def glGetConvolutionFilter(baseFunction, target, format, type):
"""Retrieve 1 or 2D convolution parameter "kernels" as pixel data"""
from OpenGL.error import glCheckError
glCheckError(None)
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
def GLSLCheckError(result, baseOperation=None, cArguments=None, *args):
result = error.glCheckError(result, baseOperation, cArguments, *args)
status = glGetObjectParameterivARB(cArguments[0], key)
if not status:
raise error.GLError(result=result,
baseOperation=baseOperation,
cArguments=cArguments,
description=glGetInfoLogARB(cArguments[0]))
return result
def test_glAreTexturesResident( self ): """Test that PyOpenGL api for glAreTexturesResident is working Note: not currently working on AMD64 Linux for some reason """ import numpy textures = glGenTextures(2) residents = [] for texture in textures: glBindTexture( GL_TEXTURE_2D,int(texture) ) glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, 1, 1, 0, GL_RGB, GL_INT, self.someData) residents.append( glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_RESIDENT ) ) error.glCheckError(None) result = glAreTexturesResident( textures) assert len(result) == 2 for (tex,expected,found) in zip( textures, residents, result ): if expected != found: print 'Warning: texture %s residence expected %s got %s'%( tex, expected, found )
def GLSLCheckError(result, baseOperation=None, cArguments=None, *args):
result = error.glCheckError(result, baseOperation, cArguments, *args)
status = ctypes.c_int()
getter(cArguments[0], key, ctypes.byref(status))
status = status.value
if not status:
raise error.GLError(result=result,
baseOperation=baseOperation,
cArguments=cArguments,
description=glGetInfoLog(cArguments[0]))
return result
def GLSLCheckError(result, baseOperation=None, cArguments=None, *args):
result = error.glCheckError(result, baseOperation, cArguments, *args)
status = glGetObjectParameterivARB(cArguments[0], key)
if not status:
raise error.GLError(
result=result,
baseOperation=baseOperation,
cArguments=cArguments,
description=glGetInfoLogARB(cArguments[0]),
)
return result
def test_glAreTexturesResident( self ):
"""Test that PyOpenGL api for glAreTexturesResident is working
Note: not currently working on AMD64 Linux for some reason
"""
import numpy
textures = glGenTextures(2)
residents = []
data = numpy.array( self.someData,'i' )
for texture in textures:
glBindTexture( GL_TEXTURE_2D,int(texture) )
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, 1, 1, 0, GL_RGB, GL_INT, data)
residents.append(
glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_RESIDENT )
)
error.glCheckError(None)
result = glAreTexturesResident( textures)
assert len(result) == 2
for (tex,expected,found) in zip( textures, residents, result ):
if expected != found:
print('Warning: texture %s residence expected %s got %s'%( tex, expected, found ))
def glGetConvolutionFilter( baseFunction, target, format, type ):
"""Retrieve 1 or 2D convolution parameter "kernels" as pixel data"""
from OpenGL.error import glCheckError
glCheckError(None)
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
def GLSLCheckError(
result,
baseOperation=None,
cArguments=None,
*args
):
result = error.glCheckError( result, baseOperation, cArguments, *args )
status = ctypes.c_int()
getter( cArguments[0], key, ctypes.byref(status))
status = status.value
if not status:
raise error.GLError(
result = result,
baseOperation = baseOperation,
cArguments = cArguments,
description= glGetInfoLog( cArguments[0] )
)
return result
