def do_check_GL_support(force_enable):
props = {}
try:
#log redirection:
def redirect_log(logger_name):
logger = logging.getLogger(logger_name)
assert logger is not None
logger.saved_handlers = logger.handlers
logger.saved_propagate = logger.propagate
logger.handlers = [CaptureHandler()]
logger.propagate = 0
return logger
fhlogger = redirect_log('OpenGL.formathandler')
elogger = redirect_log('OpenGL.extensions')
alogger = redirect_log('OpenGL.acceleratesupport')
arlogger = redirect_log('OpenGL.arrays')
clogger = redirect_log('OpenGL.converters')
import OpenGL
props["pyopengl"] = OpenGL.__version__
from OpenGL.GL import GL_VERSION, GL_EXTENSIONS
from OpenGL.GL import glGetString, glGetInteger, glGetIntegerv
gl_version_str = glGetString(GL_VERSION)
if gl_version_str is None:
gl_check_error("OpenGL version is missing - cannot continue")
return {}
gl_major = int(gl_version_str[0])
gl_minor = int(gl_version_str[2])
props["opengl"] = gl_major, gl_minor
MIN_VERSION = (1,1)
if (gl_major, gl_minor) < MIN_VERSION:
gl_check_error("OpenGL output requires version %s or greater, not %s.%s" %
(".".join([str(x) for x in MIN_VERSION]), gl_major, gl_minor))
else:
log("found valid OpenGL version: %s.%s", gl_major, gl_minor)
from OpenGL import version as OpenGL_version
pyopengl_version = OpenGL_version.__version__
try:
import OpenGL_accelerate
accel_version = OpenGL_accelerate.__version__
props["accelerate"] = accel_version
log("OpenGL_accelerate version %s", accel_version)
except:
log("OpenGL_accelerate not found")
OpenGL_accelerate = None
accel_version = None
if accel_version is not None and pyopengl_version!=accel_version:
global _version_warning_shown
if not _version_warning_shown:
log.warn("Warning: version mismatch between PyOpenGL and PyOpenGL-accelerate")
log.warn(" this may cause crashes")
_version_warning_shown = True
vsplit = pyopengl_version.split('.')
#we now require PyOpenGL 3.1 or later
if vsplit[:2]<['3','1'] and not force_enable:
gl_check_error("PyOpenGL version 3.1 or later is required (found version %s)" % pyopengl_version)
return {}
props["zerocopy"] = bool(OpenGL_accelerate) and is_pyopengl_memoryview_safe(pyopengl_version, accel_version)
try:
extensions = glGetString(GL_EXTENSIONS).decode().split(" ")
except:
log("error querying extensions", exc_info=True)
extensions = []
gl_check_error("OpenGL could not find the list of GL extensions - does the graphics driver support OpenGL?")
log("OpenGL extensions found: %s", ", ".join(extensions))
props["extensions"] = extensions
from OpenGL.arrays.arraydatatype import ArrayDatatype
try:
log("found the following array handlers: %s", set(ArrayDatatype.getRegistry().values()))
except:
pass
from OpenGL.GL import GL_RENDERER, GL_VENDOR, GL_SHADING_LANGUAGE_VERSION
def fixstring(v):
try:
return str(v).strip()
except:
return str(v)
for d,s,fatal in (("vendor", GL_VENDOR, True),
("renderer", GL_RENDERER, True),
("shading language version", GL_SHADING_LANGUAGE_VERSION, False)):
try:
v = glGetString(s)
v = fixstring(v.decode())
log("%s: %s", d, v)
except:
if fatal:
gl_check_error("OpenGL property '%s' is missing" % d)
else:
log("OpenGL property '%s' is missing", d)
v = ""
props[d] = v
vendor = props["vendor"]
version_req = VERSION_REQ.get(vendor)
if version_req:
req_maj, req_min = version_req
if gl_major<req_maj or (gl_major==req_maj and gl_minor<req_min):
if force_enable:
log.warn("Warning: '%s' OpenGL driver requires version %i.%i", vendor, req_maj, req_min)
log.warn(" version %i.%i was found", gl_major, gl_minor)
else:
gl_check_error("OpenGL version %i.%i is too old, %i.%i is required for %s" % (gl_major, gl_minor, req_maj, req_min, vendor))
from OpenGL.GLU import gluGetString, GLU_VERSION, GLU_EXTENSIONS
for d,s in {"GLU version": GLU_VERSION, "GLU extensions":GLU_EXTENSIONS}.items():
v = gluGetString(s)
v = v.decode()
log("%s: %s", d, v)
props[d] = v
blacklisted = None
whitelisted = None
greylisted = None
for k,vlist in BLACKLIST.items():
v = props.get(k)
if v in vlist:
log("%s '%s' found in blacklist: %s", k, v, vlist)
blacklisted = k, v
for k,vlist in GREYLIST.items():
v = props.get(k)
if v in vlist:
log("%s '%s' found in greylist: %s", k, v, vlist)
greylisted = k, v
for k,vlist in WHITELIST.items():
v = props.get(k)
if v in vlist:
log("%s '%s' found in whitelist: %s", k, v, vlist)
whitelisted = k, v
if blacklisted:
if whitelisted:
log.info("%s '%s' enabled (found in both blacklist and whitelist)", *whitelisted)
elif force_enable:
log.warn("Warning: %s '%s' is blacklisted!", *blacklisted)
else:
gl_check_error("%s '%s' is blacklisted!" % (blacklisted))
safe = bool(whitelisted) or not (bool(greylisted) or bool(blacklisted))
if safe and sys.version_info[0]>2:
log.warn("Warning: OpenGL python3 support is not enabled by default")
safe = False
props["safe"] = safe
#check for specific functions we need:
from OpenGL.GL import glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, glTexEnvi, glHint, glBlendFunc, glLineStipple, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd
check_functions(glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, glTexEnvi, glHint, glBlendFunc, glLineStipple, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd)
glEnablei = None
try:
from OpenGL.GL import glEnablei
except:
pass
if not bool(glEnablei):
log.warn("OpenGL glEnablei is not available, disabling transparency")
global GL_ALPHA_SUPPORTED
GL_ALPHA_SUPPORTED = False
props["transparency"] = GL_ALPHA_SUPPORTED
#check for framebuffer functions we need:
from OpenGL.GL.ARB.framebuffer_object import GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D
check_functions(GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D)
for ext in required_extensions:
if ext not in extensions:
gl_check_error("OpenGL driver lacks support for extension: %s" % ext)
else:
log("Extension %s is present", ext)
#this allows us to do CSC via OpenGL:
#see http://www.opengl.org/registry/specs/ARB/fragment_program.txt
from OpenGL.GL.ARB.fragment_program import glInitFragmentProgramARB
if not glInitFragmentProgramARB():
gl_check_error("OpenGL output requires glInitFragmentProgramARB")
else:
log("glInitFragmentProgramARB works")
from OpenGL.GL.ARB.texture_rectangle import glInitTextureRectangleARB
if not glInitTextureRectangleARB():
gl_check_error("OpenGL output requires glInitTextureRectangleARB")
else:
log("glInitTextureRectangleARB works")
from OpenGL.GL.ARB.vertex_program import glGenProgramsARB, glDeleteProgramsARB, \
glBindProgramARB, glProgramStringARB
check_functions(glGenProgramsARB, glDeleteProgramsARB, glBindProgramARB, glProgramStringARB)
try:
from OpenGL.GL import GL_MAX_TEXTURE_SIZE
texture_size = glGetInteger(GL_MAX_TEXTURE_SIZE)
#this one may be missing?
