def main(argv):
app = QtGui.QApplication(sys.argv)
widget = CGLPlotWidget(aspect=1)
gl_context = widget.context()
gl_context.makeCurrent()
data = np.array(image[:, :, :3].sum(-1), dtype=np.float32)
shape = list(data.shape)
print shape
plat, = cl.get_platforms()
ati, intel = plat.get_devices()
print intel
cl_context = cl.Context(devices=[intel])
implot = ImagePlot(widget.context(), cl_context, shape, share=False, interp=Interp.NEAREST)
cl_data = cl.Buffer(cl_context, cl.mem_flags.READ_WRITE, data.nbytes)
import pylab
cdict = pylab.cm.jet._segmentdata
pipe_segment = ColorMap(gl_context, cl_context, cdict,
cl_data, implot.texture.cl_image,
shape, clim=(np.float32(data.min()), np.float32(data.max()))
)
cl.enqueue_copy(implot.queue, cl_data, data)
implot.queue.finish()
implot._pipe_segments.append(pipe_segment)
implot.process()
widget.add_plot(implot)
widget.show()
widget.resize(480, 640,)
bring_to_front()
sys.exit(app.exec_())
pipe_segment = ComputationalPipe(gl_context, cl_context, (n_vertices,), None,
generate_sin,
plot1.vtx_array.cl_buffer, np.float32(1.1))
plot1.add_pipe_segment(pipe_segment)
pipe_segment = ComputationalPipe(gl_context, cl_context, (n_vertices,), None,
generate_sin,
plot2.vtx_array.cl_buffer, np.float32(0.6))
plot2.add_pipe_segment(pipe_segment)
plot1.process()
plot2.process()
canvas.add_plot(plot1)
canvas.add_plot(plot2)
widget = QtGui.QWidget()
widget_layout = QtGui.QVBoxLayout(widget)
widget.setLayout(widget_layout)
widget_layout.addWidget(canvas)
slider = QtGui.QSlider(widget)
def change_a(value):
pipe_segment.kernel_args[1] = np.float32(float(value) / 100.0)
pipe_segment.update()
slider.valueChanged.connect(change_a)
