/*
* (non-Javadoc)
*
* @see org.lwjgl.vector.Vector#load(FloatBuffer)
*/
public Vector load(FloatBuffer buf) {
x = buf.get();
y = buf.get();
z = buf.get();
w = buf.get();
return this;
}
public static void updateRenderInfo(EntityPlayer par0EntityPlayer, boolean par1) {
GL11.glGetFloat(GL11.GL_MODELVIEW_MATRIX, modelview);
GL11.glGetFloat(GL11.GL_PROJECTION_MATRIX, projection);
// Spout start
modelMatrix = modelview.duplicate();
projectionMatrix = projection.duplicate();
// Spout end
GL11.glGetInteger(GL11.GL_VIEWPORT, viewport);
float var2 = (float) ((viewport.get(0) + viewport.get(2)) / 2);
float var3 = (float) ((viewport.get(1) + viewport.get(3)) / 2);
GLU.gluUnProject(var2, var3, 0.0F, modelview, projection, viewport, objectCoords);
objectX = objectCoords.get(0);
objectY = objectCoords.get(1);
objectZ = objectCoords.get(2);
int var4 = par1 ? 1 : 0;
float var5 = par0EntityPlayer.rotationPitch;
float var6 = par0EntityPlayer.rotationYaw;
rotationX = MathHelper.cos(var6 * (float) Math.PI / 180.0F) * (float) (1 - var4 * 2);
rotationZ = MathHelper.sin(var6 * (float) Math.PI / 180.0F) * (float) (1 - var4 * 2);
rotationYZ =
-rotationZ * MathHelper.sin(var5 * (float) Math.PI / 180.0F) * (float) (1 - var4 * 2);
rotationXY =
rotationX * MathHelper.sin(var5 * (float) Math.PI / 180.0F) * (float) (1 - var4 * 2);
rotationXZ = MathHelper.cos(var5 * (float) Math.PI / 180.0F);
}
/**
* Normalizes weights if needed and finds largest amount of weights used for all vertices in the
* buffer.
*
* @param vertCount amount of vertices
* @param weightsFloatData weights for vertices
*/
private int endBoneAssigns(int vertCount, FloatBuffer weightsFloatData) {
int maxWeightsPerVert = 0;
weightsFloatData.rewind();
for (int v = 0; v < vertCount; ++v) {
float w0 = weightsFloatData.get(),
w1 = weightsFloatData.get(),
w2 = weightsFloatData.get(),
w3 = weightsFloatData.get();
if (w3 != 0) {
maxWeightsPerVert = Math.max(maxWeightsPerVert, 4);
} else if (w2 != 0) {
maxWeightsPerVert = Math.max(maxWeightsPerVert, 3);
} else if (w1 != 0) {
maxWeightsPerVert = Math.max(maxWeightsPerVert, 2);
} else if (w0 != 0) {
maxWeightsPerVert = Math.max(maxWeightsPerVert, 1);
}
float sum = w0 + w1 + w2 + w3;
if (sum != 1f && sum != 0.0f) {
weightsFloatData.position(weightsFloatData.position() - 4);
// compute new vals based on sum
float sumToB = 1f / sum;
weightsFloatData.put(w0 * sumToB);
weightsFloatData.put(w1 * sumToB);
weightsFloatData.put(w2 * sumToB);
weightsFloatData.put(w3 * sumToB);
}
}
weightsFloatData.rewind();
// mesh.setMaxNumWeights(maxWeightsPerVert);
return maxWeightsPerVert;
}
public synchronized DataPoint[] readDataPoints(int ID) throws IOException {
final Long currentOffset = dataPointsOffsets.get(ID);
final Integer numOfDataPoints = dataPointsLengths.get(ID);
if ((currentOffset == null) || (numOfDataPoints == null)) {
throw new IllegalArgumentException("Unknown storage ID " + ID);
}
final int numOfBytes = numOfDataPoints * 2 * 4;
if (buffer.capacity() < numOfBytes) {
buffer = ByteBuffer.allocate(numOfBytes * 2);
} else {
buffer.clear();
}
dataPointsFile.seek(currentOffset);
dataPointsFile.read(buffer.array(), 0, numOfBytes);
FloatBuffer floatBuffer = buffer.asFloatBuffer();
DataPoint dataPoints[] = new DataPoint[numOfDataPoints];
for (int i = 0; i < numOfDataPoints; i++) {
float mz = floatBuffer.get();
float intensity = floatBuffer.get();
dataPoints[i] = new SimpleDataPoint(mz, intensity);
}
return dataPoints;
}
public void draw() {
g.clearColor(0);
g.clear();
_myShaderTexture.beginDraw();
g.clearColor(255, 0, 0);
g.clear();
g.color(255);
CCMath.randomSeed(0);
for (int i = 0; i < 200; i++) {
