Import initial work on Android frontend

2024-11-22 21:39:40 +00:00 · 2019-11-29 00:17:24 +10:00 · 2019-11-29 00:17:24 +10:00 · ea35c5f3bc
commit ea35c5f3bc
parent ea0b13a05c
63 changed files with 3124 additions and 0 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -31,6 +31,8 @@ endif()
 # Required libraries.
 if(NOT ANDROID)
  find_package(SDL2 REQUIRED)
+else()
+  find_package(EGL REQUIRED)
 endif()


--- a/CMakeModules/ECMFindModuleHelpers.cmake
+++ b/CMakeModules/ECMFindModuleHelpers.cmake
@ -0,0 +1,297 @@
+#.rst:
+# ECMFindModuleHelpers
+# --------------------
+#
+# Helper macros for find modules: ecm_find_package_version_check(),
+# ecm_find_package_parse_components() and
+# ecm_find_package_handle_library_components().
+#
+# ::
+#
+#   ecm_find_package_version_check(<name>)
+#
+# Prints warnings if the CMake version or the project's required CMake version
+# is older than that required by extra-cmake-modules.
+#
+# ::
+#
+#   ecm_find_package_parse_components(<name>
+#       RESULT_VAR <variable>
+#       KNOWN_COMPONENTS <component1> [<component2> [...]]
+#       [SKIP_DEPENDENCY_HANDLING])
+#
+# This macro will populate <variable> with a list of components found in
+# <name>_FIND_COMPONENTS, after checking that all those components are in the
+# list of KNOWN_COMPONENTS; if there are any unknown components, it will print
+# an error or warning (depending on the value of <name>_FIND_REQUIRED) and call
+# return().
+#
+# The order of components in <variable> is guaranteed to match the order they
+# are listed in the KNOWN_COMPONENTS argument.
+#
+# If SKIP_DEPENDENCY_HANDLING is not set, for each component the variable
+# <name>_<component>_component_deps will be checked for dependent components.
+# If <component> is listed in <name>_FIND_COMPONENTS, then all its (transitive)
+# dependencies will also be added to <variable>.
+#
+# ::
+#
+#   ecm_find_package_handle_library_components(<name>
+#       COMPONENTS <component> [<component> [...]]
+#       [SKIP_DEPENDENCY_HANDLING])
+#       [SKIP_PKG_CONFIG])
+#
+# Creates an imported library target for each component.  The operation of this
+# macro depends on the presence of a number of CMake variables.
+#
+# The <name>_<component>_lib variable should contain the name of this library,
+# and <name>_<component>_header variable should contain the name of a header
+# file associated with it (whatever relative path is normally passed to
+# '#include'). <name>_<component>_header_subdir variable can be used to specify
+# which subdirectory of the include path the headers will be found in.
+# ecm_find_package_components() will then search for the library
+# and include directory (creating appropriate cache variables) and create an
+# imported library target named <name>::<component>.
+#
+# Additional variables can be used to provide additional information:
+#
+# If SKIP_PKG_CONFIG, the <name>_<component>_pkg_config variable is set, and
+# pkg-config is found, the pkg-config module given by
+# <name>_<component>_pkg_config will be searched for and used to help locate the
+# library and header file.  It will also be used to set
+# <name>_<component>_VERSION.
+#
+# Note that if version information is found via pkg-config,
+# <name>_<component>_FIND_VERSION can be set to require a particular version
+# for each component.
+#
+# If SKIP_DEPENDENCY_HANDLING is not set, the INTERFACE_LINK_LIBRARIES property
+# of the imported target for <component> will be set to contain the imported
+# targets for the components listed in <name>_<component>_component_deps.
+# <component>_FOUND will also be set to false if any of the compoments in
+# <name>_<component>_component_deps are not found.  This requires the components
+# in <name>_<component>_component_deps to be listed before <component> in the
+# COMPONENTS argument.
+#
+# The following variables will be set:
+#
+# ``<name>_TARGETS``
+#   the imported targets
+# ``<name>_LIBRARIES``
+#   the found libraries
+# ``<name>_INCLUDE_DIRS``
+#   the combined required include directories for the components
+# ``<name>_DEFINITIONS``
+#   the "other" CFLAGS provided by pkg-config, if any
+# ``<name>_VERSION``
+#   the value of ``<name>_<component>_VERSION`` for the first component that
+#   has this variable set (note that components are searched for in the order
+#   they are passed to the macro), although if it is already set, it will not
+#   be altered
+#
+# Note that these variables are never cleared, so if
+# ecm_find_package_handle_library_components() is called multiple times with
+# different components (typically because of multiple find_package() calls) then
+# ``<name>_TARGETS``, for example, will contain all the targets found in any
+# call (although no duplicates).
+#
+# Since pre-1.0.0.
+
+#=============================================================================
+# Copyright 2014 Alex Merry <alex.merry@kde.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+#    derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+include(CMakeParseArguments)
+
+macro(ecm_find_package_version_check module_name)
+    if(CMAKE_VERSION VERSION_LESS 2.8.12)
+        message(FATAL_ERROR "CMake 2.8.12 is required by Find${module_name}.cmake")
+    endif()
+    if(CMAKE_MINIMUM_REQUIRED_VERSION VERSION_LESS 2.8.12)
+        message(AUTHOR_WARNING "Your project should require at least CMake 2.8.12 to use Find${module_name}.cmake")
+    endif()
+endmacro()
+
+macro(ecm_find_package_parse_components module_name)
+    set(ecm_fppc_options SKIP_DEPENDENCY_HANDLING)
+    set(ecm_fppc_oneValueArgs RESULT_VAR)
+    set(ecm_fppc_multiValueArgs KNOWN_COMPONENTS DEFAULT_COMPONENTS)
+    cmake_parse_arguments(ECM_FPPC "${ecm_fppc_options}" "${ecm_fppc_oneValueArgs}" "${ecm_fppc_multiValueArgs}" ${ARGN})
+
+    if(ECM_FPPC_UNPARSED_ARGUMENTS)
+        message(FATAL_ERROR "Unexpected arguments to ecm_find_package_parse_components: ${ECM_FPPC_UNPARSED_ARGUMENTS}")
+    endif()
+    if(NOT ECM_FPPC_RESULT_VAR)
+        message(FATAL_ERROR "Missing RESULT_VAR argument to ecm_find_package_parse_components")
+    endif()
+    if(NOT ECM_FPPC_KNOWN_COMPONENTS)
+        message(FATAL_ERROR "Missing KNOWN_COMPONENTS argument to ecm_find_package_parse_components")
+    endif()
+    if(NOT ECM_FPPC_DEFAULT_COMPONENTS)
+        set(ECM_FPPC_DEFAULT_COMPONENTS ${ECM_FPPC_KNOWN_COMPONENTS})
+    endif()
+
+    if(${module_name}_FIND_COMPONENTS)
+        set(ecm_fppc_requestedComps ${${module_name}_FIND_COMPONENTS})
+
+        if(NOT ECM_FPPC_SKIP_DEPENDENCY_HANDLING)
+            # Make sure deps are included
+            foreach(ecm_fppc_comp ${ecm_fppc_requestedComps})
+                foreach(ecm_fppc_dep_comp ${${module_name}_${ecm_fppc_comp}_component_deps})
+                    list(FIND ecm_fppc_requestedComps "${ecm_fppc_dep_comp}" ecm_fppc_index)
+                    if("${ecm_fppc_index}" STREQUAL "-1")
+                        if(NOT ${module_name}_FIND_QUIETLY)
+                            message(STATUS "${module_name}: ${ecm_fppc_comp} requires ${${module_name}_${ecm_fppc_comp}_component_deps}")
+                        endif()
+                        list(APPEND ecm_fppc_requestedComps "${ecm_fppc_dep_comp}")
+                    endif()
+                endforeach()
+            endforeach()
+        else()
+            message(STATUS "Skipping dependency handling for ${module_name}")
+        endif()
+        list(REMOVE_DUPLICATES ecm_fppc_requestedComps)
+
+        # This makes sure components are listed in the same order as
+        # KNOWN_COMPONENTS (potentially important for inter-dependencies)
+        set(${ECM_FPPC_RESULT_VAR})
+        foreach(ecm_fppc_comp ${ECM_FPPC_KNOWN_COMPONENTS})
+            list(FIND ecm_fppc_requestedComps "${ecm_fppc_comp}" ecm_fppc_index)
+            if(NOT "${ecm_fppc_index}" STREQUAL "-1")
+                list(APPEND ${ECM_FPPC_RESULT_VAR} "${ecm_fppc_comp}")
+                list(REMOVE_AT ecm_fppc_requestedComps ${ecm_fppc_index})
+            endif()
+        endforeach()
+        # if there are any left, they are unknown components
+        if(ecm_fppc_requestedComps)
+            set(ecm_fppc_msgType STATUS)
+            if(${module_name}_FIND_REQUIRED)
+                set(ecm_fppc_msgType FATAL_ERROR)
+            endif()
+            if(NOT ${module_name}_FIND_QUIETLY)
+                message(${ecm_fppc_msgType} "${module_name}: requested unknown components ${ecm_fppc_requestedComps}")
+            endif()
+            return()
+        endif()
+    else()
+        set(${ECM_FPPC_RESULT_VAR} ${ECM_FPPC_DEFAULT_COMPONENTS})
+    endif()
+endmacro()
+
+macro(ecm_find_package_handle_library_components module_name)
+    set(ecm_fpwc_options SKIP_PKG_CONFIG SKIP_DEPENDENCY_HANDLING)
+    set(ecm_fpwc_oneValueArgs)
+    set(ecm_fpwc_multiValueArgs COMPONENTS)
+    cmake_parse_arguments(ECM_FPWC "${ecm_fpwc_options}" "${ecm_fpwc_oneValueArgs}" "${ecm_fpwc_multiValueArgs}" ${ARGN})
+
+    if(ECM_FPWC_UNPARSED_ARGUMENTS)
+        message(FATAL_ERROR "Unexpected arguments to ecm_find_package_handle_components: ${ECM_FPWC_UNPARSED_ARGUMENTS}")
+    endif()
