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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.ide.eclipse.gltrace;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import java.nio.ShortBuffer;
public class GLUtils {
public static String formatData(byte[] data, GLEnum format) {
switch (format) {
case GL_BYTE:
return formatBytes(data, false);
case GL_UNSIGNED_BYTE:
return formatBytes(data, true);
case GL_SHORT:
return formatShorts(data, false);
case GL_UNSIGNED_SHORT:
return formatShorts(data, true);
case GL_FIXED:
return formatInts(data);
case GL_FLOAT:
return formatFloats(data);
default:
return ""; //$NON-NLS-1$
}
}
private static String formatFloats(byte[] data) {
FloatBuffer bb = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN).asFloatBuffer();
StringBuilder sb = new StringBuilder(bb.capacity() * 3);
while (bb.remaining() > 0) {
sb.append(String.format("%.4f", bb.get()));
sb.append(',');
sb.append('\n');
}
return sb.toString();
}
private static String formatInts(byte[] data) {
IntBuffer bb = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN).asIntBuffer();
StringBuilder sb = new StringBuilder(bb.capacity() * 3);
while (bb.remaining() > 0) {
sb.append(bb.get());
sb.append(',');
sb.append('\n');
}
return sb.toString();
}
private static String formatShorts(byte[] data, boolean unsigned) {
ShortBuffer bb = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN).asShortBuffer();
StringBuilder sb = new StringBuilder(bb.capacity() * 3);
while (bb.remaining() > 0) {
if (unsigned) {
sb.append(bb.get() & 0xffff);
} else {
sb.append(bb.get());
}
sb.append(',');
sb.append('\n');
}
return sb.toString();
}
private static String formatBytes(byte[] data, boolean unsigned) {
ByteBuffer bb = ByteBuffer.wrap(data);
StringBuilder sb = new StringBuilder(bb.capacity() * 3);
while (bb.remaining() > 0) {
if (unsigned) {
sb.append(bb.get() & 0xff);
} else {
sb.append(bb.get());
}
sb.append(',');
sb.append('\n');
}
return sb.toString();
}
}
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