def activate(self):
""" Activate the object on GPU """
if self._base is not None:
self._base.activate()
else:
GLObject.activate(self)
def __init__(self, program, name, gtype):
""" Initialize the data into default state """
# Make sure variable type is allowed (for ES 2.0 shader)
if gtype not in [
gl.GL_FLOAT, gl.GL_FLOAT_VEC2, gl.GL_FLOAT_VEC3,
gl.GL_FLOAT_VEC4, gl.GL_INT, gl.GL_BOOL, gl.GL_FLOAT_MAT2,
gl.GL_FLOAT_MAT3, gl.GL_FLOAT_MAT4, gl.GL_SAMPLER_2D,
gl.GL_SAMPLER_CUBE
]:
raise VariableException("Unknown variable type")
GLObject.__init__(self)
# Program this variable belongs to
self._program = program
# Name of this variable in the program
self._name = name
# GL type
self._gtype = gtype
# CPU data
self._data = None
# Whether this variable is active
self._active = True
# Location of the variable in the program slots
self._location = 0
def deactivate(self):
""" Deactivate the object on GPU """
if self._base is not None:
self._base.deactivate()
else:
GLObject.deactivate(self)
def __init__(self, program, name, gtype):
""" Initialize the data into default state """
# Make sure variable type is allowed (for ES 2.0 shader)
if gtype not in [gl.GL_FLOAT, gl.GL_FLOAT_VEC2,
gl.GL_FLOAT_VEC3, gl.GL_FLOAT_VEC4,
gl.GL_INT, gl.GL_BOOL,
gl.GL_FLOAT_MAT2, gl.GL_FLOAT_MAT3,
gl.GL_FLOAT_MAT4, gl.GL_SAMPLER_1D,
gl.GL_SAMPLER_2D]:
raise TypeError("Unknown variable type")
GLObject.__init__(self)
# Program this variable belongs to
self._program = program
# Name of this variable in the program
self._name = name
# Build dtype
size, _, base = gl_typeinfo[gtype]
self._dtype = (name,base,size)
# GL type
self._gtype = gtype
# CPU data
self._data = None
# Whether this variable is active
self._active = True
def __init__(self, program, name, gtype):
""" Initialize the data into default state """
# Make sure variable type is allowed (for ES 2.0 shader)
if gtype not in [ gl.GL_FLOAT, gl.GL_FLOAT_VEC2,
gl.GL_FLOAT_VEC3, gl.GL_FLOAT_VEC4,
gl.GL_INT, gl.GL_BOOL,
gl.GL_FLOAT_MAT2, gl.GL_FLOAT_MAT3,
gl.GL_FLOAT_MAT4, gl.GL_SAMPLER_2D,
gl.GL_SAMPLER_CUBE]:
raise VariableException("Unknown variable type")
GLObject.__init__(self)
# Program this variable belongs to
self._program = program
# Name of this variable in the program
self._name = name
# GL type
self._gtype = gtype
# CPU data
self._data = None
# Whether this variable is active
self._active = True
# Location of the variable in the program slots
self._location = 0
def __init__(self, verts=[], frags=[], count=0):
"""Initialize the program and register shaders to be linked.
Parameters
----------
verts : list of vertex shaders
Vertex shaders to be used by this program
frags : list of fragment shaders
Fragment shaders to be used by this program
count : int
Number of vertices this program will use
Note
----
If several vertex shaders are specified, only one can contain the main
function.
If several fragment shaders are specified, only one can contain the main
function.
