/** x, y, z, fov, aspectRatio, zNear, zFar */
public Camera(long window, Vec3 position, float fov, float aspectRatio, float zNear, float zFar) {
this.window = window;
this.position = position;
this.fov = fov;
this.zNear = zNear;
this.zFar = zFar;
float sine, cotangent, deltaZ;
float radians = fov / 2 * (float) Math.PI / 180;
deltaZ = zFar - zNear;
sine = (float) Math.sin(radians);
if ((deltaZ == 0) || (sine == 0) || (aspectRatio == 0)) {
return;
}
cotangent = (float) Math.cos(radians) / sine;
matrix = BufferUtils.createFloatBuffer(16);
int oldPos = matrix.position();
matrix.put(IDENTITY_MATRIX);
matrix.position(oldPos);
matrix.put(0 * 4 + 0, cotangent / aspectRatio);
matrix.put(1 * 4 + 1, cotangent);
matrix.put(2 * 4 + 2, -(zFar + zNear) / deltaZ);
matrix.put(2 * 4 + 3, -1);
matrix.put(3 * 4 + 2, -2 * zNear * zFar / deltaZ);
matrix.put(3 * 4 + 3, 0);
}
/**
* Creates the buffers we use to store information about the 3D world. OpenGL doesn't use Java
* arrays, but rather needs data in a format it can understand. Hence we use ByteBuffers.
*
* @param config The EGL configuration used when creating the surface.
*/
@Override
public void onSurfaceCreated(EGLConfig config) {
Log.i(TAG, "In onSurfaceCreated");
GLES20.glClearColor(0.1f, 0.1f, 0.1f, 0.5f); // Dark background so camera stuff show up.
ByteBuffer bb = ByteBuffer.allocateDirect(squareVertices.length * 4);
bb.order(ByteOrder.nativeOrder());
vertexBuffer = bb.asFloatBuffer();
vertexBuffer.put(squareVertices);
vertexBuffer.position(0);
ByteBuffer dlb = ByteBuffer.allocateDirect(drawOrder.length * 2);
dlb.order(ByteOrder.nativeOrder());
drawListBuffer = dlb.asShortBuffer();
drawListBuffer.put(drawOrder);
drawListBuffer.position(0);
ByteBuffer bb2 = ByteBuffer.allocateDirect(textureVertices.length * 4);
bb2.order(ByteOrder.nativeOrder());
textureVerticesBuffer = bb2.asFloatBuffer();
textureVerticesBuffer.put(textureVertices);
textureVerticesBuffer.position(0);
int vertexShader = loadGLShader(GLES20.GL_VERTEX_SHADER, vertexShaderCode);
int fragmentShader = loadGLShader(GLES20.GL_FRAGMENT_SHADER, fragmentShaderCode);
mProgram = GLES20.glCreateProgram(); // create empty OpenGL ES Program
GLES20.glAttachShader(mProgram, vertexShader); // add the vertex shader to program
GLES20.glAttachShader(mProgram, fragmentShader); // add the fragment shader to program
GLES20.glLinkProgram(mProgram);
// Create a texture and start mirroring the camera on the texture:
texture = createTexture();
startCamera(texture);
}
private void newVertexBufferToDraw() {
// (number of points) * (number of coordinate values) * 4 bytes per float)
ByteBuffer bb = ByteBuffer.allocateDirect(verticesCoords.size() * COORDS_PER_VERTEX * 4);
// use the device hardware's native byte order
bb.order(ByteOrder.nativeOrder());
// create a floating point buffer from the ByteBuffer
vertexBuffer = bb.asFloatBuffer();
// add the coordinates to the FloatBuffer
vertexBuffer.put(Utils.pointVectorToArray(verticesCoords));
// set the buffer to read the first coordinate
vertexBuffer.position(0);
vertexCount = verticesCoords.size();
// Log.d(GAlg.DEBUG_TAG, "Scene coords to draw: " + verticesCoords.toString());
GLES20.glBufferSubData(GLES20.GL_ARRAY_BUFFER, 0, vertexCount, vertexBuffer);
if (drawLines) {
bb = ByteBuffer.allocateDirect(linesCoords.size() * COORDS_PER_VERTEX * 4);
bb.order(ByteOrder.nativeOrder());
linesVertexBuffer = bb.asFloatBuffer();
linesVertexBuffer.put(Utils.pointVectorToArray(linesCoords));
linesVertexBuffer.position(0);
linesVertexCount = linesCoords.size();
Log.d(GAlg.DEBUG_TAG, "Drawing lines between: " + linesCoords.toString());
GLES20.glBufferSubData(GLES20.GL_ARRAY_BUFFER, 0, linesVertexCount, linesVertexBuffer);
