[devel] Enable the strip16 tests in pngvalid

This commit is contained in:
John Bowler 2010-12-08 16:26:21 -06:00 committed by Glenn Randers-Pehrson
parent ba851ccd9f
commit b54498edea
3 changed files with 135 additions and 58 deletions

View File

@ -1169,10 +1169,20 @@ typedef struct png_modifier
/* Whether or not to interlace. */
int interlace_type :9; /* int, but must store '1' */
/* Run the standard tests? */
unsigned int test_standard :1;
/* When to use the use_input_precision option: */
unsigned int use_input_precision :1;
unsigned int use_input_precision_sbit :1;
unsigned int use_input_precision_16to8 :1;
/* Which gamma tests to run: */
unsigned int test_threshold :1;
unsigned int test_transform :1; /* main tests */
unsigned int test_sbit :1;
unsigned int test_strip16 :1;
unsigned int log :1; /* Log max error */
/* Buffer information, the buffer size limits the size of the chunks that can
@ -1235,9 +1245,14 @@ modifier_init(png_modifier *pm)
pm->error_gray_2 = pm->error_gray_4 = pm->error_gray_8 = 0;
pm->error_gray_16 = pm->error_color_8 = pm->error_color_16 = 0;
pm->interlace_type = PNG_INTERLACE_NONE;
pm->test_standard = 1;
pm->use_input_precision = 0;
pm->use_input_precision_sbit = 0;
pm->use_input_precision_16to8 = 0;
pm->test_threshold = 1;
pm->test_transform = 1;
pm->test_sbit = 1;
pm->test_strip16 = 1;
pm->log = 0;
/* Rely on the memset for all the other fields - there are no pointers */
@ -2792,7 +2807,7 @@ gamma_info_imp(gamma_display *dp, png_structp pp, png_infop pi)
* PNG_MAX_GAMMA_8 when doing the following.
*/
if (dp->strip16)
# ifdef PNG_READ_16_TO_8
# ifdef PNG_READ_16_TO_8_SUPPORTED
png_set_strip_16(pp);
# else
png_error(pp, "strip16 (16 to 8 bit conversion) not supported");
@ -3391,7 +3406,7 @@ static void perform_gamma_sbit_tests(png_modifier *pm, int speed)
/* Note that this requires a 16 bit source image but produces 8 bit output, so
* we only need the 16bit write support.
*/
#ifdef PNG_16_TO_8_SUPPORTED
#ifdef PNG_READ_16_TO_8_SUPPORTED
static void perform_gamma_strip16_tests(png_modifier *pm, int speed)
{
# ifndef PNG_MAX_GAMMA_8
@ -3450,7 +3465,7 @@ static void
perform_gamma_test(png_modifier *pm, int speed, int summary)
{
/* First some arbitrary no-transform tests: */
if (!speed)
if (!speed && pm->test_threshold)
{
perform_gamma_threshold_tests(pm);
@ -3459,6 +3474,8 @@ perform_gamma_test(png_modifier *pm, int speed, int summary)
}
/* Now some real transforms. */
if (pm->test_transform)
{
perform_gamma_transform_tests(pm, speed);
if (summary)
@ -3485,10 +3502,13 @@ perform_gamma_test(png_modifier *pm, int speed, int summary)
printf(" 16 bit color: %.5f\n", pm->error_color_16);
#endif
}
}
/* The sbit tests produce much larger errors: */
pm->error_gray_2 = pm->error_gray_4 = pm->error_gray_8 = pm->error_gray_16 =
pm->error_color_8 = pm->error_color_16 = 0;
if (pm->test_sbit)
{
pm->error_gray_2 = pm->error_gray_4 = pm->error_gray_8 =
pm->error_gray_16 = pm->error_color_8 = pm->error_color_16 = 0;
perform_gamma_sbit_tests(pm, speed);
if (summary)
@ -3503,16 +3523,19 @@ perform_gamma_test(png_modifier *pm, int speed, int summary)
printf(" 8 bit color: %.5f\n", pm->error_color_8);
}
#ifdef DO_16BIT
#ifdef DO_16BIT