"""
GLObject.__init__(self)
self._count = count
self._buffer = None
# Get all vertex shaders
self._verts = []
if type(verts) in [str, VertexShader]:
verts = [verts]
for shader in verts:
if type(shader) is str:
self._verts.append(VertexShader(shader))
elif shader not in self._verts:
self._verts.append(shader)
# Get all fragment shaders
self._frags = []
if type(frags) in [str, FragmentShader]:
frags = [frags]
for shader in frags:
if type(shader) is str:
self._frags.append(FragmentShader(shader))
elif shader not in self._frags:
self._frags.append(shader)
# Build uniforms and attributes
self._build_uniforms()
self._build_attributes()
# Build associated structured vertex buffer if count is given
if self._count > 0:
dtype = []
for attribute in self._attributes.values():
dtype.append(attribute.dtype)
self._buffer = VertexBuffer(np.zeros(self._count, dtype=dtype))
self.bind(self._buffer)
def update(self):
""" Update the object in GPU """
if self._base is not None:
self._base.update()
else:
GLObject.update(self)
def deactivate(self):
""" Deactivate the object on GPU """
if self._base is not None:
self._base.deactivate()
else:
GLObject.deactivate(self)
def activate(self):
""" Activate the object on GPU """
if self._base is not None:
self._base.activate()
else:
GLObject.activate(self)
def update(self):
""" Update the object in GPU """
if self._base is not None:
self._base.update()
else:
GLObject.update(self)
def __init__(self, code=None):
"""
Initialize the shader and get code if possible.
Parameters
----------
code: str
code can be a filename or the actual code
"""
GLObject.__init__(self)
self._code = None
self._source = None
if code is not None:
self._set_code(code)
def __init__(self, code=None):
"""
Initialize the shader and get code if possible.
Parameters
----------
code: str
code can be a filename or the actual code
"""
GLObject.__init__(self)
self._code = None
self._source = None
if code is not None:
self._set_code(code)
def __init__(self,
data=None,
target=gl.GL_ARRAY_BUFFER,
nbytes=0,
resizeable=True):
""" Initialize buffer
Parameters
----------
target : GLenum
gl.GL_ARRAY_BUFFER or gl.GL_ELEMENT_ARRAY_BUFFER
data : ndarray
Buffer data
nbytes : int
Buffer byte size
resizeable : boolean
Indicates whether buffer is resizeable
"""
GLObject.__init__(self)
self._need_resize = True
self._resizeable = resizeable
self._views = []
self._valid = True
# Store and check target
if target not in (gl.GL_ARRAY_BUFFER, gl.GL_ELEMENT_ARRAY_BUFFER):
raise ValueError("Invalid target for buffer object")
self._target = target
# Bytesize of buffer in GPU memory
self._nbytes = nbytes
# Buffer usage (GL_STATIC_DRAW, G_STREAM_DRAW or GL_DYNAMIC_DRAW)
self._usage = gl.GL_DYNAMIC_DRAW
# Set data
self._pending_data = []
if data is not None:
data = np.array(data, copy=True)
self._nbytes = data.nbytes
self.set_data(data, copy=True)
def __init__(self, verts=[], frags=[]):
"""Initialize the program and register shaders to be linked.
Parameters
----------
verts : list of vertex shaders
frags : list of fragment shaders
Note
----
If several vertex shaders are specified, only one can contain the main
function.
If several fragment shaders are specified, only one can contain the main
function.
"""
GLObject.__init__(self)
# Get all vertex shaders
self._verts = []
if type(verts) in [str, VertexShader]:
verts = [verts]
for shader in verts:
if type(shader) is str:
self._verts.append(VertexShader(shader))
elif shader not in self._verts:
self._verts.append(shader)
# Get all fragment shaders
self._frags = []
if type(frags) in [str, FragmentShader]:
frags = [frags]
for shader in frags:
if type(shader) is str:
self._frags.append(FragmentShader(shader))
elif shader not in self._frags:
self._frags.append(shader)
# Build uniforms and attributes
self.build_uniforms()
self.build_attributes()
def __init__(self, verts=[], frags=[]):
"""Initialize the program and register shaders to be linked.
Parameters
----------
verts : list of vertex shaders
frags : list of fragment shaders
Note
----
If several vertex shaders are specified, only one can contain the main
function.
If several fragment shaders are specified, only one can contain the main
function.