rect_texture_size = texture_size
try:
from OpenGL.GL import GL_MAX_RECTANGLE_TEXTURE_SIZE
rect_texture_size = glGetInteger(GL_MAX_RECTANGLE_TEXTURE_SIZE)
except ImportError as e:
log("OpenGL: %s", e)
log("using GL_MAX_TEXTURE_SIZE=%s as default", texture_size)
except Exception as e:
emsg = str(e)
if hasattr(e, "description"):
emsg = e.description
gl_check_error("unable to query max texture size: %s" % emsg)
return props
log("Texture size GL_MAX_RECTANGLE_TEXTURE_SIZE=%s, GL_MAX_TEXTURE_SIZE=%s", rect_texture_size, texture_size)
texture_size_limit = min(rect_texture_size, texture_size)
props["texture-size-limit"] = texture_size_limit
try:
from OpenGL.GL import GL_MAX_VIEWPORT_DIMS
v = glGetIntegerv(GL_MAX_VIEWPORT_DIMS)
max_viewport_dims = v[0], v[1]
assert max_viewport_dims[0]>=texture_size_limit and max_viewport_dims[1]>=texture_size_limit
log("GL_MAX_VIEWPORT_DIMS=%s", max_viewport_dims)
except ImportError as e:
log.error("Error querying max viewport dims: %s", e)
max_viewport_dims = texture_size_limit, texture_size_limit
props["max-viewport-dims"] = max_viewport_dims
return props
finally:
for x in alogger.handlers[0].records:
#strip default message prefix:
msg = x.getMessage().replace("No OpenGL_accelerate module loaded: ", "")
if msg=="No module named OpenGL_accelerate":
msg = "missing accelerate module"
if msg!="OpenGL_accelerate module loaded":
msg = "PyOpenGL warning: %s" % msg
log.info(msg)
#format handler messages:
STRIP_LOG_MESSAGE = "Unable to load registered array format handler "
missing_handlers = []
for x in fhlogger.handlers[0].records:
msg = x.getMessage()
p = msg.find(STRIP_LOG_MESSAGE)
if p<0:
#unknown message, log it:
log.info(msg)
continue
format_handler = msg[p+len(STRIP_LOG_MESSAGE):]
p = format_handler.find(":")
if p>0:
format_handler = format_handler[:p]
missing_handlers.append(format_handler)
if len(missing_handlers)>0:
log.warn("PyOpenGL warning: missing array format handlers: %s", ", ".join(missing_handlers))
for x in elogger.handlers[0].records:
msg = x.getMessage()
#ignore extension messages:
p = msg.startswith("GL Extension ") and msg.endswith("available")
if not p:
log.info(msg)
missing_accelerators = []
STRIP_AR_HEAD = "Unable to load"
STRIP_AR_TAIL = "from OpenGL_accelerate"
for x in arlogger.handlers[0].records+clogger.handlers[0].records:
msg = x.getMessage()
if msg.startswith(STRIP_AR_HEAD) and msg.endswith(STRIP_AR_TAIL):
m = msg[len(STRIP_AR_HEAD):-len(STRIP_AR_TAIL)].strip()
m = m.replace("accelerators", "").replace("accelerator", "").strip()
missing_accelerators.append(m)
continue
elif msg.startswith("Using accelerated"):
log(msg)
else:
log.info(msg)
if missing_accelerators:
log.info("OpenGL accelerate missing: %s", ", ".join(missing_accelerators))
def restore_logger(logger):
logger.handlers = logger.saved_handlers
logger.propagate = logger.saved_propagate
restore_logger(fhlogger)
restore_logger(elogger)
restore_logger(alogger)
restore_logger(arlogger)
restore_logger(clogger)
def create(width, height, format=GL_RGBA, rectangle=False, mipmap=False):
'''Create a texture based on size.'''
target = GL_TEXTURE_2D
if rectangle:
if _is_pow2(width) and _is_pow2(height):
rectangle = False
else:
rectangle = False
try:
if Texture._has_texture_nv is None:
Texture._has_texture_nv = glInitTextureRectangleNV()
if Texture._has_texture_nv:
target = GL_TEXTURE_RECTANGLE_NV
rectangle = True
except Exception:
pass
try:
if Texture._has_texture_arb is None:
Texture._has_texture_arb = glInitTextureRectangleARB()
if not rectangle and Texture._has_texture_arb:
target = GL_TEXTURE_RECTANGLE_ARB
rectangle = True
except Exception:
pass
if not rectangle:
pymt_logger.debug(
'Texture: Missing support for rectangular texture')
else:
# Can't do mipmap with rectangle texture
mipmap = False
if rectangle:
texture_width = width
texture_height = height
else:
texture_width = _nearest_pow2(width)
texture_height = _nearest_pow2(height)
texid = glGenTextures(1)
texture = Texture(texture_width,
texture_height,
target,
texid,
mipmap=mipmap)
texture.bind()
texture.wrap = GL_CLAMP_TO_EDGE
if mipmap:
texture.min_filter = GL_LINEAR_MIPMAP_LINEAR
#texture.mag_filter = GL_LINEAR_MIPMAP_LINEAR
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE)
else:
texture.min_filter = GL_LINEAR
texture.mag_filter = GL_LINEAR
if not Texture.is_gl_format_supported(format):
format = Texture.convert_gl_format(format)
data = (GLubyte * texture_width * texture_height *
Texture.gl_format_size(format))()
glTexImage2D(target, 0, format, texture_width, texture_height, 0,
format, GL_UNSIGNED_BYTE, data)
if rectangle:
texture.tex_coords = \
(0., 0., width, 0., width, height, 0., height)
glFlush()
if texture_width == width and texture_height == height:
return texture
return texture.get_region(0, 0, width, height)
def check_PyOpenGL_support(force_enable):
props = {}
try:
if CRASH:
import ctypes
ctypes.string_at(0)
raise Exception("should have crashed!")
elif TIMEOUT > 0:
import time
time.sleep(TIMEOUT)
#log redirection:
def redirect_log(logger_name):
logger = logging.getLogger(logger_name)
assert logger is not None
logger.saved_handlers = logger.handlers
logger.saved_propagate = logger.propagate
logger.handlers = [CaptureHandler()]
logger.propagate = 0
return logger
fhlogger = redirect_log('OpenGL.formathandler')
elogger = redirect_log('OpenGL.extensions')
alogger = redirect_log('OpenGL.acceleratesupport')
arlogger = redirect_log('OpenGL.arrays')
clogger = redirect_log('OpenGL.converters')
import OpenGL
props["pyopengl"] = OpenGL.__version__
from OpenGL.GL import GL_VERSION, GL_EXTENSIONS
from OpenGL.GL import glGetString, glGetInteger, glGetIntegerv
gl_version_str = glGetString(GL_VERSION)
if gl_version_str is None:
raise_fatal_error("OpenGL version is missing - cannot continue")
return {}
gl_major = int(bytestostr(gl_version_str)[0])
gl_minor = int(bytestostr(gl_version_str)[2])
props["opengl"] = gl_major, gl_minor
MIN_VERSION = (1, 1)
if (gl_major, gl_minor) < MIN_VERSION:
raise_fatal_error(
"OpenGL output requires version %s or greater, not %s.%s" %
(".".join([str(x) for x in MIN_VERSION]), gl_major, gl_minor))
else:
log("found valid OpenGL version: %s.%s", gl_major, gl_minor)
from OpenGL import version as OpenGL_version
pyopengl_version = OpenGL_version.__version__
try:
import OpenGL_accelerate #@UnresolvedImport
accel_version = OpenGL_accelerate.__version__
props["accelerate"] = accel_version
log("OpenGL_accelerate version %s", accel_version)
except:
log("OpenGL_accelerate not found")
OpenGL_accelerate = None
accel_version = None
if accel_version is not None and pyopengl_version != accel_version:
global _version_warning_shown
if not _version_warning_shown:
log.warn(
"Warning: version mismatch between PyOpenGL and PyOpenGL-accelerate"
)
log.warn(" %s vs %s", pyopengl_version, accel_version)
log.warn(" this may cause crashes")
_version_warning_shown = True
gl_check_error(
"PyOpenGL vs accelerate version mismatch: %s vs %s" %
(pyopengl_version, accel_version))
vsplit = pyopengl_version.split('.')
