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本文详细代码需订阅下面专栏获取(订阅后私信邮箱+项目名):
https://blog.csdn.net/m0_68036862/category_12333038.html
目录
本篇Codelab主要介绍如何使用XComponent组件调用NAPI来创建EGL/GLES环境,实现在主页面绘制一个正方形,并可以改变正方形的颜色。本篇Codelab使用Native C++模板创建。
如图所示,点击绘制矩形按钮,XComponent组件绘制区域中渲染出一个正方形,点击绘制区域,正方形显示另一种颜色,点击绘制矩形按钮正方形还原至初始绘制的颜色。
我们首先需要完成HarmonyOS开发环境搭建,可参照如下步骤进行。
本篇Codelab只对核心代码进行讲解,对于完整代码,我们会在源码下载或gitee中提供。
使用Native C++模板创建项目会自动生成cpp文件夹、types文件夹、CMakeList.txt文件,开发者可以根据实际情况自行添加修改其他文件及文件夹。
├──entry/src/main
│ ├──cpp // C++代码区
│ │ ├──CMakeLists.txt // CMake配置文件
│ │ ├──napi_init.cpp // C++源代码
│ │ ├──common
│ │ │ └──common.h // 常量定义文件
│ │ ├──manager // 生命周期管理模块
│ │ │ ├──plugin_manager.cpp
│ │ │ └──plugin_manager.h
│ │ ├──render // 渲染模块
│ │ │ ├──egl_core.cpp
│ │ │ ├──egl_core.h
│ │ │ ├──plugin_render.cpp
│ │ │ └──plugin_render.h
│ │ └──types // 接口存放文件夹
│ │ └──libhello
│ │ ├──index.d.ts // 接口文件
│ │ └──oh-package.json5 // 接口注册配置文件
│ └──ets // 代码区
│ ├──common
│ │ └──CommonConstants.ets // 常量定义文件
│ ├──entryability
│ │ └──EntryAbility.ts // 程序入口类
│ └──pages // 页面文件
│ └──Index.ets // 主界面
└──entry/src/main/resources // 资源文件目录
应用架构如图所示。C++侧代码用于实现业务逻辑,ArkTS侧代码用于展示前端界面以及调用相关方法。
主界面由标题、绘制区域、按钮组成。Index.ets文件完成界面实现,使用Column及Row容器组件进行布局。
// Index.ets
@Entry
@Component
struct Index {
...
build() {
Column() {
Row() {
...
}
.height($r('app.float.title_height'))
Column() {
XComponent({
...
})
}
.height(CommonConstants.XCOMPONENT_HEIGHT)
Row() {
Button($r('app.string.button_text'))
.fontSize($r('app.float.button_font_size'))
.fontWeight(CommonConstants.FONT_WEIGHT)
}
.width(CommonConstants.FULL_PARENT)
}
.width(CommonConstants.FULL_PARENT)
.height(CommonConstants.FULL_PARENT)
}
}
ArkTS侧方法调用步骤如下:
// Index.ets
// 导入动态链接库
import nativerender from 'libnativerender.so';@Entry
@Component
struct Index {
// XComponent实例对象的context
private xComponentContext: Record<string, () => void> = {};
...
build() {
...
// 增加XComponent组件
XComponent({
id: CommonConstants.XCOMPONENT_ID,
type: CommonConstants.XCOMPONENT_TYPE,
libraryname: CommonConstants.XCOMPONENT_LIBRARY_NAME
})
.onLoad((xComponentContext?: object | Record<string, () => void>) => {
if (xComponentContext) {
this.xComponentContext = xComponentContext as Record<string, () => void>;
}
})
...
// 增加Button组件
Button($r('app.string.button_text'))
.onClick(() => {
if (this.xComponentContext) {
this.xComponentContext.drawRectangle();
}
})
...