"""
GLObject.__init__(self)
# Get all vertex shaders
self._verts = []
if type(verts) in [str, VertexShader]:
verts = [verts]
for shader in verts:
if type(shader) is str:
self._verts.append(VertexShader(shader))
elif shader not in self._verts:
self._verts.append(shader)
# Get all fragment shaders
self._frags = []
if type(frags) in [str, FragmentShader]:
frags = [frags]
for shader in frags:
if type(shader) is str:
self._frags.append(FragmentShader(shader))
elif shader not in self._frags:
self._frags.append(shader)
# Build uniforms and attributes
self.build_uniforms()
self.build_attributes()
def test_init_default(self):
O = GLObject()
assert O._handle == -1
assert O._target == None
assert O._need_create == True
assert O._need_update == True
assert O._need_delete == False
assert O._id > 0
assert O._id == GLObject._idcount
def __init__(self, data=None, target=gl.GL_ARRAY_BUFFER, nbytes=0, resizeable=True):
""" Initialize buffer
Parameters
----------
target : GLenum
gl.GL_ARRAY_BUFFER or gl.GL_ELEMENT_ARRAY_BUFFER
data : ndarray
Buffer data
nbytes : int
Buffer byte size
resizeable : boolean
Indicates whether buffer is resizeable
"""
GLObject.__init__(self)
self._need_resize = True
self._resizeable = resizeable
self._views = []
self._valid = True
# Store and check target
if target not in (gl.GL_ARRAY_BUFFER, gl.GL_ELEMENT_ARRAY_BUFFER):
raise ValueError("Invalid target for buffer object")
self._target = target
# Bytesize of buffer in GPU memory
self._nbytes = nbytes
# Buffer usage (GL_STATIC_DRAW, G_STREAM_DRAW or GL_DYNAMIC_DRAW)
self._usage = gl.GL_DYNAMIC_DRAW
# Set data
self._pending_data = []
if data is not None:
data = np.array(data,copy=True)
self._nbytes = data.nbytes
self.set_data(data,copy=True)
def __init__(self, target, code=None):
"""
Initialize the shader and get code if possible.
Parameters
----------
code: str
code can be a filename or the actual code
"""
GLObject.__init__(self)
if target not in [gl.GL_VERTEX_SHADER, gl.GL_FRAGMENT_SHADER]:
raise ValueError("Shader target must be vertex or fragment")
self._target = target
self._code = None
self._source = None
if code is not None:
self.code = code
def __init__(self, data=None):
""" Initialize the data buffer """
GLObject.__init__(self)
# CPU data
self._data = None
# Size of buffer in terms of element
self._size = 0
# Number of bytes separating two consecutive values
self._stride = 0
# Where does the actual data start relative to buffer start
self._offset = 0
# Element type
self._gtype = 0
# Set data if any
if data is not None:
self.set_data(data)
def __init__(self, data=None):
""" Initialize the data buffer """
GLObject.__init__(self)
# CPU data
self._data = None
# Size of buffer in terms of element
self._size = 0
# Number of bytes separating two consecutive values
self._stride = 0
# Where does the actual data start relative to buffer start
self._offset = 0
# Element type
self._gtype = 0
# Set data if any
if data is not None:
self.set_data(data)
def __init__(self, data=None, shape=(), dtype=None, base=None, target=None,
offset=None, store=True, copy=False, resizeable=True):
"""
Initialize the texture
Parameters
----------
target : GLEnum
gl.GL_TEXTURE1D, gl.GL_TEXTURE2D
data : np.ndarray
Texture data (optional)
dtype : np.dtype
Texture data type (optional)
shape : tuple of integers
Texture shape
base : Texture
Base texture of this texture
offset : tuple of integers
Offset of this texture relative to base texture
store : boolean
Indicate whether to use an intermediate CPU storage
copy : boolean
Indicate whether to use given data as CPU storage
resizeable : boolean
Indicates whether texture can be resized
"""
GLObject.__init__(self)
self._data = None
self._base = base
self._store = store
self._copy = copy
self._target = target
self._offset = offset
self._pending_data = []
self._resizeable = resizeable
self._need_resize = False
self._need_update = False
self._valid = True
self._views = []