g.color(CCMath.random(), CCMath.random(), CCMath.random());
g.ellipse(CCMath.random(400), CCMath.random(400), 0, 20, 20);
}
g.rect(-200, -200, 50, 50);
_myShaderTexture.endDraw();
FloatBuffer outputData0 = _myShaderTexture.getData(0);
System.err.printf("toutput0\toutput1\toutput2\toutput3\n");
for (int i = 0; i < _myShaderTexture.width() * _myShaderTexture.height() * 3; i++)
System.err.printf(
"t%.2f\t%.2f\t%.2f\n", outputData0.get(), outputData0.get(), outputData0.get());
g.color(255);
g.image(_myShaderTexture.attachment(0), 0, 0, 200, 200);
// g.texture(_myRenderBuffer);
// g.beginShape(CCDrawMode.QUADS);
// g.vertex(-200, -200, 0, 0f);
// g.vertex( 200, -200, 1, 0f);
// g.vertex( 200, 200, 1, 1);
// g.vertex(-200, 200, 0, 1);
// g.endShape();
// g.noTexture();
}
/**
* @param object1
* @param object2
* @throws Exception
*/
private void init(SurfaceTriangleList object1, SurfaceTriangleList object2) throws Exception {
// bruteforce for now
FloatBuffer ver1 = object1.getTriangleBuffer();
FloatBuffer ver2 = object2.getTriangleBuffer();
int cnt1 = object1.getChunkCount();
int cnt2 = object2.getChunkCount();
float[] t1 = new float[9];
float[] t2 = new float[9];
ver1.rewind();
ver2.rewind();
Boolean intersect = false;
Boolean coplanar = false;
float[] segment;
for (int i = 0; i < cnt1; i++) {
ver1.get(t1);
for (int j = 0; j < cnt2; j++) {
ver2.get(t2);
segment = Collision.triTriIntersect(t1, t2, coplanar, intersect);
if (coplanar) { // TODO: handle coplanearity
throw new Exception("coplanearity not yet supported");
} else if (intersect) {
tris.add(segment, true);
}
}
}
}
@Override
public boolean gluUnProject(
float winX,
float winY,
float winZ,
float[] model,
int modelOffset,
float[] project,
int projectOffset,
int[] view,
int viewOffset,
float[] obj,
int objOffset) {
modelb.clear();
modelb.put(model, modelOffset, 16);
projectb.clear();
projectb.put(project, projectOffset, 16);
viewb.clear();
viewb.put(view, viewOffset, 4);
winb.clear();
boolean result =
org.lwjgl.util.glu.GLU.gluUnProject(winX, winY, winZ, modelb, projectb, viewb, winb);
obj[objOffset] = winb.get(0);
obj[objOffset + 1] = winb.get(1);
obj[objOffset + 2] = winb.get(2);
return result;
}
private double interpolate_value(
final UnstructuredVolumeObject volume, final int index0, final int index1)
throws KVSException {
Buffer buf = volume.values();
float[] coords = volume.coords();
final float value0 = this.substitute_plane_equation(new Vector3f(coords, 3 * index0));
final float value1 = this.substitute_plane_equation(new Vector3f(coords, 3 * index1));
final float ratio = kvs.core.util.Math.abs(value0 / (value1 - value0));
if (buf instanceof ByteBuffer) {
ByteBuffer values = (ByteBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else if (buf instanceof ShortBuffer) {
ShortBuffer values = (ShortBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else if (buf instanceof IntBuffer) {
IntBuffer values = (IntBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else if (buf instanceof LongBuffer) {
LongBuffer values = (LongBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else if (buf instanceof FloatBuffer) {
FloatBuffer values = (FloatBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else if (buf instanceof DoubleBuffer) {
DoubleBuffer values = (DoubleBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else if (buf instanceof CharBuffer) {
CharBuffer values = (CharBuffer) buf;
return (values.get(index0) + ratio * (values.get(index1) - values.get(index0)));
} else {
throw new KVSException("Unsupported data type");
}
}
/**
* Load from a float buffer. The buffer stores the matrix in column major (OpenGL) order.
