void Plotter::Render()
{
if( track_front )
{
const float d = int_x[1] - log->x;
int_x[0] -= d;
int_x[1] -= d;
}
ActivateScissorAndClear();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(int_x[0], int_x[1], int_y[0], int_y[1]);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glPushAttrib(GL_ENABLE_BIT);
glEnable(GL_LINE_SMOOTH);
glDisable(GL_LIGHTING);
DrawTicks();
if( log && log->sequences.size() > 0 )
{
if( plot_mode==XY )
{
for( unsigned int s=0; s < log->sequences.size() / 2; ++s )
{
if( (s > 9) || show[s] )
{
glColor3fv(plot_colours[s%num_plot_colours]);
DrawSequence(log->sequences[2*s],log->sequences[2*s+1]);
}
}
}
else if( plot_mode==TIME_SERIES)
{
for( unsigned int s=0; s < log->sequences.size(); ++s )
{
if( (s > 9) || show[s] )
{
glColor3fv(plot_colours[s%num_plot_colours]);
DrawSequence(log->sequences[s]);
}
}
}
else if( plot_mode==STACKED_HISTOGRAM )
{
DrawSequenceHistogram(log->sequences);
}
else
{
assert(false);
}
}
if( mouse_state & MouseButtonLeft )
{
if( plot_mode==XY )
{
glColor3fv(colour_ms);
glBegin(GL_LINE_STRIP);
glVertex2f(mouse_xy[0],int_y[0]);
glVertex2f(mouse_xy[0],int_y[1]);
glEnd();
glBegin(GL_LINE_STRIP);
glVertex2f(int_x[0],mouse_xy[1]);
glVertex2f(int_x[1],mouse_xy[1]);
glEnd();
stringstream ss;
ss << "(" << mouse_xy[0] << "," << mouse_xy[1] << ")";
glColor3f(1.0,1.0,1.0);
OpenGlRenderState::ApplyWindowCoords();
glRasterPos2f( v.l+5,v.b+5 );
glutBitmapString(font,(unsigned char*)ss.str().c_str());
}else{
int xu = (int)mouse_xy[0];
glColor3fv(colour_ms);
glBegin(GL_LINE_STRIP);
glVertex2f(xu,int_y[0]);
glVertex2f(xu,int_y[1]);
glEnd();
stringstream ss;
glColor3f(1.0,1.0,1.0);
ss << "x=" << xu << " ";
OpenGlRenderState::ApplyWindowCoords();
int tx = v.l+5;
glRasterPos2f( tx,v.b+5 );
glutBitmapString(font,(unsigned char*)ss.str().c_str());
tx += glutBitmapLength(font,(unsigned char*)ss.str().c_str());
for( unsigned int s=0; s<log->sequences.size(); ++s )
{
if( (s > show_n || show[s]) && log->sequences[s].HasData(xu) )
{
stringstream ss;
ss << " " << log->sequences[s][xu];
glColor3fv(plot_colours[s%num_plot_colours]);
glRasterPos2f( tx,v.b+5 );
glutBitmapString(font,(unsigned char*)ss.str().c_str());
tx += glutBitmapLength(font,(unsigned char*)ss.str().c_str());
}
}
}
}
float ty = v.h-15;
for (size_t i=0; i<log->labels.size(); ++i)
{
glColor3fv(plot_colours[i%num_plot_colours]);
OpenGlRenderState::ApplyWindowCoords();
glRasterPos2f( v.l+5,ty);
glutBitmapString(font,(unsigned char*)log->labels[i].c_str());
ty -= 15;
}
glPopAttrib();
}
void Plotter::Render()
{
// Animate scroll / zooming
UpdateView();
#ifndef HAVE_GLES
glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_LINE_BIT);
#endif
glClearColor(colour_bg.r, colour_bg.g, colour_bg.b, colour_bg.a);
ActivateScissorAndClear();
// Try to create smooth lines
glDisable(GL_MULTISAMPLE);
glLineWidth(1.5);
glEnable(GL_LINE_SMOOTH);
glHint( GL_LINE_SMOOTH_HINT, GL_NICEST );
glEnable (GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_LIGHTING);
glDisable( GL_DEPTH_TEST );
const float w = rview.x.Size();
const float h = rview.y.Size();
const float ox = -rview.x.Mid();
const float oy = -rview.y.Mid();
const float sx = 2.0f / w;
const float sy = 2.0f / h;
//////////////////////////////////////////////////////////////////////////
// Draw ticks
prog_lines.SaveBind();
prog_lines.SetUniform("u_scale", sx, sy);
prog_lines.SetUniform("u_offset", ox, oy);
prog_lines.SetUniform("u_color", colour_tk );
const float min_space = 80.0;
int ta[2] = {1,1};
while(v.w * ta[0] *tick[0].val / w < min_space) ta[0] *=2;
while(v.h * ta[1] *tick[1].val / h < min_space) ta[1] *=2;
const float tdelta[2] = {
tick[0].val * ta[0],
tick[1].val * ta[1]
};
const int tx[2] = {
(int)ceil(rview.x.min / tdelta[0]),
(int)ceil(rview.x.max / tdelta[0])
};
const int ty[2] = {
(int)ceil(rview.y.min / tdelta[1]),
(int)ceil(rview.y.max / tdelta[1])
};
for( int i=tx[0]; i<tx[1]; ++i ) {
glDrawLine((i)*tdelta[0], rview.y.min, (i)*tdelta[0], rview.y.max);
}
for( int i=ty[0]; i<ty[1]; ++i ) {
glDrawLine(rview.x.min, (i)*tdelta[1], rview.x.max, (i)*tdelta[1]);
}
prog_lines.Unbind();
//////////////////////////////////////////////////////////////////////////
// Draw axis
prog_lines.SaveBind();
prog_lines.SetUniform("u_color", colour_ax );
glDrawLine(0, rview.y.min, 0, rview.y.max );
glDrawLine(rview.x.min,0, rview.x.max,0 );
prog_lines.Unbind();
//////////////////////////////////////////////////////////////////////////
// Draw Implicits
for(size_t i=0; i < plotimplicits.size(); ++i) {
PlotImplicit& im = plotimplicits[i];
im.prog.SaveBind();
im.prog.SetUniform("u_scale", sx, sy);
im.prog.SetUniform("u_offset", ox, oy);
glDrawRect(rview.x.min,rview.y.min,rview.x.max,rview.y.max);
im.prog.Unbind();
}
//////////////////////////////////////////////////////////////////////////
// Draw series
static size_t id_size = 0;
static float* id_array = 0;
for(size_t i=0; i < plotseries.size(); ++i)
{
PlotSeries& ps = plotseries[i];
GlSlProgram& prog = ps.prog;
ps.used = false;
prog.SaveBind();
prog.SetUniform("u_scale", sx, sy);
prog.SetUniform("u_offset", ox, oy);
prog.SetUniform("u_color", ps.colour );
// TODO: Try to skip drawing of blocks which aren't in view.
