf)) -#else if (setjmp(png_jmpbuf(write_ptr))) -#endif { fprintf(STDERR, "%s -> %s: libpng write error\n", inname, outname); png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); @@ -918,12 +964,34 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) FCLOSE(fpout); return (1); } - -#ifdef USE_FAR_KEYWORD - png_memcpy(png_jmpbuf(write_ptr), tmp_jmpbuf, png_sizeof(jmp_buf)); #endif #endif + + if (strict != 0) + { + /* Treat png_benign_error() as errors on read */ + png_set_benign_errors(read_ptr, 0); + +#ifdef PNG_WRITE_SUPPORTED + /* Treat them as errors on write */ + png_set_benign_errors(write_ptr, 0); +#endif + + /* if strict is not set, then app warnings and errors are treated as + * warnings in release builds, but not in unstable builds; this can be + * changed with '--relaxed'. + */ + } + + else if (relaxed != 0) + { + /* Allow application (pngtest) errors and warnings to pass */ + png_set_benign_errors(read_ptr, 1); + +#ifdef PNG_WRITE_SUPPORTED + png_set_benign_errors(write_ptr, 1); #endif + } pngtest_debug("Initializing input and output streams"); #ifdef PNG_STDIO_SUPPORTED @@ -943,14 +1011,6 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) # endif #endif -#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED - /* Normally one would use Z_DEFAULT_STRATEGY for text compression. - * This is here just to make pngtest replicate the results from libpng - * versions prior to 1.5.4, and to test this new API. - */ - png_set_text_compression_strategy(write_ptr, Z_FILTERED); -#endif - if (status_dots_requested == 1) { #ifdef PNG_WRITE_SUPPORTED @@ -982,36 +1042,65 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) png_set_write_user_transform_fn(write_ptr, count_zero_samples); #endif -#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED -# ifndef PNG_HANDLE_CHUNK_ALWAYS -# define PNG_HANDLE_CHUNK_ALWAYS 3 -# endif +#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED + /* Preserve all the unknown chunks, if possible. If this is disabled then, + * even if the png_{get,set}_unknown_chunks stuff is enabled, we can't use + * libpng to *save* the unknown chunks on read (because we can't switch the + * save option on!) + * + * Notice that if SET_UNKNOWN_CHUNKS is *not* supported read will discard all + * unknown chunks and write will write them all. + */ +#ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED png_set_keep_unknown_chunks(read_ptr, PNG_HANDLE_CHUNK_ALWAYS, NULL, 0); #endif #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED -# ifndef PNG_HANDLE_CHUNK_IF_SAFE -# define PNG_HANDLE_CHUNK_IF_SAFE 2 -# endif - png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_IF_SAFE, + png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_ALWAYS, NULL, 0); #endif +#endif pngtest_debug("Reading info struct"); png_read_info(read_ptr, read_info_ptr); +#ifdef PNG_READ_USER_CHUNKS_SUPPORTED + /* This is a bit of a hack; there is no obvious way in the callback function + * to determine that the chunks before the first IDAT have been read, so + * remove the info_ptr (which is only used to determine position relative to + * PLTE) here to indicate that we are after the IDAT. + */ + user_chunk_data.info_ptr = NULL; +#endif + pngtest_debug("Transferring info struct"); { int interlace_type, compression_type, filter_type; if (png_get_IHDR(read_ptr, read_info_ptr, &width, &height, &bit_depth, - &color_type, &interlace_type, &compression_type, &filter_type)) + &color_type, &interlace_type, &compression_type, &filter_type) != 0) { png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth, -#ifdef PNG_WRITE_INTERLACING_SUPPORTED color_type, interlace_type, compression_type, filter_type); -#else - color_type, PNG_INTERLACE_NONE, compression_type, filter_type); +#ifndef