*
* @param buf A float buffer to read from
* @return this
*/
public Matrix load(FloatBuffer buf) {
m00 = buf.get();
m01 = buf.get();
m10 = buf.get();
m11 = buf.get();
return this;
}
public static Vec3 unproject(float winX, float winY, float winZ) {
GLU.gluUnProject(winX, winY, winZ, modelview, projection, viewport, objectCoords);
float objectX = objectCoords.get(0);
float objectY = objectCoords.get(1);
float objectZ = objectCoords.get(2);
return Vec3.createVectorHelper(objectX, objectY, objectZ);
}
/**
* Computes a <code>Box</code> that bounds a specified buffer of points. Principal axes are
* computed for the points and used to form a <code>Box</code>. This returns <code>null</code> if
* the buffer is empty or contains only a partial point.
*
* <p>The buffer must contain XYZ coordinate tuples which are either tightly packed or offset by
* the specified stride. The stride specifies the number of buffer elements between the first
* coordinate of consecutive tuples. For example, a stride of 3 specifies that each tuple is
* tightly packed as XYZXYZXYZ, whereas a stride of 5 specifies that there are two elements
* between each tuple as XYZabXYZab (the elements "a" and "b" are ignored). The stride must be at
* least 3. If the buffer's length is not evenly divisible into stride-sized tuples, this ignores
* the remaining elements that follow the last complete tuple.
*
* @param buffer the buffer containing the point coordinates for which to compute a bounding
* volume.
* @param stride the number of elements between the first coordinate of consecutive points. If
* stride is 3, this interprets the buffer has having tightly packed XYZ coordinate tuples.
* @return the bounding volume, with axes lengths consistent with the conventions described in the
* <code>Box</code> class overview.
* @throws IllegalArgumentException if the buffer is null or empty, or if the stride is less than
* three.
*/
public static Box computeBoundingBox(FloatBuffer buffer, int stride) {
if (buffer == null) {
String msg = Logging.getMessage("nullValue.BufferIsNull");
Logging.error(msg);
throw new IllegalArgumentException(msg);
}
if (stride < 3) {
String msg = Logging.getMessage("generic.StrideIsInvalid", stride);
Logging.error(msg);
throw new IllegalArgumentException(msg);
}
Vec4[] axes = WWMath.computePrincipalAxes(buffer, stride);
if (axes == null) {
String msg = Logging.getMessage("generic.BufferIsEmpty");
Logging.error(msg);
throw new IllegalArgumentException(msg);
}
Vec4 r = axes[0];
Vec4 s = axes[1];
Vec4 t = axes[2];
// Find the extremes along each axis.
double minDotR = Double.MAX_VALUE;
double maxDotR = -minDotR;
double minDotS = Double.MAX_VALUE;
double maxDotS = -minDotS;
double minDotT = Double.MAX_VALUE;
double maxDotT = -minDotT;
for (int i = buffer.position(); i <= buffer.limit() - stride; i += stride) {
double x = buffer.get(i);
double y = buffer.get(i + 1);
double z = buffer.get(i + 2);
double pdr = x * r.x + y * r.y + z * r.z;
if (pdr < minDotR) minDotR = pdr;
if (pdr > maxDotR) maxDotR = pdr;
double pds = x * s.x + y * s.y + z * s.z;
if (pds < minDotS) minDotS = pds;
if (pds > maxDotS) maxDotS = pds;
double pdt = x * t.x + y * t.y + z * t.z;
if (pdt < minDotT) minDotT = pdt;
if (pdt > maxDotT) maxDotT = pdt;
}
if (maxDotR == minDotR) maxDotR = minDotR + 1;
