/**
* Returns a copy of the specified buffer, with the specified new size. The new size must be greater than or equal
* to the specified buffer's size. If the new size is greater than the specified buffer's size, this returns a new
* buffer which is partially filled with the contents of the specified buffer. The returned buffer is a backed by a
* direct ByteBuffer if and only if the specified buffer is direct.
*
* @param buffer the buffer to copy.
* @param newSize the new buffer's size, in shorts.
*
* @return the new buffer, with the specified size.
*
* @throws ArgumentException if the buffer is null, if the new size is negative, or if the new size is less
* than the buffer's remaing elements.
*/
public static ShortBuffer copyOf(ShortBuffer buffer, int newSize)
{
if (newSize < 0 || newSize < buffer.remaining())
{
String message = Logging.getMessage("generic.SizeOutOfRange", newSize);
Logging.logger().severe(message);
throw new ArgumentException(message);
}
ShortBuffer newBuffer = newShortBuffer(newSize, buffer.isDirect());
int pos = buffer.position(); // Save the input buffer's current position.
try
{
newBuffer.put(buffer);
newBuffer.rewind();
}
finally
{
buffer.position(pos); // Restore the input buffer's original position.
}
return(newBuffer);
}
public MyRenderer(BasicCustomVideoRenderer parent)
{
this.mCustomVideoRenderer = parent;
ByteBuffer bb = ByteBuffer.allocateDirect(mXYZCoords.Length * 4);
bb.order(ByteOrder.nativeOrder());
mVertexBuffer = bb.asFloatBuffer();
mVertexBuffer.put(mXYZCoords);
mVertexBuffer.position(0);
ByteBuffer tb = ByteBuffer.allocateDirect(mUVCoords.Length * 4);
tb.order(ByteOrder.nativeOrder());
mTextureBuffer = tb.asFloatBuffer();
mTextureBuffer.put(mUVCoords);
mTextureBuffer.position(0);
ByteBuffer dlb = ByteBuffer.allocateDirect(mVertexIndex.Length * 2);
dlb.order(ByteOrder.nativeOrder());
mDrawListBuffer = dlb.asShortBuffer();
mDrawListBuffer.put(mVertexIndex);
mDrawListBuffer.position(0);
}
protected int replaceNaN(ShortBuffer shortBuffer, short value)
{
int length = shortBuffer.remaining();
int numValues = 0;
if (this.tmpBuffer == null || this.tmpBuffer.length < shortBuffer.remaining())
{
this.tmpBuffer = new short[length];
}
shortBuffer.get(this.tmpBuffer, 0, length);
shortBuffer.flip();
for (int i = 0; i < length; i++)
{
if (isNoValueShort(this.tmpBuffer[i]))
{
this.tmpBuffer[i] = value;
}
else
{
numValues++;
}
}
shortBuffer.put(this.tmpBuffer, 0, length);
shortBuffer.flip();
return(numValues);
}
private void initTriangle()
{
// float has 4 bytes
ByteBuffer vbb = ByteBuffer.allocateDirect(_nrOfVertices * 3 * 4);
vbb.order(ByteOrder.nativeOrder());
_vertexBuffer = vbb.asFloatBuffer();
// short has 2 bytes
ByteBuffer ibb = ByteBuffer.allocateDirect(_nrOfVertices * 2);
ibb.order(ByteOrder.nativeOrder());
_indexBuffer = ibb.asShortBuffer();
float[] coords =
{
-0.5f, -0.5f, 0f, // (x1, y1, z1)
0.5f, -0.5f, 0f, // (x2, y2, z2)
0f, 0.5f, 0f // (x3, y3, z3)
};
_vertexBuffer.put(coords);
_indexBuffer.put(_indicesArray);
_vertexBuffer.position(0);
_indexBuffer.position(0);
}
public static void copyBuffer(ShortBuffer dstBuffer, ShortBuffer srcBuffer)
{
if (dstBuffer != srcBuffer)
{
srcBuffer.rewind();
dstBuffer.put(srcBuffer);
}
}
