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JNIEXPORT void JNICALL
Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargetsRenderer_renderFrame(JNIEnv *, jobject)
{
jclass activityClass = env->GetObjectClass(obj); //We get the class of out activity
jmethodID updateMatrixMethod = env->GetMethodID(activityClass, "updateModelviewMatrix", "([F)V");
const QCAR::CameraCalibration& cameraCalibration = QCAR::CameraDevice::getInstance().getCameraCalibration();
QCAR::Vec2F size = cameraCalibration.getSize();
QCAR::Vec2F focalLength = cameraCalibration.getFocalLength();
float fovyRadians = 2 * atan(0.5f * size.data[1] / focalLength.data[1]);
float fovRadians = 2 * atan(0.5f * size.data[0] / focalLength.data[0]);
jmethodID fovMethod = env->GetMethodID(activityClass, "setFov", "(F)V");
jmethodID fovyMethod = env->GetMethodID(activityClass, "setFovy", "(F)V");
env->CallVoidMethod(obj, fovMethod, fovRadians);
env->CallVoidMethod(obj, fovyMethod, fovyRadians);
jfloatArray modelviewArray = env->NewFloatArray(16);
for(int tIdx = 0; tIdx < state.getNumTrackableResults(); tIdx++)
{
// Get the trackable:
const QCAR::TrackableResult* result = state.getTrackableResult(tIdx);
const QCAR::Trackable& trackable = result->getTrackable();
QCAR::Matrix44F modelViewMatrix = QCAR::Tool::convertPose2GLMatrix(result->getPose());
'''SampleUtils::rotatePoseMatrix(180.0f, 1.0f, 0, 0, &modelViewMatrix.data[0]);
// Passes the model view matrix to java
env->SetFloatArrayRegion(modelviewArray, 0, 16, modelViewMatrix.data);
env->CallVoidMethod(obj, updateMatrixMethod , modelviewArray);'''
}
env->DeleteLocalRef(modelviewArray);
// Clear color and depth buffer
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Get the state from QCAR and mark the beginning of a rendering section
QCAR::State state = QCAR::Renderer::getInstance().begin();
// Explicitly render the Video Background
QCAR::Renderer::getInstance().drawVideoBackground();
// Did we find any trackables this frame?
for(int tIdx = 0; tIdx < state.getNumTrackableResults(); tIdx++)
{
// Get the trackable:
const QCAR::TrackableResult* result = state.getTrackableResult(tIdx);
const QCAR::Trackable& trackable = result->getTrackable();
QCAR::Matrix44F modelViewMatrix = QCAR::Tool::convertPose2GLMatrix(result->getPose());
}
QCAR::Renderer::getInstance().end();
}
//LOG("Java_com_qualcomm_QCARSamples_ImageTargets_GLRenderer_renderFrame");
// Clear color and depth buffer
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Get the state from QCAR and mark the beginning of a rendering section
QCAR::State state = QCAR::Renderer::getInstance().begin();
// Explicitly render the Video Background
QCAR::Renderer::getInstance().drawVideoBackground();
#ifdef USE_OPENGL_ES_1_1
// Set GL11 flags:
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnable(GL_TEXTURE_2D);
glDisable(GL_LIGHTING);
#endif
glEnable(GL_DEPTH_TEST);
// We must detect if background reflection is active and adjust the culling direction.
// If the reflection is active, this means the post matrix has been reflected as well,
// therefore standard counter clockwise face culling will result in "inside out" models.
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
if(QCAR::Renderer::getInstance().getVideoBackgroundConfig().mReflection == QCAR::VIDEO_BACKGROUND_REFLECTION_ON)
glFrontFace(GL_CW); //Front camera
else
glFrontFace(GL_CCW); //Back camera
// Did we find any trackables this frame?