#we now require PyOpenGL 3.1 or later
if vsplit[:3] < ['3', '1'] and not force_enable:
raise_fatal_error("PyOpenGL version %s is too old and buggy" %
pyopengl_version)
return {}
props["zerocopy"] = bool(
OpenGL_accelerate) and is_pyopengl_memoryview_safe(
pyopengl_version, accel_version)
try:
extensions = glGetString(GL_EXTENSIONS).decode().split(" ")
except:
log("error querying extensions", exc_info=True)
extensions = []
raise_fatal_error(
"OpenGL could not find the list of GL extensions - does the graphics driver support OpenGL?"
)
log("OpenGL extensions found: %s", csv(extensions))
props["extensions"] = extensions
from OpenGL.arrays.arraydatatype import ArrayDatatype
try:
log("found the following array handlers: %s",
set(ArrayDatatype.getRegistry().values()))
except:
pass
from OpenGL.GL import GL_RENDERER, GL_VENDOR, GL_SHADING_LANGUAGE_VERSION
def fixstring(v):
try:
return str(v).strip()
except:
return str(v)
for d, s, fatal in (("vendor", GL_VENDOR, True), ("renderer",
GL_RENDERER, True),
("shading-language-version",
GL_SHADING_LANGUAGE_VERSION, False)):
try:
v = glGetString(s)
v = fixstring(v.decode())
log("%s: %s", d, v)
except:
if fatal:
gl_check_error("OpenGL property '%s' is missing" % d)
else:
log("OpenGL property '%s' is missing", d)
v = ""
props[d] = v
vendor = props["vendor"]
version_req = VERSION_REQ.get(vendor)
if version_req:
req_maj, req_min = version_req
if gl_major < req_maj or (gl_major == req_maj
and gl_minor < req_min):
if force_enable:
log.warn(
"Warning: '%s' OpenGL driver requires version %i.%i",
vendor, req_maj, req_min)
log.warn(" version %i.%i was found", gl_major, gl_minor)
else:
gl_check_error(
"OpenGL version %i.%i is too old, %i.%i is required for %s"
% (gl_major, gl_minor, req_maj, req_min, vendor))
from OpenGL.GLU import gluGetString, GLU_VERSION, GLU_EXTENSIONS
for d, s in {
"GLU.version": GLU_VERSION,
"GLU.extensions": GLU_EXTENSIONS
}.items():
v = gluGetString(s)
v = v.decode()
log("%s: %s", d, v)
props[d] = v
def match_list(thelist, listname):
for k, vlist in thelist.items():
v = props.get(k)
matches = [x for x in vlist if v.find(x) >= 0]
if matches:
log("%s '%s' found in %s: %s", k, v, listname, vlist)
return (k, v)
log("%s '%s' not found in %s: %s", k, v, listname, vlist)
return None
blacklisted = match_list(BLACKLIST, "blacklist")
greylisted = match_list(GREYLIST, "greylist")
whitelisted = match_list(WHITELIST, "whitelist")
if blacklisted:
if whitelisted:
log.info(
"%s '%s' enabled (found in both blacklist and whitelist)",
*whitelisted)
elif force_enable:
log.warn("Warning: %s '%s' is blacklisted!", *blacklisted)
log.warn(" force enabled by option")
else:
raise_fatal_error("%s '%s' is blacklisted!" % (blacklisted))
safe = bool(whitelisted) or not bool(blacklisted)
if greylisted and not whitelisted:
log.warn("Warning: %s '%s' is greylisted,", *greylisted)
log.warn(" you may want to turn off OpenGL if you encounter bugs")
props["safe"] = safe
#check for specific functions we need:
from OpenGL.GL import glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, glTexEnvi, glHint, glBlendFunc, glLineStipple, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd
check_functions(glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, glTexEnvi, glHint, glBlendFunc, glLineStipple, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd)
#check for framebuffer functions we need:
from OpenGL.GL.ARB.framebuffer_object import GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D
check_functions(GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D)
glEnablei = None
try:
from OpenGL.GL import glEnablei
except:
pass
if not bool(glEnablei):
log.warn(
"OpenGL glEnablei is not available, disabling transparency")
global GL_ALPHA_SUPPORTED
GL_ALPHA_SUPPORTED = False
props["transparency"] = GL_ALPHA_SUPPORTED
for ext in required_extensions:
if ext not in extensions:
raise_fatal_error(
"OpenGL driver lacks support for extension: %s" % ext)
else:
log("Extension %s is present", ext)
#this allows us to do CSC via OpenGL:
#see http://www.opengl.org/registry/specs/ARB/fragment_program.txt
from OpenGL.GL.ARB.fragment_program import glInitFragmentProgramARB
if not glInitFragmentProgramARB():
raise_fatal_error(
"OpenGL output requires glInitFragmentProgramARB")
else:
log("glInitFragmentProgramARB works")
from OpenGL.GL.ARB.texture_rectangle import glInitTextureRectangleARB
if not glInitTextureRectangleARB():
raise_fatal_error(
"OpenGL output requires glInitTextureRectangleARB")
else:
log("glInitTextureRectangleARB works")
from OpenGL.GL.ARB.vertex_program import glGenProgramsARB, glDeleteProgramsARB, \
glBindProgramARB, glProgramStringARB
check_functions(glGenProgramsARB, glDeleteProgramsARB,
glBindProgramARB, glProgramStringARB)
try:
from OpenGL.GL import GL_MAX_TEXTURE_SIZE
texture_size = glGetInteger(GL_MAX_TEXTURE_SIZE)
#this one may be missing?
rect_texture_size = texture_size
try:
from OpenGL.GL import GL_MAX_RECTANGLE_TEXTURE_SIZE
rect_texture_size = glGetInteger(GL_MAX_RECTANGLE_TEXTURE_SIZE)
except ImportError as e:
log("OpenGL: %s", e)
log("using GL_MAX_TEXTURE_SIZE=%s as default", texture_size)
except Exception as e:
emsg = str(e)
if hasattr(e, "description"):
emsg = e.description
gl_check_error("unable to query max texture size: %s" % emsg)
return props
log(
"Texture size GL_MAX_RECTANGLE_TEXTURE_SIZE=%s, GL_MAX_TEXTURE_SIZE=%s",
rect_texture_size, texture_size)
texture_size_limit = min(rect_texture_size, texture_size)
props["texture-size-limit"] = int(texture_size_limit)
try:
from OpenGL.GL import GL_MAX_VIEWPORT_DIMS
v = glGetIntegerv(GL_MAX_VIEWPORT_DIMS)
max_viewport_dims = int(v[0]), int(v[1])
assert max_viewport_dims[
0] >= texture_size_limit and max_viewport_dims[
1] >= texture_size_limit
log("GL_MAX_VIEWPORT_DIMS=%s", max_viewport_dims)
except ImportError as e:
log.error("Error querying max viewport dims: %s", e)
max_viewport_dims = texture_size_limit, texture_size_limit
props["max-viewport-dims"] = max_viewport_dims
return props
finally:
for x in alogger.handlers[0].records:
#strip default message prefix:
msg = x.getMessage().replace(
"No OpenGL_accelerate module loaded: ", "")
if msg == "No module named OpenGL_accelerate":
msg = "missing accelerate module"
if msg == "OpenGL_accelerate module loaded":
log.info(msg)
else:
log.warn("PyOpenGL warning: %s", msg)
#format handler messages:
STRIP_LOG_MESSAGE = "Unable to load registered array format handler "
missing_handlers = []
for x in fhlogger.handlers[0].records:
msg = x.getMessage()
p = msg.find(STRIP_LOG_MESSAGE)
if p < 0:
#unknown message, log it:
log.info(msg)
continue
format_handler = msg[p + len(STRIP_LOG_MESSAGE):]
p = format_handler.find(":")
if p > 0:
format_handler = format_handler[:p]
missing_handlers.append(format_handler)
if len(missing_handlers) > 0:
log.warn("PyOpenGL warning: missing array format handlers: %s",
csv(missing_handlers))
for x in elogger.handlers[0].records:
msg = x.getMessage()
#ignore extension messages:
p = msg.startswith("GL Extension ") and msg.endswith("available")
if not p:
log.info(msg)
missing_accelerators = []
STRIP_AR_HEAD = "Unable to load"
STRIP_AR_TAIL = "from OpenGL_accelerate"
for x in arlogger.handlers[0].records + clogger.handlers[0].records:
msg = x.getMessage()
if msg.startswith(STRIP_AR_HEAD) and msg.endswith(STRIP_AR_TAIL):
m = msg[len(STRIP_AR_HEAD):-len(STRIP_AR_TAIL)].strip()
m = m.replace("accelerators", "").replace("accelerator",
"").strip()
missing_accelerators.append(m)
continue
elif msg.startswith("Using accelerated"):
log(msg)
else:
log.info(msg)
if missing_accelerators:
log.info("OpenGL accelerate missing: %s",
csv(missing_accelerators))
def restore_logger(logger):
logger.handlers = logger.saved_handlers
logger.propagate = logger.saved_propagate
restore_logger(fhlogger)
restore_logger(elogger)
restore_logger(alogger)
restore_logger(arlogger)
restore_logger(clogger)
def check_GL_support(gldrawable,
glcontext,
min_texture_size=0,
force_enable=False):
if not gldrawable.gl_begin(glcontext):
raise ImportError("gl_begin failed on %s" % gldrawable)
props = {}
try:
if SILENCE_FORMAT_HANDLER_LOGGER:
logging.getLogger('OpenGL.formathandler').setLevel(logging.WARN)
import OpenGL
props["pyopengl"] = OpenGL.__version__
from OpenGL.GL import GL_VERSION, GL_EXTENSIONS
from OpenGL.GL import glGetString, glGetInteger
gl_major = int(glGetString(GL_VERSION)[0])
gl_minor = int(glGetString(GL_VERSION)[2])
props["opengl"] = gl_major, gl_minor
MIN_VERSION = (1, 1)
if (gl_major, gl_minor) < MIN_VERSION:
gl_check_error(
"OpenGL output requires version %s or greater, not %s.%s" %
(".".join([str(x) for x in MIN_VERSION]), gl_major, gl_minor))
else:
log("found valid OpenGL version: %s.%s", gl_major, gl_minor)
try:
extensions = glGetString(GL_EXTENSIONS).split(" ")
except:
gl_check_error(
"OpenGL could not find the list of GL extensions - does the graphics driver support OpenGL?"
