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 #include <movit/resource_pool.h>
  11
  12 #include "glwidget.h"
  13
  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 {
  38 }
  39
  40 void GLWidget::clean_context()
  41 {
  42         if (resource_pool != nullptr) {
  43                 makeCurrent();
  44                 resource_pool->clean_context();
  45         }
  46 }
  47
  48 void GLWidget::initializeGL()
  49 {
  50         static once_flag flag;
  51         call_once(flag, [this]{
  52                 global_mixer = new Mixer(QGLFormat::toSurfaceFormat(format()), global_flags.num_cards);
  53                 global_mainwindow->mixer_created(global_mixer);
  54                 global_mixer->start();
  55         });
  56         global_mixer->set_frame_ready_callback(output, [this]{
  57                 QMetaObject::invokeMethod(this, "update", Qt::AutoConnection);
  58                 emit transition_names_updated(global_mixer->get_transition_names());
  59                 emit resolution_updated(output);
  60         });
  61
  62         glDisable(GL_BLEND);
  63         glDisable(GL_DEPTH_TEST);
  64         glDepthMask(GL_FALSE);
  65 }
  66
  67 void GLWidget::resizeGL(int width, int height)
  68 {
  69         glViewport(0, 0, width, height);
  70 }
  71
  72 void GLWidget::paintGL()
  73 {
  74         Mixer::DisplayFrame frame;
  75         if (!global_mixer->get_display_frame(output, &frame)) {
  76                 glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
  77                 check_error();
  78                 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  79                 check_error();
  80                 return;
  81         }
  82
  83         check_error();
  84         glWaitSync(frame.ready_fence.get(), /*flags=*/0, GL_TIMEOUT_IGNORED);
  85         check_error();
  86         frame.setup_chain();
  87         check_error();
  88         frame.chain->render_to_screen();
  89         check_error();
  90
  91         if (resource_pool == nullptr) {
  92                 resource_pool = frame.chain->get_resource_pool();
  93         } else {
  94                 assert(resource_pool == frame.chain->get_resource_pool());
  95         }
  96 }
  97
  98 void GLWidget::mousePressEvent(QMouseEvent *event)
  99 {
 100         emit clicked();
 101 }