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fix some run-time errors from clang 

Travis is now running with some amount of run-time checking enabled and
it spotted a couple of harmless things.
This commit is contained in:
John Cupitt 2019-12-05 14:14:27 +00:00
parent a382359e65
commit a50405c1f7
5 changed files with 53 additions and 36 deletions
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3
libvips/arithmetic/hough_circle.c
View File

@ -150,11 +150,12 @@ vips_hough_circle_vote_endpoints_clip( VipsImage *image,
int y, int x1, int x2, int quadrant, void *client )
{
int r = *((int *) client);
guint *line = (guint *) VIPS_IMAGE_ADDR( image, 0, y ) + r;
int b = image->Bands;
if( y >= 0 &&
y < image->Ysize ) {
guint *line = (guint *) VIPS_IMAGE_ADDR( image, 0, y ) + r;
if( x1 >=0 &&
x1 < image->Xsize )
line[x1 * b] += 1;

7
libvips/create/mask_butterworth.c
View File

@ -64,9 +64,12 @@ vips_mask_butterworth_point( VipsMask *mask, double dx, double dy )
double cnst = (1.0 / ac) - 1.0;
double fc2 = fc * fc;
double dist2 = fc2 / (dx * dx + dy * dy);
double d = dx * dx + dy * dy;
return( 1.0 / (1.0 + cnst * pow( dist2, order )) );
if( d == 0 )
return( 0 );
else
return( 1.0 / (1.0 + cnst * pow( fc2 / d, order )) );
}
static void

35
libvips/draw/draw_flood.c
View File

@ -297,7 +297,6 @@ flood_scanline( Flood *flood, int x, int y, int *x1, int *x2 )
{
const int width = flood->test->Xsize;
VipsPel *p;
int i;
g_assert( flood_connected( flood,
@ -309,23 +308,33 @@ flood_scanline( Flood *flood, int x, int y, int *x1, int *x2 )
* pixel is unpainted, we know all the intervening pixels must be
* unpainted too.
*/
p = VIPS_IMAGE_ADDR( flood->test, x + 1, y );
for( i = x + 1; i < width; i++ ) {
if( !flood_connected( flood, p ) )
break;
p += flood->tsize;
if( x < width ) {
VipsPel *p = VIPS_IMAGE_ADDR( flood->test, x + 1, y );
for( i = x + 1; i < width; i++ ) {
if( !flood_connected( flood, p ) )
break;
p += flood->tsize;
}
*x2 = i - 1;
}
*x2 = i - 1;
else
*x2 = width;
/* Search left.
*/
p = VIPS_IMAGE_ADDR( flood->test, x - 1, y );
for( i = x - 1; i >= 0; i-- ) {
if( !flood_connected( flood, p ) )
break;
p -= flood->tsize;
if( x > 0 ) {
VipsPel *p = VIPS_IMAGE_ADDR( flood->test, x - 1, y );
for( i = x - 1; i >= 0; i-- ) {
if( !flood_connected( flood, p ) )
break;
p -= flood->tsize;
}
*x1 = i + 1;
}
*x1 = i + 1;
else
*x1 = 0;
/* Paint the range we discovered.
*/

14
libvips/iofuncs/streami.c
View File

@ -654,7 +654,8 @@ vips_streami_read( VipsStreami *streami, void *buffer, size_t length )
SANITY( streami );
if( vips_streami_unminimise( streami ) )
if( vips_streami_unminimise( streami ) ||
vips_streami_test_features( streami ) )
return( -1 );
bytes_read = 0;
@ -849,8 +850,9 @@ vips_streami_descriptor_to_memory( VipsStreami *streami )
gboolean
vips_streami_is_mappable( VipsStreami *streami )
{
if( vips_streami_unminimise( streami ) )
return( FALSE );
if( vips_streami_unminimise( streami ) ||
vips_streami_test_features( streami ) )
return( -1 );
/* Already a memory object, or there's a filename we can map, or
* there's a seekable descriptor.
@ -881,7 +883,8 @@ vips_streami_map( VipsStreami *streami, size_t *length_out )
SANITY( streami );
if( vips_streami_unminimise( streami ) )
if( vips_streami_unminimise( streami ) ||
vips_streami_test_features( streami ) )
return( NULL );
if( !streami->data ) {
@ -932,7 +935,8 @@ vips_streami_seek( VipsStreami *streami, gint64 offset, int whence )
SANITY( streami );
if( vips_streami_unminimise( streami ) )
if( vips_streami_unminimise( streami ) ||
vips_streami_test_features( streami ) )
return( -1 );
if( streami->data ) {

