def glGetTexImage( target, level,format,type, outputType=str ):
"""Get a texture-level as an image
target -- enum constant for the texture engine to be read
level -- the mip-map level to read
format -- image format to read out the data
type -- data-type into which to read the data
outputType -- default (str) provides string output of the
results iff OpenGL.UNSIGNED_BYTE_IMAGES_AS_STRING is True
and type == GL_UNSIGNED_BYTE. Any other value will cause
output in the default array output format.
returns the pixel data array in the format defined by the
format, type and outputType
"""
from OpenGL.GL import glget
dims = [glget.glGetTexLevelParameteriv( target, level, GL_1_1.GL_TEXTURE_WIDTH )]
if target != GL_1_1.GL_TEXTURE_1D:
dims.append( glget.glGetTexLevelParameteriv( target, level, GL_1_1.GL_TEXTURE_HEIGHT ) )
if target != GL_1_1.GL_TEXTURE_2D:
dims.append( glget.glGetTexLevelParameteriv( target, level, GL_1_2.GL_TEXTURE_DEPTH ) )
array = images.SetupPixelRead( format, tuple(dims), type )
arrayType = arrays.GL_CONSTANT_TO_ARRAY_TYPE[ images.TYPE_TO_ARRAYTYPE.get(type,type) ]
GL_1_1.glGetTexImage(
target, level, format, type, ctypes.c_void_p( arrayType.dataPointer(array))
)
if outputType is str:
return images.returnFormat( array, type )
else:
return array
def glGetTexImage(target, level, format, type, array=None, outputType=bytes):
"""Get a texture-level as an image
target -- enum constant for the texture engine to be read
level -- the mip-map level to read
format -- image format to read out the data
type -- data-type into which to read the data
array -- optional array/offset into which to store the value
outputType -- default (bytes) provides string output of the
results iff OpenGL.UNSIGNED_BYTE_IMAGES_AS_STRING is True
and type == GL_UNSIGNED_BYTE. Any other value will cause
output in the default array output format.
returns the pixel data array in the format defined by the
format, type and outputType
"""
arrayType = arrays.GL_CONSTANT_TO_ARRAY_TYPE[images.TYPE_TO_ARRAYTYPE.get(
type, type)]
if array is None:
dims = _get_texture_level_dims(target, level)
array = imageData = images.SetupPixelRead(format, tuple(dims), type)
owned = True
else:
if isinstance(array, integer_types):
imageData = ctypes.c_void_p(array)
else:
array = arrayType.asArray(array)
imageData = arrayType.voidDataPointer(array)
owned = False
GL_1_1.glGetTexImage(target, level, format, type, imageData)
if outputType is bytes:
return images.returnFormat(array, type)
else:
return array
def glGetTexImage(target,
level,
format,
type,
array=None,
outputType=bytes):
"""bug fixed overwirte version"""
arrayType = arrays.GL_CONSTANT_TO_ARRAY_TYPE[
images.TYPE_TO_ARRAYTYPE.get(type, type)]
if array is None:
dims = OpenGLContext._get_texture_level_dims(target, level)
imageData = images.SetupPixelRead(format, tuple(dims), type)
array = imageData
else:
if isinstance(array, integer_types):
imageData = ctypes.c_void_p(array)
else:
array = arrayType.asArray(array)
imageData = arrayType.voidDataPointer(array)
GL_1_1.glGetTexImage(target, level, format, type, imageData)
if outputType is bytes:
return images.returnFormat(array, type)
else:
return array
def glGetTexImage(target, level, format, type, array=None, outputType=bytes):
"""Get a texture-level as an image
target -- enum constant for the texture engine to be read
level -- the mip-map level to read
format -- image format to read out the data
type -- data-type into which to read the data
array -- optional array/offset into which to store the value
outputType -- default (bytes) provides string output of the
results iff OpenGL.UNSIGNED_BYTE_IMAGES_AS_STRING is True
and type == GL_UNSIGNED_BYTE. Any other value will cause
output in the default array output format.