}
}
// 初始化顶点坐标与着色数据的方法
public void initVertexData() {
// 顶点坐标数据的初始化================begin============================
vCount = 6; // 每个格子两个三角形，每个三角形3个顶点
float vertices[] = {
-width / 2, height / 2, 0,
-width / 2, -height / 2, 0,
width / 2, height / 2, 0,
-width / 2, -height / 2, 0,
width / 2, -height / 2, 0,
width / 2, height / 2, 0
};
// 创建顶点坐标数据缓冲
// vertices.length*4是因为一个整数四个字节
ByteBuffer vbb = ByteBuffer.allocateDirect(vertices.length * 4);
vbb.order(ByteOrder.nativeOrder()); // 设置字节顺序
mVertexBuffer = vbb.asFloatBuffer(); // 转换为int型缓冲
mVertexBuffer.put(vertices); // 向缓冲区中放入顶点坐标数据
mVertexBuffer.position(0); // 设置缓冲区起始位置
float textures[] = {0f, 0f, 0f, 1, 1, 0f, 0f, 1, 1, 1, 1, 0f};
// 创建顶点纹理数据缓冲
ByteBuffer tbb = ByteBuffer.allocateDirect(textures.length * 4);
tbb.order(ByteOrder.nativeOrder()); // 设置字节顺序
mTextureBuffer = tbb.asFloatBuffer(); // 转换为Float型缓冲
mTextureBuffer.put(textures); // 向缓冲区中放入顶点着色数据
mTextureBuffer.position(0); // 设置缓冲区起始位置
// 特别提示：由于不同平台字节顺序不同数据单元不是字节的一定要经过ByteBuffer
// 转换，关键是要通过ByteOrder设置nativeOrder()，否则有可能会出问题
// 顶点纹理数据的初始化================end============================
}
/**
* Method for painting any given object. Data must be 7 floats per face – we render one triangle
* consisting of 3 vertices with each vertice having an rgba color float value.
*
* @param data The vertice data containing coordinates and colors to draw.
*/
private void drawObject(final FloatBuffer data) {
// Pass in the position information
data.position(mPositionOffset);
GLES20.glVertexAttribPointer(
mPositionHandle, mPositionDataSize, GLES20.GL_FLOAT, false, mStrideBytes, data);
GLES20.glEnableVertexAttribArray(mPositionHandle);
// Pass in the color information
data.position(mColorOffset);
GLES20.glVertexAttribPointer(
mColorHandle, mColorDataSize, GLES20.GL_FLOAT, false, mStrideBytes, data);
GLES20.glEnableVertexAttribArray(mColorHandle);
// This multiplies the view matrix by the model matrix, and stores the result in the MVP matrix
// (which currently contains model * view).
Matrix.multiplyMM(mMVPMatrix, 0, mViewMatrix, 0, mModelMatrix, 0);
// This multiplies the modelview matrix by the projection matrix, and stores the result in the
// MVP matrix
// (which now contains model * view * projection).
Matrix.multiplyMM(mMVPMatrix, 0, mProjectionMatrix, 0, mMVPMatrix, 0);
GLES20.glUniformMatrix4fv(mMVPMatrixHandle, 1, false, mMVPMatrix, 0);
// The (1+data.capacity() / 8) tells us how many vertices we need to
// draw
GLES20.glDrawArrays(GLES20.GL_TRIANGLES, 0, (1 + data.capacity() / 8));
}
public MyRenderer(Context ctx) {
super(ctx);
parser = new OBJParser(ctx);
model = parser.parseOBJ("/sdcard/windmill.obj");
Debug.stopMethodTracing();
this.setRenderer(this);
this.requestFocus();
this.setFocusableInTouchMode(true);
ByteBuffer byteBuf = ByteBuffer.allocateDirect(lightAmbient.length * 4);
byteBuf.order(ByteOrder.nativeOrder());
lightAmbientBuffer = byteBuf.asFloatBuffer();
lightAmbientBuffer.put(lightAmbient);
lightAmbientBuffer.position(0);
byteBuf = ByteBuffer.allocateDirect(lightDiffuse.length * 4);
byteBuf.order(ByteOrder.nativeOrder());
lightDiffuseBuffer = byteBuf.asFloatBuffer();
lightDiffuseBuffer.put(lightDiffuse);
lightDiffuseBuffer.position(0);
byteBuf = ByteBuffer.allocateDirect(lightPosition.length * 4);
byteBuf.order(ByteOrder.nativeOrder());
lightPositionBuffer = byteBuf.asFloatBuffer();
lightPositionBuffer.put(lightPosition);
lightPositionBuffer.position(0);
}
public void onDraw(
final int textureId, final FloatBuffer cubeBuffer, final FloatBuffer textureBuffer) {
GLES20.glUseProgram(mGLProgId);
runPendingOnDrawTasks();
if (!mIsInitialized) {
return;
}
cubeBuffer.position(0);
