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 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 __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 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 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 clinit(self):
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()))
self.ctx = cl.Context(properties=props)
self.queue = cl.CommandQueue(self.ctx)
def clinit(self):
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()))
self.ctx = cl.Context(properties=props)
self.queue = cl.CommandQueue(self.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
from OpenGL.GLUT import *
from OpenGL.GLU import *
from OpenGL.GL import *
from OpenGL import platform as gl_platform
from OpenGL import GLX
from pycl import *
import numpy as np
glutInit()
gl_window = glutCreateWindow("window")
gl_ctx = gl_platform.GetCurrentContext()
glx_display = GLX.glXGetCurrentDisplay()
cl_ctx_props = {
CL_GL_CONTEXT_KHR: gl_ctx,
CL_GLX_DISPLAY_KHR: glx_display,
}
cl_ctx = clCreateContext(other_props=cl_ctx_props)
cl_queue = clCreateCommandQueue(cl_ctx)
def idle():
input_data = np.arange(20, dtype=np.float32)
gl_buf = glGenBuffers(1)
glBindBuffer(GL_ARRAY_BUFFER, gl_buf)
glBufferData(GL_ARRAY_BUFFER, input_data, GL_STATIC_DRAW)
glFinish()
cl_buf = clCreateFromGLBuffer(cl_ctx, gl_buf)
clEnqueueAcquireGLObjects(cl_queue, [cl_buf])
from OpenGL.GLUT import *
from OpenGL.GLU import *
from OpenGL.GL import *
from OpenGL import platform as gl_platform
from OpenGL import GLX
from pycl import *
import numpy as np
glutInit()
gl_window = glutCreateWindow("window")
gl_ctx = gl_platform.GetCurrentContext()
glx_display = GLX.glXGetCurrentDisplay()
cl_ctx_props = {
CL_GL_CONTEXT_KHR: gl_ctx,
CL_GLX_DISPLAY_KHR: glx_display,
}
cl_ctx = clCreateContext(other_props=cl_ctx_props)
cl_queue = clCreateCommandQueue(cl_ctx)
def idle():
input_data = np.arange(20, dtype=np.float32)
gl_buf = glGenBuffers(1)
glBindBuffer(GL_ARRAY_BUFFER, gl_buf)
glBufferData(GL_ARRAY_BUFFER, input_data, GL_STATIC_DRAW)
glFinish()
cl_buf = clCreateFromGLBuffer(cl_ctx, gl_buf)