)
log("OpenGL extensions found: %s", ", ".join(extensions))
props["extensions"] = extensions
from OpenGL.GL import GL_RENDERER, GL_VENDOR, GL_SHADING_LANGUAGE_VERSION
for d, s in {
"vendor": GL_VENDOR,
"renderer": GL_RENDERER,
"shading language version": GL_SHADING_LANGUAGE_VERSION
}.items():
try:
v = glGetString(s)
log("%s: %s", d, v)
except:
gl_check_error("OpenGL property '%s' is missing" % d)
v = ""
props[d] = v
from OpenGL.GLU import gluGetString, GLU_VERSION, GLU_EXTENSIONS
for d, s in {
"GLU version": GLU_VERSION,
"GLU extensions": GLU_EXTENSIONS
}.items():
v = gluGetString(s)
log("%s: %s", d, v)
props[d] = v
for k, vlist in BLACKLIST.items():
v = props.get(k)
if v in vlist:
if force_enable:
log.warn("Warning: %s '%s' is blacklisted!", k, v)
else:
gl_check_error("%s '%s' is blacklisted!" % (k, v))
#check for specific functions we need:
from OpenGL.GL import glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd
check_functions(glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd)
#check for framebuffer functions we need:
from OpenGL.GL.ARB.framebuffer_object import GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D
check_functions(GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D)
for ext in required_extensions:
if ext not in extensions:
gl_check_error(
"OpenGL driver lacks support for extension: %s" % ext)
else:
log("Extension %s is present", ext)
#this allows us to do CSC via OpenGL:
#see http://www.opengl.org/registry/specs/ARB/fragment_program.txt
from OpenGL.GL.ARB.fragment_program import glInitFragmentProgramARB
if not glInitFragmentProgramARB():
gl_check_error("OpenGL output requires glInitFragmentProgramARB")
else:
log("glInitFragmentProgramARB works")
from OpenGL.GL.ARB.texture_rectangle import glInitTextureRectangleARB
if not glInitTextureRectangleARB():
gl_check_error("OpenGL output requires glInitTextureRectangleARB")
else:
log("glInitTextureRectangleARB works")
from OpenGL.GL.ARB.vertex_program import glGenProgramsARB, glDeleteProgramsARB, \
glBindProgramARB, glProgramStringARB
check_functions(glGenProgramsARB, glDeleteProgramsARB,
glBindProgramARB, glProgramStringARB)
from OpenGL.GL import GL_MAX_RECTANGLE_TEXTURE_SIZE
texture_size = glGetInteger(GL_MAX_RECTANGLE_TEXTURE_SIZE)
if min_texture_size > texture_size:
gl_check_error("The texture size is too small: %s" % texture_size)
else:
log("Texture size GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB=%s",
texture_size)
return props
finally:
if SILENCE_FORMAT_HANDLER_LOGGER:
try:
logging.getLogger('OpenGL.formathandler').setLevel(
logging.INFO)
except:
pass
gldrawable.gl_end()
def check_GL_support(gldrawable,
glcontext,
min_texture_size=0,
force_enable=False):
if not gldrawable.gl_begin(glcontext):
raise ImportError("gl_begin failed on %s" % gldrawable)
props = {}
try:
#log redirection:
def redirect_log(logger_name):
logger = logging.getLogger(logger_name)
assert logger is not None
logger.saved_handlers = logger.handlers
logger.saved_propagate = logger.propagate
logger.handlers = [CaptureHandler()]
logger.propagate = 0
return logger
fhlogger = redirect_log('OpenGL.formathandler')
elogger = redirect_log('OpenGL.extensions')
alogger = redirect_log('OpenGL.acceleratesupport')
arlogger = redirect_log('OpenGL.arrays')
clogger = redirect_log('OpenGL.converters')
import OpenGL
props["pyopengl"] = OpenGL.__version__
from OpenGL.GL import GL_VERSION, GL_EXTENSIONS
from OpenGL.GL import glGetString, glGetInteger
gl_version_str = glGetString(GL_VERSION)
if gl_version_str is None:
gl_check_error("OpenGL version is missing - cannot continue")
return {}
gl_major = int(gl_version_str[0])
gl_minor = int(gl_version_str[2])
props["opengl"] = gl_major, gl_minor
MIN_VERSION = (1, 1)
if (gl_major, gl_minor) < MIN_VERSION:
gl_check_error(
"OpenGL output requires version %s or greater, not %s.%s" %
(".".join([str(x) for x in MIN_VERSION]), gl_major, gl_minor))
else:
log("found valid OpenGL version: %s.%s", gl_major, gl_minor)
try:
extensions = glGetString(GL_EXTENSIONS).split(" ")
except:
gl_check_error(
"OpenGL could not find the list of GL extensions - does the graphics driver support OpenGL?"
