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'''OpenGL extension ARB.imaging
This module customises the behaviour of the
OpenGL.raw.GL.ARB.imaging to provide a more
Python-friendly API
The official definition of this extension is available here:
http://www.opengl.org/registry/specs/ARB/imaging.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.imaging import *
from OpenGL.raw.GL.ARB.imaging import _EXTENSION_NAME
def glInitImagingARB():
'''Return boolean indicating whether this extension is available'''
from OpenGL import extensions
return extensions.hasGLExtension( _EXTENSION_NAME )
# INPUT glColorTable.table size not checked against 'format,type,width'
glColorTable=wrapper.wrapper(glColorTable).setInputArraySize(
'table', None
)
# INPUT glColorTableParameterfv.params size not checked against 'pname'
glColorTableParameterfv=wrapper.wrapper(glColorTableParameterfv).setInputArraySize(
'params', None
)
# INPUT glColorTableParameteriv.params size not checked against 'pname'
glColorTableParameteriv=wrapper.wrapper(glColorTableParameteriv).setInputArraySize(
'params', None
)
# OUTPUT glGetColorTable.table COMPSIZE(target, format, type)
glGetColorTableParameterfv=wrapper.wrapper(glGetColorTableParameterfv).setOutput(
'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True
)
glGetColorTableParameteriv=wrapper.wrapper(glGetColorTableParameteriv).setOutput(
'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True
)
# INPUT glColorSubTable.data size not checked against 'format,type,count'
glColorSubTable=wrapper.wrapper(glColorSubTable).setInputArraySize(
'data', None
)
# INPUT glConvolutionFilter1D.image size not checked against 'format,type,width'
glConvolutionFilter1D=wrapper.wrapper(glConvolutionFilter1D).setInputArraySize(
'image', None
)
# INPUT glConvolutionFilter2D.image size not checked against 'format,type,width,height'
glConvolutionFilter2D=wrapper.wrapper(glConvolutionFilter2D).setInputArraySize(
'image', None
)
# INPUT glConvolutionParameterfv.params size not checked against 'pname'
glConvolutionParameterfv=wrapper.wrapper(glConvolutionParameterfv).setInputArraySize(
'params', None
)
# INPUT glConvolutionParameteriv.params size not checked against 'pname'
glConvolutionParameteriv=wrapper.wrapper(glConvolutionParameteriv).setInputArraySize(
'params', None
)
# OUTPUT glGetConvolutionFilter.image COMPSIZE(target, format, type)
glGetConvolutionParameterfv=wrapper.wrapper(glGetConvolutionParameterfv).setOutput(
'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True
)
glGetConvolutionParameteriv=wrapper.wrapper(glGetConvolutionParameteriv).setOutput(
'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True
)
# OUTPUT glGetSeparableFilter.column COMPSIZE(target, format, type)
# OUTPUT glGetSeparableFilter.row COMPSIZE(target, format, type)
# OUTPUT glGetSeparableFilter.span COMPSIZE(target, format, type)
# INPUT glSeparableFilter2D.column size not checked against 'target,format,type,height'
# INPUT glSeparableFilter2D.row size not checked against 'target,format,type,width'
glSeparableFilter2D=wrapper.wrapper(glSeparableFilter2D).setInputArraySize(
'column', None
).setInputArraySize(
'row', None
)
# OUTPUT glGetHistogram.values COMPSIZE(target, format, type)
glGetHistogramParameterfv=wrapper.wrapper(glGetHistogramParameterfv).setOutput(
'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True
)
glGetHistogramParameteriv=wrapper.wrapper(glGetHistogramParameteriv).setOutput(
'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True
)
# OUTPUT glGetMinmax.values COMPSIZE(target, format, type)
glGetMinmaxParameterfv=wrapper.wrapper(glGetMinmaxParameterfv).setOutput(
'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True
)
glGetMinmaxParameteriv=wrapper.wrapper(glGetMinmaxParameteriv).setOutput(
'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True
)
### END AUTOGENERATED SECTION
from OpenGL.GL import images
from OpenGL.lazywrapper import lazy as _lazy
glColorTable = images.setDimensionsAsInts(
images.setImageInput(
glColorTable,
pixelName = 'table',
typeName = 'type',
)
)
glColorSubTable = images.setDimensionsAsInts(
images.setImageInput(
glColorSubTable,
pixelName = 'data',
)
)
glSeparableFilter2D = images.setDimensionsAsInts(
images.setImageInput(
images.setImageInput(
glSeparableFilter2D,
pixelName = 'row',
typeName = 'type',
),
pixelName = 'column',
typeName = 'type',
)
)
glConvolutionFilter1D = images.setDimensionsAsInts(
images.setImageInput(
glConvolutionFilter1D,
pixelName = 'image',
typeName = 'type',
)
)
glConvolutionFilter2D = images.setDimensionsAsInts(
images.setImageInput(
glConvolutionFilter2D,
pixelName = 'image',
typeName = 'type',
)
)
@_lazy( glGetConvolutionFilter )
def glGetConvolutionFilter( baseFunction, target, format, type ):
"""Retrieve 1 or 2D convolution parameter "kernels" as pixel data"""
dims = (
glGetConvolutionParameteriv( target, GL_CONVOLUTION_WIDTH )[0],
)
if target != GL_CONVOLUTION_1D:
dims += (
glGetConvolutionParameteriv( target, GL_CONVOLUTION_HEIGHT )[0],
)