+    if(NOT ECM_FPWC_COMPONENTS)
+        message(FATAL_ERROR "Missing COMPONENTS argument to ecm_find_package_handle_components")
+    endif()
+
+    include(FindPackageHandleStandardArgs)
+    find_package(PkgConfig)
+    foreach(ecm_fpwc_comp ${ECM_FPWC_COMPONENTS})
+        set(ecm_fpwc_dep_vars)
+        set(ecm_fpwc_dep_targets)
+        if(NOT SKIP_DEPENDENCY_HANDLING)
+            foreach(ecm_fpwc_dep ${${module_name}_${ecm_fpwc_comp}_component_deps})
+                list(APPEND ecm_fpwc_dep_vars "${module_name}_${ecm_fpwc_dep}_FOUND")
+                list(APPEND ecm_fpwc_dep_targets "${module_name}::${ecm_fpwc_dep}")
+            endforeach()
+        endif()
+
+        if(NOT ECM_FPWC_SKIP_PKG_CONFIG AND ${module_name}_${ecm_fpwc_comp}_pkg_config)
+            pkg_check_modules(PKG_${module_name}_${ecm_fpwc_comp} QUIET
+                              ${${module_name}_${ecm_fpwc_comp}_pkg_config})
+        endif()
+
+        find_path(${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR
+            NAMES ${${module_name}_${ecm_fpwc_comp}_header}
+            HINTS ${PKG_${module_name}_${ecm_fpwc_comp}_INCLUDE_DIRS}
+            PATH_SUFFIXES ${${module_name}_${ecm_fpwc_comp}_header_subdir}
+        )
+        find_library(${module_name}_${ecm_fpwc_comp}_LIBRARY
+            NAMES ${${module_name}_${ecm_fpwc_comp}_lib}
+            HINTS ${PKG_${module_name}_${ecm_fpwc_comp}_LIBRARY_DIRS}
+        )
+
+        set(${module_name}_${ecm_fpwc_comp}_VERSION "${PKG_${module_name}_${ecm_fpwc_comp}_VERSION}")
+        if(NOT ${module_name}_VERSION)
+            set(${module_name}_VERSION ${${module_name}_${ecm_fpwc_comp}_VERSION})
+        endif()
+
+        find_package_handle_standard_args(${module_name}_${ecm_fpwc_comp}
+            FOUND_VAR
+                ${module_name}_${ecm_fpwc_comp}_FOUND
+            REQUIRED_VARS
+                ${module_name}_${ecm_fpwc_comp}_LIBRARY
+                ${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR
+                ${ecm_fpwc_dep_vars}
+            VERSION_VAR
+                ${module_name}_${ecm_fpwc_comp}_VERSION
+            )
+
+        mark_as_advanced(
+            ${module_name}_${ecm_fpwc_comp}_LIBRARY
+            ${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR
+        )
+
+        if(${module_name}_${ecm_fpwc_comp}_FOUND)
+            list(APPEND ${module_name}_LIBRARIES
+                        "${${module_name}_${ecm_fpwc_comp}_LIBRARY}")
+            list(APPEND ${module_name}_INCLUDE_DIRS
+                        "${${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR}")
+            set(${module_name}_DEFINITIONS
+                    ${${module_name}_DEFINITIONS}
+                    ${PKG_${module_name}_${ecm_fpwc_comp}_DEFINITIONS})
+            if(NOT TARGET ${module_name}::${ecm_fpwc_comp})
+                add_library(${module_name}::${ecm_fpwc_comp} UNKNOWN IMPORTED)
+                set_target_properties(${module_name}::${ecm_fpwc_comp} PROPERTIES
+                    IMPORTED_LOCATION "${${module_name}_${ecm_fpwc_comp}_LIBRARY}"
+                    INTERFACE_COMPILE_OPTIONS "${PKG_${module_name}_${ecm_fpwc_comp}_DEFINITIONS}"
+                    INTERFACE_INCLUDE_DIRECTORIES "${${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR}"
+                    INTERFACE_LINK_LIBRARIES "${ecm_fpwc_dep_targets}"
+                )
+            endif()
+            list(APPEND ${module_name}_TARGETS
+                        "${module_name}::${ecm_fpwc_comp}")
+        endif()
+    endforeach()
+    if(${module_name}_LIBRARIES)
+        list(REMOVE_DUPLICATES ${module_name}_LIBRARIES)
+    endif()
+    if(${module_name}_INCLUDE_DIRS)
+        list(REMOVE_DUPLICATES ${module_name}_INCLUDE_DIRS)
+    endif()
+    if(${module_name}_DEFINITIONS)
+        list(REMOVE_DUPLICATES ${module_name}_DEFINITIONS)
+    endif()
+    if(${module_name}_TARGETS)
+        list(REMOVE_DUPLICATES ${module_name}_TARGETS)
+    endif()
+endmacro()
--- a/CMakeModules/ECMFindModuleHelpersStub.cmake
+++ b/CMakeModules/ECMFindModuleHelpersStub.cmake
@ -0,0 +1 @@
+include(${CMAKE_CURRENT_LIST_DIR}/ECMFindModuleHelpers.cmake)
--- a/CMakeModules/FindEGL.cmake
+++ b/CMakeModules/FindEGL.cmake
@ -0,0 +1,172 @@
+#.rst:
+# FindEGL
+# -------
+#
+# Try to find EGL.
+#
+# This will define the following variables:
+#
+# ``EGL_FOUND``
+#     True if (the requested version of) EGL is available
+# ``EGL_VERSION``
+#     The version of EGL; note that this is the API version defined in the
+#     headers, rather than the version of the implementation (eg: Mesa)
+# ``EGL_LIBRARIES``
+#     This can be passed to target_link_libraries() instead of the ``EGL::EGL``
+#     target
+# ``EGL_INCLUDE_DIRS``
+#     This should be passed to target_include_directories() if the target is not
+#     used for linking
+# ``EGL_DEFINITIONS``
+#     This should be passed to target_compile_options() if the target is not
+#     used for linking
+#
+# If ``EGL_FOUND`` is TRUE, it will also define the following imported target:
+#
+# ``EGL::EGL``
+#     The EGL library
+#
+# In general we recommend using the imported target, as it is easier to use.
+# Bear in mind, however, that if the target is in the link interface of an
+# exported library, it must be made available by the package config file.
+#
+# Since pre-1.0.0.
+
+#=============================================================================
+# Copyright 2014 Alex Merry <alex.merry@kde.org>
+# Copyright 2014 Martin Gräßlin <mgraesslin@kde.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+#    derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#=============================================================================
+
+include(${CMAKE_CURRENT_LIST_DIR}/ECMFindModuleHelpersStub.cmake)
+include(CheckCXXSourceCompiles)
+include(CMakePushCheckState)
+
+ecm_find_package_version_check(EGL)
+
+# Use pkg-config to get the directories and then use these values
+# in the FIND_PATH() and FIND_LIBRARY() calls
+find_package(PkgConfig)
+pkg_check_modules(PKG_EGL QUIET egl)
+
+set(EGL_DEFINITIONS ${PKG_EGL_CFLAGS_OTHER})
+
+find_path(EGL_INCLUDE_DIR
+    NAMES
+        EGL/egl.h
+    HINTS
+        ${PKG_EGL_INCLUDE_DIRS}
+)
+find_library(EGL_LIBRARY
+    NAMES
+        EGL
+    HINTS
+        ${PKG_EGL_LIBRARY_DIRS}
+)
+
+# NB: We do *not* use the version information from pkg-config, as that
+#     is the implementation version (eg: the Mesa version)
+if(EGL_INCLUDE_DIR)
+    # egl.h has defines of the form EGL_VERSION_x_y for each supported
+    # version; so the header for EGL 1.1 will define EGL_VERSION_1_0 and
+    # EGL_VERSION_1_1.  Finding the highest supported version involves
+    # finding all these defines and selecting the highest numbered.
+    file(READ "${EGL_INCLUDE_DIR}/EGL/egl.h" _EGL_header_contents)
+    string(REGEX MATCHALL
+        "[ \t]EGL_VERSION_[0-9_]+"
+        _EGL_version_lines
+        "${_EGL_header_contents}"
+    )
+    unset(_EGL_header_contents)
+    foreach(_EGL_version_line ${_EGL_version_lines})
+        string(REGEX REPLACE
+            "[ \t]EGL_VERSION_([0-9_]+)"
+            "\\1"
+            _version_candidate
+            "${_EGL_version_line}"
+        )
+        string(REPLACE "_" "." _version_candidate "${_version_candidate}")
+        if(NOT DEFINED EGL_VERSION OR EGL_VERSION VERSION_LESS _version_candidate)
+            set(EGL_VERSION "${_version_candidate}")
+        endif()
+    endforeach()
+    unset(_EGL_version_lines)
+endif()
+
+cmake_push_check_state(RESET)
+list(APPEND CMAKE_REQUIRED_LIBRARIES "${EGL_LIBRARY}")
+list(APPEND CMAKE_REQUIRED_INCLUDES "${EGL_INCLUDE_DIR}")
+
+check_cxx_source_compiles("
+#include <EGL/egl.h>
+
+int main(int argc, char *argv[]) {
+    EGLint x = 0; EGLDisplay dpy = 0; EGLContext ctx = 0;
+    eglDestroyContext(dpy, ctx);
+}" HAVE_EGL)
+
+cmake_pop_check_state()
+
+set(required_vars EGL_INCLUDE_DIR HAVE_EGL)
+if(NOT EMSCRIPTEN)
+    list(APPEND required_vars EGL_LIBRARY)
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(EGL
+    FOUND_VAR
+        EGL_FOUND
+    REQUIRED_VARS
+        ${required_vars}
+    VERSION_VAR
+        EGL_VERSION
+)
+
+if(EGL_FOUND AND NOT TARGET EGL::EGL)
+    if (EMSCRIPTEN)
+        add_library(EGL::EGL INTERFACE IMPORTED)
+        # Nothing further to be done, system include paths have headers and linkage is implicit.
+    else()
+        add_library(EGL::EGL UNKNOWN IMPORTED)
+        set_target_properties(EGL::EGL PROPERTIES
+            IMPORTED_LOCATION "${EGL_LIBRARY}"
+            INTERFACE_COMPILE_OPTIONS "${EGL_DEFINITIONS}"
+            INTERFACE_INCLUDE_DIRECTORIES "${EGL_INCLUDE_DIR}"
+        )
+    endif()
+endif()
+
+mark_as_advanced(EGL_LIBRARY EGL_INCLUDE_DIR HAVE_EGL)
+
+# compatibility variables
+set(EGL_LIBRARIES ${EGL_LIBRARY})
+set(EGL_INCLUDE_DIRS ${EGL_INCLUDE_DIR})
+set(EGL_VERSION_STRING ${EGL_VERSION})
+
+include(FeatureSummary)
+set_package_properties(EGL PROPERTIES
+    URL "https://www.khronos.org/egl/"
+    DESCRIPTION "A platform-agnostic mechanism for creating rendering surfaces for use with other graphics libraries, such as OpenGL|ES and OpenVG."