PNG_READ_INTERLACING_SUPPORTED + /* num_pass will not be set below, set it here if the image is + * interlaced: what happens is that write interlacing is *not* turned + * on an the partial interlaced rows are written directly. + */ + switch (interlace_type) + { + case PNG_INTERLACE_NONE: + num_pass = 1; + break; + + case PNG_INTERLACE_ADAM7: + num_pass = 7; + break; + + default: + png_error(read_ptr, "invalid interlace type"); + /*NOT REACHED*/ + } #endif } } @@ -1022,7 +1111,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) blue_y; if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y, - &red_x, &red_y, &green_x, &green_y, &blue_x, &blue_y)) + &red_x, &red_y, &green_x, &green_y, &blue_x, &blue_y) != 0) { png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y); @@ -1033,7 +1122,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) { png_fixed_point gamma; - if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma)) + if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma) != 0) png_set_gAMA_fixed(write_ptr, write_info_ptr, gamma); } #endif @@ -1045,7 +1134,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) blue_y; if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x, - &red_y, &green_x, &green_y, &blue_x, &blue_y)) + &red_y, &green_x, &green_y, &blue_x, &blue_y) != 0) { png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y); @@ -1056,7 +1145,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) { double gamma; - if (png_get_gAMA(read_ptr, read_info_ptr, &gamma)) + if (png_get_gAMA(read_ptr, read_info_ptr, &gamma) != 0) png_set_gAMA(write_ptr, write_info_ptr, gamma); } #endif @@ -1070,7 +1159,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) int compression_type; if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type, - &profile, &proflen)) + &profile, &proflen) != 0) { png_set_iCCP(write_ptr, write_info_ptr, name, compression_type, profile, proflen); @@ -1081,7 +1170,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) { int intent; - if (png_get_sRGB(read_ptr, read_info_ptr, &intent)) + if (png_get_sRGB(read_ptr, read_info_ptr, &intent) != 0) png_set_sRGB(write_ptr, write_info_ptr, intent); } #endif @@ -1089,14 +1178,14 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) png_colorp palette; int num_palette; - if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette)) + if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette) != 0) png_set_PLTE(write_ptr, write_info_ptr, palette, num_palette); } #ifdef PNG_bKGD_SUPPORTED { png_color_16p background; - if (png_get_bKGD(read_ptr, read_info_ptr, &background)) + if (png_get_bKGD(read_ptr, read_info_ptr, &background) != 0) { png_set_bKGD(write_ptr, write_info_ptr, background); } @@ -1106,7 +1195,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) { png_uint_16p hist; - if (png_get_hIST(read_ptr, read_info_ptr, &hist)) + if (png_get_hIST(read_ptr, read_info_ptr, &hist) != 0) png_set_hIST(write_ptr, write_info_ptr, hist); } #endif @@ -1116,7 +1205,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) int unit_type; if (png_get_oFFs(read_ptr, read_info_ptr, &offset_x, &offset_y, - &unit_type)) + &unit_type) != 0) { png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type); } @@ -1130,7 +1219,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) int type, nparams; if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type, - &nparams, &units, ¶ms)) + &nparams, &units, ¶ms) != 0) { png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type, nparams, units, params); @@ -1142,7 +1231,8 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) png_uint_32 res_x, res_y; int