def errcheck(result, func, arguments):
if _debug_gl_trace:
try:
name = func.__name__
except AttributeError:
name = repr(func)
if _debug_gl_trace_args:
trace_args = ', '.join([repr(arg)[:20] for arg in arguments])
print('%s(%s)' % (name, trace_args))
else:
print(name)
from pyglet import gl
context = gl.current_context
if not context:
raise GLException('No GL context; create a Window first')
error = gl.glGetError()
if error:
# These are the 6 possible error codes we can get in opengl core 3.3+
error_types = {
gl.GL_INVALID_ENUM:
"Invalid enum. An unacceptable value is specified for an enumerated argument.",
gl.GL_INVALID_VALUE:
"Invalid value. A numeric argument is out of range.",
gl.GL_INVALID_OPERATION:
"Invalid operation. The specified operation is not allowed in the current state.",
gl.GL_INVALID_FRAMEBUFFER_OPERATION:
"Invalid framebuffer operation. The framebuffer object is not complete.",
gl.GL_OUT_OF_MEMORY:
"Out of memory. There is not enough memory left to execute the command.",
}
msg = error_types.get(error, "Unknown error")
raise GLException('(0x%x): %s' % (error, msg))
return result
def errcheck(result=None, func=None, arguments=None):
if _debug_gl_trace:
try:
name = func.__name__
except AttributeError:
name = repr(func)
if _debug_gl_trace_args:
trace_args = ', '.join([repr(arg)[:20] for arg in arguments])
print '%s(%s)' % (name, trace_args)
else:
print name
from pyglet import gl
context = gl.current_context
if not context:
raise GLException('No GL context; create a Window first')
if not context._gl_begin:
error = gl.glGetError()
# special cases
if error:
msg = (ctypes.cast(gl.gluErrorString(error), ctypes.c_char_p).value
or ('Error %s' % error))
try:
msg += ' (%s %s)' % (func.name, arguments)
except AttributeError:
msg += ' (%s)' % (func)
raise GLException(msg)
return result
def errcheck(result = None, func = None, arguments = None):
if _debug_gl_trace:
try:
name = func.__name__
except AttributeError:
name = repr(func)
if _debug_gl_trace_args:
trace_args = ', '.join([repr(arg)[:20] for arg in arguments])
print '%s(%s)' % (name, trace_args)
else:
print name
from pyglet import gl
context = gl.current_context
if not context:
raise GLException('No GL context; create a Window first')
if not context._gl_begin:
error = gl.glGetError()
# special cases
if error:
msg = (ctypes.cast(gl.gluErrorString(error), ctypes.c_char_p).value
or ('Error %s' % error))
try:
msg += ' (%s %s)' % (func.name, arguments)
except AttributeError:
msg += ' (%s)' % (func)
raise GLException(msg)
return result
def my_errcheck(result, func, arguments):
from pyglet import gl
error = gl.glGetError()
if error and error != 1286:
# HACK: The 1286(INVALID_FRAMEBUFFER_OPERATION) error again!
# This time I DIDN'T EVEN USE FBO! ATI!!
msg = ctypes.cast(gl.gluErrorString(error), ctypes.c_char_p).value
raise gl.GLException((error, msg))
return result
def my_errcheck(result, func, arguments):
from pyglet import gl
error = gl.glGetError()
if error and error != 1286:
# HACK: The 1286(INVALID_FRAMEBUFFER_OPERATION) error again!
# This time I DIDN'T EVEN USE FBO! ATI!!
msg = ctypes.cast(gl.gluErrorString(error), ctypes.c_char_p).value
raise gl.GLException((error, msg))
return result
def errcheck(result, func, arguments):
from pyglet.gl import get_current_context
context = get_current_context()
if not context:
raise GLException('No GL context; create a Window first')
if not context._gl_begin:
from pyglet.gl import glGetError, gluErrorString
error = glGetError()
if error:
message = ctypes.cast(gluErrorString(error), ctypes.c_char_p).value
raise GLException(message)
return result
def errcheck(result, func, arguments):
from pyglet.gl import get_current_context
context = get_current_context()
if not context:
raise GLException('No GL context; create a Window first')
if not context._gl_begin:
from pyglet.gl import glGetError, gluErrorString
error = glGetError()
if error:
message = ctypes.cast(gluErrorString(error), ctypes.c_char_p).value
raise GLException(message)
return result
def error(self) -> Union[str, None]:
"""Check OpenGL error
Returns a string representation of the occurring error
or ``None`` of no errors has occurred.