+)
--- a/android/.gitignore
+++ b/android/.gitignore
@ -0,0 +1,14 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
--- a/android/.idea/.name
+++ b/android/.idea/.name
@ -0,0 +1 @@
+DuckStation
--- a/android/.idea/codeStyles/Project.xml
+++ b/android/.idea/codeStyles/Project.xml
@ -0,0 +1,116 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <codeStyleSettings language="XML">
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+      </indentOptions>
+      <arrangement>
+        <rules>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:android</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:id</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>style</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>ANDROID_ATTRIBUTE_ORDER</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>.*</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+        </rules>
+      </arrangement>
+    </codeStyleSettings>
+  </code_scheme>
+</component>
--- a/android/.idea/gradle.xml
+++ b/android/.idea/gradle.xml
@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <compositeConfiguration>
+          <compositeBuild compositeDefinitionSource="SCRIPT" />
+        </compositeConfiguration>
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="resolveModulePerSourceSet" value="false" />
+        <option name="testRunner" value="PLATFORM" />
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>
--- a/android/.idea/misc.xml
+++ b/android/.idea/misc.xml
@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>
--- a/android/.idea/runConfigurations.xml
+++ b/android/.idea/runConfigurations.xml
@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RunConfigurationProducerService">
+    <option name="ignoredProducers">
+      <set>
+        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
+        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
+        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
+      </set>
+    </option>
+  </component>
+</project>
--- a/android/.idea/vcs.xml
+++ b/android/.idea/vcs.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>
--- a/android/app/.gitignore
+++ b/android/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@ -0,0 +1,47 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 29
+    buildToolsVersion "29.0.2"
+    defaultConfig {
+        applicationId "com.github.stenzek.duckstation"
+        minSdkVersion 21
+        targetSdkVersion 29
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    externalNativeBuild {
+        cmake {
+            path "../../CMakeLists.txt"
+            version "3.10.2"
+        }
+    }
+    defaultConfig {
+        externalNativeBuild {
+            cmake {
+                arguments "-DCMAKE_BUILD_TYPE=RelWithDebInfo"
+                abiFilters "x86"
+            }
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'com.google.android.material:material:1.0.0'
+    implementation 'androidx.preference:preference:1.1.0-alpha05'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
+}
--- a/android/app/proguard-rules.pro
+++ b/android/app/proguard-rules.pro
@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/android/app/src/androidTest/java/com/github/stenzek/duckstation/ExampleInstrumentedTest.java
+++ b/android/app/src/androidTest/java/com/github/stenzek/duckstation/ExampleInstrumentedTest.java
@ -0,0 +1,27 @@
+package com.github.stenzek.duckstation;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+
+        assertEquals("com.github.stenzek.duckstation", appContext.getPackageName());
+    }
+}
--- a/android/app/src/cpp/CMakeLists.txt
+++ b/android/app/src/cpp/CMakeLists.txt
@ -0,0 +1,12 @@
+set(SRCS
+  android_audio_stream.cpp
+  android_audio_stream.h
+  android_host_interface.cpp
+  android_host_interface.h
+  android_gles2_host_display.cpp
+  android_gles2_host_display.h
+  main.cpp
+)
+
+add_library(duckstation-native SHARED ${SRCS})
+target_link_libraries(duckstation-native PRIVATE android core common glad imgui EGL::EGL)
--- a/android/app/src/cpp/android_audio_stream.cpp
+++ b/android/app/src/cpp/android_audio_stream.cpp
@ -0,0 +1,68 @@
+#include "android_audio_stream.h"
+#include "YBaseLib/Assert.h"
+#include "YBaseLib/Log.h"
+Log_SetChannel(AndroidAudioStream);
+
+AndroidAudioStream::AndroidAudioStream() = default;
+
+AndroidAudioStream::~AndroidAudioStream()
+{
+  if (m_is_open)
+    AndroidAudioStream::CloseDevice();
+}
+
+std::unique_ptr<AudioStream> AndroidAudioStream::Create()
+{
+  return std::make_unique<AndroidAudioStream>();
+}
+
+bool AndroidAudioStream::OpenDevice()
+{
+  DebugAssert(!m_is_open);
+#if 0
+  SDL_AudioSpec spec = {};
+  spec.freq = m_output_sample_rate;
+  spec.channels = static_cast<Uint8>(m_channels);
+  spec.format = AUDIO_S16;
+  spec.samples = static_cast<Uint16>(m_buffer_size);
+  spec.callback = AudioCallback;
+  spec.userdata = static_cast<void*>(this);
+
+  SDL_AudioSpec obtained = {};
+  if (SDL_OpenAudio(&spec, &obtained) < 0)
+  {
+    Log_ErrorPrintf("SDL_OpenAudio failed");
+    return false;
+  }
+#endif
+
+  m_is_open = true;
+  return true;
+}
+
+void AndroidAudioStream::PauseDevice(bool paused)
+{
+  // SDL_PauseAudio(paused ? 1 : 0);
+}
+
+void AndroidAudioStream::CloseDevice()
+{
+  DebugAssert(m_is_open);
+  // SDL_CloseAudio();
+  m_is_open = false;
+}
+
+#if 0
+void AndroidAudioStream::AudioCallback(void* userdata, uint8_t* stream, int len)
+{
+  AndroidAudioStream* const this_ptr = static_cast<AndroidAudioStream*>(userdata);
+  const u32 num_samples = len / sizeof(SampleType) / this_ptr->m_channels;
+  const u32 read_samples = this_ptr->ReadSamples(reinterpret_cast<SampleType*>(stream), num_samples);
+  const u32 silence_samples = num_samples - read_samples;
+  if (silence_samples > 0)
+  {
+    std::memset(reinterpret_cast<SampleType*>(stream) + (read_samples * this_ptr->m_channels), 0,
+                silence_samples * this_ptr->m_channels * sizeof(SampleType));
+  }
+}
+#endif
--- a/android/app/src/cpp/android_audio_stream.h
+++ b/android/app/src/cpp/android_audio_stream.h
@ -0,0 +1,21 @@
+#pragma once
+#include "common/audio_stream.h"
+#include <cstdint>
+
+class AndroidAudioStream final : public AudioStream
+{
+public:
+  AndroidAudioStream();
+  ~AndroidAudioStream();
+
+  static std::unique_ptr<AudioStream> Create();
+
+protected:
+  bool OpenDevice() override;
+  void PauseDevice(bool paused) override;
+  void CloseDevice() override;
+
+  // static void AudioCallback(void* userdata, uint8_t* stream, int len);
+
+  bool m_is_open = false;
+};
--- a/android/app/src/cpp/android_gles2_host_display.cpp
+++ b/android/app/src/cpp/android_gles2_host_display.cpp
@ -0,0 +1,392 @@
+#include "android_gles2_host_display.h"
+#include "YBaseLib/Log.h"
+#include <EGL/eglext.h>
+#include <array>
+#include <imgui.h>
+#include <imgui_impl_opengl3.h>
+#include <tuple>
+Log_SetChannel(AndroidGLES2HostDisplay);
+
+class AndroidGLES2HostDisplayTexture : public HostDisplayTexture
+{
+public:
+  AndroidGLES2HostDisplayTexture(GLuint id, u32 width, u32 height) : m_id(id), m_width(width), m_height(height) {}
+  ~AndroidGLES2HostDisplayTexture() override { glDeleteTextures(1, &m_id); }
+
+  void* GetHandle() const override { return reinterpret_cast<void*>(static_cast<uintptr_t>(m_id)); }
+  u32 GetWidth() const override { return m_width; }
+  u32 GetHeight() const override { return m_height; }
+
+  GLuint GetGLID() const { return m_id; }
+
+  static std::unique_ptr<AndroidGLES2HostDisplayTexture> Create(u32 width, u32 height, const void* initial_data,
+                                                                u32 initial_data_stride)
+  {
+    GLuint id;
+    glGenTextures(1, &id);
+
+    GLint old_texture_binding = 0;
+    glGetIntegerv(GL_TEXTURE_BINDING_2D, &old_texture_binding);
+
+    // TODO: Set pack width
+    Assert(!initial_data || initial_data_stride == (width * sizeof(u32)));
+
+    glBindTexture(GL_TEXTURE_2D, id);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, initial_data);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+    glBindTexture(GL_TEXTURE_2D, id);
+    return std::make_unique<AndroidGLES2HostDisplayTexture>(id, width, height);
+  }
+
+private:
+  GLuint m_id;
+  u32 m_width;
+  u32 m_height;
+};
+
+AndroidGLES2HostDisplay::AndroidGLES2HostDisplay(ANativeWindow* window)
+  : m_window(window), m_window_width(ANativeWindow_getWidth(window)), m_window_height(ANativeWindow_getHeight(window))
+{
+}
+
+AndroidGLES2HostDisplay::~AndroidGLES2HostDisplay()
+{
+  if (m_egl_context != EGL_NO_CONTEXT)
+  {
+    m_display_program.Destroy();
+    ImGui_ImplOpenGL3_Shutdown();
+    eglMakeCurrent(m_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+    eglDestroyContext(m_egl_display, m_egl_context);
+  }
+
+  if (m_egl_surface != EGL_NO_SURFACE)
+    eglDestroySurface(m_egl_display, m_egl_surface);
+}
+
+HostDisplay::RenderAPI AndroidGLES2HostDisplay::GetRenderAPI() const
+{
+  return HostDisplay::RenderAPI::OpenGLES;
+}
+
+void* AndroidGLES2HostDisplay::GetRenderDevice() const
+{
+  return nullptr;
+}
+
+void* AndroidGLES2HostDisplay::GetRenderContext() const
+{
+  return m_egl_context;
+}
+
+void* AndroidGLES2HostDisplay::GetRenderWindow() const
+{
+  return m_window;
+}
+
+void AndroidGLES2HostDisplay::ChangeRenderWindow(void* new_window)
+{
+  eglMakeCurrent(m_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+
+  DestroySurface();
+
+  m_window = static_cast<ANativeWindow*>(new_window);
+
+  if (!CreateSurface())
+    Panic("Failed to recreate surface after window change");
+
+  if (!eglMakeCurrent(m_egl_display, m_egl_surface, m_egl_surface, m_egl_context))
+    Panic("Failed to make context current after window change");
+}
+
+std::unique_ptr<HostDisplayTexture> AndroidGLES2HostDisplay::CreateTexture(u32 width, u32 height, const void* data,
+                                                                           u32 data_stride, bool dynamic)
+{
+  return AndroidGLES2HostDisplayTexture::Create(width, height, data, data_stride);
+}
+
+void AndroidGLES2HostDisplay::UpdateTexture(HostDisplayTexture* texture, u32 x, u32 y, u32 width, u32 height,
+                                            const void* data, u32 data_stride)
+{
+  AndroidGLES2HostDisplayTexture* tex = static_cast<AndroidGLES2HostDisplayTexture*>(texture);
+  Assert(data_stride == (width * sizeof(u32)));
+
+  GLint old_texture_binding = 0;
+  glGetIntegerv(GL_TEXTURE_BINDING_2D, &old_texture_binding);
+
+  glBindTexture(GL_TEXTURE_2D, tex->GetGLID());
+  glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, width, height, GL_RGBA, GL_UNSIGNED_BYTE, data);
+
+  glBindTexture(GL_TEXTURE_2D, old_texture_binding);
+}
+
+void AndroidGLES2HostDisplay::SetDisplayTexture(void* texture, s32 offset_x, s32 offset_y, s32 width, s32 height,
+                                                u32 texture_width, u32 texture_height, float aspect_ratio)
+{
+  m_display_texture_id = static_cast<GLuint>(reinterpret_cast<uintptr_t>(texture));
+  m_display_offset_x = offset_x;
+  m_display_offset_y = offset_y;
+  m_display_width = width;
+  m_display_height = height;
+  m_display_texture_width = texture_width;
+  m_display_texture_height = texture_height;
+  m_display_aspect_ratio = aspect_ratio;
+  m_display_texture_changed = true;
+}
+
+void AndroidGLES2HostDisplay::SetDisplayLinearFiltering(bool enabled)
+{
+  m_display_linear_filtering = enabled;
+}
+
+void AndroidGLES2HostDisplay::SetDisplayTopMargin(int height)
+{
+  m_display_top_margin = height;
+}
+
+void AndroidGLES2HostDisplay::SetVSync(bool enabled)
+{
+  eglSwapInterval(m_egl_display, enabled ? 1 : 0);
+}
+
+std::tuple<u32, u32> AndroidGLES2HostDisplay::GetWindowSize() const
+{
+  return std::make_tuple(static_cast<u32>(m_window_width), static_cast<u32>(m_window_height));
+}
+
+void AndroidGLES2HostDisplay::WindowResized()
+{
+  m_window_width = ANativeWindow_getWidth(m_window);
+  m_window_height = ANativeWindow_getHeight(m_window);
+  Log_InfoPrintf("WindowResized %dx%d", m_window_width, m_window_height);
+}
+
+const char* AndroidGLES2HostDisplay::GetGLSLVersionString() const
+{
+  return "#version 100";
+}
+
+std::string AndroidGLES2HostDisplay::GetGLSLVersionHeader() const
+{
+  return R"(
+#version 100
+
+precision highp float;
+precision highp int;
+)";
+}
+
+bool AndroidGLES2HostDisplay::CreateGLContext()
+{
+  m_egl_display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+  if (!m_egl_display)
+  {
+    Log_ErrorPrint("eglGetDisplay() failed");
+    return false;
+  }
+
+  EGLint egl_major_version, egl_minor_version;
+  if (!eglInitialize(m_egl_display, &egl_major_version, &egl_minor_version))
+  {
+    Log_ErrorPrint("eglInitialize() failed");
+    return false;
+  }
+
+  Log_InfoPrintf("EGL version %d.%d initialized", egl_major_version, egl_minor_version);
+
+  static constexpr std::array<int, 11> egl_surface_attribs = {{EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, EGL_RED_SIZE, 8,
+                                                               EGL_GREEN_SIZE, 8, EGL_BLUE_SIZE, 8, EGL_SURFACE_TYPE,
+                                                               EGL_WINDOW_BIT, EGL_NONE}};
+
+  int num_m_egl_configs;
+  if (!eglChooseConfig(m_egl_display, egl_surface_attribs.data(), &m_egl_config, 1, &num_m_egl_configs))
+  {
+    Log_ErrorPrint("eglChooseConfig() failed");
+    return false;
+  }
+
+  eglBindAPI(EGL_OPENGL_ES_API);
+
+  static constexpr std::array<int, 3> egl_context_attribs = {{EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE}};
+  m_egl_context = eglCreateContext(m_egl_display, m_egl_config, EGL_NO_CONTEXT, egl_context_attribs.data());
+  if (!m_egl_context)
+  {
+    Log_ErrorPrint("eglCreateContext() failed");
+    return false;
+  }
+
+  if (!CreateSurface())
+    return false;
+
+  if (!eglMakeCurrent(m_egl_display, m_egl_surface, m_egl_surface, m_egl_context))
+  {
+    Log_ErrorPrint("eglMakeCurrent() failed");
+    return false;
+  }
+
+  // Load GLAD.
