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-rwxr-xr-xtiff/test/raw_decode.c274
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diff --git a/tiff/test/raw_decode.c b/tiff/test/raw_decode.c
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--- a/tiff/test/raw_decode.c
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-/* $Id: raw_decode.c,v 1.5 2012-12-20 18:08:07 tgl Exp $ */
-
-/*
- * Copyright (c) 2012, Frank Warmerdam <warmerdam@pobox.com>
- *
- * 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 <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#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:
- */