}
}
初始化环境,包括初始化窗口display、确定可用的surface配置、创建渲染区域surface、创建并关联上下文等。
// egl_core.cpp
bool EGLCore::EglContextInit(void *window, int width, int height)
{
OH_LOG_Print(LOG_APP, LOG_INFO, LOG_PRINT_DOMAIN, "EGLCore", "EglContextInit execute");
if ((nullptr == window) || (0 >= width) || (0 >= height)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "EglContextInit: param error");
return false;
}m_width = width;
m_height = height;
if (0 < m_width) {
// 计算绘制矩形宽度百分比
m_widthPercent = FIFTY_PERCENT * m_height / m_width;
}
m_eglWindow = static_cast<EGLNativeWindowType>(window);// 初始化display
m_eglDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (EGL_NO_DISPLAY == m_eglDisplay) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "eglGetDisplay: unable to get EGL display");
return false;
}EGLint majorVersion;
EGLint minorVersion;
if (!eglInitialize(m_eglDisplay, &majorVersion, &minorVersion)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore",
"eglInitialize: unable to get initialize EGL display");
return false;
}// 选择配置
const EGLint maxConfigSize = 1;
EGLint numConfigs;
if (!eglChooseConfig(m_eglDisplay, ATTRIB_LIST, &m_eglConfig, maxConfigSize, &numConfigs)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "eglChooseConfig: unable to choose configs");
return false;
}// 创建环境
return CreateEnvironment();
}bool EGLCore::CreateEnvironment()
{
// 创建surface
if (nullptr == m_eglWindow) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "m_eglWindow is null");
return false;
}
m_eglSurface = eglCreateWindowSurface(m_eglDisplay, m_eglConfig, m_eglWindow, NULL);if (nullptr == m_eglSurface) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore",
"eglCreateWindowSurface: unable to create surface");
return false;
}// 创建context
m_eglContext = eglCreateContext(m_eglDisplay, m_eglConfig, EGL_NO_CONTEXT, CONTEXT_ATTRIBS);
if (!eglMakeCurrent(m_eglDisplay, m_eglSurface, m_eglSurface, m_eglContext)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "eglMakeCurrent failed");
return false;
}// 创建program
m_program = CreateProgram(VERTEX_SHADER, FRAGMENT_SHADER);
if (PROGRAM_ERROR == m_program) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "CreateProgram: unable to create program");
return false;
}
return true;
}
使用EGL渲染正方形。实现一个渲染函数,通过调用EGL相关API进行绘制。绘制颜色使用小数表示,需要将十六进制颜色转换成十进制数值除以255计算。例如#182431转换十进制分别为24/36/49。
// common.h
/**
* 绘制矩形颜色 #7E8FFB
*/
const GLfloat DRAW_COLOR[] = { 126.0f / 255, 143.0f / 255, 251.0f / 255, 1.0f };/**
* 绘制背景颜色 #182431
*/
const GLfloat BACKGROUND_COLOR[] = { 24.0f / 255, 36.0f / 255, 49.0f / 255, 1.0f };/**
* 绘制背景顶点
*/
const GLfloat BACKGROUND_RECTANGLE_VERTICES[] = {
-1.0f, 1.0f,
1.0f, 1.0f,
1.0f, -1.0f,
-1.0f, -1.0f
};// egl_core.cpp
void EGLCore::Draw()
{
m_flag = false;
OH_LOG_Print(LOG_APP, LOG_INFO, LOG_PRINT_DOMAIN, "EGLCore", "Draw");// 绘制准备工作
GLint position = PrepareDraw();
if (POSITION_ERROR == position) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "Draw get position failed");
return;
}// 绘制背景
if (!ExecuteDraw(position, BACKGROUND_COLOR, BACKGROUND_RECTANGLE_VERTICES,
sizeof(BACKGROUND_RECTANGLE_VERTICES))) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "Draw execute draw background failed");
return;
}// 确定绘制矩形的顶点,使用绘制区域的百分比表示
const GLfloat rectangleVertices[] = {
-m_widthPercent, FIFTY_PERCENT,
m_widthPercent, FIFTY_PERCENT,
m_widthPercent, -FIFTY_PERCENT,
-m_widthPercent, -FIFTY_PERCENT
};// 绘制矩形
if (!ExecuteDraw(position, DRAW_COLOR, rectangleVertices, sizeof(rectangleVertices))) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "Draw execute draw rectangle failed");
return;
}// 绘制后操作