if (maxDotS == minDotS) maxDotS = minDotS + 1;
if (maxDotT == minDotT) maxDotT = minDotT + 1;
return new Box(axes, minDotR, maxDotR, minDotS, maxDotS, minDotT, maxDotT);
}
/** GL_DrawParticles */
void GL_DrawParticles(int num_particles) {
float origin_x, origin_y, origin_z;
Math3D.VectorScale(vup, 1.5f, up);
Math3D.VectorScale(vright, 1.5f, right);
GL_Bind(r_particletexture.texnum);
GL11.glDepthMask(false); // no z buffering
GL11.glEnable(GL11.GL_BLEND);
GL_TexEnv(GL11.GL_MODULATE);
GL11.glBegin(GL11.GL_TRIANGLES);
FloatBuffer sourceVertices = particle_t.vertexArray;
IntBuffer sourceColors = particle_t.colorArray;
float scale;
int color;
for (int j = 0, i = 0; i < num_particles; i++) {
origin_x = sourceVertices.get(j++);
origin_y = sourceVertices.get(j++);
origin_z = sourceVertices.get(j++);
// hack a scale up to keep particles from disapearing
scale =
(origin_x - r_origin[0]) * vpn[0]
+ (origin_y - r_origin[1]) * vpn[1]
+ (origin_z - r_origin[2]) * vpn[2];
scale = (scale < 20) ? 1 : 1 + scale * 0.004f;
color = sourceColors.get(i);
GL11.glColor4ub(
(byte) ((color) & 0xFF),
(byte) ((color >> 8) & 0xFF),
(byte) ((color >> 16) & 0xFF),
(byte) ((color >>> 24)));
// first vertex
GL11.glTexCoord2f(0.0625f, 0.0625f);
GL11.glVertex3f(origin_x, origin_y, origin_z);
// second vertex
GL11.glTexCoord2f(1.0625f, 0.0625f);
GL11.glVertex3f(origin_x + up[0] * scale, origin_y + up[1] * scale, origin_z + up[2] * scale);
// third vertex
GL11.glTexCoord2f(0.0625f, 1.0625f);
GL11.glVertex3f(
origin_x + right[0] * scale, origin_y + right[1] * scale, origin_z + right[2] * scale);
}
GL11.glEnd();
GL11.glDisable(GL11.GL_BLEND);
GL11.glColor4f(1, 1, 1, 1);
GL11.glDepthMask(true); // back to normal Z buffering
GL_TexEnv(GL11.GL_REPLACE);
}
public static void generate(TriMesh mesh) {
FloatBuffer tangents = BufferUtils.createFloatBuffer(mesh.getVertexCount() * 3);
FloatBuffer binormals = BufferUtils.createFloatBuffer(mesh.getVertexCount() * 3);
IntBuffer indexBuffer = mesh.getIndexBuffer();
FloatBuffer vertexBuffer = mesh.getVertexBuffer();
FloatBuffer textureBuffer = mesh.getTextureCoords(0).coords;
indexBuffer.rewind();
Vector3f tangent = new Vector3f();
Vector3f binormal = new Vector3f();
Vector3f normal = new Vector3f();
Vector3f verts[] = new Vector3f[3];
Vector2f texcoords[] = new Vector2f[3];
for (int i = 0; i < 3; i++) {
verts[i] = new Vector3f();
texcoords[i] = new Vector2f();
}
for (int t = 0; t < indexBuffer.capacity() / 3; t++) {
int index[] = new int[3];
for (int v = 0; v < 3; v++) {
index[v] = indexBuffer.get();
verts[v].x = vertexBuffer.get(index[v] * 3);
verts[v].y = vertexBuffer.get(index[v] * 3 + 1);
verts[v].z = vertexBuffer.get(index[v] * 3 + 2);
texcoords[v].x = textureBuffer.get(index[v] * 2);
texcoords[v].y = textureBuffer.get(index[v] * 2 + 1);
}
computeTriangleTangentSpace(tangent, binormal, normal, verts, texcoords);
for (int v = 0; v < 3; v++) {
tangents.position(index[v] * 3);
tangents.put(tangent.x);
tangents.put(tangent.y);
tangents.put(tangent.z);
binormals.position(index[v] * 3);
binormals.put(binormal.x);
binormals.put(binormal.y);
binormals.put(binormal.z);
}
}
mesh.setTangentBuffer(tangents);
mesh.setBinormalBuffer(binormals);
}
/**
* Sets the x, y, and z components of this vector to the values supplied by the <code>source
* </code> buffer.