GLES20.glVertexAttribPointer(mGLAttribPosition, 2, GLES20.GL_FLOAT, false, 0, cubeBuffer);
GLES20.glEnableVertexAttribArray(mGLAttribPosition);
textureBuffer.position(0);
GLES20.glVertexAttribPointer(
mGLAttribTextureCoordinate, 2, GLES20.GL_FLOAT, false, 0, textureBuffer);
GLES20.glEnableVertexAttribArray(mGLAttribTextureCoordinate);
if (textureId != OpenGlUtils.NO_TEXTURE) {
GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureId);
GLES20.glUniform1i(mGLUniformTexture, 0);
}
onDrawArraysPre();
GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);
GLES20.glDisableVertexAttribArray(mGLAttribPosition);
GLES20.glDisableVertexAttribArray(mGLAttribTextureCoordinate);
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0);
}
public void draw(final int mShader) {
// Bind Texture VBO
GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, getTexVBO());
// Pass in texture map position
mTexVertBuffer.position(0);
final int mTextureCoordinateHandle = GLES20.glGetAttribLocation(mShader, "a_TexCoord");
GLES20.glVertexAttribPointer(
mTextureCoordinateHandle, mPositionDataSize, GLES20.GL_FLOAT, false, 0, 0);
GLES20.glEnableVertexAttribArray(mTextureCoordinateHandle);
// Bind VBO
GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, getPlaneVBO());
// Pass in the position information
mPlaneVertBuffer.position(0);
final int mPositionHandle = GLES20.glGetAttribLocation(mShader, "a_Position");
GLES20.glVertexAttribPointer(mPositionHandle, mPositionDataSize, GLES20.GL_FLOAT, false, 0, 0);
GLES20.glEnableVertexAttribArray(mPositionHandle);
// Pass in the color information
final int mColorHandle = GLES20.glGetUniformLocation(mShader, "u_Color");
GLES20.glUniform4f(mColorHandle, 0, 1, 1, 1);
GLES20.glDrawArrays(GLES20.GL_TRIANGLES, 0, indexCount);
// Unbind buffers
GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, 0);
GLES20.glBindBuffer(GLES20.GL_ELEMENT_ARRAY_BUFFER, 0);
}
@Override
public void render() {
GL10 gl = Gdx.graphics.getGL10();
gl.glViewport(0, 0, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
gl.glClearColor(0.7f, 0.7f, 0.7f, 1);
gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
gl.glRotatef(angle, 0, 0, 1);
angle += angleIncrement;
gl.glEnable(GL10.GL_TEXTURE_2D);
gl.glEnableClientState(GL10.GL_COLOR_ARRAY);
vertices.position(0);
gl.glColorPointer(4, GL10.GL_FLOAT, BYTES_PER_VERTEX, vertices);
gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
gl.glClientActiveTexture(GL10.GL_TEXTURE0);
gl.glActiveTexture(GL10.GL_TEXTURE0);
tex.bind();
vertices.position(4);
gl.glTexCoordPointer(2, GL10.GL_FLOAT, BYTES_PER_VERTEX, vertices);
gl.glClientActiveTexture(GL10.GL_TEXTURE1);
gl.glActiveTexture(GL10.GL_TEXTURE1);
tex2.bind();
vertices.position(6);
gl.glTexCoordPointer(2, GL10.GL_FLOAT, BYTES_PER_VERTEX, vertices);
gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
vertices.position(8);
gl.glVertexPointer(3, GL10.GL_FLOAT, BYTES_PER_VERTEX, vertices);
gl.glDrawArrays(GL10.GL_TRIANGLES, 0, 3);
}
/**
* 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;
}
/**
* For use with pre-converted data. This is 50x faster than {@link #put(float[])}, and 500x faster
* than {@link FloatBuffer#put(float[])}, so if you've got float[] data that won't change, {@link
* #convert(float...)} it to an int[] once and use this method to put it in the buffer
*
* @param data floats that have been converted with {@link Float#floatToIntBits(float)}
*/
public void put(final int[] data) {
final ByteBuffer byteBuffer = this.mByteBuffer;
byteBuffer.position(byteBuffer.position() + BYTES_PER_FLOAT * data.length);
final FloatBuffer floatBuffer = this.mFloatBuffer;
floatBuffer.position(floatBuffer.position() + data.length);
this.mIntBuffer.put(data, 0, data.length);
}
