restored previous renderer iteration for porting

2019-10-31 20:06:11 +11:00
parent 77bcb70dac
commit 55f7d6aa8a
16 changed files with 502 additions and 118 deletions
@@ -0,0 +1,80 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#ifndef GLINSTANCE_H
+#define GLINSTANCE_H
+
+#include <QMatrix4x4>
+#include <QOffscreenSurface>
+#include <QOpenGLContext>
+
+#include "opengl/openglshader.h"
+#include "opengl/openglframebuffer.h"
+#include "render/rendermodes.h"
+#include "render/videoparams.h"
+
+/**
+ * @brief An object containing all resources necessary for each thread to support hardware accelerated rendering
+ *
+ * RenderInstance contains everything that Nodes will need to draw with on a per-thread basis.
+ *
+ * Due to its usage of QOffscreenSurface, a RenderInstance instance must be constructed in the main (GUI) thread. From
+ * there it is safe to call Start() on in another thread.
+ */
+class RenderInstance : public QObject
+{
+public:
+  RenderInstance(const VideoRenderingParams &params);
+
+  virtual ~RenderInstance() override;
+
+  Q_DISABLE_COPY_MOVE(RenderInstance)
+
+  void SetShareContext(QOpenGLContext* share);
+
+  bool Start();
+
+  void Stop();
+
+  bool IsStarted();
+
+  OpenGLFramebuffer* buffer();
+
+  QOpenGLContext* context();
+
+  const VideoRenderingParams& params() const;
+
+  OpenGLShaderPtr default_pipeline() const;
+
+private:
+  QOpenGLContext* ctx_;
+
+  QOpenGLContext* share_ctx_;
+
+  QOffscreenSurface surface_;
+
+  OpenGLFramebuffer buffer_;
+
+  VideoRenderingParams params_;
+
+  OpenGLShaderPtr default_pipeline_;
+};
+
+#endif // GLINSTANCE_H