scopes: don't use shared context

OpenGL shared contexts (through Qt at least) seem to be buggy. Scopes have been
shifted to a non-shared approach as a result.

app/render/backend/opengl/openglproxy.cpp

@@ -132,7 +132,7 @@ void OpenGLProxy::FrameToValue(FramePtr frame, StreamPtr stream, NodeValueTable*
 
     VideoRenderingParams footage_params(frame->width(), frame->height(), frame->format());
 
-    footage_tex_ref = texture_cache_.Get(ctx_, footage_params, frame->data(), frame->linesize_pixels());
+    footage_tex_ref = texture_cache_.Get(ctx_, footage_params, frame);
 
     if (ocio_method == ColorManager::kOCIOFast) {
       if (!color_processor->IsEnabled()) {

app/render/backend/opengl/opengltexture.cpp

@@ -74,6 +74,11 @@ void OpenGLTexture::Create(QOpenGLContext *ctx, int width, int height, const Pix
 }
 
 void OpenGLTexture::Create(QOpenGLContext *ctx, FramePtr frame)
+{
+  Create(ctx, frame.get());
+}
+
+void OpenGLTexture::Create(QOpenGLContext *ctx, Frame *frame)
 {
   Create(ctx, frame->width(), frame->height(), frame->format(), frame->data(), frame->linesize_pixels());
 }
@@ -120,6 +125,16 @@ const GLuint &OpenGLTexture::texture() const
   return texture_;
 }
 
+void OpenGLTexture::Upload(FramePtr frame)
+{
+  Upload(frame.get());
+}
+
+void OpenGLTexture::Upload(Frame *frame)
+{
+  Upload(frame->data(), frame->linesize_pixels());
+}
+
 void OpenGLTexture::Upload(const void *data, int linesize)
 {
   if (!IsCreated()) {

app/render/backend/opengl/opengltexture.h

@@ -44,6 +44,7 @@ public:
   void Create(QOpenGLContext* ctx, int width, int height, const PixelFormat::Format &format, const void *data, int linesize);
   void Create(QOpenGLContext* ctx, int width, int height, const PixelFormat::Format &format);
   void Create(QOpenGLContext* ctx, FramePtr frame);
+  void Create(QOpenGLContext* ctx, Frame* frame);
 
   bool IsCreated() const;
 
@@ -59,6 +60,8 @@ public:
 
   const GLuint& texture() const;
 
+  void Upload(FramePtr frame);
+  void Upload(Frame* frame);
   void Upload(const void *data, int linesize);
 
 public slots:

app/render/backend/opengl/opengltexturecache.cpp

@@ -29,6 +29,16 @@ OpenGLTextureCache::~OpenGLTextureCache()
   }
 }
 
+OpenGLTextureCache::ReferencePtr OpenGLTextureCache::Get(QOpenGLContext *ctx, const VideoRenderingParams &params, FramePtr frame)
+{
+  return Get(ctx, params, frame.get());
+}
+
+OpenGLTextureCache::ReferencePtr OpenGLTextureCache::Get(QOpenGLContext *ctx, const VideoRenderingParams &params, Frame *frame)
+{
+  return Get(ctx, params, frame->data(), frame->linesize_pixels());
+}
+
 OpenGLTextureCache::ReferencePtr OpenGLTextureCache::Get(QOpenGLContext* ctx, const VideoRenderingParams &params, const void *data, int linesize)
 {
   OpenGLTexturePtr texture = nullptr;

app/render/backend/opengl/opengltexturecache.h

@@ -57,6 +57,8 @@ public:
 
   DISABLE_COPY_MOVE(OpenGLTextureCache)
 
+  ReferencePtr Get(QOpenGLContext *ctx, const VideoRenderingParams& params, FramePtr frame);
+  ReferencePtr Get(QOpenGLContext *ctx, const VideoRenderingParams& params, Frame* frame);
   ReferencePtr Get(QOpenGLContext *ctx, const VideoRenderingParams& params, const void *data, int linesize);
   ReferencePtr Get(QOpenGLContext *ctx, const VideoRenderingParams& params);