dl_android.h

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#pragma once
 
#include "system/dl_platform.h"
#if DL_PLATFORM == DL_PLATFORM_ANDROID
#include <android/native_window_jni.h>
#include <game-activity/native_app_glue/android_native_app_glue.h>
#include <android/asset_manager_jni.h>
#include <android/asset_manager.h>
 
#include "io/dl_log.h"
#include "base/dl_type_def.h"
#include "system/dl_time.h"
 
namespace dl
{
 
// 安卓输入事件处理
int32_t Android_HandleInput(android_app* app);
 
// 安卓事件处理
bool Android_ProcessEvent(android_app* app);
 
// 安卓app_cmd处理
void Android_OnAppCmd(android_app *app, int32_t cmd);

struct AndroidData
{
    android_app* _app;
    int _surfaceState;// 0.无效 1.安卓已创建，但未重置交换链 2.正常
    Point _sizeWindow; // 0表示窗口未就绪
    bool _bRequestDestroy;// 用户层的中止
    bool _bPause;// Activity触发onPause等切换，会丢失surface
    AndroidData(android_app* app):
            _app{app},
            _surfaceState{0},
            _sizeWindow{},
            _bRequestDestroy{false},
            _bPause{false}
    {}
    void Init()
    {
        // 过滤器
        android_app_set_key_event_filter(_app, NULL);
        android_app_set_motion_event_filter(_app, NULL);
 
        _app->onAppCmd                                  = Android_OnAppCmd;
        //app->activity->callbacks->onContentRectChanged = on_content_rect_changed;
        _app->userData                                  = this;
        do
        {
            if (!Android_ProcessEvent(_app))
            {
                log_info0("Android app has been destroyed by the OS!");
                return ;//ExitCode::Close;
            }
        } while (_surfaceState == 0);
    }
};
extern AndroidData* g_android;
 
// glfw接口安卓平台封装
struct GLFWwindow{};
struct GLFWmonitor{};
 
inline bool glfwInit() { return true; }
 
inline bool glfwWindowShouldClose(void *window)
{
    return g_android->_app->destroyRequested || g_android->_bRequestDestroy;
}
 
inline void glfwGetFramebufferSize(void *window, int *w, int *h)
{
    *w = g_android->_sizeWindow[0];
    *h = g_android->_sizeWindow[1];
}
 
inline const char **glfwGetRequiredInstanceExtensions(uint32_t *count)
{
    static const char *ret[] = {
            "VK_KHR_surface",
            "VK_KHR_android_surface"
    };
    *count = 2;
    return ret;
}
 
inline void glfwWaitEvents()
{
    Android_ProcessEvent(g_android->_app);
}
 
inline void glfwDestroyWindow(void *window)
{
    // nothing to do
}
 
inline void glfwTerminate()
{
    // nothing to do
}
 
inline void glfwSetCursorPos(void *window, int x, int y)
{
    // nothing to do
}
 
inline void glfwSetWindowShouldClose(void *window, int)
{
    g_android->_bRequestDestroy = true;
}
 
inline void glfwSetClipboardString(void *, const char *)
{
    // todo
}
 
inline const char* glfwGetClipboardString(void *)
{
    return "glfwGetClipboardString not support!";
}
 
 
inline void glfwGetWindowSize(void *window, int *w, int *h)
{
    *w = g_android->_sizeWindow[0];
    *h = g_android->_sizeWindow[1];
}
 
inline void glfwGetMonitorWorkarea(void *monitor, int *x, int *y, int *w, int *h)
{
    *x = 0;
    *y = 0;
    *w = g_android->_sizeWindow[0];
    *h = g_android->_sizeWindow[1];
}
 
inline void glfwSetWindowPos(void *window, int x, int y)
{
    // nothing to do
}
 
inline void glfwPollEvents()
{
    Android_ProcessEvent(g_android->_app);
}
 
}
#endif