Add the linux demo. (#77)

.github/workflows/build.yml

@@ -284,7 +284,7 @@ jobs:
 
       - name: Build Linux
         run: |
-          node build_tgfx -DTGFX_USE_SWIFTSHADER=ON
+          node build_tgfx -s ./linux Hello2D -o ./out/release/linux -a x64
 
       - name: Save Third-Party Cache
         if: ${{ (github.event_name == 'push') && (steps.third-party-cache.outputs.cache-hit != 'true') }}

README.md

@@ -268,6 +268,27 @@ pack the generated `.wasm` file into the final web program. This is because comm
 usually ignore the `.wasm` file. Moreover, remember to upload the `.wasm` file to a server, enabling 
 users to access it from the network.
 
+### Linux
+
+When running Linux, the system usually lacks GPU hardware support. Therefore, we utilize the
+[**SwiftShader**](https://github.com/google/swiftshader) library to emulate the GPU rendering 
+environment. Since SwiftShader relies on certain X11 header files, it is necessary to install the 
+following packages before building the demo project:
+
+```
+yum install libX11-devel --nogpg
+```
+
+Next, execute the following commands in the linux/ directory:
+
+```
+cmake -B ./build -DCMAKE_BUILD_TYPE=Release
+cmake --build ./build -- -j 12
+```
+
+You will get the demo executable file in the build directory. You also have the option of opening
+the `linux/` directory in CLion and building the demo project directly in the IDE.
+
 ### Windows
 
 To start, open the `win/` directory in CLion.  Next, open the `File->Setting` panel and navigate to 

codeformat.sh

@@ -1,4 +1,6 @@
 #!/usr/bin/env bash
+cd $(dirname $0)
+
 if [[ $(uname) == 'Darwin' ]]; then
   MAC_REQUIRED_TOOLS="python3"
   for TOOL in ${MAC_REQUIRED_TOOLS[@]}; do
@@ -26,24 +28,24 @@ echo "----begin to scan code format----"
 find include -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
 find src -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
 find drawers -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
-find test -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
-find qt -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
-find ios -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
-find mac -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
-find linux -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
-find win -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
-find web -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
-find android -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
+find test/src -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
+find qt/src -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
+find ios/Hello2D -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
+find mac/Hello2D -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
+find linux/src -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
+find win/src -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
+find web/demo/src -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
+find android/app/src -name "*.cpp" -print -o -name "*.c" -print -o -name "*.h" -print  -o -name "*.mm" -print  -o -name "*.m" -print | xargs clang-format -i
 
 git diff
 result=`git diff`
 if [[ $result =~ "diff" ]]
 then
-    echo "----Failed to pass coding specification----"
+    echo "----Failed to pass the code format check----"
     exit 1
 else
-    echo "----Pass coding specification----"
+    echo "----Complete the code format check-----"
 fi
 
-echo "----Complete the scan code format-----"
+
 

linux/CMakeLists.txt

@@ -0,0 +1,54 @@
+cmake_minimum_required(VERSION 3.13)
+project(Hello2D)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+if (NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE "Release")
+endif ()
+
+if (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" OR $CMAKE_SYSTEM_PROCESSOR STREQUAL "amd64")
+    set(ARCH x64)
+elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64" OR CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64")
+    set(ARCH arm64)
+else ()
+    set(ARCH x86)
+endif ()
+
+file(GLOB SWIFTSHADER_LIBS ../vendor/swiftshader/mac/${ARCH}/*.${CMAKE_SHARED_LIBRARY_SUFFIX})
+list(APPEND HELLO_2D_LIBS ${SWIFTSHADER_LIBS})
+list(APPEND HELLO_2D_INCLUDES ../vendor/swiftshader/include)
+
+if (APPLE)
+    find_library(APPLICATION_SERVICES_FRAMEWORK ApplicationServices REQUIRED)
+    list(APPEND HELLO_2D_LIBS ${APPLICATION_SERVICES_FRAMEWORK})
+    find_library(QUARTZ_CORE QuartzCore REQUIRED)
+    list(APPEND HELLO_2D_LIBS ${QUARTZ_CORE})
+    find_library(COCOA Cocoa REQUIRED)
+    list(APPEND HELLO_2D_LIBS ${COCOA})
+    find_library(FOUNDATION Foundation REQUIRED)
+    list(APPEND HELLO_2D_LIBS ${FOUNDATION})
+    find_library(ICONV_LIBRARIES NAMES iconv libiconv libiconv-2 c)
+    list(APPEND HELLO_2D_LIBS ${ICONV_LIBRARIES})
+    find_library(CORE_MEDIA CoreMedia)
+    list(APPEND HELLO_2D_LIBS ${CORE_MEDIA})
+else ()
+    find_package(Threads)
+    list(APPEND HELLO_2D_LIBS ${CMAKE_THREAD_LIBS_INIT})
+    list(APPEND HELLO_2D_LIBS dl)
+    list(APPEND HELLO_2D_COMPILE_OPTIONS -fPIC -pthread)
+endif ()
+
+set(TGFX_BUILD_DRAWERS ON)
+set(TGFX_USE_SWIFTSHADER ON)
+set(TGFX_USE_FREETYPE ON)
+
+set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../ ./tgfx)
+
+file(GLOB_RECURSE HELLO_2D_SOURCE_FILES src/*.*)
+add_executable(Hello2D ${HELLO_2D_SOURCE_FILES})
+target_include_directories(Hello2D PRIVATE ${HELLO_2D_INCLUDES} src)
+target_link_libraries(Hello2D tgfx-drawers tgfx ${HELLO_2D_LIBS})
+