*
* @param source The buffer which supplies the values of this vector. The values are expected to
* be stored in XYZ order.
* @throws IllegalArgumentException If the <code>source</code> buffer does not have enough
* elements remaining for all components of this vector.
*/
public final void setComponents(final FloatBuffer source) {
// Make sure the source contains enough components:
if (source.remaining() < Vector3d.COMPONENT_COUNT) {
throw new IllegalArgumentException(
"The specified source buffer does not contain enough components.");
}
// The components are stored in XYZ order.
this.x = source.get();
this.y = source.get();
this.z = source.get();
}
public static float[] getAmountTranslated() {
float translated[] = new float[3];
FloatBuffer buffer = BufferUtils.createFloatBuffer(4 * 4);
GL11.glGetFloat(GL11.GL_MODELVIEW_MATRIX, buffer);
translated[0] = buffer.get(0 + 3 * 4);
translated[1] = buffer.get(1 + 3 * 4);
translated[2] = buffer.get(2 + 3 * 4);
return translated;
}
public void byte2float(byte[] src, int index_src, float[] dst, int index_dst, int len) {
if (len > (BUFFER_SIZE / 4)) {
FloatBuffer buffer = ByteBuffer.wrap(src, index_src, len * 4).order(order).asFloatBuffer();
buffer.get(dst, index_dst, len);
} else {
byteBuffer.clear();
byteBuffer.put(src, index_src, len * 4);
floatBuffer.position(0).limit(len);
floatBuffer.get(dst, index_dst, len);
}
}
/**
* Initializes this quaternion from a 4x4 column rotation matrix
*
* <p>See <a href="ftp://ftp.cis.upenn.edu/pub/graphics/shoemake/quatut.ps.Z">Graphics Gems
* Code</a>,<br>
* <a href="http://mathworld.wolfram.com/MatrixTrace.html">MatrixTrace</a>.
*
* <p>Buggy <a
* href="http://web.archive.org/web/20041029003853/http://www.j3d.org/matrix_faq/matrfaq_latest.html#Q55">Matrix-FAQ
* Q55</a>
*
* @param m 4x4 column matrix
* @return this quaternion for chaining.
* @see #toMatrix(FloatBuffer)
*/
public final Quaternion setFromMatrix(final FloatBuffer m) {
final int m_off = m.position();
return setFromMatrix(
m.get(0 + 0 * 4 + m_off),
m.get(0 + 1 * 4 + m_off),
m.get(0 + 2 * 4 + m_off),
m.get(1 + 0 * 4 + m_off),
m.get(1 + 1 * 4 + m_off),
m.get(1 + 2 * 4 + m_off),
m.get(2 + 0 * 4 + m_off),
m.get(2 + 1 * 4 + m_off),
m.get(2 + 2 * 4 + m_off));
}
public static float[] getAmountScaled() {
float scaled[] = new float[3];
FloatBuffer buffer = BufferUtils.createFloatBuffer(4 * 4);
GL11.glGetFloat(GL11.GL_MODELVIEW_MATRIX, buffer);
scaled[0] = buffer.get(0);
scaled[1] = buffer.get(1 + 1 * 4);
scaled[2] = buffer.get(2 + 2 * 4);
return scaled;
}
private void doTransforms(
FloatBuffer bindBufPos,
FloatBuffer bindBufNorm,
FloatBuffer bufPos,
FloatBuffer bufNorm,
int start,
int end,
Matrix4f transform) {
TempVars vars = TempVars.get();
Vector3f pos = vars.vect1;
Vector3f norm = vars.vect2;
int length = (end - start) * 3;
// offset is given in element units
// convert to be in component units
int offset = start * 3;
bindBufPos.rewind();
bindBufNorm.rewind();
// bufPos.position(offset);
// bufNorm.position(offset);
bindBufPos.get(tmpFloat, 0, length);
bindBufNorm.get(tmpFloatN, 0, length);
int index = 0;
while (index < length) {
pos.x = tmpFloat[index];
norm.x = tmpFloatN[index++];
pos.y = tmpFloat[index];
norm.y = tmpFloatN[index++];
pos.z = tmpFloat[index];
norm.z = tmpFloatN[index];
transform.mult(pos, pos);
transform.multNormal(norm, norm);
index -= 2;
tmpFloat[index] = pos.x;
tmpFloatN[index++] = norm.x;
tmpFloat[index] = pos.y;
tmpFloatN[index++] = norm.y;
tmpFloat[index] = pos.z;
tmpFloatN[index++] = norm.z;
}
vars.release();
bufPos.position(offset);
// using bulk put as it's faster
bufPos.put(tmpFloat, 0, length);
bufNorm.position(offset);
// using bulk put as it's faster
bufNorm.put(tmpFloatN, 0, length);
}
@SubscribeEvent
@SideOnly(Side.CLIENT)
public void renderLast(RenderWorldLastEvent evt) {
// TODO: while the urbanist is deactivated, this code can be dormant.