Example::
err = ctx.error
if err:
raise RuntimeError("OpenGL error: {err}")
:type: str
"""
err = gl.glGetError()
if err == gl.GL_NO_ERROR:
return None
return self._errors.get(err, "GL_UNKNOWN_ERROR")
def errcheck(result, func, arguments):
if _debug_gl_trace:
try:
name = func.__name__
except AttributeError:
name = repr(func)
if _debug_gl_trace_args:
trace_args = ', '.join([repr(arg)[:20] for arg in arguments])
print('%s(%s)' % (name, trace_args))
else:
print(name)
from pyglet import gl
context = gl.current_context
if not context:
raise GLException('No GL context; create a Window first')
error = gl.glGetError()
if error:
msg = ctypes.cast(gl.gluErrorString(error), ctypes.c_char_p).value
raise GLException(msg)
return result
def errcheck(result, func, arguments):
if _debug_gl_trace:
try:
name = func.__name__
except AttributeError:
name = repr(func)
if _debug_gl_trace_args:
trace_args = ', '.join([repr(arg)[:20] for arg in arguments])
print('%s(%s)' % (name, trace_args))
else:
print(name)
from pyglet import gl
context = gl.current_context
if not context:
raise GLException('No GL context; create a Window first')
if not context._gl_begin:
error = gl.glGetError()
if error:
msg = ctypes.cast(gl.gluErrorString(error), ctypes.c_char_p).value
raise GLException(msg)
return result
def add_texture(self, shape, dtype=gl.GL_FLOAT):
"""Add texture image to the framebuffer object.
Parameters
----------
shape : tuple of ints
Dimension of framebuffer. Note that for earlier versions
of OpenGL, height and width dimensions must be a power of
two. Valid shapes include (16,), (16, 17), (16, 16, 3).
dtype : opengl data-type, e.g. GL_FLOAT, GL_UNSIGNED_BYTE
Returns
-------
slot : int
The slot number to which the texture was bound. E.g., in the
case of GL_COLOR_ATTACHMENT3_EXT, returns 3.
"""
if dtype != gl.GL_FLOAT:
warnings.warn("While OpenGL < 3.0 implementations allow the "
"storage of textures with data-types other "
"than FLOAT, gl_FragColor only accepts "
"assigned a floating point value. In OpenGL 3.0 "
"this can be changed (see READING.txt).",
RuntimeWarning)
if len(self._textures) >= MAX_COLOR_ATTACHMENTS:
raise RuntimeError("Maximum number of textures reached. This "
"platform supports %d attachments." % \
MAX_COLOR_ATTACHMENTS)
slot = getattr(gl, "GL_COLOR_ATTACHMENT%d_EXT" % len(self._textures))
width, height, bands = _shape_to_3d(shape)
if bands > 4:
raise ValueError("Texture cannot have more than 4 colour layers.")
colour_bands = {1: gl.GL_LUMINANCE,
2: gl.GL_LUMINANCE_ALPHA,
3: gl.GL_RGB,
4: gl.GL_RGBA}
# allocate a texture and add to the frame buffer
tex = Texture(width, height,
format=colour_bands[bands],
dtype=dtype,
internalformat=gl.GL_RGB32F_ARB,
)
gl.glBindTexture(tex.target, tex.id)
gl.glFramebufferTexture2DEXT(gl.GL_FRAMEBUFFER_EXT,
gl.GL_COLOR_ATTACHMENT0_EXT,
tex.target, tex.id, 0)
if (gl.glGetError() != gl.GL_NO_ERROR):
raise RuntimeError("Could not create framebuffer texture.")
status = gl.glCheckFramebufferStatusEXT(gl.GL_FRAMEBUFFER_EXT)
if not (status == gl.GL_FRAMEBUFFER_COMPLETE_EXT):
raise RuntimeError("Could not set up framebuffer.")
self._textures.append(tex)
return len(self._textures) - 1
