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'''OpenGL extension APPLE.texture_packed_float
This module customises the behaviour of the
OpenGL.raw.GLES2.APPLE.texture_packed_float to provide a more
Python-friendly API
Overview (from the spec)
This extension adds two new 3-component floating-point texture formats
that fit within a single 32-bit word called R11F_G11F_B10F and RGB9_E5
The first RGB format, R11F_G11F_B10F, stores 5 bits of biased exponent
per component in the same manner as 16-bit floating-point formats, but
rather than 10 mantissa bits, the red, green, and blue components have
6, 6, and 5 bits respectively. Each mantissa is assumed to have an
implied leading one except in the denorm exponent case. There is no
sign bit so only non-negative values can be represented. Positive
infinity, positivedenorms, and positive NaN values are representable.
The value of the fourth component returned by a texture fetch is always
1.0.
The second RGB format, RGB9_E5, stores a single 5-bit exponent (biased
up by 15) and three 9-bit mantissas for each respective component.
There is no sign bit so all three components must be non-negative.
The fractional mantissas are stored without an implied 1 to the left
of the decimal point. Neither infinity nor not-a-number (NaN) are
representable in this shared exponent format.
The official definition of this extension is available here:
http://www.opengl.org/registry/specs/APPLE/texture_packed_float.txt
'''
from OpenGL import platform, constant, arrays
from OpenGL import extensions, wrapper
import ctypes
from OpenGL.raw.GLES2 import _types, _glgets
from OpenGL.raw.GLES2.APPLE.texture_packed_float import *
from OpenGL.raw.GLES2.APPLE.texture_packed_float import _EXTENSION_NAME
def glInitTexturePackedFloatAPPLE():
'''Return boolean indicating whether this extension is available'''
from OpenGL import extensions
return extensions.hasGLExtension( _EXTENSION_NAME )
### END AUTOGENERATED SECTION
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