unit_type; - if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y, &unit_type)) + if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y, + &unit_type) != 0) png_set_pHYs(write_ptr, write_info_ptr, res_x, res_y, unit_type); } #endif @@ -1150,18 +1240,19 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) { png_color_8p sig_bit; - if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit)) + if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit) != 0) png_set_sBIT(write_ptr, write_info_ptr, sig_bit); } #endif #ifdef PNG_sCAL_SUPPORTED -#ifdef PNG_FLOATING_POINT_SUPPORTED +#if defined(PNG_FLOATING_POINT_SUPPORTED) && \ + defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) { int unit; double scal_width, scal_height; if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width, - &scal_height)) + &scal_height) != 0) { png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height); } @@ -1173,7 +1264,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) png_charp scal_width, scal_height; if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width, - &scal_height)) + &scal_height) != 0) { png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width, scal_height); @@ -1190,6 +1281,21 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) if (png_get_text(read_ptr, read_info_ptr, &text_ptr, &num_text) > 0) { pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text); + + pngtest_check_text_support(read_ptr, text_ptr, num_text); + + if (verbose != 0) + { + int i; + + printf("\n"); + for (i=0; i<num_text; i++) + { + printf(" Text compression[%d]=%d\n", + i, text_ptr[i].compression); + } + } + png_set_text(write_ptr, write_info_ptr, text_ptr, num_text); } } @@ -1198,21 +1304,21 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) { png_timep mod_time; - if (png_get_tIME(read_ptr, read_info_ptr, &mod_time)) + if (png_get_tIME(read_ptr, read_info_ptr, &mod_time) != 0) { png_set_tIME(write_ptr, write_info_ptr, mod_time); #ifdef PNG_TIME_RFC1123_SUPPORTED - /* We have to use png_memcpy instead of "=" because the string - * pointed to by png_convert_to_rfc1123() gets free'ed before - * we use it. - */ - png_memcpy(tIME_string, - png_convert_to_rfc1123(read_ptr, mod_time), - png_sizeof(tIME_string)); + if (png_convert_to_rfc1123_buffer(tIME_string, mod_time) != 0) + tIME_string[(sizeof tIME_string) - 1] = '\0'; + + else + { + strncpy(tIME_string, "*** invalid time ***", (sizeof tIME_string)); + tIME_string[(sizeof tIME_string) - 1] = '\0'; + } - tIME_string[png_sizeof(tIME_string) - 1] = '\0'; tIME_chunk_present++; -#endif /* PNG_TIME_RFC1123_SUPPORTED */ +#endif /* TIME_RFC1123 */ } } #endif @@ -1223,7 +1329,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) png_color_16p trans_color; if (png_get_tRNS(read_ptr, read_info_ptr, &trans_alpha, &num_trans, - &trans_color)) + &trans_color) != 0) { int sample_max = (1 << bit_depth); /* libpng doesn't reject a tRNS chunk with out-of-range samples */ @@ -1244,18 +1350,22 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) int num_unknowns = png_get_unknown_chunks(read_ptr, read_info_ptr, &unknowns); - if (num_unknowns) + if (num_unknowns != 0) { - int i; png_set_unknown_chunks(write_ptr, write_info_ptr, unknowns, num_unknowns); +#if PNG_LIBPNG_VER < 10600 /* Copy the locations from the read_info_ptr. The automatically - * generated locations in write_info_ptr are wrong because we - * haven't written anything yet. + * generated locations in write_end_info_ptr are wrong prior to 1.6.0 + * because they are reset from the write pointer (removed in 1.6.0). */ - for (i = 0; i < num_unknowns; i++) - png_set_unknown_chunk_location(write_ptr, write_info_ptr, i, - unknowns[i].location); + { + int i; + for (i = 0; i < num_unknowns; i++) + png_set_unknown_chunk_location(write_ptr, write_info_ptr, i, + unknowns[i].location); + } +#endif } } #endif @@ -1263,47 +1373,16 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) #ifdef PNG_WRITE_SUPPORTED pngtest_debug("Writing info struct"); -/* If we wanted, we could write info in two steps: - * png_write_info_before_PLTE(write_ptr, write_info_ptr); - */ - png_write_info(write_ptr, write_info_ptr); - -#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED - if (user_chunk_data[0] != 0) - { - png_byte png_sTER[5] = {115, 84, 69, 82, '\0'}; - - unsigned char - ster_chunk_data[1]; - - if (verbose) - fprintf(STDERR, "\n stereo mode = %lu\n", - (unsigned long)(user_chunk_data[0] - 1)); - - ster_chunk_data[0]=(unsigned char)(user_chunk_data[0] - 1); - png_write_chunk(write_ptr, png_sTER, ster_chunk_data, 1); - } - - if (user_chunk_data[1] != 0 || user_chunk_data[2] != 0) - { - png_byte png_vpAg[5] = {118, 112, 65, 103, '\0'}; - - unsigned char - vpag_chunk_data[9]; + /* Write the info in two steps so that if we write the 'unknown' chunks here + * they go to the correct place. + */ + png_write_info_before_PLTE(write_ptr, write_info_ptr); - if (verbose) - fprintf(STDERR, " vpAg = %lu x %lu, units = %lu\n", - (unsigned long)user_chunk_data[1], - (unsigned long)user_chunk_data[2], - (unsigned long)user_chunk_data[3]); + write_chunks(write_ptr, before_PLTE); /* before PLTE */ - png_save_uint_32(vpag_chunk_data, user_chunk_data[1]); - png_save_uint_32(vpag_chunk_data + 4, user_chunk_data[2]); - vpag_chunk_data[8] = (unsigned char)(user_chunk_data[3] & 0xff); - png_write_chunk(write_ptr, png_vpAg, vpag_chunk_data, 9); - } + png_write_info(write_ptr, write_info_ptr); -#endif + write_chunks(write_ptr, before_IDAT); /* after PLTE */ #endif #ifdef SINGLE_ROWBUF_ALLOC @@ -1315,14 +1394,10 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) #endif /* SINGLE_ROWBUF_ALLOC */ pngtest_debug("Writing row data"); -#if defined(PNG_READ_INTERLACING_SUPPORTED) || \ - defined(PNG_WRITE_INTERLACING_SUPPORTED) +#ifdef PNG_READ_INTERLACING_SUPPORTED num_pass = png_set_interlace_handling(read_ptr); -# ifdef PNG_WRITE_SUPPORTED - png_set_interlace_handling(write_ptr); -# endif -#else - num_pass = 1; + if (png_set_interlace_handling(write_ptr) != num_pass) + png_error(write_ptr, "png_set_interlace_handling: inconsistent num_pass"); #endif #ifdef PNGTEST_TIMING @@ -1337,11 +1412,12 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) { #ifndef SINGLE_ROWBUF_ALLOC pngtest_debug2("Allocating row buffer (pass %d, y = %u)...", pass, y); + row_buf = (png_bytep)png_malloc(read_ptr, png_get_rowbytes(read_ptr, read_info_ptr)); - pngtest_debug2("\t0x%08lx (%u bytes)", (unsigned long)row_buf, - png_get_rowbytes(read_ptr, read_info_ptr)); + pngtest_debug2("\t0x%08lx (%lu bytes)", (unsigned long)row_buf, + (unsigned long)png_get_rowbytes(read_ptr, read_info_ptr)); #endif /* !SINGLE_ROWBUF_ALLOC */ png_read_rows(read_ptr, (png_bytepp)&row_buf, NULL, 1); @@ -1358,7 +1434,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) t_encode += (t_stop - t_start); t_start = t_stop; #endif -#endif /* PNG_WRITE_SUPPORTED */ +#endif /* WRITE */ #ifndef SINGLE_ROWBUF_ALLOC pngtest_debug2("Freeing row buffer (pass %d, y = %u)", pass, y); @@ -1368,11 +1444,13 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) } } -#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED - png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1); -#endif -#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED - png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1); +#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED +# ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED + png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1); +# endif +# ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED + png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1); +# endif #endif pngtest_debug("Reading and writing end_info data"); @@ -1386,6 +1464,21 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) if (png_get_text(read_ptr, end_info_ptr, &text_ptr, &num_text) > 0) { pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text); + + pngtest_check_text_support(read_ptr, text_ptr, num_text); + + if (verbose != 0) + { + int i; + + printf("\n"); + for (i=0; i<num_text; i++) + { + printf(" Text compression[%d]=%d\n", + i, text_ptr[i].compression); + } + } + png_set_text(write_ptr, write_end_info_ptr, text_ptr, num_text); } } @@ -1394,20 +1487,21 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) { png_timep mod_time; - if (png_get_tIME(read_ptr, end_info_ptr, &mod_time)) + if (png_get_tIME(read_ptr, end_info_ptr, &mod_time) != 0) { png_set_tIME(write_ptr, write_end_info_ptr, mod_time); #ifdef PNG_TIME_RFC1123_SUPPORTED - /* We have to use png_memcpy instead of "=" because the string - pointed to by png_convert_to_rfc1123() gets free'ed before - we use it */ - png_memcpy(tIME_string, - png_convert_to_rfc1123(read_ptr, mod_time), - png_sizeof(tIME_string)); - - tIME_string[png_sizeof(tIME_string) - 1] = '\0'; + if (png_convert_to_rfc1123_buffer(tIME_string, mod_time) != 0) + tIME_string[(sizeof tIME_string) - 1] = '\0'; + + else + { + strncpy(tIME_string, "*** invalid time ***", sizeof tIME_string); + tIME_string[(sizeof tIME_string)-1] = '\0'; + } + tIME_chunk_present++; -#endif /* PNG_TIME_RFC1123_SUPPORTED */ +#endif /* TIME_RFC1123 */ } } #endif @@ -1417,27 +1511,48 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) int num_unknowns = png_get_unknown_chunks(read_ptr, end_info_ptr, &unknowns); - if (num_unknowns) + if (num_unknowns != 0) { - int i; png_set_unknown_chunks(write_ptr, write_end_info_ptr, unknowns, num_unknowns); +#if PNG_LIBPNG_VER < 10600 /* Copy the locations from the read_info_ptr. The automatically - * generated locations in write_end_info_ptr are wrong because we - * haven't written the end_info yet. + * generated locations in write_end_info_ptr are wrong prior to 1.6.0 + * because they are reset from the write pointer (removed in 1.6.0). */ - for (i = 0; i < num_unknowns; i++) - png_set_unknown_chunk_location(write_ptr, write_end_info_ptr, i, - unknowns[i].location); + { + int i; + for (i = 0; i < num_unknowns; i++) + png_set_unknown_chunk_location(write_ptr, write_end_info_ptr, i, + unknowns[i].location); + } +#endif } } #endif + #ifdef PNG_WRITE_SUPPORTED +#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED + /* Normally one would use Z_DEFAULT_STRATEGY for text compression. + * This is here just to make pngtest replicate the results from libpng + * versions prior to 1.5.4, and to test this new API. + */ + png_set_text_compression_strategy(write_ptr, Z_FILTERED); +#endif + + /* When the unknown vpAg/sTER chunks are written by pngtest the only way to + * do it is to write them *before* calling png_write_end. When unknown + * chunks are written by libpng, however, they are written just before IEND. + * There seems to be no way round this, however vpAg/sTER are not expected + * after IDAT. + */ + write_chunks(write_ptr, after_IDAT); + png_write_end(write_ptr, write_end_info_ptr); #endif #ifdef PNG_EASY_ACCESS_SUPPORTED - if (verbose) + if (verbose != 0) { png_uint_32 iwidth, iheight; iwidth = png_get_image_width(write_ptr, write_info_ptr); @@ -1466,6 +1581,40 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) FCLOSE(fpin); FCLOSE(fpout); + /* Summarize any warnings or errors and in 'strict' mode fail the test. + * Unsupported chunks can result in warnings, in