本文整理汇总了C++中msa::OpenCL类的典型用法代码示例。如果您正苦于以下问题：C++ OpenCL类的具体用法？C++ OpenCL怎么用？C++ OpenCL使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了OpenCL类的12个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: setup
//--------------------------------------------------------------
void testApp::setup(){
ofBackground(50, 50, 50);
// dump everything to console
ofSetLogLevel(OF_LOG_VERBOSE);
// disable vsync (to allow >60fps)
ofSetVerticalSync(false);
// init grabber
videoGrabber.initGrabber(640, 480);
vidWidth = videoGrabber.getWidth();
vidHeight = videoGrabber.getHeight();
// allocate temp buffer
pixels = new unsigned char[vidWidth * vidHeight * 4];
// init OpenCL from OpenGL context to enable GL-CL data sharing
openCL.setupFromOpenGL();
// create OpenCL textures and related OpenGL textures
clImage[0].initWithTexture(vidWidth, vidHeight, GL_RGBA);
clImage[1].initWithTexture(vidWidth, vidHeight, GL_RGBA);
// load and compile OpenCL program
openCL.loadProgramFromFile("MSAOpenCL/ImageProcessing.cl");
// load kernels
openCL.loadKernel("msa_boxblur");
openCL.loadKernel("msa_flipx");
openCL.loadKernel("msa_flipy");
openCL.loadKernel("msa_greyscale");
openCL.loadKernel("msa_invert");
openCL.loadKernel("msa_threshold");
}示例2: draw
//--------------------------------------------------------------
void testApp::draw(){
videoGrabber.draw(0, 200);
// make sure all OpenCL kernels have finished executing before drawing
openCL.finish();
// draw the OpenGL texture (which was mapped to the OpenCL image)
clImage[activeImageIndex].getTexture().draw(vidWidth, 200);
ofDrawBitmapString( " app FPS : " + ofToString(ofGetFrameRate(), 2)
+ "\n capture FPS : " + ofToString(captureFPS, 2)
+ "\n"
+ "\n doBlur (b) : " + (doBlur ? "X" : "")
+ "\n blurAmount (1-9) : " + ofToString(blurAmount)
+ "\n doFlipX (x) : " + (doFlipX ? "X" : "")
+ "\n doFlipY (y) : " + (doFlipY ? "X" : "")
+ "\n doGreyscale (g) : " + (doGreyscale ? "X" : "")
+ "\n doInvert (i) : " + (doInvert ? "X" : "")
+ "\n doThreshold (t) : " + (doThreshold ? "X" : "")
+ "\n threshLevel ([]) : " + ofToString(threshLevel, 2)
, 30, 30);
}示例3: setup
//--------------------------------------------------------------
void testApp::setup(){
ofBackground(0, 0, 0);
ofSetLogLevel(OF_LOG_VERBOSE);
ofSetVerticalSync(false);
opencl.setupFromOpenGL();
// create vbo
glGenBuffersARB(1, &vbo);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo);
glBufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(float2) * NUM_PARTICLES, 0, GL_DYNAMIC_COPY_ARB);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
// init host and CL buffers
particles.initBuffer(NUM_PARTICLES);
particlePos.initFromGLObject(vbo, NUM_PARTICLES);
// init data
for(int i=0; i<NUM_PARTICLES; i++) {
Particle &p = particles[i];
p.vel.set(0, 0);
p.mass = ofRandom(0.5, 1);
particlePos[i].set(ofRandomWidth(), ofRandomHeight());
}
particles.writeToDevice();
particlePos.writeToDevice();
opencl.loadProgramFromFile("MSAOpenCL/Particle.cl");
opencl.loadKernel("updateParticle");
opencl.kernel("updateParticle")->setArg(0, particles.getCLMem());
opencl.kernel("updateParticle")->setArg(1, particlePos.getCLMem());
opencl.kernel("updateParticle")->setArg(2, mousePos);
opencl.kernel("updateParticle")->setArg(3, dimensions);
glPointSize(1);
}示例4: update
//--------------------------------------------------------------
void testApp::update(){
// grab new frame
videoGrabber.update();
// if there is a new frame....