# is it always 4? Seems to be, but the spec/man-page isn't really clear about it...
dims += (4,)
array = images.images.SetupPixelRead( format, dims, type )
arrayType = arrays.GL_CONSTANT_TO_ARRAY_TYPE[
images.images.TYPE_TO_ARRAYTYPE.get(type,type)
]
baseFunction(
target, format, type,
ctypes.c_void_p( arrayType.dataPointer(array))
)
return array
@_lazy( glGetSeparableFilter )
def glGetSeparableFilter( baseFunction, target, format, type ):
"""Retrieve 2 1D convolution parameter "kernels" as pixel data"""
rowDims = (
glGetConvolutionParameteriv( GL_CONVOLUTION_WIDTH )[0],
4,
)
columnDims = (
glGetConvolutionParameteriv( GL_CONVOLUTION_HEIGHT )[0],
4,
)
arrayType = arrays.GL_CONSTANT_TO_ARRAY_TYPE[
images.images.TYPE_TO_ARRAYTYPE.get(type,type)
]
row = images.images.SetupPixelRead( format, rowDims, type )
column = images.images.SetupPixelRead( format, columnDims, type )
baseFunction(
target, format, type,
ctypes.c_void_p( arrayType.dataPointer(row)),
ctypes.c_void_p( arrayType.dataPointer(column)),
None # span
)
return row, column
@_lazy( glGetColorTable )
def glGetColorTable( baseFunction, target, format, type ):
"""Retrieve the current 1D color table as a bitmap"""
dims = (
glGetColorTableParameteriv(target, GL_COLOR_TABLE_WIDTH),
4, # Grr, spec *seems* to say that it's different sizes, but it doesn't really say...
)
array = images.images.SetupPixelRead( format, dims, type )
arrayType = arrays.GL_CONSTANT_TO_ARRAY_TYPE[
images.images.TYPE_TO_ARRAYTYPE.get(type,type)
]
baseFunction(
target, format, type,
ctypes.c_void_p( arrayType.dataPointer(array))
)
return array
@_lazy( glGetHistogram )
def glGetHistogram( baseFunction, target, reset, format, type, values=None):
"""Retrieve current 1D histogram as a 1D bitmap"""
if values is None:
width = glGetHistogramParameteriv(
target,
GL_HISTOGRAM_WIDTH,
)
values = images.images.SetupPixelRead( format, (width,4), type )
arrayType = arrays.GL_CONSTANT_TO_ARRAY_TYPE[
images.images.TYPE_TO_ARRAYTYPE.get(type,type)
]
baseFunction(
target, reset, format, type,
ctypes.c_void_p( arrayType.dataPointer(values))
)
return values
@_lazy( glGetMinmax )
def glGetMinmax( baseFunction, target, reset, format, type, values=None):
"""Retrieve minimum and maximum values as a 2-element image"""
if values is None:
width = 2
values = images.images.SetupPixelRead( format, (width,4), type )
arrayType = arrays.GL_CONSTANT_TO_ARRAY_TYPE[
images.images.TYPE_TO_ARRAYTYPE.get(type,type)
]
baseFunction(
target, reset, format, type,
ctypes.c_void_p( arrayType.dataPointer(values))
)
return values
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