for(int tIdx = 0; tIdx < state.getNumTrackableResults(); tIdx++)
{
// Get the trackable:
const QCAR::TrackableResult* result = state.getTrackableResult(tIdx);
const QCAR::Trackable& trackable = result->getTrackable();
QCAR::Matrix44F modelViewMatrix =
QCAR::Tool::convertPose2GLMatrix(result->getPose());
// Choose the texture based on the target name:
int textureIndex;
if (strcmp(trackable.getName(), "chips") == 0)
{
textureIndex = 0;
}
else if (strcmp(trackable.getName(), "stones") == 0)
{
textureIndex = 1;
}
else
{
textureIndex = 2;
}
const Texture* const thisTexture = textures[textureIndex];
#ifdef USE_OPENGL_ES_1_1
// Load projection matrix:
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(projectionMatrix.data);
// Load model view matrix:
glMatrixMode(GL_MODELVIEW);
glLoadMatrixf(modelViewMatrix.data);
glTranslatef(0.f, 0.f, kObjectScale);
glScalef(kObjectScale, kObjectScale, kObjectScale);
// Draw object:
// glBindTexture(GL_TEXTURE_2D, thisTexture->mTextureID);
// glTexCoordPointer(2, GL_FLOAT, 0, (const GLvoid*) &teapotTexCoords[0]);
glVertexPointer(3, GL_FLOAT, 0, (const GLvoid*) &teschtVerts[0]);
glNormalPointer(GL_FLOAT, 0, (const GLvoid*) &teschtNormals[0]);
// glDrawElements(GL_TRIANGLES, NUM_TEAPOT_OBJECT_INDEX, GL_UNSIGNED_SHORT,
// (const GLvoid*) &teschtIndices[0]);
glDrawArrays(GL_TRIANGLES, 0, teschtNumVerts);
#else
QCAR::Matrix44F modelViewProjection;
SampleUtils::translatePoseMatrix(0.0f, 0.0f, kObjectScale,
&modelViewMatrix.data[0]);
SampleUtils::scalePoseMatrix(kObjectScale, kObjectScale, kObjectScale,
&modelViewMatrix.data[0]);
SampleUtils::multiplyMatrix(&projectionMatrix.data[0],
&modelViewMatrix.data[0] ,
&modelViewProjection.data[0]);
glUseProgram(shaderProgramID);
glVertexAttribPointer(vertexHandle, 3, GL_FLOAT, GL_FALSE, 0,
(const GLvoid*) &teschtVerts[0]);
glVertexAttribPointer(normalHandle, 3, GL_FLOAT, GL_FALSE, 0,
(const GLvoid*) &teschtNormals[0]);
glVertexAttribPointer(textureCoordHandle, 2, GL_FLOAT, GL_FALSE, 0,
(const GLvoid*) &teapotTexCoords[0]);
glEnableVertexAttribArray(vertexHandle);
glEnableVertexAttribArray(normalHandle);
glEnableVertexAttribArray(textureCoordHandle);
//glActiveTexture(GL_TEXTURE0);
// glBindTexture(GL_TEXTURE_2D, thisTexture->mTextureID);
// glUniform1i(texSampler2DHandle, 0 /*GL_TEXTURE0*/);
glUniformMatrix4fv(mvpMatrixHandle, 1, GL_FALSE,
(GLfloat*)&modelViewProjection.data[0] );
// glDrawElements(GL_TRIANGLES, NUM_TEAPOT_OBJECT_INDEX, GL_UNSIGNED_SHORT,
// (const GLvoid*) &teschtIndices[0]);
glDrawArrays(GL_TRIANGLES, 0, teschtNumVerts);
SampleUtils::checkGlError("ImageTargets renderFrame");
#endif
}
glDisable(GL_DEPTH_TEST);
#ifdef USE_OPENGL_ES_1_1
glDisable(GL_TEXTURE_2D);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
#else
glDisableVertexAttribArray(vertexHandle);
glDisableVertexAttribArray(normalHandle);
glDisableVertexAttribArray(textureCoordHandle);
#endif
QCAR::Renderer::getInstance().end();
}
void
configureVideoBackground()
{
// Get the default video mode:
QCAR::CameraDevice& cameraDevice = QCAR::CameraDevice::getInstance();
QCAR::VideoMode videoMode = cameraDevice.