that case ignore the strict + * setting, otherwise fail the test on warnings as well as errors. + */ + if (error_count > 0) + { + /* We don't really expect to get here because of the setjmp handling + * above, but this is safe. + */ + fprintf(STDERR, "\n %s: %d libpng errors found (%d warnings)", + inname, error_count, warning_count); + + if (strict != 0) + return (1); + } + +# ifdef PNG_WRITE_SUPPORTED + /* If there we no write support nothing was written! */ + else if (unsupported_chunks > 0) + { + fprintf(STDERR, "\n %s: unsupported chunks (%d)%s", + inname, unsupported_chunks, strict ? ": IGNORED --strict!" : ""); + } +# endif + + else if (warning_count > 0) + { + fprintf(STDERR, "\n %s: %d libpng warnings found", + inname, warning_count); + + if (strict != 0) + return (1); + } + pngtest_debug("Opening files for comparison"); if ((fpin = fopen(inname, "rb")) == NULL) { @@ -1480,61 +1629,84 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) return (1); } - for (;;) +#ifdef PNG_WRITE_SUPPORTED /* else nothing was written */ + if (interlace_preserved != 0) /* else the files will be changed */ { - png_size_t num_in, num_out; - - num_in = fread(inbuf, 1, 1, fpin); - num_out = fread(outbuf, 1, 1, fpout); - - if (num_in != num_out) + for (;;) { - fprintf(STDERR, "\nFiles %s and %s are of a different size\n", - inname, outname); + static int wrote_question = 0; + png_size_t num_in, num_out; + char inbuf[256], outbuf[256]; - if (wrote_question == 0) + num_in = fread(inbuf, 1, sizeof inbuf, fpin); + num_out = fread(outbuf, 1, sizeof outbuf, fpout); + + if (num_in != num_out) { - fprintf(STDERR, + fprintf(STDERR, "\nFiles %s and %s are of a different size\n", + inname, outname); + + if (wrote_question == 0 && unsupported_chunks == 0) + { + fprintf(STDERR, " Was %s written with the same maximum IDAT chunk size (%d bytes),", - inname, PNG_ZBUF_SIZE); - fprintf(STDERR, - "\n filtering heuristic (libpng default), compression"); - fprintf(STDERR, - " level (zlib default),\n and zlib version (%s)?\n\n", - ZLIB_VERSION); - wrote_question = 1; - } + inname, PNG_ZBUF_SIZE); + fprintf(STDERR, + "\n filtering heuristic (libpng default), compression"); + fprintf(STDERR, + " level (zlib default),\n and zlib version (%s)?\n\n", + ZLIB_VERSION); + wrote_question = 1; + } - FCLOSE(fpin); - FCLOSE(fpout); - return (0); - } + FCLOSE(fpin); + FCLOSE(fpout); - if (!num_in) - break; + if (strict != 0 && unsupported_chunks == 0) + return (1); - if (png_memcmp(inbuf, outbuf, num_in)) - { - fprintf(STDERR, "\nFiles %s and %s are different\n", inname, outname); + else + return (0); + } + + if (num_in == 0) + break; - if (wrote_question == 0) + if (memcmp(inbuf, outbuf, num_in)) { - fprintf(STDERR, + fprintf(STDERR, "\nFiles %s and %s are different\n", inname, + outname); + + if (wrote_question == 0 && unsupported_chunks == 0) + { + fprintf(STDERR, " Was %s written with the same maximum IDAT chunk size (%d bytes),", - inname, PNG_ZBUF_SIZE); - fprintf(STDERR, - "\n filtering heuristic (libpng default), compression"); - fprintf(STDERR, - " level (zlib default),\n and zlib version (%s)?\n\n", - ZLIB_VERSION); - wrote_question = 1; - } + inname, PNG_ZBUF_SIZE); + fprintf(STDERR, + "\n filtering heuristic (libpng default), compression"); + fprintf(STDERR, + " level (zlib default),\n and zlib version (%s)?