// 初始化坐标数据的方法
public void initVertexData(float R, float angle_span, float height) {
List<Float> tempList = new ArrayList<Float>();
// 将交通锥的上侧顶点添加到List集合中
tempList.add(0f);
tempList.add(height);
tempList.add(0f);
for (float vAngle = 0; vAngle <= 360; vAngle = vAngle + angle_span) {
float x = (float) (R * Math.cos(Math.toRadians(vAngle)));
float y = -height;
float z = (float) (-R * Math.sin(Math.toRadians(vAngle)));
tempList.add(x);
tempList.add(y);
tempList.add(z);
}
vCount = tempList.size() / 3; // 顶点数量
float[] vertex = new float[tempList.size()];
for (int i = 0; i < tempList.size(); i++) {
vertex[i] = tempList.get(i);
}
ByteBuffer vbb = ByteBuffer.allocateDirect(vertex.length * 4);
vbb.order(ByteOrder.nativeOrder());
mVertexBuffer = vbb.asFloatBuffer();
mVertexBuffer.put(vertex);
mVertexBuffer.position(0);
float[] texcoor = generateTexCoor((int) (360 / angle_span + 1), 1, 1);
ByteBuffer tbb = ByteBuffer.allocateDirect(texcoor.length * 4);
tbb.order(ByteOrder.nativeOrder());
mTexCoorBuffer = tbb.asFloatBuffer();
mTexCoorBuffer.put(texcoor);
mTexCoorBuffer.position(0);
}
private void init(BobView view, int layers) {
this.view = view;
obs = new ArrayList<GameObject>(OBJECTS);
instances = 0;
// Set up vertex buffer
ByteBuffer vertexByteBuffer =
ByteBuffer.allocateDirect(
VERTEX_BYTES); // a float has 4 bytes so we allocate for each coordinate 4 bytes
vertexByteBuffer.order(ByteOrder.nativeOrder());
vertexBuffer =
vertexByteBuffer
.order(ByteOrder.nativeOrder())
.asFloatBuffer(); // allocates the memory from the bytebuffer
vertexBuffer.position(0); // puts the curser position at the beginning of the buffer
// Set up texture buffer
vertexByteBuffer = ByteBuffer.allocateDirect(TEX_BYTES);
vertexByteBuffer.order(ByteOrder.nativeOrder());
textureBuffer = vertexByteBuffer.asFloatBuffer();
textureBuffer.position(0);
// Set up index buffer
vertexByteBuffer = ByteBuffer.allocateDirect(INDEX_BYTES);
vertexByteBuffer.order(ByteOrder.nativeOrder());
indexBuffer = new ShortBuffer[layers];
for (int i = 0; i < layers; i++) {
indexBuffer[i] = vertexByteBuffer.asShortBuffer();
indexBuffer[i].position(0);
}
this.layers = layers;
lastIndex = new int[layers];
red = new float[layers];
green = new float[layers];
blue = new float[layers];
alpha = new float[layers];
for (int i = 0; i < layers; i++) {
red[i] = green[i] = blue[i] = alpha[i] = 1f;
}
for (int i = 0; i < buttonNewpress.length; i++) {
buttonNewpress[i] = -1;
}
for (int i = 0; i < buttonReleased.length; i++) {
buttonReleased[i] = -1;
}
// Camera initialization
camX = 0;
camY = 0;
camZoom = 1;
cAnchorX = 0;
cAnchorY = 0;
}
/** Convenience method */
public void toFloatBuffer(FloatBuffer $floatBuffer) {
$floatBuffer.position(0);
$floatBuffer.put(_x);
$floatBuffer.put(_y);
$floatBuffer.put(_z);
$floatBuffer.position(0);
}
private void setTextureRect(
float x, float y, float w, float h, float sw, float sh, boolean rotated) {
rect_.set(x, y, w, h);
rectRotated_ = rotated;
setContentSize(sw, sh);
updateTextureCoords(rect_);
float relativeOffsetX = unflippedOffsetPositionFromCenter_.x;
float relativeOffsetY = unflippedOffsetPositionFromCenter_.y;
// issue #732
if (flipX_) relativeOffsetX = -relativeOffsetX;
if (flipY_) relativeOffsetY = -relativeOffsetY;
offsetPosition_.x = relativeOffsetX + (contentSize_.width - rect_.size.width) / 2;
offsetPosition_.y = relativeOffsetY + (contentSize_.height - rect_.size.height) / 2;
// rendering using SpriteSheet
if (usesSpriteSheet_) {
// update dirty_, don't update recursiveDirty_
dirty_ = true;
} else { // self rendering
// Atlas: Vertex
float x1 = 0 + offsetPosition_.x;
float y1 = 0 + offsetPosition_.y;
float x2 = x1 + w;
float y2 = y1 + h;
// Don't update Z.