getVideoMode(QCAR::CameraDevice::MODE_DEFAULT);
// Configure the video background
QCAR::VideoBackgroundConfig config;
config.mEnabled = true;
config.mSynchronous = true;
config.mPosition.data[0] = 0.0f;
config.mPosition.data[1] = 0.0f;
if (isActivityInPortraitMode)
{
//LOG("configureVideoBackground PORTRAIT");
config.mSize.data[0] = videoMode.mHeight
* (screenHeight / (float)videoMode.mWidth);
config.mSize.data[1] = screenHeight;
if(config.mSize.data[0] < screenWidth)
{
LOG("Correcting rendering background size to handle missmatch between screen and video aspect ratios.");
config.mSize.data[0] = screenWidth;
config.mSize.data[1] = screenWidth *
(videoMode.mWidth / (float)videoMode.mHeight);
}
}
else
{
//LOG("configureVideoBackground LANDSCAPE");
config.mSize.data[0] = screenWidth;
config.mSize.data[1] = videoMode.mHeight
* (screenWidth / (float)videoMode.mWidth);
if(config.mSize.data[1] < screenHeight)
{
LOG("Correcting rendering background size to handle missmatch between screen and video aspect ratios.");
config.mSize.data[0] = screenHeight
* (videoMode.mWidth / (float)videoMode.mHeight);
config.mSize.data[1] = screenHeight;
}
}
LOG("Configure Video Background : Video (%d,%d), Screen (%d,%d), mSize (%d,%d)", videoMode.mWidth, videoMode.mHeight, screenWidth, screenHeight, config.mSize.data[0], config.mSize.data[1]);
// Set the config:
QCAR::Renderer::getInstance().setVideoBackgroundConfig(config);
}
JNIEXPORT void JNICALL
Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_initApplicationNative(
JNIEnv* env, jobject obj, jint width, jint height)
{
LOG("Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_initApplicationNative");
// Store screen dimensions
screenWidth = width;
screenHeight = height;
// Handle to the activity class:
jclass activityClass = env->GetObjectClass(obj);
jmethodID getTextureCountMethodID = env->GetMethodID(activityClass,
"getTextureCount", "()I");
if (getTextureCountMethodID == 0)
{
LOG("Function getTextureCount() not found.");
return;
}
textureCount = env->CallIntMethod(obj, getTextureCountMethodID);
if (!textureCount)
{
LOG("getTextureCount() returned zero.");
return;
}
textures = new Texture*[textureCount];
jmethodID getTextureMethodID = env->GetMethodID(activityClass,
"getTexture", "(I)Lcom/qualcomm/QCARSamples/ImageTargets/Texture;");
if (getTextureMethodID == 0)
{
LOG("Function getTexture() not found.");
return;
}
// Register the textures
for (int i = 0; i < textureCount; ++i)
{
jobject textureObject = env->CallObjectMethod(obj, getTextureMethodID, i);
if (textureObject == NULL)
{
LOG("GetTexture() returned zero pointer");
return;
}
textures[i] = Texture::create(env, textureObject);
}
LOG("Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_initApplicationNative finished");
}
JNIEXPORT void JNICALL
Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_deinitApplicationNative(
JNIEnv* env, jobject obj)
{
LOG("Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_deinitApplicationNative");
// Release texture resources
if (textures != 0)
{
for (int i = 0; i < textureCount; ++i)
{
delete textures[i];
textures[i] = NULL;
}
delete[]textures;
textures = NULL;
textureCount = 0;
}
}
JNIEXPORT void JNICALL
Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_startCamera(JNIEnv *,
jobject)
{
LOG("Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_startCamera");
// Select the camera to open, set this to QCAR::CameraDevice::CAMERA_FRONT
// to activate the front camera instead.