\n\n", + ZLIB_VERSION); + wrote_question = 1; + } + + FCLOSE(fpin); + FCLOSE(fpout); - FCLOSE(fpin); - FCLOSE(fpout); - return (0); + /* NOTE: the unsupported_chunks escape is permitted here because + * unsupported text chunk compression will result in the compression + * mode being changed (to NONE) yet, in the test case, the result + * can be exactly the same size! + */ + if (strict != 0 && unsupported_chunks == 0) + return (1); + + else + return (0); + } } } +#endif /* WRITE */ FCLOSE(fpin); FCLOSE(fpout); @@ -1614,6 +1786,24 @@ main(int argc, char *argv[]) inname = argv[2]; } + else if (strcmp(argv[1], "--strict") == 0) + { + status_dots_requested = 0; + verbose = 1; + inname = argv[2]; + strict++; + relaxed = 0; + } + + else if (strcmp(argv[1], "--relaxed") == 0) + { + status_dots_requested = 0; + verbose = 1; + inname = argv[2]; + strict = 0; + relaxed++; + } + else { inname = argv[1]; @@ -1621,10 +1811,11 @@ main(int argc, char *argv[]) } } - if (!multiple && argc == 3 + verbose) + if (multiple == 0 && argc == 3 + verbose) outname = argv[2 + verbose]; - if ((!multiple && argc > 3 + verbose) || (multiple && argc < 2)) + if ((multiple == 0 && argc > 3 + verbose) || + (multiple != 0 && argc < 2)) { fprintf(STDERR, "usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n", @@ -1636,7 +1827,7 @@ main(int argc, char *argv[]) exit(1); } - if (multiple) + if (multiple != 0) { int i; #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG @@ -1646,6 +1837,9 @@ main(int argc, char *argv[]) { int kerror; fprintf(STDERR, "\n Testing %s:", argv[i]); +#if PNG_DEBUG > 0 + fprintf(STDERR, "\n"); +#endif kerror = test_one_file(argv[i], outname); if (kerror == 0) { @@ -1660,7 +1854,7 @@ main(int argc, char *argv[]) #endif #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED for (k = 0; k<256; k++) - if (filters_used[k]) + if (filters_used[k] != 0) fprintf(STDERR, " Filter %d was used %lu times\n", k, (unsigned long)filters_used[k]); #endif @@ -1669,7 +1863,7 @@ main(int argc, char *argv[]) fprintf(STDERR, " tIME = %s\n", tIME_string); tIME_chunk_present = 0; -#endif /* PNG_TIME_RFC1123_SUPPORTED */ +#endif /* TIME_RFC1123 */ } else @@ -1691,9 +1885,9 @@ main(int argc, char *argv[]) while (pinfo != NULL) { - fprintf(STDERR, " %lu bytes at %x\n", + fprintf(STDERR, " %lu bytes at %p\n", (unsigned long)pinfo->size, - (unsigned int)pinfo->pointer); + pinfo->pointer); pinfo = pinfo->next; } } @@ -1727,7 +1921,12 @@ main(int argc, char *argv[]) status_dots_requested = 0; if (i == 0 || verbose == 1 || ierror != 0) + { fprintf(STDERR, "\n Testing %s:", inname); +#if PNG_DEBUG > 0 + fprintf(STDERR, "\n"); +#endif + } kerror = test_one_file(inname, outname); @@ -1746,21 +1945,26 @@ main(int argc, char *argv[]) #endif #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED for (k = 0; k<256; k++) - if (filters_used[k]) + if (filters_used[k] != 0) fprintf(STDERR, " Filter %d was used %lu times\n", k, (unsigned long)filters_used[k]); #endif #ifdef PNG_TIME_RFC1123_SUPPORTED if (tIME_chunk_present != 0) fprintf(STDERR, " tIME = %s\n", tIME_string); -#endif /* PNG_TIME_RFC1123_SUPPORTED */ +#endif /* TIME_RFC1123 */ } } else { if (verbose == 0 && i != 2) + { fprintf(STDERR, "\n Testing %s:", inname); +#if PNG_DEBUG > 0 + fprintf(STDERR, "\n"); +#endif + } fprintf(STDERR, " FAIL\n"); ierror += kerror; @@ -1779,8 +1983,8 @@ main(int argc, char *argv[]) while (pinfo != NULL) { - fprintf(STDERR, " %lu bytes at %x\n", - (unsigned long)pinfo->size, (unsigned int)pinfo->pointer); + fprintf(STDERR, " %lu bytes at %p\n", + (unsigned long)pinfo->size, pinfo->pointer); pinfo = pinfo->next; } } @@ -1820,6 +2024,16 @@ main(int argc, char *argv[]) return (int)(ierror != 0); } +#else +int +main(void) +{ + fprintf(STDERR, + " test ignored because libpng was not built with read support\n"); + /* And skip this test */ + return PNG_LIBPNG_VER < 10600 ? 0 : 77; +} +#endif /* Generate a compiler error if there is an old png.h in the search path. */ -typedef png_libpng_version_1_5_4 Your_png_h_is_not_version_1_5_4; +typedef png_libpng_version_1_6_16 Your_png_h_is_not_version_1_6_16; |