From 6630b1106493e5a072a9a9f212f0d00648dbedd4 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 20 Nov 2021 00:39:53 +0200
Subject: [PATCH] Check if render target is swapchain and set to_present
 accordingly

---
 source/backends/vulkan/commands_backend.cpp    | 9 +++++++--
 source/backends/vulkan/framebuffer_backend.cpp | 5 +++++
 source/backends/vulkan/framebuffer_backend.h   | 2 ++
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/source/backends/vulkan/commands_backend.cpp b/source/backends/vulkan/commands_backend.cpp
index 684f0a47..1634863b 100644
--- a/source/backends/vulkan/commands_backend.cpp
+++ b/source/backends/vulkan/commands_backend.cpp
@@ -9,6 +9,7 @@
 #include "pipelinestate.h"
 #include "rect.h"
 #include "semaphore.h"
+#include "swapchaintexture.h"
 #include "vulkan.h"
 
 using namespace std;
@@ -68,8 +69,12 @@ void VulkanCommands::begin_render_pass(bool clear, const ClearValue *clear_value
 
 	device.get_transfer_queue().dispatch_transfers(current_buffer);
 
-	// TODO Use proper value for to_present
-	VkRenderPass render_pass = device.get_pipeline_cache().get_render_pass(target->get_format(), clear, !clear_values, true);
+	bool to_present = false;
+	unsigned n_attachments = target->get_format().size();
+	for(unsigned i=0; i<n_attachments; ++i)
+		if(dynamic_cast<const SwapChainTexture *>(target->VulkanFramebuffer::get_attachment(i)))
+			to_present = true;
+	VkRenderPass render_pass = device.get_pipeline_cache().get_render_pass(target->get_format(), clear, !clear_values, to_present);
 
 	target->refresh();
 
diff --git a/source/backends/vulkan/framebuffer_backend.cpp b/source/backends/vulkan/framebuffer_backend.cpp
index 96653fe1..52857351 100644
--- a/source/backends/vulkan/framebuffer_backend.cpp
+++ b/source/backends/vulkan/framebuffer_backend.cpp
@@ -48,6 +48,11 @@ bool VulkanFramebuffer::is_format_supported(const FrameFormat &fmt)
 	return true;
 }
 
+const Texture *VulkanFramebuffer::get_attachment(unsigned i) const
+{
+	return static_cast<const Framebuffer *>(this)->attachments[i].tex;
+}
+
 void VulkanFramebuffer::update(unsigned) const
 {
 	const Framebuffer &self = *static_cast<const Framebuffer *>(this);
diff --git a/source/backends/vulkan/framebuffer_backend.h b/source/backends/vulkan/framebuffer_backend.h
index ff15c0d5..cb110042 100644
--- a/source/backends/vulkan/framebuffer_backend.h
+++ b/source/backends/vulkan/framebuffer_backend.h
@@ -9,6 +9,7 @@ namespace Msp {
 namespace GL {
 
 class Device;
+class Texture;
 
 class VulkanFramebuffer: public NonCopyable
 {
@@ -27,6 +28,7 @@ protected:
 	bool is_format_supported(const FrameFormat &);
 	static void require_layered() { }
 
+	const Texture *get_attachment(unsigned) const;
 	void update(unsigned) const;
 	void require_complete() const { }
 
-- 
2.43.0