returns the pixel data array in the format defined by the
format, type and outputType
"""
arrayType = arrays.GL_CONSTANT_TO_ARRAY_TYPE[images.TYPE_TO_ARRAYTYPE.get(type, type)]
if array is None:
dims = _get_texture_level_dims(target, level)
array = imageData = images.SetupPixelRead(format, tuple(dims), type)
owned = True
else:
if isinstance(array, integer_types):
imageData = ctypes.c_void_p(array)
else:
array = arrayType.asArray(array)
imageData = arrayType.voidDataPointer(array)
owned = False
GL_1_1.glGetTexImage(target, level, format, type, imageData)
if outputType is bytes:
return images.returnFormat(array, type)
else:
return array
def glGetTexImage( target, level,format,type=type ):
"""Get a texture-level as an image"""
from OpenGL.GL import glget
dims = [glget.glGetTexLevelParameteriv( target, level, GL_1_1.GL_TEXTURE_WIDTH )]
if target != GL_1_1.GL_TEXTURE_1D:
dims.append( glget.glGetTexLevelParameteriv( target, level, GL_1_1.GL_TEXTURE_HEIGHT ) )
if target != GL_1_1.GL_TEXTURE_2D:
dims.append( glget.glGetTexLevelParameteriv( target, level, GL_1_2.GL_TEXTURE_DEPTH ) )
array = images.SetupPixelRead( format, tuple(dims), type )
arrayType = arrays.GL_CONSTANT_TO_ARRAY_TYPE[ images.TYPE_TO_ARRAYTYPE.get(type,type) ]
GL_1_1.glGetTexImage(
target, level, format, type, ctypes.c_void_p( arrayType.dataPointer(array))
)
return array
def glGetTexImage(target, level, format, type=type):
"""Get a texture-level as an image"""
from OpenGL.GL import glget
dims = [
glget.glGetTexLevelParameteriv(target, level,
GL_1_1.GL_TEXTURE_WIDTH)
]
if target != GL_1_1.GL_TEXTURE_1D:
dims.append(
glget.glGetTexLevelParameteriv(target, level,
GL_1_1.GL_TEXTURE_HEIGHT))
if target != GL_1_1.GL_TEXTURE_2D:
dims.append(
glget.glGetTexLevelParameteriv(target, level,
GL_1_2.GL_TEXTURE_DEPTH))
array = images.SetupPixelRead(format, tuple(dims), type)
arrayType = arrays.GL_CONSTANT_TO_ARRAY_TYPE[
images.TYPE_TO_ARRAYTYPE.get(type, type)]
GL_1_1.glGetTexImage(target, level, format, type,
ctypes.c_void_p(arrayType.dataPointer(array)))
return array
def glGetTexImage(target, level, format, type, outputType=str):
"""Get a texture-level as an image
target -- enum constant for the texture engine to be read
level -- the mip-map level to read
format -- image format to read out the data
type -- data-type into which to read the data
outputType -- default (str) provides string output of the
results iff OpenGL.UNSIGNED_BYTE_IMAGES_AS_STRING is True
and type == GL_UNSIGNED_BYTE. Any other value will cause
output in the default array output format.
returns the pixel data array in the format defined by the
format, type and outputType
"""
from OpenGL.GL import glget
dims = [
glget.glGetTexLevelParameteriv(target, level, GL_1_1.GL_TEXTURE_WIDTH)
]
if target != GL_1_1.GL_TEXTURE_1D:
dims.append(
glget.glGetTexLevelParameteriv(target, level,
GL_1_1.GL_TEXTURE_HEIGHT))
if target != GL_1_1.GL_TEXTURE_2D:
dims.append(
glget.glGetTexLevelParameteriv(target, level,
GL_1_2.GL_TEXTURE_DEPTH))
array = images.SetupPixelRead(format, tuple(dims), type)
arrayType = arrays.GL_CONSTANT_TO_ARRAY_TYPE[images.TYPE_TO_ARRAYTYPE.get(
type, type)]
GL_1_1.glGetTexImage(target, level, format, type,
ctypes.c_void_p(arrayType.dataPointer(array)))
if outputType is str:
return images.returnFormat(array, type)
else:
return array