if(videoGrabber.isFrameNew()) {
// RGB textures don't seem to work well. so need to copy the vidgrabber data into a RGBA texture
int pixelIndex = 0;
for(int i=0; i<vidWidth; i++) {
for(int j=0; j<vidHeight; j++) {
int indexRGB = pixelIndex * 3;
int indexRGBA = pixelIndex * 4;
pixels[indexRGBA ] = videoGrabber.getPixels()[indexRGB ];
pixels[indexRGBA+1] = videoGrabber.getPixels()[indexRGB+1];
pixels[indexRGBA+2] = videoGrabber.getPixels()[indexRGB+2];
pixels[indexRGBA+3] = 255;
pixelIndex++;
}
}
// write the new pixel data into the OpenCL Image (and thus the OpenGL texture)
clImage[activeImageIndex].write(pixels);
if(doBlur) {
msa::OpenCLKernel *kernel = openCL.kernel("msa_boxblur");
for(int i=0; i<blurAmount; i++) {
cl_int offset = i * i / 2 + 1;
kernel->setArg(0, clImage[activeImageIndex].getCLMem());
kernel->setArg(1, clImage[1-activeImageIndex].getCLMem());
kernel->setArg(2, offset);
kernel->run2D(vidWidth, vidHeight);
activeImageIndex = 1 - activeImageIndex;
}
}
if(doFlipX) {
msa::OpenCLKernel *kernel = openCL.kernel("msa_flipx");
kernel->setArg(0, clImage[activeImageIndex].getCLMem());
kernel->setArg(1, clImage[1-activeImageIndex].getCLMem());
kernel->run2D(vidWidth, vidHeight);
activeImageIndex = 1 - activeImageIndex;
}
if(doFlipY) {
msa::OpenCLKernel *kernel = openCL.kernel("msa_flipy");
kernel->setArg(0, clImage[activeImageIndex].getCLMem());
kernel->setArg(1, clImage[1-activeImageIndex].getCLMem());
kernel->run2D(vidWidth, vidHeight);
activeImageIndex = 1 - activeImageIndex;
}
if(doGreyscale) {
msa::OpenCLKernel *kernel = openCL.kernel("msa_greyscale");
kernel->setArg(0, clImage[activeImageIndex].getCLMem());
kernel->setArg(1, clImage[1-activeImageIndex].getCLMem());
kernel->run2D(vidWidth, vidHeight);
activeImageIndex = 1 - activeImageIndex;
}
if(doInvert) {
msa::OpenCLKernel *kernel = openCL.kernel("msa_invert");
kernel->setArg(0, clImage[activeImageIndex].getCLMem());
kernel->setArg(1, clImage[1-activeImageIndex].getCLMem());
kernel->run2D(vidWidth, vidHeight);
activeImageIndex = 1 - activeImageIndex;
}
if(doThreshold) {
msa::OpenCLKernel *kernel = openCL.kernel("msa_threshold");
kernel->setArg(0, clImage[activeImageIndex].getCLMem());
kernel->setArg(1, clImage[1-activeImageIndex].getCLMem());
kernel->setArg(2, threshLevel);
kernel->run2D(vidWidth, vidHeight);
activeImageIndex = 1 - activeImageIndex;
}
// calculate capture fps
static float lastTime = 0;
float nowTime = ofGetElapsedTimef();
float timeDiff = nowTime - lastTime;
if(timeDiff > 0 ) captureFPS = 0.9f * captureFPS + 0.1f / timeDiff;
