def virtualmem_3():
if gdal.GetConfigOption('SKIP_VIRTUALMEM'):
return 'skip'
try:
from osgeo import gdalnumeric
except:
return 'skip'
if not sys.platform.startswith('linux'):
return 'skip'
for tmpfile in [ 'tmp/virtualmem_3.img', '/vsimem/virtualmem_3.img' ]:
ds = gdal.GetDriverByName('EHdr').Create(tmpfile, 400, 300, 2)
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Write)
ar2 = ds.GetRasterBand(2).GetVirtualMemAutoArray(gdal.GF_Write)
for y in range(ds.RasterYSize):
ar1[y].fill(127)
ar2[y].fill(255)
# We need to destroy the array before dataset destruction
ar1 = None
ar2 = None
ds = None
ds = gdal.Open(tmpfile)
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Read)
ar2 = ds.GetRasterBand(2).GetVirtualMemAutoArray(gdal.GF_Read)
ar_127 = gdalnumeric.empty(ds.RasterXSize)
ar_127.fill(127)
ar_255 = gdalnumeric.empty(ds.RasterXSize)
ar_255.fill(255)
for y in range(ds.RasterYSize):
if not gdalnumeric.array_equal(ar1[y], ar_127):
gdaltest.post_reason('fail')
return 'fail'
if not gdalnumeric.array_equal(ar2[y], ar_255):
gdaltest.post_reason('fail')
return 'fail'
# We need to destroy the array before dataset destruction
ar1 = None
ar2 = None
ds = None
gdal.GetDriverByName('EHdr').Delete(tmpfile)
return 'success'
def virtualmem_3():
if gdal.GetConfigOption('SKIP_VIRTUALMEM'):
return 'skip'
try:
from osgeo import gdalnumeric
except ImportError:
return 'skip'
if not sys.platform.startswith('linux'):
return 'skip'
for tmpfile in ['tmp/virtualmem_3.img', '/vsimem/virtualmem_3.img']:
ds = gdal.GetDriverByName('EHdr').Create(tmpfile, 400, 300, 2)
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Write)
ar2 = ds.GetRasterBand(2).GetVirtualMemAutoArray(gdal.GF_Write)
for y in range(ds.RasterYSize):
ar1[y].fill(127)
ar2[y].fill(255)
# We need to destroy the array before dataset destruction
ar1 = None
ar2 = None
ds = None
ds = gdal.Open(tmpfile)
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Read)
ar2 = ds.GetRasterBand(2).GetVirtualMemAutoArray(gdal.GF_Read)
ar_127 = gdalnumeric.empty(ds.RasterXSize)
ar_127.fill(127)
ar_255 = gdalnumeric.empty(ds.RasterXSize)
ar_255.fill(255)
for y in range(ds.RasterYSize):
if not gdalnumeric.array_equal(ar1[y], ar_127):
gdaltest.post_reason('fail')
return 'fail'
if not gdalnumeric.array_equal(ar2[y], ar_255):
gdaltest.post_reason('fail')
return 'fail'
# We need to destroy the array before dataset destruction
ar1 = None
ar2 = None
ds = None
gdal.GetDriverByName('EHdr').Delete(tmpfile)
return 'success'
def virtualmem_4():
try:
from osgeo import gdalnumeric
except:
return 'skip'
if not sys.platform.startswith('linux'):
return 'skip'
tmpfile = 'tmp/virtualmem_4.tif'
for option in [ 'INTERLEAVE=PIXEL', 'INTERLEAVE=BAND' ]:
try:
os.unlink(tmpfile)
except:
pass
ds = gdal.GetDriverByName('GTiff').Create(tmpfile, 400, 301, 2, options = [option])
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Write)
if gdal.GetLastErrorMsg().find('mmap() failed') >= 0:
ar1 = None
ds = None
return 'skip'
ar1 = None
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Write)
ar1_bis = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Write)
ar2 = ds.GetRasterBand(2).GetVirtualMemAutoArray(gdal.GF_Write)
for y in range(ds.RasterYSize):
ar1[y].fill(127)
ar2[y].fill(255)
val = ar1_bis[0][0]
# We need to destroy the array before dataset destruction
ar1 = None
ar1_bis = None
ar2 = None
ds = None
if val != 127:
gdaltest.post_reason('fail')
print(val)
return 'fail'
ds = gdal.Open(tmpfile)
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Read)
ar2 = ds.GetRasterBand(2).GetVirtualMemAutoArray(gdal.GF_Read)
ar_127 = gdalnumeric.empty(ds.RasterXSize)
ar_127.fill(127)
ar_255 = gdalnumeric.empty(ds.RasterXSize)
ar_255.fill(255)
for y in range(ds.RasterYSize):