if (!FinishDraw()) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "Draw FinishDraw failed");
return;
}// 标记已绘制
m_flag = true;
}// 绘制前准备,获取position,创建成功时position值从0开始
GLint EGLCore::PrepareDraw()
{
if ((nullptr == m_eglDisplay) || (nullptr == m_eglSurface) || (nullptr == m_eglContext) ||
(!eglMakeCurrent(m_eglDisplay, m_eglSurface, m_eglSurface, m_eglContext))) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "PrepareDraw: param error");
return POSITION_ERROR;
}// 下列方法无返回值
glViewport(DEFAULT_X_POSITION, DEFAULT_X_POSITION, m_width, m_height);
glClearColor(GL_RED_DEFAULT, GL_GREEN_DEFAULT, GL_BLUE_DEFAULT, GL_ALPHA_DEFAULT);
glClear(GL_COLOR_BUFFER_BIT);
glUseProgram(m_program);return glGetAttribLocation(m_program, POSITION_NAME);
}// 依据传入参数在指定区域绘制指定颜色
bool EGLCore::ExecuteDraw(GLint position, const GLfloat *color, const GLfloat rectangleVertices[],
unsigned long vertSize)
{
if ((0 > position) || (nullptr == color) || (RECTANGLE_VERTICES_SIZE != vertSize / sizeof(rectangleVertices[0]))) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "ExecuteDraw: param error");
return false;
}// 下列方法无返回值
glVertexAttribPointer(position, POINTER_SIZE, GL_FLOAT, GL_FALSE, 0, rectangleVertices);
glEnableVertexAttribArray(position);
glVertexAttrib4fv(1, color);
glDrawArrays(GL_TRIANGLE_FAN, 0, TRIANGLE_FAN_SIZE);
glDisableVertexAttribArray(position);return true;
}// 结束绘制操作
bool EGLCore::FinishDraw()
{
// 强制刷新缓冲
glFlush();
glFinish();// 交换前后缓存
return eglSwapBuffers(m_eglDisplay, m_eglSurface);
}
改变正方形的颜色。重新绘制一个大小相同、颜色不同的正方形,与原正方形地址交换,实现改变颜色的功能。
// common.h
/**
* 改变后绘制的颜色 #92D6CC
*/
const GLfloat CHANGE_COLOR[] = { 146.0f / 255, 214.0f / 255, 204.0f / 255, 1.0f };// egl_core.cpp
void EGLCore::ChangeColor()
{
// 界面未绘制矩形时退出
if (!m_flag) {
return;
}// 绘制准备工作
GLint position = PrepareDraw();
if (POSITION_ERROR == position) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "ChangeColor get position failed");
return;
}// 绘制背景
if (!ExecuteDraw(position, BACKGROUND_COLOR, BACKGROUND_RECTANGLE_VERTICES,
sizeof(BACKGROUND_RECTANGLE_VERTICES))) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "ChangeColor execute draw background failed");
return;
}// 确定绘制矩形的顶点,使用绘制区域的百分比表示
const GLfloat rectangleVertices[] = {
-m_widthPercent, FIFTY_PERCENT,
m_widthPercent, FIFTY_PERCENT,
m_widthPercent, -FIFTY_PERCENT,
-m_widthPercent, -FIFTY_PERCENT
};// 使用新的颜色绘制矩形
if (!ExecuteDraw(position, CHANGE_COLOR, rectangleVertices, sizeof(rectangleVertices))) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "ChangeColor execute draw rectangle failed");
return;
}// 结束绘制
if (!FinishDraw()) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "ChangeColor FinishDraw failed");
}
}
创建接口函数NapiDrawRectangle(),封装对应C++渲染方法。根据XComponent组件信息,获取对应的渲染模块render,调用绘制矩形的方法。
注册为ArkTS侧接口的方法,固定为napi_value (*napi_callback)(napi_env env, napi_callback_info info)类型,不可更改。napi_value为NAPI定义的指针,无返回值时返回 nullptr。
// plugin_render.cpp
// NAPI注册方法固定参数及返回值类型,无返回值时返回nullptr
napi_value PluginRender::NapiDrawRectangle(napi_env env, napi_callback_info info)
{
OH_LOG_Print(LOG_APP, LOG_INFO, LOG_PRINT_DOMAIN, "PluginRender", "NapiDrawRectangle");
if ((nullptr == env) || (nullptr == info)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "PluginRender", "NapiDrawRectangle: env or info is null");
return nullptr;
}// 获取环境变量参数
napi_value thisArg;
if (napi_ok != napi_get_cb_info(env, info, nullptr, nullptr, &thisArg, nullptr)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "PluginRender", "NapiDrawRectangle: napi_get_cb_info fail");
return nullptr;
}// 获取环境变量中XComponent实例
napi_value exportInstance;
if (napi_ok != napi_get_named_property(env, thisArg, OH_NATIVE_XCOMPONENT_OBJ, &exportInstance)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "PluginRender",