linux/src/main.cpp

@@ -0,0 +1,87 @@
+/////////////////////////////////////////////////////////////////////////////////////////////////
+//
+//  Tencent is pleased to support the open source community by making tgfx available.
+//
+//  Copyright (C) 2023 THL A29 Limited, a Tencent company. All rights reserved.
+//
+//  Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
+//  in compliance with the License. You may obtain a copy of the License at
+//
+//      https://opensource.org/licenses/BSD-3-Clause
+//
+//  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.
+//
+/////////////////////////////////////////////////////////////////////////////////////////////////
+
+#include <filesystem>
+#include <fstream>
+#include "drawers/Drawer.h"
+#include "tgfx/gpu/Surface.h"
+#include "tgfx/opengl/GLDevice.h"
+#include "tgfx/platform/Print.h"
+
+static std::string GetRootPath() {
+  std::filesystem::path filePath = __FILE__;
+  auto dir = filePath.parent_path().string();
+  return std::filesystem::path(dir + "/../..").lexically_normal();
+}
+
+static void SaveFile(std::shared_ptr<tgfx::Data> data, const std::string& output) {
+  std::filesystem::path path = output;
+  std::filesystem::create_directories(path.parent_path());
+  std::ofstream out(path);
+  out.write(reinterpret_cast<const char*>(data->data()),
+            static_cast<std::streamsize>(data->size()));
+  out.close();
+}
+
+int main() {
+  auto rootPath = GetRootPath();
+  drawers::AppHost appHost(720, 720, 2.0f);
+  auto image = tgfx::Image::MakeFromFile(rootPath + "resources/assets/bridge.jpg");
+  appHost.addImage("bridge", std::move(image));
+  auto typeface = tgfx::Typeface::MakeFromPath(rootPath + "resources/font/NotoSansSC-Regular.otf");
+  appHost.addTypeface("default", std::move(typeface));
+  typeface = tgfx::Typeface::MakeFromPath(rootPath + "resources/font/NotoColorEmoji.ttf");
+  appHost.addTypeface("emoji", std::move(typeface));
+
+  auto device = tgfx::GLDevice::Make();
+  if (device == nullptr) {
+    tgfx::PrintError("Failed to create the Device!");
+    return -1;
+  }
+  auto context = device->lockContext();
+  if (context == nullptr) {
+    tgfx::PrintError("Failed to lock the Context!");
+    return -1;
+  }
+  auto surface = tgfx::Surface::Make(context, appHost.width(), appHost.height());
+  auto canvas = surface->getCanvas();
+  auto drawerNames = drawers::Drawer::Names();
+  for (auto& name : drawerNames) {
+    auto drawer = drawers::Drawer::GetByName(name);
+    canvas->clear();
+    drawer->draw(canvas, &appHost);
+    tgfx::Bitmap bitmap = {};
+    bitmap.allocPixels(surface->width(), surface->height());
+    auto pixels = bitmap.lockPixels();
+    auto success = surface->readPixels(bitmap.info(), pixels);
+    bitmap.unlockPixels();
+    if (!success) {
+      tgfx::PrintError("Failed to readPixels!");
+      return -1;
+    }
+    auto data = bitmap.encode();
+    if (data == nullptr) {
+      tgfx::PrintError("Failed to encode bitmap!");
+      return -1;
+    }
+    SaveFile(data, "out/" + name + ".png");
+  }
+  device->unlock();
+  tgfx::PrintLog("All images have been saved to the 'out/' directory");
+  return 0;
+}