void MGLES2RendererPrivate::init()
{
m_initialized = true;
//init world matrix for the known parts
//parts that are changeable by the transformation
//are set when rendering in the textures
m_matWorld[0][2] = 0.0;
m_matWorld[1][2] = 0.0;
m_matWorld[2][0] = 0.0;
m_matWorld[2][1] = 0.0;
m_matWorld[2][2] = 1.0;
m_matWorld[2][3] = 0.0;
m_matWorld[3][2] = 0.0;
//init vertex and texcoord arrays, 4 first vertices are used to draw standard
//pixmaps and all the remaining vertices can be used to draw dynamic geometries
//like scalable images and other patched stuff, the vertices are packed into same
//array so that we don't need to switch the used array on fly.
m_vertices.resize(8 + (9 * 4 * 2));
m_texCoords.resize(8 + (9 * 4 * 2));
GLfloat *tc = m_texCoords.data();
tc[0] = 0.0; tc[1] = 1.0;
tc[2] = 0.0; tc[3] = 0.0;
tc[4] = 1.0; tc[5] = 0.0;
tc[6] = 1.0; tc[7] = 1.0;
//init index array that is used to draw dynamic geometries
//the indices are offset by 4 because the 4 vertices that
//are used to draw normal pixmaps are in the beginning of
//the array
m_indices.resize(9 * 6);
GLushort *indices = m_indices.data();
for (GLuint i = 0; i < 9; i++) {
indices[i*6+0] = 4 + (i * 4 + 0); //x1 y1 TL
indices[i*6+1] = 4 + (i * 4 + 1); //x1 y2 BL
indices[i*6+2] = 4 + (i * 4 + 2); //x2 y2 BR
indices[i*6+3] = 4 + (i * 4 + 0); //x1 y1 TL
indices[i*6+4] = 4 + (i * 4 + 2); //x2 y2 BR
indices[i*6+5] = 4 + (i * 4 + 3); //x2 y1 TR
}
m_glContext->makeCurrent();
//init the orthogonal projection matrix
//glOrtho(0, w, h, 0, -1, 1):
//2.0/w, 0.0, 0.0, -1.0
//0.0, -2.0/h, 0.0, 1.0
//0.0, 0.0, -1.0, 0.0
//0.0, 0.0, 0.0, 1.0
GLfloat w = m_glContext->device()->width();
GLfloat h = m_glContext->device()->height();
m_matProj[0][0] = 2.0f / w; m_matProj[1][0] = 0.0; m_matProj[2][0] = 0.0; m_matProj[3][0] = -1.0;
m_matProj[0][1] = 0.0; m_matProj[1][1] = -2.0f / h; m_matProj[2][1] = 0.0; m_matProj[3][1] = 1.0;
m_matProj[0][2] = 0.0; m_matProj[1][2] = 0.0; m_matProj[2][2] = -1.0; m_matProj[3][2] = 0.0;
m_matProj[0][3] = 0.0; m_matProj[1][3] = 0.0; m_matProj[2][3] = 0.0; m_matProj[3][3] = 1.0;
}
void SN_CheckerGL::doInit() {
if (!scene()) {
qCritical() << "SN_CheckerGL::doInit() : I'm not added to the scene yet";
}
QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext());
if (!ctx || ctx->device()->paintEngine()->type() != QPaintEngine::OpenGL2 ) {
qCritical() << "\n\n !! SN_CheckerGL::doInit() : no OpenGL context !!";
}
//
// init opengl related stuff
//
glGenTextures(1, &_textureid);
glDisable(GL_TEXTURE_2D);
glEnable(GL_TEXTURE_RECTANGLE_ARB);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, _textureid);
glTexParameterf(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameterf(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameterf(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
// internal format 2 -> the number of color components in the texture
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, _pixelFormat, _imgsize.width(), _imgsize.height(), 0, _pixelFormat, GL_UNSIGNED_BYTE, (void *)0 /*static_cast<QImage *>(doubleBuffer->getFrontBuffer())->bits()*/);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
glDisable(GL_TEXTURE_RECTANGLE_ARB);
glEnable(GL_TEXTURE_2D);
//
// init worker
//
_workerThread->setBufPtr(_image->bits()); // now worker is ready to work
// run the thread
_workerThread->start();
// writeData() will call itself continuously (as long as the eventloop of the thread is running)
// if ( ! QMetaObject::invokeMethod(_workerThread, "writeData", Qt::QueuedConnection) ) {
// qDebug() << "SN_CheckerGL::doInit() : Failed to invoke Worker::writeData()";
// }
scheduleUpdate();
}
void SN_CheckerGLPBO::doInit() {
if (!scene()) {
qCritical() << "SN_CheckerGLPBO::doInit() : I'm not added to the scene yet";
}
QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext());
if (!ctx || ctx->device()->paintEngine()->type() != QPaintEngine::OpenGL2 ) {
qCritical() << "\n\n !! SN_CheckerGLPBO::doInit() : no OpenGL context !!";
}
glGenTextures(1, &_textureid);
glDisable(GL_TEXTURE_2D);
glEnable(GL_TEXTURE_RECTANGLE_ARB);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, _textureid);
glTexParameterf(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameterf(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameterf(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
// internal format 2 -> the number of color components in the texture
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, _pixelFormat, _imgsize.width(), _imgsize.height(), 0, _pixelFormat, GL_UNSIGNED_BYTE, (void *)0 /*static_cast<QImage *>(doubleBuffer->getFrontBuffer())->bits()*/);
//glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, _pixelFormat, size().width(), size().height(), 0, _pixelFormat, GL_UNSIGNED_BYTE, (void *)0);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
glDisable(GL_TEXTURE_RECTANGLE_ARB);
glEnable(GL_TEXTURE_2D);
//
// init mutex
//
if ( ! _initPboMutex() ) {
qDebug() << "Failed to init mutex !";
}
_workerThread->setPboMutex(_pbomutex);
_workerThread->setPboCondition(_pbobufferready);
for(int i=0; i<2; i++) {
_pbobuf[i] = new QGLBuffer(QGLBuffer::PixelUnpackBuffer);
_pbobuf[i]->create();
_pbobuf[i]->bind();
_pbobuf[i]->allocate(_appInfo->frameSizeInByte());
_pboIds[i] = _pbobuf[i]->bufferId();
}
QGLBuffer::release(QGLBuffer::PixelUnpackBuffer);
// run the thread
_workerThread->start();
scheduleUpdate();
// writeData() will call itself continuously (as long as the eventloop of the thread is running)
// if ( ! QMetaObject::invokeMethod(_workerThread, "writeData", Qt::QueuedConnection) ) {
// qDebug() << "SN_CheckerGL::doInit() : Failed to invoke Worker::writeData()";
// }
}