Vulkan rendering support on Android

.gitignore

@@ -21,6 +21,7 @@ project.properties
 platform/android/java/lib/.cxx/
 platform/android/java/libs/*
 platform/android/java/app/libs/*
+platform/android/java/lib/.cxx/*
 
 # General c++ generated files
 *.lib

drivers/vulkan/SCsub

@@ -4,7 +4,17 @@ Import("env")
 
 env.add_source_files(env.drivers_sources, "*.cpp")
 
-if env["builtin_vulkan"]:
+if env["platform"] == "android":
+    # Use NDK Vulkan headers
+    thirdparty_dir = env["ANDROID_NDK_ROOT"] + "/sources/third_party/vulkan/src"
+    thirdparty_includes = [
+        thirdparty_dir,
+        thirdparty_dir + "/include",
+        thirdparty_dir + "/layers",
+        thirdparty_dir + "/layers/generated",
+    ]
+    env.Prepend(CPPPATH=thirdparty_includes)
+elif env["builtin_vulkan"]:
     # Use bundled Vulkan headers
     thirdparty_dir = "#thirdparty/vulkan"
     env.Prepend(CPPPATH=[thirdparty_dir, thirdparty_dir + "/include", thirdparty_dir + "/loader"])

drivers/vulkan/rendering_device_vulkan.cpp

@@ -1564,15 +1564,20 @@ RID RenderingDeviceVulkan::texture_create(const TextureFormat &p_format, const T
 	image_create_info.pNext = nullptr;
 	image_create_info.flags = 0;
 
-	VkImageFormatListCreateInfoKHR format_list_create_info;
-	Vector<VkFormat> allowed_formats;
-
+#ifndef _MSC_VER
+#warning TODO check for support via RenderingDevice to enable on mobile when possible
+#endif
+	// vkCreateImage fails with format list on Android (VK_ERROR_OUT_OF_HOST_MEMORY)
+#ifndef ANDROID_ENABLED
 	if (p_format.shareable_formats.size()) {
 		image_create_info.flags |= VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT;
+
+		Vector<VkFormat> allowed_formats;
 		for (int i = 0; i < p_format.shareable_formats.size(); i++) {
 			allowed_formats.push_back(vulkan_formats[p_format.shareable_formats[i]]);
 		}
 
+		VkImageFormatListCreateInfoKHR format_list_create_info;
 		format_list_create_info.sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_LIST_CREATE_INFO_KHR;
 		format_list_create_info.pNext = nullptr;
 		format_list_create_info.viewFormatCount = allowed_formats.size();
@@ -1584,6 +1589,7 @@ RID RenderingDeviceVulkan::texture_create(const TextureFormat &p_format, const T
 		ERR_FAIL_COND_V_MSG(p_view.format_override != DATA_FORMAT_MAX && p_format.shareable_formats.find(p_view.format_override) == -1, RID(),
 				"If supplied a list of shareable formats, the current view format override must be present in the list");
 	}
+#endif
 	if (p_format.type == TEXTURE_TYPE_CUBE || p_format.type == TEXTURE_TYPE_CUBE_ARRAY) {
 		image_create_info.flags |= VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
 	}

drivers/vulkan/rendering_device_vulkan.h

@@ -37,8 +37,10 @@
 #include "servers/rendering/rendering_device.h"
 
 #ifdef DEBUG_ENABLED
+#ifndef _DEBUG
 #define _DEBUG
 #endif
+#endif
 #include "vk_mem_alloc.h"
 #include <vulkan/vulkan.h>
 //todo:

drivers/vulkan/vulkan_context.h

@@ -45,8 +45,6 @@ class VulkanContext {
 		FRAME_LAG = 2
 	};
 
-	bool use_validation_layers;
-
 	VkInstance inst;
 	VkSurfaceKHR surface;
 	VkPhysicalDevice gpu;
@@ -181,6 +179,8 @@ class VulkanContext {
 
 	bool buffers_prepared;
 
+	bool use_validation_layers;
+
 public:
 	VkDevice get_device();
 	VkPhysicalDevice get_physical_device();

platform/android/SCsub

@@ -17,8 +17,8 @@ android_files = [
     "java_godot_io_wrapper.cpp",
     "jni_utils.cpp",
     "android_keys_utils.cpp",
-    "vulkan/vk_renderer_jni.cpp",
-    "plugin/godot_plugin_jni.cpp",
+    "display_server_android.cpp",
+    "vulkan/vulkan_context_android.cpp",
 ]
 
 env_android = env.Clone()

platform/android/detect.py

@@ -25,7 +25,7 @@ def get_opts():
 
     return [
         ("ANDROID_NDK_ROOT", "Path to the Android NDK", os.environ.get("ANDROID_NDK_ROOT", 0)),
-        ("ndk_platform", 'Target platform (android-<api>, e.g. "android-18")', "android-18"),
+        ("ndk_platform", 'Target platform (android-<api>, e.g. "android-24")', "android-24"),
         EnumVariable("android_arch", "Target architecture", "armv7", ("armv7", "arm64v8", "x86", "x86_64")),
         BoolVariable("android_neon", "Enable NEON support (armv7 only)", True),
     ]
@@ -102,7 +102,7 @@ def mySpawn(sh, escape, cmd, args, env):
     neon_text = ""
     if env["android_arch"] == "armv7" and env["android_neon"]:
         neon_text = " (with NEON)"
-    print("Building for Android (" + env["android_arch"] + ")" + neon_text)
+    print("Building for Android, platform " + env["ndk_platform"] + " (" + env["android_arch"] + ")" + neon_text)
 
     can_vectorize = True
     if env["android_arch"] == "x86":
@@ -314,8 +314,8 @@ def mySpawn(sh, escape, cmd, args, env):
     )
 
     env.Prepend(CPPPATH=["#platform/android"])
-    env.Append(CPPDEFINES=["ANDROID_ENABLED", "UNIX_ENABLED", "NO_FCNTL"])
-    env.Append(LIBS=["OpenSLES", "EGL", "GLESv3", "GLESv2", "android", "log", "z", "dl"])
+    env.Append(CPPDEFINES=["ANDROID_ENABLED", "UNIX_ENABLED", "VULKAN_ENABLED", "NO_FCNTL"])
+    env.Append(LIBS=["OpenSLES", "EGL", "GLESv2", "vulkan", "android", "log", "z", "dl"])
 
 
 # Return NDK version string in source.properties (adapted from the Chromium project).