)
log("OpenGL extensions found: %s", ", ".join(extensions))
props["extensions"] = extensions
from OpenGL.arrays.arraydatatype import ArrayDatatype
try:
log("found the following array handlers: %s",
set(ArrayDatatype.getRegistry().values()))
except:
pass
from OpenGL.GL import GL_RENDERER, GL_VENDOR, GL_SHADING_LANGUAGE_VERSION
for d, s, fatal in (("vendor", GL_VENDOR, True), ("renderer",
GL_RENDERER, True),
("shading language version",
GL_SHADING_LANGUAGE_VERSION, False)):
try:
v = glGetString(s)
log("%s: %s", d, v)
except:
if fatal:
gl_check_error("OpenGL property '%s' is missing" % d)
else:
log.warn("OpenGL property '%s' is missing" % d)
v = ""
props[d] = v
from OpenGL.GLU import gluGetString, GLU_VERSION, GLU_EXTENSIONS
for d, s in {
"GLU version": GLU_VERSION,
"GLU extensions": GLU_EXTENSIONS
}.items():
v = gluGetString(s)
log("%s: %s", d, v)
props[d] = v
for k, vlist in BLACKLIST.items():
v = props.get(k)
if v in vlist:
if force_enable:
log.warn("Warning: %s '%s' is blacklisted!", k, v)
else:
gl_check_error("%s '%s' is blacklisted!" % (k, v))
#check for specific functions we need:
from OpenGL.GL import glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd
check_functions(glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd)
glEnablei = None
try:
from OpenGL.GL import glEnablei
except:
pass
if not bool(glEnablei):
log.warn(
"OpenGL glEnablei is not available, disabling transparency")
global GL_ALPHA_SUPPORTED
GL_ALPHA_SUPPORTED = False
#check for framebuffer functions we need:
from OpenGL.GL.ARB.framebuffer_object import GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D
check_functions(GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D)
for ext in required_extensions:
if ext not in extensions:
gl_check_error(
"OpenGL driver lacks support for extension: %s" % ext)
else:
log("Extension %s is present", ext)
#this allows us to do CSC via OpenGL:
#see http://www.opengl.org/registry/specs/ARB/fragment_program.txt
from OpenGL.GL.ARB.fragment_program import glInitFragmentProgramARB
if not glInitFragmentProgramARB():
gl_check_error("OpenGL output requires glInitFragmentProgramARB")
else:
log("glInitFragmentProgramARB works")
from OpenGL.GL.ARB.texture_rectangle import glInitTextureRectangleARB
if not glInitTextureRectangleARB():
gl_check_error("OpenGL output requires glInitTextureRectangleARB")
else:
log("glInitTextureRectangleARB works")
from OpenGL.GL.ARB.vertex_program import glGenProgramsARB, glDeleteProgramsARB, \
glBindProgramARB, glProgramStringARB
check_functions(glGenProgramsARB, glDeleteProgramsARB,
glBindProgramARB, glProgramStringARB)
try:
from OpenGL.GL import GL_MAX_TEXTURE_SIZE
texture_size = glGetInteger(GL_MAX_TEXTURE_SIZE)
#this one may be missing?
rect_texture_size = texture_size
try:
from OpenGL.GL import GL_MAX_RECTANGLE_TEXTURE_SIZE
rect_texture_size = glGetInteger(GL_MAX_RECTANGLE_TEXTURE_SIZE)
except ImportError, e:
log("OpenGL: %s", e)
log("using GL_MAX_TEXTURE_SIZE=%s as default", texture_size)
except Exception, e:
emsg = str(e)
if hasattr(e, "description"):
emsg = e.description
gl_check_error("unable to query max texture size: %s" % emsg)
return props
if min_texture_size > texture_size or min_texture_size > rect_texture_size:
gl_check_error("The texture size is too small: %s" % texture_size)
else:
log(
"Texture size GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB=%s, GL_MAX_TEXTURE_SIZE=%s",
rect_texture_size, texture_size)
return props
def check_GL_support(gldrawable, glcontext, min_texture_size=0, force_enable=False):
if not gldrawable.gl_begin(glcontext):
raise ImportError("gl_begin failed on %s" % gldrawable)
props = {}
try:
if SILENCE_FORMAT_HANDLER_LOGGER:
debug("silencing formathandler warnings")
logging.getLogger('OpenGL.formathandler').setLevel(logging.WARN)
import OpenGL
props["pyopengl"] = OpenGL.__version__
from OpenGL.GL import GL_VERSION, GL_EXTENSIONS
from OpenGL.GL import glGetString, glGetInteger
gl_version_str = glGetString(GL_VERSION)
if gl_version_str is None:
gl_check_error("OpenGL version is missing - cannot continue")
return {}
gl_major = int(gl_version_str[0])
gl_minor = int(gl_version_str[2])
props["opengl"] = gl_major, gl_minor
MIN_VERSION = (1,1)
if (gl_major, gl_minor) < MIN_VERSION:
gl_check_error("OpenGL output requires version %s or greater, not %s.%s" %
(".".join([str(x) for x in MIN_VERSION]), gl_major, gl_minor))
else:
debug("found valid OpenGL version: %s.%s", gl_major, gl_minor)
try:
extensions = glGetString(GL_EXTENSIONS).split(" ")
except:
gl_check_error("OpenGL could not find the list of GL extensions - does the graphics driver support OpenGL?")
debug("OpenGL extensions found: %s", ", ".join(extensions))
props["extensions"] = extensions
from OpenGL.arrays.arraydatatype import ArrayDatatype
try:
debug("found the following array handlers: %s", set(ArrayDatatype.getRegistry().values()))
except:
pass
from OpenGL.GL import GL_RENDERER, GL_VENDOR, GL_SHADING_LANGUAGE_VERSION
for d,s,fatal in (("vendor", GL_VENDOR, True),
("renderer", GL_RENDERER, True),
("shading language version", GL_SHADING_LANGUAGE_VERSION, False)):
try:
v = glGetString(s)
debug("%s: %s", d, v)
except:
if fatal:
gl_check_error("OpenGL property '%s' is missing" % d)
else:
log.warn("OpenGL property '%s' is missing" % d)
v = ""
props[d] = v
from OpenGL.GLU import gluGetString, GLU_VERSION, GLU_EXTENSIONS
for d,s in {"GLU version": GLU_VERSION, "GLU extensions":GLU_EXTENSIONS}.items():
v = gluGetString(s)
debug("%s: %s", d, v)
props[d] = v
for k,vlist in BLACKLIST.items():
v = props.get(k)
if v in vlist:
if force_enable:
log.warn("Warning: %s '%s' is blacklisted!", k, v)
else:
gl_check_error("%s '%s' is blacklisted!" % (k, v))
#check for specific functions we need:
from OpenGL.GL import glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd
check_functions(glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd)
#check for framebuffer functions we need:
from OpenGL.GL.ARB.framebuffer_object import GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D
check_functions(GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D)
for ext in required_extensions:
if ext not in extensions:
gl_check_error("OpenGL driver lacks support for extension: %s" % ext)
else:
debug("Extension %s is present", ext)
#this allows us to do CSC via OpenGL:
#see http://www.opengl.org/registry/specs/ARB/fragment_program.txt
from OpenGL.GL.ARB.fragment_program import glInitFragmentProgramARB
if not glInitFragmentProgramARB():
gl_check_error("OpenGL output requires glInitFragmentProgramARB")
else:
debug("glInitFragmentProgramARB works")
from OpenGL.GL.ARB.texture_rectangle import glInitTextureRectangleARB
if not glInitTextureRectangleARB():
gl_check_error("OpenGL output requires glInitTextureRectangleARB")
else:
debug("glInitTextureRectangleARB works")
from OpenGL.GL.ARB.vertex_program import glGenProgramsARB, glDeleteProgramsARB, \
glBindProgramARB, glProgramStringARB
check_functions(glGenProgramsARB, glDeleteProgramsARB, glBindProgramARB, glProgramStringARB)
from OpenGL.GL import GL_MAX_RECTANGLE_TEXTURE_SIZE, GL_MAX_TEXTURE_SIZE
texture_size = glGetInteger(GL_MAX_TEXTURE_SIZE)
rect_texture_size = glGetInteger(GL_MAX_RECTANGLE_TEXTURE_SIZE)
if min_texture_size>texture_size or min_texture_size>rect_texture_size:
gl_check_error("The texture size is too small: %s" % texture_size)
else:
debug("Texture size GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB=%s, GL_MAX_TEXTURE_SIZE=%s", rect_texture_size, texture_size)
return props
finally:
if SILENCE_FORMAT_HANDLER_LOGGER:
try:
logging.getLogger('OpenGL.formathandler').setLevel(logging.INFO)
except:
pass
gldrawable.gl_end()
def check_GL_support(gldrawable, glcontext, min_texture_size=0, force_enable=False):
if not gldrawable.gl_begin(glcontext):
raise ImportError("gl_begin failed on %s" % gldrawable)
props = {}
try:
#log redirection:
def redirect_log(logger_name):
logger = logging.getLogger(logger_name)
assert logger is not None
logger.saved_handlers = logger.handlers
logger.saved_propagate = logger.propagate
logger.handlers = [CaptureHandler()]
logger.propagate = 0
return logger
fhlogger = redirect_log('OpenGL.formathandler')
elogger = redirect_log('OpenGL.extensions')
alogger = redirect_log('OpenGL.acceleratesupport')
arlogger = redirect_log('OpenGL.arrays')
clogger = redirect_log('OpenGL.converters')
import OpenGL
props["pyopengl"] = OpenGL.__version__
from OpenGL.GL import GL_VERSION, GL_EXTENSIONS
from OpenGL.GL import glGetString, glGetInteger
gl_version_str = glGetString(GL_VERSION)
if gl_version_str is None:
gl_check_error("OpenGL version is missing - cannot continue")
return {}
gl_major = int(gl_version_str[0])
gl_minor = int(gl_version_str[2])
props["opengl"] = gl_major, gl_minor
MIN_VERSION = (1,1)
if (gl_major, gl_minor) < MIN_VERSION:
gl_check_error("OpenGL output requires version %s or greater, not %s.%s" %
(".".join([str(x) for x in MIN_VERSION]), gl_major, gl_minor))
else:
log("found valid OpenGL version: %s.%s", gl_major, gl_minor)
from OpenGL import version as OpenGL_version
try:
import OpenGL_accelerate
except:
OpenGL_accelerate = None
props["zerocopy"] = is_pyopengl_memoryview_safe(OpenGL_version.__version__) and bool(OpenGL_accelerate)
try:
extensions = glGetString(GL_EXTENSIONS).split(" ")
except:
extensions = []
gl_check_error("OpenGL could not find the list of GL extensions - does the graphics driver support OpenGL?")