lastTime = nowTime;
}
}示例5: update
void ofxKinectTracking::update(){
bool newFrame;
#ifndef NORMAL_CAMERA
kinect->update();
newFrame = kinect->isFrameNew();
#else
videoGrabber.update();
newFrame = videoGrabber.isFrameNew();
if(newFrame){
int pixelIndex = 0;
for(int i=0; i<640; i++) {
for(int j=0; j<480; j++) {
int indexRGB = pixelIndex * 3;
int indexL = pixelIndex;
pixels[indexL] = videoGrabber.getPixels()[indexRGB+1 ];
pixelIndex++;
}
}
// write the new pixel data into the OpenCL Image (and thus the OpenGL texture)
clImage[0].write(pixels);
}
#endif
if(newFrame){
cl_int2 spawnCoord = {int(ofRandom(0, 640)), int(ofRandom(0, 480))};
if(ofRandom(0, 1) < 0.500){
spawnCoord[0] = -1;
spawnCoord[0] = -1;
}
MSA::OpenCLKernel *preKernel = openCL.kernel("preUpdate");
MSA::OpenCLKernel *updateKernel = openCL.kernel("update");
MSA::OpenCLKernel *postKernel = openCL.kernel("postUpdate");
//Prepare timetaking
double totalTimeTmp;
uint64_t mbeg, mend;
openCL.finish();
mbeg = mach_absolute_time();
//Run pre update kernel
preKernel->setArg(0, clImage[0].getCLMem());
preKernel->setArg(1, clAntsBuffer.getCLMem());
preKernel->run2D(640, 480);
//Calculate time
openCL.finish();
mend = mach_absolute_time();
killingTime.push_back(machcore(mend, mbeg));
totalTimeTmp = machcore(mend, mbeg);
mbeg = mach_absolute_time();
//Run update kernel
size_t shared_size = (1 * 64) * sizeof(int);
updateKernel->setArg(0, clAntsBuffer.getCLMem());
updateKernel->setArg(1, clSharedBuffer.getCLMem());
updateKernel->setArg(2, spawnCoord);
clSetKernelArg(updateKernel->getCLKernel(), 3, shared_size, NULL);
for(int i=0;i<NUM_ITERATIONS;i++){
updateKernel->run2D(640, 480);
}
//Calculate time
openCL.finish();
mend = mach_absolute_time();
spawningTime.push_back(machcore(mend, mbeg));
totalTimeTmp += machcore(mend, mbeg);
mbeg = mach_absolute_time();
//Run post update kernel
postKernel->setArg(0, clImage[0].getCLMem());
postKernel->setArg(1, clImage[1].getCLMem());
postKernel->setArg(2, clAntsBuffer.getCLMem());
postKernel->setArg(3, clSharedBuffer.getCLMem());
postKernel->setArg(4, spawnCoord);
postKernel->run2D(640, 480);
//Calculate time
openCL.finish();
mend = mach_absolute_time();
updateTime.push_back(machcore(mend, mbeg));
totalTimeTmp += machcore(mend, mbeg);
totalTime.push_back(totalTimeTmp);
if(totalTime.size() > (640*2)/3){
totalTime.erase(totalTime.begin());
killingTime.erase(killingTime.begin());
spawningTime.erase(spawningTime.begin());
updateTime.erase(updateTime.begin());
}
}
//.........这里部分代码省略.........