30
test/test-suite/test_create.py
View File

@ -121,8 +121,8 @@ class TestCreate:
sigma = im.deviate()
mean = im.avg()
assert pytest.approx(sigma, 0.2) == 10
assert pytest.approx(mean, 0.2) == 100
assert sigma == pytest.approx(10, abs=0.2)
assert mean == pytest.approx(100, abs=0.2)
def test_grey(self):
im = pyvips.Image.grey(100, 90)
@ -197,11 +197,11 @@ class TestCreate:
p = im(255, 0)
assert_almost_equal_objects(p, [1, 1, 1])
p = im(0.2 * 255, 0)
assert pytest.approx(p[0], 0.1) == 0.1
assert p[0] == pytest.approx(0.1, abs=0.1)
p = im(0.3 * 255, 0)
assert pytest.approx(p[1], 0.1) == 0.1
assert p[1] == pytest.approx(0.1, abs=0.1)
p = im(0.1 * 255, 0)
assert pytest.approx(p[2], 0.1) == 0.1
assert p[2] == pytest.approx(0.1, abs=0.1)
def test_logmat(self):
im = pyvips.Image.logmat(1, 0.1)
@ -237,7 +237,7 @@ class TestCreate:
assert im.height == 128
assert im.bands == 1
assert im.format == pyvips.BandFormat.FLOAT
assert pytest.approx(im.max(), 0.01) == 1
assert im.max() == pytest.approx(1, abs=0.01)
p = im(32, 32)
assert p[0] == 1.0
@ -275,7 +275,7 @@ class TestCreate:
assert im.height == 128
assert im.bands == 1
assert im.format == pyvips.BandFormat.FLOAT
assert pytest.approx(im.min(), 0.01) == 0
assert im.min() == pytest.approx(0, abs=0.01)
p = im(0, 0)
assert p[0] == 0.0
v, x, y = im.maxpos()
@ -288,7 +288,7 @@ class TestCreate:
assert im.height == 128
assert im.bands == 1
assert im.format == pyvips.BandFormat.UCHAR
assert pytest.approx(im.min(), 0.01) == 0
assert im.min() == pytest.approx(0, abs=0.01)
p = im(64, 64)
assert p[0] == 255
@ -300,7 +300,7 @@ class TestCreate:
assert im.bands == 1
assert im.format == pyvips.BandFormat.FLOAT
p = im(45, 0)
assert pytest.approx(p[0], 0.0001) == 1.0
assert p[0] == pytest.approx(1.0, abs=0.0001)
v, x, y = im.minpos()
assert x == 64
assert y == 64
@ -318,7 +318,7 @@ class TestCreate:
assert im.height == 128
assert im.bands == 1
assert im.format == pyvips.BandFormat.FLOAT
assert pytest.approx(im.max(), 0.01) == 1
assert im.max() == pytest.approx(1, abs=0.01)
p = im(32, 32)
assert p[0] == 1.0
@ -329,7 +329,7 @@ class TestCreate:
assert im.height == 128
assert im.bands == 1
assert im.format == pyvips.BandFormat.FLOAT
assert pytest.approx(im.min(), 0.01) == 0
assert im.min() == pytest.approx(0, abs=0.01)
p = im(0, 0)
assert p[0] == 0.0
@ -341,7 +341,7 @@ class TestCreate:
assert im.bands == 1
assert im.format == pyvips.BandFormat.FLOAT
p = im(45, 0)
assert pytest.approx(p[0], 0.001) == 1.0
assert p[0] == pytest.approx(1.0, abs=0.001)
def test_mask_ideal_band(self):
im = pyvips.Image.mask_ideal_band(128, 128, 0.5, 0.5, 0.7)
@ -349,7 +349,7 @@ class TestCreate:
assert im.height == 128
assert im.bands == 1
assert im.format == pyvips.BandFormat.FLOAT
assert pytest.approx(im.max(), 0.01) == 1
assert im.max() == pytest.approx(1, abs=0.01)
p = im(32, 32)
assert p[0] == 1.0
@ -360,7 +360,7 @@ class TestCreate:
assert im.height == 128
assert im.bands == 1
assert im.format == pyvips.BandFormat.FLOAT
assert pytest.approx(im.min(), 0.01) == 0
assert im.min() == pytest.approx(0, abs=0.01)
p = im(0, 0)
assert p[0] == 0.0
@ -372,7 +372,7 @@ class TestCreate:
assert im.bands == 1
assert im.format == pyvips.BandFormat.FLOAT
p = im(45, 0)
assert pytest.approx(p[0], 0.001) == 1.0
assert p[0] == pytest.approx(1, abs=0.001)
def test_sines(self):
im = pyvips.Image.sines(128, 128)