vertexes.position(0);
tmpV[0] = x1;
tmpV[1] = y2;
tmpV[2] = 0;
tmpV[3] = x1;
tmpV[4] = y1;
tmpV[5] = 0;
tmpV[6] = x2;
tmpV[7] = y2;
tmpV[8] = 0;
tmpV[9] = x2;
tmpV[10] = y1;
tmpV[11] = 0;
BufferUtils.copyFloats(tmpV, 0, vertexes, 12);
// vertexes.put(x1);
// vertexes.put(y2);
// vertexes.put(0);
// vertexes.put(x1);
// vertexes.put(y1);
// vertexes.put(0);
// vertexes.put(x2);
// vertexes.put(y2);
// vertexes.put(0);
// vertexes.put(x2);
// vertexes.put(y1);
// vertexes.put(0);
vertexes.position(0);
}
}
// 初始化坐标数据的方法
public void initVertexData(float R, float r, float angle_span, float height) {
List<Float> tempList = new ArrayList<Float>();
for (float vAngle = 0; vAngle < 360; vAngle = vAngle + angle_span) {
float x0 = (float) (r * Math.cos(Math.toRadians(vAngle)));
float y0 = height;
float z0 = (float) (-r * Math.sin(Math.toRadians(vAngle)));
float x1 = (float) (R * Math.cos(Math.toRadians(vAngle)));
float y1 = -height;
float z1 = (float) (-R * Math.sin(Math.toRadians(vAngle)));
float x2 = (float) (R * Math.cos(Math.toRadians(vAngle + angle_span)));
float y2 = -height;
float z2 = (float) (-R * Math.sin(Math.toRadians(vAngle + angle_span)));
float x3 = (float) (r * Math.cos(Math.toRadians(vAngle + angle_span)));
float y3 = height;
float z3 = (float) (-r * Math.sin(Math.toRadians(vAngle + angle_span)));
tempList.add(x0);
tempList.add(y0);
tempList.add(z0);
tempList.add(x1);
tempList.add(y1);
tempList.add(z1);
tempList.add(x3);
tempList.add(y3);
tempList.add(z3);
tempList.add(x3);
tempList.add(y3);
tempList.add(z3);
tempList.add(x1);
tempList.add(y1);
tempList.add(z1);
tempList.add(x2);
tempList.add(y2);
tempList.add(z2);
}
vCount = tempList.size() / 3; // 顶点数量
float[] vertex = new float[tempList.size()];
for (int i = 0; i < tempList.size(); i++) {
vertex[i] = tempList.get(i);
}
ByteBuffer vbb = ByteBuffer.allocateDirect(vertex.length * 4);
vbb.order(ByteOrder.nativeOrder());
mVertexBuffer = vbb.asFloatBuffer();
mVertexBuffer.put(vertex);
mVertexBuffer.position(0);
float[] texcoor = generateTexCoor((int) (360 / angle_span), 1, 1, 1);
ByteBuffer tbb = ByteBuffer.allocateDirect(texcoor.length * 4);
tbb.order(ByteOrder.nativeOrder());
mTexCoorBuffer = tbb.asFloatBuffer();
mTexCoorBuffer.put(texcoor);
mTexCoorBuffer.position(0);
}
@Override
public void updateVertices(int targetOffset, float[] vertices, int sourceOffset, int count) {
isDirty = true;
final int pos = buffer.position();
buffer.position(targetOffset);
BufferUtils.copy(vertices, sourceOffset, count, buffer);
buffer.position(pos);
bufferChanged();
}
/** Draws a cube. */
private void drawCube() {
// Pass in the position information
mCubePositions.position(0);
GLES20.glVertexAttribPointer(
mPositionHandle, mPositionDataSize, GLES20.GL_FLOAT, false, 0, mCubePositions);
GLES20.glEnableVertexAttribArray(mPositionHandle);
// Pass in the color information
mCubeColors.position(0);
GLES20.glVertexAttribPointer(
mColorHandle, mColorDataSize, GLES20.GL_FLOAT, false, 0, mCubeColors);
GLES20.glEnableVertexAttribArray(mColorHandle);
// Pass in the normal information
mCubeNormals.position(0);
GLES20.glVertexAttribPointer(
mNormalHandle, mNormalDataSize, GLES20.GL_FLOAT, false, 0, mCubeNormals);
GLES20.glEnableVertexAttribArray(mNormalHandle);
// Pass in the texture coordinate information
mCubeTextureCoordinates.position(0);
GLES20.glVertexAttribPointer(
mTextureCoordinateHandle,
mTextureCoordinateDataSize,
GLES20.GL_FLOAT,
false,
0,
mCubeTextureCoordinates);
GLES20.glEnableVertexAttribArray(mTextureCoordinateHandle);
// This multiplies the view matrix by the model matrix, and stores the result in the MVP matrix
// (which currently contains model * view).