"NapiDrawRectangle: napi_get_named_property fail");
return nullptr;
}OH_NativeXComponent *nativeXComponent = nullptr;
if (napi_ok != napi_unwrap(env, exportInstance, reinterpret_cast<void **>(&nativeXComponent))) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "PluginRender", "NapiDrawRectangle: napi_unwrap fail");
return nullptr;
}// 获取XComponent实例的id
char idStr[OH_XCOMPONENT_ID_LEN_MAX + 1] = { '\0' };
uint64_t idSize = OH_XCOMPONENT_ID_LEN_MAX + 1;
if (OH_NATIVEXCOMPONENT_RESULT_SUCCESS != OH_NativeXComponent_GetXComponentId(nativeXComponent, idStr, &idSize)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "PluginRender",
"NapiDrawRectangle: Unable to get XComponent id");
return nullptr;
}std::string id(idStr);
PluginRender *render = PluginRender::GetInstance(id);
if (render) {
// 调用绘制矩形的方法
render->m_eglCore->Draw();
OH_LOG_Print(LOG_APP, LOG_INFO, LOG_PRINT_DOMAIN, "PluginRender", "render->m_eglCore->Draw() executed");
}
return nullptr;
}
使用NAPI中的napi_define_properties方法,将接口函数NapiDrawRectangle()注册为ArkTS侧接口drawRectangle(),在ArkTS侧调用drawRectangle()方法,完成正方形的绘制。
// plugin_render.cpp
void PluginRender::Export(napi_env env, napi_value exports)
{
if ((nullptr == env) || (nullptr == exports)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "PluginRender", "Export: env or exports is null");
return;
}// 将接口函数注册为ArkTS侧接口drawRectangle
napi_property_descriptor desc[] = {
{ "drawRectangle", nullptr, PluginRender::NapiDrawRectangle, nullptr, nullptr, nullptr, napi_default, nullptr }
};
if (napi_ok != napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "PluginRender", "Export: napi_define_properties failed");
}
}
通过将C++方法封装至触摸事件回调函数的方式,实现触摸绘制区域时改变正方形的颜色的功能。
// plugin_render.cpp
void DispatchTouchEventCB(OH_NativeXComponent *component, void *window)
{
OH_LOG_Print(LOG_APP, LOG_INFO, LOG_PRINT_DOMAIN, "Callback", "DispatchTouchEventCB");
if ((nullptr == component) || (nullptr == window)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "Callback",
"DispatchTouchEventCB: component or window is null");
return;
}char idStr[OH_XCOMPONENT_ID_LEN_MAX + 1] = { '\0' };
uint64_t idSize = OH_XCOMPONENT_ID_LEN_MAX + 1;
if (OH_NATIVEXCOMPONENT_RESULT_SUCCESS != OH_NativeXComponent_GetXComponentId(component, idStr, &idSize)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "Callback",
"DispatchTouchEventCB: Unable to get XComponent id");
return;
}std::string id(idStr);
PluginRender *render = PluginRender::GetInstance(id);
if (nullptr != render) {
// 封装改变颜色的函数
render->m_eglCore->ChangeColor();
}
}PluginRender::PluginRender(std::string &id)
{
this->m_id = id;
this->m_eglCore = new EGLCore();
auto renderCallback = &PluginRender::m_callback;
renderCallback->OnSurfaceCreated = OnSurfaceCreatedCB;
renderCallback->OnSurfaceChanged = OnSurfaceChangedCB;
renderCallback->OnSurfaceDestroyed = OnSurfaceDestroyedCB;// 设置触摸事件的回调函数,在触摸事件触发时调用NAPI接口函数,从而调用原C++方法
renderCallback->DispatchTouchEvent = DispatchTouchEventCB;
}
7.4 释放相关资源
释放申请资源的步骤如下:
EGLCore类下创建Release()方法,释放初始化环境时申请的资源,包含窗口display、渲染区域surface、环境上下文context等。
PluginRender类添加Release()方法,释放EGLCore实例及PluginRender实例。
创建一个新方法OnSurfaceDestroyedCB(),将PluginRender类内释放资源的方法Release()封装于其中。
将新方法绑定为组件销毁事件的回调方法,组件销毁时触发,释放相关资源。
// egl_core.cpp
void EGLCore::Release()
{
if ((nullptr == m_eglDisplay) || (nullptr == m_eglSurface) || (!eglDestroySurface(m_eglDisplay, m_eglSurface))) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "Release eglDestroySurface failed");
}if ((nullptr == m_eglDisplay) || (nullptr == m_eglContext) || (!eglDestroyContext(m_eglDisplay, m_eglContext))) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "Release eglDestroyContext failed");
