From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 1 Sep 2022 19:46:47 +0000 (+0300)
Subject: Add flag for tessellation shaders in Vulkan context
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgui.git;a=commitdiff_plain;h=fc345700e4d49b85e6d1029e8a0f5f442bc5280d

Add flag for tessellation shaders in Vulkan context
---

diff --git a/source/graphics/vkxlib/vulkancontext.cpp b/source/graphics/vkxlib/vulkancontext.cpp
index ccd9a1e..f253499 100644
--- a/source/graphics/vkxlib/vulkancontext.cpp
+++ b/source/graphics/vkxlib/vulkancontext.cpp
@@ -64,7 +64,8 @@ string vulkan_error::get_error_message(unsigned code)
 VulkanOptions::VulkanOptions():
 	enable_validation(false),
 	enable_debug_report(false),
-	enable_geometry_shader(false)
+	enable_geometry_shader(false),
+	enable_tessellation_shader(false)
 { }
 
 
@@ -200,6 +201,7 @@ void VulkanContext::platform_init(const VulkanOptions &opts)
 
 		VkPhysicalDeviceFeatures features = { };
 		features.geometryShader = (opts.enable_geometry_shader ? VK_TRUE : VK_FALSE);
+		features.tessellationShader = (opts.enable_tessellation_shader ? VK_TRUE : VK_FALSE);
 
 		VkDeviceCreateInfo device_create_info = { };
 		device_create_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
diff --git a/source/graphics/vulkancontext.h b/source/graphics/vulkancontext.h
index f80f5cb..666a2b0 100644
--- a/source/graphics/vulkancontext.h
+++ b/source/graphics/vulkancontext.h
@@ -25,6 +25,7 @@ struct VulkanOptions
 	bool enable_validation;
 	bool enable_debug_report;
 	bool enable_geometry_shader;
+	bool enable_tessellation_shader;
 
 	VulkanOptions();
 };