git.sesse.net Git - nageru/blob - glwidget.cpp

   1 #include <qmetatype.h>  // Needs to come before egl.h.
   2 #include <qdatastream.h>  // Needs to come before egl.h.
   3 #include <qtextstream.h>  // Needs to come before egl.h.
   4 #include <qcursor.h>  // Needs to come before egl.h.
   5 #include <qcoreevent.h>  // Needs to come before egl.h.
   6 #include <qevent.h>  // Needs to come before egl.h.
   7 #include <epoxy/gl.h>
   8 #include <epoxy/egl.h>
   9 #include <QSurfaceFormat>
  10
  11 #include "glwidget.h"
  12 #include "mainwindow.h"
  13
  14 #include <movit/resource_pool.h>
  15 #include <stdio.h>
  16 #include <mutex>
  17
  18 #include "context.h"
  19 #include "flags.h"
  20 #include "mixer.h"
  21 #include "ref_counted_gl_sync.h"
  22 #include "vumeter.h"
  23
  24 class MainWindow;
  25 class QSurface;
  26 class QWidget;
  27
  28 #undef Success
  29 #include <movit/util.h>
  30 #include <string>
  31
  32 using namespace std;
  33
  34 GLWidget::GLWidget(QWidget *parent)
  35     : QGLWidget(parent, global_share_widget),
  36       resource_pool(new movit::ResourcePool)
  37 {
  38 }
  39
  40 GLWidget::~GLWidget()
  41 {
  42 }
  43
  44 void GLWidget::initializeGL()
  45 {
  46         printf("egl context=%p\n", eglGetCurrentContext());
  47         //printf("threads: %p %p\n", QThread::currentThread(), qGuiApp->thread());
  48
  49         static std::once_flag flag;
  50         std::call_once(flag, [this]{
  51                 global_mixer = new Mixer(QGLFormat::toSurfaceFormat(format()), global_flags.num_cards);
  52                 global_mainwindow->mixer_created(global_mixer);
  53                 global_mixer->start();
  54         });
  55         global_mixer->set_frame_ready_callback(output, [this]{
  56                 QMetaObject::invokeMethod(this, "update", Qt::AutoConnection);
  57                 emit transition_names_updated(global_mixer->get_transition_names());
  58         });
  59
  60         glDisable(GL_BLEND);
  61         glDisable(GL_DEPTH_TEST);
  62         glDepthMask(GL_FALSE);
  63 }
  64
  65 void GLWidget::resizeGL(int width, int height)
  66 {
  67         glViewport(0, 0, width, height);
  68 }
  69
  70 void GLWidget::paintGL()
  71 {
  72         Mixer::DisplayFrame frame;
  73         if (!global_mixer->get_display_frame(output, &frame)) {
  74                 glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
  75                 check_error();
  76                 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  77                 check_error();
  78                 return;
  79         }
  80
  81         check_error();
  82         glWaitSync(frame.ready_fence.get(), /*flags=*/0, GL_TIMEOUT_IGNORED);
  83         check_error();
  84         frame.setup_chain();
  85         check_error();
  86         frame.chain->render_to_screen();
  87         check_error();
  88 }
  89
  90 void GLWidget::mousePressEvent(QMouseEvent *event)
  91 {
  92         emit clicked();
  93 }