+  if (!gladLoadGLES2Loader(reinterpret_cast<GLADloadproc>(eglGetProcAddress)))
+  {
+    Log_ErrorPrintf("Failed to load GL functions");
+    return false;
+  }
+
+  return true;
+}
+
+bool AndroidGLES2HostDisplay::CreateSurface()
+{
+  EGLint native_visual;
+  eglGetConfigAttrib(m_egl_display, m_egl_config, EGL_NATIVE_VISUAL_ID, &native_visual);
+  ANativeWindow_setBuffersGeometry(m_window, 0, 0, native_visual);
+  m_window_width = ANativeWindow_getWidth(m_window);
+  m_window_height = ANativeWindow_getHeight(m_window);
+
+  m_egl_surface = eglCreateWindowSurface(m_egl_display, m_egl_config, m_window, nullptr);
+  if (!m_egl_surface)
+  {
+    Log_ErrorPrint("eglCreateWindowSurface() failed");
+    return false;
+  }
+
+  WindowResized();
+  return true;
+}
+
+void AndroidGLES2HostDisplay::DestroySurface()
+{
+  eglDestroySurface(m_egl_display, m_egl_surface);
+  m_egl_surface = EGL_NO_SURFACE;
+}
+
+bool AndroidGLES2HostDisplay::CreateImGuiContext()
+{
+  if (!ImGui_ImplOpenGL3_Init(GetGLSLVersionString()))
+    return false;
+
+  ImGui_ImplOpenGL3_NewFrame();
+  ImGui::GetIO().DisplaySize.x = static_cast<float>(m_window_width);
+  ImGui::GetIO().DisplaySize.y = static_cast<float>(m_window_height);
+  return true;
+}
+
+bool AndroidGLES2HostDisplay::CreateGLResources()
+{
+  static constexpr char fullscreen_quad_vertex_shader[] = R"(
+attribute vec2 a_pos;
+attribute vec2 a_tex0;
+
+varying vec2 v_tex0;
+
+void main()
+{
+  v_tex0 = a_tex0;
+  gl_Position = vec4(a_pos, 0.0, 1.0);
+}
+)";
+
+  static constexpr char display_fragment_shader[] = R"(
+uniform sampler2D samp0;
+
+varying vec2 v_tex0;
+
+void main()
+{
+  gl_FragColor = texture2D(samp0, v_tex0);
+}
+)";
+
+  if (!m_display_program.Compile(GetGLSLVersionHeader() + fullscreen_quad_vertex_shader,
+                                 GetGLSLVersionHeader() + display_fragment_shader))
+  {
+    Log_ErrorPrintf("Failed to compile display shaders");
+    return false;
+  }
+
+  m_display_program.BindAttribute(0, "a_pos");
+  m_display_program.BindAttribute(1, "a_tex0");
+
+  if (!m_display_program.Link())
+  {
+    Log_ErrorPrintf("Failed to link display program");
+    return false;
+  }
+
+  m_display_program.Bind();
+  m_display_program.RegisterUniform("samp0");
+  m_display_program.Uniform1i(0, 0);
+
+  return true;
+}
+
+std::unique_ptr<HostDisplay> AndroidGLES2HostDisplay::Create(ANativeWindow* window)
+{
+  std::unique_ptr<AndroidGLES2HostDisplay> display = std::make_unique<AndroidGLES2HostDisplay>(window);
+  if (!display->CreateGLContext() || !display->CreateImGuiContext() || !display->CreateGLResources())
+    return nullptr;
+
+  Log_DevPrintf("%dx%d display created", display->m_window_width, display->m_window_height);
+  return display;
+}
+
+void AndroidGLES2HostDisplay::Render()
+{
+  glDisable(GL_SCISSOR_TEST);
+  glBindFramebuffer(GL_FRAMEBUFFER, 0);
+  glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+  glClear(GL_COLOR_BUFFER_BIT);
+
+  RenderDisplay();
+
+  ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
+
+  eglSwapBuffers(m_egl_display, m_egl_surface);
+
+  ImGui_ImplOpenGL3_NewFrame();
+
+  GL::Program::ResetLastProgram();
+}
+
+void AndroidGLES2HostDisplay::RenderDisplay()
+{
+  if (!m_display_texture_id)
+    return;
+
+  // - 20 for main menu padding
+  const auto [vp_left, vp_top, vp_width, vp_height] =
+    CalculateDrawRect(m_window_width, std::max(m_window_height - m_display_top_margin, 1), m_display_aspect_ratio);
+
+  glViewport(vp_left, m_window_height - (m_display_top_margin + vp_top) - vp_height, vp_width, vp_height);
+  glDisable(GL_BLEND);
+  glDisable(GL_CULL_FACE);
+  glDisable(GL_DEPTH_TEST);
+  glDisable(GL_SCISSOR_TEST);
+  glDepthMask(GL_FALSE);
+  m_display_program.Bind();
+
+  const float tex_left = static_cast<float>(m_display_offset_x) / static_cast<float>(m_display_texture_width);
+  const float tex_right = tex_left + static_cast<float>(m_display_width) / static_cast<float>(m_display_texture_width);
+  const float tex_top = static_cast<float>(m_display_offset_y) / static_cast<float>(m_display_texture_height);
+  const float tex_bottom =
+    tex_top + static_cast<float>(m_display_height) / static_cast<float>(m_display_texture_height);
+  const std::array<std::array<float, 4>, 4> vertices = {{
+    {{-1.0f, -1.0f, tex_left, tex_bottom}}, // bottom-left
+    {{1.0f, -1.0f, tex_right, tex_bottom}}, // bottom-right
+    {{-1.0f, 1.0f, tex_left, tex_top}},     // top-left
+    {{1.0f, 1.0f, tex_right, tex_top}},     // top-right
+  }};
+
+  glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(vertices[0]), &vertices[0][0]);
+  glEnableVertexAttribArray(0);
+  glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(vertices[0]), &vertices[0][2]);
+  glEnableVertexAttribArray(1);
+
+  glBindTexture(GL_TEXTURE_2D, m_display_texture_id);
+
+  glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+  glDisableVertexAttribArray(1);
+  glDisableVertexAttribArray(0);
+}
--- a/android/app/src/cpp/android_gles2_host_display.h
+++ b/android/app/src/cpp/android_gles2_host_display.h
@ -0,0 +1,78 @@
+#pragma once
+#include "common/gl/program.h"
+#include "common/gl/texture.h"
+#include "core/host_display.h"
+#include <EGL/egl.h>
+#include <android/native_window.h>
+#include <glad.h>
+#include <memory>
+#include <string>
+
+class AndroidGLES2HostDisplay final : public HostDisplay
+{
+public:
+  AndroidGLES2HostDisplay(ANativeWindow* window);
+  ~AndroidGLES2HostDisplay();
+
+  static std::unique_ptr<HostDisplay> Create(ANativeWindow* window);
+
+  RenderAPI GetRenderAPI() const override;
+  void* GetRenderDevice() const override;
+  void* GetRenderContext() const override;
+  void* GetRenderWindow() const override;
+
+  void ChangeRenderWindow(void* new_window) override;
+
+  std::unique_ptr<HostDisplayTexture> CreateTexture(u32 width, u32 height, const void* data, u32 data_stride,
+                                                    bool dynamic) override;
+  void UpdateTexture(HostDisplayTexture* texture, u32 x, u32 y, u32 width, u32 height, const void* data,
+                     u32 data_stride) override;
+
+  void SetDisplayTexture(void* texture, s32 offset_x, s32 offset_y, s32 width, s32 height, u32 texture_width,
+                         u32 texture_height, float aspect_ratio) override;
+  void SetDisplayLinearFiltering(bool enabled) override;
+  void SetDisplayTopMargin(int height) override;
+
+  void SetVSync(bool enabled) override;
+
+  void Render() override;
+
+  std::tuple<u32, u32> GetWindowSize() const override;
+  void WindowResized() override;
+
+private:
+  const char* GetGLSLVersionString() const;
+  std::string GetGLSLVersionHeader() const;
+
+  bool CreateSurface();
+  void DestroySurface();
+
+  bool CreateGLContext();
+  bool CreateImGuiContext();
+  bool CreateGLResources();
+
+  void RenderDisplay();
+
+  ANativeWindow* m_window = nullptr;
+  int m_window_width = 0;
+  int m_window_height = 0;
+
+  EGLDisplay m_egl_display = EGL_NO_DISPLAY;
+  EGLSurface m_egl_surface = EGL_NO_SURFACE;
+  EGLContext m_egl_context = EGL_NO_CONTEXT;
+  EGLConfig m_egl_config = {};
+
+  GL::Program m_display_program;
+  GLuint m_display_texture_id = 0;
+  s32 m_display_offset_x = 0;
+  s32 m_display_offset_y = 0;
+  s32 m_display_width = 0;
+  s32 m_display_height = 0;
+  u32 m_display_texture_width = 0;
+  u32 m_display_texture_height = 0;
+  int m_display_top_margin = 0;
+  float m_display_aspect_ratio = 1.0f;
+
+  bool m_display_texture_changed = false;
+  bool m_display_linear_filtering = false;
+};
--- a/android/app/src/cpp/android_host_interface.cpp
+++ b/android/app/src/cpp/android_host_interface.cpp
@ -0,0 +1,416 @@
+#include "android_host_interface.h"
+#include "YBaseLib/Assert.h"
+#include "YBaseLib/Log.h"
+#include "YBaseLib/String.h"
+#include "android_audio_stream.h"
+#include "android_gles2_host_display.h"
+#include "core/gpu.h"
+#include "core/host_display.h"
+#include "core/system.h"
+#include <android/native_window_jni.h>
+#include <imgui.h>
+Log_SetChannel(AndroidHostInterface);
+
+static JavaVM* s_jvm;
+static jclass s_AndroidHostInterface_class;
+static jmethodID s_AndroidHostInterface_constructor;
+static jfieldID s_AndroidHostInterface_field_nativePointer;
+
+// helper for retrieving the current per-thread jni environment
+static JNIEnv* GetJNIEnv()
+{
+  JNIEnv* env;
+  if (s_jvm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK)
+    return nullptr;
+  else
+    return env;
+}
+
+static AndroidHostInterface* GetNativeClass(JNIEnv* env, jobject obj)
+{
+  return reinterpret_cast<AndroidHostInterface*>(