示例6: update
//--------------------------------------------------------------
void testApp::update(){
mousePos.x = ofGetMouseX();
mousePos.y = ofGetMouseY();
dimensions.x = ofGetWidth();
dimensions.y = ofGetHeight();
opencl.kernel("updateParticle")->setArg(2, mousePos);
opencl.kernel("updateParticle")->setArg(3, dimensions);
opencl.kernel("updateParticle")->run1D(NUM_PARTICLES);
}示例7: update
//--------------------------------------------------------------
void ofApp::update(){
mousePos.x = ofGetMouseX();
mousePos.y = ofGetMouseY();
dimensions.x = ofGetWidth();
dimensions.y = ofGetHeight();
opencl.kernel("updateParticle")->setArg(2, mousePos);//.getPtr(), sizeof(float2));
opencl.kernel("updateParticle")->setArg(3, dimensions);//.getPtr(), sizeof(float2) );
glFlush();
opencl.kernel("updateParticle")->run1D(NUM_PARTICLES);
}示例8: draw
//--------------------------------------------------------------
void ofApp::draw(){
opencl.finish();
glColor3f(1.0f, 1.0f, 1.0f);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo);
opencl.finish();
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, 0);
glDrawArrays(GL_POINTS, 0, NUM_PARTICLES);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
glColor3f(1, 1, 1);
string info = "fps: " + ofToString(ofGetFrameRate()) + "\nnumber of particles: " + ofToString(NUM_PARTICLES);
ofDrawBitmapString(info, 20, 20);
}示例9: draw
//--------------------------------------------------------------
void testApp::draw(){
glColor3f(1.0f, 1.0f, 1.0f);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo[0]);
#ifdef USE_OPENGL_CONTEXT
opencl.finish();
#else
opencl.readBuffer(sizeof(Vec2) * NUM_PARTICLES, clMemPosVBO, particlesPos);
glBufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(Vec2) * NUM_PARTICLES, particlesPos);
#endif
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, 0);
glDrawArrays(GL_POINTS, 0, NUM_PARTICLES);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
glColor3f(1, 1, 1);
string info = "fps: " + ofToString(ofGetFrameRate()) + "\nnumber of particles: " + ofToString(NUM_PARTICLES);
ofDrawBitmapString(info, 20, 20);
}示例10: init
void ofxKinectTracking::init(){
openCL.setupFromOpenGL();
#ifndef NORMAL_CAMERA
kinect = new ofxKinect();
kinect->init();
kinect->setVerbose(true);
kinect->open();
//The depth image
clImage[0].initFromTexture(kinect->getDepthTextureReference(), CL_MEM_READ_ONLY, 0);
#else
videoGrabber.initGrabber(640, 480, true);
clImage[0].initWithTexture(640, 480, GL_LUMINANCE, CL_MEM_READ_ONLY);
pixels = new unsigned char[640*480];
#endif
//The debug image
clImage[1].initWithTexture(640, 480, GL_RGBA);
//Intialize the ants buffer
resetBufferData();
clAntsBuffer.initBuffer(sizeof(Ant)*NUM_ANTS, CL_MEM_READ_WRITE, ants, true);
//Buffer of shared variables
sharedVariables[0] = 0;
clSharedBuffer.initBuffer(sizeof(int)*1, CL_MEM_READ_WRITE, sharedVariables, true);
openCL.loadProgramFromFile("../../../../../addons/ofxKinectTracking/src/KinectTracking.cl");
openCL.loadKernel("preUpdate");
openCL.loadKernel("update");
openCL.loadKernel("postUpdate");
}示例11: drawDepth
void ofxKinectTracking::drawDepth(int x, int y, int w, int h){
ofSetColor(255, 255, 255);
openCL.finish();
#ifndef NORMAL_CAMERA
kinect->drawDepth(x,y,w,h);
#else
