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Initial Qt setup
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wheremyfoodat committed Sep 27, 2023
1 parent 8995bd2 commit 8aceb49
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46 changes: 46 additions & 0 deletions .github/workflows/Qt_Build.yml
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name: Windows Build (Qt)

on:
push:
branches:
- master
pull_request:

env:
# Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
BUILD_TYPE: Release

jobs:
build:
# The CMake configure and build commands are platform agnostic and should work equally
# well on Windows or Mac. You can convert this to a matrix build if you need
# cross-platform coverage.
# See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
runs-on: windows-latest

steps:
- uses: actions/checkout@v2
- name: Fetch submodules
run: git submodule update --init --recursive

- name: Setup Vulkan SDK
uses: humbletim/[email protected]
with:
vulkan-query-version: latest
vulkan-use-cache: true
vulkan-components: Vulkan-Headers, Vulkan-Loader, Glslang

- name: Configure CMake
# Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
# See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DENABLE_USER_BUILD=ON -DENABLE_QT_GUI=ON

- name: Build
# Build your program with the given configuration
run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}

- name: Upload executable
uses: actions/upload-artifact@v2
with:
name: Windows executable
path: './build/Release/Alber.exe'
24 changes: 24 additions & 0 deletions CMakeLists.txt
Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,8 @@ option(ENABLE_USER_BUILD "Make a user-facing build. These builds have various as
option(ENABLE_HTTP_SERVER "Enable HTTP server. Used for Discord bot support" OFF)
option(ENABLE_DISCORD_RPC "Compile with Discord RPC support (disabled by default)" ON)
option(ENABLE_LUAJIT "Enable scripting with the Lua programming language" ON)
option(ENABLE_QT_GUI "Enable the Qt GUI. If not selected then the emulator uses a minimal SDL-based UI instead" OFF)
option(USE_SYSTEM_QT "Use your own version of Qt instead of automatically downloading one" OFF)

include_directories(${PROJECT_SOURCE_DIR}/include/)
include_directories(${PROJECT_SOURCE_DIR}/include/kernel)
Expand All @@ -62,6 +64,23 @@ if(ENABLE_DISCORD_RPC AND NOT ANDROID)
include_directories(third_party/discord-rpc/include)
endif()

if (ENABLE_QT_GUI)
set(ARCHITECTURE "x86_64")

if (NOT USE_SYSTEM_QT)
# Shout-out to whoever made this
include(third_party/CMakeModules/install_qt.cmake)
download_qt(6.2.0)
endif()

find_package(Qt6 REQUIRED COMPONENTS Widgets)

# We can't use qt_standard_project_setup since it's Qt 6.3+ and we don't need to set the minimum that high
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)
endif()

set(SDL_STATIC ON CACHE BOOL "" FORCE)
set(SDL_SHARED OFF CACHE BOOL "" FORCE)
set(SDL_TEST OFF CACHE BOOL "" FORCE)
Expand Down Expand Up @@ -362,6 +381,11 @@ if(ENABLE_VULKAN)
target_link_libraries(Alber PRIVATE Vulkan::Vulkan resources_renderer_vk)
endif()

if(ENABLE_VULKAN)
target_compile_definitions(Alber PUBLIC "PANDA3DS_ENABLE_QT=1")
target_link_libraries(Alber PRIVATE Qt6::Widgets)
endif()

if(GPU_DEBUG_INFO)
target_compile_definitions(Alber PRIVATE GPU_DEBUG_INFO=1)
endif()
Expand Down
3 changes: 2 additions & 1 deletion src/main.cpp
Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
#include "emulator.hpp"
#include <QApplication>

int main(int argc, char *argv[]) {
Emulator emu;
Expand All @@ -16,4 +17,4 @@ int main(int argc, char *argv[]) {
}

emu.run();
}
}
104 changes: 104 additions & 0 deletions third_party/CMakeModules/install_qt.cmake
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# Adapted from https://github.com/citra-emu/citra/blob/master/CMakeModules/DownloadExternals.cmake