+    static_cast<uintptr_t>(env->GetLongField(obj, s_AndroidHostInterface_field_nativePointer)));
+}
+
+static std::string JStringToString(JNIEnv* env, jstring str)
+{
+  jsize length = env->GetStringUTFLength(str);
+  if (length == 0)
+    return {};
+
+  const char* data = env->GetStringUTFChars(str, nullptr);
+  Assert(data != nullptr);
+
+  std::string ret(data, length);
+  env->ReleaseStringUTFChars(str, data);
+
+  return ret;
+}
+
+AndroidHostInterface::AndroidHostInterface(jobject java_object) : m_java_object(java_object)
+{
+  m_settings.SetDefaults();
+  m_settings.bios_path = "/sdcard/PSX/BIOS/scph1001.bin";
+  m_settings.memory_card_a_path = "/sdcard/PSX/memory_card_a.mcd";
+  m_settings.gpu_renderer = GPURenderer::Software;
+  m_settings.video_sync_enabled = true;
+  m_settings.audio_sync_enabled = false;
+  // m_settings.debugging.show_vram = true;
+}
+
+AndroidHostInterface::~AndroidHostInterface()
+{
+  ImGui::DestroyContext();
+  GetJNIEnv()->DeleteGlobalRef(m_java_object);
+}
+
+void AndroidHostInterface::ReportError(const char* message)
+{
+  HostInterface::ReportError(message);
+}
+
+void AndroidHostInterface::ReportMessage(const char* message)
+{
+  HostInterface::ReportMessage(message);
+}
+
+bool AndroidHostInterface::StartEmulationThread(ANativeWindow* initial_surface, std::string initial_filename,
+                                                std::string initial_state_filename)
+{
+  Assert(!IsEmulationThreadRunning());
+
+  Log_DevPrintf("Starting emulation thread...");
+  m_emulation_thread_stop_request.store(false);
+  m_emulation_thread = std::thread(&AndroidHostInterface::EmulationThreadEntryPoint, this, initial_surface,
+                                   std::move(initial_filename), std::move(initial_state_filename));
+  m_emulation_thread_started.Wait();
+  if (!m_emulation_thread_start_result.load())
+  {
+    m_emulation_thread.join();
+    Log_ErrorPrint("Failed to start emulation in thread");
+    return false;
+  }
+
+  return true;
+}
+
+void AndroidHostInterface::StopEmulationThread()
+{
+  Assert(IsEmulationThreadRunning());
+  Log_InfoPrint("Stopping emulation thread...");
+  m_emulation_thread_stop_request.store(true);
+  m_emulation_thread.join();
+  Log_InfoPrint("Emulation thread stopped");
+}
+
+void AndroidHostInterface::RunOnEmulationThread(std::function<void()> function, bool blocking)
+{
+  if (!IsEmulationThreadRunning())
+  {
+    function();
+    return;
+  }
+
+  m_callback_mutex.lock();
+  m_callback_queue.push_back(std::move(function));
+
+  if (blocking)
+  {
+    // TODO: Don't spin
+    for (;;)
+    {
+      if (m_callback_queue.empty())
+        break;
+
+      m_callback_mutex.unlock();
+      m_callback_mutex.lock();
+    }
+  }
+
+  m_callback_mutex.unlock();
+}
+
+void AndroidHostInterface::EmulationThreadEntryPoint(ANativeWindow* initial_surface, std::string initial_filename,
+                                                     std::string initial_state_filename)
+{
+  CreateImGuiContext();
+
+  // Create display.
+  m_display = AndroidGLES2HostDisplay::Create(initial_surface);
+  if (!m_display)
+  {
+    Log_ErrorPrint("Failed to create display on emulation thread.");
+    DestroyImGuiContext();
+    m_emulation_thread_start_result.store(false);
+    m_emulation_thread_started.Signal();
+    return;
+  }
+
+  // Create audio stream.
+  m_audio_stream = AndroidAudioStream::Create();
+  if (!m_audio_stream || !m_audio_stream->Reconfigure(44100, 2))
+  {
+    Log_ErrorPrint("Failed to create audio stream on emulation thread.");
+    m_audio_stream.reset();
+    m_display.reset();
+    DestroyImGuiContext();
+    m_emulation_thread_start_result.store(false);
+    m_emulation_thread_started.Signal();
+    return;
+  }
+
+  // Boot system.
+  if (!CreateSystem() || !BootSystem(initial_filename.empty() ? nullptr : initial_filename.c_str(),
+                                     initial_state_filename.empty() ? nullptr : initial_state_filename.c_str()))
+  {
+    Log_ErrorPrintf("Failed to boot system on emulation thread (file:%s state:%s).", initial_filename.c_str(),
+                    initial_state_filename.c_str());
+    m_audio_stream.reset();
+    m_display.reset();
+    DestroyImGuiContext();
+    m_emulation_thread_start_result.store(false);
+    m_emulation_thread_started.Signal();
+    return;
+  }
+
+  // System is ready to go.
+  m_emulation_thread_start_result.store(true);
+  m_emulation_thread_started.Signal();
+
+  ImGui::NewFrame();
+
+  while (!m_emulation_thread_stop_request.load())
+  {
+    // run any events
+    m_callback_mutex.lock();
+    for (;;)
+    {
+      if (m_callback_queue.empty())
+        break;
+
+      auto callback = std::move(m_callback_queue.front());
+      m_callback_queue.pop_front();
+      m_callback_mutex.unlock();
+      callback();
+      m_callback_mutex.lock();
+    }
+    m_callback_mutex.unlock();
+
+    // simulate the system if not paused
+    if (m_system && !m_paused)
+      m_system->RunFrame();
+
+    // rendering
+    {
+      DrawImGui();
+
+      if (m_system)
+        m_system->GetGPU()->ResetGraphicsAPIState();
+
+      ImGui::Render();
+      m_display->Render();
+
+      ImGui::NewFrame();
+
+      if (m_system)
+      {
+        m_system->GetGPU()->RestoreGraphicsAPIState();
+
+        if (m_speed_limiter_enabled)
+          Throttle();
+      }
+    }
+  }
+
+  m_display.reset();
+  m_audio_stream.reset();
+  DestroyImGuiContext();
+}
+
+void AndroidHostInterface::CreateImGuiContext()
+{
+  ImGui::CreateContext();
+
+  ImGui::GetIO().IniFilename = nullptr;
+  // ImGui::GetIO().ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;
+  // ImGui::GetIO().BackendFlags |= ImGuiBackendFlags_HasGamepad;
+}
+
+void AndroidHostInterface::DestroyImGuiContext()
+{
+  ImGui::DestroyContext();
+}
+
+void AndroidHostInterface::DrawImGui()
+{
+  DrawOSDMessages();
+
+  ImGui::Render();
+}
+
+void AndroidHostInterface::AddOSDMessage(const char* message, float duration)
+{
+  OSDMessage msg;
+  msg.text = message;
+  msg.duration = duration;
+
+  std::unique_lock<std::mutex> lock(m_osd_messages_lock);
+  m_osd_messages.push_back(std::move(msg));
+}
+
+void AndroidHostInterface::DrawOSDMessages()
+{
+  constexpr ImGuiWindowFlags window_flags = ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoInputs |
+                                            ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoSavedSettings |
+                                            ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoNav |
+                                            ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoFocusOnAppearing;
+
+  std::unique_lock<std::mutex> lock(m_osd_messages_lock);
+  const float scale = ImGui::GetIO().DisplayFramebufferScale.x;
+
+  auto iter = m_osd_messages.begin();
+  float position_x = 10.0f * scale;
+  float position_y = (10.0f + (m_settings.display_fullscreen ? 0.0f : 20.0f)) * scale;
+  u32 index = 0;
+  while (iter != m_osd_messages.end())
+  {
+    const OSDMessage& msg = *iter;
+    const double time = msg.time.GetTimeSeconds();
+    const float time_remaining = static_cast<float>(msg.duration - time);
+    if (time_remaining <= 0.0f)
+    {
+      iter = m_osd_messages.erase(iter);
+      continue;
+    }
+
+    const float opacity = std::min(time_remaining, 1.0f);
+    ImGui::SetNextWindowPos(ImVec2(position_x, position_y));
+    ImGui::SetNextWindowSize(ImVec2(0.0f, 0.0f));
+    ImGui::PushStyleVar(ImGuiStyleVar_Alpha, opacity);
+
+    if (ImGui::Begin(SmallString::FromFormat("osd_%u", index++), nullptr, window_flags))
+    {
+      ImGui::TextUnformatted(msg.text.c_str());
+      position_y += ImGui::GetWindowSize().y + (4.0f * scale);
+    }
+
+    ImGui::End();
+    ImGui::PopStyleVar();
+    ++iter;
+  }
+}
+
+void AndroidHostInterface::SurfaceChanged(ANativeWindow* window, int format, int width, int height)
+{
+  Log_InfoPrintf("SurfaceChanged %p %d %d %d", window, format, width, height);
+  if (m_display->GetRenderWindow() == window)
+  {
+    m_display->WindowResized();
+    return;
+  }
+
+  m_display->ChangeRenderWindow(window);
+}
+
+extern "C" jint JNI_OnLoad(JavaVM* vm, void* reserved)
+{
+  Log::GetInstance().SetDebugOutputParams(true, nullptr, LOGLEVEL_DEV);
+  s_jvm = vm;
+
+  JNIEnv* env = GetJNIEnv();
+  if ((s_AndroidHostInterface_class = env->FindClass("com/github/stenzek/duckstation/AndroidHostInterface")) == nullptr)
+  {
+    Log_ErrorPrint("AndroidHostInterface class lookup failed");
+    return -1;
+  }
+
+  // Create global reference so it doesn't get cleaned up.