const DataLogBlock* block = ps.log ? ps.log->FirstBlock() : default_log->FirstBlock();
while(block) {
if(ps.contains_id ) {
if(id_size < block->Samples() ) {
// Create index array that we can bind
delete[] id_array;
id_size = block->MaxSamples();
id_array = new float[id_size];
for(size_t k=0; k < id_size; ++k) {
id_array[k] = (float)k;
}
}
prog.SetUniform("u_id_offset", (float)block->StartId() );
}
// Enable appropriate attributes
bool shouldRender = true;
for(size_t i=0; i< ps.attribs.size(); ++i) {
if(0 <= ps.attribs[i].plot_id && ps.attribs[i].plot_id < (int)block->Dimensions() ) {
glVertexAttribPointer(ps.attribs[i].location, 1, GL_FLOAT, GL_FALSE, (GLsizei)(block->Dimensions()*sizeof(float)), block->DimData(ps.attribs[i].plot_id) );
glEnableVertexAttribArray(ps.attribs[i].location);
}else if( ps.attribs[i].plot_id == -1 ){
glVertexAttribPointer(ps.attribs[i].location, 1, GL_FLOAT, GL_FALSE, 0, id_array );
glEnableVertexAttribArray(ps.attribs[i].location);
}else{
// bad id: don't render
shouldRender = false;
break;
}
}
if(shouldRender) {
// Draw geometry
glDrawArrays(ps.drawing_mode, 0, (GLsizei)block->Samples());
ps.used = true;
}
// Disable enabled attributes
for(size_t i=0; i< ps.attribs.size(); ++i) {
glDisableVertexAttribArray(ps.attribs[i].location);
}
block = block->NextBlock();
}
prog.Unbind();
}
prog_lines.SaveBind();
//////////////////////////////////////////////////////////////////////////
// Draw markers
glLineWidth(2.5f);
for( size_t i=0; i < plotmarkers.size(); ++i) {
const Marker& m = plotmarkers[i];
XYRangef draw_range = m.range;
draw_range.Clamp(rview);
prog_lines.SetUniform("u_color", m.colour );
if(draw_range.x.Size() == 0.0 || draw_range.y.Size() == 0.0) {
// Horizontal or Vertical line
glDrawLine(draw_range.x.min, draw_range.y.min, draw_range.x.max, draw_range.y.max );
}else{
// Region
glDrawRect(draw_range.x.min, draw_range.y.min, draw_range.x.max, draw_range.y.max );
}
}
//////////////////////////////////////////////////////////////////////////
// Draw hover / selection
glLineWidth(1.5f);
// hover over
prog_lines.SetUniform("u_color", colour_ax.WithAlpha(0.3f) );
glDrawLine(hover[0], rview.y.min, hover[0], rview.y.max );
glDrawLine(rview.x.min, hover[1], rview.x.max, hover[1] );
// range
prog_lines.SetUniform("u_color", colour_ax.WithAlpha(0.5) );
glDrawLine(selection.x.min, rview.y.min, selection.x.min, rview.y.max );
glDrawLine(selection.x.max, rview.y.min, selection.x.max, rview.y.max );
glDrawLine(rview.x.min, selection.y.min, rview.x.max, selection.y.min );
glDrawLine(rview.x.min, selection.y.max, rview.x.max, selection.y.max );
glDrawRect(selection.x.min, selection.y.min, selection.x.max, selection.y.max);
prog_lines.Unbind();
prog_text.SaveBind();
//////////////////////////////////////////////////////////////////////////
// Draw Key
prog_text.SetUniform("u_scale", 2.0f / v.w, 2.0f / v.h);
int keyid = 0;
for(size_t i=0; i < plotseries.size(); ++i)
{
PlotSeries& ps = plotseries[i];
if(ps.used) {
prog_text.SetUniform("u_color", ps.colour );
prog_text.SetUniform("u_offset",
v.w-5-ps.title.Width() -(v.w/2.0f),
v.h-15*(++keyid) -(v.h/2.0f)
);
ps.title.DrawGlSl();
}
}
//////////////////////////////////////////////////////////////////////////
// Draw axis text
prog_text.SetUniform("u_scale", 2.0f / v.w, 2.0f / v.h);
prog_text.SetUniform("u_color", colour_ax );
for( int i=tx[0]; i<tx[1]; ++i ) {
std::ostringstream oss;
oss << i*tdelta[0]*tick[0].factor << tick[0].symbol;
GlText txt = GlFont::I().Text(oss.str().c_str());
float sx = v.w*((i)*tdelta[0]-rview.x.Mid())/w - txt.Width()/2.0f;
prog_text.SetUniform("u_offset", sx, 15 -v.h/2.0f );
txt.DrawGlSl();
}
for( int i=ty[0]; i<ty[1]; ++i ) {
std::ostringstream oss;
oss << i*tdelta[1]*tick[1].factor << tick[1].symbol;
GlText txt = GlFont::I().Text(oss.str().c_str());
float sy = v.h*((i)*tdelta[1]-rview.y.Mid())/h - txt.Height()/2.0f;
prog_text.SetUniform("u_offset", 15 -v.w/2.0f, sy );
txt.DrawGlSl();
}
prog_text.Unbind();
glLineWidth(1.0f);
#ifndef HAVE_GLES
glPopAttrib();
#endif
}