From 9491825ddff7a294d1f49061bae7044e426aeb2e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Fri, 6 Nov 2015 05:38:49 +0100 Subject: Imported Upstream version 1.8.3 --- tiff/test/raw_decode.c | 274 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 274 insertions(+) create mode 100755 tiff/test/raw_decode.c (limited to 'tiff/test/raw_decode.c') diff --git a/tiff/test/raw_decode.c b/tiff/test/raw_decode.c new file mode 100755 index 0000000..6d31eab --- /dev/null +++ b/tiff/test/raw_decode.c @@ -0,0 +1,274 @@ +/* $Id: raw_decode.c,v 1.5 2012-12-20 18:08:07 tgl Exp $ */ + +/* + * Copyright (c) 2012, Frank Warmerdam + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library + * + * The objective of this test suite is to test the JPEGRawDecode() + * interface via TIFReadEncodedTile(). This function with YCbCr subsampling + * is a frequent source of bugs. + */ + +#include "tif_config.h" + +#include +#include +#include +#ifdef HAVE_UNISTD_H +# include +#endif + +#include "tiffio.h" + +#include "jpeglib.h" /* Needed for JPEG_LIB_VERSION */ + +static unsigned char cluster_0[] = { 0, 0, 2, 0, 138, 139 }; +static unsigned char cluster_64[] = { 0, 0, 9, 6, 134, 119 }; +static unsigned char cluster_128[] = { 44, 40, 63, 59, 230, 95 }; + +static int check_cluster( int cluster, unsigned char *buffer, unsigned char *expected_cluster ) { + unsigned char *target = buffer + cluster*6; + + if (memcmp(target, expected_cluster, 6) == 0) { + return 0; + } + + fprintf( stderr, "Cluster %d did not match expected results.\n", cluster ); + fprintf( stderr, + "Expect: %3d %3d %3d %3d\n" + " %3d %3d\n", + expected_cluster[0], expected_cluster[1], + expected_cluster[4], expected_cluster[5], + expected_cluster[2], expected_cluster[3] ); + fprintf( stderr, + " Got: %3d %3d %3d %3d\n" + " %3d %3d\n", + target[0], target[1], + target[4], target[5], + target[2], target[3] ); + return 1; +} + +static int check_rgb_pixel( int pixel, + int min_red, int max_red, + int min_green, int max_green, + int min_blue, int max_blue, + unsigned char *buffer ) { + unsigned char *rgb = buffer + 3 * pixel; + + if( rgb[0] >= min_red && rgb[0] <= max_red && + rgb[1] >= min_green && rgb[1] <= max_green && + rgb[2] >= min_blue && rgb[2] <= max_blue ) { + return 0; + } + + fprintf( stderr, "Pixel %d did not match expected results.\n", pixel ); + fprintf( stderr, "Got R=%d (expected %d..%d), G=%d (expected %d..%d), B=%d (expected %d..%d)\n", + rgb[0], min_red, max_red, + rgb[1], min_green, max_green, + rgb[2], min_blue, max_blue ); + return 1; +} + +static int check_rgba_pixel( int pixel, + int min_red, int max_red, + int min_green, int max_green, + int min_blue, int max_blue, + int min_alpha, int max_alpha, + uint32 *buffer ) { + /* RGBA images are upside down - adjust for normal ordering */ + int adjusted_pixel = pixel % 128 + (127 - (pixel/128)) * 128; + uint32 rgba = buffer[adjusted_pixel]; + + if( TIFFGetR(rgba) >= (uint32) min_red && + TIFFGetR(rgba) <= (uint32) max_red && + TIFFGetG(rgba) >= (uint32) min_green && + TIFFGetG(rgba) <= (uint32) max_green && + TIFFGetB(rgba) >= (uint32) min_blue && + TIFFGetB(rgba) <= (uint32) max_blue && + TIFFGetA(rgba) >= (uint32) min_alpha && + TIFFGetA(rgba) <= (uint32) max_alpha ) { + return 0; + } + + fprintf( stderr, "Pixel %d did not match expected results.\n", pixel ); + fprintf( stderr, "Got R=%d (expected %d..%d), G=%d (expected %d..%d), B=%d (expected %d..%d), A=%d (expected %d..