+  s_AndroidHostInterface_class = static_cast<jclass>(env->NewGlobalRef(s_AndroidHostInterface_class));
+  if (!s_AndroidHostInterface_class)
+  {
+    Log_ErrorPrint("Failed to get reference to AndroidHostInterface");
+    return -1;
+  }
+
+  if ((s_AndroidHostInterface_constructor = env->GetMethodID(s_AndroidHostInterface_class, "<init>", "()V")) ==
+        nullptr ||
+      (s_AndroidHostInterface_field_nativePointer =
+         env->GetFieldID(s_AndroidHostInterface_class, "nativePointer", "J")) == nullptr)
+  {
+    Log_ErrorPrint("AndroidHostInterface lookups failed");
+    return -1;
+  }
+
+  return JNI_VERSION_1_6;
+}
+
+#define DEFINE_JNI_METHOD(return_type, name)                                                                           \
+  extern "C" JNIEXPORT return_type JNICALL Java_com_github_stenzek_duckstation_##name(JNIEnv* env)
+
+#define DEFINE_JNI_ARGS_METHOD(return_type, name, ...)                                                                 \
+  extern "C" JNIEXPORT return_type JNICALL Java_com_github_stenzek_duckstation_##name(JNIEnv* env, __VA_ARGS__)
+
+DEFINE_JNI_ARGS_METHOD(jobject, AndroidHostInterface_create, jobject unused)
+{
+  // initialize the java side
+  jobject java_obj = env->NewObject(s_AndroidHostInterface_class, s_AndroidHostInterface_constructor);
+  if (!java_obj)
+  {
+    Log_ErrorPrint("Failed to create Java AndroidHostInterface");
+    return nullptr;
+  }
+
+  jobject java_obj_ref = env->NewGlobalRef(java_obj);
+  Assert(java_obj_ref != nullptr);
+
+  // initialize the C++ side
+  AndroidHostInterface* cpp_obj = new AndroidHostInterface(java_obj_ref);
+  if (!cpp_obj)
+  {
+    // TODO: Do we need to release the original java object reference?
+    Log_ErrorPrint("Failed to create C++ AndroidHostInterface");
+    env->DeleteGlobalRef(java_obj_ref);
+    return nullptr;
+  }
+
+  env->SetLongField(java_obj, s_AndroidHostInterface_field_nativePointer,
+                    static_cast<long>(reinterpret_cast<uintptr_t>(cpp_obj)));
+
+  return java_obj;
+}
+
+DEFINE_JNI_ARGS_METHOD(jboolean, AndroidHostInterface_isEmulationThreadRunning, jobject obj)
+{
+  return GetNativeClass(env, obj)->IsEmulationThreadRunning();
+}
+
+DEFINE_JNI_ARGS_METHOD(jboolean, AndroidHostInterface_startEmulationThread, jobject obj, jobject surface,
+                       jstring filename, jstring state_filename)
+{
+  ANativeWindow* native_surface = ANativeWindow_fromSurface(env, surface);
+  if (!native_surface)
+  {
+    Log_ErrorPrint("ANativeWindow_fromSurface() returned null");
+    return false;
+  }
+
+  return GetNativeClass(env, obj)->StartEmulationThread(native_surface, JStringToString(env, filename),
+                                                        JStringToString(env, state_filename));
+}
+
+DEFINE_JNI_ARGS_METHOD(void, AndroidHostInterface_stopEmulationThread, jobject obj)
+{
+  GetNativeClass(env, obj)->StopEmulationThread();
+}
+
+DEFINE_JNI_ARGS_METHOD(void, AndroidHostInterface_surfaceChanged, jobject obj, jobject surface, jint format, jint width,
+                       jint height)
+{
+  ANativeWindow* native_surface = ANativeWindow_fromSurface(env, surface);
+  if (!native_surface)
+    Log_ErrorPrint("ANativeWindow_fromSurface() returned null");
+
+  AndroidHostInterface* hi = GetNativeClass(env, obj);
+  hi->RunOnEmulationThread(
+    [hi, native_surface, format, width, height]() { hi->SurfaceChanged(native_surface, format, width, height); }, true);
+}
--- a/android/app/src/cpp/android_host_interface.h
+++ b/android/app/src/cpp/android_host_interface.h
@ -0,0 +1,60 @@
+#pragma once
+#include "YBaseLib/Event.h"
+#include "YBaseLib/Timer.h"
+#include "core/host_interface.h"
+#include <atomic>
+#include <deque>
+#include <functional>
+#include <jni.h>
+#include <mutex>
+#include <thread>
+
+struct ANativeWindow;
+
+class AndroidHostInterface final : public HostInterface
+{
+public:
+  AndroidHostInterface(jobject java_object);
+  ~AndroidHostInterface() override;
+
+  void ReportError(const char* message) override;
+  void ReportMessage(const char* message) override;
+  void AddOSDMessage(const char* message, float duration = 2.0f) override;
+
+  bool IsEmulationThreadRunning() const { return m_emulation_thread.joinable(); }
+  bool StartEmulationThread(ANativeWindow* initial_surface, std::string initial_filename,
+                            std::string initial_state_filename);
+  void RunOnEmulationThread(std::function<void()> function, bool blocking = false);
+  void StopEmulationThread();
+
+  void SurfaceChanged(ANativeWindow* window, int format, int width, int height);
+
+private:
+  struct OSDMessage
+  {
+    std::string text;
+    Timer time;
+    float duration;
+  };
+
+  void EmulationThreadEntryPoint(ANativeWindow* initial_surface, std::string initial_filename,
+                                 std::string initial_state_filename);
+
+  void CreateImGuiContext();
+  void DestroyImGuiContext();
+  void DrawImGui();
+  void DrawOSDMessages();
+
+  jobject m_java_object = {};
+
+  std::deque<OSDMessage> m_osd_messages;
+  std::mutex m_osd_messages_lock;
+
+  std::mutex m_callback_mutex;
+  std::deque<std::function<void()>> m_callback_queue;
+
+  std::thread m_emulation_thread;
+  std::atomic_bool m_emulation_thread_stop_request{false};
+  std::atomic_bool m_emulation_thread_start_result{false};
+  Event m_emulation_thread_started;
+};
--- a/android/app/src/cpp/main.cpp
+++ b/android/app/src/cpp/main.cpp
@ -0,0 +1,17 @@
+#include "core/host_interface.h"
+#include <jni.h>
+
+#define DEFINE_JNI_METHOD(return_type, name, ...)                                                                      \
+  extern "C" JNIEXPORT return_type JNICALL Java_com_github_stenzek_duckstation_##name(__VA_ARGS__)
+
+DEFINE_JNI_METHOD(bool, createSystem)
+{
+  return false;
+}
+
+DEFINE_JNI_METHOD(bool, bootSystem, const char* filename, const char* state_filename)
+{
+  return false;
+}
+
+DEFINE_JNI_METHOD(void, runFrame) {}
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.github.stenzek.duckstation">
+
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme"
+        android:requestLegacyExternalStorage="true">
+        <activity
+            android:name=".EmulationActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:label="@string/title_activity_emulation"
+            android:parentActivityName=".MainActivity"
+            android:theme="@style/FullscreenTheme">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value="com.github.stenzek.duckstation.MainActivity" />
+        </activity>
+        <activity
+            android:name=".SettingsActivity"
+            android:label="@string/title_activity_settings"
+            android:parentActivityName=".MainActivity">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value="com.github.stenzek.duckstation.MainActivity" />
+        </activity>
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme.NoActionBar">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
--- a/android/app/src/main/java/com/github/stenzek/duckstation/AndroidHostInterface.java
+++ b/android/app/src/main/java/com/github/stenzek/duckstation/AndroidHostInterface.java
@ -0,0 +1,25 @@
+package com.github.stenzek.duckstation;
+
+import android.view.Surface;
+
+public class AndroidHostInterface
+{
+    private long nativePointer;
+
+    static {
+        System.loadLibrary("duckstation-native");
+    }
+
+    static public native AndroidHostInterface create();
+
+    public AndroidHostInterface(long nativePointer)
+    {
+        this.nativePointer = nativePointer;
+    }
+
+    public native boolean isEmulationThreadRunning();
+    public native boolean startEmulationThread(Surface surface, String filename, String state_filename);
+    public native void stopEmulationThread();
+
+    public native void surfaceChanged(Surface surface, int format, int width, int height);
+}
--- a/android/app/src/main/java/com/github/stenzek/duckstation/EmulationActivity.java
+++ b/android/app/src/main/java/com/github/stenzek/duckstation/EmulationActivity.java
@ -0,0 +1,216 @@
+package com.github.stenzek.duckstation;
+
+import android.annotation.SuppressLint;
+
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.util.Log;
+import android.view.MotionEvent;
+import android.view.SurfaceHolder;
+import android.view.SurfaceView;
+import android.view.View;
+import android.view.MenuItem;
+
+import androidx.core.app.NavUtils;
+
+/**
+ * An example full-screen activity that shows and hides the system UI (i.e.
+ * status bar and navigation/system bar) with user interaction.
+ */
+public class EmulationActivity extends AppCompatActivity implements SurfaceHolder.Callback {
+    /** Interface to the native emulator core */
+    AndroidHostInterface mHostInterface;
+
+    /**
+     * Whether or not the system UI should be auto-hidden after
+     * {@link #AUTO_HIDE_DELAY_MILLIS} milliseconds.
+     */
+    private static final boolean AUTO_HIDE = true;
+
+    /**
+     * If {@link #AUTO_HIDE} is set, the number of milliseconds to wait after
+     * user interaction before hiding the system UI.
+     */
+    private static final int AUTO_HIDE_DELAY_MILLIS = 3000;
+
+    /**
+     * Some older devices needs a small delay between UI widget updates
+     * and a change of the status and navigation bar.
+     */
+    private static final int UI_ANIMATION_DELAY = 300;
+    private final Handler mHideHandler = new Handler();
+    private SurfaceView mContentView;
+    private final Runnable mHidePart2Runnable = new Runnable() {
+        @SuppressLint("InlinedApi")
+        @Override
+        public void run() {
+            // Delayed removal of status and navigation bar
+
+            // Note that some of these constants are new as of API 16 (Jelly Bean)
+            // and API 19 (KitKat). It is safe to use them, as they are inlined
+            // at compile-time and do nothing on earlier devices.
