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"""OpenGL-wide constant types (not OpenGL.GL-specific"""
import ctypes
from OpenGL.constant import Constant
GL_FALSE = Constant( 'GL_FALSE', 0x0 )
GL_TRUE = Constant( 'GL_TRUE', 0x1 )
GL_BYTE = Constant( 'GL_BYTE', 0x1400 )
GL_UNSIGNED_BYTE = Constant( 'GL_UNSIGNED_BYTE', 0x1401 )
GL_SHORT = Constant( 'GL_SHORT', 0x1402 )
GL_UNSIGNED_SHORT = Constant( 'GL_UNSIGNED_SHORT', 0x1403 )
GL_INT = Constant( 'GL_INT', 0x1404 )
GL_UNSIGNED_INT = Constant( 'GL_UNSIGNED_INT', 0x1405 )
GL_FLOAT = Constant( 'GL_FLOAT', 0x1406 )
GL_DOUBLE = Constant( 'GL_DOUBLE', 0x140a )
GL_CHAR = str
GL_HALF_NV = Constant( 'GL_HALF_NV', 0x1401 )
# Basic OpenGL data-types as ctypes declarations...
def _defineType( name, baseType, convertFunc = long ):
import OpenGL
if OpenGL.ALLOW_NUMPY_SCALARS:
original = baseType.from_param
def from_param( x ):
try:
return original( x )
except TypeError, err:
try:
return original( convertFunc(x) )
except TypeError, err2:
raise err
setattr( baseType, 'from_param', staticmethod( from_param ) )
return baseType
else:
return baseType
GLvoid = None
GLboolean = _defineType( 'GLboolean', ctypes.c_ubyte, bool )
GLenum = _defineType( 'GLenum', ctypes.c_uint )
GLfloat = _defineType( 'GLfloat', ctypes.c_float, float )
GLdouble = _defineType( 'GLdouble', ctypes.c_double, float )
GLbyte = ctypes.c_byte
GLshort = _defineType( 'GLshort', ctypes.c_short, int )
GLint = _defineType( 'GLint', ctypes.c_int, int )
GLuint = _defineType( 'GLuint', ctypes.c_uint )
GLsizei = _defineType( 'GLsizei', ctypes.c_int, int )
GLubyte = ctypes.c_ubyte
GLushort = _defineType( 'GLushort', ctypes.c_ushort, int )
GLhandleARB = _defineType( 'GLhandleARB', ctypes.c_uint )
GLhandle = _defineType( 'GLhandle', ctypes.c_uint )
GLchar = GLcharARB = ctypes.c_char
GLbitfield = _defineType( 'GLbitfield', ctypes.c_uint )
GLclampd = _defineType( 'GLclampd', ctypes.c_double, float )
GLclampf = _defineType( 'GLclampf', ctypes.c_float, float )
# ptrdiff_t, actually...
GLsizeiptrARB = GLsizeiptr = GLsizei
GLintptrARB = GLintptr = GLint
size_t = ctypes.c_ulong
GLhalfNV = GLhalfARB = ctypes.c_ushort
ARRAY_TYPE_TO_CONSTANT = [
('GLclampd', GL_DOUBLE),
('GLclampf', GL_FLOAT),
('GLfloat', GL_FLOAT),
('GLdouble', GL_DOUBLE),
('GLbyte', GL_BYTE),
('GLshort', GL_SHORT),
('GLint', GL_INT),
('GLubyte', GL_UNSIGNED_BYTE),
('GLushort', GL_UNSIGNED_SHORT),
('GLuint', GL_UNSIGNED_INT),
('GLenum', GL_UNSIGNED_INT),
]
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