// it happens to be very expensive at run time, so we need some way
// to operate it only when relevant (e.g. in the cycle following a
// click request).
if (NONRELEASED_BLOCKS) {
return;
}
/**
* Note (SpaceToad): Why on earth this thing eventually worked out is a mystery to me. In
* particular, all the examples I got computed y in a different way. Anyone with further OpenGL
* understanding would be welcome to explain.
*
* <p>Anyway, the purpose of this code is to store the block position pointed by the mouse at
* each frame, relative to the entity that has the camera.
*
* <p>It got heavily inspire from the two following sources:
* http://nehe.gamedev.net/article/using_gluunproject/16013/ #ActiveRenderInfo.updateRenderInfo.
*
* <p>See EntityUrbanist#rayTraceMouse for a usage example.
*/
if (modelviewF == null) {
modelviewF = GLAllocation.createDirectFloatBuffer(16);
projectionF = GLAllocation.createDirectFloatBuffer(16);
viewport = GLAllocation.createDirectIntBuffer(16);
}
GL11.glGetFloat(GL11.GL_MODELVIEW_MATRIX, modelviewF);
GL11.glGetFloat(GL11.GL_PROJECTION_MATRIX, projectionF);
GL11.glGetInteger(GL11.GL_VIEWPORT, viewport);
float f = (viewport.get(0) + viewport.get(2)) / 2;
float f1 = (viewport.get(1) + viewport.get(3)) / 2;
float x = Mouse.getX();
float y = Mouse.getY();
// TODO: Minecraft seems to instist to have this winZ re-created at
// each frame - looks like a memory leak to me but I couldn't use a
// static variable instead, as for the rest.
FloatBuffer winZ = GLAllocation.createDirectFloatBuffer(1);
GL11.glReadPixels((int) x, (int) y, 1, 1, GL11.GL_DEPTH_COMPONENT, GL11.GL_FLOAT, winZ);
GLU.gluUnProject(x, y, winZ.get(), modelviewF, projectionF, viewport, pos);
diffX = pos.get(0);
diffY = pos.get(1);
diffZ = pos.get(2);
}
/**
* Gets all x,y coordinates, that have the lowest z-value, therefore making an appropriate measure
* for a 3D->2D conversion
*
* @param verticesBuffer the vertices buffer
* @return the coordinates
*/
private List<Vector2f> getCoordinates(FloatBuffer verticesBuffer) {
// get Coordinates into an array
float[] vertices = new float[verticesBuffer.capacity()];
for (int i = 0; i < verticesBuffer.capacity(); i++) {
vertices[i] = verticesBuffer.get(i);
}
// read closest points based on their z-value
// find smallest z-value
float z = Float.MAX_VALUE;
for (int i = 2; i < vertices.length; i += 3) {
if (vertices[i] < z) {
z = vertices[i];
}
}
// add all points with a z-value that are equals
Vector2f vertex;
List<Vector2f> finalList = new ArrayList<Vector2f>();
for (int i = 2; i < vertices.length; i += 9) {
if (vertices[i] == z) {
vertex = new Vector2f();
vertex.x = vertices[i - 2];
vertex.y = vertices[i - 1];
finalList.add(vertex);
}
}
return finalList;
}
void ParametricEval(
final float u,
final float v,
final int offsetP,
final FloatBuffer p,
final int offsetN,
final FloatBuffer N) {
final float theta = (float) Math.PI * u, phi = (float) (2.0 * Math.PI * v);
P.put(offsetP + 0, (float) (Math.sin(theta) * Math.sin(phi)));
P.put(offsetP + 1, (float) (Math.sin(theta) * Math.cos(phi)));
P.put(offsetP + 2, (float) Math.cos(theta));
N.put(offsetN + 0, P.get(offsetP + 0));
N.put(offsetN + 1, P.get(offsetP + 1));
N.put(offsetN + 2, P.get(offsetP + 2));
}
@Override
public void filter(FloatBuffer[] _in, long[] inPos, FloatBuffer[] out) {