+            mContentView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE
+                    | View.SYSTEM_UI_FLAG_FULLSCREEN
+                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+                    | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
+                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
+                    | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
+        }
+    };
+    private final Runnable mShowPart2Runnable = new Runnable() {
+        @Override
+        public void run() {
+            // Delayed display of UI elements
+            ActionBar actionBar = getSupportActionBar();
+            if (actionBar != null) {
+                actionBar.show();
+            }
+        }
+    };
+    private boolean mVisible;
+    private final Runnable mHideRunnable = new Runnable() {
+        @Override
+        public void run() {
+            hide();
+        }
+    };
+    /**
+     * Touch listener to use for in-layout UI controls to delay hiding the
+     * system UI. This is to prevent the jarring behavior of controls going away
+     * while interacting with activity UI.
+     */
+    private final View.OnTouchListener mDelayHideTouchListener = new View.OnTouchListener() {
+        @Override
+        public boolean onTouch(View view, MotionEvent motionEvent) {
+            if (AUTO_HIDE) {
+                delayedHide(AUTO_HIDE_DELAY_MILLIS);
+            }
+            return false;
+        }
+    };
+
+    @Override
+    public void surfaceCreated(SurfaceHolder holder) {
+    }
+
+    @Override
+    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
+        // Once we get a surface, we can boot.
+        if (mHostInterface.isEmulationThreadRunning()) {
+            mHostInterface.surfaceChanged(holder.getSurface(), format, width, height);
+            return;
+        }
+
+        String filename = new String();
+        String state_filename = new String();
+        if (!mHostInterface.startEmulationThread(holder.getSurface(),filename, state_filename))
+        {
+            Log.e("EmulationActivity", "Failed to start emulation thread");
+            return;
+        }
+    }
+
+    @Override
+    public void surfaceDestroyed(SurfaceHolder holder) {
+        if (!mHostInterface.isEmulationThreadRunning())
+            return;
+
+        Log.i("EmulationActivity", "Stopping emulation thread");
+        mHostInterface.stopEmulationThread();
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.activity_emulation);
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(true);
+        }
+
+        mVisible = true;
+        mContentView = (SurfaceView)findViewById(R.id.fullscreen_content);
+        Log.e("EmulationActivity", "adding callback");
+        mContentView.getHolder().addCallback(this);
+
+
+        // Set up the user interaction to manually show or hide the system UI.
+        mContentView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                toggle();
+            }
+        });
+
+        mHostInterface = AndroidHostInterface.create();
+        if (mHostInterface == null)
+            throw new InstantiationError("Failed to create host interface");
+    }
+
+    @Override
+    protected void onPostCreate(Bundle savedInstanceState) {
+        super.onPostCreate(savedInstanceState);
+
+        // Trigger the initial hide() shortly after the activity has been
+        // created, to briefly hint to the user that UI controls
+        // are available.
+        delayedHide(100);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        int id = item.getItemId();
+        if (id == android.R.id.home) {
+            // This ID represents the Home or Up button.
+            NavUtils.navigateUpFromSameTask(this);
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    private void toggle() {
+        if (mVisible) {
+            hide();
+        } else {
+            show();
+        }
+    }
+
+    private void hide() {
+        // Hide UI first
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            actionBar.hide();
+        }
+        mVisible = false;
+
+        // Schedule a runnable to remove the status and navigation bar after a delay
+        mHideHandler.removeCallbacks(mShowPart2Runnable);
+        mHideHandler.postDelayed(mHidePart2Runnable, UI_ANIMATION_DELAY);
+    }
+
+    @SuppressLint("InlinedApi")
+    private void show() {
+        // Show the system bar
+        mContentView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
+                | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+        mVisible = true;
+
+        // Schedule a runnable to display UI elements after a delay
+        mHideHandler.removeCallbacks(mHidePart2Runnable);
+        mHideHandler.postDelayed(mShowPart2Runnable, UI_ANIMATION_DELAY);
+    }
+
+    /**
+     * Schedules a call to hide() in delay milliseconds, canceling any
+     * previously scheduled calls.
+     */
+    private void delayedHide(int delayMillis) {
+        mHideHandler.removeCallbacks(mHideRunnable);
+        mHideHandler.postDelayed(mHideRunnable, delayMillis);
+    }
+}
--- a/android/app/src/main/java/com/github/stenzek/duckstation/MainActivity.java
+++ b/android/app/src/main/java/com/github/stenzek/duckstation/MainActivity.java
@ -0,0 +1,85 @@
+package com.github.stenzek.duckstation;
+
+import android.Manifest;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+
+import com.google.android.material.floatingactionbutton.FloatingActionButton;
+import com.google.android.material.snackbar.Snackbar;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+
+import android.content.Intent;
+import android.view.View;
+import android.view.Menu;
+import android.view.MenuItem;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        Toolbar toolbar = findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+
+        FloatingActionButton fab = findViewById(R.id.fab);
+        fab.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                /*Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
+                        .setAction("Action", null).show();*/
+                startEmulation("nonexistant.cue");
+            }
+        });
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        // Inflate the menu; this adds items to the action bar if it is present.
+        getMenuInflater().inflate(R.menu.menu_main, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        // Handle action bar item clicks here. The action bar will
+        // automatically handle clicks on the Home/Up button, so long
+        // as you specify a parent activity in AndroidManifest.xml.
+        int id = item.getItemId();
+
+        //noinspection SimplifiableIfStatement
+        if (id == R.id.action_settings) {
+            Intent intent = new Intent(this, SettingsActivity.class);
+            startActivity(intent);
+            return true;
+        }
+
+        return super.onOptionsItemSelected(item);
+    }
+
+    private boolean checkForExternalStoragePermissions() {
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED &&
+                ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED)
+        {
+            return true;
+        }
+
+        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE}, 0);
+        return false;
+    }
+
+    private boolean startEmulation(String bootPath) {
+        if (!checkForExternalStoragePermissions()) {
+            Snackbar.make(findViewById(R.id.fab), "External storage permissions are required to start emulation.", Snackbar.LENGTH_LONG);
+            return false;
+        }
+        Intent intent = new Intent(this, EmulationActivity.class);
+        intent.putExtra("bootPath", bootPath);
+        startActivity(intent);
+        return true;
+    }
+}
--- a/android/app/src/main/java/com/github/stenzek/duckstation/NativeLibrary.java
+++ b/android/app/src/main/java/com/github/stenzek/duckstation/NativeLibrary.java
@ -0,0 +1,12 @@
+package com.github.stenzek.duckstation;
+
+public class NativeLibrary {
+    static
+    {
+        System.loadLibrary("duckstation-native");
+    }
+
+    public native boolean createSystem();
+    public native boolean bootSystem(String filename, String stateFilename);
+    public native void runFrame();
+}
--- a/android/app/src/main/java/com/github/stenzek/duckstation/SettingsActivity.java
+++ b/android/app/src/main/java/com/github/stenzek/duckstation/SettingsActivity.java
@ -0,0 +1,31 @@
+package com.github.stenzek.duckstation;
+
+import android.os.Bundle;
+
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.preference.PreferenceFragmentCompat;
+
+public class SettingsActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.settings_activity);
+        getSupportFragmentManager()
+                .beginTransaction()
+                .replace(R.id.settings, new SettingsFragment())
+                .commit();
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(true);
+        }
+    }
+
+    public static class SettingsFragment extends PreferenceFragmentCompat {
+        @Override
+        public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+            setPreferencesFromResource(R.xml.root_preferences, rootKey);
+        }
+    }
+}
--- a/android/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
+++ b/android/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
--- a/android/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/android/app/src/main/res/drawable/ic_launcher_background.xml
@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#008577"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
--- a/android/app/src/main/res/layout/activity_emulation.xml
+++ b/android/app/src/main/res/layout/activity_emulation.xml
@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#0099cc"
+    tools:context=".EmulationActivity">
+
+    <!-- The primary full-screen view. This can be replaced with whatever view
+         is needed to present your content, e.g. VideoView, SurfaceView,
+         TextureView, etc. -->
+    <SurfaceView
+        android:id="@+id/fullscreen_content"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center"
+        android:keepScreenOn="true" />
+
+</FrameLayout>
--- a/android/app/src/main/res/layout/activity_main.xml
+++ b/android/app/src/main/res/layout/activity_main.xml
@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <com.google.android.material.appbar.AppBarLayout
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:theme="@style/AppTheme.AppBarOverlay">
+
+        <androidx.appcompat.widget.Toolbar
+            android:id="@+id/toolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            android:background="?attr/colorPrimary"
+            app:popupTheme="@style/AppTheme.PopupOverlay" />
+
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <include layout="@layout/content_main"/>
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/fab"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom|end"
+        android:layout_margin="@dimen/fab_margin"
+        app:srcCompat="@android:drawable/ic_dialog_email" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
--- a/android/app/src/main/res/layout/content_main.xml
+++ b/android/app/src/main/res/layout/content_main.xml
@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    app:layout_behavior="@string/appbar_scrolling_view_behavior"
+    tools:showIn="@layout/activity_main"
+    tools:context=".MainActivity">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Hello World!"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/android/app/src/main/res/layout/settings_activity.xml
+++ b/android/app/src/main/res/layout/settings_activity.xml
@ -0,0 +1,9 @@
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <FrameLayout
+        android:id="@+id/settings"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+</LinearLayout>
--- a/android/app/src/main/res/menu/menu_main.xml
+++ b/android/app/src/main/res/menu/menu_main.xml
@ -0,0 +1,9 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:context="com.github.stenzek.duckstation.MainActivity" >
+    <item android:id="@+id/action_settings"
+        android:title="@string/action_settings"
+        android:orderInCategory="100"
+        app:showAsAction="never" />
+</menu>
--- a/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
+++ b/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
--- a/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
+++ b/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
--- a/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
+++ b/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
--- a/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
+++ b/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
--- a/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
+++ b/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
--- a/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
+++ b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
--- a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
+++ b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
--- a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
+++ b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
--- a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
+++ b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
--- a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
+++ b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
--- a/android/app/src/main/res/values/arrays.xml
+++ b/android/app/src/main/res/values/arrays.xml
@ -0,0 +1,68 @@
+<resources>
+    <string-array name="settings_console_region_entries">
+        <item>Auto-Detect</item>
+        <item>NTSC-J (Japan)</item>
+        <item>NTSC-U (US)</item>
+        <item>PAL (Europe, Australia)</item>
+    </string-array>
+    <string-array name="settings_console_region_values">
+        <item>Auto</item>
+        <item>NTSC-J</item>
+        <item>NTSC-U</item>
+        <item>PAL</item>
+    </string-array>
+    <string-array name="settings_cpu_execution_mode_entries">
+        <item>Interpreter (Slowest)</item>
+        <item>Cached Interpreter (Faster)</item>
+        <item>Recompiler (Fastest)</item>
+    </string-array>
+    <string-array name="settings_cpu_execution_mode_values">
+        <item>Interpreter</item>
+        <item>CachedInterpreter</item>
+        <item>Recompiler</item>
+    </string-array>
+    <string-array name="gpu_renderer_entries">
+        <item>Hardware (OpenGL)</item>
+        <item>Software</item>
+    </string-array>
+    <string-array name="gpu_renderer_values">
+        <item>OpenGL</item>
+        <item>Software</item>
+    </string-array>
+    <string-array name="settings_gpu_resolution_scale_entries">
+        <item>1x (1024x512)</item>
+        <item>2x (2048x1024)</item>
+        <item>3x (3072x1536)</item>
+        <item>4x (4096x2048)</item>
+        <item>5x (5120x2560)</item>
+        <item>6x (6144x3072)</item>
+        <item>7x (7168x3584)</item>
+        <item>8x (8192x4096)</item>
+        <item>9x (9216x4608)</item>
+        <item>10x (10240x5120)</item>
+        <item>11x (11264x5632)</item>
+        <item>12x (12288x6144)</item>
+        <item>13x (13312x6656)</item>
+        <item>14x (14336x7168)</item>
+        <item>15x (15360x7680)</item>
+        <item>16x (16384x8192)</item>
+    </string-array>
+    <string-array name="settings_gpu_resolution_scale_values">
+        <item>1</item>
+        <item>2</item>
+        <item>3</item>
+        <item>4</item>
+        <item>5</item>
+        <item>6</item>
+        <item>7</item>
+        <item>8</item>
+        <item>9</item>
+        <item>10</item>
+        <item>11</item>
+        <item>12</item>
+        <item>13</item>
+        <item>14</item>
+        <item>15</item>
+        <item>16</item>
+    </string-array>
+</resources>
--- a/android/app/src/main/res/values/attrs.xml
+++ b/android/app/src/main/res/values/attrs.xml
@ -0,0 +1,12 @@
+<resources>
+
+    <!-- Declare custom theme attributes that allow changing which styles are
+         used for button bars depending on the API level.