Matrix.multiplyMM(mMVPMatrix, 0, mViewMatrix, 0, mModelMatrix, 0);
// Pass in the modelview matrix.
GLES20.glUniformMatrix4fv(mMVMatrixHandle, 1, false, mMVPMatrix, 0);
// This multiplies the modelview matrix by the projection matrix, and stores the result in the
// MVP matrix
// (which now contains model * view * projection).
Matrix.multiplyMM(mMVPMatrix, 0, mProjectionMatrix, 0, mMVPMatrix, 0);
// Pass in the combined matrix.
GLES20.glUniformMatrix4fv(mMVPMatrixHandle, 1, false, mMVPMatrix, 0);
// Pass in the light position in eye space.
GLES20.glUniform3f(
mLightPosHandle, mLightPosInEyeSpace[0], mLightPosInEyeSpace[1], mLightPosInEyeSpace[2]);
// Draw the cube.
GLES20.glDrawArrays(GLES20.GL_TRIANGLES, 0, 36);
}
public void onDrawFrame(GL10 glUnused) {
synchronized (this) {
if (updateSurface) {
mSurface.updateTexImage();
mSurface.getTransformMatrix(mSTMatrix);
updateSurface = false;
} else {
return;
}
}
GLES20.glClearColor(255.0f, 255.0f, 255.0f, 1.0f);
GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
GLES20.glUseProgram(mProgram);
checkGlError("glUseProgram");
GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
GLES20.glBindTexture(GL_TEXTURE_EXTERNAL_OES, mTextureID);
mTriangleVertices.position(TRIANGLE_VERTICES_DATA_POS_OFFSET);
GLES20.glVertexAttribPointer(
maPositionHandle,
3,
GLES20.GL_FLOAT,
false,
TRIANGLE_VERTICES_DATA_STRIDE_BYTES,
mTriangleVertices);
checkGlError("glVertexAttribPointer maPosition");
GLES20.glEnableVertexAttribArray(maPositionHandle);
checkGlError("glEnableVertexAttribArray maPositionHandle");
mTextureVertices.position(TRIANGLE_VERTICES_DATA_UV_OFFSET);
GLES20.glVertexAttribPointer(
maTextureHandle,
2,
GLES20.GL_FLOAT,
false,
TEXTURE_VERTICES_DATA_STRIDE_BYTES,
mTextureVertices);
checkGlError("glVertexAttribPointer maTextureHandle");
GLES20.glEnableVertexAttribArray(maTextureHandle);
checkGlError("glEnableVertexAttribArray maTextureHandle");
Matrix.setIdentityM(mMVPMatrix, 0);
GLES20.glUniformMatrix4fv(muMVPMatrixHandle, 1, false, mMVPMatrix, 0);
GLES20.glUniformMatrix4fv(muSTMatrixHandle, 1, false, mSTMatrix, 0);
GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);
checkGlError("glDrawArrays");
GLES20.glFinish();
}
public void glGetFloatv(int matrixGetName, FloatBuffer params) {
int pos = params.position();
if (matrixGetName == GL_MATRIX_MODE) {
params.put((float) matrixMode);
} else {
FloatBuffer matrix = glGetMatrixf(matrixGetName2MatrixModeName(matrixGetName));
params.put(matrix); // matrix -> params
matrix.reset();
}
params.position(pos);
}
@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
m_nViewWidth = width;
m_nViewHeight = height;
gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
// 图形最终显示到屏幕的区域的位置、长和宽
gl.glViewport(0, 0, width, height);
// 指定矩阵
gl.glMatrixMode(GL10.GL_PROJECTION);
// 将当前的矩阵设置为glMatrixMode指定的矩阵
gl.glLoadIdentity();
gl.glOrthof(0, m_nViewWidth, 0, m_nViewHeight, -1, 1);
gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
float coordinates[] = {
0,
(float) m_nVideoHeight / (float) m_glTextureSize,
(float) m_nVideoWidth / (float) m_glTextureSize,
(float) m_nVideoHeight / (float) m_glTextureSize,
0,
0,
(float) m_nVideoWidth / (float) m_glTextureSize,
0
};
m_coordinatesBuffer.put(coordinates);
m_coordinatesBuffer.position(0);
float vertices[] = {
0,
0,
(float) 0.0,
m_nViewWidth,
0,
(float) 0.0,
0,
m_nViewHeight,
(float) 0.0,
m_nViewWidth,
m_nViewHeight,
(float) 0.0
};
m_verticesBuffer.put(vertices);
m_verticesBuffer.position(0);
}
protected float[] getMatrixFloat(FloatBuffer b) {
