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'''OpenGL extension ARB.multi_bind
This module customises the behaviour of the
OpenGL.raw.GL.ARB.multi_bind to provide a more
Python-friendly API
Overview (from the spec)
This extension provides a new set of commands allowing applications to
bind or unbind a set of objects in a single call, instead of requiring a
separate call for each bind or unbind operation. Using a single command
allows OpenGL implementations to amortize function call, name space
lookup, and potential locking overhead over multiple bind or unbind
operations. The rendering loops of graphics applications frequently
switch between different states, binding different sets of resources,
including texture objects, sampler objects, textures for image loads and
stores, uniform buffers, and vertex buffers; this extension provides
"multi-bind" entry points for all of these object types.
Each command in this extension includes a <first> and <count> parameter,
specifying a continguous range of binding points to update, as well as an
array of <count> object names specifying the objects to bind. Unlike
single bind commands, multi-bind commands can be used only to bind or
unbind existing objects. Passing a previously unused object name
(generated or not) results in an error and does not create a new object.
For binding points with associated data (e.g., ranges of a buffer),
separate arrays are used to pass the associated data for each binding
point. Passing zero values in the array of object names removes the
object bound to the current bounding point. Additionally, if NULL is
passed as the array of objects, objects bound to the entire range of
binding points are unbound, as though the caller passed an array of
zeroes.
The official definition of this extension is available here:
http://www.opengl.org/registry/specs/ARB/multi_bind.txt
'''
from OpenGL import platform, constant, arrays
from OpenGL import extensions, wrapper
import ctypes
from OpenGL.raw.GL import _types, _glgets
from OpenGL.raw.GL.ARB.multi_bind import *
from OpenGL.raw.GL.ARB.multi_bind import _EXTENSION_NAME
def glInitMultiBindARB():
'''Return boolean indicating whether this extension is available'''
from OpenGL import extensions
return extensions.hasGLExtension( _EXTENSION_NAME )
# INPUT glBindBuffersBase.buffers size not checked against count
glBindBuffersBase=wrapper.wrapper(glBindBuffersBase).setInputArraySize(
'buffers', None
)
# INPUT glBindBuffersRange.sizes size not checked against count
# INPUT glBindBuffersRange.buffers size not checked against count
# INPUT glBindBuffersRange.offsets size not checked against count
glBindBuffersRange=wrapper.wrapper(glBindBuffersRange).setInputArraySize(
'sizes', None
).setInputArraySize(
'buffers', None
).setInputArraySize(
'offsets', None
)
# INPUT glBindTextures.textures size not checked against count
glBindTextures=wrapper.wrapper(glBindTextures).setInputArraySize(
'textures', None
)
# INPUT glBindSamplers.samplers size not checked against count
glBindSamplers=wrapper.wrapper(glBindSamplers).setInputArraySize(
'samplers', None
)
# INPUT glBindImageTextures.textures size not checked against count
glBindImageTextures=wrapper.wrapper(glBindImageTextures).setInputArraySize(
'textures', None
)
# INPUT glBindVertexBuffers.strides size not checked against count
# INPUT glBindVertexBuffers.buffers size not checked against count
# INPUT glBindVertexBuffers.offsets size not checked against count
glBindVertexBuffers=wrapper.wrapper(glBindVertexBuffers).setInputArraySize(
'strides', None
).setInputArraySize(
'buffers', None
).setInputArraySize(
'offsets', None
)
### END AUTOGENERATED SECTION
|