+         ?android:attr/buttonBarStyle is new as of API 11 so this is
+         necessary to support previous API levels. -->
+    <declare-styleable name="ButtonBarContainerTheme">
+        <attr name="metaButtonBarStyle" format="reference" />
+        <attr name="metaButtonBarButtonStyle" format="reference" />
+    </declare-styleable>
+
+</resources>
--- a/android/app/src/main/res/values/colors.xml
+++ b/android/app/src/main/res/values/colors.xml
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#008577</color>
+    <color name="colorPrimaryDark">#00574B</color>
+    <color name="colorAccent">#D81B60</color>
+
+    <color name="black_overlay">#66000000</color>
+</resources>
--- a/android/app/src/main/res/values/dimens.xml
+++ b/android/app/src/main/res/values/dimens.xml
@ -0,0 +1,3 @@
+<resources>
+    <dimen name="fab_margin">16dp</dimen>
+</resources>
--- a/android/app/src/main/res/values/strings.xml
+++ b/android/app/src/main/res/values/strings.xml
@ -0,0 +1,42 @@
+<resources>
+    <string name="app_name">DuckStation</string>
+    <string name="action_settings">Settings</string>
+    <string name="title_activity_settings">Settings</string>
+
+    <!-- Preference Titles -->
+    <string name="settings_console_header">Console</string>
+    <string name="settings_behavior_header">Behavior</string>
+    <string name="settings_host_synchronization_header">Host Synchronization</string>
+    <string name="settings_cpu_header">CPU</string>
+    <string name="settings_gpu_header">GPU</string>
+
+    <!-- Console Preferences -->
+    <string name="settings_console_region">Region</string>
+    <string name="settings_console_region_default">Auto</string>
+    <string name="settings_console_bios_path">BIOS Path</string>
+    <string name="settings_console_tty_output">Enable TTY Output</string>
+    <string name="settings_console_fast_boot">Fast Boot</string>
+
+    <!-- Behavior Preferences -->
+    <string name="settings_behavior_enable_speed_limiter">Enable Speed Limiter</string>
+    <string name="settings_behavior_pause_on_start">Pause On Start</string>
+
+    <!-- Host Synchronization Preferences -->
+    <string name="settings_host_synchronization_sync_to_audio">Sync To Audio</string>
+    <string name="settings_host_synchronization_sync_to_video">Sync To Video</string>
+
+    <!-- CPU Preferences -->
+    <string name="settings_cpu_execution_mode">Execution Mode</string>
+    <string name="settings_cpu_execution_mode_default">Interpreter</string>
+
+    <!-- GPU Preferences -->
+    <string name="settings_gpu_renderer">Renderer</string>
+    <string name="settings_gpu_renderer_default">OpenGL</string>
+    <string name="settings_gpu_display_linear_filtering">Display Linear Filtering</string>
+    <string name="settings_gpu_resolution_scale">Resolution Scale</string>
+    <string name="settings_gpu_true_color">True 24-Bit Color (Disables Dithering)</string>
+
+    <string name="title_activity_emulation">EmulationActivity</string>
+    <string name="dummy_button">Dummy Button</string>
+    <string name="dummy_content">DUMMY\nCONTENT</string>
+</resources>
--- a/android/app/src/main/res/values/styles.xml
+++ b/android/app/src/main/res/values/styles.xml
@ -0,0 +1,32 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+    <style name="AppTheme.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+    </style>
+
+    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
+
+    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
+
+    <style name="FullscreenTheme" parent="AppTheme">
+        <item name="android:actionBarStyle">@style/FullscreenActionBarStyle</item>
+        <item name="android:windowActionBarOverlay">true</item>
+        <item name="android:windowBackground">@null</item>
+        <item name="metaButtonBarStyle">?android:attr/buttonBarStyle</item>
+        <item name="metaButtonBarButtonStyle">?android:attr/buttonBarButtonStyle</item>
+    </style>
+
+    <style name="FullscreenActionBarStyle" parent="Widget.AppCompat.ActionBar">
+        <item name="android:background">@color/black_overlay</item>
+    </style>
+
+</resources>
--- a/android/app/src/main/res/xml/root_preferences.xml
+++ b/android/app/src/main/res/xml/root_preferences.xml
@ -0,0 +1,104 @@
+<!--
+  ~ Copyright 2018 The app Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <PreferenceCategory app:title="@string/settings_console_header">
+
+        <ListPreference
+            app:key="Console/Region"
+            app:title="@string/settings_console_region"
+            app:entries="@array/settings_console_region_entries"
+            app:entryValues="@array/settings_console_region_values"
+            app:defaultValue="@string/settings_console_region_default"
+            app:useSimpleSummaryProvider="true" />
+
+        <EditTextPreference
+            app:key="BIOS/Path"
+            app:title="@string/settings_console_bios_path"
+            app:useSimpleSummaryProvider="true" />
+
+        <SwitchPreferenceCompat
+            app:key="BIOS/PatchTTYEnable"
+            app:title="@string/settings_console_tty_output"
+            app:useSimpleSummaryProvider="true" />
+
+        <SwitchPreferenceCompat
+            app:key="BIOS/PatchFastBoot"
+            app:title="@string/settings_console_fast_boot"
+            app:useSimpleSummaryProvider="true" />
+
+    </PreferenceCategory>
+
+    <PreferenceCategory app:title="@string/settings_behavior_header">
+        <SwitchPreferenceCompat
+            app:key="General/SpeedLimiterEnabled"
+            app:title="@string/settings_behavior_enable_speed_limiter"
+            app:useSimpleSummaryProvider="true" />
+        <SwitchPreferenceCompat
+            app:key="General/StartPaused"
+            app:title="@string/settings_behavior_pause_on_start"
+            app:useSimpleSummaryProvider="true" />
+        <SwitchPreferenceCompat
+            app:key="General/SyncToAudio"
+            app:title="@string/settings_host_synchronization_sync_to_audio"
+            app:defaultValue="true"
+            app:useSimpleSummaryProvider="true" />
+        <SwitchPreferenceCompat
+            app:key="General/SyncToVideo"
+            app:title="@string/settings_host_synchronization_sync_to_video"
+            app:defaultValue="true"
+            app:useSimpleSummaryProvider="true" />
+    </PreferenceCategory>
+
+    <PreferenceCategory app:title="@string/settings_cpu_header">
+        <ListPreference
+            app:key="CPU/ExecutionMode"
+            app:title="@string/settings_cpu_execution_mode"
+            app:entries="@array/settings_cpu_execution_mode_entries"
+            app:entryValues="@array/settings_cpu_execution_mode_values"
+            app:defaultValue="@string/settings_cpu_execution_mode_default"
+            app:useSimpleSummaryProvider="true" />
+    </PreferenceCategory>
+    <PreferenceCategory app:title="@string/settings_gpu_header">
+
+        <ListPreference
+            app:key="GPU/Renderer"
+            app:title="@string/settings_gpu_renderer"
+            app:entries="@array/gpu_renderer_entries"
+            app:entryValues="@array/gpu_renderer_values"
+            app:defaultValue="@string/settings_gpu_renderer_default"/>
+
+        <ListPreference
+            app:key="GPU/ResolutionScale"
+            app:title="@string/settings_gpu_resolution_scale"
+            app:entries="@array/settings_gpu_resolution_scale_entries"
+            app:entryValues="@array/settings_gpu_resolution_scale_values"
+            app:defaultValue="@string/settings_gpu_renderer_default"/>
+        <SwitchPreferenceCompat
+            app:key="GPU/TrueColor"
+            app:title="@string/settings_gpu_true_color"
+            app:defaultValue="true"/>
+
+        <SwitchPreferenceCompat
+            app:key="Display/LinearFiltering"
+            app:title="@string/settings_gpu_display_linear_filtering"
+            app:defaultValue="true"/>
+
+    </PreferenceCategory>
+
+</PreferenceScreen>
--- a/android/app/src/test/java/com/github/stenzek/duckstation/ExampleUnitTest.java
+++ b/android/app/src/test/java/com/github/stenzek/duckstation/ExampleUnitTest.java
@ -0,0 +1,17 @@
+package com.github.stenzek.duckstation;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}
--- a/android/build.gradle
+++ b/android/build.gradle
@ -0,0 +1,27 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+        
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.5.2'
+        
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+        
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
--- a/android/gradle.properties
+++ b/android/gradle.properties
@ -0,0 +1,20 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Automatically convert third-party libraries to use AndroidX
+android.enableJetifier=true
+
--- a/android/gradle/wrapper/gradle-wrapper.jar
+++ b/android/gradle/wrapper/gradle-wrapper.jar
--- a/android/gradle/wrapper/gradle-wrapper.properties
+++ b/android/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,6 @@
+#Wed Nov 27 22:04:24 AEST 2019
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
--- a/android/gradlew
+++ b/android/gradlew
@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
--- a/android/gradlew.bat
+++ b/android/gradlew.bat
@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/android/settings.gradle
+++ b/android/settings.gradle
@ -0,0 +1,2 @@
+include ':app'
+rootProject.name='DuckStation'
				`@ -0,0 +1 @@`
				`include(${CMAKE_CURRENT_LIST_DIR}/ECMFindModuleHelpers.cmake)`