private void initTriangle()
{
float[] coords =
{
-0.5f, -0.5f, 0.5f, // 0
0.5f, -0.5f, 0.5f, // 1
0f, -0.5f, -0.5f, // 2
0f, 0.5f, 0f, // 3
};
_nrOfVertices = coords.Length;
float[] colors =
{
1f, 0f, 0f, 1f, // point 0 red
0f, 1f, 0f, 1f, // point 1 green
0f, 0f, 1f, 1f, // point 2 blue
1f, 1f, 1f, 1f, // point 3 white
};
short[] indices = new short[] {
0, 1, 3, // rwg
0, 2, 1, // rbg
0, 3, 2, // rbw
1, 2, 3, // bwg
};
// float has 4 bytes, coordinate * 4 bytes
ByteBuffer vbb = ByteBuffer.allocateDirect(coords.Length * 4);
vbb.order(ByteOrder.nativeOrder());
_vertexBuffer = vbb.asFloatBuffer();
// short has 2 bytes, indices * 2 bytes
ByteBuffer ibb = ByteBuffer.allocateDirect(indices.Length * 2);
ibb.order(ByteOrder.nativeOrder());
_indexBuffer = ibb.asShortBuffer();
// float has 4 bytes, colors (RGBA) * 4 bytes
ByteBuffer cbb = ByteBuffer.allocateDirect(colors.Length * 4);
cbb.order(ByteOrder.nativeOrder());
_colorBuffer = cbb.asFloatBuffer();
_vertexBuffer.put(coords);
_indexBuffer.put(indices);
_colorBuffer.put(colors);
_vertexBuffer.position(0);
_indexBuffer.position(0);
_colorBuffer.position(0);
}
private void initTriangle()
{
// float has 4 bytes
ByteBuffer vbb = ByteBuffer.allocateDirect(_nrOfVertices * 3 * 4);
vbb.order(ByteOrder.nativeOrder());
_vertexBuffer = vbb.asFloatBuffer();
// short has 4 bytes
ByteBuffer ibb = ByteBuffer.allocateDirect(_nrOfVertices * 2);
ibb.order(ByteOrder.nativeOrder());
_indexBuffer = ibb.asShortBuffer();
// float has 4 bytes, 4 colors (RGBA) * number of vertices * 4 bytes
ByteBuffer cbb = ByteBuffer.allocateDirect(4 * _nrOfVertices * 4);
cbb.order(ByteOrder.nativeOrder());
_colorBuffer = cbb.asFloatBuffer();
float[] coords =
{
-0.5f, -0.5f, 0f, // (x1, y1, z1)
0.5f, -0.5f, 0f, // (x2, y2, z2)
0.5f, 0.5f, 0f // (x3, y3, z3)
};
float[] colors =
{
1f, 0f, 0f, 1f, // point 1
0f, 1f, 0f, 1f, // point 2
0f, 0f, 1f, 1f, // point 3
};
_vertexBuffer.put(coords);
_indexBuffer.put(_indicesArray);
_colorBuffer.put(colors);
_vertexBuffer.position(0);
_indexBuffer.position(0);
_colorBuffer.position(0);
}
public MyRenderer()
{
ByteBuffer bb = ByteBuffer.allocateDirect(mXYZCoords.Length * 4);
bb.order(ByteOrder.nativeOrder());
mVertexBuffer = bb.asFloatBuffer();
mVertexBuffer.put(mXYZCoords);
mVertexBuffer.position(0);
ByteBuffer tb = ByteBuffer.allocateDirect(mUVCoords.Length * 4);
tb.order(ByteOrder.nativeOrder());
mTextureBuffer = tb.asFloatBuffer();
mTextureBuffer.put(mUVCoords);
mTextureBuffer.position(0);
ByteBuffer dlb = ByteBuffer.allocateDirect(mVertexIndex.Length * 2);
dlb.order(ByteOrder.nativeOrder());
mDrawListBuffer = dlb.asShortBuffer();
mDrawListBuffer.put(mVertexIndex);
mDrawListBuffer.position(0);
}
public static ShortBuffer getDirectBuffer(int size, ShortBuffer buffer)
{
if (buffer == null)
{
return(buffer);
}
size = Round2(size);
if (buffer.Direct)
{
buffer.limit((size >> 1) + buffer.position());
return(buffer);
}
ShortBuffer directBuffer = allocateDirectBuffer(size).asShortBuffer();
directBuffer.put((ShortBuffer)((ShortBuffer)buffer).slice().limit(size >> 1));
directBuffer.rewind();
return(directBuffer);
}
public override void write16(int address, short data)
{
address &= addressMask;
shortBuffer.put(address >> 1, data);
}