log("OpenGL extensions found: %s", ", ".join(extensions))
props["extensions"] = extensions
from OpenGL.arrays.arraydatatype import ArrayDatatype
try:
log("found the following array handlers: %s", set(ArrayDatatype.getRegistry().values()))
except:
pass
from OpenGL.GL import GL_RENDERER, GL_VENDOR, GL_SHADING_LANGUAGE_VERSION
for d,s,fatal in (("vendor", GL_VENDOR, True),
("renderer", GL_RENDERER, True),
("shading language version", GL_SHADING_LANGUAGE_VERSION, False)):
try:
v = glGetString(s)
log("%s: %s", d, v)
except:
if fatal:
gl_check_error("OpenGL property '%s' is missing" % d)
else:
log("OpenGL property '%s' is missing", d)
v = ""
props[d] = v
from OpenGL.GLU import gluGetString, GLU_VERSION, GLU_EXTENSIONS
for d,s in {"GLU version": GLU_VERSION, "GLU extensions":GLU_EXTENSIONS}.items():
v = gluGetString(s)
log("%s: %s", d, v)
props[d] = v
blacklisted = None
whitelisted = None
for k,vlist in BLACKLIST.items():
v = props.get(k)
if v in vlist:
log("%s '%s' found in blacklist: %s", k, v, vlist)
blacklisted = k, v
for k,vlist in WHITELIST.items():
v = props.get(k)
if v in vlist:
log("%s '%s' found in whitelist: %s", k, v, vlist)
whitelisted = k, v
if blacklisted:
if whitelisted:
log.info("%s '%s' enabled (found in both blacklist and whitelist)", *whitelisted)
elif force_enable:
log.warn("Warning: %s '%s' is blacklisted!", *blacklisted)
else:
gl_check_error("%s '%s' is blacklisted!" % (blacklisted))
#check for specific functions we need:
from OpenGL.GL import glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, glTexEnvi, glHint, glBlendFunc, glLineStipple, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd
check_functions(glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, glTexEnvi, glHint, glBlendFunc, glLineStipple, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd)
glEnablei = None
try:
from OpenGL.GL import glEnablei
except:
pass
if not bool(glEnablei):
log.warn("OpenGL glEnablei is not available, disabling transparency")
global GL_ALPHA_SUPPORTED
GL_ALPHA_SUPPORTED = False
#check for framebuffer functions we need:
from OpenGL.GL.ARB.framebuffer_object import GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D
check_functions(GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D)
for ext in required_extensions:
if ext not in extensions:
gl_check_error("OpenGL driver lacks support for extension: %s" % ext)
else:
log("Extension %s is present", ext)
#this allows us to do CSC via OpenGL:
#see http://www.opengl.org/registry/specs/ARB/fragment_program.txt
from OpenGL.GL.ARB.fragment_program import glInitFragmentProgramARB
if not glInitFragmentProgramARB():
gl_check_error("OpenGL output requires glInitFragmentProgramARB")
else:
log("glInitFragmentProgramARB works")
from OpenGL.GL.ARB.texture_rectangle import glInitTextureRectangleARB
if not glInitTextureRectangleARB():
gl_check_error("OpenGL output requires glInitTextureRectangleARB")
else:
log("glInitTextureRectangleARB works")
from OpenGL.GL.ARB.vertex_program import glGenProgramsARB, glDeleteProgramsARB, \
glBindProgramARB, glProgramStringARB
check_functions(glGenProgramsARB, glDeleteProgramsARB, glBindProgramARB, glProgramStringARB)
try:
from OpenGL.GL import GL_MAX_TEXTURE_SIZE
texture_size = glGetInteger(GL_MAX_TEXTURE_SIZE)
#this one may be missing?
rect_texture_size = texture_size
try:
from OpenGL.GL import GL_MAX_RECTANGLE_TEXTURE_SIZE
rect_texture_size = glGetInteger(GL_MAX_RECTANGLE_TEXTURE_SIZE)
except ImportError, e:
log("OpenGL: %s", e)
log("using GL_MAX_TEXTURE_SIZE=%s as default", texture_size)
except Exception, e:
emsg = str(e)
if hasattr(e, "description"):
emsg = e.description
gl_check_error("unable to query max texture size: %s" % emsg)
return props
if min_texture_size>texture_size or min_texture_size>rect_texture_size:
gl_check_error("The texture size is too small: %s" % texture_size)
else:
log("Texture size GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB=%s, GL_MAX_TEXTURE_SIZE=%s", rect_texture_size, texture_size)
props["texture-size-limit"] = min(rect_texture_size, texture_size)
return props
def do_check_GL_support(force_enable):
props = {}
try:
#log redirection:
def redirect_log(logger_name):
logger = logging.getLogger(logger_name)
assert logger is not None
logger.saved_handlers = logger.handlers
logger.saved_propagate = logger.propagate
logger.handlers = [CaptureHandler()]
logger.propagate = 0
return logger
fhlogger = redirect_log('OpenGL.formathandler')
elogger = redirect_log('OpenGL.extensions')
alogger = redirect_log('OpenGL.acceleratesupport')
arlogger = redirect_log('OpenGL.arrays')
clogger = redirect_log('OpenGL.converters')
import OpenGL
props["pyopengl"] = OpenGL.__version__
from OpenGL.GL import GL_VERSION, GL_EXTENSIONS
from OpenGL.GL import glGetString, glGetInteger
gl_version_str = glGetString(GL_VERSION)
if gl_version_str is None:
gl_check_error("OpenGL version is missing - cannot continue")
return {}
gl_major = int(gl_version_str[0])
gl_minor = int(gl_version_str[2])
props["opengl"] = gl_major, gl_minor
MIN_VERSION = (1, 1)
if (gl_major, gl_minor) < MIN_VERSION:
gl_check_error(
"OpenGL output requires version %s or greater, not %s.%s" %
(".".join([str(x) for x in MIN_VERSION]), gl_major, gl_minor))
else:
log("found valid OpenGL version: %s.%s", gl_major, gl_minor)
from OpenGL import version as OpenGL_version
try:
import OpenGL_accelerate
except:
OpenGL_accelerate = None
props["zerocopy"] = is_pyopengl_memoryview_safe(
OpenGL_version.__version__) and bool(OpenGL_accelerate)
try:
extensions = glGetString(GL_EXTENSIONS).decode().split(" ")
except:
log("error querying extensions", exc_info=True)
extensions = []
gl_check_error(
"OpenGL could not find the list of GL extensions - does the graphics driver support OpenGL?"
