def get_gl_sharing_context_properties():
ctx_props = cl.context_properties
from OpenGL import platform as gl_platform, GLX, WGL
props = []
import sys
if sys.platform in ["linux", "linux2"]:
props.append(
(ctx_props.GL_CONTEXT_KHR, gl_platform.GetCurrentContext()))
props.append(
(ctx_props.GLX_DISPLAY_KHR,
GLX.glXGetCurrentDisplay()))
elif sys.platform == "win32":
props.append(
(ctx_props.GL_CONTEXT_KHR, gl_platform.GetCurrentContext()))
props.append(
(ctx_props.WGL_HDC_KHR,
WGL.wglGetCurrentDC()))
elif sys.platform == "darwin":
props.append(
(ctx_props.CONTEXT_PROPERTY_USE_CGL_SHAREGROUP_APPLE,
cl.get_apple_cgl_share_group()))
else:
raise NotImplementedError("platform '%s' not yet supported"
% sys.platform)
return props
def get_gl_sharing_context_properties():
ctx_props = cl.context_properties
from OpenGL import platform as gl_platform
props = []
import sys
if sys.platform in ["linux", "linux2"]:
from OpenGL import GLX
props.append(
(ctx_props.GL_CONTEXT_KHR, gl_platform.GetCurrentContext()))
props.append((ctx_props.GLX_DISPLAY_KHR, GLX.glXGetCurrentDisplay()))
elif sys.platform == "win32":
from OpenGL import WGL
props.append(
(ctx_props.GL_CONTEXT_KHR, gl_platform.GetCurrentContext()))
props.append((ctx_props.WGL_HDC_KHR, WGL.wglGetCurrentDC()))
elif sys.platform == "darwin":
props.append((ctx_props.CONTEXT_PROPERTY_USE_CGL_SHAREGROUP_APPLE,
cl.get_apple_cgl_share_group()))
else:
raise NotImplementedError("platform '%s' not yet supported" %
sys.platform)
return props
def __init__(self):
plats = cl.get_platforms()
ctx_props = cl.context_properties
self.props = [(ctx_props.PLATFORM, plats[0]),
(ctx_props.GL_CONTEXT_KHR, platform.GetCurrentContext())]
if sys.platform == "linux2":
self.props.append((ctx_props.GLX_DISPLAY_KHR,
GLX.glXGetCurrentDisplay()))
elif sys.platform == "win32":
self.props.append((ctx_props.WGL_HDC_KHR, WGL.wglGetCurrentDC()))
self.ctx = cl.Context(properties=self.props)
self.cross4 = ElementwiseKernel(
self.ctx, "__global const float4 *u, "
"__global const float4 *v, "
"__global const float4 *w, "
"__global float4 *r",
"r[i] = cross4(u[i],v[i],w[i])",
"cross4_final",
preamble=cross4_preamble)
self.distance2 = ElementwiseKernel(
self.ctx, "__global const float4 *a, "
"__global const float4 *b, "
"__global float4 *d",
"d[i] = distance2(a[i],b[i])",
"distance_final",
preamble=distance_preamble)
self.place_hyperspheres()
def TestMethod( self, method ):
print 'Starting method', method
module = pixel_format
hdc = WGL.wglGetCurrentDC()
items = [(name,getattr( module, name)) for name in names ]
failures = []
if method == pixel_format.wglGetPixelFormatAttribivARB:
result = WGL.INT32( )
else:
result = WGL.FLOAT( )
for item in items:
try:
pf = WGL.GetPixelFormat(hdc)
method(
hdc,
pf,
0,
1,
WGL.INT32(item[1]),
result,
)
except WindowsError, err:
failures.append((item,err))
else:
print '%20s\t%r'%( item[0], result.value)
def TestMethod(self, method):
print 'Starting method', method
module = pixel_format
hdc = WGL.wglGetCurrentDC()
items = [(name, getattr(module, name)) for name in names]
failures = []
if method == pixel_format.wglGetPixelFormatAttribivARB:
result = WGL.INT32()
else:
result = WGL.FLOAT()
for item in items:
try:
pf = WGL.GetPixelFormat(hdc)
method(
hdc,
pf,
0,
1,
WGL.INT32(item[1]),
result,
)
except WindowsError, err:
failures.append((item, err))
else:
print '%20s\t%r' % (item[0], result.value)
def initialize():
plats = cl.get_platforms()
ctx_props = cl.context_properties
props = [(ctx_props.PLATFORM, plats[0]),
(ctx_props.GL_CONTEXT_KHR, platform.GetCurrentContext())]
import sys
if sys.platform == "linux2":
props.append(
(ctx_props.GLX_DISPLAY_KHR,
GLX.glXGetCurrentDisplay()))
elif sys.platform == "win32":
props.append(
(ctx_props.WGL_HDC_KHR,
WGL.wglGetCurrentDC()))
ctx = cl.Context(properties=props)
glClearColor(1, 1, 1, 1)
glColor(0, 0, 1)
vbo = glGenBuffers(1)
glBindBuffer(GL_ARRAY_BUFFER, vbo)
rawGlBufferData(GL_ARRAY_BUFFER, n_vertices * 2 * 4, None, GL_STATIC_DRAW)
glEnableClientState(GL_VERTEX_ARRAY)
glVertexPointer(2, GL_FLOAT, 0, None)
coords_dev = cl.GLBuffer(ctx, cl.mem_flags.READ_WRITE, int(vbo))
prog = cl.Program(ctx, src).build()
queue = cl.CommandQueue(ctx)
cl.enqueue_acquire_gl_objects(queue, [coords_dev])
