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package com.jogamp.opencl;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.nio.IntBuffer;
import javax.imageio.ImageIO;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;
import static java.lang.System.*;
import static com.jogamp.common.nio.Buffers.*;
import static com.jogamp.opencl.CLImageFormat.ChannelOrder.*;
import static com.jogamp.opencl.CLImageFormat.ChannelType.*;
/**
* Test testing CLImage API.
* @author Michael Bien
*/
public class CLImageTest {
private static int[] pixels;
@BeforeClass
public static void init() throws IOException {
BufferedImage bi = ImageIO.read(CLImageTest.class.getResourceAsStream("jogamp.png"));
pixels = new int[128*128*4];
bi.getData().getPixels(0, 0, 128, 128, pixels);
}
public CLDevice getCompatibleDevice() {
CLPlatform[] platforms = CLPlatform.listCLPlatforms();
for (CLPlatform platform : platforms) {
CLDevice[] devices = platform.listCLDevices();
for (CLDevice device : devices) {
if(device.isImageSupportAvailable()) {
return device;
}
}
}
return null;
}
@Test
public void supportedImageFormatsTest() {
CLDevice device = getCompatibleDevice();
if(device == null) {
out.println("WARNING: can not test image api.");
return;
}
CLContext context = CLContext.create(device);
try{
CLImageFormat[] formats = context.getSupportedImage2dFormats();
assertTrue(formats.length > 0);
out.println("sample image format: "+formats[0]);
// for (CLImageFormat format : formats) {
// out.println(format);
// }
}finally{
context.release();
}
}
@Test
public void image2dCopyTest() throws IOException {
CLDevice device = getCompatibleDevice();
if(device == null) {
out.println("WARNING: can not test image api.");
return;
}
CLContext context = CLContext.create(device);
CLCommandQueue queue = device.createCommandQueue();
try{
CLImageFormat format = new CLImageFormat(RGBA, UNSIGNED_INT32);
CLImage2d<IntBuffer> imageA = context.createImage2d(newDirectIntBuffer(pixels), 128, 128, format);
CLImage2d<IntBuffer> imageB = context.createImage2d(newDirectIntBuffer(pixels.length), 128, 128, format);
queue.putWriteImage(imageA, false)
.putCopyImage(imageA, imageB)
.putReadImage(imageB, true);
IntBuffer bufferA = imageA.getBuffer();
IntBuffer bufferB = imageB.getBuffer();
while(bufferA.hasRemaining()) {
assertEquals(bufferA.get(), bufferB.get());
}
}finally{
context.release();
}
}
@Test
public void image2dKernelCopyTest() throws IOException {
CLDevice device = getCompatibleDevice();
if(device == null) {
out.println("WARNING: can not test image api.");
return;
}
CLContext context = CLContext.create(device);
String src =
"constant sampler_t imageSampler = CLK_NORMALIZED_COORDS_FALSE | CLK_ADDRESS_CLAMP | CLK_FILTER_NEAREST; \n" +
"kernel void image2dCopy(read_only image2d_t input, write_only image2d_t output) { \n" +
" int2 coord = (int2)(get_global_id(0), get_global_id(1)); \n" +
" uint4 temp = read_imageui(input, imageSampler, coord); \n" +
" write_imageui(output, coord, temp); \n" +
"} \n";
CLKernel kernel = context.createProgram(src).build().createCLKernel("image2dCopy");
CLCommandQueue queue = device.createCommandQueue();
try{
CLImageFormat format = new CLImageFormat(RGBA, UNSIGNED_INT32);
CLImage2d<IntBuffer> imageA = context.createImage2d(newDirectIntBuffer(pixels), 128, 128, format);
CLImage2d<IntBuffer> imageB = context.createImage2d(newDirectIntBuffer(pixels.length), 128, 128, format);
kernel.putArgs(imageA, imageB);
queue.putWriteImage(imageA, false)
.put2DRangeKernel(kernel, 0, 0, 128, 128, 0, 0)
.putReadImage(imageB, true);
IntBuffer bufferA = imageA.getBuffer();
IntBuffer bufferB = imageB.getBuffer();
while(bufferA.hasRemaining()) {
assertEquals(bufferA.get(), bufferB.get());
}
}finally{
context.release();
}
}
}
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