Vulkan: Ensure rendering ends when deleting attached framebuffer

When a frame buffer that is attached is being deleted the rendering end
event will never happen which leads to inconsistent render graphs.

source/blender/gpu/vulkan/vk_context.cc

@@ -215,7 +215,9 @@ void VKContext::deactivate_framebuffer()
 {
   VKFrameBuffer *framebuffer = active_framebuffer_get();
   BLI_assert(framebuffer != nullptr);
-  framebuffer->rendering_end(*this);
+  if (framebuffer->is_rendering()) {
+    framebuffer->rendering_end(*this);
+  }
   active_fb = nullptr;
 }
 

source/blender/gpu/vulkan/vk_framebuffer.cc

@@ -37,6 +37,14 @@ VKFrameBuffer::VKFrameBuffer(const char *name)
   enabled_srgb_ = false;
 }
 
+VKFrameBuffer::~VKFrameBuffer()
+{
+  VKContext &context = *VKContext::get();
+  if (context.active_framebuffer_get() == this) {
+    context.deactivate_framebuffer();
+  }
+}
+
 /** \} */
 
 void VKFrameBuffer::bind(bool enabled_srgb)

source/blender/gpu/vulkan/vk_framebuffer.hh

@@ -44,6 +44,7 @@ class VKFrameBuffer : public FrameBuffer {
    * Create a conventional frame-buffer to attach texture to.
    */
   VKFrameBuffer(const char *name);
+  virtual ~VKFrameBuffer();
 
   void bind(bool enabled_srgb) override;
   bool check(char err_out[256]) override;