if (pmvMatrix.usesBackingArray()) {
return b.array();
} else {
int p = b.position();
float[] pm = new float[16];
b.get(pm, p, 16);
b.position(p);
return pm;
}
}
private static void bulkPutBuffer(FloatBuffer b) {
int n = b.capacity();
b.clear();
FloatBuffer c = FloatBuffer.allocate(n + 7);
c.position(7);
for (int i = 0; i < n; i++) c.put((float) ic(i));
c.flip();
c.position(7);
b.put(c);
b.flip();
}
public void initGL(GL10 gl, Context context) {
Bitmap texture = Util.getTextureFromBitmapResource(context, _textureResource);
_width = texture.getWidth();
_height = texture.getHeight();
// scale the vertex buffer coords
for (int i = 0; i < _vertices.length; i += 3) {
_vertices[i] *= _width;
_vertices[i + 1] *= _height;
}
// a float is 4 bytes, therefore we multiply the number if
// vertices with 4.
ByteBuffer vbb = ByteBuffer.allocateDirect(_vertices.length * 4);
vbb.order(ByteOrder.nativeOrder());
_vertexBuffer = vbb.asFloatBuffer();
_vertexBuffer.put(_vertices);
_vertexBuffer.position(0);
// short is 2 bytes, therefore we multiply the number if
// vertices with 2.
ByteBuffer ibb = ByteBuffer.allocateDirect(_indices.length * 2);
ibb.order(ByteOrder.nativeOrder());
_indexBuffer = ibb.asShortBuffer();
_indexBuffer.put(_indices);
_indexBuffer.position(0);
// a float is 4 bytes, therefore we multiply the number if
// vertices with 4.
ByteBuffer tbb = ByteBuffer.allocateDirect(_textureCoords.length * 4);
tbb.order(ByteOrder.nativeOrder());
_textureCoordsBuffer = tbb.asFloatBuffer();
_textureCoordsBuffer.put(_textureCoords);
_textureCoordsBuffer.position(0);
// create texture
gl.glEnable(GL10.GL_TEXTURE_2D);
_texturesBuffer = IntBuffer.allocate(1);
gl.glGenTextures(1, _texturesBuffer);
gl.glBindTexture(GL10.GL_TEXTURE_2D, _texturesBuffer.get(0));
// set the texture
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S, GL10.GL_CLAMP_TO_EDGE);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T, GL10.GL_CLAMP_TO_EDGE);
GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, texture, 0);
texture.recycle();
}
public Float32Array copy(FloatBuffer buffer) {
if (GWT.isProdMode()) {
return ((Float32Array) ((HasArrayBufferView) buffer).getTypedArray())
.subarray(buffer.position(), buffer.remaining());
} else {
ensureCapacity(buffer);
for (int i = buffer.position(), j = 0; i < buffer.limit(); i++, j++) {
floatBuffer.set(j, buffer.get(i));
}
return floatBuffer.subarray(0, buffer.remaining());
}
}
public Floor() {
// make a floor
ByteBuffer bbFloorVertices = ByteBuffer.allocateDirect(FLOOR_COORDS.length * 4);
bbFloorVertices.order(ByteOrder.nativeOrder());
floorVertices = bbFloorVertices.asFloatBuffer();
floorVertices.put(FLOOR_COORDS);
floorVertices.position(0);
ByteBuffer bbFloorNormals = ByteBuffer.allocateDirect(FLOOR_NORMALS.length * 4);
bbFloorNormals.order(ByteOrder.nativeOrder());
floorNormals = bbFloorNormals.asFloatBuffer();
floorNormals.put(FLOOR_NORMALS);
floorNormals.position(0);
ByteBuffer bbFloorColors = ByteBuffer.allocateDirect(FLOOR_COLORS.length * 4);
bbFloorColors.order(ByteOrder.nativeOrder());
floorColors = bbFloorColors.asFloatBuffer();
floorColors.put(FLOOR_COLORS);
floorColors.position(0);
// now setup the shaders and program object
int vertexShader = myStereoRenderer.LoadShader(GLES30.GL_VERTEX_SHADER, light_vertex);
int gridShader = myStereoRenderer.LoadShader(GLES30.GL_FRAGMENT_SHADER, grid_fragment);
int programObject;
int[] linked = new int[1];
// Create the program object
programObject = GLES30.glCreateProgram();
if (programObject == 0) {