)
log("OpenGL extensions found: %s", ", ".join(extensions))
props["extensions"] = extensions
from OpenGL.arrays.arraydatatype import ArrayDatatype
try:
log("found the following array handlers: %s",
set(ArrayDatatype.getRegistry().values()))
except:
pass
from OpenGL.GL import GL_RENDERER, GL_VENDOR, GL_SHADING_LANGUAGE_VERSION
for d, s, fatal in (("vendor", GL_VENDOR, True), ("renderer",
GL_RENDERER, True),
("shading language version",
GL_SHADING_LANGUAGE_VERSION, False)):
try:
v = glGetString(s)
v = v.decode()
log("%s: %s", d, v)
except:
if fatal:
gl_check_error("OpenGL property '%s' is missing" % d)
else:
log("OpenGL property '%s' is missing", d)
v = ""
props[d] = v
from OpenGL.GLU import gluGetString, GLU_VERSION, GLU_EXTENSIONS
for d, s in {
"GLU version": GLU_VERSION,
"GLU extensions": GLU_EXTENSIONS
}.items():
v = gluGetString(s)
v = v.decode()
log("%s: %s", d, v)
props[d] = v
blacklisted = None
whitelisted = None
greylisted = None
for k, vlist in BLACKLIST.items():
v = props.get(k)
if v in vlist:
log("%s '%s' found in blacklist: %s", k, v, vlist)
blacklisted = k, v
for k, vlist in GREYLIST.items():
v = props.get(k)
if v in vlist:
log("%s '%s' found in greylist: %s", k, v, vlist)
greylisted = k, v
for k, vlist in WHITELIST.items():
v = props.get(k)
if v in vlist:
log("%s '%s' found in whitelist: %s", k, v, vlist)
whitelisted = k, v
if blacklisted:
if whitelisted:
log.info(
"%s '%s' enabled (found in both blacklist and whitelist)",
*whitelisted)
elif force_enable:
log.warn("Warning: %s '%s' is blacklisted!", *blacklisted)
else:
gl_check_error("%s '%s' is blacklisted!" % (blacklisted))
safe = bool(whitelisted) or not (bool(greylisted) or bool(blacklisted))
if safe and sys.version_info[0] > 2:
log.warn(
"Warning: OpenGL python3 support is not enabled by default")
safe = False
props["safe"] = safe
#check for specific functions we need:
from OpenGL.GL import glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, glTexEnvi, glHint, glBlendFunc, glLineStipple, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd
check_functions(glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, glTexEnvi, glHint, glBlendFunc, glLineStipple, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd)
glEnablei = None
try:
from OpenGL.GL import glEnablei
except:
pass
if not bool(glEnablei):
log.warn(
"OpenGL glEnablei is not available, disabling transparency")
global GL_ALPHA_SUPPORTED
GL_ALPHA_SUPPORTED = False
#check for framebuffer functions we need:
from OpenGL.GL.ARB.framebuffer_object import GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D
check_functions(GL_FRAMEBUFFER, \
GL_COLOR_ATTACHMENT0, glGenFramebuffers, glBindFramebuffer, glFramebufferTexture2D)
for ext in required_extensions:
if ext not in extensions:
gl_check_error(
"OpenGL driver lacks support for extension: %s" % ext)
else:
log("Extension %s is present", ext)
#this allows us to do CSC via OpenGL:
#see http://www.opengl.org/registry/specs/ARB/fragment_program.txt
from OpenGL.GL.ARB.fragment_program import glInitFragmentProgramARB
if not glInitFragmentProgramARB():
gl_check_error("OpenGL output requires glInitFragmentProgramARB")
else:
log("glInitFragmentProgramARB works")
from OpenGL.GL.ARB.texture_rectangle import glInitTextureRectangleARB
if not glInitTextureRectangleARB():
gl_check_error("OpenGL output requires glInitTextureRectangleARB")
else:
log("glInitTextureRectangleARB works")
from OpenGL.GL.ARB.vertex_program import glGenProgramsARB, glDeleteProgramsARB, \
glBindProgramARB, glProgramStringARB
check_functions(glGenProgramsARB, glDeleteProgramsARB,
glBindProgramARB, glProgramStringARB)
try:
from OpenGL.GL import GL_MAX_TEXTURE_SIZE
texture_size = glGetInteger(GL_MAX_TEXTURE_SIZE)
#this one may be missing?
rect_texture_size = texture_size
try:
from OpenGL.GL import GL_MAX_RECTANGLE_TEXTURE_SIZE
rect_texture_size = glGetInteger(GL_MAX_RECTANGLE_TEXTURE_SIZE)
except ImportError as e:
log("OpenGL: %s", e)
log("using GL_MAX_TEXTURE_SIZE=%s as default", texture_size)
except Exception as e:
emsg = str(e)
if hasattr(e, "description"):
emsg = e.description
gl_check_error("unable to query max texture size: %s" % emsg)
return props
log(
"Texture size GL_MAX_RECTANGLE_TEXTURE_SIZE=%s, GL_MAX_TEXTURE_SIZE=%s",
rect_texture_size, texture_size)
props["texture-size-limit"] = min(rect_texture_size, texture_size)
return props
finally:
for x in alogger.handlers[0].records:
#strip default message prefix:
msg = x.getMessage().replace(
"No OpenGL_accelerate module loaded: ", "")
if msg == "No module named OpenGL_accelerate":
msg = "missing accelerate module"
if msg != "OpenGL_accelerate module loaded":
msg = "PyOpenGL warning: %s" % msg
log.info(msg)
#format handler messages:
STRIP_LOG_MESSAGE = "Unable to load registered array format handler "
missing_handlers = []
for x in fhlogger.handlers[0].records:
msg = x.getMessage()
p = msg.find(STRIP_LOG_MESSAGE)
if p < 0:
#unknown message, log it:
log.info(msg)
continue
format_handler = msg[p + len(STRIP_LOG_MESSAGE):]
p = format_handler.find(":")
if p > 0:
format_handler = format_handler[:p]
missing_handlers.append(format_handler)
if len(missing_handlers) > 0:
log.warn("PyOpenGL warning: missing array format handlers: %s",
", ".join(missing_handlers))
for x in elogger.handlers[0].records:
msg = x.getMessage()
#ignore extension messages:
p = msg.startswith("GL Extension ") and msg.endswith("available")
if not p:
log.info(msg)
missing_accelerators = []
STRIP_AR_HEAD = "Unable to load"
STRIP_AR_TAIL = "from OpenGL_accelerate"
for x in arlogger.handlers[0].records + clogger.handlers[0].records:
msg = x.getMessage()
if msg.startswith(STRIP_AR_HEAD) and msg.endswith(STRIP_AR_TAIL):
m = msg[len(STRIP_AR_HEAD):-len(STRIP_AR_TAIL)].strip()
m = m.replace("accelerators", "").replace("accelerator",
"").strip()
missing_accelerators.append(m)
continue
log.info(msg)
if missing_accelerators:
log.info("OpenGL accelerate missing: %s",
", ".join(missing_accelerators))
def restore_logger(logger):
logger.handlers = logger.saved_handlers
logger.propagate = logger.saved_propagate
restore_logger(fhlogger)
restore_logger(elogger)
restore_logger(alogger)
restore_logger(arlogger)
restore_logger(clogger)
def create(width, height, format=GL_RGBA, rectangle=False, mipmap=False):
'''Create a texture based on size.'''
