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