From 9d792f79f1629d97b89b16044f7b875f1a311560 Mon Sep 17 00:00:00 2001
From: Magnus Norddahl <dpjudas@users.noreply.github.com>
Date: Sun, 3 Mar 2019 14:32:03 +0100
Subject: [PATCH] - add vulkan info to startup log

---
 src/rendering/vulkan/system/vk_device.cpp     |  3 --
 src/rendering/vulkan/system/vk_device.h       |  2 +
 .../vulkan/system/vk_framebuffer.cpp          | 41 +++++++++++++++++++
 src/rendering/vulkan/system/vk_framebuffer.h  |  1 +
 4 files changed, 44 insertions(+), 3 deletions(-)

diff --git a/src/rendering/vulkan/system/vk_device.cpp b/src/rendering/vulkan/system/vk_device.cpp
index 176045054..eaf966158 100644
--- a/src/rendering/vulkan/system/vk_device.cpp
+++ b/src/rendering/vulkan/system/vk_device.cpp
@@ -290,10 +290,7 @@ void VulkanDevice::selectPhysicalDevice()
 
 	for (const auto &device : devices)
 	{
-		VkPhysicalDeviceProperties deviceProperties;
 		vkGetPhysicalDeviceProperties(device, &deviceProperties);
-
-		VkPhysicalDeviceFeatures deviceFeatures;
 		vkGetPhysicalDeviceFeatures(device, &deviceFeatures);
 
 		bool isUsableDevice = deviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU && deviceFeatures.geometryShader && deviceFeatures.samplerAnisotropy;
diff --git a/src/rendering/vulkan/system/vk_device.h b/src/rendering/vulkan/system/vk_device.h
index 6beeb6554..ad124151b 100644
--- a/src/rendering/vulkan/system/vk_device.h
+++ b/src/rendering/vulkan/system/vk_device.h
@@ -44,6 +44,8 @@ public:
 	std::vector<VkLayerProperties> availableLayers;
 	std::vector<VkExtensionProperties> extensions;
 	std::vector<VkExtensionProperties> availableDeviceExtensions;
+	VkPhysicalDeviceProperties deviceProperties;
+	VkPhysicalDeviceFeatures deviceFeatures;
 
 	uint32_t findMemoryType(uint32_t typeFilter, VkMemoryPropertyFlags properties);
 
diff --git a/src/rendering/vulkan/system/vk_framebuffer.cpp b/src/rendering/vulkan/system/vk_framebuffer.cpp
index 4cf1fb483..a464a8589 100644
--- a/src/rendering/vulkan/system/vk_framebuffer.cpp
+++ b/src/rendering/vulkan/system/vk_framebuffer.cpp
@@ -88,6 +88,13 @@ VulkanFrameBuffer::~VulkanFrameBuffer()
 
 void VulkanFrameBuffer::InitializeState()
 {
+	static bool first = true;
+	if (first)
+	{
+		PrintStartupLog();
+		first = false;
+	}
+
 	gl_vendorstring = "Vulkan";
 	hwcaps = RFL_SHADER_STORAGE_BUFFER | RFL_BUFFER_STORAGE;
 
@@ -573,3 +580,37 @@ VulkanCommandBuffer *VulkanFrameBuffer::GetDrawCommands()
 	}
 	return mDrawCommands.get();
 }
+
+void VulkanFrameBuffer::PrintStartupLog()
+{
+	FString deviceType;
+	switch (device->deviceProperties.deviceType)
+	{
+	case VK_PHYSICAL_DEVICE_TYPE_OTHER: deviceType = "other"; break;
+	case VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU: deviceType = "integrated gpu"; break;
+	case VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU: deviceType = "discrete gpu"; break;
+	case VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU: deviceType = "virtual gpu"; break;
+	case VK_PHYSICAL_DEVICE_TYPE_CPU: deviceType = "cpu"; break;
+	default: deviceType.Format("%d", (int)device->deviceProperties.deviceType); break;
+	}
+
+	FString apiVersion, driverVersion;
+	apiVersion.Format("%d.%d.%d", VK_VERSION_MAJOR(device->deviceProperties.apiVersion), VK_VERSION_MINOR(device->deviceProperties.apiVersion), VK_VERSION_PATCH(device->deviceProperties.apiVersion));
+	driverVersion.Format("%d.%d.%d", VK_VERSION_MAJOR(device->deviceProperties.apiVersion), VK_VERSION_MINOR(device->deviceProperties.apiVersion), VK_VERSION_PATCH(device->deviceProperties.apiVersion));
+
+	Printf("Vulkan device: %s\n", device->deviceProperties.deviceName);
+	Printf("Vulkan device type: %s\n", deviceType.GetChars());
+	Printf("Vulkan version: %s (api) %s (driver)\n", apiVersion.GetChars(), driverVersion.GetChars());
+
+	Printf(PRINT_LOG, "Vulkan extensions:");
+	for (const VkExtensionProperties &p : device->availableDeviceExtensions)
+	{
+		Printf(PRINT_LOG, " %s", p.extensionName);
+	}
+	Printf(PRINT_LOG, "\n");
+
+	const auto &limits = device->deviceProperties.limits;
+	Printf("Max. texture size: %d\n", limits.maxImageDimension2D);
+	Printf("Max. uniform buffer range: %d\n", limits.maxUniformBufferRange);
+	Printf("Min. uniform buffer offset alignment: %d\n", limits.minUniformBufferOffsetAlignment);
+}
diff --git a/src/rendering/vulkan/system/vk_framebuffer.h b/src/rendering/vulkan/system/vk_framebuffer.h
index a5dea6ef7..3d2fb98d3 100644
--- a/src/rendering/vulkan/system/vk_framebuffer.h
+++ b/src/rendering/vulkan/system/vk_framebuffer.h
@@ -75,6 +75,7 @@ public:
 private:
 	sector_t *RenderViewpoint(FRenderViewpoint &mainvp, AActor * camera, IntRect * bounds, float fov, float ratio, float fovratio, bool mainview, bool toscreen);
 	void DrawScene(HWDrawInfo *di, int drawmode);
+	void PrintStartupLog();
 
 	std::unique_ptr<VkShaderManager> mShaderManager;
 	std::unique_ptr<VkSamplerManager> mSamplerManager;