if (_in.length != 1) {
throw new IllegalArgumentException("Channel split invoked on more then one input");
}
if (out.length != format.getChannels()) {
throw new IllegalArgumentException(
"Channel split must be supplied with "
+ format.getChannels()
+ " output buffers to hold the channels.");
}
FloatBuffer in0 = _in[0];
int outSampleCount = in0.remaining() / out.length;
for (int i = 0; i < out.length; i++) {
if (out[i].remaining() < outSampleCount)
throw new IllegalArgumentException(
"Supplied buffer for "
+ i
+ "th channel doesn't have sufficient space to put the samples ( required: "
+ outSampleCount
+ ", actual: "
+ out[i].remaining()
+ ")");
}
while (in0.remaining() >= format.getChannels()) {
for (int i = 0; i < out.length; i++) {
out[i].put(in0.get());
}
}
}
public static void main(String args[]) throws Exception {
FloatBuffer buffer = FloatBuffer.allocate(10);
for (int i = 0; i < buffer.capacity(); ++i) {
float f = (float) Math.sin((((float) i) / 10) * (2 * Math.PI));
buffer.put(f);
}
/** flip()源码： */
// public final Buffer flip() {
// limit = position;
// position = 0;
// mark = -1;
// return this;
// }
/**
* 反转缓冲区。首先将限制设置为当前位置，然后将位置设置为 0。 如果已定义了标记，则丢弃该标记。 常与compact方法一起使用。 通常情况下，在准备从缓冲区中读取数据时调用flip方法。
*/
buffer.flip();
while (buffer.hasRemaining()) {
float f = buffer.get();
System.out.println(f);
}
}
/**
* Receive as many items as possible from the given byte buffer to this buffer.
*
* <p>The <TT>receiveItems()</TT> method must not block the calling thread; if it does, all
* message I/O in MP will be blocked.
*
* @param i Index of first item to receive, in the range 0 .. <TT>length</TT>-1.
* @param num Maximum number of items to receive.
* @param buffer Byte buffer.
* @return Number of items received.
*/
protected int receiveItems(int i, int num, ByteBuffer buffer) {
FloatBuffer floatbuffer = buffer.asFloatBuffer();
int n = 0;
int r = i / myColCount;
int row = r + myLowerRow;
int c = i % myColCount;
int col = c + myLowerCol;
int ncols = Math.min(myColCount - c, floatbuffer.remaining());
while (r < myRowCount && ncols > 0) {
float[] myMatrix_row = myMatrix[row];
while (c < ncols) {
myMatrix_row[col] = myOp.op(myMatrix_row[col], floatbuffer.get());
++c;
++col;
}
n += ncols;
++r;
++row;
c = 0;
col = myLowerCol;
ncols = Math.min(myColCount, floatbuffer.remaining());
}
buffer.position(buffer.position() + 4 * n);
return n;
}
/** Ensures that the specified FloatBuffer is null-terminated. */
public static FloatBuffer checkNT(FloatBuffer buf) {
checkBuffer(buf, 1);
if (buf.get(buf.limit() - 1) != 0.0f)
throw new IllegalArgumentException("Missing null termination");
return buf;
}
public static void main(String[] args) {
ByteBuffer bb = ByteBuffer.wrap(new byte[] {0, 0, 0, 0, 0, 0, 0, 'a'});
bb.rewind();
printnb("Byte Buffer ");
while (bb.hasRemaining()) printnb(bb.position() + " -> " + bb.get() + ", ");
print();
CharBuffer cb = ((ByteBuffer) bb.rewind()).asCharBuffer();
printnb("Char Buffer ");
while (cb.hasRemaining()) printnb(cb.position() + " -> " + cb.get() + ", ");
print();
FloatBuffer fb = ((ByteBuffer) bb.rewind()).asFloatBuffer();
printnb("Float Buffer ");
while (fb.hasRemaining()) printnb(fb.position() + " -> " + fb.get() + ", ");
print();
IntBuffer ib = ((ByteBuffer) bb.rewind()).asIntBuffer();
