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