public static BufferedImage convertImageToRGB(
CLParams clParams,
float[] sphericalImageFloats,
int width,
int height,
ConversionType inputType) {
FloatBuffer fb = Buffers.newDirectFloatBuffer(sphericalImageFloats);
CLBuffer<FloatBuffer> sphericalImageBuffer =
clParams.getContext().createBuffer(fb, CLBuffer.Mem.READ_WRITE);
out.println("Transforming image to rgb coords");
CLKernel kernel = clParams.getKernel("convert_" + typeToString(inputType) + "_to_rgb");
kernel.putArg(sphericalImageBuffer).putArg(width).putArg(height).rewind();
long time = nanoTime();
clParams.getQueue().putWriteBuffer(sphericalImageBuffer, false);
clParams.getQueue().put2DRangeKernel(kernel, 0, 0, width, height, 0, 0);
clParams.getQueue().putReadBuffer(sphericalImageBuffer, true);
time = nanoTime() - time;
out.println("computation took: " + (time / 1000000) + "ms");
BufferedImage rgbImage =
ImageUtils.createImage(width, height, sphericalImageBuffer, BufferedImage.TYPE_INT_RGB);
return rgbImage;
}
public static CLBuffer<FloatBuffer> convertRgbTo(
CLParams clParams, BufferedImage image, ConversionType type) {
out.println("Transforming image to spherical coords");
int width = image.getWidth();
int height = image.getHeight();
float[] pixels = image.getRaster().getPixels(0, 0, width, height, (float[]) null);
// copy to direct float buffer
FloatBuffer fb = Buffers.newDirectFloatBuffer(pixels);
// allocate a OpenCL buffer using the direct fb as working copy
CLBuffer<FloatBuffer> buffer = clParams.getContext().createBuffer(fb, CLBuffer.Mem.READ_WRITE);
CLKernel kernel = clParams.getKernel("convert_rgb_to_" + typeToString(type));
kernel.putArg(buffer).putArg(image.getWidth()).putArg(image.getHeight()).rewind();
long time = nanoTime();
clParams.getQueue().putWriteBuffer(buffer, false);
clParams.getQueue().put2DRangeKernel(kernel, 0, 0, image.getWidth(), image.getHeight(), 0, 0);
clParams.getQueue().putReadBuffer(buffer, true);
time = nanoTime() - time;
out.println("computation took: " + (time / 1000000) + "ms");
return buffer;
}
