- fixed the hardware rendering precacher not to evict secondary layers of multi-layer textures.

It will now check all layers of a material.
Additionally it will also delete all descriptor sets of Vulkan hardware textures before precaching to make sure that nothing here can accidentally still reference a deleted texture.

src/rendering/vulkan/system/vk_framebuffer.cpp

@@ -672,6 +672,13 @@ void VulkanFrameBuffer::TextureFilterChanged()
 	}
 }
 
+void VulkanFrameBuffer::StartPrecaching()
+{
+	// Destroy the texture descriptors to avoid problems with potentially stale textures.
+	for (VkHardwareTexture *cur = VkHardwareTexture::First; cur; cur = cur->Next)
+		cur->ResetDescriptors();
+}
+
 void VulkanFrameBuffer::BlurScene(float amount)
 {
 	if (mPostprocess)

src/rendering/vulkan/system/vk_framebuffer.h

@@ -76,6 +76,7 @@ public:
 	sector_t *RenderView(player_t *player) override;
 	void SetTextureFilterMode() override;
 	void TextureFilterChanged() override;
+	void StartPrecaching() override;
 	void BeginFrame() override;
 	void BlurScene(float amount) override;
 	void PostProcessScene(int fixedcm, const std::function<void()> &afterBloomDrawEndScene2D) override;

src/rendering/vulkan/textures/vk_hwtexture.cpp

@@ -57,9 +57,6 @@ VkHardwareTexture::~VkHardwareTexture()
 	if (fb)
 	{
 		auto &deleteList = fb->FrameDeleteList;
-		for (auto &it : mDescriptorSets)
-			deleteList.Descriptors.push_back(std::move(it.second));
-		mDescriptorSets.clear();
 		if (mImage) deleteList.Images.push_back(std::move(mImage));
 		if (mImageView) deleteList.ImageViews.push_back(std::move(mImageView));
 		if (mStagingBuffer) deleteList.Buffers.push_back(std::move(mStagingBuffer));

src/rendering/vulkan/textures/vk_hwtexture.h

@@ -45,6 +45,12 @@ public:
 	VulkanImage *GetImage(FTexture *tex, int translation, int flags);
 	VulkanImageView *GetImageView(FTexture *tex, int translation, int flags);
 
+	static void ResetAllDescriptors()
+	{
+		for (VkHardwareTexture *cur = First; cur; cur = cur->Next)
+			cur->ResetDescriptors();
+	}
+
 private:
 	void CreateImage(FTexture *tex, int translation, int flags);