if not gdalnumeric.array_equal(ar1[y], ar_127):
gdaltest.post_reason('fail')
ar1 = None
ar2 = None
ds = None
return 'fail'
if not gdalnumeric.array_equal(ar2[y], ar_255):
gdaltest.post_reason('fail')
ar1 = None
ar2 = None
ds = None
return 'fail'
# We need to destroy the array before dataset destruction
ar1 = None
ar2 = None
ds = None
gdal.GetDriverByName('GTiff').Delete(tmpfile)
return 'success'
def virtualmem_4():
if gdal.GetConfigOption('SKIP_VIRTUALMEM'):
return 'skip'
try:
from osgeo import gdalnumeric
except ImportError:
return 'skip'
if not sys.platform.startswith('linux'):
return 'skip'
tmpfile = 'tmp/virtualmem_4.tif'
for option in ['INTERLEAVE=PIXEL', 'INTERLEAVE=BAND']:
try:
os.unlink(tmpfile)
except OSError:
pass
ds = gdal.GetDriverByName('GTiff').Create(tmpfile, 400, 301, 2, options=[option])
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Write)
if gdal.GetLastErrorMsg().find('mmap() failed') >= 0:
ar1 = None
ds = None
return 'skip'
ar1 = None
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Write)
ar1_bis = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Write)
ar2 = ds.GetRasterBand(2).GetVirtualMemAutoArray(gdal.GF_Write)
for y in range(ds.RasterYSize):
ar1[y].fill(127)
ar2[y].fill(255)
val = ar1_bis[0][0]
# We need to destroy the array before dataset destruction
ar1 = None
ar1_bis = None
ar2 = None
ds = None
if val != 127:
gdaltest.post_reason('fail')
print(val)
return 'fail'
ds = gdal.Open(tmpfile)
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Read)
ar2 = ds.GetRasterBand(2).GetVirtualMemAutoArray(gdal.GF_Read)
ar_127 = gdalnumeric.empty(ds.RasterXSize)
ar_127.fill(127)
ar_255 = gdalnumeric.empty(ds.RasterXSize)
ar_255.fill(255)
for y in range(ds.RasterYSize):
if not gdalnumeric.array_equal(ar1[y], ar_127):
gdaltest.post_reason('fail')
ar1 = None
ar2 = None
ds = None
return 'fail'
if not gdalnumeric.array_equal(ar2[y], ar_255):
gdaltest.post_reason('fail')
ar1 = None
ar2 = None
ds = None
return 'fail'
# We need to destroy the array before dataset destruction
ar1 = None
ar2 = None
ds = None
gdal.GetDriverByName('GTiff').Delete(tmpfile)
return 'success'
def test_virtualmem_4():
if gdal.GetConfigOption('SKIP_VIRTUALMEM'):
pytest.skip()
try:
from osgeo import gdalnumeric
except ImportError:
pytest.skip()
if not sys.platform.startswith('linux'):
pytest.skip()
tmpfile = 'tmp/virtualmem_4.tif'
for option in ['INTERLEAVE=PIXEL', 'INTERLEAVE=BAND']:
gdal.Unlink(tmpfile)
ds = gdal.GetDriverByName('GTiff').Create(tmpfile, 400, 301, 2, options=[option])
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Write)
if gdal.GetLastErrorMsg().find('mmap() failed') >= 0:
ar1 = None
ds = None
pytest.skip()
ar1 = None
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Write)
ar1_bis = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Write)
ar2 = ds.GetRasterBand(2).GetVirtualMemAutoArray(gdal.GF_Write)
for y in range(ds.RasterYSize):
ar1[y].fill(127)
ar2[y].fill(255)
val = ar1_bis[0][0]
# We need to destroy the array before dataset destruction
ar1 = None
ar1_bis = None
ar2 = None
ds = None
assert val == 127
ds = gdal.Open(tmpfile)
ar1 = ds.GetRasterBand(1).GetVirtualMemAutoArray(gdal.GF_Read)
ar2 = ds.GetRasterBand(2).GetVirtualMemAutoArray(gdal.GF_Read)
ar_127 = gdalnumeric.empty(ds.RasterXSize)
ar_127.fill(127)
ar_255 = gdalnumeric.empty(ds.RasterXSize)
ar_255.fill(255)
for y in range(ds.RasterYSize):
if not gdalnumeric.array_equal(ar1[y], ar_127):
ar1 = None
ar2 = None
ds = None
pytest.fail()
if not gdalnumeric.array_equal(ar2[y], ar_255):
ar1 = None
ar2 = None
ds = None
pytest.fail()
# We need to destroy the array before dataset destruction
ar1 = None
ar2 = None
ds = None
gdal.GetDriverByName('GTiff').Delete(tmpfile)