%d)\n", + TIFFGetR(rgba), min_red, max_red, + TIFFGetG(rgba), min_green, max_green, + TIFFGetB(rgba), min_blue, max_blue, + TIFFGetA(rgba), min_alpha, max_alpha ); + return 1; +} + +int +main(int argc, char **argv) +{ + TIFF *tif; + static const char *srcfilerel = "images/quad-tile.jpg.tiff"; + char *srcdir = NULL; + char srcfile[1024]; + unsigned short h, v; + int status; + unsigned char *buffer; + uint32 *rgba_buffer; + tsize_t sz, szout; + unsigned int pixel_status = 0; + + (void) argc; + (void) argv; + + if ((srcdir = getenv("srcdir")) == NULL) { + srcdir = "."; + } + if ((strlen(srcdir) + 1 + strlen(srcfilerel)) >= sizeof(srcfile)) { + fprintf( stderr, "srcdir too long %s\n", srcdir); + exit( 1 ); + } + strcpy(srcfile,srcdir); + strcat(srcfile,"/"); + strcat(srcfile,srcfilerel); + + tif = TIFFOpen(srcfile,"r"); + if ( tif == NULL ) { + fprintf( stderr, "Could not open %s\n", srcfile); + exit( 1 ); + } + + status = TIFFGetField(tif,TIFFTAG_YCBCRSUBSAMPLING, &h, &v); + if ( status == 0 || h != 2 || v != 2) { + fprintf( stderr, "Could not retrieve subsampling tag.\n" ); + exit(1); + } + + /* + * What is the appropriate size of a YCbCr encoded tile? + */ + sz = TIFFTileSize(tif); + if( sz != 24576) { + fprintf(stderr, "tiles are %d bytes\n", (int)sz); + exit(1); + } + + buffer = (unsigned char *) malloc(sz); + + /* + * Read a tile in decompressed form, but still YCbCr subsampled. + */ + szout = TIFFReadEncodedTile(tif,9,buffer,sz); + if (szout != sz) { + fprintf( stderr, + "Did not get expected result code from TIFFReadEncodedTile()(%d instead of %d)\n", + (int) szout, (int) sz ); + return 1; + } + + if( check_cluster( 0, buffer, cluster_0 ) + || check_cluster( 64, buffer, cluster_64 ) + || check_cluster( 128, buffer, cluster_128 ) ) { + exit(1); + } + free(buffer); + + /* + * Read a tile using the built-in conversion to RGB format provided by the JPEG library. + */ + TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); + + sz = TIFFTileSize(tif); + if( sz != 128*128*3) { + fprintf(stderr, "tiles are %d bytes\n", (int)sz); + exit(1); + } + + buffer = (unsigned char *) malloc(sz); + + szout = TIFFReadEncodedTile(tif,9,buffer,sz); + if (szout != sz) { + fprintf( stderr, + "Did not get expected result code from TIFFReadEncodedTile()(%d instead of %d)\n", + (int) szout, (int) sz ); + return 1; + } + + /* + * JPEG decoding is inherently inexact, so we can't test for exact + * pixel values. (Well, if we knew exactly which libjpeg version + * we were using, and with what settings, we could expect specific + * values ... but it's not worth the trouble to keep track of.) + * Hence, use ranges of expected values. The ranges may need to be + * widened over time as more versions of libjpeg appear. + */ + pixel_status |= check_rgb_pixel( 0, 15, 18, 0, 0, 18, 41, buffer ); + pixel_status |= check_rgb_pixel( 64, 0, 0, 0, 0, 0, 2, buffer ); + pixel_status |= check_rgb_pixel( 512, 5, 6, 34, 36, 182, 196, buffer ); + + free( buffer ); + + TIFFClose(tif); + + /* + * Reopen and test reading using the RGBA interface. + */ + tif = TIFFOpen(srcfile,"r"); + + sz = 128 * 128 * sizeof(uint32); + rgba_buffer = (uint32 *) malloc(sz); + + if (!TIFFReadRGBATile( tif, 1*128, 2*128, rgba_buffer )) { + fprintf( stderr, "TIFFReadRGBATile() returned failure code.\n" ); + return 1; + } + + /* + * Currently TIFFReadRGBATile() just uses JPEGCOLORMODE_RGB so this + * trivally matches the last results. Eventually we should actually + * accomplish it from the YCbCr subsampled buffer ourselves in which + * case the results may be subtly different but similar. + */ + pixel_status |= check_rgba_pixel( 0, 15, 18, 0, 0, 18, 41, 255, 255, + rgba_buffer ); + pixel_status |= check_rgba_pixel( 64, 0, 0, 0, 0, 0, 2, 255, 255, + rgba_buffer ); + pixel_status |= check_rgba_pixel( 512, 5, 6, 34, 36, 182, 196, 255, 255, + rgba_buffer ); + + free( rgba_buffer ); + TIFFClose(tif); + + if (pixel_status) { + exit(1); + } + + exit( 0 ); +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ -- cgit v1.2.3