printnb("Int Buffer ");
while (ib.hasRemaining()) printnb(ib.position() + " -> " + ib.get() + ", ");
print();
LongBuffer lb = ((ByteBuffer) bb.rewind()).asLongBuffer();
printnb("Long Buffer ");
while (lb.hasRemaining()) printnb(lb.position() + " -> " + lb.get() + ", ");
print();
ShortBuffer sb = ((ByteBuffer) bb.rewind()).asShortBuffer();
printnb("Short Buffer ");
while (sb.hasRemaining()) printnb(sb.position() + " -> " + sb.get() + ", ");
print();
DoubleBuffer db = ((ByteBuffer) bb.rewind()).asDoubleBuffer();
printnb("Double Buffer ");
while (db.hasRemaining()) printnb(db.position() + " -> " + db.get() + ", ");
}
public static void main(String[] args) {
Mat pFrame = imread("image0.png", CV_LOAD_IMAGE_GRAYSCALE);
Mat cFrame = imread("image1.png", CV_LOAD_IMAGE_GRAYSCALE);
Mat pGray = new Mat();
Mat cGray = new Mat();
pFrame.convertTo(pGray, CV_32FC1);
cFrame.convertTo(cGray, CV_32FC1);
Mat Optical_Flow = new Mat();
DenseOpticalFlow tvl1 = createOptFlow_DualTVL1();
tvl1.calc(pGray, cGray, Optical_Flow);
Mat OF = new Mat(pGray.rows(), pGray.cols(), CV_32FC1);
FloatBuffer in = Optical_Flow.getFloatBuffer();
FloatBuffer out = OF.getFloatBuffer();
int height = pGray.rows();
int width = pGray.cols();
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
float xVelocity = in.get();
float yVelocity = in.get();
float pixelVelocity = (float) Math.sqrt(xVelocity * xVelocity + yVelocity * yVelocity);
out.put(pixelVelocity);
}
}
imwrite("OF.png", OF);
}
/*
* Reads FLOAT image data organized as separate image planes.
*
*/
public float[][] readPlanarFloat32(
int width,
int height,
int samplesPerPixel,
long[] stripOffsets,
long[] stripCounts,
long rowsPerStrip)
throws IOException {
float[][] data = new float[samplesPerPixel][width * height];
int band = 0;
int numRows = 0;
ByteBuffer buff = ByteBuffer.allocateDirect(width * height * FLOAT_SIZEOF);
buff.order(this.getByteOrder());
for (int i = 0; i < stripOffsets.length; i++) {
this.theChannel.position(stripOffsets[i]);
int len = (int) stripCounts[i];
if ((buff.position() + len) >= data[band].length * FLOAT_SIZEOF)
len = data[band].length * FLOAT_SIZEOF - buff.position();
buff.limit(buff.position() + len);
this.theChannel.read(buff);
numRows += rowsPerStrip;
if (numRows >= height) {
buff.flip();
FloatBuffer fbuff = buff.asFloatBuffer();
fbuff.get(data[band]);
buff.clear();
++band;
numRows = 0;
}
}
return data;
}
/**
* Create a data buffer from the given length
*
* @param buffer
* @param length
*/
public BaseDataBuffer(ByteBuffer buffer, int length) {
allocationMode = Nd4j.alloc;
this.length = length;
buffer.order(ByteOrder.nativeOrder());
if (allocationMode() == AllocationMode.DIRECT) {
this.wrappedBuffer = buffer;
} else if (dataType() == Type.INT) {
intData = new int[length];
IntBuffer intBuffer = buffer.asIntBuffer();
for (int i = 0; i < length; i++) {
intData[i] = intBuffer.get(i);
}
} else if (dataType() == Type.DOUBLE) {
doubleData = new double[length];
DoubleBuffer doubleBuffer = buffer.asDoubleBuffer();
for (int i = 0; i < length; i++) {
doubleData[i] = doubleBuffer.get(i);
}
} else if (dataType() == Type.FLOAT) {
floatData = new float[length];
FloatBuffer floatBuffer = buffer.asFloatBuffer();
for (int i = 0; i < length; i++) {
floatData[i] = floatBuffer.get(i);
}
}
}