# This function downloads Qt using aqt. The path of the downloaded content will be added to the CMAKE_PREFIX_PATH.
# Params:
# target: Qt dependency to install. Specify a version number to download Qt, or "tools_(name)" for a specific build tool.
function(download_qt target)
if (target MATCHES "tools_.*")
set(DOWNLOAD_QT_TOOL ON)
else()
set(DOWNLOAD_QT_TOOL OFF)
endif()

# Determine installation parameters for OS, architecture, and compiler
if (WIN32)
set(host "windows")
set(type "desktop")
if (NOT DOWNLOAD_QT_TOOL)
if (MINGW)
set(arch "win64_mingw")
set(arch_path "mingw_64")
elseif (MSVC)
if ("arm64" IN_LIST ARCHITECTURE)
set(arch_path "msvc2019_arm64")
elseif ("x86_64" IN_LIST ARCHITECTURE)
set(arch_path "msvc2019_64")
else()
message(FATAL_ERROR "Unsupported bundled Qt architecture. Enable USE_SYSTEM_QT and provide your own.")
endif()
set(arch "win64_${arch_path}")
else()
message(FATAL_ERROR "Unsupported bundled Qt toolchain. Enable USE_SYSTEM_QT and provide your own.")
endif()
endif()
elseif (APPLE)
set(host "mac")
if (IOS AND NOT DOWNLOAD_QT_TOOL)
set(type "ios")
set(arch "ios")
set(arch_path "ios")
set(host_arch_path "macos")
else()
set(type "desktop")
set(arch "clang_64")
set(arch_path "macos")
endif()
else()
set(host "linux")
set(type "desktop")
set(arch "gcc_64")
set(arch_path "linux")
endif()

get_external_prefix(qt base_path)
file(MAKE_DIRECTORY "${base_path}")

if (DOWNLOAD_QT_TOOL)
set(prefix "${base_path}/Tools")
set(install_args install-tool --outputdir ${base_path} ${host} desktop ${target})
else()
set(prefix "${base_path}/${target}/${arch_path}")
if (host_arch_path)
set(host_flag "--autodesktop")
set(host_prefix "${base_path}/${target}/${host_arch_path}")
endif()
set(install_args install-qt --outputdir ${base_path} ${host} ${type} ${target} ${arch} ${host_flag}
-m qtmultimedia --archives qttranslations qttools qtsvg qtbase)
endif()

if (NOT EXISTS "${prefix}")
message(STATUS "Downloading binaries for Qt...")
if (WIN32)
set(aqt_path "${base_path}/aqt.exe")
file(DOWNLOAD
https://github.com/miurahr/aqtinstall/releases/download/v3.1.7/aqt.exe
${aqt_path} SHOW_PROGRESS)
execute_process(COMMAND ${aqt_path} ${install_args}
WORKING_DIRECTORY ${base_path})
else()
# aqt does not offer binary releases for other platforms, so download and run from pip.
set(aqt_install_path "${base_path}/aqt")
file(MAKE_DIRECTORY "${aqt_install_path}")

execute_process(COMMAND python3 -m pip install --target=${aqt_install_path} aqtinstall
WORKING_DIRECTORY ${base_path})
execute_process(COMMAND ${CMAKE_COMMAND} -E env PYTHONPATH=${aqt_install_path} python3 -m aqt ${install_args}
WORKING_DIRECTORY ${base_path})
endif()
endif()

message(STATUS "Using downloaded Qt binaries at ${prefix}")

# Add the Qt prefix path so CMake can locate it.
list(APPEND CMAKE_PREFIX_PATH "${prefix}")
set(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} PARENT_SCOPE)

if (DEFINED host_prefix)
message(STATUS "Using downloaded host Qt binaries at ${host_prefix}")
set(QT_HOST_PATH "${host_prefix}" CACHE STRING "")
endif()
endfunction()

function(get_external_prefix lib_name prefix_var)
set(${prefix_var} "${CMAKE_BINARY_DIR}/externals/${lib_name}" PARENT_SCOPE)
endfunction()

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