QCAR::CameraDevice::CAMERA camera = QCAR::CameraDevice::CAMERA_DEFAULT;
// Initialize the camera:
if (!QCAR::CameraDevice::getInstance().init(camera))
return;
// Configure the video background
configureVideoBackground();
// Select the default mode:
if (!QCAR::CameraDevice::getInstance().selectVideoMode(
QCAR::CameraDevice::MODE_DEFAULT))
return;
// Start the camera:
if (!QCAR::CameraDevice::getInstance().start())
return;
// Uncomment to enable flash
//if(QCAR::CameraDevice::getInstance().setFlashTorchMode(true))
// LOG("IMAGE TARGETS : enabled torch");
// Uncomment to enable infinity focus mode, or any other supported focus mode
// See CameraDevice.h for supported focus modes
//if(QCAR::CameraDevice::getInstance().setFocusMode(QCAR::CameraDevice::FOCUS_MODE_INFINITY))
// LOG("IMAGE TARGETS : enabled infinity focus");
// Start the tracker:
QCAR::TrackerManager& trackerManager = QCAR::TrackerManager::getInstance();
QCAR::Tracker* imageTracker = trackerManager.getTracker(QCAR::Tracker::IMAGE_TRACKER);
if(imageTracker != 0)
imageTracker->start();
}
JNIEXPORT void JNICALL
Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_stopCamera(JNIEnv *, jobject)
{
LOG("Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_stopCamera");
// Stop the tracker:
QCAR::TrackerManager& trackerManager = QCAR::TrackerManager::getInstance();
QCAR::Tracker* imageTracker = trackerManager.getTracker(QCAR::Tracker::IMAGE_TRACKER);
if(imageTracker != 0)
imageTracker->stop();
QCAR::CameraDevice::getInstance().stop();
QCAR::CameraDevice::getInstance().deinit();
}
JNIEXPORT void JNICALL
Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_setProjectionMatrix(JNIEnv *, jobject)
{
LOG("Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_setProjectionMatrix");
// Cache the projection matrix:
const QCAR::CameraCalibration& cameraCalibration =
QCAR::CameraDevice::getInstance().getCameraCalibration();
projectionMatrix = QCAR::Tool::getProjectionGL(cameraCalibration, 2.0f, 2500.0f);
}
// ----------------------------------------------------------------------------
// Activates Camera Flash
// ----------------------------------------------------------------------------
JNIEXPORT jboolean JNICALL
Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_activateFlash(JNIEnv*, jobject, jboolean flash)
{
return QCAR::CameraDevice::getInstance().setFlashTorchMode((flash==JNI_TRUE)) ? JNI_TRUE : JNI_FALSE;
}
JNIEXPORT jboolean JNICALL
Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_autofocus(JNIEnv*, jobject)
{
return QCAR::CameraDevice::getInstance().setFocusMode(QCAR::CameraDevice::FOCUS_MODE_TRIGGERAUTO) ? JNI_TRUE : JNI_FALSE;
}
JNIEXPORT jboolean JNICALL
Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargets_setFocusMode(JNIEnv*, jobject, jint mode)
{
int qcarFocusMode;
switch ((int)mode)
{
case 0:
qcarFocusMode = QCAR::CameraDevice::FOCUS_MODE_NORMAL;
break;
case 1:
qcarFocusMode = QCAR::CameraDevice::FOCUS_MODE_CONTINUOUSAUTO;
break;
case 2:
qcarFocusMode = QCAR::CameraDevice::FOCUS_MODE_INFINITY;
break;
case 3:
qcarFocusMode = QCAR::CameraDevice::FOCUS_MODE_MACRO;
break;
default:
return JNI_FALSE;
}
return QCAR::CameraDevice::getInstance().setFocusMode(qcarFocusMode) ? JNI_TRUE : JNI_FALSE;
}
JNIEXPORT void JNICALL
Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargetsRenderer_initRendering(
JNIEnv* env, jobject obj)
{
LOG("Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargetsRenderer_initRendering");
// Define clear color
glClearColor(0.0f, 0.0f, 0.0f, QCAR::requiresAlpha() ? 0.0f : 1.0f);
// Now generate the OpenGL texture objects and add settings
for (int i = 0; i < textureCount; ++i)
{
glGenTextures(1, &(textures[i]->mTextureID));
glBindTexture(GL_TEXTURE_2D, textures[i]->mTextureID);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, textures[i]->mWidth,
textures[i]->mHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE,
(GLvoid*) textures[i]->mData);
}
#ifndef USE_OPENGL_ES_1_1
shaderProgramID = SampleUtils::createProgramFromBuffer(cubeMeshVertexShader,
cubeFragmentShader);
vertexHandle = glGetAttribLocation(shaderProgramID,
"vertexPosition");
normalHandle = glGetAttribLocation(shaderProgramID,
"vertexNormal");
textureCoordHandle = glGetAttribLocation(shaderProgramID,
"vertexTexCoord");
mvpMatrixHandle = glGetUniformLocation(shaderProgramID,
"modelViewProjectionMatrix");
texSampler2DHandle = glGetUniformLocation(shaderProgramID,
"texSampler2D");
#endif
}
JNIEXPORT void JNICALL
Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargetsRenderer_updateRendering(
JNIEnv* env, jobject obj, jint width, jint height)
{
LOG("Java_com_qualcomm_QCARSamples_ImageTargets_ImageTargetsRenderer_updateRendering");
// Update screen dimensions
screenWidth = width;
screenHeight = height;
// Reconfigure the video background
configureVideoBackground();
}
#ifdef __cplusplus
}
#endif