}if ((nullptr == m_eglDisplay) || (!eglTerminate(m_eglDisplay))) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "EGLCore", "Release eglTerminate failed");
}
}// plugin_render.cpp
void PluginRender::Release(std::string &id)
{
PluginRender *render = PluginRender::GetInstance(id);
if (nullptr != render) {
render->m_eglCore->Release();
delete render->m_eglCore;
render->m_eglCore = nullptr;
delete render;
render = nullptr;
m_instance.erase(m_instance.find(id));
}
}void OnSurfaceDestroyedCB(OH_NativeXComponent *component, void *window)
{
OH_LOG_Print(LOG_APP, LOG_INFO, LOG_PRINT_DOMAIN, "Callback", "OnSurfaceDestroyedCB");
if ((nullptr == component) || (nullptr == window)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "Callback",
"OnSurfaceDestroyedCB: component or window is null");
return;
}char idStr[OH_XCOMPONENT_ID_LEN_MAX + 1] = { '\0' };
uint64_t idSize = OH_XCOMPONENT_ID_LEN_MAX + 1;
if (OH_NATIVEXCOMPONENT_RESULT_SUCCESS != OH_NativeXComponent_GetXComponentId(component, idStr, &idSize)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "Callback",
"OnSurfaceDestroyedCB: Unable to get XComponent id");
return;
}// 释放申请的资源
std::string id(idStr);
PluginRender::Release(id);
}PluginRender::PluginRender(std::string &id)
{
this->m_id = id;
this->m_eglCore = new EGLCore();
OH_NativeXComponent_Callback *renderCallback = &PluginRender::m_callback;
renderCallback->OnSurfaceCreated = OnSurfaceCreatedCB;
renderCallback->OnSurfaceChanged = OnSurfaceChangedCB;// 设置组件销毁事件的回调函数,组件销毁时触发相关操作,释放申请的资源
renderCallback->OnSurfaceDestroyed = OnSurfaceDestroyedCB;
renderCallback->DispatchTouchEvent = DispatchTouchEventCB;
}
Native C++模板创建项目会自动生成此结构代码,开发者可根据实际情况修改其中内容。
// napi_init.cpp
static napi_value Init(napi_env env, napi_value exports)
{
OH_LOG_Print(LOG_APP, LOG_INFO, LOG_PRINT_DOMAIN, "Init", "Init begins");
if ((nullptr == env) || (nullptr == exports)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "Init", "env or exports is null");
return nullptr;
}napi_property_descriptor desc[] = {
{ "getContext", nullptr, PluginManager::GetContext, nullptr, nullptr, nullptr, napi_default, nullptr }
};// 将接口函数注册为ArkTS侧接口getContext()
if (napi_ok != napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc)) {
OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "Init", "napi_define_properties failed");
return nullptr;
}// 方法内检查环境变量是否包含XComponent组件实例,若实例存在注册绘制相关接口
PluginManager::GetInstance()->Export(env, exports);
return exports;
}static napi_module nativerenderModule = {
.nm_version = 1,
.nm_flags = 0,
.nm_filename = nullptr,
.nm_register_func = Init, // 入口函数
.nm_modname = "nativerender", // 模块名称
.nm_priv = ((void *)0),
.reserved = { 0 }
};extern "C" __attribute__((constructor)) void RegisterModule(void)
{
napi_module_register(&nativerenderModule);
}
使用CMake工具链将C++源代码编译成动态链接库文件。本篇Codelab中会链接两次动态库,第一次为import语句,第二次为XComponent组件链接动态库。
# CMakeList.txt
# 声明使用 CMAKE 的最小版本号
cmake_minimum_required(VERSION 3.4.1)# 配置项目信息
project(XComponent)# set命令,格式为set(key value),表示设置key的值为value
set(NATIVERENDER_ROOT_PATH ${CMAKE_CURRENT_SOURCE_DIR})# 设置头文件的搜索目录
include_directories(
${NATIVERENDER_ROOT_PATH}
${NATIVERENDER_ROOT_PATH}/include
)# 添加名为nativerender的库,库文件名为libnativerender.so,添加cpp文件
add_library(nativerender SHARED
render/egl_core.cpp
render/plugin_render.cpp
manager/plugin_manager.cpp
napi_init.cpp
)
...
# 添加构建需要链接的库
target_link_libraries(nativerender PUBLIC ${EGL-lib} ${GLES-lib} ${hilog-lib} ${libace-lib} ${libnapi-lib} ${libuv-lib} libc++.a)
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