void VirtualEnvironmentHandleARViewDrawPreCamera(void)
{
if (!VirtualEnvironment_AROSG)
return;
#ifdef USE_OPENGL_ES
// Set some state to OSG's expected values.
glStateCacheDisableLighting();
glStateCacheDisableTex2D();
glStateCacheDisableBlend();
glStateCacheEnableClientStateVertexArray();
glStateCacheEnableClientStateNormalArray();
glStateCacheEnableClientStateTexCoordArray();
#endif
// Save the projection and modelview state.
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
// Draw the whole scenegraph.
arOSGDraw(VirtualEnvironment_AROSG);
// OSG modifies the viewport, so restore it.
// Also restore projection and modelview.
glViewport(viewPort[viewPortIndexLeft], viewPort[viewPortIndexBottom], viewPort[viewPortIndexWidth], viewPort[viewPortIndexHeight]);
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
#ifdef USE_OPENGL_ES
// Flush the state cache and ensure depth testing is enabled.
glStateCacheFlush();
glStateCacheEnableDepthTest();
#else
// Ensure depth testing is re-enabled.
glEnable(GL_DEPTH_TEST);
#endif
}
JNIEXPORT void JNICALL JNIFUNCTION_NATIVE(nativeDrawFrame(JNIEnv* env, jobject obj, jint movieWidth, jint movieHeight, jint movieTextureID, jfloatArray movieTextureMtx))
{
float width, height;
// Get the array contents.
//jsize movieTextureMtxLen = env->GetArrayLength(movieTextureMtx);
float movieTextureMtxUnpacked[16];
env->GetFloatArrayRegion(movieTextureMtx, 0, /*movieTextureMtxLen*/ 16, movieTextureMtxUnpacked);
if (!videoInited) {
#ifdef DEBUG
LOGI("nativeDrawFrame !VIDEO\n");
#endif
return; // No point in trying to draw until video is inited.
}
if (!nftDataLoaded && nftDataLoadingThreadHandle) {
// Check if NFT data loading has completed.
if (threadGetStatus(nftDataLoadingThreadHandle) > 0) {
nftDataLoaded = true;
threadWaitQuit(nftDataLoadingThreadHandle);
threadFree(&nftDataLoadingThreadHandle); // Clean up.
} else {
#ifdef DEBUG
LOGI("nativeDrawFrame !NFTDATA\n");
#endif
return; // No point in trying to draw until NFT data is loaded.
}
}
#ifdef DEBUG
LOGI("nativeDrawFrame\n");
#endif
if (!gARViewInited) {
if (!initARView()) return;
}
if (gARViewLayoutRequired) layoutARView();
// Upload new video frame if required.
if (videoFrameNeedsPixelBufferDataUpload) {
pthread_mutex_lock(&gVideoFrameLock);
arglPixelBufferDataUploadBiPlanar(gArglSettings, gVideoFrame, gVideoFrame + videoWidth*videoHeight);
videoFrameNeedsPixelBufferDataUpload = false;
pthread_mutex_unlock(&gVideoFrameLock);
}
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear the buffers for new frame.
// Display the current frame
arglDispImage(gArglSettings);
// Set up 3D mode.
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(cameraLens);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glStateCacheEnableDepthTest();
// Set any initial per-frame GL state you require here.
// --->
// Lighting and geometry that moves with the camera should be added here.
// (I.e. should be specified before camera pose transform.)
// --->
// Draw an object on all valid markers.
for (int i = 0; i < markersNFTCount; i++) {
if (markersNFT[i].valid) {
glLoadMatrixf(markersNFT[i].pose.T);
//
// Draw a rectangular surface textured with the movie texture.
//
float w = 80.0f;
float h = w * (float)movieHeight/(float)movieWidth;
GLfloat vertices[4][2] = { {0.0f, 0.0f}, {w, 0.0f}, {w, h}, {0.0f, h} };
GLfloat normals[4][3] = { {0.0f, 0.0f, 1.0f}, {0.0f, 0.0f, 1.0f}, {0.0f, 0.0f, 1.0f}, {0.0f, 0.0f, 1.0f} };
GLfloat texcoords[4][2] = { {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f} };
glStateCacheActiveTexture(GL_TEXTURE0);
glMatrixMode(GL_TEXTURE);
glPushMatrix();
glLoadMatrixf(movieTextureMtxUnpacked);
glMatrixMode(GL_MODELVIEW);
glVertexPointer(2, GL_FLOAT, 0, vertices);
glNormalPointer(GL_FLOAT, 0, normals);
glStateCacheClientActiveTexture(GL_TEXTURE0);
glTexCoordPointer(2, GL_FLOAT, 0, texcoords);
glStateCacheEnableClientStateVertexArray();
glStateCacheEnableClientStateNormalArray();
glStateCacheEnableClientStateTexCoordArray();
glStateCacheBindTexture2D(0);
glStateCacheDisableTex2D();
glStateCacheDisableLighting();
glEnable(GL_TEXTURE_EXTERNAL_OES);
glBindTexture(GL_TEXTURE_EXTERNAL_OES, movieTextureID);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glBindTexture(GL_TEXTURE_EXTERNAL_OES, 0);
glDisable(GL_TEXTURE_EXTERNAL_OES);
glMatrixMode(GL_TEXTURE);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
//
// End.
//
}
}
if (cameraPoseValid) {
glMultMatrixf(cameraPose);
// All lighting and geometry to be drawn in world coordinates goes here.
// --->
}
// If you added external OpenGL code above, and that code doesn't use the glStateCache routines,
// then uncomment the line below.
//glStateCacheFlush();
// Set up 2D mode.
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
width = (float)viewPort[viewPortIndexWidth];
height = (float)viewPort[viewPortIndexHeight];
glOrthof(0.0f, width, 0.0f, height, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glStateCacheDisableDepthTest();
// Add your own 2D overlays here.
// --->
// If you added external OpenGL code above, and that code doesn't use the glStateCache routines,
// then uncomment the line below.
//glStateCacheFlush();
#ifdef DEBUG
// Example of 2D drawing. It just draws a white border line. Change the 0 to 1 to enable.
const GLfloat square_vertices [4][2] = { {0.5f, 0.5f}, {0.5f, height - 0.5f}, {width - 0.5f, height - 0.5f}, {width - 0.5f, 0.5f} };
glStateCacheDisableLighting();
glStateCacheDisableTex2D();
glVertexPointer(2, GL_FLOAT, 0, square_vertices);
glStateCacheEnableClientStateVertexArray();
glColor4ub(255, 255, 255, 255);
glDrawArrays(GL_LINE_LOOP, 0, 4);
CHECK_GL_ERROR();
#endif
}