self._interpolation = gl.GL_NEAREST, gl.GL_NEAREST
self._wrapping = gl.GL_CLAMP_TO_EDGE
self._need_parameterization = True
# Do we have data to build texture upon ?
if data is not None:
self._need_resize = True
if dtype is not None:
data = np.array(data,dtype=dtype,copy=False)
else:
data = np.array(data,copy=False)
self._dtype = data.dtype
self._shape = data.shape
if self._store:
if base is None and not data.flags["C_CONTIGUOUS"]:
self._copy = True
self._data = np.array(data,copy=self._copy)
self.set_data(self.data,copy=False)
else:
self.set_data(data,copy=True)
elif dtype is not None:
if shape:
self._need_resize = True
self._shape = shape
self._dtype = dtype
if self._store:
self._data = np.empty(self._shape, dtype=self._dtype)
else:
raise ValueError("Either data or dtype must be given")
if offset is None:
self._offset = (0,) * len(self._shape)
else:
self._offset = offset
self._gtype = Texture._types.get(self.dtype, None)
if self._gtype is None:
raise ValueError("Type not allowed for texture")
def test_init(self):
obj = GLObject()
assert obj._handle == 0
assert obj.dirty == True
assert obj.status == False
assert obj.id == 1
def __init__(self, verts=[], frags=[], count=0):
"""Initialize the program and register shaders to be linked.
Parameters
----------
verts : list of vertex shaders
Vertex shaders to be used by this program
frags : list of fragment shaders
Fragment shaders to be used by this program
count : int
Number of vertices this program will use
Note
----
If several vertex shaders are specified, only one can contain the main
function.
If several fragment shaders are specified, only one can contain the main
function.
"""
GLObject.__init__(self)
self._count = count
self._buffer = None
# Get all vertex shaders
self._verts = []
if type(verts) in [str, VertexShader]:
verts = [verts]
for shader in verts:
if type(shader) is str:
self._verts.append(VertexShader(shader))
elif shader not in self._verts:
self._verts.append(shader)
# Get all fragment shaders
self._frags = []
if type(frags) in [str, FragmentShader]:
frags = [frags]
for shader in frags:
if type(shader) is str:
self._frags.append(FragmentShader(shader))
elif shader not in self._frags:
self._frags.append(shader)
# Build uniforms and attributes
self._build_uniforms()
self._build_attributes()
# Build associated structured vertex buffer if count is given
if self._count > 0:
dtype = []
for attribute in self._attributes.values():
dtype.append(attribute.dtype)
self._buffer = VertexBuffer(np.zeros(self._count, dtype=dtype))
self.bind(self._buffer)
def __init__(self,
data=None,
shape=(),
dtype=None,
base=None,
target=None,
offset=None,
store=True,
copy=False,
resizeable=True):
"""
Initialize the texture
Parameters
----------
target : GLEnum
gl.GL_TEXTURE1D, gl.GL_TEXTURE2D
data : np.ndarray
Texture data (optional)
dtype : np.dtype
Texture data type (optional)
shape : tuple of integers
Texture shape
base : Texture
Base texture of this texture
offset : tuple of integers
Offset of this texture relative to base texture
store : boolean
Indicate whether to use an intermediate CPU storage
copy : boolean
Indicate whether to use given data as CPU storage
resizeable : boolean
Indicates whether texture can be resized
"""
GLObject.__init__(self)
self._data = None
self._base = base
self._store = store
self._copy = copy
self._target = target
self._offset = offset
self._pending_data = []
self._resizeable = resizeable
self._need_resize = False
self._need_update = False
self._valid = True
self._views = []
self._interpolation = gl.GL_NEAREST, gl.GL_NEAREST
self._wrapping = gl.GL_CLAMP_TO_EDGE
self._need_parameterization = True
# Do we have data to build texture upon ?
if data is not None:
self._need_resize = True
if dtype is not None:
data = np.array(data, dtype=dtype, copy=False)
else:
data = np.array(data, copy=False)
self._dtype = data.dtype
self._shape = data.shape
if self._store:
if base is None and not data.flags["C_CONTIGUOUS"]:
self._copy = True
self._data = np.array(data, copy=self._copy)
self.set_data(self.data, copy=False)
else:
self.set_data(data, copy=True)
elif dtype is not None:
if shape:
self._need_resize = True
self._shape = shape
self._dtype = dtype
if self._store:
self._data = np.empty(self._shape, dtype=self._dtype)
else:
raise ValueError("Either data or dtype must be given")
if offset is None:
self._offset = (0, ) * len(self._shape)
else:
self._offset = offset
self._gtype = Texture._types.get(np.dtype(self.dtype), None)
if self._gtype is None:
raise ValueError("Type not allowed for texture")
