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

Example 51 with ShortBuffer

use of java.nio.ShortBuffer in project android_frameworks_base by crdroidandroid.

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 52 with ShortBuffer

use of java.nio.ShortBuffer in project JMRI by JMRI.

the class JavaSoundAudioBuffer method convertAudioEndianness.

/**
     * Converts the endianness of an AudioBuffer to the format required by the
     * JRE.
     *
     * @param audioData      byte array containing the read PCM data
     * @param twoByteSamples true if 16-bits per sample
     * @return byte array containing converted PCM data
     */
private static byte[] convertAudioEndianness(byte[] audioData, boolean twoByteSamples) {
    // Create ByteBuffer for output and set endianness
    ByteBuffer out = ByteBuffer.allocate(audioData.length);
    out.order(ByteOrder.nativeOrder());
    // Wrap the audioData into a ByteBuffer for input and set endianness
    // (always Little Endian for a WAV file)
    ByteBuffer in = ByteBuffer.wrap(audioData);
    in.order(ByteOrder.LITTLE_ENDIAN);
    // Check if we have double-byte samples (i.e. 16-bit)
    if (twoByteSamples) {
        // If so, create ShortBuffer views of the in and out ByteBuffers
        // for further processing
        ShortBuffer outShort = out.asShortBuffer();
        ShortBuffer inShort = in.asShortBuffer();
        // Loop through appending data to the output buffer
        while (inShort.hasRemaining()) {
            outShort.put(inShort.get());
        }
    } else {
        // Otherwise, just loop through appending data to the output buffer
        while (in.hasRemaining()) {
            out.put(in.get());
        }
    }
    // Rewind the ByteBuffer
    out.rewind();
    // Convert output to an array if necessary
    if (!out.hasArray()) {
        // Allocate space
        byte[] array = new byte[out.capacity()];
        // fill the array
        out.get(array);
        // clear the ByteBuffer
        out.clear();
        return array;
    }
    return out.array();
}

Example 53 with ShortBuffer

use of java.nio.ShortBuffer in project jdk8u_jdk by JetBrains.

the class TrueTypeFont method lookupName.

/* Return the requested name in the requested locale, for the
     * MS platform ID. If the requested locale isn't found, return US
     * English, if that isn't found, return null and let the caller
     * figure out how to handle that.
     */
protected String lookupName(short findLocaleID, int findNameID) {
    String foundName = null;
    byte[] name = new byte[1024];
    ByteBuffer buffer = getTableBuffer(nameTag);
    if (buffer != null) {
        ShortBuffer sbuffer = buffer.asShortBuffer();
        // format - not needed.
        sbuffer.get();
        short numRecords = sbuffer.get();
        /* The name table uses unsigned shorts. Many of these
             * are known small values that fit in a short.
             * The values that are sizes or offsets into the table could be
             * greater than 32767, so read and store those as ints
             */
        int stringPtr = ((int) sbuffer.get()) & 0xffff;
        for (int i = 0; i < numRecords; i++) {
            short platformID = sbuffer.get();
            if (platformID != MS_PLATFORM_ID) {
                sbuffer.position(sbuffer.position() + 5);
                // skip over this record.
                continue;
            }
            short encodingID = sbuffer.get();
            short langID = sbuffer.get();
            short nameID = sbuffer.get();
            int nameLen = ((int) sbuffer.get()) & 0xffff;
            int namePtr = (((int) sbuffer.get()) & 0xffff) + stringPtr;
            if (nameID == findNameID && ((foundName == null && langID == ENGLISH_LOCALE_ID) || langID == findLocaleID)) {
                buffer.position(namePtr);
                buffer.get(name, 0, nameLen);
                foundName = makeString(name, nameLen, encodingID);
                if (langID == findLocaleID) {
                    return foundName;
                }
            }
        }
    }
    return foundName;
}

Example 54 with ShortBuffer

use of java.nio.ShortBuffer in project jdk8u_jdk by JetBrains.

the class TrueTypeFont method getStyleMetrics.

@Override
public void getStyleMetrics(float pointSize, float[] metrics, int offset) {
    if (ulSize == 0f && ulPos == 0f) {
        ByteBuffer head_Table = getTableBuffer(headTag);
        int upem = -1;
        if (head_Table != null && head_Table.capacity() >= 18) {
            ShortBuffer sb = head_Table.asShortBuffer();
            upem = sb.get(9) & 0xffff;
            if (upem < 16 || upem > 16384) {
                upem = 2048;
            }
        }
        ByteBuffer os2_Table = getTableBuffer(os_2Tag);
        setStrikethroughMetrics(os2_Table, upem);
        ByteBuffer post_Table = getTableBuffer(postTag);
        setUnderlineMetrics(post_Table, upem);
    }
    metrics[offset] = stPos * pointSize;
    metrics[offset + 1] = stSize * pointSize;
    metrics[offset + 2] = ulPos * pointSize;
    metrics[offset + 3] = ulSize * pointSize;
}

Example 55 with ShortBuffer

use of java.nio.ShortBuffer in project jdk8u_jdk by JetBrains.

the class TrueTypeFont method setUnderlineMetrics.

private void setUnderlineMetrics(ByteBuffer postTable, int upem) {
    if (postTable == null || postTable.capacity() < 12 || upem < 0) {
        ulSize = .05f;
        ulPos = .1f;
        return;
    }
    ShortBuffer sb = postTable.asShortBuffer();
    ulSize = sb.get(5) / (float) upem;
    ulPos = -sb.get(4) / (float) upem;
}