target = GL_TEXTURE_2D
if rectangle:
if _is_pow2(width) and _is_pow2(height):
rectangle = False
else:
rectangle = False
try:
if Texture._has_texture_nv is None:
Texture._has_texture_nv = glInitTextureRectangleNV()
if Texture._has_texture_nv:
target = GL_TEXTURE_RECTANGLE_NV
rectangle = True
except Exception:
pass
try:
if Texture._has_texture_arb is None:
Texture._has_texture_arb = glInitTextureRectangleARB()
if not rectangle and Texture._has_texture_arb:
target = GL_TEXTURE_RECTANGLE_ARB
rectangle = True
except Exception:
pass
if not rectangle:
pymt_logger.debug(
'Texture: Missing support for rectangular texture')
else:
# Can't do mipmap with rectangle texture
mipmap = False
if rectangle:
texture_width = width
texture_height = height
else:
texture_width = _nearest_pow2(width)
texture_height = _nearest_pow2(height)
texid = glGenTextures(1)
texture = Texture(texture_width, texture_height, target, texid,
mipmap=mipmap)
texture.bind()
texture.wrap = GL_CLAMP_TO_EDGE
if mipmap:
texture.min_filter = GL_LINEAR_MIPMAP_LINEAR
#texture.mag_filter = GL_LINEAR_MIPMAP_LINEAR
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE)
else:
texture.min_filter = GL_LINEAR
texture.mag_filter = GL_LINEAR
if not Texture.is_gl_format_supported(format):
format = Texture.convert_gl_format(format)
data = (GLubyte * texture_width * texture_height *
Texture.gl_format_size(format))()
glTexImage2D(target, 0, format, texture_width, texture_height, 0,
format, GL_UNSIGNED_BYTE, data)
if rectangle:
texture.tex_coords = \
(0., 0., width, 0., width, height, 0., height)
glFlush()
if texture_width == width and texture_height == height:
return texture
return texture.get_region(0, 0, width, height)
def check_GL_support(gldrawable, glcontext):
if not gldrawable.gl_begin(glcontext):
raise ImportError("gl_begin failed on %s" % gldrawable)
props = {}
try:
if SILENCE_FORMAT_HANDLER_LOGGER:
logging.getLogger('OpenGL.formathandler').setLevel(logging.WARN)
import OpenGL
props["pyopengl"] = OpenGL.__version__
from OpenGL.GL import GL_VERSION, GL_EXTENSIONS
from OpenGL.GL import glGetString
gl_major = int(glGetString(GL_VERSION)[0])
gl_minor = int(glGetString(GL_VERSION)[2])
props["opengl"] = gl_major, gl_minor
MIN_VERSION = (1, 1)
if (gl_major, gl_minor) < MIN_VERSION:
gl_check_error(
"OpenGL output requires version %s or greater, not %s.%s" %
(".".join([str(x) for x in MIN_VERSION]), gl_major, gl_minor))
else:
log("found valid OpenGL version: %s.%s", gl_major, gl_minor)
extensions = glGetString(GL_EXTENSIONS).split(" ")
log("OpenGL extensions found: %s", ", ".join(extensions))
props["extensions"] = extensions
from OpenGL.GL import GL_RENDERER, GL_VENDOR, GL_SHADING_LANGUAGE_VERSION
for d, s in {
"vendor": GL_VENDOR,
"renderer": GL_RENDERER,
"shading language version": GL_SHADING_LANGUAGE_VERSION
}.items():
v = glGetString(s)
log("%s: %s", d, v)
props[d] = v
from OpenGL.GLU import gluGetString, GLU_VERSION, GLU_EXTENSIONS
for d, s in {
"GLU version": GLU_VERSION,
"GLU extensions": GLU_EXTENSIONS
}.items():
v = gluGetString(s)
log("%s: %s", d, v)
props[d] = v
#check for specific functions we need:
from OpenGL.GL import glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd
check_functions(glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd)
for ext in required_extensions:
if ext not in extensions:
gl_check_error(
"OpenGL driver lacks support for extension: %s" % ext)
else:
log("Extension %s is present", ext)
#this allows us to do CSC via OpenGL:
#see http://www.opengl.org/registry/specs/ARB/fragment_program.txt
from OpenGL.GL.ARB.fragment_program import glInitFragmentProgramARB
if not glInitFragmentProgramARB():
gl_check_error("OpenGL output requires glInitFragmentProgramARB")
else:
log("glInitFragmentProgramARB works")
from OpenGL.GL.ARB.texture_rectangle import glInitTextureRectangleARB
if not glInitTextureRectangleARB():
gl_check_error("OpenGL output requires glInitTextureRectangleARB")
else:
log("glInitTextureRectangleARB works")
from OpenGL.GL.ARB.vertex_program import glGenProgramsARB, glDeleteProgramsARB, \
glBindProgramARB, glProgramStringARB
check_functions(glGenProgramsARB, glDeleteProgramsARB,
glBindProgramARB, glProgramStringARB)
return props
finally:
if SILENCE_FORMAT_HANDLER_LOGGER:
try:
logging.getLogger('OpenGL.formathandler').setLevel(
logging.INFO)
except:
pass
gldrawable.gl_end()
def check_GL_support(gldrawable, glcontext):
if not gldrawable.gl_begin(glcontext):
raise ImportError("gl_begin failed on %s" % gldrawable)
props = {}
try:
if SILENCE_FORMAT_HANDLER_LOGGER:
logging.getLogger('OpenGL.formathandler').setLevel(logging.WARN)
import OpenGL
props["pyopengl"] = OpenGL.__version__
from OpenGL.GL import GL_VERSION, GL_EXTENSIONS
from OpenGL.GL import glGetString
gl_major = int(glGetString(GL_VERSION)[0])
gl_minor = int(glGetString(GL_VERSION)[2])
props["opengl"] = gl_major, gl_minor
MIN_VERSION = (1,1)
if (gl_major, gl_minor) < MIN_VERSION:
gl_check_error("OpenGL output requires version %s or greater, not %s.%s" %
(".".join([str(x) for x in MIN_VERSION]), gl_major, gl_minor))
else:
log("found valid OpenGL version: %s.%s", gl_major, gl_minor)
extensions = glGetString(GL_EXTENSIONS).split(" ")
log("OpenGL extensions found: %s", ", ".join(extensions))
props["extensions"] = extensions
from OpenGL.GL import GL_RENDERER, GL_VENDOR, GL_SHADING_LANGUAGE_VERSION
for d,s in {"vendor":GL_VENDOR, "renderer":GL_RENDERER,
"shading language version":GL_SHADING_LANGUAGE_VERSION}.items():
v = glGetString(s)
log("%s: %s", d, v)
props[d] = v
from OpenGL.GLU import gluGetString, GLU_VERSION, GLU_EXTENSIONS
for d,s in {"GLU version": GLU_VERSION, "GLU extensions":GLU_EXTENSIONS}.items():
v = gluGetString(s)
log("%s: %s", d, v)
props[d] = v
#check for specific functions we need:
from OpenGL.GL import glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd
check_functions(glActiveTexture, glTexSubImage2D, glTexCoord2i, \
glViewport, glMatrixMode, glLoadIdentity, glOrtho, \
glEnableClientState, glGenTextures, glDisable, \
glBindTexture, glPixelStorei, glEnable, glBegin, glFlush, \
glTexParameteri, \
glTexImage2D, \
glMultiTexCoord2i, \
glVertex2i, glEnd)
for ext in required_extensions:
if ext not in extensions:
gl_check_error("OpenGL driver lacks support for extension: %s" % ext)
else:
log("Extension %s is present", ext)
#this allows us to do CSC via OpenGL:
#see http://www.opengl.org/registry/specs/ARB/fragment_program.txt
from OpenGL.GL.ARB.fragment_program import glInitFragmentProgramARB
if not glInitFragmentProgramARB():
gl_check_error("OpenGL output requires glInitFragmentProgramARB")
else:
log("glInitFragmentProgramARB works")
from OpenGL.GL.ARB.texture_rectangle import glInitTextureRectangleARB
if not glInitTextureRectangleARB():
gl_check_error("OpenGL output requires glInitTextureRectangleARB")
else:
log("glInitTextureRectangleARB works")
from OpenGL.GL.ARB.vertex_program import glGenProgramsARB, glDeleteProgramsARB, \
glBindProgramARB, glProgramStringARB
check_functions(glGenProgramsARB, glDeleteProgramsARB, glBindProgramARB, glProgramStringARB)
return props
finally:
if SILENCE_FORMAT_HANDLER_LOGGER:
try:
logging.getLogger('OpenGL.formathandler').setLevel(logging.INFO)
except:
pass
gldrawable.gl_end()