clImage[0].draw(x,y,w,h);
#endif
clImage[1].draw(x+w, y, w,h);
ofSetColor(255, 0, 0);
ofDrawBitmapString(ofToString(ofGetFrameRate(), 1), ofPoint(20,20));
ofEnableAlphaBlending();
glTranslated(0, 480*2, 0);
float scale = 5000.0;
{
ofSetColor(255, 255, 255,100);
double avg = 0;
glBegin(GL_LINE_STRIP);
for(int i=10;i<totalTime.size();i++){
glVertex2d(i*3, -totalTime[i]*scale);
avg += totalTime[i];
}
glEnd();
avg /=totalTime.size()-10;
ofSetColor(255, 100, 255,255);
ofLine(0, -avg*scale, 640*2, -avg*scale);
ofDrawBitmapString("Avg: "+ofToString(avg*10000, 2), ofPoint(5,-avg*scale-10));
double percentage = ((avg)/(1/30.0))*100;
ofSetColor(255, 255, 255);
ofDrawBitmapString("Time percentage of one frame used on openCL: "+ofToString(percentage, 2)+"%", ofPoint(5,-460));
}
{
ofSetColor(255, 0, 0,150);
double avg = 0;
glBegin(GL_LINE_STRIP);
for(int i=10;i<killingTime.size();i++){
// cout<<totalTime[i]*10000.0<<endl;
glVertex2d(i*3, -killingTime[i]*scale);
avg += killingTime[i];
}
glEnd();
avg /=killingTime.size()-10;
ofSetColor(255, 100, 0);
ofLine(0, -avg*scale, 640*2, -avg*scale);
ofDrawBitmapString("K Avg: "+ofToString(avg*10000, 2), ofPoint(5,-avg*scale-10));
}
{
ofSetColor(0, 255, 0,150);
double avg = 0;
glBegin(GL_LINE_STRIP);
for(int i=10;i<spawningTime.size();i++){
// cout<<totalTime[i]*10000.0<<endl;
glVertex2d(i*3, -spawningTime[i]*scale);
avg += spawningTime[i];
}
glEnd();
avg /=spawningTime.size()-10;
ofSetColor(100, 255, 0);
ofLine(0, -avg*scale, 640*2, -avg*scale);
ofDrawBitmapString("S Avg: "+ofToString(avg*10000, 2), ofPoint(5,-avg*scale-10));
}
{
ofSetColor(0, 0, 255,150);
double avg = 0;
glBegin(GL_LINE_STRIP);
for(int i=10;i<updateTime.size();i++){
// cout<<totalTime[i]*10000.0<<endl;
glVertex2d(i*3, -updateTime[i]*scale);
avg += updateTime[i];
}
glEnd();
avg /=updateTime.size()-10;
ofSetColor(0, 100, 255);
ofLine(0, -avg*scale, 640*2, -avg*scale);
ofDrawBitmapString("U Avg: "+ofToString(avg*10000, 2), ofPoint(5,-avg*scale-10));
}
}示例12: setup
//--------------------------------------------------------------
void testApp::setup(){
ofBackground(0, 0, 0);
ofSetLogLevel(OF_LOG_VERBOSE);
ofSetVerticalSync(false);
#ifdef USE_OPENGL_CONTEXT
opencl.setupFromOpenGL();
#else
opencl.setup(CL_DEVICE_TYPE_CPU, 2);
#endif
for(int i=0; i<NUM_PARTICLES; i++) {
Particle &p = particles[i];
p.vel.set(0, 0);
p.mass = ofRandom(0.5, 1);
particlesPos[i].set(ofRandomWidth(), ofRandomHeight());
}
glGenBuffersARB(1, vbo);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo[0]);
glBufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(float2) * NUM_PARTICLES, particlesPos, GL_DYNAMIC_COPY_ARB);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
opencl.loadProgramFromFile("MSAOpenCL/Particle.cl");
kernelUpdate = opencl.loadKernel("updateParticle");
clMemParticles.initBuffer(sizeof(Particle) * NUM_PARTICLES, CL_MEM_READ_WRITE, particles);
#ifdef USE_OPENGL_CONTEXT
clMemPosVBO.initFromGLObject(vbo[0]);
#else
clMemPosVBO.initBuffer(sizeof(Vec2) * NUM_PARTICLES, CL_MEM_READ_WRITE, particlesPos);
#endif
kernelUpdate->setArg(0, clMemParticles.getCLMem());
kernelUpdate->setArg(1, clMemPosVBO.getCLMem());
kernelUpdate->setArg(2, mousePos);
kernelUpdate->setArg(3, dimensions);
glPointSize(1);
}