prog.generate_sin(queue, (n_vertices,), None, coords_dev)
cl.enqueue_release_gl_objects(queue, [coords_dev])
queue.finish()
glFlush()
def initialize():
plats = cl.get_platforms()
ctx_props = cl.context_properties
props = [(ctx_props.PLATFORM, plats[0]),
(ctx_props.GL_CONTEXT_KHR, platform.GetCurrentContext())]
import sys
if sys.platform == "linux2":
props.append((ctx_props.GLX_DISPLAY_KHR, GLX.glXGetCurrentDisplay()))
elif sys.platform == "win32":
props.append((ctx_props.WGL_HDC_KHR, WGL.wglGetCurrentDC()))
ctx = cl.Context(properties=props)
glClearColor(1, 1, 1, 1)
glColor(0, 0, 1)
vbo = glGenBuffers(1)
glBindBuffer(GL_ARRAY_BUFFER, vbo)
rawGlBufferData(GL_ARRAY_BUFFER, n_vertices * 2 * 4, None, GL_STATIC_DRAW)
glEnableClientState(GL_VERTEX_ARRAY)
glVertexPointer(2, GL_FLOAT, 0, None)
coords_dev = cl.GLBuffer(ctx, cl.mem_flags.READ_WRITE, int(vbo))
prog = cl.Program(ctx, src).build()
queue = cl.CommandQueue(ctx)
cl.enqueue_acquire_gl_objects(queue, [coords_dev])
prog.generate_sin(queue, (n_vertices, ), None, coords_dev)
cl.enqueue_release_gl_objects(queue, [coords_dev])
queue.finish()
glFlush()
def _with_context(self, hdc, proc, flush=False):
old_hdc = wgl.wglGetCurrentDC()
old_ctx = wgl.wglGetCurrentContext()
result = wgl.wglMakeCurrent(hdc, self._win_context)
try:
self._with_share_group(proc)
if flush:
if self._win_dblbuf:
wgl.SwapBuffers(hdc)
else:
gl.glFlush()
finally:
wgl.wglMakeCurrent(old_hdc, old_ctx)
def _with_context(self, hdc, proc, flush=False):
old_hdc = wgl.wglGetCurrentDC()
old_ctx = wgl.wglGetCurrentContext()
result = wgl.wglMakeCurrent(hdc, self._win_context)
try:
self._with_share_group(proc)
if flush:
if self._win_dblbuf:
wgl.SwapBuffers(hdc)
else:
gl.glFlush()
finally:
wgl.wglMakeCurrent(old_hdc, old_ctx)
def get_context_properties(self, plat):
#reference context properties enumeration
out = []
#link OpenCL context platform
out.append((context_properties.PLATFORM, plat))
#link OpenGL context
out.append((context_properties.GL_CONTEXT_KHR, platform.GetCurrentContext()))
#link platform specific window contexts
if "GLX" in globals():
out.append((context_properties.GLX_DISPLAY_KHR, GLX.glXGetCurrentDisplay()))
if "WGL" in globals():
out.append((context_properties.WGL_HDC_KHR, WGL.wglGetCurrentDC()))
#return context properties
return out
def get_context_properties(self, plat):
#reference context properties enumeration
out = []
#link OpenCL context platform
out.append((context_properties.PLATFORM, plat))
#link OpenGL context
out.append(
(context_properties.GL_CONTEXT_KHR, platform.GetCurrentContext()))
#link platform specific window contexts
if "GLX" in globals():
out.append((context_properties.GLX_DISPLAY_KHR,
GLX.glXGetCurrentDisplay()))
if "WGL" in globals():
out.append((context_properties.WGL_HDC_KHR, WGL.wglGetCurrentDC()))
#return context properties
return out
def TestMethod( self, method ):
print 'Starting method', method
module = pixel_format
hdc = WGL.wglGetCurrentDC()
items = [(name,getattr( module, name)) for name in names ]
failures = []
if method == pixel_format.wglGetPixelFormatAttribivARB:
result = WGL.INT32( )
else:
result = WGL.FLOAT( )
for item in items:
try:
pf = WGL.GetPixelFormat(hdc)
method(
hdc,
pf,
0,
1,
WGL.INT32(item[1]),
result,
)
except WindowsError as err:
failures.append((item,err))
else:
print '%20s\t%r'%( item[0], result.value)
if failures:
print 'FAILURES'
for ((name,value),err) in failures:
print name, value, '->' as err
items = [ getattr(module,name) for name in names ]
try:
method(
hdc,
WGL.GetPixelFormat(hdc),
0,
1,
WGL.INT32(item[1]),
result
)
except WindowsError as err:
print method, 'failed on getting full set'
else:
print method, result
def BuildFont(self):
wgldc = WGL.wglGetCurrentDC()
hDC = win32ui.CreateDCFromHandle(wgldc)
self.base = glGenLists(32 + 96)
# // Storage For 96 Characters, plus 32 at the start...
# CreateFont () takes a python dictionary to specify the requested font properties.
font_properties = {
"name": "Courier New",
"width": 0,
"height": -24,
"weight": 800
}
font = win32ui.CreateFont(font_properties)
# // Selects The Font We Want
oldfont = hDC.SelectObject(font)
# // Builds 96 Characters Starting At Character 32
WGL.wglUseFontBitmaps(wgldc, 32, 96, self.base + 32)
# // reset the font
hDC.SelectObject(oldfont)