printf(" 16 bit gray: %.5f\n", pm->error_gray_16);
printf(" 16 bit color: %.5f\n", pm->error_color_16);
#endif
#endif
}
}
#ifdef PNG_16_TO_8_SUPPORTED
#ifdef PNG_READ_16_TO_8_SUPPORTED
if (pm->test_strip16)
{
/* The 16 to 8 bit strip operations: */
pm->error_gray_2 = pm->error_gray_4 = pm->error_gray_8 = pm->error_gray_16 =
pm->error_color_8 = pm->error_color_16 = 0;
pm->error_gray_2 = pm->error_gray_4 = pm->error_gray_8 =
pm->error_gray_16 = pm->error_color_8 = pm->error_color_16 = 0;
perform_gamma_strip16_tests(pm, speed);
if (summary)
@ -3521,6 +3544,7 @@ perform_gamma_test(png_modifier *pm, int speed, int summary)
printf(" 16 bit gray: %.5f\n", pm->error_gray_16);
printf(" 16 bit color: %.5f\n", pm->error_color_16);
}
}
#endif
}
@ -3577,7 +3601,7 @@ int main(int argc, PNG_CONST char **argv)
*/
pm.maxout8 = .1; /* Arithmetic error in *encoded* value */
pm.maxabs8 = .00005; /* 1/20000 */
pm.maxpc8 = .499; /* I.e. .499% fractional error */
pm.maxpc8 = .499; /* I.e., .499% fractional error */
pm.maxout16 = .499; /* Error in *encoded* value */
pm.maxabs16 = .00005;/* 1/20000 */
@ -3610,11 +3634,27 @@ int main(int argc, PNG_CONST char **argv)
pm.this.treat_warnings_as_errors = 0;
else if (strcmp(*argv, "--speed") == 0)
pm.this.speed = 1, pm.ngammas = (sizeof gammas)/(sizeof gammas[0]);
pm.this.speed = 1, pm.ngammas = (sizeof gammas)/(sizeof gammas[0]),
pm.test_standard = 0;
else if (strcmp(*argv, "--nostandard") == 0)
pm.test_standard = 0;
else if (strcmp(*argv, "--nogamma") == 0)
pm.ngammas = 0;
else if (strcmp(*argv, "--nogamma-threshold") == 0)
pm.test_threshold = 0;
else if (strcmp(*argv, "--nogamma-transform") == 0)
pm.test_transform = 0;
else if (strcmp(*argv, "--nogamma-sbit") == 0)
pm.test_sbit = 0;
else if (strcmp(*argv, "--nogamma-16-to-8") == 0)
pm.test_strip16 = 0;
else if (strcmp(*argv, "--progressive-read") == 0)
pm.this.progressive = 1;
@ -3669,13 +3709,15 @@ int main(int argc, PNG_CONST char **argv)
make_standard_images(&pm.this);
/* Perform the standard and gamma tests. */
if (!pm.this.speed)
if (pm.test_standard)
{
perform_standard_test(&pm);
perform_error_test(&pm);
}
perform_gamma_test(&pm, pm.this.speed != 0, summary && !pm.this.speed);
if (pm.ngammas > 0)
perform_gamma_test(&pm, pm.this.speed != 0,
summary && !pm.this.speed);
}
Catch(fault)

View File

@ -1,3 +1,22 @@
#!/bin/sh
#
# Run a sequence of gamma tests quietly
err=0
for gamma in threshold transform sbit 16-to-8
do
opts=
test "$gamma" = threshold || opts="$opts --nogamma-threshold"
test "$gamma" = transform || opts="$opts --nogamma-transform"
test "$gamma" = sbit || opts="$opts --nogamma-sbit"
test "$gamma" = 16-to-8 || opts="$opts --nogamma-16-to-8"
./pngvalid -q
if ./pngvalid -q --nostandard $opts
then
echo "PASS:" pngvalid "(gamma-$gamma)"
else
echo "FAIL:" pngvalid "(gamma-$gamma)"
err=1
fi
done
exit $err

View File

@ -1,3 +1,19 @@
#!/bin/sh
#
# Run a sequence of tests quietly, without the slow
# gamma tests
err=0
./pngvalid -q --speed
for opts in "" --progressive-read --interlace \
"--progressive-read --interlace"
do
if ./pngvalid -q --nogamma $opts
then
echo "PASS:" pngvalid --nogamma $opts
else
echo "FAIL:" pngvalid --nogamma $opts
err=1
fi
done
exit $err