Examples with IntBuffer java.nio.IntBuffer used on opensource projects

Example 11 with IntBuffer

use of java.nio.IntBuffer in project druid by druid-io.

the class IntListTest method testGetBaseList.

@Test
public void testGetBaseList() {
    int listSize = 2;
    IntList list = new IntList(listSize);
    int[] expectedArray = { 1, 2 };
    list.add(expectedArray[0]);
    list.add(expectedArray[1]);
    IntBuffer outputBuffer = list.getBaseList(0);
    Assert.assertEquals("Buffer size does not match", 2, outputBuffer.limit());
    int[] actualArray = new int[outputBuffer.capacity()];
    outputBuffer.get(actualArray);
    Assert.assertArrayEquals("Arrays are not matching", expectedArray, actualArray);
}

Example 12 with IntBuffer

use of java.nio.IntBuffer in project druid by druid-io.

the class IntListTest method testNullCaseGetBaseList.

@Test
public void testNullCaseGetBaseList() {
    final int intSize = 2;
    IntList list = new IntList(intSize);
    list.set(2 * intSize, 100);
    IntBuffer outBuffer;
    outBuffer = list.getBaseList(0);
    Assert.assertNull("Should be Null", outBuffer);
}

Example 13 with IntBuffer

use of java.nio.IntBuffer in project druid by druid-io.

the class IntList method getBaseList.

public IntBuffer getBaseList(int index) {
    final int[] array = baseLists.get(index);
    if (array == null) {
        return null;
    }
    final IntBuffer retVal = IntBuffer.wrap(array);
    if (index + 1 == baseListCount()) {
        retVal.limit(maxIndex - (index * allocateSize) + 1);
    }
    return retVal.asReadOnlyBuffer();
}

Example 14 with IntBuffer

use of java.nio.IntBuffer in project android_frameworks_base by ParanoidAndroid.

the class GLLogWrapper method doArrayElement.

private void doArrayElement(StringBuilder builder, boolean enabled, String name, PointerInfo pointer, int index) {
    if (!enabled) {
        return;
    }
    builder.append(" ");
    builder.append(name + ":{");
    if (pointer == null || pointer.mTempByteBuffer == null) {
        builder.append("undefined }");
        return;
    }
    if (pointer.mStride < 0) {
        builder.append("invalid stride");
        return;
    }
    int stride = pointer.getStride();
    ByteBuffer byteBuffer = pointer.mTempByteBuffer;
    int size = pointer.mSize;
    int type = pointer.mType;
    int sizeofType = pointer.sizeof(type);
    int byteOffset = stride * index;
    for (int i = 0; i < size; i++) {
        if (i > 0) {
            builder.append(", ");
        }
        switch(type) {
            case GL_BYTE:
                {
                    byte d = byteBuffer.get(byteOffset);
                    builder.append(Integer.toString(d));
                }
                break;
            case GL_UNSIGNED_BYTE:
                {
                    byte d = byteBuffer.get(byteOffset);
                    builder.append(Integer.toString(0xff & d));
                }
                break;
            case GL_SHORT:
                {
                    ShortBuffer shortBuffer = byteBuffer.asShortBuffer();
                    short d = shortBuffer.get(byteOffset / 2);
                    builder.append(Integer.toString(d));
                }
                break;
            case GL_FIXED:
                {
                    IntBuffer intBuffer = byteBuffer.asIntBuffer();
                    int d = intBuffer.get(byteOffset / 4);
                    builder.append(Integer.toString(d));
                }
                break;
            case GL_FLOAT:
                {
                    FloatBuffer intBuffer = byteBuffer.asFloatBuffer();
                    float d = intBuffer.get(byteOffset / 4);
                    builder.append(Float.toString(d));
                }
                break;
            default:
                builder.append("?");
                break;
        }
        byteOffset += sizeofType;
    }
    builder.append("}");
}

Example 15 with IntBuffer

use of java.nio.IntBuffer in project gl-react-native by ProjectSeptemberInc.

the class GLCanvas method createSnapshot.

private Bitmap createSnapshot(int x, int y, int w, int h) {
    int[] bitmapBuffer = new int[w * h];
    int[] bitmapSource = new int[w * h];
    IntBuffer intBuffer = IntBuffer.wrap(bitmapBuffer);
    intBuffer.position(0);
    try {
        glReadPixels(x, y, w, h, GL_RGBA, GL_UNSIGNED_BYTE, intBuffer);
        int offset1, offset2;
        for (int i = 0; i < h; i++) {
            offset1 = i * w;
            offset2 = (h - i - 1) * w;
            for (int j = 0; j < w; j++) {
                int texturePixel = bitmapBuffer[offset1 + j];
                int blue = (texturePixel >> 16) & 0xff;
                int red = (texturePixel << 16) & 0x00ff0000;
                int pixel = (texturePixel & 0xff00ff00) | red | blue;
                bitmapSource[offset2 + j] = pixel;
            }
        }
    } catch (GLException e) {
        return null;
    }
    return Bitmap.createBitmap(bitmapSource, w, h, Bitmap.Config.ARGB_8888);
}