Log.e(TAG, "So some kind of error, but what?");
return;
}
GLES30.glAttachShader(programObject, vertexShader);
GLES30.glAttachShader(programObject, gridShader);
// Link the program
GLES30.glLinkProgram(programObject);
// Check the link status
GLES30.glGetProgramiv(programObject, GLES30.GL_LINK_STATUS, linked, 0);
if (linked[0] == 0) {
Log.e(TAG, "Error linking program:");
Log.e(TAG, GLES30.glGetProgramInfoLog(programObject));
GLES30.glDeleteProgram(programObject);
return;
}
// Store the program object
mProgramObject = programObject;
}
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);
}
public Cube(Bitmap b) {
// initialize buffer for vertex coordinates
ByteBuffer vpb =
ByteBuffer.allocateDirect(
// (# of coordinate values * 4 bytes per float)
faceCoords.length * 4);
vpb.order(ByteOrder.nativeOrder());
vertexBuffer = vpb.asFloatBuffer();
vertexBuffer.put(faceCoords);
vertexBuffer.position(0);
// initialize buffer for vertex normals
ByteBuffer vnb =
ByteBuffer.allocateDirect(
// (# of coordinate values * 4 bytes per float)
normals.length * 4);
vnb.order(ByteOrder.nativeOrder());
normalBuffer = vnb.asFloatBuffer();
normalBuffer.put(normals);
normalBuffer.position(0);
// initialize buffer for UV Coordinates
ByteBuffer uvb =
ByteBuffer.allocateDirect(
// (# of coordinate values * 4 bytes per float)
uvs.length * 4);
uvb.order(ByteOrder.nativeOrder());
uvBuffer = uvb.asFloatBuffer();
uvBuffer.put(uvs);
uvBuffer.position(0);
// initialize byte buffer for the draw list
ByteBuffer dlb =
ByteBuffer.allocateDirect(
// (# of coordinate values * 2 bytes per short)
drawOrder.length * 2);
dlb.order(ByteOrder.nativeOrder());
drawListBuffer = dlb.asShortBuffer();
drawListBuffer.put(drawOrder);
drawListBuffer.position(0);
int vertexShader = loadShader(GLES20.GL_VERTEX_SHADER, vertexShaderCode);
int fragmentShader = loadShader(GLES20.GL_FRAGMENT_SHADER, fragmentShaderCode);
shaderProgram = GLES20.glCreateProgram();
GLES20.glAttachShader(shaderProgram, vertexShader);
GLES20.glAttachShader(shaderProgram, fragmentShader);
GLES20.glLinkProgram(shaderProgram);
loadTexture(b);
}
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);
}
public MarkerTile(float mx, float my, float sx, float sy, int texture) {
midx = mx;
midy = my;
sizx = sx;
sizy = sy;
midOx = mx;
midOy = my;
sizOx = sx;
sizOy = sy;
midTx = mx;
midTy = my;
sizTx = sx;
sizTy = sy;
textureRef = texture;
int vertexInfoShader =
XQGLRenderer.loadShader(GLES20.GL_VERTEX_SHADER, vertexInfoTileShaderCode);
int fragmentInfoShader =
XQGLRenderer.loadShader(GLES20.GL_FRAGMENT_SHADER, fragmentInfoTileShaderCode);
mProgram = GLES20.glCreateProgram();
// add the vertex shader to program
GLES20.glAttachShader(mProgram, vertexInfoShader);
// add the fragment shader to program
GLES20.glAttachShader(mProgram, fragmentInfoShader);
// creates OpenGL ES program executables
GLES20.glLinkProgram(mProgram);
ByteBuffer byteBuffer = ByteBuffer.allocateDirect(tileCoords.length * 4);
byteBuffer.order(ByteOrder.nativeOrder());
vertexBuffer = byteBuffer.asFloatBuffer();
vertexBuffer.put(tileCoords);
vertexBuffer.position(0);
byteBuffer = ByteBuffer.allocateDirect(drawOrder.length * 4);
byteBuffer.order(ByteOrder.nativeOrder());
indexBuffer = byteBuffer.asShortBuffer();
indexBuffer.put(drawOrder);
indexBuffer.position(0);
byteBuffer = ByteBuffer.allocateDirect(TextureCoords.length * 4);
byteBuffer.order(ByteOrder.nativeOrder());
textureBuffer = byteBuffer.asFloatBuffer();
textureBuffer.put(TextureCoords);
textureBuffer.position(0);
}
